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flutter / third_party / protobuf / 80a5a511e47a33a860b004e3336ba89ab45058f0 / . / ruby / ext / google / protobuf_c / ruby-upb.c
blob: af4351e444cbee149c760061e4bf6687cc7d6232 [file] [log] [blame]
/* Amalgamated source file */
#include "ruby-upb.h"
/*
* This is where we define internal portability macros used across upb.
*
* All of these macros are undef'd in undef.inc to avoid leaking them to users.
*
* The correct usage is:
*
* #include "upb/foobar.h"
* #include "upb/baz.h"
*
* // MUST be last included header.
* #include "upb/port/def.inc"
*
* // Code for this file.
* // <...>
*
* // Can be omitted for .c files, required for .h.
* #include "upb/port/undef.inc"
*
* This file is private and must not be included by users!
*/
#if !((defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
(defined(__cplusplus) && __cplusplus >= 201402L) || \
(defined(_MSC_VER) && _MSC_VER >= 1900))
#error upb requires C99 or C++14 or MSVC >= 2015.
#endif
// Portable check for GCC minimum version:
// https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
#define UPB_GNUC_MIN(x, y) \
(__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y))
#else
#define UPB_GNUC_MIN(x, y) 0
#endif
#include <assert.h>
#include <setjmp.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#ifndef UINTPTR_MAX
Error, UINTPTR_MAX is undefined
#endif
#if UINTPTR_MAX == 0xffffffff
#define UPB_SIZE(size32, size64) size32
#else
#define UPB_SIZE(size32, size64) size64
#endif
/* If we always read/write as a consistent type to each address, this shouldn't
* violate aliasing.
*/
#define UPB_PTR_AT(msg, ofs, type) ((type*)((char*)(msg) + (ofs)))
// A flexible array member may have lower alignment requirements than the struct
// overall - in that case, it can overlap with the trailing padding of the rest
// of the struct, and a naive sizeof(base) + sizeof(flex) * count calculation
// will not take into account that overlap, and allocate more than is required.
#define UPB_SIZEOF_FLEX(type, member, count) \
(UPB_MAX(sizeof(type), \
(offsetof(type, member) + \
count * (offsetof(type, member[1]) - offsetof(type, member[0])))))
#define UPB_MAPTYPE_STRING 0
// UPB_EXPORT: always generate a public symbol.
#if defined(__GNUC__) || defined(__clang__)
#define UPB_EXPORT __attribute__((visibility("default"))) __attribute__((used))
#else
#define UPB_EXPORT
#endif
// UPB_INLINE: inline if possible, emit standalone code if required.
#ifdef __cplusplus
#define UPB_INLINE inline
#elif defined (__GNUC__) || defined(__clang__)
#define UPB_INLINE static __inline__
#else
#define UPB_INLINE static
#endif
#ifdef UPB_BUILD_API
#define UPB_API UPB_EXPORT
#define UPB_API_INLINE UPB_EXPORT
#else
#define UPB_API
#define UPB_API_INLINE UPB_INLINE
#endif
#ifdef EXPORT_UPBC
#define UPBC_API UPB_EXPORT
#else
#define UPBC_API
#endif
#define UPB_MALLOC_ALIGN 8
#define UPB_ALIGN_UP(size, align) (((size) + (align) - 1) / (align) * (align))
#define UPB_ALIGN_DOWN(size, align) ((size) / (align) * (align))
#define UPB_ALIGN_MALLOC(size) UPB_ALIGN_UP(size, UPB_MALLOC_ALIGN)
#ifdef __clang__
#define UPB_ALIGN_OF(type) _Alignof(type)
#else
#define UPB_ALIGN_OF(type) offsetof (struct { char c; type member; }, member)
#endif
#ifdef _MSC_VER
// Some versions of our Windows compiler don't support the C11 syntax.
#define UPB_ALIGN_AS(x) __declspec(align(x))
#else
#define UPB_ALIGN_AS(x) _Alignas(x)
#endif
// Hints to the compiler about likely/unlikely branches.
#if defined (__GNUC__) || defined(__clang__)
#define UPB_LIKELY(x) __builtin_expect((bool)(x), 1)
#define UPB_UNLIKELY(x) __builtin_expect((bool)(x), 0)
#else
#define UPB_LIKELY(x) (x)
#define UPB_UNLIKELY(x) (x)
#endif
// Macros for function attributes on compilers that support them.
#ifdef __GNUC__
#define UPB_FORCEINLINE __inline__ __attribute__((always_inline)) static
#define UPB_NOINLINE __attribute__((noinline))
#define UPB_NORETURN __attribute__((__noreturn__))
#define UPB_PRINTF(str, first_vararg) __attribute__((format (printf, str, first_vararg)))
#elif defined(_MSC_VER)
#define UPB_NOINLINE
#define UPB_FORCEINLINE static
#define UPB_NORETURN __declspec(noreturn)
#define UPB_PRINTF(str, first_vararg)
#else /* !defined(__GNUC__) */
#define UPB_FORCEINLINE static
#define UPB_NOINLINE
#define UPB_NORETURN
#define UPB_PRINTF(str, first_vararg)
#endif
#define UPB_MAX(x, y) ((x) > (y) ? (x) : (y))
#define UPB_MIN(x, y) ((x) < (y) ? (x) : (y))
#define UPB_UNUSED(var) (void)var
// UPB_ASSUME(): in release mode, we tell the compiler to assume this is true.
#ifdef NDEBUG
#ifdef __GNUC__
#define UPB_ASSUME(expr) if (!(expr)) __builtin_unreachable()
#elif defined _MSC_VER
#define UPB_ASSUME(expr) if (!(expr)) __assume(0)
#else
#define UPB_ASSUME(expr) do {} while (false && (expr))
#endif
#else
#define UPB_ASSUME(expr) assert(expr)
#endif
/* UPB_ASSERT(): in release mode, we use the expression without letting it be
* evaluated. This prevents "unused variable" warnings. */
#ifdef NDEBUG
#define UPB_ASSERT(expr) do {} while (false && (expr))
#else
#define UPB_ASSERT(expr) assert(expr)
#endif
#if defined(__GNUC__) || defined(__clang__)
#define UPB_UNREACHABLE() do { assert(0); __builtin_unreachable(); } while(0)
#elif defined(_MSC_VER)
#define UPB_UNREACHABLE() \
do { \
assert(0); \
__assume(0); \
} while (0)
#else
#define UPB_UNREACHABLE() do { assert(0); } while(0)
#endif
/* UPB_SETJMP() / UPB_LONGJMP() */
// Android uses a custom libc that does not implement all of posix, but it has
// had sigsetjmp/siglongjmp forever on arm and since API 12 on x86. Apple has
// sigsetjmp, but does not define the posix feature test macro.
#if defined(__APPLE__) || defined(_POSIX_C_SOURCE) || defined(__ANDROID__)
// avoid setting/restoring signal mask, which involves costly syscalls
#define UPB_SETJMP(buf) sigsetjmp(buf, 0)
#define UPB_LONGJMP(buf, val) siglongjmp(buf, val)
#elif defined(WASM_WAMR)
#define UPB_SETJMP(buf) 0
#define UPB_LONGJMP(buf, val) abort()
#else
#define UPB_SETJMP(buf) setjmp(buf)
#define UPB_LONGJMP(buf, val) longjmp(buf, val)
#endif
#ifdef __GNUC__
#define UPB_USE_C11_ATOMICS
#define UPB_ATOMIC(T) _Atomic(T)
#else
#define UPB_ATOMIC(T) T
#endif
/* UPB_PTRADD(ptr, ofs): add pointer while avoiding "NULL + 0" UB */
#define UPB_PTRADD(ptr, ofs) ((ofs) ? (ptr) + (ofs) : (ptr))
#define UPB_PRIVATE(x) x##_dont_copy_me__upb_internal_use_only
#ifdef UPB_ALLOW_PRIVATE_ACCESS__FOR_BITS_ONLY
#define UPB_ONLYBITS(x) x
#else
#define UPB_ONLYBITS(x) UPB_PRIVATE(x)
#endif
/* Configure whether fasttable is switched on or not. *************************/
#ifdef __has_attribute
#define UPB_HAS_ATTRIBUTE(x) __has_attribute(x)
#else
#define UPB_HAS_ATTRIBUTE(x) 0
#endif
#if UPB_HAS_ATTRIBUTE(musttail)
#define UPB_MUSTTAIL __attribute__((musttail))
#else
#define UPB_MUSTTAIL
#endif
#undef UPB_HAS_ATTRIBUTE
/* This check is not fully robust: it does not require that we have "musttail"
* support available. We need tail calls to avoid consuming arbitrary amounts
* of stack space.
*
* GCC/Clang can mostly be trusted to generate tail calls as long as
* optimization is enabled, but, debug builds will not generate tail calls
* unless "musttail" is available.
*
* We should probably either:
* 1. require that the compiler supports musttail.
* 2. add some fallback code for when musttail isn't available (ie. return
* instead of tail calling). This is safe and portable, but this comes at
* a CPU cost.
*/
#if (defined(__x86_64__) || defined(__aarch64__)) && defined(__GNUC__)
#define UPB_FASTTABLE_SUPPORTED 1
#else
#define UPB_FASTTABLE_SUPPORTED 0
#endif
/* define UPB_ENABLE_FASTTABLE to force fast table support.
* This is useful when we want to ensure we are really getting fasttable,
* for example for testing or benchmarking. */
#if defined(UPB_ENABLE_FASTTABLE)
#if !UPB_FASTTABLE_SUPPORTED
#error fasttable is x86-64/ARM64 only and requires GCC or Clang.
#endif
#define UPB_FASTTABLE 1
/* Define UPB_TRY_ENABLE_FASTTABLE to use fasttable if possible.
* This is useful for releasing code that might be used on multiple platforms,
* for example the PHP or Ruby C extensions. */
#elif defined(UPB_TRY_ENABLE_FASTTABLE)
#define UPB_FASTTABLE UPB_FASTTABLE_SUPPORTED
#else
#define UPB_FASTTABLE 0
#endif
/* UPB_FASTTABLE_INIT() allows protos compiled for fasttable to gracefully
* degrade to non-fasttable if the runtime or platform do not support it. */
#if !UPB_FASTTABLE
#define UPB_FASTTABLE_INIT(...)
#define UPB_FASTTABLE_MASK(mask) -1
#else
#define UPB_FASTTABLE_INIT(...) __VA_ARGS__
#define UPB_FASTTABLE_MASK(mask) mask
#endif
#undef UPB_FASTTABLE_SUPPORTED
/* ASAN poisoning (for arena).
* If using UPB from an interpreted language like Ruby, a build of the
* interpreter compiled with ASAN enabled must be used in order to get sane and
* expected behavior.
*/
/* Due to preprocessor limitations, the conditional logic for setting
* UPN_CLANG_ASAN below cannot be consolidated into a portable one-liner.
* See https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005fattribute.html.
*/
#if defined(__has_feature)
#if __has_feature(address_sanitizer)
#define UPB_CLANG_ASAN 1
#else
#define UPB_CLANG_ASAN 0
#endif
#else
#define UPB_CLANG_ASAN 0
#endif
#if defined(__SANITIZE_ADDRESS__) || UPB_CLANG_ASAN
#define UPB_ASAN 1
#define UPB_ASAN_GUARD_SIZE 32
#ifdef __cplusplus
extern "C" {
#endif
void __asan_poison_memory_region(void const volatile *addr, size_t size);
void __asan_unpoison_memory_region(void const volatile *addr, size_t size);
#ifdef __cplusplus
} /* extern "C" */
#endif
#define UPB_POISON_MEMORY_REGION(addr, size) \
__asan_poison_memory_region((addr), (size))
#define UPB_UNPOISON_MEMORY_REGION(addr, size) \
__asan_unpoison_memory_region((addr), (size))
#else
#define UPB_ASAN 0
#define UPB_ASAN_GUARD_SIZE 0
#define UPB_POISON_MEMORY_REGION(addr, size) \
((void)(addr), (void)(size))
#define UPB_UNPOISON_MEMORY_REGION(addr, size) \
((void)(addr), (void)(size))
#endif
/* Disable proto2 arena behavior (TEMPORARY) **********************************/
#ifdef UPB_DISABLE_CLOSED_ENUM_CHECKING
#define UPB_TREAT_CLOSED_ENUMS_LIKE_OPEN 1
#else
#define UPB_TREAT_CLOSED_ENUMS_LIKE_OPEN 0
#endif
#if defined(__cplusplus)
#if defined(__clang__) || UPB_GNUC_MIN(6, 0)
// https://gcc.gnu.org/gcc-6/changes.html
#if __cplusplus >= 201402L
#define UPB_DEPRECATED [[deprecated]]
#else
#define UPB_DEPRECATED __attribute__((deprecated))
#endif
#else
#define UPB_DEPRECATED
#endif
#else
#define UPB_DEPRECATED
#endif
#if defined(UPB_IS_GOOGLE3) && \
(!defined(UPB_BOOTSTRAP_STAGE) || UPB_BOOTSTRAP_STAGE != 0)
#define UPB_DESC(sym) proto2_##sym
#define UPB_DESC_MINITABLE(sym) &proto2__##sym##_msg_init
#elif defined(UPB_BOOTSTRAP_STAGE) && UPB_BOOTSTRAP_STAGE == 0
#define UPB_DESC(sym) google_protobuf_##sym
#define UPB_DESC_MINITABLE(sym) google__protobuf__##sym##_msg_init()
#else
#define UPB_DESC(sym) google_protobuf_##sym
#define UPB_DESC_MINITABLE(sym) &google__protobuf__##sym##_msg_init
#endif
#undef UPB_IS_GOOGLE3
// Linker arrays combine elements from multiple translation units into a single
// array that can be iterated over at runtime.
//
// It is an alternative to pre-main "registration" functions.
//
// Usage:
//
// // In N translation units.
// UPB_LINKARR_APPEND(foo_array) static int elems[3] = {1, 2, 3};
//
// // At runtime:
// UPB_LINKARR_DECLARE(foo_array, int);
//
// void f() {
// const int* start = UPB_LINKARR_START(foo_array);
// const int* stop = UPB_LINKARR_STOP(foo_array);
// for (const int* p = start; p < stop; p++) {
// // Windows can introduce zero padding, so we have to skip zeroes.
// if (*p != 0) {
// vec.push_back(*p);
// }
// }
// }
#if defined(__ELF__) || defined(__wasm__)
#define UPB_LINKARR_APPEND(name) \
__attribute__((retain, used, section("linkarr_" #name), \
no_sanitize("address")))
#define UPB_LINKARR_DECLARE(name, type) \
extern type const __start_linkarr_##name; \
extern type const __stop_linkarr_##name; \
UPB_LINKARR_APPEND(name) type UPB_linkarr_internal_empty_##name[1]
#define UPB_LINKARR_START(name) (&__start_linkarr_##name)
#define UPB_LINKARR_STOP(name) (&__stop_linkarr_##name)
#elif defined(__MACH__)
/* As described in: https://stackoverflow.com/a/22366882 */
#define UPB_LINKARR_APPEND(name) \
__attribute__((retain, used, section("__DATA,__la_" #name), \
no_sanitize("address")))
#define UPB_LINKARR_DECLARE(name, type) \
extern type const __start_linkarr_##name __asm( \
"section$start$__DATA$__la_" #name); \
extern type const __stop_linkarr_##name __asm( \
"section$end$__DATA$" \
"__la_" #name); \
UPB_LINKARR_APPEND(name) type UPB_linkarr_internal_empty_##name[1]
#define UPB_LINKARR_START(name) (&__start_linkarr_##name)
#define UPB_LINKARR_STOP(name) (&__stop_linkarr_##name)
#elif defined(_MSC_VER) && defined(__clang__)
/* See:
* https://devblogs.microsoft.com/oldnewthing/20181107-00/?p=100155
* https://devblogs.microsoft.com/oldnewthing/20181108-00/?p=100165
* https://devblogs.microsoft.com/oldnewthing/20181109-00/?p=100175 */
// Usage of __attribute__ here probably means this is Clang-specific, and would
// not work on MSVC.
#define UPB_LINKARR_APPEND(name) \
__declspec(allocate("la_" #name "$j")) \
__attribute__((retain, used, no_sanitize("address")))
#define UPB_LINKARR_DECLARE(name, type) \
__declspec(allocate("la_" #name "$a")) type __start_linkarr_##name; \
__declspec(allocate("la_" #name "$z")) type __stop_linkarr_##name; \
UPB_LINKARR_APPEND(name) type UPB_linkarr_internal_empty_##name[1] = {0}
#define UPB_LINKARR_START(name) (&__start_linkarr_##name)
#define UPB_LINKARR_STOP(name) (&__stop_linkarr_##name)
#else
// Linker arrays are not supported on this platform. Make appends a no-op but
// don't define the other macros.
#define UPB_LINKARR_APPEND(name)
#endif
// Future versions of upb will include breaking changes to some APIs.
// This macro can be set to enable these API changes ahead of time, so that
// user code can be updated before upgrading versions of protobuf.
#ifdef UPB_FUTURE_BREAKING_CHANGES
// Properly enforce closed enums in python.
// Owner: mkruskal@
#define UPB_FUTURE_PYTHON_CLOSED_ENUM_ENFORCEMENT 1
#endif
#include <errno.h>
#include <float.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
// Must be last.
void upb_Status_Clear(upb_Status* status) {
if (!status) return;
status->ok = true;
status->msg[0] = '\0';
}
bool upb_Status_IsOk(const upb_Status* status) { return status->ok; }
const char* upb_Status_ErrorMessage(const upb_Status* status) {
return status->msg;
}
void upb_Status_SetErrorMessage(upb_Status* status, const char* msg) {
if (!status) return;
status->ok = false;
strncpy(status->msg, msg, _kUpb_Status_MaxMessage - 1);
status->msg[_kUpb_Status_MaxMessage - 1] = '\0';
}
void upb_Status_SetErrorFormat(upb_Status* status, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
upb_Status_VSetErrorFormat(status, fmt, args);
va_end(args);
}
void upb_Status_VSetErrorFormat(upb_Status* status, const char* fmt,
va_list args) {
if (!status) return;
status->ok = false;
vsnprintf(status->msg, sizeof(status->msg), fmt, args);
status->msg[_kUpb_Status_MaxMessage - 1] = '\0';
}
void upb_Status_VAppendErrorFormat(upb_Status* status, const char* fmt,
va_list args) {
size_t len;
if (!status) return;
status->ok = false;
len = strlen(status->msg);
vsnprintf(status->msg + len, sizeof(status->msg) - len, fmt, args);
status->msg[_kUpb_Status_MaxMessage - 1] = '\0';
}
static const char* _upb_EpsCopyInputStream_NoOpCallback(
upb_EpsCopyInputStream* e, const char* old_end, const char* new_start) {
return new_start;
}
const char* _upb_EpsCopyInputStream_IsDoneFallbackNoCallback(
upb_EpsCopyInputStream* e, const char* ptr, int overrun) {
return _upb_EpsCopyInputStream_IsDoneFallbackInline(
e, ptr, overrun, _upb_EpsCopyInputStream_NoOpCallback);
}
#include <errno.h>
#include <float.h>
#include <inttypes.h>
#include <limits.h>
#include <math.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
// Must be last.
typedef struct {
const char *ptr, *end;
upb_Arena* arena; /* TODO: should we have a tmp arena for tmp data? */
const upb_DefPool* symtab;
int depth;
int result;
upb_Status* status;
jmp_buf err;
int line;
const char* line_begin;
bool is_first;
int options;
const upb_FieldDef* debug_field;
} jsondec;
typedef struct {
upb_MessageValue value;
bool ignore;
} upb_JsonMessageValue;
enum { JD_OBJECT, JD_ARRAY, JD_STRING, JD_NUMBER, JD_TRUE, JD_FALSE, JD_NULL };
/* Forward declarations of mutually-recursive functions. */
static void jsondec_wellknown(jsondec* d, upb_Message* msg,
const upb_MessageDef* m);
static upb_JsonMessageValue jsondec_value(jsondec* d, const upb_FieldDef* f);
static void jsondec_wellknownvalue(jsondec* d, upb_Message* msg,
const upb_MessageDef* m);
static void jsondec_object(jsondec* d, upb_Message* msg,
const upb_MessageDef* m);
static bool jsondec_streql(upb_StringView str, const char* lit) {
return str.size == strlen(lit) && memcmp(str.data, lit, str.size) == 0;
}
static bool jsondec_isnullvalue(const upb_FieldDef* f) {
return upb_FieldDef_CType(f) == kUpb_CType_Enum &&
strcmp(upb_EnumDef_FullName(upb_FieldDef_EnumSubDef(f)),
"google.protobuf.NullValue") == 0;
}
static bool jsondec_isvalue(const upb_FieldDef* f) {
return (upb_FieldDef_CType(f) == kUpb_CType_Message &&
upb_MessageDef_WellKnownType(upb_FieldDef_MessageSubDef(f)) ==
kUpb_WellKnown_Value) ||
jsondec_isnullvalue(f);
}
static void jsondec_seterrmsg(jsondec* d, const char* msg) {
upb_Status_SetErrorFormat(d->status, "Error parsing JSON @%d:%d: %s", d->line,
(int)(d->ptr - d->line_begin), msg);
}
UPB_NORETURN static void jsondec_err(jsondec* d, const char* msg) {
jsondec_seterrmsg(d, msg);
UPB_LONGJMP(d->err, 1);
}
UPB_PRINTF(2, 3)
UPB_NORETURN static void jsondec_errf(jsondec* d, const char* fmt, ...) {
va_list argp;
upb_Status_SetErrorFormat(d->status, "Error parsing JSON @%d:%d: ", d->line,
(int)(d->ptr - d->line_begin));
va_start(argp, fmt);
upb_Status_VAppendErrorFormat(d->status, fmt, argp);
va_end(argp);
UPB_LONGJMP(d->err, 1);
}
// Advances d->ptr until the next non-whitespace character or to the end of
// the buffer.
static void jsondec_consumews(jsondec* d) {
while (d->ptr != d->end) {
switch (*d->ptr) {
case '\n':
d->line++;
d->line_begin = d->ptr;
/* Fallthrough. */
case '\r':
case '\t':
case ' ':
d->ptr++;
break;
default:
return;
}
}
}
// Advances d->ptr until the next non-whitespace character. Postcondition that
// d->ptr is pointing at a valid non-whitespace character (will err if end of
// buffer is reached).
static void jsondec_skipws(jsondec* d) {
jsondec_consumews(d);
if (d->ptr == d->end) {
jsondec_err(d, "Unexpected EOF");
}
}
static bool jsondec_tryparsech(jsondec* d, char ch) {
if (d->ptr == d->end || *d->ptr != ch) return false;
d->ptr++;
return true;
}
static void jsondec_parselit(jsondec* d, const char* lit) {
size_t avail = d->end - d->ptr;
size_t len = strlen(lit);
if (avail < len || memcmp(d->ptr, lit, len) != 0) {
jsondec_errf(d, "Expected: '%s'", lit);
}
d->ptr += len;
}
static void jsondec_wsch(jsondec* d, char ch) {
jsondec_skipws(d);
if (!jsondec_tryparsech(d, ch)) {
jsondec_errf(d, "Expected: '%c'", ch);
}
}
static void jsondec_true(jsondec* d) { jsondec_parselit(d, "true"); }
static void jsondec_false(jsondec* d) { jsondec_parselit(d, "false"); }
static void jsondec_null(jsondec* d) { jsondec_parselit(d, "null"); }
static void jsondec_entrysep(jsondec* d) {
jsondec_skipws(d);
jsondec_parselit(d, ":");
}
static int jsondec_rawpeek(jsondec* d) {
if (d->ptr == d->end) {
jsondec_err(d, "Unexpected EOF");
}
switch (*d->ptr) {
case '{':
return JD_OBJECT;
case '[':
return JD_ARRAY;
case '"':
return JD_STRING;
case '-':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return JD_NUMBER;
case 't':
return JD_TRUE;
case 'f':
return JD_FALSE;
case 'n':
return JD_NULL;
default:
jsondec_errf(d, "Unexpected character: '%c'", *d->ptr);
}
}
/* JSON object/array **********************************************************/
/* These are used like so:
*
* jsondec_objstart(d);
* while (jsondec_objnext(d)) {
* ...
* }
* jsondec_objend(d) */
static int jsondec_peek(jsondec* d) {
jsondec_skipws(d);
return jsondec_rawpeek(d);
}
static void jsondec_push(jsondec* d) {
if (--d->depth < 0) {
jsondec_err(d, "Recursion limit exceeded");
}
d->is_first = true;
}
static bool jsondec_seqnext(jsondec* d, char end_ch) {
bool is_first = d->is_first;
d->is_first = false;
jsondec_skipws(d);
if (*d->ptr == end_ch) return false;
if (!is_first) jsondec_parselit(d, ",");
return true;
}
static void jsondec_arrstart(jsondec* d) {
jsondec_push(d);
jsondec_wsch(d, '[');
}
static void jsondec_arrend(jsondec* d) {
d->depth++;
jsondec_wsch(d, ']');
}
static bool jsondec_arrnext(jsondec* d) { return jsondec_seqnext(d, ']'); }
static void jsondec_objstart(jsondec* d) {
jsondec_push(d);
jsondec_wsch(d, '{');
}
static void jsondec_objend(jsondec* d) {
d->depth++;
jsondec_wsch(d, '}');
}
static bool jsondec_objnext(jsondec* d) {
if (!jsondec_seqnext(d, '}')) return false;
if (jsondec_peek(d) != JD_STRING) {
jsondec_err(d, "Object must start with string");
}
return true;
}
/* JSON number ****************************************************************/
static bool jsondec_tryskipdigits(jsondec* d) {
const char* start = d->ptr;
while (d->ptr < d->end) {
if (*d->ptr < '0' || *d->ptr > '9') {
break;
}
d->ptr++;
}
return d->ptr != start;
}
static void jsondec_skipdigits(jsondec* d) {
if (!jsondec_tryskipdigits(d)) {
jsondec_err(d, "Expected one or more digits");
}
}
static double jsondec_number(jsondec* d) {
const char* start = d->ptr;
UPB_ASSERT(jsondec_rawpeek(d) == JD_NUMBER);
/* Skip over the syntax of a number, as specified by JSON. */
if (*d->ptr == '-') d->ptr++;
if (jsondec_tryparsech(d, '0')) {
if (jsondec_tryskipdigits(d)) {
jsondec_err(d, "number cannot have leading zero");
}
} else {
jsondec_skipdigits(d);
}
if (d->ptr == d->end) goto parse;
if (jsondec_tryparsech(d, '.')) {
jsondec_skipdigits(d);
}
if (d->ptr == d->end) goto parse;
if (*d->ptr == 'e' || *d->ptr == 'E') {
d->ptr++;
if (d->ptr == d->end) {
jsondec_err(d, "Unexpected EOF in number");
}
if (*d->ptr == '+' || *d->ptr == '-') {
d->ptr++;
}
jsondec_skipdigits(d);
}
parse:
/* Having verified the syntax of a JSON number, use strtod() to parse
* (strtod() accepts a superset of JSON syntax). */
errno = 0;
{
// Copy the number into a null-terminated scratch buffer since strtod
// expects a null-terminated string.
char nullz[64];
ptrdiff_t len = d->ptr - start;
if (len > (ptrdiff_t)(sizeof(nullz) - 1)) {
jsondec_err(d, "excessively long number");
}
memcpy(nullz, start, len);
nullz[len] = '\0';
char* end;
double val = strtod(nullz, &end);
UPB_ASSERT(end - nullz == len);
/* Currently the min/max-val conformance tests fail if we check this. Does
* this mean the conformance tests are wrong or strtod() is wrong, or
* something else? Investigate further. */
/*
if (errno == ERANGE) {
jsondec_err(d, "Number out of range");
}
*/
if (val > DBL_MAX || val < -DBL_MAX) {
jsondec_err(d, "Number out of range");
}
return val;
}
}
/* JSON string ****************************************************************/
static char jsondec_escape(jsondec* d) {
switch (*d->ptr++) {
case '"':
return '\"';
case '\\':
return '\\';
case '/':
return '/';
case 'b':
return '\b';
case 'f':
return '\f';
case 'n':
return '\n';
case 'r':
return '\r';
case 't':
return '\t';
default:
jsondec_err(d, "Invalid escape char");
}
}
static uint32_t jsondec_codepoint(jsondec* d) {
uint32_t cp = 0;
const char* end;
if (d->end - d->ptr < 4) {
jsondec_err(d, "EOF inside string");
}
end = d->ptr + 4;
while (d->ptr < end) {
char ch = *d->ptr++;
if (ch >= '0' && ch <= '9') {
ch -= '0';
} else if (ch >= 'a' && ch <= 'f') {
ch = ch - 'a' + 10;
} else if (ch >= 'A' && ch <= 'F') {
ch = ch - 'A' + 10;
} else {
jsondec_err(d, "Invalid hex digit");
}
cp = (cp << 4) | ch;
}
return cp;
}
/* Parses a \uXXXX unicode escape (possibly a surrogate pair). */
static size_t jsondec_unicode(jsondec* d, char* out) {
uint32_t cp = jsondec_codepoint(d);
if (upb_Unicode_IsHigh(cp)) {
/* Surrogate pair: two 16-bit codepoints become a 32-bit codepoint. */
jsondec_parselit(d, "\\u");
uint32_t low = jsondec_codepoint(d);
if (!upb_Unicode_IsLow(low)) jsondec_err(d, "Invalid low surrogate");
cp = upb_Unicode_FromPair(cp, low);
} else if (upb_Unicode_IsLow(cp)) {
jsondec_err(d, "Unpaired low surrogate");
}
/* Write to UTF-8 */
int bytes = upb_Unicode_ToUTF8(cp, out);
if (bytes == 0) jsondec_err(d, "Invalid codepoint");
return bytes;
}
static void jsondec_resize(jsondec* d, char** buf, char** end, char** buf_end) {
size_t oldsize = *buf_end - *buf;
size_t len = *end - *buf;
size_t size = UPB_MAX(8, 2 * oldsize);
*buf = upb_Arena_Realloc(d->arena, *buf, len, size);
if (!*buf) jsondec_err(d, "Out of memory");
*end = *buf + len;
*buf_end = *buf + size;
}
static upb_StringView jsondec_string(jsondec* d) {
char* buf = NULL;
char* end = NULL;
char* buf_end = NULL;
jsondec_skipws(d);
if (*d->ptr++ != '"') {
jsondec_err(d, "Expected string");
}
while (d->ptr < d->end) {
char ch = *d->ptr++;
if (end == buf_end) {
jsondec_resize(d, &buf, &end, &buf_end);
}
switch (ch) {
case '"': {
upb_StringView ret;
ret.data = buf;
ret.size = end - buf;
*end = '\0'; /* Needed for possible strtod(). */
return ret;
}
case '\\':
if (d->ptr == d->end) goto eof;
if (*d->ptr == 'u') {
d->ptr++;
if (buf_end - end < 4) {
/* Allow space for maximum-sized codepoint (4 bytes). */
jsondec_resize(d, &buf, &end, &buf_end);
}
end += jsondec_unicode(d, end);
} else {
*end++ = jsondec_escape(d);
}
break;
default:
if ((unsigned char)ch < 0x20) {
jsondec_err(d, "Invalid char in JSON string");
}
*end++ = ch;
break;
}
}
eof:
jsondec_err(d, "EOF inside string");
}
static void jsondec_skipval(jsondec* d) {
switch (jsondec_peek(d)) {
case JD_OBJECT:
jsondec_objstart(d);
while (jsondec_objnext(d)) {
jsondec_string(d);
jsondec_entrysep(d);
jsondec_skipval(d);
}
jsondec_objend(d);
break;
case JD_ARRAY:
jsondec_arrstart(d);
while (jsondec_arrnext(d)) {
jsondec_skipval(d);
}
jsondec_arrend(d);
break;
case JD_TRUE:
jsondec_true(d);
break;
case JD_FALSE:
jsondec_false(d);
break;
case JD_NULL:
jsondec_null(d);
break;
case JD_STRING:
jsondec_string(d);
break;
case JD_NUMBER:
jsondec_number(d);
break;
}
}
/* Base64 decoding for bytes fields. ******************************************/
static unsigned int jsondec_base64_tablelookup(const char ch) {
/* Table includes the normal base64 chars plus the URL-safe variant. */
const signed char table[256] = {
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, 62 /*+*/, -1, 62 /*-*/, -1, 63 /*/ */, 52 /*0*/,
53 /*1*/, 54 /*2*/, 55 /*3*/, 56 /*4*/, 57 /*5*/, 58 /*6*/, 59 /*7*/,
60 /*8*/, 61 /*9*/, -1, -1, -1, -1, -1,
-1, -1, 0 /*A*/, 1 /*B*/, 2 /*C*/, 3 /*D*/, 4 /*E*/,
5 /*F*/, 6 /*G*/, 07 /*H*/, 8 /*I*/, 9 /*J*/, 10 /*K*/, 11 /*L*/,
12 /*M*/, 13 /*N*/, 14 /*O*/, 15 /*P*/, 16 /*Q*/, 17 /*R*/, 18 /*S*/,
19 /*T*/, 20 /*U*/, 21 /*V*/, 22 /*W*/, 23 /*X*/, 24 /*Y*/, 25 /*Z*/,
-1, -1, -1, -1, 63 /*_*/, -1, 26 /*a*/,
27 /*b*/, 28 /*c*/, 29 /*d*/, 30 /*e*/, 31 /*f*/, 32 /*g*/, 33 /*h*/,
34 /*i*/, 35 /*j*/, 36 /*k*/, 37 /*l*/, 38 /*m*/, 39 /*n*/, 40 /*o*/,
41 /*p*/, 42 /*q*/, 43 /*r*/, 44 /*s*/, 45 /*t*/, 46 /*u*/, 47 /*v*/,
48 /*w*/, 49 /*x*/, 50 /*y*/, 51 /*z*/, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1};
/* Sign-extend return value so high bit will be set on any unexpected char. */
return table[(unsigned)ch];
}
static char* jsondec_partialbase64(jsondec* d, const char* ptr, const char* end,
char* out) {
int32_t val = -1;
switch (end - ptr) {
case 2:
val = jsondec_base64_tablelookup(ptr[0]) << 18 |
jsondec_base64_tablelookup(ptr[1]) << 12;
out[0] = val >> 16;
out += 1;
break;
case 3:
val = jsondec_base64_tablelookup(ptr[0]) << 18 |
jsondec_base64_tablelookup(ptr[1]) << 12 |
jsondec_base64_tablelookup(ptr[2]) << 6;
out[0] = val >> 16;
out[1] = (val >> 8) & 0xff;
out += 2;
break;
}
if (val < 0) {
jsondec_err(d, "Corrupt base64");
}
return out;
}
static size_t jsondec_base64(jsondec* d, upb_StringView str) {
/* We decode in place. This is safe because this is a new buffer (not
* aliasing the input) and because base64 decoding shrinks 4 bytes into 3. */
char* out = (char*)str.data;
const char* ptr = str.data;
const char* end = ptr + str.size;
const char* end4 = ptr + (str.size & -4); /* Round down to multiple of 4. */
for (; ptr < end4; ptr += 4, out += 3) {
int val = jsondec_base64_tablelookup(ptr[0]) << 18 |
jsondec_base64_tablelookup(ptr[1]) << 12 |
jsondec_base64_tablelookup(ptr[2]) << 6 |
jsondec_base64_tablelookup(ptr[3]) << 0;
if (val < 0) {
/* Junk chars or padding. Remove trailing padding, if any. */
if (end - ptr == 4 && ptr[3] == '=') {
if (ptr[2] == '=') {
end -= 2;
} else {
end -= 1;
}
}
break;
}
out[0] = val >> 16;
out[1] = (val >> 8) & 0xff;
out[2] = val & 0xff;
}
if (ptr < end) {
/* Process remaining chars. We do not require padding. */
out = jsondec_partialbase64(d, ptr, end, out);
}
return out - str.data;
}
/* Low-level integer parsing **************************************************/
static const char* jsondec_buftouint64(jsondec* d, const char* ptr,
const char* end, uint64_t* val) {
const char* out = upb_BufToUint64(ptr, end, val);
if (!out) jsondec_err(d, "Integer overflow");
return out;
}
static const char* jsondec_buftoint64(jsondec* d, const char* ptr,
const char* end, int64_t* val,
bool* is_neg) {
const char* out = upb_BufToInt64(ptr, end, val, is_neg);
if (!out) jsondec_err(d, "Integer overflow");
return out;
}
static uint64_t jsondec_strtouint64(jsondec* d, upb_StringView str) {
const char* end = str.data + str.size;
uint64_t ret;
if (jsondec_buftouint64(d, str.data, end, &ret) != end) {
jsondec_err(d, "Non-number characters in quoted integer");
}
return ret;
}
static int64_t jsondec_strtoint64(jsondec* d, upb_StringView str) {
const char* end = str.data + str.size;
int64_t ret;
if (jsondec_buftoint64(d, str.data, end, &ret, NULL) != end) {
jsondec_err(d, "Non-number characters in quoted integer");
}
return ret;
}
static void jsondec_checkempty(jsondec* d, upb_StringView str,
const upb_FieldDef* f) {
if (str.size != 0) return;
d->result = kUpb_JsonDecodeResult_OkWithEmptyStringNumerics;
upb_Status_SetErrorFormat(d->status,
"Empty string is not a valid number (field: %s). "
"This will be an error in a future version.",
upb_FieldDef_FullName(f));
}
/* Primitive value types ******************************************************/
/* Parse INT32 or INT64 value. */
static upb_MessageValue jsondec_int(jsondec* d, const upb_FieldDef* f) {
upb_MessageValue val;
switch (jsondec_peek(d)) {
case JD_NUMBER: {
double dbl = jsondec_number(d);
if (dbl > 9223372036854774784.0 || dbl < -9223372036854775808.0) {
jsondec_err(d, "JSON number is out of range.");
}
val.int64_val = dbl; /* must be guarded, overflow here is UB */
if (val.int64_val != dbl) {
jsondec_errf(d, "JSON number was not integral (%f != %" PRId64 ")", dbl,
val.int64_val);
}
break;
}
case JD_STRING: {
upb_StringView str = jsondec_string(d);
jsondec_checkempty(d, str, f);
val.int64_val = jsondec_strtoint64(d, str);
break;
}
default:
jsondec_err(d, "Expected number or string");
}
if (upb_FieldDef_CType(f) == kUpb_CType_Int32 ||
upb_FieldDef_CType(f) == kUpb_CType_Enum) {
if (val.int64_val > INT32_MAX || val.int64_val < INT32_MIN) {
jsondec_err(d, "Integer out of range.");
}
val.int32_val = (int32_t)val.int64_val;
}
return val;
}
/* Parse UINT32 or UINT64 value. */
static upb_MessageValue jsondec_uint(jsondec* d, const upb_FieldDef* f) {
upb_MessageValue val;
switch (jsondec_peek(d)) {
case JD_NUMBER: {
double dbl = jsondec_number(d);
if (dbl > 18446744073709549568.0 || dbl < 0) {
jsondec_err(d, "JSON number is out of range.");
}
val.uint64_val = dbl; /* must be guarded, overflow here is UB */
if (val.uint64_val != dbl) {
jsondec_errf(d, "JSON number was not integral (%f != %" PRIu64 ")", dbl,
val.uint64_val);
}
break;
}
case JD_STRING: {
upb_StringView str = jsondec_string(d);
jsondec_checkempty(d, str, f);
val.uint64_val = jsondec_strtouint64(d, str);
break;
}
default:
jsondec_err(d, "Expected number or string");
}
if (upb_FieldDef_CType(f) == kUpb_CType_UInt32) {
if (val.uint64_val > UINT32_MAX) {
jsondec_err(d, "Integer out of range.");
}
val.uint32_val = (uint32_t)val.uint64_val;
}
return val;
}
/* Parse DOUBLE or FLOAT value. */
static upb_MessageValue jsondec_double(jsondec* d, const upb_FieldDef* f) {
upb_StringView str;
upb_MessageValue val;
switch (jsondec_peek(d)) {
case JD_NUMBER:
val.double_val = jsondec_number(d);
break;
case JD_STRING:
str = jsondec_string(d);
if (str.size == 0) {
jsondec_checkempty(d, str, f);
val.double_val = 0.0;
} else if (jsondec_streql(str, "NaN")) {
val.double_val = NAN;
} else if (jsondec_streql(str, "Infinity")) {
val.double_val = INFINITY;
} else if (jsondec_streql(str, "-Infinity")) {
val.double_val = -INFINITY;
} else {
char* end;
val.double_val = strtod(str.data, &end);
if (end != str.data + str.size) {
d->result = kUpb_JsonDecodeResult_OkWithEmptyStringNumerics;
upb_Status_SetErrorFormat(
d->status,
"Non-number characters in quoted number (field: %s). "
"This will be an error in a future version.",
upb_FieldDef_FullName(f));
}
}
break;
default:
jsondec_err(d, "Expected number or string");
}
if (upb_FieldDef_CType(f) == kUpb_CType_Float) {
float f = val.double_val;
if (val.double_val != INFINITY && val.double_val != -INFINITY) {
if (f == INFINITY || f == -INFINITY) jsondec_err(d, "Float out of range");
}
val.float_val = f;
}
return val;
}
/* Parse STRING or BYTES value. */
static upb_MessageValue jsondec_strfield(jsondec* d, const upb_FieldDef* f) {
upb_MessageValue val;
val.str_val = jsondec_string(d);
if (upb_FieldDef_CType(f) == kUpb_CType_Bytes) {
val.str_val.size = jsondec_base64(d, val.str_val);
}
return val;
}
static upb_JsonMessageValue jsondec_enum(jsondec* d, const upb_FieldDef* f) {
switch (jsondec_peek(d)) {
case JD_STRING: {
upb_StringView str = jsondec_string(d);
const upb_EnumDef* e = upb_FieldDef_EnumSubDef(f);
const upb_EnumValueDef* ev =
upb_EnumDef_FindValueByNameWithSize(e, str.data, str.size);
upb_JsonMessageValue val = {.ignore = false};
if (ev) {
val.value.int32_val = upb_EnumValueDef_Number(ev);
} else {
if (d->options & upb_JsonDecode_IgnoreUnknown) {
val.ignore = true;
} else {
jsondec_errf(d, "Unknown enumerator: '" UPB_STRINGVIEW_FORMAT "'",
UPB_STRINGVIEW_ARGS(str));
}
}
return val;
}
case JD_NULL: {
if (jsondec_isnullvalue(f)) {
upb_JsonMessageValue val = {.ignore = false};
jsondec_null(d);
val.value.int32_val = 0;
return val;
}
}
/* Fallthrough. */
default:
return (upb_JsonMessageValue){.value = jsondec_int(d, f),
.ignore = false};
}
}
static upb_MessageValue jsondec_bool(jsondec* d, const upb_FieldDef* f) {
bool is_map_key = upb_FieldDef_Number(f) == 1 &&
upb_MessageDef_IsMapEntry(upb_FieldDef_ContainingType(f));
upb_MessageValue val;
if (is_map_key) {
upb_StringView str = jsondec_string(d);
if (jsondec_streql(str, "true")) {
val.bool_val = true;
} else if (jsondec_streql(str, "false")) {
val.bool_val = false;
} else {
jsondec_err(d, "Invalid boolean map key");
}
} else {
switch (jsondec_peek(d)) {
case JD_TRUE:
val.bool_val = true;
jsondec_true(d);
break;
case JD_FALSE:
val.bool_val = false;
jsondec_false(d);
break;
default:
jsondec_err(d, "Expected true or false");
}
}
return val;
}
/* Composite types (array/message/map) ****************************************/
static void jsondec_array(jsondec* d, upb_Message* msg, const upb_FieldDef* f) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_Array* arr = upb_Message_Mutable(msg, f, d->arena).array;
jsondec_arrstart(d);
while (jsondec_arrnext(d)) {
upb_JsonMessageValue elem = jsondec_value(d, f);
if (!elem.ignore) {
upb_Array_Append(arr, elem.value, d->arena);
}
}
jsondec_arrend(d);
}
static void jsondec_map(jsondec* d, upb_Message* msg, const upb_FieldDef* f) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_Map* map = upb_Message_Mutable(msg, f, d->arena).map;
const upb_MessageDef* entry = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_FindFieldByNumber(entry, 1);
const upb_FieldDef* val_f = upb_MessageDef_FindFieldByNumber(entry, 2);
jsondec_objstart(d);
while (jsondec_objnext(d)) {
upb_JsonMessageValue key, val;
key = jsondec_value(d, key_f);
UPB_ASSUME(!key.ignore); // Map key cannot be enum.
jsondec_entrysep(d);
val = jsondec_value(d, val_f);
if (!val.ignore) {
upb_Map_Set(map, key.value, val.value, d->arena);
}
}
jsondec_objend(d);
}
static void jsondec_tomsg(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
if (upb_MessageDef_WellKnownType(m) == kUpb_WellKnown_Unspecified) {
jsondec_object(d, msg, m);
} else {
jsondec_wellknown(d, msg, m);
}
}
static upb_MessageValue jsondec_msg(jsondec* d, const upb_FieldDef* f) {
const upb_MessageDef* m = upb_FieldDef_MessageSubDef(f);
const upb_MiniTable* layout = upb_MessageDef_MiniTable(m);
upb_Message* msg = upb_Message_New(layout, d->arena);
upb_MessageValue val;
jsondec_tomsg(d, msg, m);
val.msg_val = msg;
return val;
}
static void jsondec_field(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_StringView name;
const upb_FieldDef* f;
const upb_FieldDef* preserved;
name = jsondec_string(d);
jsondec_entrysep(d);
if (name.size >= 2 && name.data[0] == '[' &&
name.data[name.size - 1] == ']') {
f = upb_DefPool_FindExtensionByNameWithSize(d->symtab, name.data + 1,
name.size - 2);
if (f && upb_FieldDef_ContainingType(f) != m) {
jsondec_errf(
d, "Extension %s extends message %s, but was seen in message %s",
upb_FieldDef_FullName(f),
upb_MessageDef_FullName(upb_FieldDef_ContainingType(f)),
upb_MessageDef_FullName(m));
}
} else {
f = upb_MessageDef_FindByJsonNameWithSize(m, name.data, name.size);
}
if (!f) {
if ((d->options & upb_JsonDecode_IgnoreUnknown) == 0) {
jsondec_errf(d, "No such field: " UPB_STRINGVIEW_FORMAT,
UPB_STRINGVIEW_ARGS(name));
}
jsondec_skipval(d);
return;
}
if (jsondec_peek(d) == JD_NULL && !jsondec_isvalue(f)) {
/* JSON "null" indicates a default value, so no need to set anything. */
jsondec_null(d);
return;
}
if (upb_FieldDef_RealContainingOneof(f) &&
upb_Message_WhichOneofByDef(msg, upb_FieldDef_ContainingOneof(f))) {
jsondec_err(d, "More than one field for this oneof.");
}
preserved = d->debug_field;
d->debug_field = f;
if (upb_FieldDef_IsMap(f)) {
jsondec_map(d, msg, f);
} else if (upb_FieldDef_IsRepeated(f)) {
jsondec_array(d, msg, f);
} else if (upb_FieldDef_IsSubMessage(f)) {
upb_Message* submsg = upb_Message_Mutable(msg, f, d->arena).msg;
const upb_MessageDef* subm = upb_FieldDef_MessageSubDef(f);
jsondec_tomsg(d, submsg, subm);
} else {
upb_JsonMessageValue val = jsondec_value(d, f);
if (!val.ignore) {
upb_Message_SetFieldByDef(msg, f, val.value, d->arena);
}
}
d->debug_field = preserved;
}
static void jsondec_object(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
jsondec_objstart(d);
while (jsondec_objnext(d)) {
jsondec_field(d, msg, m);
}
jsondec_objend(d);
}
static upb_MessageValue jsondec_nonenum(jsondec* d, const upb_FieldDef* f) {
switch (upb_FieldDef_CType(f)) {
case kUpb_CType_Bool:
return jsondec_bool(d, f);
case kUpb_CType_Float:
case kUpb_CType_Double:
return jsondec_double(d, f);
case kUpb_CType_UInt32:
case kUpb_CType_UInt64:
return jsondec_uint(d, f);
case kUpb_CType_Int32:
case kUpb_CType_Int64:
return jsondec_int(d, f);
case kUpb_CType_String:
case kUpb_CType_Bytes:
return jsondec_strfield(d, f);
case kUpb_CType_Message:
return jsondec_msg(d, f);
case kUpb_CType_Enum:
default:
UPB_UNREACHABLE();
}
}
static upb_JsonMessageValue jsondec_value(jsondec* d, const upb_FieldDef* f) {
if (upb_FieldDef_CType(f) == kUpb_CType_Enum) {
return jsondec_enum(d, f);
} else {
return (upb_JsonMessageValue){.value = jsondec_nonenum(d, f),
.ignore = false};
}
}
/* Well-known types ***********************************************************/
static int jsondec_tsdigits(jsondec* d, const char** ptr, size_t digits,
const char* after) {
uint64_t val;
const char* p = *ptr;
const char* end = p + digits;
size_t after_len = after ? strlen(after) : 0;
UPB_ASSERT(digits <= 9); /* int can't overflow. */
if (jsondec_buftouint64(d, p, end, &val) != end ||
(after_len && memcmp(end, after, after_len) != 0)) {
jsondec_err(d, "Malformed timestamp");
}
UPB_ASSERT(val < INT_MAX);
*ptr = end + after_len;
return (int)val;
}
static int jsondec_nanos(jsondec* d, const char** ptr, const char* end) {
uint64_t nanos = 0;
const char* p = *ptr;
if (p != end && *p == '.') {
const char* nano_end = jsondec_buftouint64(d, p + 1, end, &nanos);
int digits = (int)(nano_end - p - 1);
int exp_lg10 = 9 - digits;
if (digits > 9) {
jsondec_err(d, "Too many digits for partial seconds");
}
while (exp_lg10--) nanos *= 10;
*ptr = nano_end;
}
UPB_ASSERT(nanos < INT_MAX);
return (int)nanos;
}
/* jsondec_epochdays(1970, 1, 1) == 1970-01-01 == 0. */
int jsondec_epochdays(int y, int m, int d) {
const uint32_t year_base = 4800; /* Before min year, multiple of 400. */
const uint32_t m_adj = m - 3; /* March-based month. */
const uint32_t carry = m_adj > (uint32_t)m ? 1 : 0;
const uint32_t adjust = carry ? 12 : 0;
const uint32_t y_adj = y + year_base - carry;
const uint32_t month_days = ((m_adj + adjust) * 62719 + 769) / 2048;
const uint32_t leap_days = y_adj / 4 - y_adj / 100 + y_adj / 400;
return y_adj * 365 + leap_days + month_days + (d - 1) - 2472632;
}
static int64_t jsondec_unixtime(int y, int m, int d, int h, int min, int s) {
return (int64_t)jsondec_epochdays(y, m, d) * 86400 + h * 3600 + min * 60 + s;
}
static void jsondec_timestamp(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_MessageValue seconds;
upb_MessageValue nanos;
upb_StringView str = jsondec_string(d);
const char* ptr = str.data;
const char* end = ptr + str.size;
if (str.size < 20) goto malformed;
{
/* 1972-01-01T01:00:00 */
int year = jsondec_tsdigits(d, &ptr, 4, "-");
int mon = jsondec_tsdigits(d, &ptr, 2, "-");
int day = jsondec_tsdigits(d, &ptr, 2, "T");
int hour = jsondec_tsdigits(d, &ptr, 2, ":");
int min = jsondec_tsdigits(d, &ptr, 2, ":");
int sec = jsondec_tsdigits(d, &ptr, 2, NULL);
seconds.int64_val = jsondec_unixtime(year, mon, day, hour, min, sec);
}
nanos.int32_val = jsondec_nanos(d, &ptr, end);
{
/* [+-]08:00 or Z */
int ofs_hour = 0;
int ofs_min = 0;
bool neg = false;
if (ptr == end) goto malformed;
switch (*ptr++) {
case '-':
neg = true;
/* fallthrough */
case '+':
if ((end - ptr) != 5) goto malformed;
ofs_hour = jsondec_tsdigits(d, &ptr, 2, ":");
ofs_min = jsondec_tsdigits(d, &ptr, 2, NULL);
ofs_min = ((ofs_hour * 60) + ofs_min) * 60;
seconds.int64_val += (neg ? ofs_min : -ofs_min);
break;
case 'Z':
if (ptr != end) goto malformed;
break;
default:
goto malformed;
}
}
if (seconds.int64_val < -62135596800) {
jsondec_err(d, "Timestamp out of range");
}
upb_Message_SetFieldByDef(msg, upb_MessageDef_FindFieldByNumber(m, 1),
seconds, d->arena);
upb_Message_SetFieldByDef(msg, upb_MessageDef_FindFieldByNumber(m, 2), nanos,
d->arena);
return;
malformed:
jsondec_err(d, "Malformed timestamp");
}
static void jsondec_duration(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_MessageValue seconds;
upb_MessageValue nanos;
upb_StringView str = jsondec_string(d);
const char* ptr = str.data;
const char* end = ptr + str.size;
const int64_t max = (uint64_t)3652500 * 86400;
bool neg = false;
/* "3.000000001s", "3s", etc. */
ptr = jsondec_buftoint64(d, ptr, end, &seconds.int64_val, &neg);
nanos.int32_val = jsondec_nanos(d, &ptr, end);
if (end - ptr != 1 || *ptr != 's') {
jsondec_err(d, "Malformed duration");
}
if (seconds.int64_val < -max || seconds.int64_val > max) {
jsondec_err(d, "Duration out of range");
}
if (neg) {
nanos.int32_val = -nanos.int32_val;
}
upb_Message_SetFieldByDef(msg, upb_MessageDef_FindFieldByNumber(m, 1),
seconds, d->arena);
upb_Message_SetFieldByDef(msg, upb_MessageDef_FindFieldByNumber(m, 2), nanos,
d->arena);
}
static void jsondec_listvalue(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
const upb_FieldDef* values_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_MessageDef* value_m = upb_FieldDef_MessageSubDef(values_f);
const upb_MiniTable* value_layout = upb_MessageDef_MiniTable(value_m);
upb_Array* values = upb_Message_Mutable(msg, values_f, d->arena).array;
jsondec_arrstart(d);
while (jsondec_arrnext(d)) {
upb_Message* value_msg = upb_Message_New(value_layout, d->arena);
upb_MessageValue value;
value.msg_val = value_msg;
upb_Array_Append(values, value, d->arena);
jsondec_wellknownvalue(d, value_msg, value_m);
}
jsondec_arrend(d);
}
static void jsondec_struct(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
const upb_FieldDef* fields_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(fields_f);
const upb_FieldDef* value_f = upb_MessageDef_FindFieldByNumber(entry_m, 2);
const upb_MessageDef* value_m = upb_FieldDef_MessageSubDef(value_f);
const upb_MiniTable* value_layout = upb_MessageDef_MiniTable(value_m);
upb_Map* fields = upb_Message_Mutable(msg, fields_f, d->arena).map;
jsondec_objstart(d);
while (jsondec_objnext(d)) {
upb_MessageValue key, value;
upb_Message* value_msg = upb_Message_New(value_layout, d->arena);
key.str_val = jsondec_string(d);
value.msg_val = value_msg;
upb_Map_Set(fields, key, value, d->arena);
jsondec_entrysep(d);
jsondec_wellknownvalue(d, value_msg, value_m);
}
jsondec_objend(d);
}
static void jsondec_wellknownvalue(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_MessageValue val;
const upb_FieldDef* f;
upb_Message* submsg;
switch (jsondec_peek(d)) {
case JD_NUMBER:
/* double number_value = 2; */
f = upb_MessageDef_FindFieldByNumber(m, 2);
val.double_val = jsondec_number(d);
break;
case JD_STRING:
/* string string_value = 3; */
f = upb_MessageDef_FindFieldByNumber(m, 3);
val.str_val = jsondec_string(d);
break;
case JD_FALSE:
/* bool bool_value = 4; */
f = upb_MessageDef_FindFieldByNumber(m, 4);
val.bool_val = false;
jsondec_false(d);
break;
case JD_TRUE:
/* bool bool_value = 4; */
f = upb_MessageDef_FindFieldByNumber(m, 4);
val.bool_val = true;
jsondec_true(d);
break;
case JD_NULL:
/* NullValue null_value = 1; */
f = upb_MessageDef_FindFieldByNumber(m, 1);
val.int32_val = 0;
jsondec_null(d);
break;
/* Note: these cases return, because upb_Message_Mutable() is enough. */
case JD_OBJECT:
/* Struct struct_value = 5; */
f = upb_MessageDef_FindFieldByNumber(m, 5);
submsg = upb_Message_Mutable(msg, f, d->arena).msg;
jsondec_struct(d, submsg, upb_FieldDef_MessageSubDef(f));
return;
case JD_ARRAY:
/* ListValue list_value = 6; */
f = upb_MessageDef_FindFieldByNumber(m, 6);
submsg = upb_Message_Mutable(msg, f, d->arena).msg;
jsondec_listvalue(d, submsg, upb_FieldDef_MessageSubDef(f));
return;
default:
UPB_UNREACHABLE();
}
upb_Message_SetFieldByDef(msg, f, val, d->arena);
}
static upb_StringView jsondec_mask(jsondec* d, const char* buf,
const char* end) {
/* FieldMask fields grow due to inserted '_' characters, so we can't do the
* transform in place. */
const char* ptr = buf;
upb_StringView ret;
char* out;
ret.size = end - ptr;
while (ptr < end) {
ret.size += (*ptr >= 'A' && *ptr <= 'Z');
ptr++;
}
out = upb_Arena_Malloc(d->arena, ret.size);
ptr = buf;
ret.data = out;
while (ptr < end) {
char ch = *ptr++;
if (ch >= 'A' && ch <= 'Z') {
*out++ = '_';
*out++ = ch + 32;
} else if (ch == '_') {
jsondec_err(d, "field mask may not contain '_'");
} else {
*out++ = ch;
}
}
return ret;
}
static void jsondec_fieldmask(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
/* repeated string paths = 1; */
const upb_FieldDef* paths_f = upb_MessageDef_FindFieldByNumber(m, 1);
upb_Array* arr = upb_Message_Mutable(msg, paths_f, d->arena).array;
upb_StringView str = jsondec_string(d);
const char* ptr = str.data;
const char* end = ptr + str.size;
upb_MessageValue val;
while (ptr < end) {
const char* elem_end = memchr(ptr, ',', end - ptr);
if (elem_end) {
val.str_val = jsondec_mask(d, ptr, elem_end);
ptr = elem_end + 1;
} else {
val.str_val = jsondec_mask(d, ptr, end);
ptr = end;
}
upb_Array_Append(arr, val, d->arena);
}
}
static void jsondec_anyfield(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
if (upb_MessageDef_WellKnownType(m) == kUpb_WellKnown_Unspecified) {
/* For regular types: {"@type": "[user type]", "f1": <V1>, "f2": <V2>}
* where f1, f2, etc. are the normal fields of this type. */
jsondec_field(d, msg, m);
} else {
/* For well-known types: {"@type": "[well-known type]", "value": <X>}
* where <X> is whatever encoding the WKT normally uses. */
upb_StringView str = jsondec_string(d);
jsondec_entrysep(d);
if (!jsondec_streql(str, "value")) {
jsondec_err(d, "Key for well-known type must be 'value'");
}
jsondec_wellknown(d, msg, m);
}
}
static const upb_MessageDef* jsondec_typeurl(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
const upb_FieldDef* type_url_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_MessageDef* type_m;
upb_StringView type_url = jsondec_string(d);
const char* end = type_url.data + type_url.size;
const char* ptr = end;
upb_MessageValue val;
val.str_val = type_url;
upb_Message_SetFieldByDef(msg, type_url_f, val, d->arena);
/* Find message name after the last '/' */
while (ptr > type_url.data && *--ptr != '/') {
}
if (ptr == type_url.data || ptr == end) {
jsondec_err(d, "Type url must have at least one '/' and non-empty host");
}
ptr++;
type_m = upb_DefPool_FindMessageByNameWithSize(d->symtab, ptr, end - ptr);
if (!type_m) {
jsondec_err(d, "Type was not found");
}
return type_m;
}
static void jsondec_any(jsondec* d, upb_Message* msg, const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
/* string type_url = 1;
* bytes value = 2; */
const upb_FieldDef* value_f = upb_MessageDef_FindFieldByNumber(m, 2);
upb_Message* any_msg;
const upb_MessageDef* any_m = NULL;
const char* pre_type_data = NULL;
const char* pre_type_end = NULL;
upb_MessageValue encoded;
jsondec_objstart(d);
/* Scan looking for "@type", which is not necessarily first. */
while (!any_m && jsondec_objnext(d)) {
const char* start = d->ptr;
upb_StringView name = jsondec_string(d);
jsondec_entrysep(d);
if (jsondec_streql(name, "@type")) {
any_m = jsondec_typeurl(d, msg, m);
if (pre_type_data) {
pre_type_end = start;
while (*pre_type_end != ',') pre_type_end--;
}
} else {
if (!pre_type_data) pre_type_data = start;
jsondec_skipval(d);
}
}
if (!any_m) {
jsondec_err(d, "Any object didn't contain a '@type' field");
}
const upb_MiniTable* any_layout = upb_MessageDef_MiniTable(any_m);
any_msg = upb_Message_New(any_layout, d->arena);
if (pre_type_data) {
size_t len = pre_type_end - pre_type_data + 1;
char* tmp = upb_Arena_Malloc(d->arena, len);
const char* saved_ptr = d->ptr;
const char* saved_end = d->end;
memcpy(tmp, pre_type_data, len - 1);
tmp[len - 1] = '}';
d->ptr = tmp;
d->end = tmp + len;
d->is_first = true;
while (jsondec_objnext(d)) {
jsondec_anyfield(d, any_msg, any_m);
}
d->ptr = saved_ptr;
d->end = saved_end;
}
while (jsondec_objnext(d)) {
jsondec_anyfield(d, any_msg, any_m);
}
jsondec_objend(d);
upb_EncodeStatus status =
upb_Encode(any_msg, upb_MessageDef_MiniTable(any_m), 0, d->arena,
(char**)&encoded.str_val.data, &encoded.str_val.size);
// TODO: We should fail gracefully here on a bad return status.
UPB_ASSERT(status == kUpb_EncodeStatus_Ok);
upb_Message_SetFieldByDef(msg, value_f, encoded, d->arena);
}
static void jsondec_wrapper(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
const upb_FieldDef* value_f = upb_MessageDef_FindFieldByNumber(m, 1);
upb_JsonMessageValue val = jsondec_value(d, value_f);
UPB_ASSUME(val.ignore == false); // Wrapper cannot be an enum.
upb_Message_SetFieldByDef(msg, value_f, val.value, d->arena);
}
static void jsondec_wellknown(jsondec* d, upb_Message* msg,
const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
switch (upb_MessageDef_WellKnownType(m)) {
case kUpb_WellKnown_Any:
jsondec_any(d, msg, m);
break;
case kUpb_WellKnown_FieldMask:
jsondec_fieldmask(d, msg, m);
break;
case kUpb_WellKnown_Duration:
jsondec_duration(d, msg, m);
break;
case kUpb_WellKnown_Timestamp:
jsondec_timestamp(d, msg, m);
break;
case kUpb_WellKnown_Value:
jsondec_wellknownvalue(d, msg, m);
break;
case kUpb_WellKnown_ListValue:
jsondec_listvalue(d, msg, m);
break;
case kUpb_WellKnown_Struct:
jsondec_struct(d, msg, m);
break;
case kUpb_WellKnown_DoubleValue:
case kUpb_WellKnown_FloatValue:
case kUpb_WellKnown_Int64Value:
case kUpb_WellKnown_UInt64Value:
case kUpb_WellKnown_Int32Value:
case kUpb_WellKnown_UInt32Value:
case kUpb_WellKnown_StringValue:
case kUpb_WellKnown_BytesValue:
case kUpb_WellKnown_BoolValue:
jsondec_wrapper(d, msg, m);
break;
default:
UPB_UNREACHABLE();
}
}
static int upb_JsonDecoder_Decode(jsondec* const d, upb_Message* const msg,
const upb_MessageDef* const m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
if (UPB_SETJMP(d->err)) return kUpb_JsonDecodeResult_Error;
jsondec_tomsg(d, msg, m);
// Consume any trailing whitespace before checking if we read the entire
// input.
jsondec_consumews(d);
if (d->ptr == d->end) {
return d->result;
} else {
jsondec_seterrmsg(d, "unexpected trailing characters");
return kUpb_JsonDecodeResult_Error;
}
}
int upb_JsonDecodeDetectingNonconformance(const char* buf, size_t size,
upb_Message* msg,
const upb_MessageDef* m,
const upb_DefPool* symtab,
int options, upb_Arena* arena,
upb_Status* status) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
jsondec d;
if (size == 0) return true;
d.ptr = buf;
d.end = buf + size;
d.arena = arena;
d.symtab = symtab;
d.status = status;
d.options = options;
d.depth = 64;
d.result = kUpb_JsonDecodeResult_Ok;
d.line = 1;
d.line_begin = d.ptr;
d.debug_field = NULL;
d.is_first = false;
return upb_JsonDecoder_Decode(&d, msg, m);
}
#include <ctype.h>
#include <float.h>
#include <inttypes.h>
#include <math.h>
#include <stdarg.h>
#include <string.h>
// Must be last.
typedef struct {
char *buf, *ptr, *end;
size_t overflow;
int indent_depth;
int options;
const upb_DefPool* ext_pool;
jmp_buf err;
upb_Status* status;
upb_Arena* arena;
} jsonenc;
static void jsonenc_msg(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m);
static void jsonenc_scalar(jsonenc* e, upb_MessageValue val,
const upb_FieldDef* f);
static void jsonenc_msgfield(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m);
static void jsonenc_msgfields(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m, bool first);
static void jsonenc_value(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m);
UPB_NORETURN static void jsonenc_err(jsonenc* e, const char* msg) {
upb_Status_SetErrorMessage(e->status, msg);
UPB_LONGJMP(e->err, 1);
}
UPB_PRINTF(2, 3)
UPB_NORETURN static void jsonenc_errf(jsonenc* e, const char* fmt, ...) {
va_list argp;
va_start(argp, fmt);
upb_Status_VSetErrorFormat(e->status, fmt, argp);
va_end(argp);
UPB_LONGJMP(e->err, 1);
}
static upb_Arena* jsonenc_arena(jsonenc* e) {
/* Create lazily, since it's only needed for Any */
if (!e->arena) {
e->arena = upb_Arena_New();
}
return e->arena;
}
static void jsonenc_putbytes(jsonenc* e, const void* data, size_t len) {
size_t have = e->end - e->ptr;
if (UPB_LIKELY(have >= len)) {
memcpy(e->ptr, data, len);
e->ptr += len;
} else {
if (have) {
memcpy(e->ptr, data, have);
e->ptr += have;
}
e->overflow += (len - have);
}
}
static void jsonenc_putstr(jsonenc* e, const char* str) {
jsonenc_putbytes(e, str, strlen(str));
}
UPB_PRINTF(2, 3)
static void jsonenc_printf(jsonenc* e, const char* fmt, ...) {
size_t n;
size_t have = e->end - e->ptr;
va_list args;
va_start(args, fmt);
n = _upb_vsnprintf(e->ptr, have, fmt, args);
va_end(args);
if (UPB_LIKELY(have > n)) {
e->ptr += n;
} else {
e->ptr = UPB_PTRADD(e->ptr, have);
e->overflow += (n - have);
}
}
static void jsonenc_nanos(jsonenc* e, int32_t nanos) {
int digits = 9;
if (nanos == 0) return;
if (nanos < 0 || nanos >= 1000000000) {
jsonenc_err(e, "error formatting timestamp as JSON: invalid nanos");
}
while (nanos % 1000 == 0) {
nanos /= 1000;
digits -= 3;
}
jsonenc_printf(e, ".%.*" PRId32, digits, nanos);
}
static void jsonenc_timestamp(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
const upb_FieldDef* seconds_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_FieldDef* nanos_f = upb_MessageDef_FindFieldByNumber(m, 2);
int64_t seconds = upb_Message_GetFieldByDef(msg, seconds_f).int64_val;
int32_t nanos = upb_Message_GetFieldByDef(msg, nanos_f).int32_val;
int L, N, I, J, K, hour, min, sec;
if (seconds < -62135596800) {
jsonenc_err(e,
"error formatting timestamp as JSON: minimum acceptable value "
"is 0001-01-01T00:00:00Z");
} else if (seconds > 253402300799) {
jsonenc_err(e,
"error formatting timestamp as JSON: maximum acceptable value "
"is 9999-12-31T23:59:59Z");
}
/* Julian Day -> Y/M/D, Algorithm from:
* Fliegel, H. F., and Van Flandern, T. C., "A Machine Algorithm for
* Processing Calendar Dates," Communications of the Association of
* Computing Machines, vol. 11 (1968), p. 657. */
seconds += 62135596800; // Ensure seconds is positive.
L = (int)(seconds / 86400) - 719162 + 68569 + 2440588;
N = 4 * L / 146097;
L = L - (146097 * N + 3) / 4;
I = 4000 * (L + 1) / 1461001;
L = L - 1461 * I / 4 + 31;
J = 80 * L / 2447;
K = L - 2447 * J / 80;
L = J / 11;
J = J + 2 - 12 * L;
I = 100 * (N - 49) + I + L;
sec = seconds % 60;
min = (seconds / 60) % 60;
hour = (seconds / 3600) % 24;
jsonenc_printf(e, "\"%04d-%02d-%02dT%02d:%02d:%02d", I, J, K, hour, min, sec);
jsonenc_nanos(e, nanos);
jsonenc_putstr(e, "Z\"");
}
static void jsonenc_duration(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
const upb_FieldDef* seconds_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_FieldDef* nanos_f = upb_MessageDef_FindFieldByNumber(m, 2);
int64_t seconds = upb_Message_GetFieldByDef(msg, seconds_f).int64_val;
int32_t nanos = upb_Message_GetFieldByDef(msg, nanos_f).int32_val;
bool negative = false;
if (seconds > 315576000000 || seconds < -315576000000 ||
(seconds != 0 && nanos != 0 && (seconds < 0) != (nanos < 0))) {
jsonenc_err(e, "bad duration");
}
if (seconds < 0) {
negative = true;
seconds = -seconds;
}
if (nanos < 0) {
negative = true;
nanos = -nanos;
}
jsonenc_putstr(e, "\"");
if (negative) {
jsonenc_putstr(e, "-");
}
jsonenc_printf(e, "%" PRId64, seconds);
jsonenc_nanos(e, nanos);
jsonenc_putstr(e, "s\"");
}
static void jsonenc_enum(int32_t val, const upb_FieldDef* f, jsonenc* e) {
const upb_EnumDef* e_def = upb_FieldDef_EnumSubDef(f);
if (strcmp(upb_EnumDef_FullName(e_def), "google.protobuf.NullValue") == 0) {
jsonenc_putstr(e, "null");
} else {
const upb_EnumValueDef* ev =
(e->options & upb_JsonEncode_FormatEnumsAsIntegers)
? NULL
: upb_EnumDef_FindValueByNumber(e_def, val);
if (ev) {
jsonenc_printf(e, "\"%s\"", upb_EnumValueDef_Name(ev));
} else {
jsonenc_printf(e, "%" PRId32, val);
}
}
}
static void jsonenc_bytes(jsonenc* e, upb_StringView str) {
/* This is the regular base64, not the "web-safe" version. */
static const char base64[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const unsigned char* ptr = (unsigned char*)str.data;
const unsigned char* end = UPB_PTRADD(ptr, str.size);
char buf[4];
jsonenc_putstr(e, "\"");
while (end - ptr >= 3) {
buf[0] = base64[ptr[0] >> 2];
buf[1] = base64[((ptr[0] & 0x3) << 4) | (ptr[1] >> 4)];
buf[2] = base64[((ptr[1] & 0xf) << 2) | (ptr[2] >> 6)];
buf[3] = base64[ptr[2] & 0x3f];
jsonenc_putbytes(e, buf, 4);
ptr += 3;
}
switch (end - ptr) {
case 2:
buf[0] = base64[ptr[0] >> 2];
buf[1] = base64[((ptr[0] & 0x3) << 4) | (ptr[1] >> 4)];
buf[2] = base64[(ptr[1] & 0xf) << 2];
buf[3] = '=';
jsonenc_putbytes(e, buf, 4);
break;
case 1:
buf[0] = base64[ptr[0] >> 2];
buf[1] = base64[((ptr[0] & 0x3) << 4)];
buf[2] = '=';
buf[3] = '=';
jsonenc_putbytes(e, buf, 4);
break;
}
jsonenc_putstr(e, "\"");
}
static void jsonenc_stringbody(jsonenc* e, upb_StringView str) {
const char* ptr = str.data;
const char* end = UPB_PTRADD(ptr, str.size);
while (ptr < end) {
switch (*ptr) {
case '\n':
jsonenc_putstr(e, "\\n");
break;
case '\r':
jsonenc_putstr(e, "\\r");
break;
case '\t':
jsonenc_putstr(e, "\\t");
break;
case '\"':
jsonenc_putstr(e, "\\\"");
break;
case '\f':
jsonenc_putstr(e, "\\f");
break;
case '\b':
jsonenc_putstr(e, "\\b");
break;
case '\\':
jsonenc_putstr(e, "\\\\");
break;
default:
if ((uint8_t)*ptr < 0x20) {
jsonenc_printf(e, "\\u%04x", (int)(uint8_t)*ptr);
} else {
/* This could be a non-ASCII byte. We rely on the string being valid
* UTF-8. */
jsonenc_putbytes(e, ptr, 1);
}
break;
}
ptr++;
}
}
static void jsonenc_string(jsonenc* e, upb_StringView str) {
jsonenc_putstr(e, "\"");
jsonenc_stringbody(e, str);
jsonenc_putstr(e, "\"");
}
static bool upb_JsonEncode_HandleSpecialDoubles(jsonenc* e, double val) {
if (val == INFINITY) {
jsonenc_putstr(e, "\"Infinity\"");
} else if (val == -INFINITY) {
jsonenc_putstr(e, "\"-Infinity\"");
} else if (val != val) {
jsonenc_putstr(e, "\"NaN\"");
} else {
return false;
}
return true;
}
static void upb_JsonEncode_Double(jsonenc* e, double val) {
if (upb_JsonEncode_HandleSpecialDoubles(e, val)) return;
char buf[32];
_upb_EncodeRoundTripDouble(val, buf, sizeof(buf));
jsonenc_putstr(e, buf);
}
static void upb_JsonEncode_Float(jsonenc* e, float val) {
if (upb_JsonEncode_HandleSpecialDoubles(e, val)) return;
char buf[32];
_upb_EncodeRoundTripFloat(val, buf, sizeof(buf));
jsonenc_putstr(e, buf);
}
static void jsonenc_wrapper(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
const upb_FieldDef* val_f = upb_MessageDef_FindFieldByNumber(m, 1);
upb_MessageValue val = upb_Message_GetFieldByDef(msg, val_f);
jsonenc_scalar(e, val, val_f);
}
static const upb_MessageDef* jsonenc_getanymsg(jsonenc* e,
upb_StringView type_url) {
/* Find last '/', if any. */
const char* end = type_url.data + type_url.size;
const char* ptr = end;
const upb_MessageDef* ret;
if (!e->ext_pool) {
jsonenc_err(e, "Tried to encode Any, but no symtab was provided");
}
if (type_url.size == 0) goto badurl;
while (true) {
if (--ptr == type_url.data) {
/* Type URL must contain at least one '/', with host before. */
goto badurl;
}
if (*ptr == '/') {
ptr++;
break;
}
}
ret = upb_DefPool_FindMessageByNameWithSize(e->ext_pool, ptr, end - ptr);
if (!ret) {
jsonenc_errf(e, "Couldn't find Any type: %.*s", (int)(end - ptr), ptr);
}
return ret;
badurl:
jsonenc_errf(e, "Bad type URL: " UPB_STRINGVIEW_FORMAT,
UPB_STRINGVIEW_ARGS(type_url));
}
static void jsonenc_any(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
const upb_FieldDef* type_url_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_FieldDef* value_f = upb_MessageDef_FindFieldByNumber(m, 2);
upb_StringView type_url = upb_Message_GetFieldByDef(msg, type_url_f).str_val;
upb_StringView value = upb_Message_GetFieldByDef(msg, value_f).str_val;
const upb_MessageDef* any_m = jsonenc_getanymsg(e, type_url);
const upb_MiniTable* any_layout = upb_MessageDef_MiniTable(any_m);
upb_Arena* arena = jsonenc_arena(e);
upb_Message* any = upb_Message_New(any_layout, arena);
if (upb_Decode(value.data, value.size, any, any_layout, NULL, 0, arena) !=
kUpb_DecodeStatus_Ok) {
jsonenc_err(e, "Error decoding message in Any");
}
jsonenc_putstr(e, "{\"@type\":");
jsonenc_string(e, type_url);
if (upb_MessageDef_WellKnownType(any_m) == kUpb_WellKnown_Unspecified) {
/* Regular messages: {"@type": "...","foo": 1, "bar": 2} */
jsonenc_msgfields(e, any, any_m, false);
} else {
/* Well-known type: {"@type": "...","value": <well-known encoding>} */
jsonenc_putstr(e, ",\"value\":");
jsonenc_msgfield(e, any, any_m);
}
jsonenc_putstr(e, "}");
}
static void jsonenc_putsep(jsonenc* e, const char* str, bool* first) {
if (*first) {
*first = false;
} else {
jsonenc_putstr(e, str);
}
}
static void jsonenc_fieldpath(jsonenc* e, upb_StringView path) {
const char* ptr = path.data;
const char* end = ptr + path.size;
while (ptr < end) {
char ch = *ptr;
if (ch >= 'A' && ch <= 'Z') {
jsonenc_err(e, "Field mask element may not have upper-case letter.");
} else if (ch == '_') {
if (ptr == end - 1 || *(ptr + 1) < 'a' || *(ptr + 1) > 'z') {
jsonenc_err(e, "Underscore must be followed by a lowercase letter.");
}
ch = *++ptr - 32;
}
jsonenc_putbytes(e, &ch, 1);
ptr++;
}
}
static void jsonenc_fieldmask(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
const upb_FieldDef* paths_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_Array* paths = upb_Message_GetFieldByDef(msg, paths_f).array_val;
bool first = true;
size_t i, n = 0;
if (paths) n = upb_Array_Size(paths);
jsonenc_putstr(e, "\"");
for (i = 0; i < n; i++) {
jsonenc_putsep(e, ",", &first);
jsonenc_fieldpath(e, upb_Array_Get(paths, i).str_val);
}
jsonenc_putstr(e, "\"");
}
static void jsonenc_struct(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
jsonenc_putstr(e, "{");
const upb_FieldDef* fields_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_Map* fields = upb_Message_GetFieldByDef(msg, fields_f).map_val;
if (fields) {
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(fields_f);
const upb_FieldDef* value_f = upb_MessageDef_FindFieldByNumber(entry_m, 2);
size_t iter = kUpb_Map_Begin;
bool first = true;
upb_MessageValue key, val;
while (upb_Map_Next(fields, &key, &val, &iter)) {
jsonenc_putsep(e, ",", &first);
jsonenc_string(e, key.str_val);
jsonenc_putstr(e, ":");
jsonenc_value(e, val.msg_val, upb_FieldDef_MessageSubDef(value_f));
}
}
jsonenc_putstr(e, "}");
}
static void jsonenc_listvalue(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
const upb_FieldDef* values_f = upb_MessageDef_FindFieldByNumber(m, 1);
const upb_MessageDef* values_m = upb_FieldDef_MessageSubDef(values_f);
const upb_Array* values = upb_Message_GetFieldByDef(msg, values_f).array_val;
size_t i;
bool first = true;
jsonenc_putstr(e, "[");
if (values) {
const size_t size = upb_Array_Size(values);
for (i = 0; i < size; i++) {
upb_MessageValue elem = upb_Array_Get(values, i);
jsonenc_putsep(e, ",", &first);
jsonenc_value(e, elem.msg_val, values_m);
}
}
jsonenc_putstr(e, "]");
}
static void jsonenc_value(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
/* TODO: do we want a reflection method to get oneof case? */
size_t iter = kUpb_Message_Begin;
const upb_FieldDef* f;
upb_MessageValue val;
if (!upb_Message_Next(msg, m, NULL, &f, &val, &iter)) {
jsonenc_err(e, "No value set in Value proto");
}
switch (upb_FieldDef_Number(f)) {
case 1:
jsonenc_putstr(e, "null");
break;
case 2:
if (upb_JsonEncode_HandleSpecialDoubles(e, val.double_val)) {
jsonenc_err(
e,
"google.protobuf.Value cannot encode double values for "
"infinity or nan, because they would be parsed as a string");
}
upb_JsonEncode_Double(e, val.double_val);
break;
case 3:
jsonenc_string(e, val.str_val);
break;
case 4:
jsonenc_putstr(e, val.bool_val ? "true" : "false");
break;
case 5:
jsonenc_struct(e, val.msg_val, upb_FieldDef_MessageSubDef(f));
break;
case 6:
jsonenc_listvalue(e, val.msg_val, upb_FieldDef_MessageSubDef(f));
break;
}
}
static void jsonenc_msgfield(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
switch (upb_MessageDef_WellKnownType(m)) {
case kUpb_WellKnown_Unspecified:
jsonenc_msg(e, msg, m);
break;
case kUpb_WellKnown_Any:
jsonenc_any(e, msg, m);
break;
case kUpb_WellKnown_FieldMask:
jsonenc_fieldmask(e, msg, m);
break;
case kUpb_WellKnown_Duration:
jsonenc_duration(e, msg, m);
break;
case kUpb_WellKnown_Timestamp:
jsonenc_timestamp(e, msg, m);
break;
case kUpb_WellKnown_DoubleValue:
case kUpb_WellKnown_FloatValue:
case kUpb_WellKnown_Int64Value:
case kUpb_WellKnown_UInt64Value:
case kUpb_WellKnown_Int32Value:
case kUpb_WellKnown_UInt32Value:
case kUpb_WellKnown_StringValue:
case kUpb_WellKnown_BytesValue:
case kUpb_WellKnown_BoolValue:
jsonenc_wrapper(e, msg, m);
break;
case kUpb_WellKnown_Value:
jsonenc_value(e, msg, m);
break;
case kUpb_WellKnown_ListValue:
jsonenc_listvalue(e, msg, m);
break;
case kUpb_WellKnown_Struct:
jsonenc_struct(e, msg, m);
break;
}
}
static void jsonenc_scalar(jsonenc* e, upb_MessageValue val,
const upb_FieldDef* f) {
switch (upb_FieldDef_CType(f)) {
case kUpb_CType_Bool:
jsonenc_putstr(e, val.bool_val ? "true" : "false");
break;
case kUpb_CType_Float:
upb_JsonEncode_Float(e, val.float_val);
break;
case kUpb_CType_Double:
upb_JsonEncode_Double(e, val.double_val);
break;
case kUpb_CType_Int32:
jsonenc_printf(e, "%" PRId32, val.int32_val);
break;
case kUpb_CType_UInt32:
jsonenc_printf(e, "%" PRIu32, val.uint32_val);
break;
case kUpb_CType_Int64:
jsonenc_printf(e, "\"%" PRId64 "\"", val.int64_val);
break;
case kUpb_CType_UInt64:
jsonenc_printf(e, "\"%" PRIu64 "\"", val.uint64_val);
break;
case kUpb_CType_String:
jsonenc_string(e, val.str_val);
break;
case kUpb_CType_Bytes:
jsonenc_bytes(e, val.str_val);
break;
case kUpb_CType_Enum:
jsonenc_enum(val.int32_val, f, e);
break;
case kUpb_CType_Message:
jsonenc_msgfield(e, val.msg_val, upb_FieldDef_MessageSubDef(f));
break;
}
}
static void jsonenc_mapkey(jsonenc* e, upb_MessageValue val,
const upb_FieldDef* f) {
jsonenc_putstr(e, "\"");
switch (upb_FieldDef_CType(f)) {
case kUpb_CType_Bool:
jsonenc_putstr(e, val.bool_val ? "true" : "false");
break;
case kUpb_CType_Int32:
jsonenc_printf(e, "%" PRId32, val.int32_val);
break;
case kUpb_CType_UInt32:
jsonenc_printf(e, "%" PRIu32, val.uint32_val);
break;
case kUpb_CType_Int64:
jsonenc_printf(e, "%" PRId64, val.int64_val);
break;
case kUpb_CType_UInt64:
jsonenc_printf(e, "%" PRIu64, val.uint64_val);
break;
case kUpb_CType_String:
jsonenc_stringbody(e, val.str_val);
break;
default:
UPB_UNREACHABLE();
}
jsonenc_putstr(e, "\":");
}
static void jsonenc_array(jsonenc* e, const upb_Array* arr,
const upb_FieldDef* f) {
size_t i;
size_t size = arr ? upb_Array_Size(arr) : 0;
bool first = true;
jsonenc_putstr(e, "[");
for (i = 0; i < size; i++) {
jsonenc_putsep(e, ",", &first);
jsonenc_scalar(e, upb_Array_Get(arr, i), f);
}
jsonenc_putstr(e, "]");
}
static void jsonenc_map(jsonenc* e, const upb_Map* map, const upb_FieldDef* f) {
jsonenc_putstr(e, "{");
const upb_MessageDef* entry = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_FindFieldByNumber(entry, 1);
const upb_FieldDef* val_f = upb_MessageDef_FindFieldByNumber(entry, 2);
if (map) {
size_t iter = kUpb_Map_Begin;
bool first = true;
upb_MessageValue key, val;
while (upb_Map_Next(map, &key, &val, &iter)) {
jsonenc_putsep(e, ",", &first);
jsonenc_mapkey(e, key, key_f);
jsonenc_scalar(e, val, val_f);
}
}
jsonenc_putstr(e, "}");
}
static void jsonenc_fieldval(jsonenc* e, const upb_FieldDef* f,
upb_MessageValue val, bool* first) {
const char* name;
jsonenc_putsep(e, ",", first);
if (upb_FieldDef_IsExtension(f)) {
// TODO: For MessageSet, I would have expected this to print the message
// name here, but Python doesn't appear to do this. We should do more
// research here about what various implementations do.
jsonenc_printf(e, "\"[%s]\":", upb_FieldDef_FullName(f));
} else {
if (e->options & upb_JsonEncode_UseProtoNames) {
name = upb_FieldDef_Name(f);
} else {
name = upb_FieldDef_JsonName(f);
}
jsonenc_printf(e, "\"%s\":", name);
}
if (upb_FieldDef_IsMap(f)) {
jsonenc_map(e, val.map_val, f);
} else if (upb_FieldDef_IsRepeated(f)) {
jsonenc_array(e, val.array_val, f);
} else {
jsonenc_scalar(e, val, f);
}
}
static void jsonenc_msgfields(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m, bool first) {
upb_MessageValue val;
const upb_FieldDef* f;
if (e->options & upb_JsonEncode_EmitDefaults) {
/* Iterate over all fields. */
int i = 0;
int n = upb_MessageDef_FieldCount(m);
for (i = 0; i < n; i++) {
f = upb_MessageDef_Field(m, i);
if (!upb_FieldDef_HasPresence(f) || upb_Message_HasFieldByDef(msg, f)) {
jsonenc_fieldval(e, f, upb_Message_GetFieldByDef(msg, f), &first);
}
}
} else {
/* Iterate over non-empty fields. */
size_t iter = kUpb_Message_Begin;
while (upb_Message_Next(msg, m, e->ext_pool, &f, &val, &iter)) {
jsonenc_fieldval(e, f, val, &first);
}
}
}
static void jsonenc_msg(jsonenc* e, const upb_Message* msg,
const upb_MessageDef* m) {
jsonenc_putstr(e, "{");
jsonenc_msgfields(e, msg, m, true);
jsonenc_putstr(e, "}");
}
static size_t jsonenc_nullz(jsonenc* e, size_t size) {
size_t ret = e->ptr - e->buf + e->overflow;
if (size > 0) {
if (e->ptr == e->end) e->ptr--;
*e->ptr = '\0';
}
return ret;
}
static size_t upb_JsonEncoder_Encode(jsonenc* const e,
const upb_Message* const msg,
const upb_MessageDef* const m,
const size_t size) {
if (UPB_SETJMP(e->err) != 0) return -1;
jsonenc_msgfield(e, msg, m);
if (e->arena) upb_Arena_Free(e->arena);
return jsonenc_nullz(e, size);
}
size_t upb_JsonEncode(const upb_Message* msg, const upb_MessageDef* m,
const upb_DefPool* ext_pool, int options, char* buf,
size_t size, upb_Status* status) {
jsonenc e;
e.buf = buf;
e.ptr = buf;
e.end = UPB_PTRADD(buf, size);
e.overflow = 0;
e.options = options;
e.ext_pool = ext_pool;
e.status = status;
e.arena = NULL;
return upb_JsonEncoder_Encode(&e, msg, m, size);
}
#include <stdlib.h>
// Must be last.
static void* upb_global_allocfunc(upb_alloc* alloc, void* ptr, size_t oldsize,
size_t size) {
UPB_UNUSED(alloc);
UPB_UNUSED(oldsize);
if (size == 0) {
free(ptr);
return NULL;
} else {
return realloc(ptr, size);
}
}
upb_alloc upb_alloc_global = {&upb_global_allocfunc};
#ifdef UPB_TRACING_ENABLED
#include <stdatomic.h>
#endif
#include <stddef.h>
#include <stdint.h>
// Must be last.
static UPB_ATOMIC(size_t) max_block_size = 32 << 10;
void upb_Arena_SetMaxBlockSize(size_t max) { max_block_size = max; }
typedef struct upb_MemBlock {
// Atomic only for the benefit of SpaceAllocated().
UPB_ATOMIC(struct upb_MemBlock*) next;
uint32_t size;
// Data follows.
} upb_MemBlock;
typedef struct upb_ArenaInternal {
// upb_alloc* together with a low bit which signals if there is an initial
// block.
uintptr_t block_alloc;
// When multiple arenas are fused together, each arena points to a parent
// arena (root points to itself). The root tracks how many live arenas
// reference it.
// The low bit is tagged:
// 0: pointer to parent
// 1: count, left shifted by one
UPB_ATOMIC(uintptr_t) parent_or_count;
// All nodes that are fused together are in a singly-linked list.
// == NULL at end of list.
UPB_ATOMIC(struct upb_ArenaInternal*) next;
// The last element of the linked list. This is present only as an
// optimization, so that we do not have to iterate over all members for every
// fuse. Only significant for an arena root. In other cases it is ignored.
// == self when no other list members.
UPB_ATOMIC(struct upb_ArenaInternal*) tail;
// Linked list of blocks to free/cleanup. Atomic only for the benefit of
// upb_Arena_SpaceAllocated().
UPB_ATOMIC(upb_MemBlock*) blocks;
} upb_ArenaInternal;
// All public + private state for an arena.
typedef struct {
upb_Arena head;
upb_ArenaInternal body;
} upb_ArenaState;
typedef struct {
upb_ArenaInternal* root;
uintptr_t tagged_count;
} upb_ArenaRoot;
static const size_t kUpb_MemblockReserve =
UPB_ALIGN_UP(sizeof(upb_MemBlock), UPB_MALLOC_ALIGN);
// Extracts the (upb_ArenaInternal*) from a (upb_Arena*)
static upb_ArenaInternal* upb_Arena_Internal(const upb_Arena* a) {
return &((upb_ArenaState*)a)->body;
}
static bool _upb_Arena_IsTaggedRefcount(uintptr_t parent_or_count) {
return (parent_or_count & 1) == 1;
}
static bool _upb_Arena_IsTaggedPointer(uintptr_t parent_or_count) {
return (parent_or_count & 1) == 0;
}
static uintptr_t _upb_Arena_RefCountFromTagged(uintptr_t parent_or_count) {
UPB_ASSERT(_upb_Arena_IsTaggedRefcount(parent_or_count));
return parent_or_count >> 1;
}
static uintptr_t _upb_Arena_TaggedFromRefcount(uintptr_t refcount) {
uintptr_t parent_or_count = (refcount << 1) | 1;
UPB_ASSERT(_upb_Arena_IsTaggedRefcount(parent_or_count));
return parent_or_count;
}
static upb_ArenaInternal* _upb_Arena_PointerFromTagged(
uintptr_t parent_or_count) {
UPB_ASSERT(_upb_Arena_IsTaggedPointer(parent_or_count));
return (upb_ArenaInternal*)parent_or_count;
}
static uintptr_t _upb_Arena_TaggedFromPointer(upb_ArenaInternal* ai) {
uintptr_t parent_or_count = (uintptr_t)ai;
UPB_ASSERT(_upb_Arena_IsTaggedPointer(parent_or_count));
return parent_or_count;
}
static upb_alloc* _upb_ArenaInternal_BlockAlloc(upb_ArenaInternal* ai) {
return (upb_alloc*)(ai->block_alloc & ~0x1);
}
static uintptr_t _upb_Arena_MakeBlockAlloc(upb_alloc* alloc, bool has_initial) {
uintptr_t alloc_uint = (uintptr_t)alloc;
UPB_ASSERT((alloc_uint & 1) == 0);
return alloc_uint | (has_initial ? 1 : 0);
}
static bool _upb_ArenaInternal_HasInitialBlock(upb_ArenaInternal* ai) {
return ai->block_alloc & 0x1;
}
#ifdef UPB_TRACING_ENABLED
static void (*_init_arena_trace_handler)(const upb_Arena*, size_t size) = NULL;
static void (*_fuse_arena_trace_handler)(const upb_Arena*,
const upb_Arena*) = NULL;
static void (*_free_arena_trace_handler)(const upb_Arena*) = NULL;
void upb_Arena_SetTraceHandler(
void (*initArenaTraceHandler)(const upb_Arena*, size_t size),
void (*fuseArenaTraceHandler)(const upb_Arena*, const upb_Arena*),
void (*freeArenaTraceHandler)(const upb_Arena*)) {
_init_arena_trace_handler = initArenaTraceHandler;
_fuse_arena_trace_handler = fuseArenaTraceHandler;
_free_arena_trace_handler = freeArenaTraceHandler;
}
void upb_Arena_LogInit(const upb_Arena* arena, size_t size) {
if (_init_arena_trace_handler) {
_init_arena_trace_handler(arena, size);
}
}
void upb_Arena_LogFuse(const upb_Arena* arena1, const upb_Arena* arena2) {
if (_fuse_arena_trace_handler) {
_fuse_arena_trace_handler(arena1, arena2);
}
}
void upb_Arena_LogFree(const upb_Arena* arena) {
if (_free_arena_trace_handler) {
_free_arena_trace_handler(arena);
}
}
#endif // UPB_TRACING_ENABLED
static upb_ArenaRoot _upb_Arena_FindRoot(const upb_Arena* a) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
uintptr_t poc = upb_Atomic_Load(&ai->parent_or_count, memory_order_acquire);
while (_upb_Arena_IsTaggedPointer(poc)) {
upb_ArenaInternal* next = _upb_Arena_PointerFromTagged(poc);
UPB_ASSERT(ai != next);
uintptr_t next_poc =
upb_Atomic_Load(&next->parent_or_count, memory_order_acquire);
if (_upb_Arena_IsTaggedPointer(next_poc)) {
// To keep complexity down, we lazily collapse levels of the tree. This
// keeps it flat in the final case, but doesn't cost much incrementally.
//
// Path splitting keeps time complexity down, see:
// https://en.wikipedia.org/wiki/Disjoint-set_data_structure
//
// We can safely use a relaxed atomic here because all threads doing this
// will converge on the same value and we don't need memory orderings to
// be visible.
//
// This is true because:
// - If no fuses occur, this will eventually become the root.
// - If fuses are actively occurring, the root may change, but the
// invariant is that `parent_or_count` merely points to *a* parent.
//
// In other words, it is moving towards "the" root, and that root may move
// further away over time, but the path towards that root will continue to
// be valid and the creation of the path carries all the memory orderings
// required.
UPB_ASSERT(ai != _upb_Arena_PointerFromTagged(next_poc));
upb_Atomic_Store(&ai->parent_or_count, next_poc, memory_order_relaxed);
}
ai = next;
poc = next_poc;
}
return (upb_ArenaRoot){.root = ai, .tagged_count = poc};
}
size_t upb_Arena_SpaceAllocated(upb_Arena* arena, size_t* fused_count) {
upb_ArenaInternal* ai = _upb_Arena_FindRoot(arena).root;
size_t memsize = 0;
size_t local_fused_count = 0;
while (ai != NULL) {
upb_MemBlock* block = upb_Atomic_Load(&ai->blocks, memory_order_relaxed);
while (block != NULL) {
memsize += sizeof(upb_MemBlock) + block->size;
block = upb_Atomic_Load(&block->next, memory_order_relaxed);
}
ai = upb_Atomic_Load(&ai->next, memory_order_relaxed);
local_fused_count++;
}
if (fused_count) *fused_count = local_fused_count;
return memsize;
}
bool UPB_PRIVATE(_upb_Arena_Contains)(const upb_Arena* a, void* ptr) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
UPB_ASSERT(ai);
upb_MemBlock* block = upb_Atomic_Load(&ai->blocks, memory_order_relaxed);
while (block) {
uintptr_t beg = (uintptr_t)block;
uintptr_t end = beg + block->size;
if ((uintptr_t)ptr >= beg && (uintptr_t)ptr < end) return true;
block = upb_Atomic_Load(&block->next, memory_order_relaxed);
}
return false;
}
uint32_t upb_Arena_DebugRefCount(upb_Arena* a) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
// These loads could probably be relaxed, but given that this is debug-only,
// it's not worth introducing a new variant for it.
uintptr_t poc = upb_Atomic_Load(&ai->parent_or_count, memory_order_acquire);
while (_upb_Arena_IsTaggedPointer(poc)) {
ai = _upb_Arena_PointerFromTagged(poc);
poc = upb_Atomic_Load(&ai->parent_or_count, memory_order_acquire);
}
return _upb_Arena_RefCountFromTagged(poc);
}
static void _upb_Arena_AddBlock(upb_Arena* a, void* ptr, size_t size) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
upb_MemBlock* block = ptr;
// Insert into linked list.
block->size = (uint32_t)size;
upb_Atomic_Init(&block->next, ai->blocks);
upb_Atomic_Store(&ai->blocks, block, memory_order_release);
a->UPB_PRIVATE(ptr) = UPB_PTR_AT(block, kUpb_MemblockReserve, char);
a->UPB_PRIVATE(end) = UPB_PTR_AT(block, size, char);
UPB_POISON_MEMORY_REGION(a->UPB_PRIVATE(ptr),
a->UPB_PRIVATE(end) - a->UPB_PRIVATE(ptr));
}
static bool _upb_Arena_AllocBlock(upb_Arena* a, size_t size) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
if (!ai->block_alloc) return false;
upb_MemBlock* last_block = upb_Atomic_Load(&ai->blocks, memory_order_acquire);
size_t last_size = last_block != NULL ? last_block->size : 128;
// Don't naturally grow beyond the max block size.
size_t clamped_size = UPB_MIN(last_size * 2, max_block_size);
// We may need to exceed the max block size if the user requested a large
// allocation.
size_t block_size = UPB_MAX(size, clamped_size) + kUpb_MemblockReserve;
upb_MemBlock* block =
upb_malloc(_upb_ArenaInternal_BlockAlloc(ai), block_size);
if (!block) return false;
_upb_Arena_AddBlock(a, block, block_size);
UPB_ASSERT(UPB_PRIVATE(_upb_ArenaHas)(a) >= size);
return true;
}
void* UPB_PRIVATE(_upb_Arena_SlowMalloc)(upb_Arena* a, size_t size) {
if (!_upb_Arena_AllocBlock(a, size)) return NULL; // OOM
return upb_Arena_Malloc(a, size - UPB_ASAN_GUARD_SIZE);
}
static upb_Arena* _upb_Arena_InitSlow(upb_alloc* alloc) {
const size_t first_block_overhead =
sizeof(upb_ArenaState) + kUpb_MemblockReserve;
upb_ArenaState* a;
// We need to malloc the initial block.
char* mem;
size_t n = first_block_overhead + 256;
if (!alloc || !(mem = upb_malloc(alloc, n))) {
return NULL;
}
a = UPB_PTR_AT(mem, n - sizeof(upb_ArenaState), upb_ArenaState);
n -= sizeof(upb_ArenaState);
a->body.block_alloc = _upb_Arena_MakeBlockAlloc(alloc, 0);
upb_Atomic_Init(&a->body.parent_or_count, _upb_Arena_TaggedFromRefcount(1));
upb_Atomic_Init(&a->body.next, NULL);
upb_Atomic_Init(&a->body.tail, &a->body);
upb_Atomic_Init(&a->body.blocks, NULL);
_upb_Arena_AddBlock(&a->head, mem, n);
return &a->head;
}
upb_Arena* upb_Arena_Init(void* mem, size_t n, upb_alloc* alloc) {
UPB_ASSERT(sizeof(void*) * UPB_ARENA_SIZE_HACK >= sizeof(upb_ArenaState));
upb_ArenaState* a;
if (n) {
/* Align initial pointer up so that we return properly-aligned pointers. */
void* aligned = (void*)UPB_ALIGN_UP((uintptr_t)mem, UPB_MALLOC_ALIGN);
size_t delta = (uintptr_t)aligned - (uintptr_t)mem;
n = delta <= n ? n - delta : 0;
mem = aligned;
}
/* Round block size down to alignof(*a) since we will allocate the arena
* itself at the end. */
n = UPB_ALIGN_DOWN(n, UPB_ALIGN_OF(upb_ArenaState));
if (UPB_UNLIKELY(n < sizeof(upb_ArenaState))) {
#ifdef UPB_TRACING_ENABLED
upb_Arena* ret = _upb_Arena_InitSlow(alloc);
upb_Arena_LogInit(ret, n);
return ret;
#else
return _upb_Arena_InitSlow(alloc);
#endif
}
a = UPB_PTR_AT(mem, n - sizeof(upb_ArenaState), upb_ArenaState);
upb_Atomic_Init(&a->body.parent_or_count, _upb_Arena_TaggedFromRefcount(1));
upb_Atomic_Init(&a->body.next, NULL);
upb_Atomic_Init(&a->body.tail, &a->body);
upb_Atomic_Init(&a->body.blocks, NULL);
a->body.block_alloc = _upb_Arena_MakeBlockAlloc(alloc, 1);
a->head.UPB_PRIVATE(ptr) = mem;
a->head.UPB_PRIVATE(end) = UPB_PTR_AT(mem, n - sizeof(upb_ArenaState), char);
#ifdef UPB_TRACING_ENABLED
upb_Arena_LogInit(&a->head, n);
#endif
return &a->head;
}
static void _upb_Arena_DoFree(upb_ArenaInternal* ai) {
UPB_ASSERT(_upb_Arena_RefCountFromTagged(ai->parent_or_count) == 1);
while (ai != NULL) {
// Load first since arena itself is likely from one of its blocks.
upb_ArenaInternal* next_arena =
(upb_ArenaInternal*)upb_Atomic_Load(&ai->next, memory_order_acquire);
upb_alloc* block_alloc = _upb_ArenaInternal_BlockAlloc(ai);
upb_MemBlock* block = upb_Atomic_Load(&ai->blocks, memory_order_acquire);
while (block != NULL) {
// Load first since we are deleting block.
upb_MemBlock* next_block =
upb_Atomic_Load(&block->next, memory_order_acquire);
upb_free(block_alloc, block);
block = next_block;
}
ai = next_arena;
}
}
void upb_Arena_Free(upb_Arena* a) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
uintptr_t poc = upb_Atomic_Load(&ai->parent_or_count, memory_order_acquire);
retry:
while (_upb_Arena_IsTaggedPointer(poc)) {
ai = _upb_Arena_PointerFromTagged(poc);
poc = upb_Atomic_Load(&ai->parent_or_count, memory_order_acquire);
}
// compare_exchange or fetch_sub are RMW operations, which are more
// expensive then direct loads. As an optimization, we only do RMW ops
// when we need to update things for other threads to see.
if (poc == _upb_Arena_TaggedFromRefcount(1)) {
#ifdef UPB_TRACING_ENABLED
upb_Arena_LogFree(a);
#endif
_upb_Arena_DoFree(ai);
return;
}
if (upb_Atomic_CompareExchangeWeak(
&ai->parent_or_count, &poc,
_upb_Arena_TaggedFromRefcount(_upb_Arena_RefCountFromTagged(poc) - 1),
memory_order_release, memory_order_acquire)) {
// We were >1 and we decremented it successfully, so we are done.
return;
}
// We failed our update, so someone has done something, retry the whole
// process, but the failed exchange reloaded `poc` for us.
goto retry;
}
static void _upb_Arena_DoFuseArenaLists(upb_ArenaInternal* const parent,
upb_ArenaInternal* child) {
upb_ArenaInternal* parent_tail =
upb_Atomic_Load(&parent->tail, memory_order_relaxed);
do {
// Our tail might be stale, but it will always converge to the true tail.
upb_ArenaInternal* parent_tail_next =
upb_Atomic_Load(&parent_tail->next, memory_order_relaxed);
while (parent_tail_next != NULL) {
parent_tail = parent_tail_next;
parent_tail_next =
upb_Atomic_Load(&parent_tail->next, memory_order_relaxed);
}
upb_ArenaInternal* displaced =
upb_Atomic_Exchange(&parent_tail->next, child, memory_order_relaxed);
parent_tail = upb_Atomic_Load(&child->tail, memory_order_relaxed);
// If we displaced something that got installed racily, we can simply
// reinstall it on our new tail.
child = displaced;
} while (child != NULL);
upb_Atomic_Store(&parent->tail, parent_tail, memory_order_relaxed);
}
static upb_ArenaInternal* _upb_Arena_DoFuse(const upb_Arena* a1,
const upb_Arena* a2,
uintptr_t* ref_delta) {
// `parent_or_count` has two distinct modes
// - parent pointer mode
// - refcount mode
//
// In parent pointer mode, it may change what pointer it refers to in the
// tree, but it will always approach a root. Any operation that walks the
// tree to the root may collapse levels of the tree concurrently.
upb_ArenaRoot r1 = _upb_Arena_FindRoot(a1);
upb_ArenaRoot r2 = _upb_Arena_FindRoot(a2);
if (r1.root == r2.root) return r1.root; // Already fused.
// Avoid cycles by always fusing into the root with the lower address.
if ((uintptr_t)r1.root > (uintptr_t)r2.root) {
upb_ArenaRoot tmp = r1;
r1 = r2;
r2 = tmp;
}
// The moment we install `r1` as the parent for `r2` all racing frees may
// immediately begin decrementing `r1`'s refcount (including pending
// increments to that refcount and their frees!). We need to add `r2`'s refs
// now, so that `r1` can withstand any unrefs that come from r2.
//
// Note that while it is possible for `r2`'s refcount to increase
// asynchronously, we will not actually do the reparenting operation below
// unless `r2`'s refcount is unchanged from when we read it.
//
// Note that we may have done this previously, either to this node or a
// different node, during a previous and failed DoFuse() attempt. But we will
// not lose track of these refs because we always add them to our overall
// delta.
uintptr_t r2_untagged_count = r2.tagged_count & ~1;
uintptr_t with_r2_refs = r1.tagged_count + r2_untagged_count;
if (!upb_Atomic_CompareExchangeStrong(
&r1.root->parent_or_count, &r1.tagged_count, with_r2_refs,
memory_order_release, memory_order_acquire)) {
return NULL;
}
// Perform the actual fuse by removing the refs from `r2` and swapping in the
// parent pointer.
if (!upb_Atomic_CompareExchangeStrong(
&r2.root->parent_or_count, &r2.tagged_count,
_upb_Arena_TaggedFromPointer(r1.root), memory_order_release,
memory_order_acquire)) {
// We'll need to remove the excess refs we added to r1 previously.
*ref_delta += r2_untagged_count;
return NULL;
}
// Now that the fuse has been performed (and can no longer fail) we need to
// append `r2` to `r1`'s linked list.
_upb_Arena_DoFuseArenaLists(r1.root, r2.root);
return r1.root;
}
static bool _upb_Arena_FixupRefs(upb_ArenaInternal* new_root,
uintptr_t ref_delta) {
if (ref_delta == 0) return true; // No fixup required.
uintptr_t poc =
upb_Atomic_Load(&new_root->parent_or_count, memory_order_relaxed);
if (_upb_Arena_IsTaggedPointer(poc)) return false;
uintptr_t with_refs = poc - ref_delta;
UPB_ASSERT(!_upb_Arena_IsTaggedPointer(with_refs));
return upb_Atomic_CompareExchangeStrong(&new_root->parent_or_count, &poc,
with_refs, memory_order_relaxed,
memory_order_relaxed);
}
bool upb_Arena_Fuse(const upb_Arena* a1, const upb_Arena* a2) {
if (a1 == a2) return true; // trivial fuse
#ifdef UPB_TRACING_ENABLED
upb_Arena_LogFuse(a1, a2);
#endif
upb_ArenaInternal* ai1 = upb_Arena_Internal(a1);
upb_ArenaInternal* ai2 = upb_Arena_Internal(a2);
// Do not fuse initial blocks since we cannot lifetime extend them.
// Any other fuse scenario is allowed.
if (_upb_ArenaInternal_HasInitialBlock(ai1) ||
_upb_ArenaInternal_HasInitialBlock(ai2)) {
return false;
}
// The number of refs we ultimately need to transfer to the new root.
uintptr_t ref_delta = 0;
while (true) {
upb_ArenaInternal* new_root = _upb_Arena_DoFuse(a1, a2, &ref_delta);
if (new_root != NULL && _upb_Arena_FixupRefs(new_root, ref_delta)) {
return true;
}
}
}
bool upb_Arena_IsFused(const upb_Arena* a, const upb_Arena* b) {
if (a == b) return true; // trivial fuse
while (true) {
upb_ArenaRoot ra = _upb_Arena_FindRoot(a);
if (ra.root == _upb_Arena_FindRoot(b).root) return true;
if (ra.root == _upb_Arena_FindRoot(a).root) return false;
// a's root changed since we last checked. Retry.
}
}
bool upb_Arena_IncRefFor(const upb_Arena* a, const void* owner) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
if (_upb_ArenaInternal_HasInitialBlock(ai)) return false;
upb_ArenaRoot r;
retry:
r = _upb_Arena_FindRoot(a);
if (upb_Atomic_CompareExchangeWeak(
&r.root->parent_or_count, &r.tagged_count,
_upb_Arena_TaggedFromRefcount(
_upb_Arena_RefCountFromTagged(r.tagged_count) + 1),
memory_order_release, memory_order_acquire)) {
// We incremented it successfully, so we are done.
return true;
}
// We failed update due to parent switching on the arena.
goto retry;
}
void upb_Arena_DecRefFor(const upb_Arena* a, const void* owner) {
upb_Arena_Free((upb_Arena*)a);
}
upb_alloc* upb_Arena_GetUpbAlloc(upb_Arena* a) {
upb_ArenaInternal* ai = upb_Arena_Internal(a);
return _upb_ArenaInternal_BlockAlloc(ai);
}
void UPB_PRIVATE(_upb_Arena_SwapIn)(upb_Arena* des, const upb_Arena* src) {
upb_ArenaInternal* desi = upb_Arena_Internal(des);
upb_ArenaInternal* srci = upb_Arena_Internal(src);
*des = *src;
desi->block_alloc = srci->block_alloc;
upb_MemBlock* blocks = upb_Atomic_Load(&srci->blocks, memory_order_relaxed);
upb_Atomic_Init(&desi->blocks, blocks);
}
void UPB_PRIVATE(_upb_Arena_SwapOut)(upb_Arena* des, const upb_Arena* src) {
upb_ArenaInternal* desi = upb_Arena_Internal(des);
upb_ArenaInternal* srci = upb_Arena_Internal(src);
*des = *src;
upb_MemBlock* blocks = upb_Atomic_Load(&srci->blocks, memory_order_relaxed);
upb_Atomic_Store(&desi->blocks, blocks, memory_order_relaxed);
}
#include <string.h>
// Must be last.
bool upb_Message_SetMapEntry(upb_Map* map, const upb_MiniTable* m,
const upb_MiniTableField* f,
upb_Message* map_entry_message, upb_Arena* arena) {
UPB_ASSERT(!upb_Message_IsFrozen(map_entry_message));
const upb_MiniTable* map_entry_mini_table =
upb_MiniTable_MapEntrySubMessage(m, f);
UPB_ASSERT(map_entry_mini_table);
const upb_MiniTableField* map_entry_key_field =
upb_MiniTable_MapKey(map_entry_mini_table);
const upb_MiniTableField* map_entry_value_field =
upb_MiniTable_MapValue(map_entry_mini_table);
// Map key/value cannot have explicit defaults,
// hence assuming a zero default is valid.
upb_MessageValue default_val;
memset(&default_val, 0, sizeof(upb_MessageValue));
upb_MessageValue map_entry_key =
upb_Message_GetField(map_entry_message, map_entry_key_field, default_val);
upb_MessageValue map_entry_value = upb_Message_GetField(
map_entry_message, map_entry_value_field, default_val);
return upb_Map_Set(map, map_entry_key, map_entry_value, arena);
}
#include <stdint.h>
#include <string.h>
// Must be last.
upb_Array* upb_Array_New(upb_Arena* a, upb_CType type) {
const int lg2 = UPB_PRIVATE(_upb_CType_SizeLg2)(type);
return UPB_PRIVATE(_upb_Array_New)(a, 4, lg2);
}
upb_MessageValue upb_Array_Get(const upb_Array* arr, size_t i) {
UPB_ASSERT(i < upb_Array_Size(arr));
upb_MessageValue ret;
const char* data = upb_Array_DataPtr(arr);
const int lg2 = UPB_PRIVATE(_upb_Array_ElemSizeLg2)(arr);
memcpy(&ret, data + (i << lg2), 1 << lg2);
return ret;
}
upb_MutableMessageValue upb_Array_GetMutable(upb_Array* arr, size_t i) {
UPB_ASSERT(i < upb_Array_Size(arr));
upb_MutableMessageValue ret;
char* data = upb_Array_MutableDataPtr(arr);
const int lg2 = UPB_PRIVATE(_upb_Array_ElemSizeLg2)(arr);
memcpy(&ret, data + (i << lg2), 1 << lg2);
return ret;
}
void upb_Array_Set(upb_Array* arr, size_t i, upb_MessageValue val) {
UPB_ASSERT(!upb_Array_IsFrozen(arr));
UPB_ASSERT(i < upb_Array_Size(arr));
char* data = upb_Array_MutableDataPtr(arr);
const int lg2 = UPB_PRIVATE(_upb_Array_ElemSizeLg2)(arr);
memcpy(data + (i << lg2), &val, 1 << lg2);
}
bool upb_Array_Append(upb_Array* arr, upb_MessageValue val, upb_Arena* arena) {
UPB_ASSERT(!upb_Array_IsFrozen(arr));
UPB_ASSERT(arena);
if (!UPB_PRIVATE(_upb_Array_ResizeUninitialized)(
arr, arr->UPB_PRIVATE(size) + 1, arena)) {
return false;
}
upb_Array_Set(arr, arr->UPB_PRIVATE(size) - 1, val);
return true;
}
void upb_Array_Move(upb_Array* arr, size_t dst_idx, size_t src_idx,
size_t count) {
UPB_ASSERT(!upb_Array_IsFrozen(arr));
const int lg2 = UPB_PRIVATE(_upb_Array_ElemSizeLg2)(arr);
char* data = upb_Array_MutableDataPtr(arr);
memmove(&data[dst_idx << lg2], &data[src_idx << lg2], count << lg2);
}
bool upb_Array_Insert(upb_Array* arr, size_t i, size_t count,
upb_Arena* arena) {
UPB_ASSERT(!upb_Array_IsFrozen(arr));
UPB_ASSERT(arena);
UPB_ASSERT(i <= arr->UPB_PRIVATE(size));
UPB_ASSERT(count + arr->UPB_PRIVATE(size) >= count);
const size_t oldsize = arr->UPB_PRIVATE(size);
if (!UPB_PRIVATE(_upb_Array_ResizeUninitialized)(
arr, arr->UPB_PRIVATE(size) + count, arena)) {
return false;
}
upb_Array_Move(arr, i + count, i, oldsize - i);
return true;
}
/*
* i end arr->size
* |------------|XXXXXXXX|--------|
*/
void upb_Array_Delete(upb_Array* arr, size_t i, size_t count) {
UPB_ASSERT(!upb_Array_IsFrozen(arr));
const size_t end = i + count;
UPB_ASSERT(i <= end);
UPB_ASSERT(end <= arr->UPB_PRIVATE(size));
upb_Array_Move(arr, i, end, arr->UPB_PRIVATE(size) - end);
arr->UPB_PRIVATE(size) -= count;
}
bool upb_Array_Resize(upb_Array* arr, size_t size, upb_Arena* arena) {
UPB_ASSERT(!upb_Array_IsFrozen(arr));
const size_t oldsize = arr->UPB_PRIVATE(size);
if (UPB_UNLIKELY(
!UPB_PRIVATE(_upb_Array_ResizeUninitialized)(arr, size, arena))) {
return false;
}
const size_t newsize = arr->UPB_PRIVATE(size);
if (newsize > oldsize) {
const int lg2 = UPB_PRIVATE(_upb_Array_ElemSizeLg2)(arr);
char* data = upb_Array_MutableDataPtr(arr);
memset(data + (oldsize << lg2), 0, (newsize - oldsize) << lg2);
}
return true;
}
bool UPB_PRIVATE(_upb_Array_Realloc)(upb_Array* array, size_t min_capacity,
upb_Arena* arena) {
size_t new_capacity = UPB_MAX(array->UPB_PRIVATE(capacity), 4);
const int lg2 = UPB_PRIVATE(_upb_Array_ElemSizeLg2)(array);
size_t old_bytes = array->UPB_PRIVATE(capacity) << lg2;
void* ptr = upb_Array_MutableDataPtr(array);
// Log2 ceiling of size.
while (new_capacity < min_capacity) new_capacity *= 2;
const size_t new_bytes = new_capacity << lg2;
ptr = upb_Arena_Realloc(arena, ptr, old_bytes, new_bytes);
if (!ptr) return false;
UPB_PRIVATE(_upb_Array_SetTaggedPtr)(array, ptr, lg2);
array->UPB_PRIVATE(capacity) = new_capacity;
return true;
}
void upb_Array_Freeze(upb_Array* arr, const upb_MiniTable* m) {
if (upb_Array_IsFrozen(arr)) return;
UPB_PRIVATE(_upb_Array_ShallowFreeze)(arr);
if (m) {
const size_t size = upb_Array_Size(arr);
for (size_t i = 0; i < size; i++) {
upb_MessageValue val = upb_Array_Get(arr, i);
upb_Message_Freeze((upb_Message*)val.msg_val, m);
}
}
}
#include <stddef.h>
#include <stdint.h>
// Must be last.
bool upb_Message_NextExtension(const upb_Message* msg,
const upb_MiniTableExtension** result,
uintptr_t* iter) {
size_t count;
const upb_Extension* ext = UPB_PRIVATE(_upb_Message_Getexts)(msg, &count);
size_t i = *iter;
if (i >= count) {
return false;
*result = NULL;
}
*result = ext[i].ext;
*iter = i + 1;
return true;
}
const upb_MiniTableExtension* upb_Message_FindExtensionByNumber(
const upb_Message* msg, uint32_t field_number) {
size_t count;
const upb_Extension* ext = UPB_PRIVATE(_upb_Message_Getexts)(msg, &count);
for (; count--; ext++) {
const upb_MiniTableExtension* e = ext->ext;
if (upb_MiniTableExtension_Number(e) == field_number) return e;
}
return NULL;
}
#include <stdint.h>
#include <string.h>
// Must be last.
// Strings/bytes are special-cased in maps.
char _upb_Map_CTypeSizeTable[12] = {
[kUpb_CType_Bool] = 1,
[kUpb_CType_Float] = 4,
[kUpb_CType_Int32] = 4,
[kUpb_CType_UInt32] = 4,
[kUpb_CType_Enum] = 4,
[kUpb_CType_Message] = sizeof(void*),
[kUpb_CType_Double] = 8,
[kUpb_CType_Int64] = 8,
[kUpb_CType_UInt64] = 8,
[kUpb_CType_String] = UPB_MAPTYPE_STRING,
[kUpb_CType_Bytes] = UPB_MAPTYPE_STRING,
};
upb_Map* upb_Map_New(upb_Arena* a, upb_CType key_type, upb_CType value_type) {
return _upb_Map_New(a, _upb_Map_CTypeSize(key_type),
_upb_Map_CTypeSize(value_type));
}
size_t upb_Map_Size(const upb_Map* map) { return _upb_Map_Size(map); }
bool upb_Map_Get(const upb_Map* map, upb_MessageValue key,
upb_MessageValue* val) {
return _upb_Map_Get(map, &key, map->key_size, val, map->val_size);
}
void upb_Map_Clear(upb_Map* map) { _upb_Map_Clear(map); }
upb_MapInsertStatus upb_Map_Insert(upb_Map* map, upb_MessageValue key,
upb_MessageValue val, upb_Arena* arena) {
UPB_ASSERT(arena);
return (upb_MapInsertStatus)_upb_Map_Insert(map, &key, map->key_size, &val,
map->val_size, arena);
}
bool upb_Map_Delete(upb_Map* map, upb_MessageValue key, upb_MessageValue* val) {
upb_value v;
const bool removed = _upb_Map_Delete(map, &key, map->key_size, &v);
if (val) _upb_map_fromvalue(v, val, map->val_size);
return removed;
}
bool upb_Map_Next(const upb_Map* map, upb_MessageValue* key,
upb_MessageValue* val, size_t* iter) {
upb_StringView k;
upb_value v;
const bool ok = upb_strtable_next2(&map->table, &k, &v, (intptr_t*)iter);
if (ok) {
_upb_map_fromkey(k, key, map->key_size);
_upb_map_fromvalue(v, val, map->val_size);
}
return ok;
}
UPB_API void upb_Map_SetEntryValue(upb_Map* map, size_t iter,
upb_MessageValue val) {
upb_value v;
_upb_map_tovalue(&val, map->val_size, &v, NULL);
upb_strtable_setentryvalue(&map->table, iter, v);
}
bool upb_MapIterator_Next(const upb_Map* map, size_t* iter) {
return _upb_map_next(map, iter);
}
bool upb_MapIterator_Done(const upb_Map* map, size_t iter) {
upb_strtable_iter i;
UPB_ASSERT(iter != kUpb_Map_Begin);
i.t = &map->table;
i.index = iter;
return upb_strtable_done(&i);
}
// Returns the key and value for this entry of the map.
upb_MessageValue upb_MapIterator_Key(const upb_Map* map, size_t iter) {
upb_strtable_iter i;
upb_MessageValue ret;
i.t = &map->table;
i.index = iter;
_upb_map_fromkey(upb_strtable_iter_key(&i), &ret, map->key_size);
return ret;
}
upb_MessageValue upb_MapIterator_Value(const upb_Map* map, size_t iter) {
upb_strtable_iter i;
upb_MessageValue ret;
i.t = &map->table;
i.index = iter;
_upb_map_fromvalue(upb_strtable_iter_value(&i), &ret, map->val_size);
return ret;
}
void upb_Map_Freeze(upb_Map* map, const upb_MiniTable* m) {
if (upb_Map_IsFrozen(map)) return;
UPB_PRIVATE(_upb_Map_ShallowFreeze)(map);
if (m) {
size_t iter = kUpb_Map_Begin;
upb_MessageValue key, val;
while (upb_Map_Next(map, &key, &val, &iter)) {
upb_Message_Freeze((upb_Message*)val.msg_val, m);
}
}
}
// EVERYTHING BELOW THIS LINE IS INTERNAL - DO NOT USE /////////////////////////
upb_Map* _upb_Map_New(upb_Arena* a, size_t key_size, size_t value_size) {
upb_Map* map = upb_Arena_Malloc(a, sizeof(upb_Map));
if (!map) return NULL;
upb_strtable_init(&map->table, 4, a);
map->key_size = key_size;
map->val_size = value_size;
map->UPB_PRIVATE(is_frozen) = false;
return map;
}
#include <stdint.h>
#include <string.h>
// Must be last.
static void _upb_mapsorter_getkeys(const void* _a, const void* _b, void* a_key,
void* b_key, size_t size) {
const upb_tabent* const* a = _a;
const upb_tabent* const* b = _b;
upb_StringView a_tabkey = upb_tabstrview((*a)->key);
upb_StringView b_tabkey = upb_tabstrview((*b)->key);
_upb_map_fromkey(a_tabkey, a_key, size);
_upb_map_fromkey(b_tabkey, b_key, size);
}
static int _upb_mapsorter_cmpi64(const void* _a, const void* _b) {
int64_t a, b;
_upb_mapsorter_getkeys(_a, _b, &a, &b, 8);
return a < b ? -1 : a > b;
}
static int _upb_mapsorter_cmpu64(const void* _a, const void* _b) {
uint64_t a, b;
_upb_mapsorter_getkeys(_a, _b, &a, &b, 8);
return a < b ? -1 : a > b;
}
static int _upb_mapsorter_cmpi32(const void* _a, const void* _b) {
int32_t a, b;
_upb_mapsorter_getkeys(_a, _b, &a, &b, 4);
return a < b ? -1 : a > b;
}
static int _upb_mapsorter_cmpu32(const void* _a, const void* _b) {
uint32_t a, b;
_upb_mapsorter_getkeys(_a, _b, &a, &b, 4);
return a < b ? -1 : a > b;
}
static int _upb_mapsorter_cmpbool(const void* _a, const void* _b) {
bool a, b;
_upb_mapsorter_getkeys(_a, _b, &a, &b, 1);
return a < b ? -1 : a > b;
}
static int _upb_mapsorter_cmpstr(const void* _a, const void* _b) {
upb_StringView a, b;
_upb_mapsorter_getkeys(_a, _b, &a, &b, UPB_MAPTYPE_STRING);
size_t common_size = UPB_MIN(a.size, b.size);
int cmp = memcmp(a.data, b.data, common_size);
if (cmp) return -cmp;
return a.size < b.size ? -1 : a.size > b.size;
}
static int (*const compar[kUpb_FieldType_SizeOf])(const void*, const void*) = {
[kUpb_FieldType_Int64] = _upb_mapsorter_cmpi64,
[kUpb_FieldType_SFixed64] = _upb_mapsorter_cmpi64,
[kUpb_FieldType_SInt64] = _upb_mapsorter_cmpi64,
[kUpb_FieldType_UInt64] = _upb_mapsorter_cmpu64,
[kUpb_FieldType_Fixed64] = _upb_mapsorter_cmpu64,
[kUpb_FieldType_Int32] = _upb_mapsorter_cmpi32,
[kUpb_FieldType_SInt32] = _upb_mapsorter_cmpi32,
[kUpb_FieldType_SFixed32] = _upb_mapsorter_cmpi32,
[kUpb_FieldType_Enum] = _upb_mapsorter_cmpi32,
[kUpb_FieldType_UInt32] = _upb_mapsorter_cmpu32,
[kUpb_FieldType_Fixed32] = _upb_mapsorter_cmpu32,
[kUpb_FieldType_Bool] = _upb_mapsorter_cmpbool,
[kUpb_FieldType_String] = _upb_mapsorter_cmpstr,
[kUpb_FieldType_Bytes] = _upb_mapsorter_cmpstr,
};
static bool _upb_mapsorter_resize(_upb_mapsorter* s, _upb_sortedmap* sorted,
int size) {
sorted->start = s->size;
sorted->pos = sorted->start;
sorted->end = sorted->start + size;
if (sorted->end > s->cap) {
const int oldsize = s->cap * sizeof(*s->entries);
s->cap = upb_Log2CeilingSize(sorted->end);
const int newsize = s->cap * sizeof(*s->entries);
s->entries = upb_grealloc(s->entries, oldsize, newsize);
if (!s->entries) return false;
}
s->size = sorted->end;
return true;
}
bool _upb_mapsorter_pushmap(_upb_mapsorter* s, upb_FieldType key_type,
const upb_Map* map, _upb_sortedmap* sorted) {
int map_size = _upb_Map_Size(map);
UPB_ASSERT(map_size);
if (!_upb_mapsorter_resize(s, sorted, map_size)) return false;
// Copy non-empty entries from the table to s->entries.
const void** dst = &s->entries[sorted->start];
const upb_tabent* src = map->table.t.entries;
const upb_tabent* end = src + upb_table_size(&map->table.t);
for (; src < end; src++) {
if (!upb_tabent_isempty(src)) {
*dst = src;
dst++;
}
}
UPB_ASSERT(dst == &s->entries[sorted->end]);
// Sort entries according to the key type.
qsort(&s->entries[sorted->start], map_size, sizeof(*s->entries),
compar[key_type]);
return true;
}
static int _upb_mapsorter_cmpext(const void* _a, const void* _b) {
const upb_Extension* const* a = _a;
const upb_Extension* const* b = _b;
uint32_t a_num = upb_MiniTableExtension_Number((*a)->ext);
uint32_t b_num = upb_MiniTableExtension_Number((*b)->ext);
assert(a_num != b_num);
return a_num < b_num ? -1 : 1;
}
bool _upb_mapsorter_pushexts(_upb_mapsorter* s, const upb_Extension* exts,
size_t count, _upb_sortedmap* sorted) {
if (!_upb_mapsorter_resize(s, sorted, count)) return false;
for (size_t i = 0; i < count; i++) {
s->entries[sorted->start + i] = &exts[i];
}
qsort(&s->entries[sorted->start], count, sizeof(*s->entries),
_upb_mapsorter_cmpext);
return true;
}
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
// Must be last.
static const size_t message_overhead = sizeof(upb_Message_Internal);
upb_Message* upb_Message_New(const upb_MiniTable* m, upb_Arena* a) {
return _upb_Message_New(m, a);
}
bool UPB_PRIVATE(_upb_Message_AddUnknown)(upb_Message* msg, const char* data,
size_t len, upb_Arena* arena) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
// TODO: b/376969853 - Add debug check that the unknown field is an overall
// valid proto field
if (!UPB_PRIVATE(_upb_Message_Realloc)(msg, len, arena)) return false;
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
memcpy(UPB_PTR_AT(in, in->unknown_end, char), data, len);
in->unknown_end += len;
return true;
}
bool UPB_PRIVATE(_upb_Message_AddUnknownV)(struct upb_Message* msg,
upb_Arena* arena,
upb_StringView data[],
size_t count) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
UPB_ASSERT(count > 0);
size_t total_len = 0;
for (size_t i = 0; i < count; i++) {
total_len += data[i].size;
}
if (!UPB_PRIVATE(_upb_Message_Realloc)(msg, total_len, arena)) return false;
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
for (size_t i = 0; i < count; i++) {
memcpy(UPB_PTR_AT(in, in->unknown_end, char), data[i].data, data[i].size);
in->unknown_end += data[i].size;
}
// TODO: b/376969853 - Add debug check that the unknown field is an overall
// valid proto field
return true;
}
void _upb_Message_DiscardUnknown_shallow(upb_Message* msg) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
if (in) {
in->unknown_end = message_overhead;
}
}
bool upb_Message_NextUnknown(const upb_Message* msg, upb_StringView* data,
uintptr_t* iter) {
const upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
if (in && *iter == kUpb_Message_UnknownBegin) {
size_t len = in->unknown_end - message_overhead;
if (len != 0) {
data->size = len;
data->data = (const char*)(in + 1);
(*iter)++;
return true;
}
}
data->size = 0;
data->data = NULL;
return false;
}
bool upb_Message_HasUnknown(const upb_Message* msg) {
const upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
if (in) {
return in->unknown_end > message_overhead;
}
return false;
}
const char* upb_Message_GetUnknown(const upb_Message* msg, size_t* len) {
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
if (in) {
*len = in->unknown_end - message_overhead;
return (char*)(in + 1);
} else {
*len = 0;
return NULL;
}
}
bool upb_Message_DeleteUnknown(upb_Message* msg, upb_StringView* data,
uintptr_t* iter) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
UPB_ASSERT(*iter == kUpb_Message_UnknownBegin + 1);
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
const char* internal_unknown_end = UPB_PTR_AT(in, in->unknown_end, char);
#ifndef NDEBUG
size_t full_unknown_size;
const char* full_unknown = upb_Message_GetUnknown(msg, &full_unknown_size);
UPB_ASSERT((uintptr_t)data->data >= (uintptr_t)full_unknown);
UPB_ASSERT((uintptr_t)data->data <
(uintptr_t)(full_unknown + full_unknown_size));
UPB_ASSERT((uintptr_t)(data->data + data->size) > (uintptr_t)data->data);
UPB_ASSERT((uintptr_t)(data->data + data->size) <=
(uintptr_t)internal_unknown_end);
#endif
const char* end = data->data + data->size;
size_t offset = data->data - (const char*)in;
if (end != internal_unknown_end) {
memmove(UPB_PTR_AT(in, offset, char), end, internal_unknown_end - end);
}
in->unknown_end -= data->size;
data->size = in->unknown_end - offset;
return data->size != 0;
}
size_t upb_Message_ExtensionCount(const upb_Message* msg) {
size_t count;
UPB_PRIVATE(_upb_Message_Getexts)(msg, &count);
return count;
}
void upb_Message_Freeze(upb_Message* msg, const upb_MiniTable* m) {
if (upb_Message_IsFrozen(msg)) return;
UPB_PRIVATE(_upb_Message_ShallowFreeze)(msg);
// Base Fields.
const size_t field_count = upb_MiniTable_FieldCount(m);
for (size_t i = 0; i < field_count; i++) {
const upb_MiniTableField* f = upb_MiniTable_GetFieldByIndex(m, i);
const upb_MiniTable* m2 = upb_MiniTable_SubMessage(m, f);
switch (UPB_PRIVATE(_upb_MiniTableField_Mode)(f)) {
case kUpb_FieldMode_Array: {
upb_Array* arr = upb_Message_GetMutableArray(msg, f);
if (arr) upb_Array_Freeze(arr, m2);
break;
}
case kUpb_FieldMode_Map: {
upb_Map* map = upb_Message_GetMutableMap(msg, f);
if (map) {
const upb_MiniTableField* f2 = upb_MiniTable_MapValue(m2);
const upb_MiniTable* m3 = upb_MiniTable_SubMessage(m2, f2);
upb_Map_Freeze(map, m3);
}
break;
}
case kUpb_FieldMode_Scalar: {
if (m2) {
upb_Message* msg2 = upb_Message_GetMutableMessage(msg, f);
if (msg2) upb_Message_Freeze(msg2, m2);
}
break;
}
}
}
// Extensions.
size_t ext_count;
const upb_Extension* ext = UPB_PRIVATE(_upb_Message_Getexts)(msg, &ext_count);
for (size_t i = 0; i < ext_count; i++) {
const upb_MiniTableExtension* e = ext[i].ext;
const upb_MiniTableField* f = &e->UPB_PRIVATE(field);
const upb_MiniTable* m2 = upb_MiniTableExtension_GetSubMessage(e);
upb_MessageValue val;
memcpy(&val, &ext[i].data, sizeof(upb_MessageValue));
switch (UPB_PRIVATE(_upb_MiniTableField_Mode)(f)) {
case kUpb_FieldMode_Array: {
upb_Array* arr = (upb_Array*)val.array_val;
if (arr) upb_Array_Freeze(arr, m2);
break;
}
case kUpb_FieldMode_Map:
UPB_UNREACHABLE(); // Maps cannot be extensions.
break;
case kUpb_FieldMode_Scalar:
if (upb_MiniTableField_IsSubMessage(f)) {
upb_Message* msg2 = (upb_Message*)val.msg_val;
if (msg2) upb_Message_Freeze(msg2, m2);
}
break;
}
}
}
#include <stddef.h>
#include <stdint.h>
// Must be last.
#ifdef __cplusplus
extern "C" {
#endif
bool upb_Message_IsEmpty(const upb_Message* msg, const upb_MiniTable* m) {
if (upb_Message_ExtensionCount(msg)) return false;
const upb_MiniTableField* f;
upb_MessageValue v;
size_t iter = kUpb_BaseField_Begin;
return !UPB_PRIVATE(_upb_Message_NextBaseField)(msg, m, &f, &v, &iter);
}
static bool _upb_Array_IsEqual(const upb_Array* arr1, const upb_Array* arr2,
upb_CType ctype, const upb_MiniTable* m,
int options) {
// Check for trivial equality.
if (arr1 == arr2) return true;
// Must have identical element counts.
const size_t size1 = arr1 ? upb_Array_Size(arr1) : 0;
const size_t size2 = arr2 ? upb_Array_Size(arr2) : 0;
if (size1 != size2) return false;
for (size_t i = 0; i < size1; i++) {
const upb_MessageValue val1 = upb_Array_Get(arr1, i);
const upb_MessageValue val2 = upb_Array_Get(arr2, i);
if (!upb_MessageValue_IsEqual(val1, val2, ctype, m, options)) return false;
}
return true;
}
static bool _upb_Map_IsEqual(const upb_Map* map1, const upb_Map* map2,
const upb_MiniTable* m, int options) {
// Check for trivial equality.
if (map1 == map2) return true;
// Must have identical element counts.
size_t size1 = map1 ? upb_Map_Size(map1) : 0;
size_t size2 = map2 ? upb_Map_Size(map2) : 0;
if (size1 != size2) return false;
const upb_MiniTableField* f = upb_MiniTable_MapValue(m);
const upb_MiniTable* m2_value = upb_MiniTable_SubMessage(m, f);
const upb_CType ctype = upb_MiniTableField_CType(f);
upb_MessageValue key, val1, val2;
size_t iter = kUpb_Map_Begin;
while (upb_Map_Next(map1, &key, &val1, &iter)) {
if (!upb_Map_Get(map2, key, &val2)) return false;
if (!upb_MessageValue_IsEqual(val1, val2, ctype, m2_value, options))
return false;
}
return true;
}
static bool _upb_Message_BaseFieldsAreEqual(const upb_Message* msg1,
const upb_Message* msg2,
const upb_MiniTable* m,
int options) {
// Iterate over all base fields for each message.
// The order will always match if the messages are equal.
size_t iter1 = kUpb_BaseField_Begin;
size_t iter2 = kUpb_BaseField_Begin;
for (;;) {
const upb_MiniTableField *f1, *f2;
upb_MessageValue val1, val2;
const bool got1 =
UPB_PRIVATE(_upb_Message_NextBaseField)(msg1, m, &f1, &val1, &iter1);
const bool got2 =
UPB_PRIVATE(_upb_Message_NextBaseField)(msg2, m, &f2, &val2, &iter2);
if (got1 != got2) return false; // Must have identical field counts.
if (!got1) return true; // Loop termination condition.
if (f1 != f2) return false; // Must have identical fields set.
const upb_MiniTable* subm = upb_MiniTable_SubMessage(m, f1);
const upb_CType ctype = upb_MiniTableField_CType(f1);
bool eq;
switch (UPB_PRIVATE(_upb_MiniTableField_Mode)(f1)) {
case kUpb_FieldMode_Array:
eq = _upb_Array_IsEqual(val1.array_val, val2.array_val, ctype, subm,
options);
break;
case kUpb_FieldMode_Map:
eq = _upb_Map_IsEqual(val1.map_val, val2.map_val, subm, options);
break;
case kUpb_FieldMode_Scalar:
eq = upb_MessageValue_IsEqual(val1, val2, ctype, subm, options);
break;
}
if (!eq) return false;
}
}
static bool _upb_Message_ExtensionsAreEqual(const upb_Message* msg1,
const upb_Message* msg2,
const upb_MiniTable* m,
int options) {
// Must have identical extension counts.
if (upb_Message_ExtensionCount(msg1) != upb_Message_ExtensionCount(msg2)) {
return false;
}
const upb_MiniTableExtension* e;
upb_MessageValue val1;
// Iterate over all extensions for msg1, and search msg2 for each extension.
size_t iter1 = kUpb_Extension_Begin;
while (UPB_PRIVATE(_upb_Message_NextExtension)(msg1, m, &e, &val1, &iter1)) {
const upb_Extension* ext2 = UPB_PRIVATE(_upb_Message_Getext)(msg2, e);
if (!ext2) return false;
const upb_MessageValue val2 = ext2->data;
const upb_MiniTableField* f = &e->UPB_PRIVATE(field);
const upb_MiniTable* subm = upb_MiniTableField_IsSubMessage(f)
? upb_MiniTableExtension_GetSubMessage(e)
: NULL;
const upb_CType ctype = upb_MiniTableField_CType(f);
bool eq;
switch (UPB_PRIVATE(_upb_MiniTableField_Mode)(f)) {
case kUpb_FieldMode_Array:
eq = _upb_Array_IsEqual(val1.array_val, val2.array_val, ctype, subm,
options);
break;
case kUpb_FieldMode_Map:
UPB_UNREACHABLE(); // Maps cannot be extensions.
break;
case kUpb_FieldMode_Scalar: {
eq = upb_MessageValue_IsEqual(val1, val2, ctype, subm, options);
break;
}
}
if (!eq) return false;
}
return true;
}
bool upb_Message_IsEqual(const upb_Message* msg1, const upb_Message* msg2,
const upb_MiniTable* m, int options) {
if (UPB_UNLIKELY(msg1 == msg2)) return true;
if (!_upb_Message_BaseFieldsAreEqual(msg1, msg2, m, options)) return false;
if (!_upb_Message_ExtensionsAreEqual(msg1, msg2, m, options)) return false;
if (!(options & kUpb_CompareOption_IncludeUnknownFields)) return true;
// The wire encoder enforces a maximum depth of 100 so we match that here.
return UPB_PRIVATE(_upb_Message_UnknownFieldsAreEqual)(msg1, msg2, 100) ==
kUpb_UnknownCompareResult_Equal;
}
#include <stdint.h>
#include <stdlib.h>
// Must be last.
typedef struct upb_UnknownFields upb_UnknownFields;
typedef struct {
uint32_t tag;
union {
uint64_t varint;
uint64_t uint64;
uint32_t uint32;
upb_StringView delimited;
upb_UnknownFields* group;
} data;
} upb_UnknownField;
struct upb_UnknownFields {
size_t size;
size_t capacity;
upb_UnknownField* fields;
};
typedef struct {
upb_EpsCopyInputStream stream;
upb_Arena* arena;
upb_UnknownField* tmp;
size_t tmp_size;
int depth;
upb_UnknownCompareResult status;
jmp_buf err;
} upb_UnknownField_Context;
typedef struct {
upb_UnknownField* arr_base;
upb_UnknownField* arr_ptr;
upb_UnknownField* arr_end;
uint32_t last_tag;
bool sorted;
} upb_UnknownFields_Builder;
UPB_NORETURN static void upb_UnknownFields_OutOfMemory(
upb_UnknownField_Context* ctx) {
ctx->status = kUpb_UnknownCompareResult_OutOfMemory;
UPB_LONGJMP(ctx->err, 1);
}
static void upb_UnknownFields_Grow(upb_UnknownField_Context* ctx,
upb_UnknownField** base,
upb_UnknownField** ptr,
upb_UnknownField** end) {
size_t old = (*ptr - *base);
size_t new = UPB_MAX(4, old * 2);
*base = upb_Arena_Realloc(ctx->arena, *base, old * sizeof(**base),
new * sizeof(**base));
if (!*base) upb_UnknownFields_OutOfMemory(ctx);
*ptr = *base + old;
*end = *base + new;
}
// We have to implement our own sort here, since qsort() is not an in-order
// sort. Here we use merge sort, the simplest in-order sort.
static void upb_UnknownFields_Merge(upb_UnknownField* arr, size_t start,
size_t mid, size_t end,
upb_UnknownField* tmp) {
memcpy(tmp, &arr[start], (end - start) * sizeof(*tmp));
upb_UnknownField* ptr1 = tmp;
upb_UnknownField* end1 = &tmp[mid - start];
upb_UnknownField* ptr2 = &tmp[mid - start];
upb_UnknownField* end2 = &tmp[end - start];
upb_UnknownField* out = &arr[start];
while (ptr1 < end1 && ptr2 < end2) {
if (ptr1->tag <= ptr2->tag) {
*out++ = *ptr1++;
} else {
*out++ = *ptr2++;
}
}
if (ptr1 < end1) {
memcpy(out, ptr1, (end1 - ptr1) * sizeof(*out));
} else if (ptr2 < end2) {
memcpy(out, ptr1, (end2 - ptr2) * sizeof(*out));
}
}
static void upb_UnknownFields_SortRecursive(upb_UnknownField* arr, size_t start,
size_t end, upb_UnknownField* tmp) {
if (end - start > 1) {
size_t mid = start + ((end - start) / 2);
upb_UnknownFields_SortRecursive(arr, start, mid, tmp);
upb_UnknownFields_SortRecursive(arr, mid, end, tmp);
upb_UnknownFields_Merge(arr, start, mid, end, tmp);
}
}
static void upb_UnknownFields_Sort(upb_UnknownField_Context* ctx,
upb_UnknownFields* fields) {
if (ctx->tmp_size < fields->size) {
const int oldsize = ctx->tmp_size * sizeof(*ctx->tmp);
ctx->tmp_size = UPB_MAX(8, ctx->tmp_size);
while (ctx->tmp_size < fields->size) ctx->tmp_size *= 2;
const int newsize = ctx->tmp_size * sizeof(*ctx->tmp);
ctx->tmp = upb_grealloc(ctx->tmp, oldsize, newsize);
}
upb_UnknownFields_SortRecursive(fields->fields, 0, fields->size, ctx->tmp);
}
static upb_UnknownFields* upb_UnknownFields_BuildFromBuffer(
upb_UnknownField_Context* ctx, const char** buf);
// Combines two unknown fields into one.
static void upb_CombineUnknownFields(upb_UnknownField_Context* ctx,
upb_UnknownFields_Builder* builder,
const char** buf) {
upb_UnknownField* arr_base = builder->arr_base;
upb_UnknownField* arr_ptr = builder->arr_ptr;
upb_UnknownField* arr_end = builder->arr_end;
const char* ptr = *buf;
uint32_t last_tag = builder->last_tag;
bool sorted = builder->sorted;
while (!upb_EpsCopyInputStream_IsDone(&ctx->stream, &ptr)) {
uint32_t tag;
ptr = upb_WireReader_ReadTag(ptr, &tag);
UPB_ASSERT(tag <= UINT32_MAX);
int wire_type = upb_WireReader_GetWireType(tag);
if (wire_type == kUpb_WireType_EndGroup) break;
if (tag < last_tag) sorted = false;
last_tag = tag;
if (arr_ptr == arr_end) {
upb_UnknownFields_Grow(ctx, &arr_base, &arr_ptr, &arr_end);
}
upb_UnknownField* field = arr_ptr;
field->tag = tag;
arr_ptr++;
switch (wire_type) {
case kUpb_WireType_Varint:
ptr = upb_WireReader_ReadVarint(ptr, &field->data.varint);
break;
case kUpb_WireType_64Bit:
ptr = upb_WireReader_ReadFixed64(ptr, &field->data.uint64);
break;
case kUpb_WireType_32Bit:
ptr = upb_WireReader_ReadFixed32(ptr, &field->data.uint32);
break;
case kUpb_WireType_Delimited: {
int size;
ptr = upb_WireReader_ReadSize(ptr, &size);
const char* s_ptr = ptr;
ptr = upb_EpsCopyInputStream_ReadStringAliased(&ctx->stream, &s_ptr,
size);
field->data.delimited.data = s_ptr;
field->data.delimited.size = size;
break;
}
case kUpb_WireType_StartGroup:
if (--ctx->depth == 0) {
ctx->status = kUpb_UnknownCompareResult_MaxDepthExceeded;
UPB_LONGJMP(ctx->err, 1);
}
field->data.group = upb_UnknownFields_BuildFromBuffer(ctx, &ptr);
ctx->depth++;
break;
default:
UPB_UNREACHABLE();
}
}
*buf = ptr;
builder->arr_base = arr_base;
builder->arr_ptr = arr_ptr;
builder->arr_end = arr_end;
builder->sorted = sorted;
builder->last_tag = last_tag;
}
static upb_UnknownFields* upb_UnknownFields_DoBuild(
upb_UnknownField_Context* ctx, upb_UnknownFields_Builder* builder) {
upb_UnknownFields* ret = upb_Arena_Malloc(ctx->arena, sizeof(*ret));
if (!ret) upb_UnknownFields_OutOfMemory(ctx);
ret->fields = builder->arr_base;
ret->size = builder->arr_ptr - builder->arr_base;
ret->capacity = builder->arr_end - builder->arr_base;
if (!builder->sorted) {
upb_UnknownFields_Sort(ctx, ret);
}
return ret;
}
// Builds a upb_UnknownFields data structure from the binary data in buf.
static upb_UnknownFields* upb_UnknownFields_BuildFromBuffer(
upb_UnknownField_Context* ctx, const char** buf) {
upb_UnknownFields_Builder builder = {
.arr_base = NULL,
.arr_ptr = NULL,
.arr_end = NULL,
.sorted = true,
.last_tag = 0,
};
const char* ptr = *buf;
upb_CombineUnknownFields(ctx, &builder, &ptr);
upb_UnknownFields* fields = upb_UnknownFields_DoBuild(ctx, &builder);
*buf = ptr;
return fields;
}
// Builds a upb_UnknownFields data structure from the unknown fields of a
// upb_Message.
static upb_UnknownFields* upb_UnknownFields_Build(upb_UnknownField_Context* ctx,
const upb_Message* msg) {
upb_UnknownFields_Builder builder = {
.arr_base = NULL,
.arr_ptr = NULL,
.arr_end = NULL,
.sorted = true,
.last_tag = 0,
};
uintptr_t iter = kUpb_Message_UnknownBegin;
upb_StringView view;
while (upb_Message_NextUnknown(msg, &view, &iter)) {
upb_EpsCopyInputStream_Init(&ctx->stream, &view.data, view.size, true);
upb_CombineUnknownFields(ctx, &builder, &view.data);
UPB_ASSERT(upb_EpsCopyInputStream_IsDone(&ctx->stream, &view.data) &&
!upb_EpsCopyInputStream_IsError(&ctx->stream));
}
upb_UnknownFields* fields = upb_UnknownFields_DoBuild(ctx, &builder);
return fields;
}
// Compares two sorted upb_UnknownFields structures for equality.
static bool upb_UnknownFields_IsEqual(const upb_UnknownFields* uf1,
const upb_UnknownFields* uf2) {
if (uf1->size != uf2->size) return false;
for (size_t i = 0, n = uf1->size; i < n; i++) {
upb_UnknownField* f1 = &uf1->fields[i];
upb_UnknownField* f2 = &uf2->fields[i];
if (f1->tag != f2->tag) return false;
int wire_type = f1->tag & 7;
switch (wire_type) {
case kUpb_WireType_Varint:
if (f1->data.varint != f2->data.varint) return false;
break;
case kUpb_WireType_64Bit:
if (f1->data.uint64 != f2->data.uint64) return false;
break;
case kUpb_WireType_32Bit:
if (f1->data.uint32 != f2->data.uint32) return false;
break;
case kUpb_WireType_Delimited:
if (!upb_StringView_IsEqual(f1->data.delimited, f2->data.delimited)) {
return false;
}
break;
case kUpb_WireType_StartGroup:
if (!upb_UnknownFields_IsEqual(f1->data.group, f2->data.group)) {
return false;
}
break;
default:
UPB_UNREACHABLE();
}
}
return true;
}
static upb_UnknownCompareResult upb_UnknownField_DoCompare(
upb_UnknownField_Context* ctx, const upb_Message* msg1,
const upb_Message* msg2) {
upb_UnknownCompareResult ret;
// First build both unknown fields into a sorted data structure (similar
// to the UnknownFieldSet in C++).
upb_UnknownFields* uf1 = upb_UnknownFields_Build(ctx, msg1);
upb_UnknownFields* uf2 = upb_UnknownFields_Build(ctx, msg2);
// Now perform the equality check on the sorted structures.
if (upb_UnknownFields_IsEqual(uf1, uf2)) {
ret = kUpb_UnknownCompareResult_Equal;
} else {
ret = kUpb_UnknownCompareResult_NotEqual;
}
return ret;
}
static upb_UnknownCompareResult upb_UnknownField_Compare(
upb_UnknownField_Context* const ctx, const upb_Message* msg1,
const upb_Message* msg2) {
upb_UnknownCompareResult ret;
if (UPB_SETJMP(ctx->err) == 0) {
ret = upb_UnknownField_DoCompare(ctx, msg1, msg2);
} else {
ret = ctx->status;
UPB_ASSERT(ret != kUpb_UnknownCompareResult_Equal);
}
upb_Arena_Free(ctx->arena);
upb_gfree(ctx->tmp);
return ret;
}
upb_UnknownCompareResult UPB_PRIVATE(_upb_Message_UnknownFieldsAreEqual)(
const upb_Message* msg1, const upb_Message* msg2, int max_depth) {
bool msg1_empty = !upb_Message_HasUnknown(msg1);
bool msg2_empty = !upb_Message_HasUnknown(msg2);
if (msg1_empty && msg2_empty) return kUpb_UnknownCompareResult_Equal;
if (msg1_empty || msg2_empty) return kUpb_UnknownCompareResult_NotEqual;
upb_UnknownField_Context ctx = {
.arena = upb_Arena_New(),
.depth = max_depth,
.tmp = NULL,
.tmp_size = 0,
.status = kUpb_UnknownCompareResult_Equal,
};
if (!ctx.arena) return kUpb_UnknownCompareResult_OutOfMemory;
return upb_UnknownField_Compare(&ctx, msg1, msg2);
}
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
// Must be last.
static upb_StringView upb_Clone_StringView(upb_StringView str,
upb_Arena* arena) {
if (str.size == 0) {
return upb_StringView_FromDataAndSize(NULL, 0);
}
void* cloned_data = upb_Arena_Malloc(arena, str.size);
upb_StringView cloned_str =
upb_StringView_FromDataAndSize(cloned_data, str.size);
memcpy(cloned_data, str.data, str.size);
return cloned_str;
}
static bool upb_Clone_MessageValue(void* value, upb_CType value_type,
const upb_MiniTable* sub, upb_Arena* arena) {
switch (value_type) {
case kUpb_CType_Bool:
case kUpb_CType_Float:
case kUpb_CType_Int32:
case kUpb_CType_UInt32:
case kUpb_CType_Enum:
case kUpb_CType_Double:
case kUpb_CType_Int64:
case kUpb_CType_UInt64:
return true;
case kUpb_CType_String:
case kUpb_CType_Bytes: {
upb_StringView source = *(upb_StringView*)value;
int size = source.size;
void* cloned_data = upb_Arena_Malloc(arena, size);
if (cloned_data == NULL) {
return false;
}
*(upb_StringView*)value =
upb_StringView_FromDataAndSize(cloned_data, size);
memcpy(cloned_data, source.data, size);
return true;
} break;
case kUpb_CType_Message: {
const upb_TaggedMessagePtr source = *(upb_TaggedMessagePtr*)value;
bool is_empty = upb_TaggedMessagePtr_IsEmpty(source);
if (is_empty) sub = UPB_PRIVATE(_upb_MiniTable_Empty)();
UPB_ASSERT(source);
upb_Message* clone = upb_Message_DeepClone(
UPB_PRIVATE(_upb_TaggedMessagePtr_GetMessage)(source), sub, arena);
*(upb_TaggedMessagePtr*)value =
UPB_PRIVATE(_upb_TaggedMessagePtr_Pack)(clone, is_empty);
return clone != NULL;
} break;
}
UPB_UNREACHABLE();
}
upb_Map* upb_Map_DeepClone(const upb_Map* map, upb_CType key_type,
upb_CType value_type,
const upb_MiniTable* map_entry_table,
upb_Arena* arena) {
upb_Map* cloned_map = _upb_Map_New(arena, map->key_size, map->val_size);
if (cloned_map == NULL) {
return NULL;
}
upb_MessageValue key, val;
size_t iter = kUpb_Map_Begin;
while (upb_Map_Next(map, &key, &val, &iter)) {
const upb_MiniTableField* value_field =
upb_MiniTable_MapValue(map_entry_table);
const upb_MiniTable* value_sub =
upb_MiniTableField_CType(value_field) == kUpb_CType_Message
? upb_MiniTable_GetSubMessageTable(map_entry_table, value_field)
: NULL;
upb_CType value_field_type = upb_MiniTableField_CType(value_field);
if (!upb_Clone_MessageValue(&val, value_field_type, value_sub, arena)) {
return NULL;
}
if (!upb_Map_Set(cloned_map, key, val, arena)) {
return NULL;
}
}
return cloned_map;
}
static upb_Map* upb_Message_Map_DeepClone(const upb_Map* map,
const upb_MiniTable* mini_table,
const upb_MiniTableField* f,
upb_Message* clone,
upb_Arena* arena) {
UPB_ASSERT(!upb_Message_IsFrozen(clone));
const upb_MiniTable* map_entry_table =
upb_MiniTable_MapEntrySubMessage(mini_table, f);
UPB_ASSERT(map_entry_table);
const upb_MiniTableField* key_field = upb_MiniTable_MapKey(map_entry_table);
const upb_MiniTableField* value_field =
upb_MiniTable_MapValue(map_entry_table);
upb_Map* cloned_map = upb_Map_DeepClone(
map, upb_MiniTableField_CType(key_field),
upb_MiniTableField_CType(value_field), map_entry_table, arena);
if (!cloned_map) {
return NULL;
}
upb_Message_SetBaseField(clone, f, &cloned_map);
return cloned_map;
}
upb_Array* upb_Array_DeepClone(const upb_Array* array, upb_CType value_type,
const upb_MiniTable* sub, upb_Arena* arena) {
const size_t size = upb_Array_Size(array);
const int lg2 = UPB_PRIVATE(_upb_CType_SizeLg2)(value_type);
upb_Array* cloned_array = UPB_PRIVATE(_upb_Array_New)(arena, size, lg2);
if (!cloned_array) {
return NULL;
}
if (!UPB_PRIVATE(_upb_Array_ResizeUninitialized)(cloned_array, size, arena)) {
return NULL;
}
for (size_t i = 0; i < size; ++i) {
upb_MessageValue val = upb_Array_Get(array, i);
if (!upb_Clone_MessageValue(&val, value_type, sub, arena)) {
return NULL;
}
upb_Array_Set(cloned_array, i, val);
}
return cloned_array;
}
static bool upb_Message_Array_DeepClone(const upb_Array* array,
const upb_MiniTable* mini_table,
const upb_MiniTableField* field,
upb_Message* clone, upb_Arena* arena) {
UPB_ASSERT(!upb_Message_IsFrozen(clone));
UPB_PRIVATE(_upb_MiniTableField_CheckIsArray)(field);
upb_Array* cloned_array = upb_Array_DeepClone(
array, upb_MiniTableField_CType(field),
upb_MiniTableField_CType(field) == kUpb_CType_Message
? upb_MiniTable_GetSubMessageTable(mini_table, field)
: NULL,
arena);
// Clear out upb_Array* due to parent memcpy.
upb_Message_SetBaseField(clone, field, &cloned_array);
return true;
}
static bool upb_Clone_ExtensionValue(
const upb_MiniTableExtension* mini_table_ext, const upb_Extension* source,
upb_Extension* dest, upb_Arena* arena) {
dest->data = source->data;
return upb_Clone_MessageValue(
&dest->data, upb_MiniTableExtension_CType(mini_table_ext),
upb_MiniTableExtension_GetSubMessage(mini_table_ext), arena);
}
upb_Message* _upb_Message_Copy(upb_Message* dst, const upb_Message* src,
const upb_MiniTable* mini_table,
upb_Arena* arena) {
UPB_ASSERT(!upb_Message_IsFrozen(dst));
upb_StringView empty_string = upb_StringView_FromDataAndSize(NULL, 0);
// Only copy message area skipping upb_Message_Internal.
memcpy(dst + 1, src + 1, mini_table->UPB_PRIVATE(size) - sizeof(upb_Message));
for (int i = 0; i < upb_MiniTable_FieldCount(mini_table); ++i) {
const upb_MiniTableField* field =
upb_MiniTable_GetFieldByIndex(mini_table, i);
if (upb_MiniTableField_IsScalar(field)) {
switch (upb_MiniTableField_CType(field)) {
case kUpb_CType_Message: {
upb_TaggedMessagePtr tagged =
upb_Message_GetTaggedMessagePtr(src, field, NULL);
const upb_Message* sub_message =
UPB_PRIVATE(_upb_TaggedMessagePtr_GetMessage)(tagged);
if (sub_message != NULL) {
// If the message is currently in an unlinked, "empty" state we keep
// it that way, because we don't want to deal with decode options,
// decode status, or possible parse failure here.
bool is_empty = upb_TaggedMessagePtr_IsEmpty(tagged);
const upb_MiniTable* sub_message_table =
is_empty ? UPB_PRIVATE(_upb_MiniTable_Empty)()
: upb_MiniTable_GetSubMessageTable(mini_table, field);
upb_Message* dst_sub_message =
upb_Message_DeepClone(sub_message, sub_message_table, arena);
if (dst_sub_message == NULL) {
return NULL;
}
UPB_PRIVATE(_upb_Message_SetTaggedMessagePtr)
(dst, field,
UPB_PRIVATE(_upb_TaggedMessagePtr_Pack)(dst_sub_message,
is_empty));
}
} break;
case kUpb_CType_String:
case kUpb_CType_Bytes: {
upb_StringView str = upb_Message_GetString(src, field, empty_string);
if (str.size != 0) {
if (!upb_Message_SetString(
dst, field, upb_Clone_StringView(str, arena), arena)) {
return NULL;
}
}
} break;
default:
// Scalar, already copied.
break;
}
} else {
if (upb_MiniTableField_IsMap(field)) {
const upb_Map* map = upb_Message_GetMap(src, field);
if (map != NULL) {
if (!upb_Message_Map_DeepClone(map, mini_table, field, dst, arena)) {
return NULL;
}
}
} else {
const upb_Array* array = upb_Message_GetArray(src, field);
if (array != NULL) {
if (!upb_Message_Array_DeepClone(array, mini_table, field, dst,
arena)) {
return NULL;
}
}
}
}
}
// Clone extensions.
size_t ext_count;
const upb_Extension* ext = UPB_PRIVATE(_upb_Message_Getexts)(src, &ext_count);
for (size_t i = 0; i < ext_count; ++i) {
const upb_Extension* msg_ext = &ext[i];
const upb_MiniTableField* field = &msg_ext->ext->UPB_PRIVATE(field);
upb_Extension* dst_ext = UPB_PRIVATE(_upb_Message_GetOrCreateExtension)(
dst, msg_ext->ext, arena);
if (!dst_ext) return NULL;
if (upb_MiniTableField_IsScalar(field)) {
if (!upb_Clone_ExtensionValue(msg_ext->ext, msg_ext, dst_ext, arena)) {
return NULL;
}
} else {
upb_Array* msg_array = (upb_Array*)msg_ext->data.array_val;
UPB_ASSERT(msg_array);
upb_Array* cloned_array = upb_Array_DeepClone(
msg_array, upb_MiniTableField_CType(field),
upb_MiniTableExtension_GetSubMessage(msg_ext->ext), arena);
if (!cloned_array) {
return NULL;
}
dst_ext->data.array_val = cloned_array;
}
}
// Clone unknowns.
uintptr_t iter = kUpb_Message_UnknownBegin;
upb_StringView unknowns;
while (upb_Message_NextUnknown(src, &unknowns, &iter)) {
// Make a copy into destination arena.
if (!UPB_PRIVATE(_upb_Message_AddUnknown)(dst, unknowns.data, unknowns.size,
arena)) {
return NULL;
}
}
return dst;
}
bool upb_Message_DeepCopy(upb_Message* dst, const upb_Message* src,
const upb_MiniTable* mini_table, upb_Arena* arena) {
UPB_ASSERT(!upb_Message_IsFrozen(dst));
upb_Message_Clear(dst, mini_table);
return _upb_Message_Copy(dst, src, mini_table, arena) != NULL;
}
// Deep clones a message using the provided target arena.
//
// Returns NULL on failure.
upb_Message* upb_Message_DeepClone(const upb_Message* msg,
const upb_MiniTable* m, upb_Arena* arena) {
upb_Message* clone = upb_Message_New(m, arena);
return _upb_Message_Copy(clone, msg, m, arena);
}
// Performs a shallow copy. TODO: Extend to handle unknown fields.
void upb_Message_ShallowCopy(upb_Message* dst, const upb_Message* src,
const upb_MiniTable* m) {
UPB_ASSERT(!upb_Message_IsFrozen(dst));
memcpy(dst, src, m->UPB_PRIVATE(size));
}
// Performs a shallow clone. Ignores unknown fields.
upb_Message* upb_Message_ShallowClone(const upb_Message* msg,
const upb_MiniTable* m,
upb_Arena* arena) {
upb_Message* clone = upb_Message_New(m, arena);
upb_Message_ShallowCopy(clone, msg, m);
return clone;
}
#include "stddef.h"
// Must be last.
bool upb_Message_MergeFrom(upb_Message* dst, const upb_Message* src,
const upb_MiniTable* mt,
const upb_ExtensionRegistry* extreg,
upb_Arena* arena) {
char* buf = NULL;
size_t size = 0;
// This tmp arena is used to hold the bytes for `src` serialized. This bends
// the typical "no hidden allocations" design of upb, but under a properly
// optimized implementation this extra allocation would not be necessary and
// so we don't want to unnecessarily have the bad API or bloat the passed-in
// arena with this very-short-term allocation.
upb_Arena* encode_arena = upb_Arena_New();
upb_EncodeStatus e_status = upb_Encode(src, mt, 0, encode_arena, &buf, &size);
if (e_status != kUpb_EncodeStatus_Ok) {
upb_Arena_Free(encode_arena);
return false;
}
upb_DecodeStatus d_status = upb_Decode(buf, size, dst, mt, extreg, 0, arena);
if (d_status != kUpb_DecodeStatus_Ok) {
upb_Arena_Free(encode_arena);
return false;
}
upb_Arena_Free(encode_arena);
return true;
}
#include <stddef.h>
#include <stdint.h>
// Must be last.
typedef struct {
upb_MdDecoder base;
upb_Arena* arena;
upb_MiniTableEnum* enum_table;
uint32_t enum_value_count;
uint32_t enum_data_count;
uint32_t enum_data_capacity;
} upb_MdEnumDecoder;
static size_t upb_MiniTableEnum_Size(size_t count) {
return UPB_SIZEOF_FLEX(upb_MiniTableEnum, UPB_PRIVATE(data), count);
}
static upb_MiniTableEnum* _upb_MiniTable_AddEnumDataMember(upb_MdEnumDecoder* d,
uint32_t val) {
if (d->enum_data_count == d->enum_data_capacity) {
size_t old_sz = upb_MiniTableEnum_Size(d->enum_data_capacity);
d->enum_data_capacity = UPB_MAX(2, d->enum_data_capacity * 2);
size_t new_sz = upb_MiniTableEnum_Size(d->enum_data_capacity);
d->enum_table = upb_Arena_Realloc(d->arena, d->enum_table, old_sz, new_sz);
upb_MdDecoder_CheckOutOfMemory(&d->base, d->enum_table);
}
d->enum_table->UPB_PRIVATE(data)[d->enum_data_count++] = val;
return d->enum_table;
}
static void upb_MiniTableEnum_BuildValue(upb_MdEnumDecoder* d, uint32_t val) {
upb_MiniTableEnum* table = d->enum_table;
d->enum_value_count++;
if (table->UPB_PRIVATE(value_count) ||
(val > 512 && d->enum_value_count < val / 32)) {
if (table->UPB_PRIVATE(value_count) == 0) {
UPB_ASSERT(d->enum_data_count == table->UPB_PRIVATE(mask_limit) / 32);
}
table = _upb_MiniTable_AddEnumDataMember(d, val);
table->UPB_PRIVATE(value_count)++;
} else {
uint32_t new_mask_limit = ((val / 32) + 1) * 32;
while (table->UPB_PRIVATE(mask_limit) < new_mask_limit) {
table = _upb_MiniTable_AddEnumDataMember(d, 0);
table->UPB_PRIVATE(mask_limit) += 32;
}
table->UPB_PRIVATE(data)[val / 32] |= 1ULL << (val % 32);
}
}
static upb_MiniTableEnum* upb_MtDecoder_DoBuildMiniTableEnum(
upb_MdEnumDecoder* d, const char* data, size_t len) {
// If the string is non-empty then it must begin with a version tag.
if (len) {
if (*data != kUpb_EncodedVersion_EnumV1) {
upb_MdDecoder_ErrorJmp(&d->base, "Invalid enum version: %c", *data);
}
data++;
len--;
}
upb_MdDecoder_CheckOutOfMemory(&d->base, d->enum_table);
// Guarantee at least 64 bits of mask without checking mask size.
d->enum_table->UPB_PRIVATE(mask_limit) = 64;
d->enum_table = _upb_MiniTable_AddEnumDataMember(d, 0);
d->enum_table = _upb_MiniTable_AddEnumDataMember(d, 0);
d->enum_table->UPB_PRIVATE(value_count) = 0;
const char* ptr = data;
uint32_t base = 0;
while (ptr < d->base.end) {
char ch = *ptr++;
if (ch <= kUpb_EncodedValue_MaxEnumMask) {
uint32_t mask = _upb_FromBase92(ch);
for (int i = 0; i < 5; i++, base++, mask >>= 1) {
if (mask & 1) upb_MiniTableEnum_BuildValue(d, base);
}
} else if (kUpb_EncodedValue_MinSkip <= ch &&
ch <= kUpb_EncodedValue_MaxSkip) {
uint32_t skip;
ptr = upb_MdDecoder_DecodeBase92Varint(&d->base, ptr, ch,
kUpb_EncodedValue_MinSkip,
kUpb_EncodedValue_MaxSkip, &skip);
base += skip;
} else {
upb_MdDecoder_ErrorJmp(&d->base, "Unexpected character: %c", ch);
}
}
return d->enum_table;
}
static upb_MiniTableEnum* upb_MtDecoder_BuildMiniTableEnum(
upb_MdEnumDecoder* const decoder, const char* const data,
size_t const len) {
if (UPB_SETJMP(decoder->base.err) != 0) return NULL;
return upb_MtDecoder_DoBuildMiniTableEnum(decoder, data, len);
}
upb_MiniTableEnum* upb_MiniTableEnum_Build(const char* data, size_t len,
upb_Arena* arena,
upb_Status* status) {
upb_MdEnumDecoder decoder = {
.base =
{
.end = UPB_PTRADD(data, len),
.status = status,
},
.arena = arena,
.enum_table = upb_Arena_Malloc(arena, upb_MiniTableEnum_Size(2)),
.enum_value_count = 0,
.enum_data_count = 0,
.enum_data_capacity = 1,
};
return upb_MtDecoder_BuildMiniTableEnum(&decoder, data, len);
}
#include <inttypes.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
// Must be last.
// We reserve unused hasbits to make room for upb_Message fields.
#define kUpb_Reserved_Hasbytes sizeof(struct upb_Message)
// 64 is the first hasbit that we currently use.
#define kUpb_Reserved_Hasbits (kUpb_Reserved_Hasbytes * 8)
// Note: we sort by this number when calculating layout order.
typedef enum {
kUpb_LayoutItemType_OneofCase, // Oneof case.
kUpb_LayoutItemType_OneofField, // Oneof field data.
kUpb_LayoutItemType_Field, // Non-oneof field data.
kUpb_LayoutItemType_Max = kUpb_LayoutItemType_Field,
} upb_LayoutItemType;
#define kUpb_LayoutItem_IndexSentinel ((uint16_t) - 1)
typedef struct {
// Index of the corresponding field. When this is a oneof field, the field's
// offset will be the index of the next field in a linked list.
uint16_t field_index;
uint16_t offset;
upb_FieldRep rep;
upb_LayoutItemType type;
} upb_LayoutItem;
typedef struct {
upb_LayoutItem* data;
size_t size;
size_t capacity;
} upb_LayoutItemVector;
typedef struct {
upb_MdDecoder base;
upb_MiniTable* table;
upb_MiniTableField* fields;
upb_MiniTablePlatform platform;
upb_LayoutItemVector vec;
upb_Arena* arena;
} upb_MtDecoder;
// In each field's offset, we temporarily store a presence classifier:
enum PresenceClass {
kNoPresence = 0,
kHasbitPresence = 1,
kRequiredPresence = 2,
kOneofBase = 3,
// Negative values refer to a specific oneof with that number. Positive
// values >= kOneofBase indicate that this field is in a oneof, and specify
// the next field in this oneof's linked list.
};
static bool upb_MtDecoder_FieldIsPackable(upb_MiniTableField* field) {
return (field->UPB_PRIVATE(mode) & kUpb_FieldMode_Array) &&
upb_FieldType_IsPackable(field->UPB_PRIVATE(descriptortype));
}
typedef struct {
uint16_t submsg_count;
uint16_t subenum_count;
} upb_SubCounts;
static void upb_MiniTable_SetTypeAndSub(upb_MiniTableField* field,
upb_FieldType type,
upb_SubCounts* sub_counts,
uint64_t msg_modifiers,
bool is_proto3_enum) {
if (is_proto3_enum) {
UPB_ASSERT(type == kUpb_FieldType_Enum);
type = kUpb_FieldType_Int32;
field->UPB_PRIVATE(mode) |= kUpb_LabelFlags_IsAlternate;
} else if (type == kUpb_FieldType_String &&
!(msg_modifiers & kUpb_MessageModifier_ValidateUtf8)) {
type = kUpb_FieldType_Bytes;
field->UPB_PRIVATE(mode) |= kUpb_LabelFlags_IsAlternate;
}
field->UPB_PRIVATE(descriptortype) = type;
if (upb_MtDecoder_FieldIsPackable(field) &&
(msg_modifiers & kUpb_MessageModifier_DefaultIsPacked)) {
field->UPB_PRIVATE(mode) |= kUpb_LabelFlags_IsPacked;
}
if (type == kUpb_FieldType_Message || type == kUpb_FieldType_Group) {
field->UPB_PRIVATE(submsg_index) = sub_counts->submsg_count++;
} else if (type == kUpb_FieldType_Enum) {
// We will need to update this later once we know the total number of
// submsg fields.
field->UPB_PRIVATE(submsg_index) = sub_counts->subenum_count++;
} else {
field->UPB_PRIVATE(submsg_index) = kUpb_NoSub;
}
}
static const char kUpb_EncodedToType[] = {
[kUpb_EncodedType_Double] = kUpb_FieldType_Double,
[kUpb_EncodedType_Float] = kUpb_FieldType_Float,
[kUpb_EncodedType_Int64] = kUpb_FieldType_Int64,
[kUpb_EncodedType_UInt64] = kUpb_FieldType_UInt64,
[kUpb_EncodedType_Int32] = kUpb_FieldType_Int32,
[kUpb_EncodedType_Fixed64] = kUpb_FieldType_Fixed64,
[kUpb_EncodedType_Fixed32] = kUpb_FieldType_Fixed32,
[kUpb_EncodedType_Bool] = kUpb_FieldType_Bool,
[kUpb_EncodedType_String] = kUpb_FieldType_String,
[kUpb_EncodedType_Group] = kUpb_FieldType_Group,
[kUpb_EncodedType_Message] = kUpb_FieldType_Message,
[kUpb_EncodedType_Bytes] = kUpb_FieldType_Bytes,
[kUpb_EncodedType_UInt32] = kUpb_FieldType_UInt32,
[kUpb_EncodedType_OpenEnum] = kUpb_FieldType_Enum,
[kUpb_EncodedType_SFixed32] = kUpb_FieldType_SFixed32,
[kUpb_EncodedType_SFixed64] = kUpb_FieldType_SFixed64,
[kUpb_EncodedType_SInt32] = kUpb_FieldType_SInt32,
[kUpb_EncodedType_SInt64] = kUpb_FieldType_SInt64,
[kUpb_EncodedType_ClosedEnum] = kUpb_FieldType_Enum,
};
static void upb_MiniTable_SetField(upb_MtDecoder* d, uint8_t ch,
upb_MiniTableField* field,
uint64_t msg_modifiers,
upb_SubCounts* sub_counts) {
static const char kUpb_EncodedToFieldRep[] = {
[kUpb_EncodedType_Double] = kUpb_FieldRep_8Byte,
[kUpb_EncodedType_Float] = kUpb_FieldRep_4Byte,
[kUpb_EncodedType_Int64] = kUpb_FieldRep_8Byte,
[kUpb_EncodedType_UInt64] = kUpb_FieldRep_8Byte,
[kUpb_EncodedType_Int32] = kUpb_FieldRep_4Byte,
[kUpb_EncodedType_Fixed64] = kUpb_FieldRep_8Byte,
[kUpb_EncodedType_Fixed32] = kUpb_FieldRep_4Byte,
[kUpb_EncodedType_Bool] = kUpb_FieldRep_1Byte,
[kUpb_EncodedType_String] = kUpb_FieldRep_StringView,
[kUpb_EncodedType_Bytes] = kUpb_FieldRep_StringView,
[kUpb_EncodedType_UInt32] = kUpb_FieldRep_4Byte,
[kUpb_EncodedType_OpenEnum] = kUpb_FieldRep_4Byte,
[kUpb_EncodedType_SFixed32] = kUpb_FieldRep_4Byte,
[kUpb_EncodedType_SFixed64] = kUpb_FieldRep_8Byte,
[kUpb_EncodedType_SInt32] = kUpb_FieldRep_4Byte,
[kUpb_EncodedType_SInt64] = kUpb_FieldRep_8Byte,
[kUpb_EncodedType_ClosedEnum] = kUpb_FieldRep_4Byte,
};
char pointer_rep = d->platform == kUpb_MiniTablePlatform_32Bit
? kUpb_FieldRep_4Byte
: kUpb_FieldRep_8Byte;
int8_t type = _upb_FromBase92(ch);
if (ch >= _upb_ToBase92(kUpb_EncodedType_RepeatedBase)) {
type -= kUpb_EncodedType_RepeatedBase;
field->UPB_PRIVATE(mode) = kUpb_FieldMode_Array;
field->UPB_PRIVATE(mode) |= pointer_rep << kUpb_FieldRep_Shift;
field->UPB_PRIVATE(offset) = kNoPresence;
} else {
field->UPB_PRIVATE(mode) = kUpb_FieldMode_Scalar;
field->UPB_PRIVATE(offset) = kHasbitPresence;
if (type == kUpb_EncodedType_Group || type == kUpb_EncodedType_Message) {
field->UPB_PRIVATE(mode) |= pointer_rep << kUpb_FieldRep_Shift;
} else if ((unsigned long)type >= sizeof(kUpb_EncodedToFieldRep)) {
upb_MdDecoder_ErrorJmp(&d->base, "Invalid field type: %d", (int)type);
} else {
field->UPB_PRIVATE(mode) |= kUpb_EncodedToFieldRep[type]
<< kUpb_FieldRep_Shift;
}
}
if ((unsigned long)type >= sizeof(kUpb_EncodedToType)) {
upb_MdDecoder_ErrorJmp(&d->base, "Invalid field type: %d", (int)type);
}
upb_MiniTable_SetTypeAndSub(field, kUpb_EncodedToType[type], sub_counts,
msg_modifiers, type == kUpb_EncodedType_OpenEnum);
}
static void upb_MtDecoder_ModifyField(upb_MtDecoder* d,
uint32_t message_modifiers,
uint32_t field_modifiers,
upb_MiniTableField* field) {
if (field_modifiers & kUpb_EncodedFieldModifier_FlipPacked) {
if (!upb_MtDecoder_FieldIsPackable(field)) {
upb_MdDecoder_ErrorJmp(&d->base,
"Cannot flip packed on unpackable field %" PRIu32,
upb_MiniTableField_Number(field));
}
field->UPB_PRIVATE(mode) ^= kUpb_LabelFlags_IsPacked;
}
if (field_modifiers & kUpb_EncodedFieldModifier_FlipValidateUtf8) {
if (field->UPB_PRIVATE(descriptortype) != kUpb_FieldType_Bytes ||
!(field->UPB_PRIVATE(mode) & kUpb_LabelFlags_IsAlternate)) {
upb_MdDecoder_ErrorJmp(&d->base,
"Cannot flip ValidateUtf8 on field %" PRIu32
", type=%d, mode=%d",
upb_MiniTableField_Number(field),
(int)field->UPB_PRIVATE(descriptortype),
(int)field->UPB_PRIVATE(mode));
}
field->UPB_PRIVATE(descriptortype) = kUpb_FieldType_String;
field->UPB_PRIVATE(mode) &= ~kUpb_LabelFlags_IsAlternate;
}
bool singular = field_modifiers & kUpb_EncodedFieldModifier_IsProto3Singular;
bool required = field_modifiers & kUpb_EncodedFieldModifier_IsRequired;
// Validate.
if ((singular || required) && field->UPB_PRIVATE(offset) != kHasbitPresence) {
upb_MdDecoder_ErrorJmp(&d->base,
"Invalid modifier(s) for repeated field %" PRIu32,
upb_MiniTableField_Number(field));
}
if (singular && required) {
upb_MdDecoder_ErrorJmp(
&d->base, "Field %" PRIu32 " cannot be both singular and required",
upb_MiniTableField_Number(field));
}
if (singular && upb_MiniTableField_IsSubMessage(field)) {
upb_MdDecoder_ErrorJmp(&d->base,
"Field %" PRIu32 " cannot be a singular submessage",
upb_MiniTableField_Number(field));
}
if (singular) field->UPB_PRIVATE(offset) = kNoPresence;
if (required) {
field->UPB_PRIVATE(offset) = kRequiredPresence;
}
}
static void upb_MtDecoder_PushItem(upb_MtDecoder* d, upb_LayoutItem item) {
if (d->vec.size == d->vec.capacity) {
size_t new_cap = UPB_MAX(8, d->vec.size * 2);
d->vec.data = realloc(d->vec.data, new_cap * sizeof(*d->vec.data));
upb_MdDecoder_CheckOutOfMemory(&d->base, d->vec.data);
d->vec.capacity = new_cap;
}
d->vec.data[d->vec.size++] = item;
}
static void upb_MtDecoder_PushOneof(upb_MtDecoder* d, upb_LayoutItem item) {
if (item.field_index == kUpb_LayoutItem_IndexSentinel) {
upb_MdDecoder_ErrorJmp(&d->base, "Empty oneof");
}
item.field_index -= kOneofBase;
// Push oneof data.
item.type = kUpb_LayoutItemType_OneofField;
upb_MtDecoder_PushItem(d, item);
// Push oneof case.
item.rep = kUpb_FieldRep_4Byte; // Field Number.
item.type = kUpb_LayoutItemType_OneofCase;
upb_MtDecoder_PushItem(d, item);
}
static size_t upb_MtDecoder_SizeOfRep(upb_FieldRep rep,
upb_MiniTablePlatform platform) {
static const uint8_t kRepToSize32[] = {
[kUpb_FieldRep_1Byte] = 1,
[kUpb_FieldRep_4Byte] = 4,
[kUpb_FieldRep_StringView] = 8,
[kUpb_FieldRep_8Byte] = 8,
};
static const uint8_t kRepToSize64[] = {
[kUpb_FieldRep_1Byte] = 1,
[kUpb_FieldRep_4Byte] = 4,
[kUpb_FieldRep_StringView] = 16,
[kUpb_FieldRep_8Byte] = 8,
};
UPB_ASSERT(sizeof(upb_StringView) ==
UPB_SIZE(kRepToSize32, kRepToSize64)[kUpb_FieldRep_StringView]);
return platform == kUpb_MiniTablePlatform_32Bit ? kRepToSize32[rep]
: kRepToSize64[rep];
}
static size_t upb_MtDecoder_AlignOfRep(upb_FieldRep rep,
upb_MiniTablePlatform platform) {
static const uint8_t kRepToAlign32[] = {
[kUpb_FieldRep_1Byte] = 1,
[kUpb_FieldRep_4Byte] = 4,
[kUpb_FieldRep_StringView] = 4,
[kUpb_FieldRep_8Byte] = 8,
};
static const uint8_t kRepToAlign64[] = {
[kUpb_FieldRep_1Byte] = 1,
[kUpb_FieldRep_4Byte] = 4,
[kUpb_FieldRep_StringView] = 8,
[kUpb_FieldRep_8Byte] = 8,
};
UPB_ASSERT(UPB_ALIGN_OF(upb_StringView) ==
UPB_SIZE(kRepToAlign32, kRepToAlign64)[kUpb_FieldRep_StringView]);
return platform == kUpb_MiniTablePlatform_32Bit ? kRepToAlign32[rep]
: kRepToAlign64[rep];
}
static const char* upb_MtDecoder_DecodeOneofField(upb_MtDecoder* d,
const char* ptr,
char first_ch,
upb_LayoutItem* item) {
uint32_t field_num;
ptr = upb_MdDecoder_DecodeBase92Varint(
&d->base, ptr, first_ch, kUpb_EncodedValue_MinOneofField,
kUpb_EncodedValue_MaxOneofField, &field_num);
upb_MiniTableField* f =
(void*)upb_MiniTable_FindFieldByNumber(d->table, field_num);
if (!f) {
upb_MdDecoder_ErrorJmp(&d->base,
"Couldn't add field number %" PRIu32
" to oneof, no such field number.",
field_num);
}
if (f->UPB_PRIVATE(offset) != kHasbitPresence) {
upb_MdDecoder_ErrorJmp(
&d->base,
"Cannot add repeated, required, or singular field %" PRIu32
" to oneof.",
field_num);
}
// Oneof storage must be large enough to accommodate the largest member.
int rep = f->UPB_PRIVATE(mode) >> kUpb_FieldRep_Shift;
if (upb_MtDecoder_SizeOfRep(rep, d->platform) >
upb_MtDecoder_SizeOfRep(item->rep, d->platform)) {
item->rep = rep;
}
// Prepend this field to the linked list.
f->UPB_PRIVATE(offset) = item->field_index;
item->field_index = (f - d->fields) + kOneofBase;
return ptr;
}
static const char* upb_MtDecoder_DecodeOneofs(upb_MtDecoder* d,
const char* ptr) {
upb_LayoutItem item = {.rep = 0,
.field_index = kUpb_LayoutItem_IndexSentinel};
while (ptr < d->base.end) {
char ch = *ptr++;
if (ch == kUpb_EncodedValue_FieldSeparator) {
// Field separator, no action needed.
} else if (ch == kUpb_EncodedValue_OneofSeparator) {
// End of oneof.
upb_MtDecoder_PushOneof(d, item);
item.field_index = kUpb_LayoutItem_IndexSentinel; // Move to next oneof.
} else {
ptr = upb_MtDecoder_DecodeOneofField(d, ptr, ch, &item);
}
}
// Push final oneof.
upb_MtDecoder_PushOneof(d, item);
return ptr;
}
static const char* upb_MtDecoder_ParseModifier(upb_MtDecoder* d,
const char* ptr, char first_ch,
upb_MiniTableField* last_field,
uint64_t* msg_modifiers) {
uint32_t mod;
ptr = upb_MdDecoder_DecodeBase92Varint(&d->base, ptr, first_ch,
kUpb_EncodedValue_MinModifier,
kUpb_EncodedValue_MaxModifier, &mod);
if (last_field) {
upb_MtDecoder_ModifyField(d, *msg_modifiers, mod, last_field);
} else {
if (!d->table) {
upb_MdDecoder_ErrorJmp(&d->base,
"Extensions cannot have message modifiers");
}
*msg_modifiers = mod;
}
return ptr;
}
static void upb_MtDecoder_AllocateSubs(upb_MtDecoder* d,
upb_SubCounts sub_counts) {
uint32_t total_count = sub_counts.submsg_count + sub_counts.subenum_count;
size_t subs_bytes = sizeof(*d->table->UPB_PRIVATE(subs)) * total_count;
size_t ptrs_bytes = sizeof(upb_MiniTable*) * sub_counts.submsg_count;
upb_MiniTableSubInternal* subs = upb_Arena_Malloc(d->arena, subs_bytes);
const upb_MiniTable** subs_ptrs = upb_Arena_Malloc(d->arena, ptrs_bytes);
upb_MdDecoder_CheckOutOfMemory(&d->base, subs);
upb_MdDecoder_CheckOutOfMemory(&d->base, subs_ptrs);
uint32_t i = 0;
for (; i < sub_counts.submsg_count; i++) {
subs_ptrs[i] = UPB_PRIVATE(_upb_MiniTable_Empty)();
subs[i].UPB_PRIVATE(submsg) = &subs_ptrs[i];
}
if (sub_counts.subenum_count) {
upb_MiniTableField* f = d->fields;
upb_MiniTableField* end_f = f + d->table->UPB_PRIVATE(field_count);
for (; f < end_f; f++) {
if (f->UPB_PRIVATE(descriptortype) == kUpb_FieldType_Enum) {
f->UPB_PRIVATE(submsg_index) += sub_counts.submsg_count;
}
}
for (; i < sub_counts.submsg_count + sub_counts.subenum_count; i++) {
subs[i].UPB_PRIVATE(subenum) = NULL;
}
}
d->table->UPB_PRIVATE(subs) = subs;
}
static const char* upb_MtDecoder_Parse(upb_MtDecoder* d, const char* ptr,
size_t len, void* fields,
size_t field_size, uint16_t* field_count,
upb_SubCounts* sub_counts) {
uint64_t msg_modifiers = 0;
uint32_t last_field_number = 0;
upb_MiniTableField* last_field = NULL;
bool need_dense_below = d->table != NULL;
d->base.end = UPB_PTRADD(ptr, len);
while (ptr < d->base.end) {
char ch = *ptr++;
if (ch <= kUpb_EncodedValue_MaxField) {
if (!d->table && last_field) {
// For extensions, consume only a single field and then return.
return --ptr;
}
upb_MiniTableField* field = fields;
*field_count += 1;
fields = (char*)fields + field_size;
field->UPB_PRIVATE(number) = ++last_field_number;
last_field = field;
upb_MiniTable_SetField(d, ch, field, msg_modifiers, sub_counts);
} else if (kUpb_EncodedValue_MinModifier <= ch &&
ch <= kUpb_EncodedValue_MaxModifier) {
ptr = upb_MtDecoder_ParseModifier(d, ptr, ch, last_field, &msg_modifiers);
if (msg_modifiers & kUpb_MessageModifier_IsExtendable) {
d->table->UPB_PRIVATE(ext) |= kUpb_ExtMode_Extendable;
}
} else if (ch == kUpb_EncodedValue_End) {
if (!d->table) {
upb_MdDecoder_ErrorJmp(&d->base, "Extensions cannot have oneofs.");
}
ptr = upb_MtDecoder_DecodeOneofs(d, ptr);
} else if (kUpb_EncodedValue_MinSkip <= ch &&
ch <= kUpb_EncodedValue_MaxSkip) {
if (need_dense_below) {
d->table->UPB_PRIVATE(dense_below) = d->table->UPB_PRIVATE(field_count);
need_dense_below = false;
}
uint32_t skip;
ptr = upb_MdDecoder_DecodeBase92Varint(&d->base, ptr, ch,
kUpb_EncodedValue_MinSkip,
kUpb_EncodedValue_MaxSkip, &skip);
last_field_number += skip;
last_field_number--; // Next field seen will increment.
} else {
upb_MdDecoder_ErrorJmp(&d->base, "Invalid char: %c", ch);
}
}
if (need_dense_below) {
d->table->UPB_PRIVATE(dense_below) = d->table->UPB_PRIVATE(field_count);
}
return ptr;
}
static void upb_MtDecoder_ParseMessage(upb_MtDecoder* d, const char* data,
size_t len) {
// Buffer length is an upper bound on the number of fields. We will return
// what we don't use.
d->fields = upb_Arena_Malloc(d->arena, sizeof(*d->fields) * len);
upb_MdDecoder_CheckOutOfMemory(&d->base, d->fields);
upb_SubCounts sub_counts = {0, 0};
d->table->UPB_PRIVATE(field_count) = 0;
d->table->UPB_PRIVATE(fields) = d->fields;
upb_MtDecoder_Parse(d, data, len, d->fields, sizeof(*d->fields),
&d->table->UPB_PRIVATE(field_count), &sub_counts);
upb_Arena_ShrinkLast(d->arena, d->fields, sizeof(*d->fields) * len,
sizeof(*d->fields) * d->table->UPB_PRIVATE(field_count));
d->table->UPB_PRIVATE(fields) = d->fields;
upb_MtDecoder_AllocateSubs(d, sub_counts);
}
static int upb_MtDecoder_CompareFields(const void* _a, const void* _b) {
const upb_LayoutItem* a = _a;
const upb_LayoutItem* b = _b;
// Currently we just sort by:
// 1. rep (smallest fields first)
// 2. type (oneof cases first)
// 2. field_index (smallest numbers first)
// The main goal of this is to reduce space lost to padding.
// Later we may have more subtle reasons to prefer a different ordering.
const int rep_bits = upb_Log2Ceiling(kUpb_FieldRep_Max);
const int type_bits = upb_Log2Ceiling(kUpb_LayoutItemType_Max);
const int idx_bits = (sizeof(a->field_index) * 8);
UPB_ASSERT(idx_bits + rep_bits + type_bits < 32);
#define UPB_COMBINE(rep, ty, idx) (((rep << type_bits) | ty) << idx_bits) | idx
uint32_t a_packed = UPB_COMBINE(a->rep, a->type, a->field_index);
uint32_t b_packed = UPB_COMBINE(b->rep, b->type, b->field_index);
UPB_ASSERT(a_packed != b_packed);
#undef UPB_COMBINE
return a_packed < b_packed ? -1 : 1;
}
static bool upb_MtDecoder_SortLayoutItems(upb_MtDecoder* d) {
// Add items for all non-oneof fields (oneofs were already added).
int n = d->table->UPB_PRIVATE(field_count);
for (int i = 0; i < n; i++) {
upb_MiniTableField* f = &d->fields[i];
if (f->UPB_PRIVATE(offset) >= kOneofBase) continue;
upb_LayoutItem item = {.field_index = i,
.rep = f->UPB_PRIVATE(mode) >> kUpb_FieldRep_Shift,
.type = kUpb_LayoutItemType_Field};
upb_MtDecoder_PushItem(d, item);
}
if (d->vec.size) {
qsort(d->vec.data, d->vec.size, sizeof(*d->vec.data),
upb_MtDecoder_CompareFields);
}
return true;
}
static size_t upb_MiniTable_DivideRoundUp(size_t n, size_t d) {
return (n + d - 1) / d;
}
static void upb_MtDecoder_AssignHasbits(upb_MtDecoder* d) {
upb_MiniTable* ret = d->table;
int n = ret->UPB_PRIVATE(field_count);
size_t last_hasbit = kUpb_Reserved_Hasbits - 1;
// First assign required fields, which must have the lowest hasbits.
for (int i = 0; i < n; i++) {
upb_MiniTableField* field =
(upb_MiniTableField*)&ret->UPB_PRIVATE(fields)[i];
if (field->UPB_PRIVATE(offset) == kRequiredPresence) {
field->presence = ++last_hasbit;
} else if (field->UPB_PRIVATE(offset) == kNoPresence) {
field->presence = 0;
}
}
if (last_hasbit > kUpb_Reserved_Hasbits + 63) {
upb_MdDecoder_ErrorJmp(&d->base, "Too many required fields");
}
ret->UPB_PRIVATE(required_count) = last_hasbit - (kUpb_Reserved_Hasbits - 1);
// Next assign non-required hasbit fields.
for (int i = 0; i < n; i++) {
upb_MiniTableField* field =
(upb_MiniTableField*)&ret->UPB_PRIVATE(fields)[i];
if (field->UPB_PRIVATE(offset) == kHasbitPresence) {
field->presence = ++last_hasbit;
}
}
ret->UPB_PRIVATE(size) =
last_hasbit ? upb_MiniTable_DivideRoundUp(last_hasbit + 1, 8) : 0;
}
static size_t upb_MtDecoder_Place(upb_MtDecoder* d, upb_FieldRep rep) {
size_t size = upb_MtDecoder_SizeOfRep(rep, d->platform);
size_t align = upb_MtDecoder_AlignOfRep(rep, d->platform);
size_t ret = UPB_ALIGN_UP(d->table->UPB_PRIVATE(size), align);
static const size_t max = UINT16_MAX;
size_t new_size = ret + size;
if (new_size > max) {
upb_MdDecoder_ErrorJmp(
&d->base, "Message size exceeded maximum size of %zu bytes", max);
}
d->table->UPB_PRIVATE(size) = new_size;
return ret;
}
static void upb_MtDecoder_AssignOffsets(upb_MtDecoder* d) {
upb_LayoutItem* end = UPB_PTRADD(d->vec.data, d->vec.size);
// Compute offsets.
for (upb_LayoutItem* item = d->vec.data; item < end; item++) {
item->offset = upb_MtDecoder_Place(d, item->rep);
}
// Assign oneof case offsets. We must do these first, since assigning
// actual offsets will overwrite the links of the linked list.
for (upb_LayoutItem* item = d->vec.data; item < end; item++) {
if (item->type != kUpb_LayoutItemType_OneofCase) continue;
upb_MiniTableField* f = &d->fields[item->field_index];
while (true) {
f->presence = ~item->offset;
if (f->UPB_PRIVATE(offset) == kUpb_LayoutItem_IndexSentinel) break;
UPB_ASSERT(f->UPB_PRIVATE(offset) - kOneofBase <
d->table->UPB_PRIVATE(field_count));
f = &d->fields[f->UPB_PRIVATE(offset) - kOneofBase];
}
}
// Assign offsets.
for (upb_LayoutItem* item = d->vec.data; item < end; item++) {
upb_MiniTableField* f = &d->fields[item->field_index];
switch (item->type) {
case kUpb_LayoutItemType_OneofField:
while (true) {
uint16_t next_offset = f->UPB_PRIVATE(offset);
f->UPB_PRIVATE(offset) = item->offset;
if (next_offset == kUpb_LayoutItem_IndexSentinel) break;
f = &d->fields[next_offset - kOneofBase];
}
break;
case kUpb_LayoutItemType_Field:
f->UPB_PRIVATE(offset) = item->offset;
break;
default:
break;
}
}
// The fasttable parser (supported on 64-bit only) depends on this being a
// multiple of 8 in order to satisfy UPB_MALLOC_ALIGN, which is also 8.
//
// On 32-bit we could potentially make this smaller, but there is no
// compelling reason to optimize this right now.
d->table->UPB_PRIVATE(size) = UPB_ALIGN_UP(d->table->UPB_PRIVATE(size), 8);
}
static void upb_MtDecoder_ValidateEntryField(upb_MtDecoder* d,
const upb_MiniTableField* f,
uint32_t expected_num) {
const char* name = expected_num == 1 ? "key" : "val";
const uint32_t f_number = upb_MiniTableField_Number(f);
if (f_number != expected_num) {
upb_MdDecoder_ErrorJmp(&d->base,
"map %s did not have expected number (%d vs %d)",
name, expected_num, f_number);
}
if (!upb_MiniTableField_IsScalar(f)) {
upb_MdDecoder_ErrorJmp(
&d->base, "map %s cannot be repeated or map, or be in oneof", name);
}
uint32_t not_ok_types;
if (expected_num == 1) {
not_ok_types = (1 << kUpb_FieldType_Float) | (1 << kUpb_FieldType_Double) |
(1 << kUpb_FieldType_Message) | (1 << kUpb_FieldType_Group) |
(1 << kUpb_FieldType_Bytes) | (1 << kUpb_FieldType_Enum);
} else {
not_ok_types = 1 << kUpb_FieldType_Group;
}
if ((1 << upb_MiniTableField_Type(f)) & not_ok_types) {
upb_MdDecoder_ErrorJmp(&d->base, "map %s cannot have type %d", name,
(int)f->UPB_PRIVATE(descriptortype));
}
}
static void upb_MtDecoder_ParseMap(upb_MtDecoder* d, const char* data,
size_t len) {
upb_MtDecoder_ParseMessage(d, data, len);
upb_MtDecoder_AssignHasbits(d);
if (UPB_UNLIKELY(d->table->UPB_PRIVATE(field_count) != 2)) {
upb_MdDecoder_ErrorJmp(&d->base, "%hu fields in map",
d->table->UPB_PRIVATE(field_count));
UPB_UNREACHABLE();
}
upb_LayoutItem* end = UPB_PTRADD(d->vec.data, d->vec.size);
for (upb_LayoutItem* item = d->vec.data; item < end; item++) {
if (item->type == kUpb_LayoutItemType_OneofCase) {
upb_MdDecoder_ErrorJmp(&d->base, "Map entry cannot have oneof");
}
}
upb_MtDecoder_ValidateEntryField(d, &d->table->UPB_PRIVATE(fields)[0], 1);
upb_MtDecoder_ValidateEntryField(d, &d->table->UPB_PRIVATE(fields)[1], 2);
d->fields[0].UPB_PRIVATE(offset) = offsetof(upb_MapEntry, k);
d->fields[1].UPB_PRIVATE(offset) = offsetof(upb_MapEntry, v);
d->table->UPB_PRIVATE(size) = sizeof(upb_MapEntry);
// Map entries have a special bit set to signal it's a map entry, used in
// upb_MiniTable_SetSubMessage() below.
d->table->UPB_PRIVATE(ext) |= kUpb_ExtMode_IsMapEntry;
}
static void upb_MtDecoder_ParseMessageSet(upb_MtDecoder* d, const char* data,
size_t len) {
if (len > 0) {
upb_MdDecoder_ErrorJmp(&d->base, "Invalid message set encode length: %zu",
len);
}
upb_MiniTable* ret = d->table;
ret->UPB_PRIVATE(size) = kUpb_Reserved_Hasbytes;
ret->UPB_PRIVATE(field_count) = 0;
ret->UPB_PRIVATE(ext) = kUpb_ExtMode_IsMessageSet;
ret->UPB_PRIVATE(dense_below) = 0;
ret->UPB_PRIVATE(table_mask) = -1;
ret->UPB_PRIVATE(required_count) = 0;
}
static upb_MiniTable* upb_MtDecoder_DoBuildMiniTableWithBuf(
upb_MtDecoder* decoder, const char* data, size_t len, void** buf,
size_t* buf_size) {
upb_MdDecoder_CheckOutOfMemory(&decoder->base, decoder->table);
decoder->table->UPB_PRIVATE(size) = kUpb_Reserved_Hasbytes;
decoder->table->UPB_PRIVATE(field_count) = 0;
decoder->table->UPB_PRIVATE(ext) = kUpb_ExtMode_NonExtendable;
decoder->table->UPB_PRIVATE(dense_below) = 0;
decoder->table->UPB_PRIVATE(table_mask) = -1;
decoder->table->UPB_PRIVATE(required_count) = 0;
#if UPB_TRACING_ENABLED
// MiniTables built from MiniDescriptors will not be able to vend the message
// name unless it is explicitly set with upb_MiniTable_SetFullName().
decoder->table->UPB_PRIVATE(full_name) = 0;
#endif
// Strip off and verify the version tag.
if (!len--) goto done;
const char vers = *data++;
switch (vers) {
case kUpb_EncodedVersion_MapV1:
upb_MtDecoder_ParseMap(decoder, data, len);
break;
case kUpb_EncodedVersion_MessageV1:
upb_MtDecoder_ParseMessage(decoder, data, len);
upb_MtDecoder_AssignHasbits(decoder);
upb_MtDecoder_SortLayoutItems(decoder);
upb_MtDecoder_AssignOffsets(decoder);
break;
case kUpb_EncodedVersion_MessageSetV1:
upb_MtDecoder_ParseMessageSet(decoder, data, len);
break;
default:
upb_MdDecoder_ErrorJmp(&decoder->base, "Invalid message version: %c",
vers);
}
done:
*buf = decoder->vec.data;
*buf_size = decoder->vec.capacity * sizeof(*decoder->vec.data);
return decoder->table;
}
static upb_MiniTable* upb_MtDecoder_BuildMiniTableWithBuf(
upb_MtDecoder* const decoder, const char* const data, const size_t len,
void** const buf, size_t* const buf_size) {
if (UPB_SETJMP(decoder->base.err) != 0) {
*buf = decoder->vec.data;
*buf_size = decoder->vec.capacity * sizeof(*decoder->vec.data);
return NULL;
}
return upb_MtDecoder_DoBuildMiniTableWithBuf(decoder, data, len, buf,
buf_size);
}
upb_MiniTable* upb_MiniTable_BuildWithBuf(const char* data, size_t len,
upb_MiniTablePlatform platform,
upb_Arena* arena, void** buf,
size_t* buf_size,
upb_Status* status) {
upb_MtDecoder decoder = {
.base = {.status = status},
.platform = platform,
.vec =
{
.data = *buf,
.capacity = *buf_size / sizeof(*decoder.vec.data),
.size = 0,
},
.arena = arena,
.table = upb_Arena_Malloc(arena, sizeof(*decoder.table)),
};
return upb_MtDecoder_BuildMiniTableWithBuf(&decoder, data, len, buf,
buf_size);
}
static const char* upb_MtDecoder_DoBuildMiniTableExtension(
upb_MtDecoder* decoder, const char* data, size_t len,
upb_MiniTableExtension* ext, const upb_MiniTable* extendee,
upb_MiniTableSub sub) {
// If the string is non-empty then it must begin with a version tag.
if (len) {
if (*data != kUpb_EncodedVersion_ExtensionV1) {
upb_MdDecoder_ErrorJmp(&decoder->base, "Invalid ext version: %c", *data);
}
data++;
len--;
}
uint16_t count = 0;
upb_SubCounts sub_counts = {0, 0};
const char* ret = upb_MtDecoder_Parse(decoder, data, len, ext, sizeof(*ext),
&count, &sub_counts);
if (!ret || count != 1) return NULL;
upb_MiniTableField* f = &ext->UPB_PRIVATE(field);
f->UPB_PRIVATE(mode) |= kUpb_LabelFlags_IsExtension;
f->UPB_PRIVATE(offset) = 0;
f->presence = 0;
if (extendee->UPB_PRIVATE(ext) & kUpb_ExtMode_IsMessageSet) {
// Extensions of MessageSet must be messages.
if (!upb_MiniTableField_IsSubMessage(f)) return NULL;
// Extensions of MessageSet must be non-repeating.
if (upb_MiniTableField_IsArray(f)) return NULL;
}
ext->UPB_PRIVATE(extendee) = extendee;
ext->UPB_PRIVATE(sub) = sub;
return ret;
}
static const char* upb_MtDecoder_BuildMiniTableExtension(
upb_MtDecoder* const decoder, const char* const data, const size_t len,
upb_MiniTableExtension* const ext, const upb_MiniTable* const extendee,
const upb_MiniTableSub sub) {
if (UPB_SETJMP(decoder->base.err) != 0) return NULL;
return upb_MtDecoder_DoBuildMiniTableExtension(decoder, data, len, ext,
extendee, sub);
}
const char* _upb_MiniTableExtension_Init(const char* data, size_t len,
upb_MiniTableExtension* ext,
const upb_MiniTable* extendee,
upb_MiniTableSub sub,
upb_MiniTablePlatform platform,
upb_Status* status) {
upb_MtDecoder decoder = {
.base = {.status = status},
.arena = NULL,
.table = NULL,
.platform = platform,
};
return upb_MtDecoder_BuildMiniTableExtension(&decoder, data, len, ext,
extendee, sub);
}
upb_MiniTableExtension* _upb_MiniTableExtension_Build(
const char* data, size_t len, const upb_MiniTable* extendee,
upb_MiniTableSub sub, upb_MiniTablePlatform platform, upb_Arena* arena,
upb_Status* status) {
upb_MiniTableExtension* ext =
upb_Arena_Malloc(arena, sizeof(upb_MiniTableExtension));
if (UPB_UNLIKELY(!ext)) return NULL;
const char* ptr = _upb_MiniTableExtension_Init(data, len, ext, extendee, sub,
platform, status);
if (UPB_UNLIKELY(!ptr)) return NULL;
return ext;
}
upb_MiniTable* _upb_MiniTable_Build(const char* data, size_t len,
upb_MiniTablePlatform platform,
upb_Arena* arena, upb_Status* status) {
void* buf = NULL;
size_t size = 0;
upb_MiniTable* ret = upb_MiniTable_BuildWithBuf(data, len, platform, arena,
&buf, &size, status);
free(buf);
return ret;
}
#include <stddef.h>
#include <stdint.h>
#include <string.h>
// Must be last.
bool upb_MiniTable_SetSubMessage(upb_MiniTable* table,
upb_MiniTableField* field,
const upb_MiniTable* sub) {
UPB_ASSERT((uintptr_t)table->UPB_PRIVATE(fields) <= (uintptr_t)field &&
(uintptr_t)field < (uintptr_t)(table->UPB_PRIVATE(fields) +
table->UPB_PRIVATE(field_count)));
UPB_ASSERT(sub);
const bool sub_is_map = sub->UPB_PRIVATE(ext) & kUpb_ExtMode_IsMapEntry;
switch (field->UPB_PRIVATE(descriptortype)) {
case kUpb_FieldType_Message:
if (sub_is_map) {
const bool table_is_map =
table->UPB_PRIVATE(ext) & kUpb_ExtMode_IsMapEntry;
if (UPB_UNLIKELY(table_is_map)) return false;
field->UPB_PRIVATE(mode) =
(field->UPB_PRIVATE(mode) & ~kUpb_FieldMode_Mask) |
kUpb_FieldMode_Map;
}
break;
case kUpb_FieldType_Group:
if (UPB_UNLIKELY(sub_is_map)) return false;
break;
default:
return false;
}
int idx = field->UPB_PRIVATE(submsg_index);
upb_MiniTableSubInternal* table_subs = (void*)table->UPB_PRIVATE(subs);
// TODO: Add this assert back once YouTube is updated to not call
// this function repeatedly.
// UPB_ASSERT(UPB_PRIVATE(_upb_MiniTable_IsEmpty)(table_sub->submsg));
memcpy((void*)table_subs[idx].UPB_PRIVATE(submsg), &sub, sizeof(void*));
return true;
}
bool upb_MiniTable_SetSubEnum(upb_MiniTable* table, upb_MiniTableField* field,
const upb_MiniTableEnum* sub) {
UPB_ASSERT((uintptr_t)table->UPB_PRIVATE(fields) <= (uintptr_t)field &&
(uintptr_t)field < (uintptr_t)(table->UPB_PRIVATE(fields) +
table->UPB_PRIVATE(field_count)));
UPB_ASSERT(sub);
upb_MiniTableSub* table_sub =
(void*)&table->UPB_PRIVATE(subs)[field->UPB_PRIVATE(submsg_index)];
*table_sub = upb_MiniTableSub_FromEnum(sub);
return true;
}
uint32_t upb_MiniTable_GetSubList(const upb_MiniTable* m,
const upb_MiniTableField** subs) {
uint32_t msg_count = 0;
uint32_t enum_count = 0;
for (int i = 0; i < upb_MiniTable_FieldCount(m); i++) {
const upb_MiniTableField* f = upb_MiniTable_GetFieldByIndex(m, i);
if (upb_MiniTableField_CType(f) == kUpb_CType_Message) {
*subs = f;
++subs;
msg_count++;
}
}
for (int i = 0; i < upb_MiniTable_FieldCount(m); i++) {
const upb_MiniTableField* f = upb_MiniTable_GetFieldByIndex(m, i);
if (upb_MiniTableField_IsClosedEnum(f)) {
*subs = f;
++subs;
enum_count++;
}
}
return (msg_count << 16) | enum_count;
}
// The list of sub_tables and sub_enums must exactly match the number and order
// of sub-message fields and sub-enum fields given by upb_MiniTable_GetSubList()
// above.
bool upb_MiniTable_Link(upb_MiniTable* m, const upb_MiniTable** sub_tables,
size_t sub_table_count,
const upb_MiniTableEnum** sub_enums,
size_t sub_enum_count) {
uint32_t msg_count = 0;
uint32_t enum_count = 0;
for (int i = 0; i < upb_MiniTable_FieldCount(m); i++) {
upb_MiniTableField* f =
(upb_MiniTableField*)upb_MiniTable_GetFieldByIndex(m, i);
if (upb_MiniTableField_CType(f) == kUpb_CType_Message) {
const upb_MiniTable* sub = sub_tables[msg_count++];
if (msg_count > sub_table_count) return false;
if (sub && !upb_MiniTable_SetSubMessage(m, f, sub)) return false;
}
}
for (int i = 0; i < upb_MiniTable_FieldCount(m); i++) {
upb_MiniTableField* f =
(upb_MiniTableField*)upb_MiniTable_GetFieldByIndex(m, i);
if (upb_MiniTableField_IsClosedEnum(f)) {
const upb_MiniTableEnum* sub = sub_enums[enum_count++];
if (enum_count > sub_enum_count) return false;
if (sub && !upb_MiniTable_SetSubEnum(m, f, sub)) return false;
}
}
return (msg_count == sub_table_count) && (enum_count == sub_enum_count);
}
#include <stddef.h>
#include <stdint.h>
#include <string.h>
// Must be last.
#define EXTREG_KEY_SIZE (sizeof(upb_MiniTable*) + sizeof(uint32_t))
struct upb_ExtensionRegistry {
upb_Arena* arena;
upb_strtable exts; // Key is upb_MiniTable* concatenated with fieldnum.
};
static void extreg_key(char* buf, const upb_MiniTable* l, uint32_t fieldnum) {
memcpy(buf, &l, sizeof(l));
memcpy(buf + sizeof(l), &fieldnum, sizeof(fieldnum));
}
upb_ExtensionRegistry* upb_ExtensionRegistry_New(upb_Arena* arena) {
upb_ExtensionRegistry* r = upb_Arena_Malloc(arena, sizeof(*r));
if (!r) return NULL;
r->arena = arena;
if (!upb_strtable_init(&r->exts, 8, arena)) return NULL;
return r;
}
UPB_API bool upb_ExtensionRegistry_Add(upb_ExtensionRegistry* r,
const upb_MiniTableExtension* e) {
char buf[EXTREG_KEY_SIZE];
extreg_key(buf, e->UPB_PRIVATE(extendee), upb_MiniTableExtension_Number(e));
if (upb_strtable_lookup2(&r->exts, buf, EXTREG_KEY_SIZE, NULL)) return false;
return upb_strtable_insert(&r->exts, buf, EXTREG_KEY_SIZE,
upb_value_constptr(e), r->arena);
}
bool upb_ExtensionRegistry_AddArray(upb_ExtensionRegistry* r,
const upb_MiniTableExtension** e,
size_t count) {
const upb_MiniTableExtension** start = e;
const upb_MiniTableExtension** end = UPB_PTRADD(e, count);
for (; e < end; e++) {
if (!upb_ExtensionRegistry_Add(r, *e)) goto failure;
}
return true;
failure:
// Back out the entries previously added.
for (end = e, e = start; e < end; e++) {
const upb_MiniTableExtension* ext = *e;
char buf[EXTREG_KEY_SIZE];
extreg_key(buf, ext->UPB_PRIVATE(extendee),
upb_MiniTableExtension_Number(ext));
upb_strtable_remove2(&r->exts, buf, EXTREG_KEY_SIZE, NULL);
}
return false;
}
#ifdef UPB_LINKARR_DECLARE
UPB_LINKARR_DECLARE(upb_AllExts, upb_MiniTableExtension);
bool upb_ExtensionRegistry_AddAllLinkedExtensions(upb_ExtensionRegistry* r) {
const upb_MiniTableExtension* start = UPB_LINKARR_START(upb_AllExts);
const upb_MiniTableExtension* stop = UPB_LINKARR_STOP(upb_AllExts);
for (const upb_MiniTableExtension* p = start; p < stop; p++) {
// Windows can introduce zero padding, so we have to skip zeroes.
if (upb_MiniTableExtension_Number(p) != 0) {
if (!upb_ExtensionRegistry_Add(r, p)) return false;
}
}
return true;
}
#endif // UPB_LINKARR_DECLARE
const upb_MiniTableExtension* upb_ExtensionRegistry_Lookup(
const upb_ExtensionRegistry* r, const upb_MiniTable* t, uint32_t num) {
char buf[EXTREG_KEY_SIZE];
upb_value v;
extreg_key(buf, t, num);
if (upb_strtable_lookup2(&r->exts, buf, EXTREG_KEY_SIZE, &v)) {
return upb_value_getconstptr(v);
} else {
return NULL;
}
}
#include <inttypes.h>
#include <stddef.h>
#include <stdint.h>
// Must be last.
const upb_MiniTableField* upb_MiniTable_FindFieldByNumber(
const upb_MiniTable* m, uint32_t number) {
const size_t i = ((size_t)number) - 1; // 0 wraps to SIZE_MAX
// Ideal case: index into dense fields
if (i < m->UPB_PRIVATE(dense_below)) {
UPB_ASSERT(m->UPB_PRIVATE(fields)[i].UPB_PRIVATE(number) == number);
return &m->UPB_PRIVATE(fields)[i];
}
// Slow case: binary search
int lo = m->UPB_PRIVATE(dense_below);
int hi = m->UPB_PRIVATE(field_count) - 1;
while (lo <= hi) {
int mid = (lo + hi) / 2;
uint32_t num = m->UPB_PRIVATE(fields)[mid].UPB_PRIVATE(number);
if (num < number) {
lo = mid + 1;
continue;
}
if (num > number) {
hi = mid - 1;
continue;
}
return &m->UPB_PRIVATE(fields)[mid];
}
return NULL;
}
const upb_MiniTableField* upb_MiniTable_GetOneof(const upb_MiniTable* m,
const upb_MiniTableField* f) {
if (UPB_UNLIKELY(!upb_MiniTableField_IsInOneof(f))) {
return NULL;
}
const upb_MiniTableField* ptr = &m->UPB_PRIVATE(fields)[0];
const upb_MiniTableField* end =
&m->UPB_PRIVATE(fields)[m->UPB_PRIVATE(field_count)];
for (; ptr < end; ptr++) {
if (ptr->presence == (*f).presence) {
return ptr;
}
}
return NULL;
}
bool upb_MiniTable_NextOneofField(const upb_MiniTable* m,
const upb_MiniTableField** f) {
const upb_MiniTableField* ptr = *f;
const upb_MiniTableField* end =
&m->UPB_PRIVATE(fields)[m->UPB_PRIVATE(field_count)];
while (++ptr < end) {
if (ptr->presence == (*f)->presence) {
*f = ptr;
return true;
}
}
return false;
}
#include <stddef.h>
#include <stdint.h>
// Must be last.
// Checks if source and target mini table fields are identical.
//
// If the field is a sub message and sub messages are identical we record
// the association in table.
//
// Hashing the source sub message mini table and it's equivalent in the table
// stops recursing when a cycle is detected and instead just checks if the
// destination table is equal.
static upb_MiniTableEquals_Status upb_deep_check(const upb_MiniTable* src,
const upb_MiniTable* dst,
upb_inttable* table,
upb_Arena** arena) {
if (src->UPB_PRIVATE(field_count) != dst->UPB_PRIVATE(field_count))
return kUpb_MiniTableEquals_NotEqual;
bool marked_src = false;
for (int i = 0; i < upb_MiniTable_FieldCount(src); i++) {
const upb_MiniTableField* src_field = upb_MiniTable_GetFieldByIndex(src, i);
const upb_MiniTableField* dst_field = upb_MiniTable_FindFieldByNumber(
dst, upb_MiniTableField_Number(src_field));
if (upb_MiniTableField_CType(src_field) !=
upb_MiniTableField_CType(dst_field))
return false;
if (src_field->UPB_PRIVATE(mode) != dst_field->UPB_PRIVATE(mode))
return false;
if (src_field->UPB_PRIVATE(offset) != dst_field->UPB_PRIVATE(offset))
return false;
if (src_field->presence != dst_field->presence) return false;
if (src_field->UPB_PRIVATE(submsg_index) !=
dst_field->UPB_PRIVATE(submsg_index))
return kUpb_MiniTableEquals_NotEqual;
// Go no further if we are only checking for compatibility.
if (!table) continue;
if (upb_MiniTableField_CType(src_field) == kUpb_CType_Message) {
if (!*arena) {
*arena = upb_Arena_New();
if (!upb_inttable_init(table, *arena)) {
return kUpb_MiniTableEquals_OutOfMemory;
}
}
if (!marked_src) {
marked_src = true;
upb_value val;
val.val = (uint64_t)dst;
if (!upb_inttable_insert(table, (uintptr_t)src, val, *arena)) {
return kUpb_MiniTableEquals_OutOfMemory;
}
}
const upb_MiniTable* sub_src =
upb_MiniTable_GetSubMessageTable(src, src_field);
const upb_MiniTable* sub_dst =
upb_MiniTable_GetSubMessageTable(dst, dst_field);
if (sub_src != NULL) {
upb_value cmp;
if (upb_inttable_lookup(table, (uintptr_t)sub_src, &cmp)) {
// We already compared this src before. Check if same dst.
if (cmp.val != (uint64_t)sub_dst) {
return kUpb_MiniTableEquals_NotEqual;
}
} else {
// Recurse if not already visited.
upb_MiniTableEquals_Status s =
upb_deep_check(sub_src, sub_dst, table, arena);
if (s != kUpb_MiniTableEquals_Equal) {
return s;
}
}
}
}
}
return kUpb_MiniTableEquals_Equal;
}
bool upb_MiniTable_Compatible(const upb_MiniTable* src,
const upb_MiniTable* dst) {
return upb_deep_check(src, dst, NULL, NULL);
}
upb_MiniTableEquals_Status upb_MiniTable_Equals(const upb_MiniTable* src,
const upb_MiniTable* dst) {
// Arena allocated on demand for hash table.
upb_Arena* arena = NULL;
// Table to keep track of visited mini tables to guard against cycles.
upb_inttable table;
upb_MiniTableEquals_Status status = upb_deep_check(src, dst, &table, &arena);
if (arena) {
upb_Arena_Free(arena);
}
return status;
}
#include <assert.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
// Must be last.
// A few fake field types for our tables.
enum {
kUpb_FakeFieldType_FieldNotFound = 0,
kUpb_FakeFieldType_MessageSetItem = 19,
};
// DecodeOp: an action to be performed for a wire-type/field-type combination.
enum {
// Special ops: we don't write data to regular fields for these.
kUpb_DecodeOp_UnknownField = -1,
kUpb_DecodeOp_MessageSetItem = -2,
// Scalar-only ops.
kUpb_DecodeOp_Scalar1Byte = 0,
kUpb_DecodeOp_Scalar4Byte = 2,
kUpb_DecodeOp_Scalar8Byte = 3,
kUpb_DecodeOp_Enum = 1,
// Scalar/repeated ops.
kUpb_DecodeOp_String = 4,
kUpb_DecodeOp_Bytes = 5,
kUpb_DecodeOp_SubMessage = 6,
// Repeated-only ops (also see macros below).
kUpb_DecodeOp_PackedEnum = 13,
};
// For packed fields it is helpful to be able to recover the lg2 of the data
// size from the op.
#define OP_FIXPCK_LG2(n) (n + 5) /* n in [2, 3] => op in [7, 8] */
#define OP_VARPCK_LG2(n) (n + 9) /* n in [0, 2, 3] => op in [9, 11, 12] */
typedef union {
bool bool_val;
uint32_t uint32_val;
uint64_t uint64_val;
uint32_t size;
} wireval;
// Ideally these two functions should take the owning MiniTable pointer as a
// first argument, then we could just put them in mini_table/message.h as nice
// clean getters. But we don't have that so instead we gotta write these
// Frankenfunctions that take an array of subtables.
// TODO: Move these to mini_table/ anyway since there are other places
// that could use them.
// Returns the MiniTable corresponding to a given MiniTableField
// from an array of MiniTableSubs.
static const upb_MiniTable* _upb_MiniTableSubs_MessageByField(
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field) {
return *subs[field->UPB_PRIVATE(submsg_index)].UPB_PRIVATE(submsg);
}
// Returns the MiniTableEnum corresponding to a given MiniTableField
// from an array of MiniTableSub.
static const upb_MiniTableEnum* _upb_MiniTableSubs_EnumByField(
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field) {
return subs[field->UPB_PRIVATE(submsg_index)].UPB_PRIVATE(subenum);
}
static const char* _upb_Decoder_DecodeMessage(upb_Decoder* d, const char* ptr,
upb_Message* msg,
const upb_MiniTable* layout);
UPB_NORETURN static void* _upb_Decoder_ErrorJmp(upb_Decoder* d,
upb_DecodeStatus status) {
UPB_ASSERT(status != kUpb_DecodeStatus_Ok);
d->status = status;
UPB_LONGJMP(d->err, 1);
}
const char* _upb_FastDecoder_ErrorJmp(upb_Decoder* d, int status) {
UPB_ASSERT(status != kUpb_DecodeStatus_Ok);
d->status = status;
UPB_LONGJMP(d->err, 1);
return NULL;
}
static void _upb_Decoder_VerifyUtf8(upb_Decoder* d, const char* buf, int len) {
if (!_upb_Decoder_VerifyUtf8Inline(buf, len)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_BadUtf8);
}
}
static bool _upb_Decoder_Reserve(upb_Decoder* d, upb_Array* arr, size_t elem) {
bool need_realloc =
arr->UPB_PRIVATE(capacity) - arr->UPB_PRIVATE(size) < elem;
if (need_realloc && !UPB_PRIVATE(_upb_Array_Realloc)(
arr, arr->UPB_PRIVATE(size) + elem, &d->arena)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
return need_realloc;
}
typedef struct {
const char* ptr;
uint64_t val;
} _upb_DecodeLongVarintReturn;
UPB_NOINLINE
static _upb_DecodeLongVarintReturn _upb_Decoder_DecodeLongVarint(
const char* ptr, uint64_t val) {
_upb_DecodeLongVarintReturn ret = {NULL, 0};
uint64_t byte;
for (int i = 1; i < 10; i++) {
byte = (uint8_t)ptr[i];
val += (byte - 1) << (i * 7);
if (!(byte & 0x80)) {
ret.ptr = ptr + i + 1;
ret.val = val;
return ret;
}
}
return ret;
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeVarint(upb_Decoder* d, const char* ptr,
uint64_t* val) {
uint64_t byte = (uint8_t)*ptr;
if (UPB_LIKELY((byte & 0x80) == 0)) {
*val = byte;
return ptr + 1;
} else {
_upb_DecodeLongVarintReturn res = _upb_Decoder_DecodeLongVarint(ptr, byte);
if (!res.ptr) _upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
*val = res.val;
return res.ptr;
}
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeTag(upb_Decoder* d, const char* ptr,
uint32_t* val) {
uint64_t byte = (uint8_t)*ptr;
if (UPB_LIKELY((byte & 0x80) == 0)) {
*val = byte;
return ptr + 1;
} else {
const char* start = ptr;
_upb_DecodeLongVarintReturn res = _upb_Decoder_DecodeLongVarint(ptr, byte);
if (!res.ptr || res.ptr - start > 5 || res.val > UINT32_MAX) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
*val = res.val;
return res.ptr;
}
}
UPB_FORCEINLINE
const char* upb_Decoder_DecodeSize(upb_Decoder* d, const char* ptr,
uint32_t* size) {
uint64_t size64;
ptr = _upb_Decoder_DecodeVarint(d, ptr, &size64);
if (size64 >= INT32_MAX ||
!upb_EpsCopyInputStream_CheckSize(&d->input, ptr, (int)size64)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
*size = size64;
return ptr;
}
static void _upb_Decoder_MungeInt32(wireval* val) {
if (!upb_IsLittleEndian()) {
/* The next stage will memcpy(dst, &val, 4) */
val->uint32_val = val->uint64_val;
}
}
static void _upb_Decoder_Munge(int type, wireval* val) {
switch (type) {
case kUpb_FieldType_Bool:
val->bool_val = val->uint64_val != 0;
break;
case kUpb_FieldType_SInt32: {
uint32_t n = val->uint64_val;
val->uint32_val = (n >> 1) ^ -(int32_t)(n & 1);
break;
}
case kUpb_FieldType_SInt64: {
uint64_t n = val->uint64_val;
val->uint64_val = (n >> 1) ^ -(int64_t)(n & 1);
break;
}
case kUpb_FieldType_Int32:
case kUpb_FieldType_UInt32:
case kUpb_FieldType_Enum:
_upb_Decoder_MungeInt32(val);
break;
}
}
static upb_Message* _upb_Decoder_NewSubMessage2(upb_Decoder* d,
const upb_MiniTable* subl,
const upb_MiniTableField* field,
upb_TaggedMessagePtr* target) {
UPB_ASSERT(subl);
upb_Message* msg = _upb_Message_New(subl, &d->arena);
if (!msg) _upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
// Extensions should not be unlinked. A message extension should not be
// registered until its sub-message type is available to be linked.
bool is_empty = UPB_PRIVATE(_upb_MiniTable_IsEmpty)(subl);
bool is_extension = field->UPB_PRIVATE(mode) & kUpb_LabelFlags_IsExtension;
UPB_ASSERT(!(is_empty && is_extension));
if (is_empty && !(d->options & kUpb_DecodeOption_ExperimentalAllowUnlinked)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_UnlinkedSubMessage);
}
upb_TaggedMessagePtr tagged =
UPB_PRIVATE(_upb_TaggedMessagePtr_Pack)(msg, is_empty);
memcpy(target, &tagged, sizeof(tagged));
return msg;
}
static upb_Message* _upb_Decoder_NewSubMessage(
upb_Decoder* d, const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* field, upb_TaggedMessagePtr* target) {
const upb_MiniTable* subl = _upb_MiniTableSubs_MessageByField(subs, field);
return _upb_Decoder_NewSubMessage2(d, subl, field, target);
}
static upb_Message* _upb_Decoder_ReuseSubMessage(
upb_Decoder* d, const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* field, upb_TaggedMessagePtr* target) {
upb_TaggedMessagePtr tagged = *target;
const upb_MiniTable* subl = _upb_MiniTableSubs_MessageByField(subs, field);
UPB_ASSERT(subl);
if (!upb_TaggedMessagePtr_IsEmpty(tagged) ||
UPB_PRIVATE(_upb_MiniTable_IsEmpty)(subl)) {
return UPB_PRIVATE(_upb_TaggedMessagePtr_GetMessage)(tagged);
}
// We found an empty message from a previous parse that was performed before
// this field was linked. But it is linked now, so we want to allocate a new
// message of the correct type and promote data into it before continuing.
upb_Message* existing =
UPB_PRIVATE(_upb_TaggedMessagePtr_GetEmptyMessage)(tagged);
upb_Message* promoted = _upb_Decoder_NewSubMessage(d, subs, field, target);
uintptr_t iter = kUpb_Message_UnknownBegin;
upb_StringView unknown;
while (upb_Message_NextUnknown(existing, &unknown, &iter)) {
upb_DecodeStatus status =
upb_Decode(unknown.data, unknown.size, promoted, subl, d->extreg,
d->options, &d->arena);
if (status != kUpb_DecodeStatus_Ok) _upb_Decoder_ErrorJmp(d, status);
}
return promoted;
}
static const char* _upb_Decoder_ReadString(upb_Decoder* d, const char* ptr,
int size, upb_StringView* str) {
const char* str_ptr = ptr;
ptr = upb_EpsCopyInputStream_ReadString(&d->input, &str_ptr, size, &d->arena);
if (!ptr) _upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
str->data = str_ptr;
str->size = size;
return ptr;
}
UPB_FORCEINLINE
const char* _upb_Decoder_RecurseSubMessage(upb_Decoder* d, const char* ptr,
upb_Message* submsg,
const upb_MiniTable* subl,
uint32_t expected_end_group) {
if (--d->depth < 0) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_MaxDepthExceeded);
}
ptr = _upb_Decoder_DecodeMessage(d, ptr, submsg, subl);
d->depth++;
if (d->end_group != expected_end_group) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
return ptr;
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeSubMessage(upb_Decoder* d, const char* ptr,
upb_Message* submsg,
const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* field,
int size) {
int saved_delta = upb_EpsCopyInputStream_PushLimit(&d->input, ptr, size);
const upb_MiniTable* subl = _upb_MiniTableSubs_MessageByField(subs, field);
UPB_ASSERT(subl);
ptr = _upb_Decoder_RecurseSubMessage(d, ptr, submsg, subl, DECODE_NOGROUP);
upb_EpsCopyInputStream_PopLimit(&d->input, ptr, saved_delta);
return ptr;
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeGroup(upb_Decoder* d, const char* ptr,
upb_Message* submsg,
const upb_MiniTable* subl,
uint32_t number) {
if (_upb_Decoder_IsDone(d, &ptr)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
ptr = _upb_Decoder_RecurseSubMessage(d, ptr, submsg, subl, number);
d->end_group = DECODE_NOGROUP;
return ptr;
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeUnknownGroup(upb_Decoder* d, const char* ptr,
uint32_t number) {
return _upb_Decoder_DecodeGroup(d, ptr, NULL, NULL, number);
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeKnownGroup(upb_Decoder* d, const char* ptr,
upb_Message* submsg,
const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* field) {
const upb_MiniTable* subl = _upb_MiniTableSubs_MessageByField(subs, field);
UPB_ASSERT(subl);
return _upb_Decoder_DecodeGroup(d, ptr, submsg, subl,
field->UPB_PRIVATE(number));
}
#define kUpb_Decoder_EncodeVarint32MaxSize 5
static char* upb_Decoder_EncodeVarint32(uint32_t val, char* ptr) {
do {
uint8_t byte = val & 0x7fU;
val >>= 7;
if (val) byte |= 0x80U;
*(ptr++) = byte;
} while (val);
return ptr;
}
UPB_FORCEINLINE
bool _upb_Decoder_CheckEnum(upb_Decoder* d, const char* ptr, upb_Message* msg,
const upb_MiniTableEnum* e,
const upb_MiniTableField* field, wireval* val) {
const uint32_t v = val->uint32_val;
if (UPB_LIKELY(upb_MiniTableEnum_CheckValue(e, v))) return true;
// Unrecognized enum goes into unknown fields.
// For packed fields the tag could be arbitrarily far in the past,
// so we just re-encode the tag and value here.
const uint32_t tag =
((uint32_t)field->UPB_PRIVATE(number) << 3) | kUpb_WireType_Varint;
upb_Message* unknown_msg =
field->UPB_PRIVATE(mode) & kUpb_LabelFlags_IsExtension ? d->original_msg
: msg;
char buf[2 * kUpb_Decoder_EncodeVarint32MaxSize];
char* end = buf;
end = upb_Decoder_EncodeVarint32(tag, end);
end = upb_Decoder_EncodeVarint32(v, end);
if (!UPB_PRIVATE(_upb_Message_AddUnknown)(unknown_msg, buf, end - buf,
&d->arena)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
return false;
}
UPB_NOINLINE
static const char* _upb_Decoder_DecodeEnumArray(
upb_Decoder* d, const char* ptr, upb_Message* msg, upb_Array* arr,
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field,
wireval* val) {
const upb_MiniTableEnum* e = _upb_MiniTableSubs_EnumByField(subs, field);
if (!_upb_Decoder_CheckEnum(d, ptr, msg, e, field, val)) return ptr;
void* mem = UPB_PTR_AT(upb_Array_MutableDataPtr(arr),
arr->UPB_PRIVATE(size) * 4, void);
arr->UPB_PRIVATE(size)++;
memcpy(mem, val, 4);
return ptr;
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeFixedPacked(upb_Decoder* d, const char* ptr,
upb_Array* arr, wireval* val,
const upb_MiniTableField* field,
int lg2) {
int mask = (1 << lg2) - 1;
size_t count = val->size >> lg2;
if ((val->size & mask) != 0) {
// Length isn't a round multiple of elem size.
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
_upb_Decoder_Reserve(d, arr, count);
void* mem = UPB_PTR_AT(upb_Array_MutableDataPtr(arr),
arr->UPB_PRIVATE(size) << lg2, void);
arr->UPB_PRIVATE(size) += count;
// Note: if/when the decoder supports multi-buffer input, we will need to
// handle buffer seams here.
if (upb_IsLittleEndian()) {
ptr = upb_EpsCopyInputStream_Copy(&d->input, ptr, mem, val->size);
} else {
int delta = upb_EpsCopyInputStream_PushLimit(&d->input, ptr, val->size);
char* dst = mem;
while (!_upb_Decoder_IsDone(d, &ptr)) {
if (lg2 == 2) {
ptr = upb_WireReader_ReadFixed32(ptr, dst);
dst += 4;
} else {
UPB_ASSERT(lg2 == 3);
ptr = upb_WireReader_ReadFixed64(ptr, dst);
dst += 8;
}
}
upb_EpsCopyInputStream_PopLimit(&d->input, ptr, delta);
}
return ptr;
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeVarintPacked(upb_Decoder* d, const char* ptr,
upb_Array* arr, wireval* val,
const upb_MiniTableField* field,
int lg2) {
int scale = 1 << lg2;
int saved_limit = upb_EpsCopyInputStream_PushLimit(&d->input, ptr, val->size);
char* out = UPB_PTR_AT(upb_Array_MutableDataPtr(arr),
arr->UPB_PRIVATE(size) << lg2, void);
while (!_upb_Decoder_IsDone(d, &ptr)) {
wireval elem;
ptr = _upb_Decoder_DecodeVarint(d, ptr, &elem.uint64_val);
_upb_Decoder_Munge(field->UPB_PRIVATE(descriptortype), &elem);
if (_upb_Decoder_Reserve(d, arr, 1)) {
out = UPB_PTR_AT(upb_Array_MutableDataPtr(arr),
arr->UPB_PRIVATE(size) << lg2, void);
}
arr->UPB_PRIVATE(size)++;
memcpy(out, &elem, scale);
out += scale;
}
upb_EpsCopyInputStream_PopLimit(&d->input, ptr, saved_limit);
return ptr;
}
UPB_NOINLINE
static const char* _upb_Decoder_DecodeEnumPacked(
upb_Decoder* d, const char* ptr, upb_Message* msg, upb_Array* arr,
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field,
wireval* val) {
const upb_MiniTableEnum* e = _upb_MiniTableSubs_EnumByField(subs, field);
int saved_limit = upb_EpsCopyInputStream_PushLimit(&d->input, ptr, val->size);
char* out = UPB_PTR_AT(upb_Array_MutableDataPtr(arr),
arr->UPB_PRIVATE(size) * 4, void);
while (!_upb_Decoder_IsDone(d, &ptr)) {
wireval elem;
ptr = _upb_Decoder_DecodeVarint(d, ptr, &elem.uint64_val);
_upb_Decoder_MungeInt32(&elem);
if (!_upb_Decoder_CheckEnum(d, ptr, msg, e, field, &elem)) {
continue;
}
if (_upb_Decoder_Reserve(d, arr, 1)) {
out = UPB_PTR_AT(upb_Array_MutableDataPtr(arr),
arr->UPB_PRIVATE(size) * 4, void);
}
arr->UPB_PRIVATE(size)++;
memcpy(out, &elem, 4);
out += 4;
}
upb_EpsCopyInputStream_PopLimit(&d->input, ptr, saved_limit);
return ptr;
}
static upb_Array* _upb_Decoder_CreateArray(upb_Decoder* d,
const upb_MiniTableField* field) {
const upb_FieldType field_type = field->UPB_PRIVATE(descriptortype);
const size_t lg2 = UPB_PRIVATE(_upb_FieldType_SizeLg2)(field_type);
upb_Array* ret = UPB_PRIVATE(_upb_Array_New)(&d->arena, 4, lg2);
if (!ret) _upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
return ret;
}
static const char* _upb_Decoder_DecodeToArray(
upb_Decoder* d, const char* ptr, upb_Message* msg,
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field,
wireval* val, int op) {
upb_Array** arrp = UPB_PTR_AT(msg, field->UPB_PRIVATE(offset), void);
upb_Array* arr = *arrp;
void* mem;
if (arr) {
_upb_Decoder_Reserve(d, arr, 1);
} else {
arr = _upb_Decoder_CreateArray(d, field);
*arrp = arr;
}
switch (op) {
case kUpb_DecodeOp_Scalar1Byte:
case kUpb_DecodeOp_Scalar4Byte:
case kUpb_DecodeOp_Scalar8Byte:
/* Append scalar value. */
mem = UPB_PTR_AT(upb_Array_MutableDataPtr(arr),
arr->UPB_PRIVATE(size) << op, void);
arr->UPB_PRIVATE(size)++;
memcpy(mem, val, 1 << op);
return ptr;
case kUpb_DecodeOp_String:
_upb_Decoder_VerifyUtf8(d, ptr, val->size);
/* Fallthrough. */
case kUpb_DecodeOp_Bytes: {
/* Append bytes. */
upb_StringView* str = (upb_StringView*)upb_Array_MutableDataPtr(arr) +
arr->UPB_PRIVATE(size);
arr->UPB_PRIVATE(size)++;
return _upb_Decoder_ReadString(d, ptr, val->size, str);
}
case kUpb_DecodeOp_SubMessage: {
/* Append submessage / group. */
upb_TaggedMessagePtr* target = UPB_PTR_AT(
upb_Array_MutableDataPtr(arr), arr->UPB_PRIVATE(size) * sizeof(void*),
upb_TaggedMessagePtr);
upb_Message* submsg = _upb_Decoder_NewSubMessage(d, subs, field, target);
arr->UPB_PRIVATE(size)++;
if (UPB_UNLIKELY(field->UPB_PRIVATE(descriptortype) ==
kUpb_FieldType_Group)) {
return _upb_Decoder_DecodeKnownGroup(d, ptr, submsg, subs, field);
} else {
return _upb_Decoder_DecodeSubMessage(d, ptr, submsg, subs, field,
val->size);
}
}
case OP_FIXPCK_LG2(2):
case OP_FIXPCK_LG2(3):
return _upb_Decoder_DecodeFixedPacked(d, ptr, arr, val, field,
op - OP_FIXPCK_LG2(0));
case OP_VARPCK_LG2(0):
case OP_VARPCK_LG2(2):
case OP_VARPCK_LG2(3):
return _upb_Decoder_DecodeVarintPacked(d, ptr, arr, val, field,
op - OP_VARPCK_LG2(0));
case kUpb_DecodeOp_Enum:
return _upb_Decoder_DecodeEnumArray(d, ptr, msg, arr, subs, field, val);
case kUpb_DecodeOp_PackedEnum:
return _upb_Decoder_DecodeEnumPacked(d, ptr, msg, arr, subs, field, val);
default:
UPB_UNREACHABLE();
}
}
static upb_Map* _upb_Decoder_CreateMap(upb_Decoder* d,
const upb_MiniTable* entry) {
// Maps descriptor type -> upb map size
static const uint8_t kSizeInMap[] = {
[0] = -1, // invalid descriptor type
[kUpb_FieldType_Double] = 8,
[kUpb_FieldType_Float] = 4,
[kUpb_FieldType_Int64] = 8,
[kUpb_FieldType_UInt64] = 8,
[kUpb_FieldType_Int32] = 4,
[kUpb_FieldType_Fixed64] = 8,
[kUpb_FieldType_Fixed32] = 4,
[kUpb_FieldType_Bool] = 1,
[kUpb_FieldType_String] = UPB_MAPTYPE_STRING,
[kUpb_FieldType_Group] = sizeof(void*),
[kUpb_FieldType_Message] = sizeof(void*),
[kUpb_FieldType_Bytes] = UPB_MAPTYPE_STRING,
[kUpb_FieldType_UInt32] = 4,
[kUpb_FieldType_Enum] = 4,
[kUpb_FieldType_SFixed32] = 4,
[kUpb_FieldType_SFixed64] = 8,
[kUpb_FieldType_SInt32] = 4,
[kUpb_FieldType_SInt64] = 8,
};
const upb_MiniTableField* key_field = &entry->UPB_PRIVATE(fields)[0];
const upb_MiniTableField* val_field = &entry->UPB_PRIVATE(fields)[1];
char key_size = kSizeInMap[key_field->UPB_PRIVATE(descriptortype)];
char val_size = kSizeInMap[val_field->UPB_PRIVATE(descriptortype)];
UPB_ASSERT(key_field->UPB_PRIVATE(offset) == offsetof(upb_MapEntry, k));
UPB_ASSERT(val_field->UPB_PRIVATE(offset) == offsetof(upb_MapEntry, v));
upb_Map* ret = _upb_Map_New(&d->arena, key_size, val_size);
if (!ret) _upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
return ret;
}
static const char* _upb_Decoder_DecodeToMap(
upb_Decoder* d, const char* ptr, upb_Message* msg,
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field,
wireval* val) {
upb_Map** map_p = UPB_PTR_AT(msg, field->UPB_PRIVATE(offset), upb_Map*);
upb_Map* map = *map_p;
upb_MapEntry ent;
UPB_ASSERT(upb_MiniTableField_Type(field) == kUpb_FieldType_Message);
const upb_MiniTable* entry = _upb_MiniTableSubs_MessageByField(subs, field);
UPB_ASSERT(entry);
UPB_ASSERT(entry->UPB_PRIVATE(field_count) == 2);
UPB_ASSERT(upb_MiniTableField_IsScalar(&entry->UPB_PRIVATE(fields)[0]));
UPB_ASSERT(upb_MiniTableField_IsScalar(&entry->UPB_PRIVATE(fields)[1]));
if (!map) {
map = _upb_Decoder_CreateMap(d, entry);
*map_p = map;
}
// Parse map entry.
memset(&ent, 0, sizeof(ent));
if (entry->UPB_PRIVATE(fields)[1].UPB_PRIVATE(descriptortype) ==
kUpb_FieldType_Message ||
entry->UPB_PRIVATE(fields)[1].UPB_PRIVATE(descriptortype) ==
kUpb_FieldType_Group) {
// Create proactively to handle the case where it doesn't appear.
upb_TaggedMessagePtr msg;
_upb_Decoder_NewSubMessage(d, entry->UPB_PRIVATE(subs),
&entry->UPB_PRIVATE(fields)[1], &msg);
ent.v.val = upb_value_uintptr(msg);
}
ptr = _upb_Decoder_DecodeSubMessage(d, ptr, &ent.message, subs, field,
val->size);
if (upb_Message_HasUnknown(&ent.message)) {
char* buf;
size_t size;
uint32_t tag =
((uint32_t)field->UPB_PRIVATE(number) << 3) | kUpb_WireType_Delimited;
upb_EncodeStatus status =
upb_Encode(&ent.message, entry, 0, &d->arena, &buf, &size);
if (status != kUpb_EncodeStatus_Ok) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
char delim_buf[2 * kUpb_Decoder_EncodeVarint32MaxSize];
char* delim_end = delim_buf;
delim_end = upb_Decoder_EncodeVarint32(tag, delim_end);
delim_end = upb_Decoder_EncodeVarint32(size, delim_end);
upb_StringView unknown[] = {
{delim_buf, delim_end - delim_buf},
{buf, size},
};
if (!UPB_PRIVATE(_upb_Message_AddUnknownV)(msg, &d->arena, unknown, 2)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
} else {
if (_upb_Map_Insert(map, &ent.k, map->key_size, &ent.v, map->val_size,
&d->arena) == kUpb_MapInsertStatus_OutOfMemory) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
}
return ptr;
}
static const char* _upb_Decoder_DecodeToSubMessage(
upb_Decoder* d, const char* ptr, upb_Message* msg,
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field,
wireval* val, int op) {
void* mem = UPB_PTR_AT(msg, field->UPB_PRIVATE(offset), void);
int type = field->UPB_PRIVATE(descriptortype);
if (UPB_UNLIKELY(op == kUpb_DecodeOp_Enum) &&
!_upb_Decoder_CheckEnum(d, ptr, msg,
_upb_MiniTableSubs_EnumByField(subs, field),
field, val)) {
return ptr;
}
// Set presence if necessary.
if (UPB_PRIVATE(_upb_MiniTableField_HasHasbit)(field)) {
UPB_PRIVATE(_upb_Message_SetHasbit)(msg, field);
} else if (upb_MiniTableField_IsInOneof(field)) {
// Oneof case
uint32_t* oneof_case = UPB_PRIVATE(_upb_Message_OneofCasePtr)(msg, field);
if (op == kUpb_DecodeOp_SubMessage &&
*oneof_case != field->UPB_PRIVATE(number)) {
memset(mem, 0, sizeof(void*));
}
*oneof_case = field->UPB_PRIVATE(number);
}
// Store into message.
switch (op) {
case kUpb_DecodeOp_SubMessage: {
upb_TaggedMessagePtr* submsgp = mem;
upb_Message* submsg;
if (*submsgp) {
submsg = _upb_Decoder_ReuseSubMessage(d, subs, field, submsgp);
} else {
submsg = _upb_Decoder_NewSubMessage(d, subs, field, submsgp);
}
if (UPB_UNLIKELY(type == kUpb_FieldType_Group)) {
ptr = _upb_Decoder_DecodeKnownGroup(d, ptr, submsg, subs, field);
} else {
ptr = _upb_Decoder_DecodeSubMessage(d, ptr, submsg, subs, field,
val->size);
}
break;
}
case kUpb_DecodeOp_String:
_upb_Decoder_VerifyUtf8(d, ptr, val->size);
/* Fallthrough. */
case kUpb_DecodeOp_Bytes:
return _upb_Decoder_ReadString(d, ptr, val->size, mem);
case kUpb_DecodeOp_Scalar8Byte:
memcpy(mem, val, 8);
break;
case kUpb_DecodeOp_Enum:
case kUpb_DecodeOp_Scalar4Byte:
memcpy(mem, val, 4);
break;
case kUpb_DecodeOp_Scalar1Byte:
memcpy(mem, val, 1);
break;
default:
UPB_UNREACHABLE();
}
return ptr;
}
UPB_NOINLINE
const char* _upb_Decoder_CheckRequired(upb_Decoder* d, const char* ptr,
const upb_Message* msg,
const upb_MiniTable* m) {
UPB_ASSERT(m->UPB_PRIVATE(required_count));
if (UPB_UNLIKELY(d->options & kUpb_DecodeOption_CheckRequired)) {
d->missing_required =
!UPB_PRIVATE(_upb_Message_IsInitializedShallow)(msg, m);
}
return ptr;
}
UPB_FORCEINLINE
bool _upb_Decoder_TryFastDispatch(upb_Decoder* d, const char** ptr,
upb_Message* msg, const upb_MiniTable* m) {
#if UPB_FASTTABLE
if (m && m->UPB_PRIVATE(table_mask) != (unsigned char)-1) {
uint16_t tag = _upb_FastDecoder_LoadTag(*ptr);
intptr_t table = decode_totable(m);
*ptr = _upb_FastDecoder_TagDispatch(d, *ptr, msg, table, 0, tag);
return true;
}
#endif
return false;
}
static const char* upb_Decoder_SkipField(upb_Decoder* d, const char* ptr,
uint32_t tag) {
int field_number = tag >> 3;
int wire_type = tag & 7;
switch (wire_type) {
case kUpb_WireType_Varint: {
uint64_t val;
return _upb_Decoder_DecodeVarint(d, ptr, &val);
}
case kUpb_WireType_64Bit:
return ptr + 8;
case kUpb_WireType_32Bit:
return ptr + 4;
case kUpb_WireType_Delimited: {
uint32_t size;
ptr = upb_Decoder_DecodeSize(d, ptr, &size);
return ptr + size;
}
case kUpb_WireType_StartGroup:
return _upb_Decoder_DecodeUnknownGroup(d, ptr, field_number);
default:
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
}
enum {
kStartItemTag = ((kUpb_MsgSet_Item << 3) | kUpb_WireType_StartGroup),
kEndItemTag = ((kUpb_MsgSet_Item << 3) | kUpb_WireType_EndGroup),
kTypeIdTag = ((kUpb_MsgSet_TypeId << 3) | kUpb_WireType_Varint),
kMessageTag = ((kUpb_MsgSet_Message << 3) | kUpb_WireType_Delimited),
};
static void upb_Decoder_AddKnownMessageSetItem(
upb_Decoder* d, upb_Message* msg, const upb_MiniTableExtension* item_mt,
const char* data, uint32_t size) {
upb_Extension* ext =
UPB_PRIVATE(_upb_Message_GetOrCreateExtension)(msg, item_mt, &d->arena);
if (UPB_UNLIKELY(!ext)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
upb_Message* submsg = _upb_Decoder_NewSubMessage2(
d, ext->ext->UPB_PRIVATE(sub).UPB_PRIVATE(submsg),
&ext->ext->UPB_PRIVATE(field), (upb_TaggedMessagePtr*)&ext->data);
upb_DecodeStatus status = upb_Decode(
data, size, submsg, upb_MiniTableExtension_GetSubMessage(item_mt),
d->extreg, d->options, &d->arena);
if (status != kUpb_DecodeStatus_Ok) _upb_Decoder_ErrorJmp(d, status);
}
static void upb_Decoder_AddUnknownMessageSetItem(upb_Decoder* d,
upb_Message* msg,
uint32_t type_id,
const char* message_data,
uint32_t message_size) {
char buf[6 * kUpb_Decoder_EncodeVarint32MaxSize];
char* ptr = buf;
ptr = upb_Decoder_EncodeVarint32(kStartItemTag, ptr);
ptr = upb_Decoder_EncodeVarint32(kTypeIdTag, ptr);
ptr = upb_Decoder_EncodeVarint32(type_id, ptr);
ptr = upb_Decoder_EncodeVarint32(kMessageTag, ptr);
ptr = upb_Decoder_EncodeVarint32(message_size, ptr);
char* split = ptr;
ptr = upb_Decoder_EncodeVarint32(kEndItemTag, ptr);
char* end = ptr;
upb_StringView unknown[] = {
{buf, split - buf},
{message_data, message_size},
{split, end - split},
};
if (!UPB_PRIVATE(_upb_Message_AddUnknownV)(msg, &d->arena, unknown, 3)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
}
static void upb_Decoder_AddMessageSetItem(upb_Decoder* d, upb_Message* msg,
const upb_MiniTable* t,
uint32_t type_id, const char* data,
uint32_t size) {
const upb_MiniTableExtension* item_mt =
upb_ExtensionRegistry_Lookup(d->extreg, t, type_id);
if (item_mt) {
upb_Decoder_AddKnownMessageSetItem(d, msg, item_mt, data, size);
} else {
upb_Decoder_AddUnknownMessageSetItem(d, msg, type_id, data, size);
}
}
static const char* upb_Decoder_DecodeMessageSetItem(
upb_Decoder* d, const char* ptr, upb_Message* msg,
const upb_MiniTable* layout) {
uint32_t type_id = 0;
upb_StringView preserved = {NULL, 0};
typedef enum {
kUpb_HaveId = 1 << 0,
kUpb_HavePayload = 1 << 1,
} StateMask;
StateMask state_mask = 0;
while (!_upb_Decoder_IsDone(d, &ptr)) {
uint32_t tag;
ptr = _upb_Decoder_DecodeTag(d, ptr, &tag);
switch (tag) {
case kEndItemTag:
return ptr;
case kTypeIdTag: {
uint64_t tmp;
ptr = _upb_Decoder_DecodeVarint(d, ptr, &tmp);
if (state_mask & kUpb_HaveId) break; // Ignore dup.
state_mask |= kUpb_HaveId;
type_id = tmp;
if (state_mask & kUpb_HavePayload) {
upb_Decoder_AddMessageSetItem(d, msg, layout, type_id, preserved.data,
preserved.size);
}
break;
}
case kMessageTag: {
uint32_t size;
ptr = upb_Decoder_DecodeSize(d, ptr, &size);
const char* data = ptr;
ptr += size;
if (state_mask & kUpb_HavePayload) break; // Ignore dup.
state_mask |= kUpb_HavePayload;
if (state_mask & kUpb_HaveId) {
upb_Decoder_AddMessageSetItem(d, msg, layout, type_id, data, size);
} else {
// Out of order, we must preserve the payload.
preserved.data = data;
preserved.size = size;
}
break;
}
default:
// We do not preserve unexpected fields inside a message set item.
ptr = upb_Decoder_SkipField(d, ptr, tag);
break;
}
}
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
static const upb_MiniTableField* _upb_Decoder_FindField(upb_Decoder* d,
const upb_MiniTable* t,
uint32_t field_number,
int* last_field_index) {
static upb_MiniTableField none = {
0, 0, 0, 0, kUpb_FakeFieldType_FieldNotFound, 0};
if (t == NULL) return &none;
size_t idx = ((size_t)field_number) - 1; // 0 wraps to SIZE_MAX
if (idx < t->UPB_PRIVATE(dense_below)) {
// Fastest case: index into dense fields.
goto found;
}
if (t->UPB_PRIVATE(dense_below) < t->UPB_PRIVATE(field_count)) {
// Linear search non-dense fields. Resume scanning from last_field_index
// since fields are usually in order.
size_t last = *last_field_index;
for (idx = last; idx < t->UPB_PRIVATE(field_count); idx++) {
if (t->UPB_PRIVATE(fields)[idx].UPB_PRIVATE(number) == field_number) {
goto found;
}
}
for (idx = t->UPB_PRIVATE(dense_below); idx < last; idx++) {
if (t->UPB_PRIVATE(fields)[idx].UPB_PRIVATE(number) == field_number) {
goto found;
}
}
}
if (d->extreg) {
switch (t->UPB_PRIVATE(ext)) {
case kUpb_ExtMode_Extendable: {
const upb_MiniTableExtension* ext =
upb_ExtensionRegistry_Lookup(d->extreg, t, field_number);
if (ext) return &ext->UPB_PRIVATE(field);
break;
}
case kUpb_ExtMode_IsMessageSet:
if (field_number == kUpb_MsgSet_Item) {
static upb_MiniTableField item = {
0, 0, 0, 0, kUpb_FakeFieldType_MessageSetItem, 0};
return &item;
}
break;
}
}
return &none; // Unknown field.
found:
UPB_ASSERT(t->UPB_PRIVATE(fields)[idx].UPB_PRIVATE(number) == field_number);
*last_field_index = idx;
return &t->UPB_PRIVATE(fields)[idx];
}
static int _upb_Decoder_GetVarintOp(const upb_MiniTableField* field) {
static const int8_t kVarintOps[] = {
[kUpb_FakeFieldType_FieldNotFound] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Double] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Float] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Int64] = kUpb_DecodeOp_Scalar8Byte,
[kUpb_FieldType_UInt64] = kUpb_DecodeOp_Scalar8Byte,
[kUpb_FieldType_Int32] = kUpb_DecodeOp_Scalar4Byte,
[kUpb_FieldType_Fixed64] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Fixed32] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Bool] = kUpb_DecodeOp_Scalar1Byte,
[kUpb_FieldType_String] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Group] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Message] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Bytes] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_UInt32] = kUpb_DecodeOp_Scalar4Byte,
[kUpb_FieldType_Enum] = kUpb_DecodeOp_Enum,
[kUpb_FieldType_SFixed32] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_SFixed64] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_SInt32] = kUpb_DecodeOp_Scalar4Byte,
[kUpb_FieldType_SInt64] = kUpb_DecodeOp_Scalar8Byte,
[kUpb_FakeFieldType_MessageSetItem] = kUpb_DecodeOp_UnknownField,
};
return kVarintOps[field->UPB_PRIVATE(descriptortype)];
}
UPB_FORCEINLINE
void _upb_Decoder_CheckUnlinked(upb_Decoder* d, const upb_MiniTable* mt,
const upb_MiniTableField* field, int* op) {
// If sub-message is not linked, treat as unknown.
if (field->UPB_PRIVATE(mode) & kUpb_LabelFlags_IsExtension) return;
const upb_MiniTable* mt_sub =
_upb_MiniTableSubs_MessageByField(mt->UPB_PRIVATE(subs), field);
if ((d->options & kUpb_DecodeOption_ExperimentalAllowUnlinked) ||
!UPB_PRIVATE(_upb_MiniTable_IsEmpty)(mt_sub)) {
return;
}
#ifndef NDEBUG
const upb_MiniTableField* oneof = upb_MiniTable_GetOneof(mt, field);
if (oneof) {
// All other members of the oneof must be message fields that are also
// unlinked.
do {
UPB_ASSERT(upb_MiniTableField_CType(oneof) == kUpb_CType_Message);
const upb_MiniTable* oneof_sub =
*mt->UPB_PRIVATE(subs)[oneof->UPB_PRIVATE(submsg_index)].UPB_PRIVATE(
submsg);
UPB_ASSERT(!oneof_sub);
} while (upb_MiniTable_NextOneofField(mt, &oneof));
}
#endif // NDEBUG
*op = kUpb_DecodeOp_UnknownField;
}
UPB_FORCEINLINE
void _upb_Decoder_MaybeVerifyUtf8(upb_Decoder* d,
const upb_MiniTableField* field, int* op) {
if ((field->UPB_ONLYBITS(mode) & kUpb_LabelFlags_IsAlternate) &&
UPB_UNLIKELY(d->options & kUpb_DecodeOption_AlwaysValidateUtf8))
*op = kUpb_DecodeOp_String;
}
static int _upb_Decoder_GetDelimitedOp(upb_Decoder* d, const upb_MiniTable* mt,
const upb_MiniTableField* field) {
enum { kRepeatedBase = 19 };
static const int8_t kDelimitedOps[] = {
// For non-repeated field type.
[kUpb_FakeFieldType_FieldNotFound] =
kUpb_DecodeOp_UnknownField, // Field not found.
[kUpb_FieldType_Double] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Float] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Int64] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_UInt64] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Int32] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Fixed64] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Fixed32] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Bool] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_String] = kUpb_DecodeOp_String,
[kUpb_FieldType_Group] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Message] = kUpb_DecodeOp_SubMessage,
[kUpb_FieldType_Bytes] = kUpb_DecodeOp_Bytes,
[kUpb_FieldType_UInt32] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_Enum] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_SFixed32] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_SFixed64] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_SInt32] = kUpb_DecodeOp_UnknownField,
[kUpb_FieldType_SInt64] = kUpb_DecodeOp_UnknownField,
[kUpb_FakeFieldType_MessageSetItem] = kUpb_DecodeOp_UnknownField,
// For repeated field type.
[kRepeatedBase + kUpb_FieldType_Double] = OP_FIXPCK_LG2(3),
[kRepeatedBase + kUpb_FieldType_Float] = OP_FIXPCK_LG2(2),
[kRepeatedBase + kUpb_FieldType_Int64] = OP_VARPCK_LG2(3),
[kRepeatedBase + kUpb_FieldType_UInt64] = OP_VARPCK_LG2(3),
[kRepeatedBase + kUpb_FieldType_Int32] = OP_VARPCK_LG2(2),
[kRepeatedBase + kUpb_FieldType_Fixed64] = OP_FIXPCK_LG2(3),
[kRepeatedBase + kUpb_FieldType_Fixed32] = OP_FIXPCK_LG2(2),
[kRepeatedBase + kUpb_FieldType_Bool] = OP_VARPCK_LG2(0),
[kRepeatedBase + kUpb_FieldType_String] = kUpb_DecodeOp_String,
[kRepeatedBase + kUpb_FieldType_Group] = kUpb_DecodeOp_SubMessage,
[kRepeatedBase + kUpb_FieldType_Message] = kUpb_DecodeOp_SubMessage,
[kRepeatedBase + kUpb_FieldType_Bytes] = kUpb_DecodeOp_Bytes,
[kRepeatedBase + kUpb_FieldType_UInt32] = OP_VARPCK_LG2(2),
[kRepeatedBase + kUpb_FieldType_Enum] = kUpb_DecodeOp_PackedEnum,
[kRepeatedBase + kUpb_FieldType_SFixed32] = OP_FIXPCK_LG2(2),
[kRepeatedBase + kUpb_FieldType_SFixed64] = OP_FIXPCK_LG2(3),
[kRepeatedBase + kUpb_FieldType_SInt32] = OP_VARPCK_LG2(2),
[kRepeatedBase + kUpb_FieldType_SInt64] = OP_VARPCK_LG2(3),
// Omitting kUpb_FakeFieldType_MessageSetItem, because we never emit a
// repeated msgset type
};
int ndx = field->UPB_PRIVATE(descriptortype);
if (upb_MiniTableField_IsArray(field)) ndx += kRepeatedBase;
int op = kDelimitedOps[ndx];
if (op == kUpb_DecodeOp_SubMessage) {
_upb_Decoder_CheckUnlinked(d, mt, field, &op);
} else if (op == kUpb_DecodeOp_Bytes) {
_upb_Decoder_MaybeVerifyUtf8(d, field, &op);
}
return op;
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeWireValue(upb_Decoder* d, const char* ptr,
const upb_MiniTable* mt,
const upb_MiniTableField* field,
int wire_type, wireval* val, int* op) {
static const unsigned kFixed32OkMask = (1 << kUpb_FieldType_Float) |
(1 << kUpb_FieldType_Fixed32) |
(1 << kUpb_FieldType_SFixed32);
static const unsigned kFixed64OkMask = (1 << kUpb_FieldType_Double) |
(1 << kUpb_FieldType_Fixed64) |
(1 << kUpb_FieldType_SFixed64);
switch (wire_type) {
case kUpb_WireType_Varint:
ptr = _upb_Decoder_DecodeVarint(d, ptr, &val->uint64_val);
*op = _upb_Decoder_GetVarintOp(field);
_upb_Decoder_Munge(field->UPB_PRIVATE(descriptortype), val);
return ptr;
case kUpb_WireType_32Bit:
*op = kUpb_DecodeOp_Scalar4Byte;
if (((1 << field->UPB_PRIVATE(descriptortype)) & kFixed32OkMask) == 0) {
*op = kUpb_DecodeOp_UnknownField;
}
return upb_WireReader_ReadFixed32(ptr, &val->uint32_val);
case kUpb_WireType_64Bit:
*op = kUpb_DecodeOp_Scalar8Byte;
if (((1 << field->UPB_PRIVATE(descriptortype)) & kFixed64OkMask) == 0) {
*op = kUpb_DecodeOp_UnknownField;
}
return upb_WireReader_ReadFixed64(ptr, &val->uint64_val);
case kUpb_WireType_Delimited:
ptr = upb_Decoder_DecodeSize(d, ptr, &val->size);
*op = _upb_Decoder_GetDelimitedOp(d, mt, field);
return ptr;
case kUpb_WireType_StartGroup:
val->uint32_val = field->UPB_PRIVATE(number);
if (field->UPB_PRIVATE(descriptortype) == kUpb_FieldType_Group) {
*op = kUpb_DecodeOp_SubMessage;
_upb_Decoder_CheckUnlinked(d, mt, field, op);
} else if (field->UPB_PRIVATE(descriptortype) ==
kUpb_FakeFieldType_MessageSetItem) {
*op = kUpb_DecodeOp_MessageSetItem;
} else {
*op = kUpb_DecodeOp_UnknownField;
}
return ptr;
default:
break;
}
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
}
UPB_FORCEINLINE
const char* _upb_Decoder_DecodeKnownField(upb_Decoder* d, const char* ptr,
upb_Message* msg,
const upb_MiniTable* layout,
const upb_MiniTableField* field,
int op, wireval* val) {
const upb_MiniTableSubInternal* subs = layout->UPB_PRIVATE(subs);
uint8_t mode = field->UPB_PRIVATE(mode);
upb_MiniTableSubInternal ext_sub;
if (UPB_UNLIKELY(mode & kUpb_LabelFlags_IsExtension)) {
const upb_MiniTableExtension* ext_layout =
(const upb_MiniTableExtension*)field;
upb_Extension* ext = UPB_PRIVATE(_upb_Message_GetOrCreateExtension)(
msg, ext_layout, &d->arena);
if (UPB_UNLIKELY(!ext)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
d->original_msg = msg;
msg = (upb_Message*)&ext->data;
if (upb_MiniTableField_IsSubMessage(&ext->ext->UPB_PRIVATE(field))) {
ext_sub.UPB_PRIVATE(submsg) =
&ext->ext->UPB_PRIVATE(sub).UPB_PRIVATE(submsg);
} else {
ext_sub.UPB_PRIVATE(subenum) =
ext->ext->UPB_PRIVATE(sub).UPB_PRIVATE(subenum);
}
subs = &ext_sub;
}
switch (mode & kUpb_FieldMode_Mask) {
case kUpb_FieldMode_Array:
return _upb_Decoder_DecodeToArray(d, ptr, msg, subs, field, val, op);
case kUpb_FieldMode_Map:
return _upb_Decoder_DecodeToMap(d, ptr, msg, subs, field, val);
case kUpb_FieldMode_Scalar:
return _upb_Decoder_DecodeToSubMessage(d, ptr, msg, subs, field, val, op);
default:
UPB_UNREACHABLE();
}
}
static const char* _upb_Decoder_ReverseSkipVarint(const char* ptr,
uint32_t val) {
uint32_t seen = 0;
do {
ptr--;
seen <<= 7;
seen |= *ptr & 0x7f;
} while (seen != val);
return ptr;
}
static const char* _upb_Decoder_DecodeUnknownField(upb_Decoder* d,
const char* ptr,
upb_Message* msg,
int field_number,
int wire_type, wireval val) {
if (field_number == 0) _upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed);
// Since unknown fields are the uncommon case, we do a little extra work here
// to walk backwards through the buffer to find the field start. This frees
// up a register in the fast paths (when the field is known), which leads to
// significant speedups in benchmarks. Note that ptr may point into the slop
// space, beyond the normal end of the input buffer.
const char* start = ptr;
if (wire_type == kUpb_WireType_Delimited) ptr += val.size;
if (msg) {
switch (wire_type) {
case kUpb_WireType_Varint:
case kUpb_WireType_Delimited:
start--;
while (start[-1] & 0x80) start--;
break;
case kUpb_WireType_32Bit:
start -= 4;
break;
case kUpb_WireType_64Bit:
start -= 8;
break;
default:
break;
}
assert(start == d->debug_valstart);
uint32_t tag = ((uint32_t)field_number << 3) | wire_type;
start = _upb_Decoder_ReverseSkipVarint(start, tag);
assert(start == d->debug_tagstart);
const char* input_start =
upb_EpsCopyInputStream_GetInputPtr(&d->input, start);
if (wire_type == kUpb_WireType_StartGroup) {
ptr = _upb_Decoder_DecodeUnknownGroup(d, ptr, field_number);
}
// Normally, bounds checks for fixed or varint fields are performed after
// the field is parsed; it's OK for the field to overrun the end of the
// buffer, because it'll just read into slop space. However, because this
// path reads bytes from the input buffer rather than the patch buffer,
// bounds checks are needed before adding the unknown field.
_upb_Decoder_IsDone(d, &ptr);
const char* input_ptr = upb_EpsCopyInputStream_GetInputPtr(&d->input, ptr);
if (!UPB_PRIVATE(_upb_Message_AddUnknown)(
msg, input_start, input_ptr - input_start, &d->arena)) {
_upb_Decoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory);
}
} else if (wire_type == kUpb_WireType_StartGroup) {
ptr = _upb_Decoder_DecodeUnknownGroup(d, ptr, field_number);
}
return ptr;
}
UPB_NOINLINE
static const char* _upb_Decoder_DecodeMessage(upb_Decoder* d, const char* ptr,
upb_Message* msg,
const upb_MiniTable* layout) {
int last_field_index = 0;
#if UPB_FASTTABLE
// The first time we want to skip fast dispatch, because we may have just been
// invoked by the fast parser to handle a case that it bailed on.
if (!_upb_Decoder_IsDone(d, &ptr)) goto nofast;
#endif
while (!_upb_Decoder_IsDone(d, &ptr)) {
uint32_t tag;
const upb_MiniTableField* field;
int field_number;
int wire_type;
wireval val;
int op;
if (_upb_Decoder_TryFastDispatch(d, &ptr, msg, layout)) break;
#if UPB_FASTTABLE
nofast:
#endif
#ifndef NDEBUG
d->debug_tagstart = ptr;
#endif
UPB_ASSERT(ptr < d->input.limit_ptr);
ptr = _upb_Decoder_DecodeTag(d, ptr, &tag);
field_number = tag >> 3;
wire_type = tag & 7;
#ifndef NDEBUG
d->debug_valstart = ptr;
#endif
if (wire_type == kUpb_WireType_EndGroup) {
d->end_group = field_number;
return ptr;
}
field = _upb_Decoder_FindField(d, layout, field_number, &last_field_index);
ptr = _upb_Decoder_DecodeWireValue(d, ptr, layout, field, wire_type, &val,
&op);
if (op >= 0) {
ptr = _upb_Decoder_DecodeKnownField(d, ptr, msg, layout, field, op, &val);
} else {
switch (op) {
case kUpb_DecodeOp_UnknownField:
ptr = _upb_Decoder_DecodeUnknownField(d, ptr, msg, field_number,
wire_type, val);
break;
case kUpb_DecodeOp_MessageSetItem:
ptr = upb_Decoder_DecodeMessageSetItem(d, ptr, msg, layout);
break;
}
}
}
return UPB_UNLIKELY(layout && layout->UPB_PRIVATE(required_count))
? _upb_Decoder_CheckRequired(d, ptr, msg, layout)
: ptr;
}
const char* _upb_FastDecoder_DecodeGeneric(struct upb_Decoder* d,
const char* ptr, upb_Message* msg,
intptr_t table, uint64_t hasbits,
uint64_t data) {
(void)data;
*(uint32_t*)msg |= hasbits;
return _upb_Decoder_DecodeMessage(d, ptr, msg, decode_totablep(table));
}
static upb_DecodeStatus _upb_Decoder_DecodeTop(struct upb_Decoder* d,
const char* buf,
upb_Message* msg,
const upb_MiniTable* m) {
if (!_upb_Decoder_TryFastDispatch(d, &buf, msg, m)) {
_upb_Decoder_DecodeMessage(d, buf, msg, m);
}
if (d->end_group != DECODE_NOGROUP) return kUpb_DecodeStatus_Malformed;
if (d->missing_required) return kUpb_DecodeStatus_MissingRequired;
return kUpb_DecodeStatus_Ok;
}
UPB_NOINLINE
const char* _upb_Decoder_IsDoneFallback(upb_EpsCopyInputStream* e,
const char* ptr, int overrun) {
return _upb_EpsCopyInputStream_IsDoneFallbackInline(
e, ptr, overrun, _upb_Decoder_BufferFlipCallback);
}
static upb_DecodeStatus upb_Decoder_Decode(upb_Decoder* const decoder,
const char* const buf,
upb_Message* const msg,
const upb_MiniTable* const m,
upb_Arena* const arena) {
if (UPB_SETJMP(decoder->err) == 0) {
decoder->status = _upb_Decoder_DecodeTop(decoder, buf, msg, m);
} else {
UPB_ASSERT(decoder->status != kUpb_DecodeStatus_Ok);
}
UPB_PRIVATE(_upb_Arena_SwapOut)(arena, &decoder->arena);
return decoder->status;
}
upb_DecodeStatus upb_Decode(const char* buf, size_t size, upb_Message* msg,
const upb_MiniTable* mt,
const upb_ExtensionRegistry* extreg, int options,
upb_Arena* arena) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_Decoder decoder;
unsigned depth = (unsigned)options >> 16;
upb_EpsCopyInputStream_Init(&decoder.input, &buf, size,
options & kUpb_DecodeOption_AliasString);
decoder.extreg = extreg;
decoder.depth = depth ? depth : kUpb_WireFormat_DefaultDepthLimit;
decoder.end_group = DECODE_NOGROUP;
decoder.options = (uint16_t)options;
decoder.missing_required = false;
decoder.status = kUpb_DecodeStatus_Ok;
// Violating the encapsulation of the arena for performance reasons.
// This is a temporary arena that we swap into and swap out of when we are
// done. The temporary arena only needs to be able to handle allocation,
// not fuse or free, so it does not need many of the members to be initialized
// (particularly parent_or_count).
UPB_PRIVATE(_upb_Arena_SwapIn)(&decoder.arena, arena);
return upb_Decoder_Decode(&decoder, buf, msg, mt, arena);
}
upb_DecodeStatus upb_DecodeLengthPrefixed(const char* buf, size_t size,
upb_Message* msg,
size_t* num_bytes_read,
const upb_MiniTable* mt,
const upb_ExtensionRegistry* extreg,
int options, upb_Arena* arena) {
// To avoid needing to make a Decoder just to decode the initial length,
// hand-decode the leading varint for the message length here.
uint64_t msg_len = 0;
for (size_t i = 0;; ++i) {
if (i >= size || i > 9) {
return kUpb_DecodeStatus_Malformed;
}
uint64_t b = *buf;
buf++;
msg_len += (b & 0x7f) << (i * 7);
if ((b & 0x80) == 0) {
*num_bytes_read = i + 1 + msg_len;
break;
}
}
// If the total number of bytes we would read (= the bytes from the varint
// plus however many bytes that varint says we should read) is larger then the
// input buffer then error as malformed.
if (*num_bytes_read > size) {
return kUpb_DecodeStatus_Malformed;
}
if (msg_len > INT32_MAX) {
return kUpb_DecodeStatus_Malformed;
}
return upb_Decode(buf, msg_len, msg, mt, extreg, options, arena);
}
const char* upb_DecodeStatus_String(upb_DecodeStatus status) {
switch (status) {
case kUpb_DecodeStatus_Ok:
return "Ok";
case kUpb_DecodeStatus_Malformed:
return "Wire format was corrupt";
case kUpb_DecodeStatus_OutOfMemory:
return "Arena alloc failed";
case kUpb_DecodeStatus_BadUtf8:
return "String field had bad UTF-8";
case kUpb_DecodeStatus_MaxDepthExceeded:
return "Exceeded upb_DecodeOptions_MaxDepth";
case kUpb_DecodeStatus_MissingRequired:
return "Missing required field";
case kUpb_DecodeStatus_UnlinkedSubMessage:
return "Unlinked sub-message field was present";
default:
return "Unknown decode status";
}
}
#undef OP_FIXPCK_LG2
#undef OP_VARPCK_LG2
// We encode backwards, to avoid pre-computing lengths (one-pass encode).
#include <setjmp.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
// Must be last.
// Returns the MiniTable corresponding to a given MiniTableField
// from an array of MiniTableSubs.
static const upb_MiniTable* _upb_Encoder_GetSubMiniTable(
const upb_MiniTableSubInternal* subs, const upb_MiniTableField* field) {
return *subs[field->UPB_PRIVATE(submsg_index)].UPB_PRIVATE(submsg);
}
#define UPB_PB_VARINT_MAX_LEN 10
UPB_NOINLINE
static size_t encode_varint64(uint64_t val, char* buf) {
size_t i = 0;
do {
uint8_t byte = val & 0x7fU;
val >>= 7;
if (val) byte |= 0x80U;
buf[i++] = byte;
} while (val);
return i;
}
static uint32_t encode_zz32(int32_t n) {
return ((uint32_t)n << 1) ^ (n >> 31);
}
static uint64_t encode_zz64(int64_t n) {
return ((uint64_t)n << 1) ^ (n >> 63);
}
typedef struct {
upb_EncodeStatus status;
jmp_buf err;
upb_Arena* arena;
char *buf, *ptr, *limit;
int options;
int depth;
_upb_mapsorter sorter;
} upb_encstate;
static size_t upb_roundup_pow2(size_t bytes) {
size_t ret = 128;
while (ret < bytes) {
ret *= 2;
}
return ret;
}
UPB_NORETURN static void encode_err(upb_encstate* e, upb_EncodeStatus s) {
UPB_ASSERT(s != kUpb_EncodeStatus_Ok);
e->status = s;
UPB_LONGJMP(e->err, 1);
}
UPB_NOINLINE
static void encode_growbuffer(upb_encstate* e, size_t bytes) {
size_t old_size = e->limit - e->buf;
size_t new_size = upb_roundup_pow2(bytes + (e->limit - e->ptr));
char* new_buf = upb_Arena_Realloc(e->arena, e->buf, old_size, new_size);
if (!new_buf) encode_err(e, kUpb_EncodeStatus_OutOfMemory);
// We want previous data at the end, realloc() put it at the beginning.
// TODO: This is somewhat inefficient since we are copying twice.
// Maybe create a realloc() that copies to the end of the new buffer?
if (old_size > 0) {
memmove(new_buf + new_size - old_size, e->buf, old_size);
}
e->ptr = new_buf + new_size - (e->limit - e->ptr);
e->limit = new_buf + new_size;
e->buf = new_buf;
e->ptr -= bytes;
}
/* Call to ensure that at least "bytes" bytes are available for writing at
* e->ptr. Returns false if the bytes could not be allocated. */
UPB_FORCEINLINE
void encode_reserve(upb_encstate* e, size_t bytes) {
if ((size_t)(e->ptr - e->buf) < bytes) {
encode_growbuffer(e, bytes);
return;
}
e->ptr -= bytes;
}
/* Writes the given bytes to the buffer, handling reserve/advance. */
static void encode_bytes(upb_encstate* e, const void* data, size_t len) {
if (len == 0) return; /* memcpy() with zero size is UB */
encode_reserve(e, len);
memcpy(e->ptr, data, len);
}
static void encode_fixed64(upb_encstate* e, uint64_t val) {
val = upb_BigEndian64(val);
encode_bytes(e, &val, sizeof(uint64_t));
}
static void encode_fixed32(upb_encstate* e, uint32_t val) {
val = upb_BigEndian32(val);
encode_bytes(e, &val, sizeof(uint32_t));
}
UPB_NOINLINE
static void encode_longvarint(upb_encstate* e, uint64_t val) {
size_t len;
char* start;
encode_reserve(e, UPB_PB_VARINT_MAX_LEN);
len = encode_varint64(val, e->ptr);
start = e->ptr + UPB_PB_VARINT_MAX_LEN - len;
memmove(start, e->ptr, len);
e->ptr = start;
}
UPB_FORCEINLINE
void encode_varint(upb_encstate* e, uint64_t val) {
if (val < 128 && e->ptr != e->buf) {
--e->ptr;
*e->ptr = val;
} else {
encode_longvarint(e, val);
}
}
static void encode_double(upb_encstate* e, double d) {
uint64_t u64;
UPB_ASSERT(sizeof(double) == sizeof(uint64_t));
memcpy(&u64, &d, sizeof(uint64_t));
encode_fixed64(e, u64);
}
static void encode_float(upb_encstate* e, float d) {
uint32_t u32;
UPB_ASSERT(sizeof(float) == sizeof(uint32_t));
memcpy(&u32, &d, sizeof(uint32_t));
encode_fixed32(e, u32);
}
static void encode_tag(upb_encstate* e, uint32_t field_number,
uint8_t wire_type) {
encode_varint(e, (field_number << 3) | wire_type);
}
static void encode_fixedarray(upb_encstate* e, const upb_Array* arr,
size_t elem_size, uint32_t tag) {
size_t bytes = upb_Array_Size(arr) * elem_size;
const char* data = upb_Array_DataPtr(arr);
const char* ptr = data + bytes - elem_size;
if (tag || !upb_IsLittleEndian()) {
while (true) {
if (elem_size == 4) {
uint32_t val;
memcpy(&val, ptr, sizeof(val));
val = upb_BigEndian32(val);
encode_bytes(e, &val, elem_size);
} else {
UPB_ASSERT(elem_size == 8);
uint64_t val;
memcpy(&val, ptr, sizeof(val));
val = upb_BigEndian64(val);
encode_bytes(e, &val, elem_size);
}
if (tag) encode_varint(e, tag);
if (ptr == data) break;
ptr -= elem_size;
}
} else {
encode_bytes(e, data, bytes);
}
}
static void encode_message(upb_encstate* e, const upb_Message* msg,
const upb_MiniTable* m, size_t* size);
static void encode_TaggedMessagePtr(upb_encstate* e,
upb_TaggedMessagePtr tagged,
const upb_MiniTable* m, size_t* size) {
if (upb_TaggedMessagePtr_IsEmpty(tagged)) {
m = UPB_PRIVATE(_upb_MiniTable_Empty)();
}
encode_message(e, UPB_PRIVATE(_upb_TaggedMessagePtr_GetMessage)(tagged), m,
size);
}
static void encode_scalar(upb_encstate* e, const void* _field_mem,
const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* f) {
const char* field_mem = _field_mem;
int wire_type;
#define CASE(ctype, type, wtype, encodeval) \
{ \
ctype val = *(ctype*)field_mem; \
encode_##type(e, encodeval); \
wire_type = wtype; \
break; \
}
switch (f->UPB_PRIVATE(descriptortype)) {
case kUpb_FieldType_Double:
CASE(double, double, kUpb_WireType_64Bit, val);
case kUpb_FieldType_Float:
CASE(float, float, kUpb_WireType_32Bit, val);
case kUpb_FieldType_Int64:
case kUpb_FieldType_UInt64:
CASE(uint64_t, varint, kUpb_WireType_Varint, val);
case kUpb_FieldType_UInt32:
CASE(uint32_t, varint, kUpb_WireType_Varint, val);
case kUpb_FieldType_Int32:
case kUpb_FieldType_Enum:
CASE(int32_t, varint, kUpb_WireType_Varint, (int64_t)val);
case kUpb_FieldType_SFixed64:
case kUpb_FieldType_Fixed64:
CASE(uint64_t, fixed64, kUpb_WireType_64Bit, val);
case kUpb_FieldType_Fixed32:
case kUpb_FieldType_SFixed32:
CASE(uint32_t, fixed32, kUpb_WireType_32Bit, val);
case kUpb_FieldType_Bool:
CASE(bool, varint, kUpb_WireType_Varint, val);
case kUpb_FieldType_SInt32:
CASE(int32_t, varint, kUpb_WireType_Varint, encode_zz32(val));
case kUpb_FieldType_SInt64:
CASE(int64_t, varint, kUpb_WireType_Varint, encode_zz64(val));
case kUpb_FieldType_String:
case kUpb_FieldType_Bytes: {
upb_StringView view = *(upb_StringView*)field_mem;
encode_bytes(e, view.data, view.size);
encode_varint(e, view.size);
wire_type = kUpb_WireType_Delimited;
break;
}
case kUpb_FieldType_Group: {
size_t size;
upb_TaggedMessagePtr submsg = *(upb_TaggedMessagePtr*)field_mem;
const upb_MiniTable* subm = _upb_Encoder_GetSubMiniTable(subs, f);
if (submsg == 0) {
return;
}
if (--e->depth == 0) encode_err(e, kUpb_EncodeStatus_MaxDepthExceeded);
encode_tag(e, upb_MiniTableField_Number(f), kUpb_WireType_EndGroup);
encode_TaggedMessagePtr(e, submsg, subm, &size);
wire_type = kUpb_WireType_StartGroup;
e->depth++;
break;
}
case kUpb_FieldType_Message: {
size_t size;
upb_TaggedMessagePtr submsg = *(upb_TaggedMessagePtr*)field_mem;
const upb_MiniTable* subm = _upb_Encoder_GetSubMiniTable(subs, f);
if (submsg == 0) {
return;
}
if (--e->depth == 0) encode_err(e, kUpb_EncodeStatus_MaxDepthExceeded);
encode_TaggedMessagePtr(e, submsg, subm, &size);
encode_varint(e, size);
wire_type = kUpb_WireType_Delimited;
e->depth++;
break;
}
default:
UPB_UNREACHABLE();
}
#undef CASE
encode_tag(e, upb_MiniTableField_Number(f), wire_type);
}
static void encode_array(upb_encstate* e, const upb_Message* msg,
const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* f) {
const upb_Array* arr = *UPB_PTR_AT(msg, f->UPB_PRIVATE(offset), upb_Array*);
bool packed = upb_MiniTableField_IsPacked(f);
size_t pre_len = e->limit - e->ptr;
if (arr == NULL || upb_Array_Size(arr) == 0) {
return;
}
#define VARINT_CASE(ctype, encode) \
{ \
const ctype* start = upb_Array_DataPtr(arr); \
const ctype* ptr = start + upb_Array_Size(arr); \
uint32_t tag = \
packed ? 0 : (f->UPB_PRIVATE(number) << 3) | kUpb_WireType_Varint; \
do { \
ptr--; \
encode_varint(e, encode); \
if (tag) encode_varint(e, tag); \
} while (ptr != start); \
} \
break;
#define TAG(wire_type) (packed ? 0 : (f->UPB_PRIVATE(number) << 3 | wire_type))
switch (f->UPB_PRIVATE(descriptortype)) {
case kUpb_FieldType_Double:
encode_fixedarray(e, arr, sizeof(double), TAG(kUpb_WireType_64Bit));
break;
case kUpb_FieldType_Float:
encode_fixedarray(e, arr, sizeof(float), TAG(kUpb_WireType_32Bit));
break;
case kUpb_FieldType_SFixed64:
case kUpb_FieldType_Fixed64:
encode_fixedarray(e, arr, sizeof(uint64_t), TAG(kUpb_WireType_64Bit));
break;
case kUpb_FieldType_Fixed32:
case kUpb_FieldType_SFixed32:
encode_fixedarray(e, arr, sizeof(uint32_t), TAG(kUpb_WireType_32Bit));
break;
case kUpb_FieldType_Int64:
case kUpb_FieldType_UInt64:
VARINT_CASE(uint64_t, *ptr);
case kUpb_FieldType_UInt32:
VARINT_CASE(uint32_t, *ptr);
case kUpb_FieldType_Int32:
case kUpb_FieldType_Enum:
VARINT_CASE(int32_t, (int64_t)*ptr);
case kUpb_FieldType_Bool:
VARINT_CASE(bool, *ptr);
case kUpb_FieldType_SInt32:
VARINT_CASE(int32_t, encode_zz32(*ptr));
case kUpb_FieldType_SInt64:
VARINT_CASE(int64_t, encode_zz64(*ptr));
case kUpb_FieldType_String:
case kUpb_FieldType_Bytes: {
const upb_StringView* start = upb_Array_DataPtr(arr);
const upb_StringView* ptr = start + upb_Array_Size(arr);
do {
ptr--;
encode_bytes(e, ptr->data, ptr->size);
encode_varint(e, ptr->size);
encode_tag(e, upb_MiniTableField_Number(f), kUpb_WireType_Delimited);
} while (ptr != start);
return;
}
case kUpb_FieldType_Group: {
const upb_TaggedMessagePtr* start = upb_Array_DataPtr(arr);
const upb_TaggedMessagePtr* ptr = start + upb_Array_Size(arr);
const upb_MiniTable* subm = _upb_Encoder_GetSubMiniTable(subs, f);
if (--e->depth == 0) encode_err(e, kUpb_EncodeStatus_MaxDepthExceeded);
do {
size_t size;
ptr--;
encode_tag(e, upb_MiniTableField_Number(f), kUpb_WireType_EndGroup);
encode_TaggedMessagePtr(e, *ptr, subm, &size);
encode_tag(e, upb_MiniTableField_Number(f), kUpb_WireType_StartGroup);
} while (ptr != start);
e->depth++;
return;
}
case kUpb_FieldType_Message: {
const upb_TaggedMessagePtr* start = upb_Array_DataPtr(arr);
const upb_TaggedMessagePtr* ptr = start + upb_Array_Size(arr);
const upb_MiniTable* subm = _upb_Encoder_GetSubMiniTable(subs, f);
if (--e->depth == 0) encode_err(e, kUpb_EncodeStatus_MaxDepthExceeded);
do {
size_t size;
ptr--;
encode_TaggedMessagePtr(e, *ptr, subm, &size);
encode_varint(e, size);
encode_tag(e, upb_MiniTableField_Number(f), kUpb_WireType_Delimited);
} while (ptr != start);
e->depth++;
return;
}
}
#undef VARINT_CASE
if (packed) {
encode_varint(e, e->limit - e->ptr - pre_len);
encode_tag(e, upb_MiniTableField_Number(f), kUpb_WireType_Delimited);
}
}
static void encode_mapentry(upb_encstate* e, uint32_t number,
const upb_MiniTable* layout,
const upb_MapEntry* ent) {
const upb_MiniTableField* key_field = upb_MiniTable_MapKey(layout);
const upb_MiniTableField* val_field = upb_MiniTable_MapValue(layout);
size_t pre_len = e->limit - e->ptr;
size_t size;
encode_scalar(e, &ent->v, layout->UPB_PRIVATE(subs), val_field);
encode_scalar(e, &ent->k, layout->UPB_PRIVATE(subs), key_field);
size = (e->limit - e->ptr) - pre_len;
encode_varint(e, size);
encode_tag(e, number, kUpb_WireType_Delimited);
}
static void encode_map(upb_encstate* e, const upb_Message* msg,
const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* f) {
const upb_Map* map = *UPB_PTR_AT(msg, f->UPB_PRIVATE(offset), const upb_Map*);
const upb_MiniTable* layout = _upb_Encoder_GetSubMiniTable(subs, f);
UPB_ASSERT(upb_MiniTable_FieldCount(layout) == 2);
if (!map || !upb_Map_Size(map)) return;
if (e->options & kUpb_EncodeOption_Deterministic) {
_upb_sortedmap sorted;
_upb_mapsorter_pushmap(
&e->sorter, layout->UPB_PRIVATE(fields)[0].UPB_PRIVATE(descriptortype),
map, &sorted);
upb_MapEntry ent;
while (_upb_sortedmap_next(&e->sorter, map, &sorted, &ent)) {
encode_mapentry(e, upb_MiniTableField_Number(f), layout, &ent);
}
_upb_mapsorter_popmap(&e->sorter, &sorted);
} else {
intptr_t iter = UPB_STRTABLE_BEGIN;
upb_StringView key;
upb_value val;
while (upb_strtable_next2(&map->table, &key, &val, &iter)) {
upb_MapEntry ent;
_upb_map_fromkey(key, &ent.k, map->key_size);
_upb_map_fromvalue(val, &ent.v, map->val_size);
encode_mapentry(e, upb_MiniTableField_Number(f), layout, &ent);
}
}
}
static bool encode_shouldencode(upb_encstate* e, const upb_Message* msg,
const upb_MiniTableField* f) {
if (f->presence == 0) {
// Proto3 presence or map/array.
const void* mem = UPB_PTR_AT(msg, f->UPB_PRIVATE(offset), void);
switch (UPB_PRIVATE(_upb_MiniTableField_GetRep)(f)) {
case kUpb_FieldRep_1Byte: {
char ch;
memcpy(&ch, mem, 1);
return ch != 0;
}
case kUpb_FieldRep_4Byte: {
uint32_t u32;
memcpy(&u32, mem, 4);
return u32 != 0;
}
case kUpb_FieldRep_8Byte: {
uint64_t u64;
memcpy(&u64, mem, 8);
return u64 != 0;
}
case kUpb_FieldRep_StringView: {
const upb_StringView* str = (const upb_StringView*)mem;
return str->size != 0;
}
default:
UPB_UNREACHABLE();
}
} else if (UPB_PRIVATE(_upb_MiniTableField_HasHasbit)(f)) {
// Proto2 presence: hasbit.
return UPB_PRIVATE(_upb_Message_GetHasbit)(msg, f);
} else {
// Field is in a oneof.
return UPB_PRIVATE(_upb_Message_GetOneofCase)(msg, f) ==
upb_MiniTableField_Number(f);
}
}
static void encode_field(upb_encstate* e, const upb_Message* msg,
const upb_MiniTableSubInternal* subs,
const upb_MiniTableField* field) {
switch (UPB_PRIVATE(_upb_MiniTableField_Mode)(field)) {
case kUpb_FieldMode_Array:
encode_array(e, msg, subs, field);
break;
case kUpb_FieldMode_Map:
encode_map(e, msg, subs, field);
break;
case kUpb_FieldMode_Scalar:
encode_scalar(e, UPB_PTR_AT(msg, field->UPB_PRIVATE(offset), void), subs,
field);
break;
default:
UPB_UNREACHABLE();
}
}
static void encode_msgset_item(upb_encstate* e, const upb_Extension* ext) {
size_t size;
encode_tag(e, kUpb_MsgSet_Item, kUpb_WireType_EndGroup);
encode_message(e, ext->data.msg_val,
upb_MiniTableExtension_GetSubMessage(ext->ext), &size);
encode_varint(e, size);
encode_tag(e, kUpb_MsgSet_Message, kUpb_WireType_Delimited);
encode_varint(e, upb_MiniTableExtension_Number(ext->ext));
encode_tag(e, kUpb_MsgSet_TypeId, kUpb_WireType_Varint);
encode_tag(e, kUpb_MsgSet_Item, kUpb_WireType_StartGroup);
}
static void encode_ext(upb_encstate* e, const upb_Extension* ext,
bool is_message_set) {
if (UPB_UNLIKELY(is_message_set)) {
encode_msgset_item(e, ext);
} else {
upb_MiniTableSubInternal sub;
if (upb_MiniTableField_IsSubMessage(&ext->ext->UPB_PRIVATE(field))) {
sub.UPB_PRIVATE(submsg) = &ext->ext->UPB_PRIVATE(sub).UPB_PRIVATE(submsg);
} else {
sub.UPB_PRIVATE(subenum) =
ext->ext->UPB_PRIVATE(sub).UPB_PRIVATE(subenum);
}
encode_field(e, (upb_Message*)&ext->data, &sub,
&ext->ext->UPB_PRIVATE(field));
}
}
static void encode_message(upb_encstate* e, const upb_Message* msg,
const upb_MiniTable* m, size_t* size) {
size_t pre_len = e->limit - e->ptr;
if (e->options & kUpb_EncodeOption_CheckRequired) {
if (m->UPB_PRIVATE(required_count)) {
if (!UPB_PRIVATE(_upb_Message_IsInitializedShallow)(msg, m)) {
encode_err(e, kUpb_EncodeStatus_MissingRequired);
}
}
}
if ((e->options & kUpb_EncodeOption_SkipUnknown) == 0) {
size_t unknown_size = 0;
uintptr_t iter = kUpb_Message_UnknownBegin;
upb_StringView unknown;
// Need to write in reverse order, but list is single-linked; scan to
// reserve capacity up front, then write in-order
while (upb_Message_NextUnknown(msg, &unknown, &iter)) {
unknown_size += unknown.size;
}
if (unknown_size != 0) {
encode_reserve(e, unknown_size);
char* ptr = e->ptr;
iter = kUpb_Message_UnknownBegin;
while (upb_Message_NextUnknown(msg, &unknown, &iter)) {
memcpy(ptr, unknown.data, unknown.size);
ptr += unknown.size;
}
}
}
if (m->UPB_PRIVATE(ext) != kUpb_ExtMode_NonExtendable) {
/* Encode all extensions together. Unlike C++, we do not attempt to keep
* these in field number order relative to normal fields or even to each
* other. */
size_t ext_count;
const upb_Extension* ext =
UPB_PRIVATE(_upb_Message_Getexts)(msg, &ext_count);
if (ext_count) {
if (e->options & kUpb_EncodeOption_Deterministic) {
_upb_sortedmap sorted;
_upb_mapsorter_pushexts(&e->sorter, ext, ext_count, &sorted);
while (_upb_sortedmap_nextext(&e->sorter, &sorted, &ext)) {
encode_ext(e, ext, m->UPB_PRIVATE(ext) == kUpb_ExtMode_IsMessageSet);
}
_upb_mapsorter_popmap(&e->sorter, &sorted);
} else {
const upb_Extension* end = ext + ext_count;
for (; ext != end; ext++) {
encode_ext(e, ext, m->UPB_PRIVATE(ext) == kUpb_ExtMode_IsMessageSet);
}
}
}
}
if (upb_MiniTable_FieldCount(m)) {
const upb_MiniTableField* f =
&m->UPB_PRIVATE(fields)[m->UPB_PRIVATE(field_count)];
const upb_MiniTableField* first = &m->UPB_PRIVATE(fields)[0];
while (f != first) {
f--;
if (encode_shouldencode(e, msg, f)) {
encode_field(e, msg, m->UPB_PRIVATE(subs), f);
}
}
}
*size = (e->limit - e->ptr) - pre_len;
}
static upb_EncodeStatus upb_Encoder_Encode(upb_encstate* const encoder,
const upb_Message* const msg,
const upb_MiniTable* const l,
char** const buf, size_t* const size,
bool prepend_len) {
// Unfortunately we must continue to perform hackery here because there are
// code paths which blindly copy the returned pointer without bothering to
// check for errors until much later (b/235839510). So we still set *buf to
// NULL on error and we still set it to non-NULL on a successful empty result.
if (UPB_SETJMP(encoder->err) == 0) {
size_t encoded_msg_size;
encode_message(encoder, msg, l, &encoded_msg_size);
if (prepend_len) {
encode_varint(encoder, encoded_msg_size);
}
*size = encoder->limit - encoder->ptr;
if (*size == 0) {
static char ch;
*buf = &ch;
} else {
UPB_ASSERT(encoder->ptr);
*buf = encoder->ptr;
}
} else {
UPB_ASSERT(encoder->status != kUpb_EncodeStatus_Ok);
*buf = NULL;
*size = 0;
}
_upb_mapsorter_destroy(&encoder->sorter);
return encoder->status;
}
static upb_EncodeStatus _upb_Encode(const upb_Message* msg,
const upb_MiniTable* l, int options,
upb_Arena* arena, char** buf, size_t* size,
bool prepend_len) {
upb_encstate e;
unsigned depth = (unsigned)options >> 16;
e.status = kUpb_EncodeStatus_Ok;
e.arena = arena;
e.buf = NULL;
e.limit = NULL;
e.ptr = NULL;
e.depth = depth ? depth : kUpb_WireFormat_DefaultDepthLimit;
e.options = options;
_upb_mapsorter_init(&e.sorter);
return upb_Encoder_Encode(&e, msg, l, buf, size, prepend_len);
}
upb_EncodeStatus upb_Encode(const upb_Message* msg, const upb_MiniTable* l,
int options, upb_Arena* arena, char** buf,
size_t* size) {
return _upb_Encode(msg, l, options, arena, buf, size, false);
}
upb_EncodeStatus upb_EncodeLengthPrefixed(const upb_Message* msg,
const upb_MiniTable* l, int options,
upb_Arena* arena, char** buf,
size_t* size) {
return _upb_Encode(msg, l, options, arena, buf, size, true);
}
const char* upb_EncodeStatus_String(upb_EncodeStatus status) {
switch (status) {
case kUpb_EncodeStatus_Ok:
return "Ok";
case kUpb_EncodeStatus_MissingRequired:
return "Missing required field";
case kUpb_EncodeStatus_MaxDepthExceeded:
return "Max depth exceeded";
case kUpb_EncodeStatus_OutOfMemory:
return "Arena alloc failed";
default:
return "Unknown encode status";
}
}
// Fast decoder: ~3x the speed of decode.c, but requires x86-64/ARM64.
// Also the table size grows by 2x.
//
// Could potentially be ported to other 64-bit archs that pass at least six
// arguments in registers and have 8 unused high bits in pointers.
//
// The overall design is to create specialized functions for every possible
// field type (eg. oneof boolean field with a 1 byte tag) and then dispatch
// to the specialized function as quickly as possible.
// Must be last.
#if UPB_FASTTABLE
// The standard set of arguments passed to each parsing function.
// Thanks to x86-64 calling conventions, these will stay in registers.
#define UPB_PARSE_PARAMS \
upb_Decoder *d, const char *ptr, upb_Message *msg, intptr_t table, \
uint64_t hasbits, uint64_t data
#define UPB_PARSE_ARGS d, ptr, msg, table, hasbits, data
#define RETURN_GENERIC(m) \
/* Uncomment either of these for debugging purposes. */ \
/* fprintf(stderr, m); */ \
/*__builtin_trap(); */ \
return _upb_FastDecoder_DecodeGeneric(d, ptr, msg, table, hasbits, 0);
typedef enum {
CARD_s = 0, /* Singular (optional, non-repeated) */
CARD_o = 1, /* Oneof */
CARD_r = 2, /* Repeated */
CARD_p = 3 /* Packed Repeated */
} upb_card;
UPB_NOINLINE
static const char* fastdecode_isdonefallback(UPB_PARSE_PARAMS) {
int overrun = data;
ptr = _upb_EpsCopyInputStream_IsDoneFallbackInline(
&d->input, ptr, overrun, _upb_Decoder_BufferFlipCallback);
data = _upb_FastDecoder_LoadTag(ptr);
UPB_MUSTTAIL return _upb_FastDecoder_TagDispatch(UPB_PARSE_ARGS);
}
UPB_FORCEINLINE
const char* fastdecode_dispatch(UPB_PARSE_PARAMS) {
int overrun;
switch (upb_EpsCopyInputStream_IsDoneStatus(&d->input, ptr, &overrun)) {
case kUpb_IsDoneStatus_Done:
((uint32_t*)msg)[2] |= hasbits; // Sync hasbits.
const upb_MiniTable* m = decode_totablep(table);
return UPB_UNLIKELY(m->UPB_PRIVATE(required_count))
? _upb_Decoder_CheckRequired(d, ptr, msg, m)
: ptr;
case kUpb_IsDoneStatus_NotDone:
break;
case kUpb_IsDoneStatus_NeedFallback:
data = overrun;
UPB_MUSTTAIL return fastdecode_isdonefallback(UPB_PARSE_ARGS);
}
// Read two bytes of tag data (for a one-byte tag, the high byte is junk).
data = _upb_FastDecoder_LoadTag(ptr);
UPB_MUSTTAIL return _upb_FastDecoder_TagDispatch(UPB_PARSE_ARGS);
}
UPB_FORCEINLINE
bool fastdecode_checktag(uint16_t data, int tagbytes) {
if (tagbytes == 1) {
return (data & 0xff) == 0;
} else {
return data == 0;
}
}
UPB_FORCEINLINE
const char* fastdecode_longsize(const char* ptr, int* size) {
int i;
UPB_ASSERT(*size & 0x80);
*size &= 0xff;
for (i = 0; i < 3; i++) {
ptr++;
size_t byte = (uint8_t)ptr[-1];
*size += (byte - 1) << (7 + 7 * i);
if (UPB_LIKELY((byte & 0x80) == 0)) return ptr;
}
ptr++;
size_t byte = (uint8_t)ptr[-1];
// len is limited by 2gb not 4gb, hence 8 and not 16 as normally expected
// for a 32 bit varint.
if (UPB_UNLIKELY(byte >= 8)) return NULL;
*size += (byte - 1) << 28;
return ptr;
}
UPB_FORCEINLINE
const char* fastdecode_delimited(
upb_Decoder* d, const char* ptr,
upb_EpsCopyInputStream_ParseDelimitedFunc* func, void* ctx) {
ptr++;
// Sign-extend so varint greater than one byte becomes negative, causing
// fast delimited parse to fail.
int len = (int8_t)ptr[-1];
if (!upb_EpsCopyInputStream_TryParseDelimitedFast(&d->input, &ptr, len, func,
ctx)) {
// Slow case: Sub-message is >=128 bytes and/or exceeds the current buffer.
// If it exceeds the buffer limit, limit/limit_ptr will change during
// sub-message parsing, so we need to preserve delta, not limit.
if (UPB_UNLIKELY(len & 0x80)) {
// Size varint >1 byte (length >= 128).
ptr = fastdecode_longsize(ptr, &len);
if (!ptr) {
// Corrupt wire format: size exceeded INT_MAX.
return NULL;
}
}
if (!upb_EpsCopyInputStream_CheckSize(&d->input, ptr, len)) {
// Corrupt wire format: invalid limit.
return NULL;
}
int delta = upb_EpsCopyInputStream_PushLimit(&d->input, ptr, len);
ptr = func(&d->input, ptr, ctx);
upb_EpsCopyInputStream_PopLimit(&d->input, ptr, delta);
}
return ptr;
}
/* singular, oneof, repeated field handling ***********************************/
typedef struct {
upb_Array* arr;
void* end;
} fastdecode_arr;
typedef enum {
FD_NEXT_ATLIMIT,
FD_NEXT_SAMEFIELD,
FD_NEXT_OTHERFIELD
} fastdecode_next;
typedef struct {
void* dst;
fastdecode_next next;
uint32_t tag;
} fastdecode_nextret;
UPB_FORCEINLINE
void* fastdecode_resizearr(upb_Decoder* d, void* dst, fastdecode_arr* farr,
int valbytes) {
if (UPB_UNLIKELY(dst == farr->end)) {
size_t old_capacity = farr->arr->UPB_PRIVATE(capacity);
size_t old_bytes = old_capacity * valbytes;
size_t new_capacity = old_capacity * 2;
size_t new_bytes = new_capacity * valbytes;
char* old_ptr = upb_Array_MutableDataPtr(farr->arr);
char* new_ptr = upb_Arena_Realloc(&d->arena, old_ptr, old_bytes, new_bytes);
uint8_t elem_size_lg2 = __builtin_ctz(valbytes);
UPB_PRIVATE(_upb_Array_SetTaggedPtr)(farr->arr, new_ptr, elem_size_lg2);
farr->arr->UPB_PRIVATE(capacity) = new_capacity;
dst = (void*)(new_ptr + (old_capacity * valbytes));
farr->end = (void*)(new_ptr + (new_capacity * valbytes));
}
return dst;
}
UPB_FORCEINLINE
bool fastdecode_tagmatch(uint32_t tag, uint64_t data, int tagbytes) {
if (tagbytes == 1) {
return (uint8_t)tag == (uint8_t)data;
} else {
return (uint16_t)tag == (uint16_t)data;
}
}
UPB_FORCEINLINE
void fastdecode_commitarr(void* dst, fastdecode_arr* farr, int valbytes) {
farr->arr->UPB_PRIVATE(size) =
(size_t)((char*)dst - (char*)upb_Array_MutableDataPtr(farr->arr)) /
valbytes;
}
UPB_FORCEINLINE
fastdecode_nextret fastdecode_nextrepeated(upb_Decoder* d, void* dst,
const char** ptr,
fastdecode_arr* farr, uint64_t data,
int tagbytes, int valbytes) {
fastdecode_nextret ret;
dst = (char*)dst + valbytes;
if (UPB_LIKELY(!_upb_Decoder_IsDone(d, ptr))) {
ret.tag = _upb_FastDecoder_LoadTag(*ptr);
if (fastdecode_tagmatch(ret.tag, data, tagbytes)) {
ret.next = FD_NEXT_SAMEFIELD;
} else {
fastdecode_commitarr(dst, farr, valbytes);
ret.next = FD_NEXT_OTHERFIELD;
}
} else {
fastdecode_commitarr(dst, farr, valbytes);
ret.next = FD_NEXT_ATLIMIT;
}
ret.dst = dst;
return ret;
}
UPB_FORCEINLINE
void* fastdecode_fieldmem(upb_Message* msg, uint64_t data) {
size_t ofs = data >> 48;
return (char*)msg + ofs;
}
UPB_FORCEINLINE
void* fastdecode_getfield(upb_Decoder* d, const char* ptr, upb_Message* msg,
uint64_t* data, uint64_t* hasbits,
fastdecode_arr* farr, int valbytes, upb_card card) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
switch (card) {
case CARD_s: {
uint8_t hasbit_index = *data >> 24;
// Set hasbit and return pointer to scalar field.
*hasbits |= 1ull << hasbit_index;
return fastdecode_fieldmem(msg, *data);
}
case CARD_o: {
uint16_t case_ofs = *data >> 32;
uint32_t* oneof_case = UPB_PTR_AT(msg, case_ofs, uint32_t);
uint8_t field_number = *data >> 24;
*oneof_case = field_number;
return fastdecode_fieldmem(msg, *data);
}
case CARD_r: {
// Get pointer to upb_Array and allocate/expand if necessary.
uint8_t elem_size_lg2 = __builtin_ctz(valbytes);
upb_Array** arr_p = fastdecode_fieldmem(msg, *data);
char* begin;
((uint32_t*)msg)[2] |= *hasbits;
*hasbits = 0;
if (UPB_LIKELY(!*arr_p)) {
farr->arr = UPB_PRIVATE(_upb_Array_New)(&d->arena, 8, elem_size_lg2);
*arr_p = farr->arr;
} else {
farr->arr = *arr_p;
}
begin = upb_Array_MutableDataPtr(farr->arr);
farr->end = begin + (farr->arr->UPB_PRIVATE(capacity) * valbytes);
*data = _upb_FastDecoder_LoadTag(ptr);
return begin + (farr->arr->UPB_PRIVATE(size) * valbytes);
}
default:
UPB_UNREACHABLE();
}
}
UPB_FORCEINLINE
bool fastdecode_flippacked(uint64_t* data, int tagbytes) {
*data ^= (0x2 ^ 0x0); // Patch data to match packed wiretype.
return fastdecode_checktag(*data, tagbytes);
}
#define FASTDECODE_CHECKPACKED(tagbytes, card, func) \
if (UPB_UNLIKELY(!fastdecode_checktag(data, tagbytes))) { \
if (card == CARD_r && fastdecode_flippacked(&data, tagbytes)) { \
UPB_MUSTTAIL return func(UPB_PARSE_ARGS); \
} \
RETURN_GENERIC("packed check tag mismatch\n"); \
}
/* varint fields **************************************************************/
UPB_FORCEINLINE
uint64_t fastdecode_munge(uint64_t val, int valbytes, bool zigzag) {
if (valbytes == 1) {
return val != 0;
} else if (zigzag) {
if (valbytes == 4) {
uint32_t n = val;
return (n >> 1) ^ -(int32_t)(n & 1);
} else if (valbytes == 8) {
return (val >> 1) ^ -(int64_t)(val & 1);
}
UPB_UNREACHABLE();
}
return val;
}
UPB_FORCEINLINE
const char* fastdecode_varint64(const char* ptr, uint64_t* val) {
ptr++;
*val = (uint8_t)ptr[-1];
if (UPB_UNLIKELY(*val & 0x80)) {
int i;
for (i = 0; i < 8; i++) {
ptr++;
uint64_t byte = (uint8_t)ptr[-1];
*val += (byte - 1) << (7 + 7 * i);
if (UPB_LIKELY((byte & 0x80) == 0)) goto done;
}
ptr++;
uint64_t byte = (uint8_t)ptr[-1];
if (byte > 1) {
return NULL;
}
*val += (byte - 1) << 63;
}
done:
UPB_ASSUME(ptr != NULL);
return ptr;
}
#define FASTDECODE_UNPACKEDVARINT(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, card, zigzag, packed) \
uint64_t val; \
void* dst; \
fastdecode_arr farr; \
\
FASTDECODE_CHECKPACKED(tagbytes, card, packed); \
\
dst = fastdecode_getfield(d, ptr, msg, &data, &hasbits, &farr, valbytes, \
card); \
if (card == CARD_r) { \
if (UPB_UNLIKELY(!dst)) { \
RETURN_GENERIC("need array resize\n"); \
} \
} \
\
again: \
if (card == CARD_r) { \
dst = fastdecode_resizearr(d, dst, &farr, valbytes); \
} \
\
ptr += tagbytes; \
ptr = fastdecode_varint64(ptr, &val); \
if (ptr == NULL) _upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed); \
val = fastdecode_munge(val, valbytes, zigzag); \
memcpy(dst, &val, valbytes); \
\
if (card == CARD_r) { \
fastdecode_nextret ret = fastdecode_nextrepeated( \
d, dst, &ptr, &farr, data, tagbytes, valbytes); \
switch (ret.next) { \
case FD_NEXT_SAMEFIELD: \
dst = ret.dst; \
goto again; \
case FD_NEXT_OTHERFIELD: \
data = ret.tag; \
UPB_MUSTTAIL return _upb_FastDecoder_TagDispatch(UPB_PARSE_ARGS); \
case FD_NEXT_ATLIMIT: \
return ptr; \
} \
} \
\
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS);
typedef struct {
uint8_t valbytes;
bool zigzag;
void* dst;
fastdecode_arr farr;
} fastdecode_varintdata;
UPB_FORCEINLINE
const char* fastdecode_topackedvarint(upb_EpsCopyInputStream* e,
const char* ptr, void* ctx) {
upb_Decoder* d = (upb_Decoder*)e;
fastdecode_varintdata* data = ctx;
void* dst = data->dst;
uint64_t val;
while (!_upb_Decoder_IsDone(d, &ptr)) {
dst = fastdecode_resizearr(d, dst, &data->farr, data->valbytes);
ptr = fastdecode_varint64(ptr, &val);
if (ptr == NULL) return NULL;
val = fastdecode_munge(val, data->valbytes, data->zigzag);
memcpy(dst, &val, data->valbytes);
dst = (char*)dst + data->valbytes;
}
fastdecode_commitarr(dst, &data->farr, data->valbytes);
return ptr;
}
#define FASTDECODE_PACKEDVARINT(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, zigzag, unpacked) \
fastdecode_varintdata ctx = {valbytes, zigzag}; \
\
FASTDECODE_CHECKPACKED(tagbytes, CARD_r, unpacked); \
\
ctx.dst = fastdecode_getfield(d, ptr, msg, &data, &hasbits, &ctx.farr, \
valbytes, CARD_r); \
if (UPB_UNLIKELY(!ctx.dst)) { \
RETURN_GENERIC("need array resize\n"); \
} \
\
ptr += tagbytes; \
ptr = fastdecode_delimited(d, ptr, &fastdecode_topackedvarint, &ctx); \
\
if (UPB_UNLIKELY(ptr == NULL)) { \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed); \
} \
\
UPB_MUSTTAIL return fastdecode_dispatch(d, ptr, msg, table, hasbits, 0);
#define FASTDECODE_VARINT(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, card, zigzag, unpacked, packed) \
if (card == CARD_p) { \
FASTDECODE_PACKEDVARINT(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, zigzag, unpacked); \
} else { \
FASTDECODE_UNPACKEDVARINT(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, card, zigzag, packed); \
}
#define z_ZZ true
#define b_ZZ false
#define v_ZZ false
/* Generate all combinations:
* {s,o,r,p} x {b1,v4,z4,v8,z8} x {1bt,2bt} */
#define F(card, type, valbytes, tagbytes) \
UPB_NOINLINE \
const char* upb_p##card##type##valbytes##_##tagbytes##bt(UPB_PARSE_PARAMS) { \
FASTDECODE_VARINT(d, ptr, msg, table, hasbits, data, tagbytes, valbytes, \
CARD_##card, type##_ZZ, \
upb_pr##type##valbytes##_##tagbytes##bt, \
upb_pp##type##valbytes##_##tagbytes##bt); \
}
#define TYPES(card, tagbytes) \
F(card, b, 1, tagbytes) \
F(card, v, 4, tagbytes) \
F(card, v, 8, tagbytes) \
F(card, z, 4, tagbytes) \
F(card, z, 8, tagbytes)
#define TAGBYTES(card) \
TYPES(card, 1) \
TYPES(card, 2)
TAGBYTES(s)
TAGBYTES(o)
TAGBYTES(r)
TAGBYTES(p)
#undef z_ZZ
#undef b_ZZ
#undef v_ZZ
#undef o_ONEOF
#undef s_ONEOF
#undef r_ONEOF
#undef F
#undef TYPES
#undef TAGBYTES
#undef FASTDECODE_UNPACKEDVARINT
#undef FASTDECODE_PACKEDVARINT
#undef FASTDECODE_VARINT
/* fixed fields ***************************************************************/
#define FASTDECODE_UNPACKEDFIXED(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, card, packed) \
void* dst; \
fastdecode_arr farr; \
\
FASTDECODE_CHECKPACKED(tagbytes, card, packed) \
\
dst = fastdecode_getfield(d, ptr, msg, &data, &hasbits, &farr, valbytes, \
card); \
if (card == CARD_r) { \
if (UPB_UNLIKELY(!dst)) { \
RETURN_GENERIC("couldn't allocate array in arena\n"); \
} \
} \
\
again: \
if (card == CARD_r) { \
dst = fastdecode_resizearr(d, dst, &farr, valbytes); \
} \
\
ptr += tagbytes; \
memcpy(dst, ptr, valbytes); \
ptr += valbytes; \
\
if (card == CARD_r) { \
fastdecode_nextret ret = fastdecode_nextrepeated( \
d, dst, &ptr, &farr, data, tagbytes, valbytes); \
switch (ret.next) { \
case FD_NEXT_SAMEFIELD: \
dst = ret.dst; \
goto again; \
case FD_NEXT_OTHERFIELD: \
data = ret.tag; \
UPB_MUSTTAIL return _upb_FastDecoder_TagDispatch(UPB_PARSE_ARGS); \
case FD_NEXT_ATLIMIT: \
return ptr; \
} \
} \
\
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS);
#define FASTDECODE_PACKEDFIXED(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, unpacked) \
FASTDECODE_CHECKPACKED(tagbytes, CARD_r, unpacked) \
\
ptr += tagbytes; \
int size = (uint8_t)ptr[0]; \
ptr++; \
if (size & 0x80) { \
ptr = fastdecode_longsize(ptr, &size); \
} \
\
if (UPB_UNLIKELY(!upb_EpsCopyInputStream_CheckDataSizeAvailable( \
&d->input, ptr, size) || \
(size % valbytes) != 0)) { \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed); \
} \
\
upb_Array** arr_p = fastdecode_fieldmem(msg, data); \
upb_Array* arr = *arr_p; \
uint8_t elem_size_lg2 = __builtin_ctz(valbytes); \
int elems = size / valbytes; \
\
if (UPB_LIKELY(!arr)) { \
*arr_p = arr = \
UPB_PRIVATE(_upb_Array_New)(&d->arena, elems, elem_size_lg2); \
if (!arr) { \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed); \
} \
} else { \
UPB_PRIVATE(_upb_Array_ResizeUninitialized)(arr, elems, &d->arena); \
} \
\
char* dst = upb_Array_MutableDataPtr(arr); \
memcpy(dst, ptr, size); \
arr->UPB_PRIVATE(size) = elems; \
\
ptr += size; \
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS);
#define FASTDECODE_FIXED(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, card, unpacked, packed) \
if (card == CARD_p) { \
FASTDECODE_PACKEDFIXED(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, unpacked); \
} else { \
FASTDECODE_UNPACKEDFIXED(d, ptr, msg, table, hasbits, data, tagbytes, \
valbytes, card, packed); \
}
/* Generate all combinations:
* {s,o,r,p} x {f4,f8} x {1bt,2bt} */
#define F(card, valbytes, tagbytes) \
UPB_NOINLINE \
const char* upb_p##card##f##valbytes##_##tagbytes##bt(UPB_PARSE_PARAMS) { \
FASTDECODE_FIXED(d, ptr, msg, table, hasbits, data, tagbytes, valbytes, \
CARD_##card, upb_ppf##valbytes##_##tagbytes##bt, \
upb_prf##valbytes##_##tagbytes##bt); \
}
#define TYPES(card, tagbytes) \
F(card, 4, tagbytes) \
F(card, 8, tagbytes)
#define TAGBYTES(card) \
TYPES(card, 1) \
TYPES(card, 2)
TAGBYTES(s)
TAGBYTES(o)
TAGBYTES(r)
TAGBYTES(p)
#undef F
#undef TYPES
#undef TAGBYTES
#undef FASTDECODE_UNPACKEDFIXED
#undef FASTDECODE_PACKEDFIXED
/* string fields **************************************************************/
typedef const char* fastdecode_copystr_func(struct upb_Decoder* d,
const char* ptr, upb_Message* msg,
const upb_MiniTable* table,
uint64_t hasbits,
upb_StringView* dst);
UPB_NOINLINE
static const char* fastdecode_verifyutf8(upb_Decoder* d, const char* ptr,
upb_Message* msg, intptr_t table,
uint64_t hasbits, uint64_t data) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_StringView* dst = (upb_StringView*)data;
if (!_upb_Decoder_VerifyUtf8Inline(dst->data, dst->size)) {
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_BadUtf8);
}
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS);
}
#define FASTDECODE_LONGSTRING(d, ptr, msg, table, hasbits, dst, validate_utf8) \
int size = (uint8_t)ptr[0]; /* Could plumb through hasbits. */ \
ptr++; \
if (size & 0x80) { \
ptr = fastdecode_longsize(ptr, &size); \
} \
\
if (UPB_UNLIKELY(!upb_EpsCopyInputStream_CheckSize(&d->input, ptr, size))) { \
dst->size = 0; \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed); \
} \
\
const char* s_ptr = ptr; \
ptr = upb_EpsCopyInputStream_ReadString(&d->input, &s_ptr, size, &d->arena); \
if (!ptr) _upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_OutOfMemory); \
dst->data = s_ptr; \
dst->size = size; \
\
if (validate_utf8) { \
data = (uint64_t)dst; \
UPB_MUSTTAIL return fastdecode_verifyutf8(UPB_PARSE_ARGS); \
} else { \
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS); \
}
UPB_NOINLINE
static const char* fastdecode_longstring_utf8(struct upb_Decoder* d,
const char* ptr, upb_Message* msg,
intptr_t table, uint64_t hasbits,
uint64_t data) {
upb_StringView* dst = (upb_StringView*)data;
FASTDECODE_LONGSTRING(d, ptr, msg, table, hasbits, dst, true);
}
UPB_NOINLINE
static const char* fastdecode_longstring_noutf8(
struct upb_Decoder* d, const char* ptr, upb_Message* msg, intptr_t table,
uint64_t hasbits, uint64_t data) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_StringView* dst = (upb_StringView*)data;
FASTDECODE_LONGSTRING(d, ptr, msg, table, hasbits, dst, false);
}
UPB_FORCEINLINE
void fastdecode_docopy(upb_Decoder* d, const char* ptr, uint32_t size, int copy,
char* data, size_t data_offset, upb_StringView* dst) {
d->arena.UPB_PRIVATE(ptr) += copy;
dst->data = data + data_offset;
UPB_UNPOISON_MEMORY_REGION(data, copy);
memcpy(data, ptr, copy);
UPB_POISON_MEMORY_REGION(data + data_offset + size,
copy - data_offset - size);
}
#define FASTDECODE_COPYSTRING(d, ptr, msg, table, hasbits, data, tagbytes, \
card, validate_utf8) \
upb_StringView* dst; \
fastdecode_arr farr; \
int64_t size; \
size_t arena_has; \
size_t common_has; \
char* buf; \
\
UPB_ASSERT(!upb_EpsCopyInputStream_AliasingAvailable(&d->input, ptr, 0)); \
UPB_ASSERT(fastdecode_checktag(data, tagbytes)); \
\
dst = fastdecode_getfield(d, ptr, msg, &data, &hasbits, &farr, \
sizeof(upb_StringView), card); \
\
again: \
if (card == CARD_r) { \
dst = fastdecode_resizearr(d, dst, &farr, sizeof(upb_StringView)); \
} \
\
size = (uint8_t)ptr[tagbytes]; \
ptr += tagbytes + 1; \
dst->size = size; \
\
buf = d->arena.UPB_PRIVATE(ptr); \
arena_has = UPB_PRIVATE(_upb_ArenaHas)(&d->arena); \
common_has = UPB_MIN(arena_has, \
upb_EpsCopyInputStream_BytesAvailable(&d->input, ptr)); \
\
if (UPB_LIKELY(size <= 15 - tagbytes)) { \
if (arena_has < 16) goto longstr; \
fastdecode_docopy(d, ptr - tagbytes - 1, size, 16, buf, tagbytes + 1, \
dst); \
} else if (UPB_LIKELY(size <= 32)) { \
if (UPB_UNLIKELY(common_has < 32)) goto longstr; \
fastdecode_docopy(d, ptr, size, 32, buf, 0, dst); \
} else if (UPB_LIKELY(size <= 64)) { \
if (UPB_UNLIKELY(common_has < 64)) goto longstr; \
fastdecode_docopy(d, ptr, size, 64, buf, 0, dst); \
} else if (UPB_LIKELY(size < 128)) { \
if (UPB_UNLIKELY(common_has < 128)) goto longstr; \
fastdecode_docopy(d, ptr, size, 128, buf, 0, dst); \
} else { \
goto longstr; \
} \
\
ptr += size; \
\
if (card == CARD_r) { \
if (validate_utf8 && \
!_upb_Decoder_VerifyUtf8Inline(dst->data, dst->size)) { \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_BadUtf8); \
} \
fastdecode_nextret ret = fastdecode_nextrepeated( \
d, dst, &ptr, &farr, data, tagbytes, sizeof(upb_StringView)); \
switch (ret.next) { \
case FD_NEXT_SAMEFIELD: \
dst = ret.dst; \
goto again; \
case FD_NEXT_OTHERFIELD: \
data = ret.tag; \
UPB_MUSTTAIL return _upb_FastDecoder_TagDispatch(UPB_PARSE_ARGS); \
case FD_NEXT_ATLIMIT: \
return ptr; \
} \
} \
\
if (card != CARD_r && validate_utf8) { \
data = (uint64_t)dst; \
UPB_MUSTTAIL return fastdecode_verifyutf8(UPB_PARSE_ARGS); \
} \
\
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS); \
\
longstr: \
if (card == CARD_r) { \
fastdecode_commitarr(dst + 1, &farr, sizeof(upb_StringView)); \
} \
ptr--; \
if (validate_utf8) { \
UPB_MUSTTAIL return fastdecode_longstring_utf8(d, ptr, msg, table, \
hasbits, (uint64_t)dst); \
} else { \
UPB_MUSTTAIL return fastdecode_longstring_noutf8(d, ptr, msg, table, \
hasbits, (uint64_t)dst); \
}
#define FASTDECODE_STRING(d, ptr, msg, table, hasbits, data, tagbytes, card, \
copyfunc, validate_utf8) \
upb_StringView* dst; \
fastdecode_arr farr; \
int64_t size; \
\
if (UPB_UNLIKELY(!fastdecode_checktag(data, tagbytes))) { \
RETURN_GENERIC("string field tag mismatch\n"); \
} \
\
if (UPB_UNLIKELY( \
!upb_EpsCopyInputStream_AliasingAvailable(&d->input, ptr, 0))) { \
UPB_MUSTTAIL return copyfunc(UPB_PARSE_ARGS); \
} \
\
dst = fastdecode_getfield(d, ptr, msg, &data, &hasbits, &farr, \
sizeof(upb_StringView), card); \
\
again: \
if (card == CARD_r) { \
dst = fastdecode_resizearr(d, dst, &farr, sizeof(upb_StringView)); \
} \
\
size = (int8_t)ptr[tagbytes]; \
ptr += tagbytes + 1; \
\
if (UPB_UNLIKELY( \
!upb_EpsCopyInputStream_AliasingAvailable(&d->input, ptr, size))) { \
ptr--; \
if (validate_utf8) { \
return fastdecode_longstring_utf8(d, ptr, msg, table, hasbits, \
(uint64_t)dst); \
} else { \
return fastdecode_longstring_noutf8(d, ptr, msg, table, hasbits, \
(uint64_t)dst); \
} \
} \
\
dst->data = ptr; \
dst->size = size; \
ptr = upb_EpsCopyInputStream_ReadStringAliased(&d->input, &dst->data, \
dst->size); \
\
if (card == CARD_r) { \
if (validate_utf8 && \
!_upb_Decoder_VerifyUtf8Inline(dst->data, dst->size)) { \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_BadUtf8); \
} \
fastdecode_nextret ret = fastdecode_nextrepeated( \
d, dst, &ptr, &farr, data, tagbytes, sizeof(upb_StringView)); \
switch (ret.next) { \
case FD_NEXT_SAMEFIELD: \
dst = ret.dst; \
goto again; \
case FD_NEXT_OTHERFIELD: \
data = ret.tag; \
UPB_MUSTTAIL return _upb_FastDecoder_TagDispatch(UPB_PARSE_ARGS); \
case FD_NEXT_ATLIMIT: \
return ptr; \
} \
} \
\
if (card != CARD_r && validate_utf8) { \
data = (uint64_t)dst; \
UPB_MUSTTAIL return fastdecode_verifyutf8(UPB_PARSE_ARGS); \
} \
\
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS);
/* Generate all combinations:
* {p,c} x {s,o,r} x {s, b} x {1bt,2bt} */
#define s_VALIDATE true
#define b_VALIDATE false
#define F(card, tagbytes, type) \
UPB_NOINLINE \
const char* upb_c##card##type##_##tagbytes##bt(UPB_PARSE_PARAMS) { \
FASTDECODE_COPYSTRING(d, ptr, msg, table, hasbits, data, tagbytes, \
CARD_##card, type##_VALIDATE); \
} \
const char* upb_p##card##type##_##tagbytes##bt(UPB_PARSE_PARAMS) { \
FASTDECODE_STRING(d, ptr, msg, table, hasbits, data, tagbytes, \
CARD_##card, upb_c##card##type##_##tagbytes##bt, \
type##_VALIDATE); \
}
#define UTF8(card, tagbytes) \
F(card, tagbytes, s) \
F(card, tagbytes, b)
#define TAGBYTES(card) \
UTF8(card, 1) \
UTF8(card, 2)
TAGBYTES(s)
TAGBYTES(o)
TAGBYTES(r)
#undef s_VALIDATE
#undef b_VALIDATE
#undef F
#undef TAGBYTES
#undef FASTDECODE_LONGSTRING
#undef FASTDECODE_COPYSTRING
#undef FASTDECODE_STRING
/* message fields *************************************************************/
UPB_INLINE
upb_Message* decode_newmsg_ceil(upb_Decoder* d, const upb_MiniTable* m,
int msg_ceil_bytes) {
size_t size = m->UPB_PRIVATE(size);
char* msg_data;
if (UPB_LIKELY(msg_ceil_bytes > 0 &&
UPB_PRIVATE(_upb_ArenaHas)(&d->arena) >= msg_ceil_bytes)) {
UPB_ASSERT(size <= (size_t)msg_ceil_bytes);
msg_data = d->arena.UPB_PRIVATE(ptr);
d->arena.UPB_PRIVATE(ptr) += size;
UPB_UNPOISON_MEMORY_REGION(msg_data, msg_ceil_bytes);
memset(msg_data, 0, msg_ceil_bytes);
UPB_POISON_MEMORY_REGION(msg_data + size, msg_ceil_bytes - size);
} else {
msg_data = (char*)upb_Arena_Malloc(&d->arena, size);
memset(msg_data, 0, size);
}
return (upb_Message*)msg_data;
}
typedef struct {
intptr_t table;
upb_Message* msg;
} fastdecode_submsgdata;
UPB_FORCEINLINE
const char* fastdecode_tosubmsg(upb_EpsCopyInputStream* e, const char* ptr,
void* ctx) {
upb_Decoder* d = (upb_Decoder*)e;
fastdecode_submsgdata* submsg = ctx;
ptr = fastdecode_dispatch(d, ptr, submsg->msg, submsg->table, 0, 0);
UPB_ASSUME(ptr != NULL);
return ptr;
}
#define FASTDECODE_SUBMSG(d, ptr, msg, table, hasbits, data, tagbytes, \
msg_ceil_bytes, card) \
\
if (UPB_UNLIKELY(!fastdecode_checktag(data, tagbytes))) { \
RETURN_GENERIC("submessage field tag mismatch\n"); \
} \
\
if (--d->depth == 0) { \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_MaxDepthExceeded); \
} \
\
upb_Message** dst; \
uint32_t submsg_idx = (data >> 16) & 0xff; \
const upb_MiniTable* tablep = decode_totablep(table); \
const upb_MiniTable* subtablep = upb_MiniTableSub_Message( \
*UPB_PRIVATE(_upb_MiniTable_GetSubByIndex)(tablep, submsg_idx)); \
fastdecode_submsgdata submsg = {decode_totable(subtablep)}; \
fastdecode_arr farr; \
\
if (subtablep->UPB_PRIVATE(table_mask) == (uint8_t)-1) { \
d->depth++; \
RETURN_GENERIC("submessage doesn't have fast tables."); \
} \
\
dst = fastdecode_getfield(d, ptr, msg, &data, &hasbits, &farr, \
sizeof(upb_Message*), card); \
\
if (card == CARD_s) { \
((uint32_t*)msg)[2] |= hasbits; \
hasbits = 0; \
} \
\
again: \
if (card == CARD_r) { \
dst = fastdecode_resizearr(d, dst, &farr, sizeof(upb_Message*)); \
} \
\
submsg.msg = *dst; \
\
if (card == CARD_r || UPB_LIKELY(!submsg.msg)) { \
*dst = submsg.msg = decode_newmsg_ceil(d, subtablep, msg_ceil_bytes); \
} \
\
ptr += tagbytes; \
ptr = fastdecode_delimited(d, ptr, fastdecode_tosubmsg, &submsg); \
\
if (UPB_UNLIKELY(ptr == NULL || d->end_group != DECODE_NOGROUP)) { \
_upb_FastDecoder_ErrorJmp(d, kUpb_DecodeStatus_Malformed); \
} \
\
if (card == CARD_r) { \
fastdecode_nextret ret = fastdecode_nextrepeated( \
d, dst, &ptr, &farr, data, tagbytes, sizeof(upb_Message*)); \
switch (ret.next) { \
case FD_NEXT_SAMEFIELD: \
dst = ret.dst; \
goto again; \
case FD_NEXT_OTHERFIELD: \
d->depth++; \
data = ret.tag; \
UPB_MUSTTAIL return _upb_FastDecoder_TagDispatch(UPB_PARSE_ARGS); \
case FD_NEXT_ATLIMIT: \
d->depth++; \
return ptr; \
} \
} \
\
d->depth++; \
UPB_MUSTTAIL return fastdecode_dispatch(UPB_PARSE_ARGS);
#define F(card, tagbytes, size_ceil, ceil_arg) \
const char* upb_p##card##m_##tagbytes##bt_max##size_ceil##b( \
UPB_PARSE_PARAMS) { \
FASTDECODE_SUBMSG(d, ptr, msg, table, hasbits, data, tagbytes, ceil_arg, \
CARD_##card); \
}
#define SIZES(card, tagbytes) \
F(card, tagbytes, 64, 64) \
F(card, tagbytes, 128, 128) \
F(card, tagbytes, 192, 192) \
F(card, tagbytes, 256, 256) \
F(card, tagbytes, max, -1)
#define TAGBYTES(card) \
SIZES(card, 1) \
SIZES(card, 2)
TAGBYTES(s)
TAGBYTES(o)
TAGBYTES(r)
#undef TAGBYTES
#undef SIZES
#undef F
#undef FASTDECODE_SUBMSG
#endif /* UPB_FASTTABLE */
#include <stddef.h>
#include <stdint.h>
// Must be last.
UPB_NOINLINE UPB_PRIVATE(_upb_WireReader_LongVarint)
UPB_PRIVATE(_upb_WireReader_ReadLongVarint)(const char* ptr, uint64_t val) {
UPB_PRIVATE(_upb_WireReader_LongVarint) ret = {NULL, 0};
uint64_t byte;
for (int i = 1; i < 10; i++) {
byte = (uint8_t)ptr[i];
val += (byte - 1) << (i * 7);
if (!(byte & 0x80)) {
ret.ptr = ptr + i + 1;
ret.val = val;
return ret;
}
}
return ret;
}
const char* UPB_PRIVATE(_upb_WireReader_SkipGroup)(
const char* ptr, uint32_t tag, int depth_limit,
upb_EpsCopyInputStream* stream) {
if (--depth_limit == 0) return NULL;
uint32_t end_group_tag = (tag & ~7ULL) | kUpb_WireType_EndGroup;
while (!upb_EpsCopyInputStream_IsDone(stream, &ptr)) {
uint32_t tag;
ptr = upb_WireReader_ReadTag(ptr, &tag);
if (!ptr) return NULL;
if (tag == end_group_tag) return ptr;
ptr = _upb_WireReader_SkipValue(ptr, tag, depth_limit, stream);
if (!ptr) return NULL;
}
return ptr;
}
/* This file was generated by upb_generator from the input file:
*
* google/protobuf/descriptor.proto
*
* Do not edit -- your changes will be discarded when the file is
* regenerated.
* NO CHECKED-IN PROTOBUF GENCODE */
#include <stddef.h>
// Must be last.
extern const struct upb_MiniTable UPB_PRIVATE(_kUpb_MiniTable_StaticallyTreeShaken);
static const upb_MiniTableSubInternal google_protobuf_FileDescriptorSet__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FileDescriptorProto_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_FileDescriptorSet__fields[1] = {
{1, 8, 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FileDescriptorSet_msg_init = {
&google_protobuf_FileDescriptorSet__submsgs[0],
&google_protobuf_FileDescriptorSet__fields[0],
16, 1, kUpb_ExtMode_Extendable, 1, UPB_FASTTABLE_MASK(8), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FileDescriptorSet",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x000800003f00000a, &upb_prm_1bt_max192b},
})
};
const upb_MiniTable* google__protobuf__FileDescriptorSet_msg_init_ptr = &google__protobuf__FileDescriptorSet_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FileDescriptorProto__submsgs[7] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__DescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__EnumDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__ServiceDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FieldDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FileOptions_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__SourceCodeInfo_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
};
static const upb_MiniTableField google_protobuf_FileDescriptorProto__fields[13] = {
{1, UPB_SIZE(52, 16), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(60, 32), 65, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(12, 48), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Array | (int)kUpb_LabelFlags_IsAlternate | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(16, 56), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(20, 64), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{6, UPB_SIZE(24, 72), 0, 2, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{7, UPB_SIZE(28, 80), 0, 3, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{8, UPB_SIZE(32, 88), 66, 4, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{9, UPB_SIZE(36, 96), 67, 5, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{10, UPB_SIZE(40, 104), 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{11, UPB_SIZE(44, 112), 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{12, UPB_SIZE(68, 120), 68, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{14, UPB_SIZE(48, 12), 69, 6, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FileDescriptorProto_msg_init = {
&google_protobuf_FileDescriptorProto__submsgs[0],
&google_protobuf_FileDescriptorProto__fields[0],
UPB_SIZE(80, 136), 13, kUpb_ExtMode_NonExtendable, 12, UPB_FASTTABLE_MASK(120), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FileDescriptorProto",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x003000003f00001a, &upb_prs_1bt},
{0x003800003f000022, &upb_prm_1bt_max128b},
{0x004000003f01002a, &upb_prm_1bt_max128b},
{0x004800003f020032, &upb_prm_1bt_max64b},
{0x005000003f03003a, &upb_prm_1bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x006800003f000050, &upb_prv4_1bt},
{0x007000003f000058, &upb_prv4_1bt},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__FileDescriptorProto_msg_init_ptr = &google__protobuf__FileDescriptorProto_msg_init;
static const upb_MiniTableSubInternal google_protobuf_DescriptorProto__submsgs[8] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FieldDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__DescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__EnumDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__DescriptorProto__ExtensionRange_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FieldDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__MessageOptions_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__OneofDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__DescriptorProto__ReservedRange_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_DescriptorProto__fields[10] = {
{1, UPB_SIZE(48, 16), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(12, 32), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 40), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(20, 48), 0, 2, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(24, 56), 0, 3, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{6, UPB_SIZE(28, 64), 0, 4, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{7, UPB_SIZE(32, 72), 65, 5, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{8, UPB_SIZE(36, 80), 0, 6, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{9, UPB_SIZE(40, 88), 0, 7, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{10, UPB_SIZE(44, 96), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Array | (int)kUpb_LabelFlags_IsAlternate | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__DescriptorProto_msg_init = {
&google_protobuf_DescriptorProto__submsgs[0],
&google_protobuf_DescriptorProto__fields[0],
UPB_SIZE(56, 104), 10, kUpb_ExtMode_NonExtendable, 10, UPB_FASTTABLE_MASK(120), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.DescriptorProto",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x002000003f000012, &upb_prm_1bt_max128b},
{0x002800003f01001a, &upb_prm_1bt_max128b},
{0x003000003f020022, &upb_prm_1bt_max128b},
{0x003800003f03002a, &upb_prm_1bt_max64b},
{0x004000003f040032, &upb_prm_1bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x005000003f060042, &upb_prm_1bt_max64b},
{0x005800003f07004a, &upb_prm_1bt_max64b},
{0x006000003f000052, &upb_prs_1bt},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__DescriptorProto_msg_init_ptr = &google__protobuf__DescriptorProto_msg_init;
static const upb_MiniTableSubInternal google_protobuf_DescriptorProto_ExtensionRange__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__ExtensionRangeOptions_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_DescriptorProto_ExtensionRange__fields[3] = {
{1, 12, 64, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{2, 16, 65, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(20, 24), 66, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__DescriptorProto__ExtensionRange_msg_init = {
&google_protobuf_DescriptorProto_ExtensionRange__submsgs[0],
&google_protobuf_DescriptorProto_ExtensionRange__fields[0],
UPB_SIZE(24, 32), 3, kUpb_ExtMode_NonExtendable, 3, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.DescriptorProto.ExtensionRange",
#endif
};
const upb_MiniTable* google__protobuf__DescriptorProto__ExtensionRange_msg_init_ptr = &google__protobuf__DescriptorProto__ExtensionRange_msg_init;
static const upb_MiniTableField google_protobuf_DescriptorProto_ReservedRange__fields[2] = {
{1, 12, 64, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{2, 16, 65, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__DescriptorProto__ReservedRange_msg_init = {
NULL,
&google_protobuf_DescriptorProto_ReservedRange__fields[0],
24, 2, kUpb_ExtMode_NonExtendable, 2, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.DescriptorProto.ReservedRange",
#endif
};
const upb_MiniTable* google__protobuf__DescriptorProto__ReservedRange_msg_init_ptr = &google__protobuf__DescriptorProto__ReservedRange_msg_init;
static const upb_MiniTableSubInternal google_protobuf_ExtensionRangeOptions__submsgs[4] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__ExtensionRangeOptions__Declaration_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__ExtensionRangeOptions__VerificationState_enum_init},
};
static const upb_MiniTableField google_protobuf_ExtensionRangeOptions__fields[4] = {
{2, UPB_SIZE(12, 16), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 12), 64, 3, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{50, UPB_SIZE(20, 24), 65, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(24, 32), 0, 2, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__ExtensionRangeOptions_msg_init = {
&google_protobuf_ExtensionRangeOptions__submsgs[0],
&google_protobuf_ExtensionRangeOptions__fields[0],
UPB_SIZE(32, 40), 4, kUpb_ExtMode_Extendable, 0, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.ExtensionRangeOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001000003f000012, &upb_prm_1bt_max64b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x002000003f023eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__ExtensionRangeOptions_msg_init_ptr = &google__protobuf__ExtensionRangeOptions_msg_init;
static const upb_MiniTableField google_protobuf_ExtensionRangeOptions_Declaration__fields[5] = {
{1, 12, 64, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(20, 24), 65, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(28, 40), 66, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{5, 16, 67, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{6, 17, 68, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__ExtensionRangeOptions__Declaration_msg_init = {
NULL,
&google_protobuf_ExtensionRangeOptions_Declaration__fields[0],
UPB_SIZE(40, 56), 5, kUpb_ExtMode_NonExtendable, 3, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.ExtensionRangeOptions.Declaration",
#endif
};
const upb_MiniTable* google__protobuf__ExtensionRangeOptions__Declaration_msg_init_ptr = &google__protobuf__ExtensionRangeOptions__Declaration_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FieldDescriptorProto__submsgs[3] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FieldOptions_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__FieldDescriptorProto__Label_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FieldDescriptorProto__Type_enum_init},
};
static const upb_MiniTableField google_protobuf_FieldDescriptorProto__fields[11] = {
{1, UPB_SIZE(36, 32), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(44, 48), 65, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{3, 12, 66, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{4, 16, 67, 1, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{5, 20, 68, 2, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{6, UPB_SIZE(52, 64), 69, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{7, UPB_SIZE(60, 80), 70, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{8, UPB_SIZE(24, 96), 71, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{9, UPB_SIZE(28, 24), 72, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{10, UPB_SIZE(68, 104), 73, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{17, UPB_SIZE(32, 28), 74, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FieldDescriptorProto_msg_init = {
&google_protobuf_FieldDescriptorProto__submsgs[0],
&google_protobuf_FieldDescriptorProto__fields[0],
UPB_SIZE(80, 120), 11, kUpb_ExtMode_NonExtendable, 10, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FieldDescriptorProto",
#endif
};
const upb_MiniTable* google__protobuf__FieldDescriptorProto_msg_init_ptr = &google__protobuf__FieldDescriptorProto_msg_init;
static const upb_MiniTableSubInternal google_protobuf_OneofDescriptorProto__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__OneofOptions_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_OneofDescriptorProto__fields[2] = {
{1, 16, 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(12, 32), 65, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__OneofDescriptorProto_msg_init = {
&google_protobuf_OneofDescriptorProto__submsgs[0],
&google_protobuf_OneofDescriptorProto__fields[0],
UPB_SIZE(24, 40), 2, kUpb_ExtMode_NonExtendable, 2, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.OneofDescriptorProto",
#endif
};
const upb_MiniTable* google__protobuf__OneofDescriptorProto_msg_init_ptr = &google__protobuf__OneofDescriptorProto_msg_init;
static const upb_MiniTableSubInternal google_protobuf_EnumDescriptorProto__submsgs[3] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__EnumValueDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__EnumOptions_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__EnumDescriptorProto__EnumReservedRange_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_EnumDescriptorProto__fields[5] = {
{1, UPB_SIZE(28, 16), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(12, 32), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 40), 65, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(20, 48), 0, 2, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(24, 56), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Array | (int)kUpb_LabelFlags_IsAlternate | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__EnumDescriptorProto_msg_init = {
&google_protobuf_EnumDescriptorProto__submsgs[0],
&google_protobuf_EnumDescriptorProto__fields[0],
UPB_SIZE(40, 64), 5, kUpb_ExtMode_NonExtendable, 5, UPB_FASTTABLE_MASK(56), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.EnumDescriptorProto",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x002000003f000012, &upb_prm_1bt_max64b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x003000003f020022, &upb_prm_1bt_max64b},
{0x003800003f00002a, &upb_prs_1bt},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__EnumDescriptorProto_msg_init_ptr = &google__protobuf__EnumDescriptorProto_msg_init;
static const upb_MiniTableField google_protobuf_EnumDescriptorProto_EnumReservedRange__fields[2] = {
{1, 12, 64, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{2, 16, 65, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__EnumDescriptorProto__EnumReservedRange_msg_init = {
NULL,
&google_protobuf_EnumDescriptorProto_EnumReservedRange__fields[0],
24, 2, kUpb_ExtMode_NonExtendable, 2, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.EnumDescriptorProto.EnumReservedRange",
#endif
};
const upb_MiniTable* google__protobuf__EnumDescriptorProto__EnumReservedRange_msg_init_ptr = &google__protobuf__EnumDescriptorProto__EnumReservedRange_msg_init;
static const upb_MiniTableSubInternal google_protobuf_EnumValueDescriptorProto__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__EnumValueOptions_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_EnumValueDescriptorProto__fields[3] = {
{1, UPB_SIZE(20, 16), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, 12, 65, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 32), 66, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__EnumValueDescriptorProto_msg_init = {
&google_protobuf_EnumValueDescriptorProto__submsgs[0],
&google_protobuf_EnumValueDescriptorProto__fields[0],
UPB_SIZE(32, 40), 3, kUpb_ExtMode_NonExtendable, 3, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.EnumValueDescriptorProto",
#endif
};
const upb_MiniTable* google__protobuf__EnumValueDescriptorProto_msg_init_ptr = &google__protobuf__EnumValueDescriptorProto_msg_init;
static const upb_MiniTableSubInternal google_protobuf_ServiceDescriptorProto__submsgs[2] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__MethodDescriptorProto_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__ServiceOptions_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_ServiceDescriptorProto__fields[3] = {
{1, UPB_SIZE(20, 16), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(12, 32), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 40), 65, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__ServiceDescriptorProto_msg_init = {
&google_protobuf_ServiceDescriptorProto__submsgs[0],
&google_protobuf_ServiceDescriptorProto__fields[0],
UPB_SIZE(32, 48), 3, kUpb_ExtMode_NonExtendable, 3, UPB_FASTTABLE_MASK(24), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.ServiceDescriptorProto",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x002000003f000012, &upb_prm_1bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__ServiceDescriptorProto_msg_init_ptr = &google__protobuf__ServiceDescriptorProto_msg_init;
static const upb_MiniTableSubInternal google_protobuf_MethodDescriptorProto__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__MethodOptions_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_MethodDescriptorProto__fields[6] = {
{1, UPB_SIZE(20, 16), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(28, 32), 65, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(36, 48), 66, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(12, 64), 67, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(16, 9), 68, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{6, UPB_SIZE(17, 10), 69, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__MethodDescriptorProto_msg_init = {
&google_protobuf_MethodDescriptorProto__submsgs[0],
&google_protobuf_MethodDescriptorProto__fields[0],
UPB_SIZE(48, 72), 6, kUpb_ExtMode_NonExtendable, 6, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.MethodDescriptorProto",
#endif
};
const upb_MiniTable* google__protobuf__MethodDescriptorProto_msg_init_ptr = &google__protobuf__MethodDescriptorProto_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FileOptions__submsgs[3] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__FileOptions__OptimizeMode_enum_init},
};
static const upb_MiniTableField google_protobuf_FileOptions__fields[21] = {
{1, UPB_SIZE(32, 24), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{8, 40, 65, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{9, 12, 66, 2, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{10, 16, 67, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{11, UPB_SIZE(48, 56), 68, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{16, 17, 69, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{17, 18, 70, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{18, 19, 71, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{20, 20, 72, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{23, 21, 73, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{27, 22, 74, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{31, 23, 75, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{36, UPB_SIZE(56, 72), 76, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{37, UPB_SIZE(64, 88), 77, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{39, UPB_SIZE(72, 104), 78, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{40, UPB_SIZE(80, 120), 79, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{41, UPB_SIZE(88, 136), 80, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{44, UPB_SIZE(96, 152), 81, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{45, UPB_SIZE(104, 168), 82, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{50, UPB_SIZE(24, 184), 83, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(28, 192), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FileOptions_msg_init = {
&google_protobuf_FileOptions__submsgs[0],
&google_protobuf_FileOptions__fields[0],
UPB_SIZE(112, 200), 21, kUpb_ExtMode_Extendable, 1, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FileOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x00c000003f013eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__FileOptions_msg_init_ptr = &google__protobuf__FileOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_MessageOptions__submsgs[2] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_MessageOptions__fields[7] = {
{1, 9, 64, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{2, 10, 65, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{3, 11, 66, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{7, 12, 67, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{11, 13, 68, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{12, 16, 69, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(20, 24), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__MessageOptions_msg_init = {
&google_protobuf_MessageOptions__submsgs[0],
&google_protobuf_MessageOptions__fields[0],
UPB_SIZE(24, 32), 7, kUpb_ExtMode_Extendable, 3, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.MessageOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001800003f013eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__MessageOptions_msg_init_ptr = &google__protobuf__MessageOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FieldOptions__submsgs[8] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FieldOptions__EditionDefault_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FieldOptions__FeatureSupport_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__FieldOptions__CType_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FieldOptions__JSType_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FieldOptions__OptionRetention_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FieldOptions__OptionTargetType_enum_init},
};
static const upb_MiniTableField google_protobuf_FieldOptions__fields[14] = {
{1, 12, 64, 4, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{2, 16, 65, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{3, 17, 66, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{5, 18, 67, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{6, 20, 68, 5, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{10, 24, 69, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{15, 25, 70, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{16, 26, 71, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{17, 28, 72, 6, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{19, 32, 0, 7, 14, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{20, UPB_SIZE(36, 40), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{21, UPB_SIZE(40, 48), 73, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{22, UPB_SIZE(44, 56), 74, 2, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(48, 64), 0, 3, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FieldOptions_msg_init = {
&google_protobuf_FieldOptions__submsgs[0],
&google_protobuf_FieldOptions__fields[0],
UPB_SIZE(56, 72), 14, kUpb_ExtMode_Extendable, 3, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FieldOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x002800003f0001a2, &upb_prm_2bt_max64b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x004000003f033eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__FieldOptions_msg_init_ptr = &google__protobuf__FieldOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FieldOptions_EditionDefault__submsgs[1] = {
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
};
static const upb_MiniTableField google_protobuf_FieldOptions_EditionDefault__fields[2] = {
{2, 16, 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{3, 12, 65, 0, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FieldOptions__EditionDefault_msg_init = {
&google_protobuf_FieldOptions_EditionDefault__submsgs[0],
&google_protobuf_FieldOptions_EditionDefault__fields[0],
UPB_SIZE(24, 32), 2, kUpb_ExtMode_NonExtendable, 0, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FieldOptions.EditionDefault",
#endif
};
const upb_MiniTable* google__protobuf__FieldOptions__EditionDefault_msg_init_ptr = &google__protobuf__FieldOptions__EditionDefault_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FieldOptions_FeatureSupport__submsgs[3] = {
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
};
static const upb_MiniTableField google_protobuf_FieldOptions_FeatureSupport__fields[4] = {
{1, 12, 64, 0, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{2, 16, 65, 1, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{3, 24, 66, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{4, 20, 67, 2, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FieldOptions__FeatureSupport_msg_init = {
&google_protobuf_FieldOptions_FeatureSupport__submsgs[0],
&google_protobuf_FieldOptions_FeatureSupport__fields[0],
UPB_SIZE(32, 40), 4, kUpb_ExtMode_NonExtendable, 4, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FieldOptions.FeatureSupport",
#endif
};
const upb_MiniTable* google__protobuf__FieldOptions__FeatureSupport_msg_init_ptr = &google__protobuf__FieldOptions__FeatureSupport_msg_init;
static const upb_MiniTableSubInternal google_protobuf_OneofOptions__submsgs[2] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_OneofOptions__fields[2] = {
{1, UPB_SIZE(12, 16), 64, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(16, 24), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__OneofOptions_msg_init = {
&google_protobuf_OneofOptions__submsgs[0],
&google_protobuf_OneofOptions__fields[0],
UPB_SIZE(24, 32), 2, kUpb_ExtMode_Extendable, 1, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.OneofOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001800003f013eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__OneofOptions_msg_init_ptr = &google__protobuf__OneofOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_EnumOptions__submsgs[2] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_EnumOptions__fields[5] = {
{2, 9, 64, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{3, 10, 65, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{6, 11, 66, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{7, UPB_SIZE(12, 16), 67, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(16, 24), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__EnumOptions_msg_init = {
&google_protobuf_EnumOptions__submsgs[0],
&google_protobuf_EnumOptions__fields[0],
UPB_SIZE(24, 32), 5, kUpb_ExtMode_Extendable, 0, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.EnumOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001800003f013eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__EnumOptions_msg_init_ptr = &google__protobuf__EnumOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_EnumValueOptions__submsgs[3] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FieldOptions__FeatureSupport_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_EnumValueOptions__fields[5] = {
{1, 9, 64, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(12, 16), 65, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 10), 66, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(20, 24), 67, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(24, 32), 0, 2, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__EnumValueOptions_msg_init = {
&google_protobuf_EnumValueOptions__submsgs[0],
&google_protobuf_EnumValueOptions__fields[0],
UPB_SIZE(32, 40), 5, kUpb_ExtMode_Extendable, 4, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.EnumValueOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x002000003f023eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__EnumValueOptions_msg_init_ptr = &google__protobuf__EnumValueOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_ServiceOptions__submsgs[2] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_ServiceOptions__fields[3] = {
{33, 9, 64, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{34, UPB_SIZE(12, 16), 65, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(16, 24), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__ServiceOptions_msg_init = {
&google_protobuf_ServiceOptions__submsgs[0],
&google_protobuf_ServiceOptions__fields[0],
UPB_SIZE(24, 32), 3, kUpb_ExtMode_Extendable, 0, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.ServiceOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001800003f013eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__ServiceOptions_msg_init_ptr = &google__protobuf__ServiceOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_MethodOptions__submsgs[3] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__MethodOptions__IdempotencyLevel_enum_init},
};
static const upb_MiniTableField google_protobuf_MethodOptions__fields[4] = {
{33, 9, 64, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
{34, 12, 65, 2, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{35, 16, 66, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{999, UPB_SIZE(20, 24), 0, 1, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__MethodOptions_msg_init = {
&google_protobuf_MethodOptions__submsgs[0],
&google_protobuf_MethodOptions__fields[0],
UPB_SIZE(24, 32), 4, kUpb_ExtMode_Extendable, 0, UPB_FASTTABLE_MASK(248), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.MethodOptions",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001800003f013eba, &upb_prm_2bt_max128b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__MethodOptions_msg_init_ptr = &google__protobuf__MethodOptions_msg_init;
static const upb_MiniTableSubInternal google_protobuf_UninterpretedOption__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__UninterpretedOption__NamePart_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_UninterpretedOption__fields[7] = {
{2, UPB_SIZE(12, 16), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 24), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(24, 40), 65, kUpb_NoSub, 4, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(32, 48), 66, kUpb_NoSub, 3, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
{6, UPB_SIZE(40, 56), 67, kUpb_NoSub, 1, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
{7, UPB_SIZE(48, 64), 68, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{8, UPB_SIZE(56, 80), 69, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__UninterpretedOption_msg_init = {
&google_protobuf_UninterpretedOption__submsgs[0],
&google_protobuf_UninterpretedOption__fields[0],
UPB_SIZE(64, 96), 7, kUpb_ExtMode_NonExtendable, 0, UPB_FASTTABLE_MASK(24), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.UninterpretedOption",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001000003f000012, &upb_prm_1bt_max64b},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__UninterpretedOption_msg_init_ptr = &google__protobuf__UninterpretedOption_msg_init;
static const upb_MiniTableField google_protobuf_UninterpretedOption_NamePart__fields[2] = {
{1, UPB_SIZE(12, 16), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{2, 9, 65, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__UninterpretedOption__NamePart_msg_init = {
NULL,
&google_protobuf_UninterpretedOption_NamePart__fields[0],
UPB_SIZE(24, 32), 2, kUpb_ExtMode_NonExtendable, 2, UPB_FASTTABLE_MASK(255), 2,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.UninterpretedOption.NamePart",
#endif
};
const upb_MiniTable* google__protobuf__UninterpretedOption__NamePart_msg_init_ptr = &google__protobuf__UninterpretedOption__NamePart_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FeatureSet__submsgs[6] = {
{.UPB_PRIVATE(subenum) = &google__protobuf__FeatureSet__FieldPresence_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FeatureSet__EnumType_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FeatureSet__RepeatedFieldEncoding_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FeatureSet__Utf8Validation_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FeatureSet__MessageEncoding_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__FeatureSet__JsonFormat_enum_init},
};
static const upb_MiniTableField google_protobuf_FeatureSet__fields[6] = {
{1, 12, 64, 0, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{2, 16, 65, 1, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{3, 20, 66, 2, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{4, 24, 67, 3, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{5, 28, 68, 4, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{6, 32, 69, 5, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FeatureSet_msg_init = {
&google_protobuf_FeatureSet__submsgs[0],
&google_protobuf_FeatureSet__fields[0],
40, 6, kUpb_ExtMode_Extendable, 6, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FeatureSet",
#endif
};
const upb_MiniTable* google__protobuf__FeatureSet_msg_init_ptr = &google__protobuf__FeatureSet_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FeatureSetDefaults__submsgs[3] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSetDefaults__FeatureSetEditionDefault_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
};
static const upb_MiniTableField google_protobuf_FeatureSetDefaults__fields[3] = {
{1, UPB_SIZE(12, 24), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(16, 12), 64, 1, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(20, 16), 65, 2, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FeatureSetDefaults_msg_init = {
&google_protobuf_FeatureSetDefaults__submsgs[0],
&google_protobuf_FeatureSetDefaults__fields[0],
UPB_SIZE(24, 32), 3, kUpb_ExtMode_NonExtendable, 1, UPB_FASTTABLE_MASK(8), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FeatureSetDefaults",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001800003f00000a, &upb_prm_1bt_max64b},
})
};
const upb_MiniTable* google__protobuf__FeatureSetDefaults_msg_init_ptr = &google__protobuf__FeatureSetDefaults_msg_init;
static const upb_MiniTableSubInternal google_protobuf_FeatureSetDefaults_FeatureSetEditionDefault__submsgs[3] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(submsg) = &google__protobuf__FeatureSet_msg_init_ptr},
{.UPB_PRIVATE(subenum) = &google__protobuf__Edition_enum_init},
};
static const upb_MiniTableField google_protobuf_FeatureSetDefaults_FeatureSetEditionDefault__fields[3] = {
{3, 12, 64, 2, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{4, 16, 65, 0, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(20, 24), 66, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__FeatureSetDefaults__FeatureSetEditionDefault_msg_init = {
&google_protobuf_FeatureSetDefaults_FeatureSetEditionDefault__submsgs[0],
&google_protobuf_FeatureSetDefaults_FeatureSetEditionDefault__fields[0],
UPB_SIZE(24, 32), 3, kUpb_ExtMode_NonExtendable, 0, UPB_FASTTABLE_MASK(255), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault",
#endif
};
const upb_MiniTable* google__protobuf__FeatureSetDefaults__FeatureSetEditionDefault_msg_init_ptr = &google__protobuf__FeatureSetDefaults__FeatureSetEditionDefault_msg_init;
static const upb_MiniTableSubInternal google_protobuf_SourceCodeInfo__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__SourceCodeInfo__Location_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_SourceCodeInfo__fields[1] = {
{1, 8, 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__SourceCodeInfo_msg_init = {
&google_protobuf_SourceCodeInfo__submsgs[0],
&google_protobuf_SourceCodeInfo__fields[0],
16, 1, kUpb_ExtMode_Extendable, 1, UPB_FASTTABLE_MASK(8), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.SourceCodeInfo",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x000800003f00000a, &upb_prm_1bt_max128b},
})
};
const upb_MiniTable* google__protobuf__SourceCodeInfo_msg_init_ptr = &google__protobuf__SourceCodeInfo_msg_init;
static const upb_MiniTableField google_protobuf_SourceCodeInfo_Location__fields[5] = {
{1, UPB_SIZE(12, 16), 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Array | (int)kUpb_LabelFlags_IsPacked | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(16, 24), 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Array | (int)kUpb_LabelFlags_IsPacked | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(24, 32), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(32, 48), 65, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{6, UPB_SIZE(20, 64), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Array | (int)kUpb_LabelFlags_IsAlternate | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__SourceCodeInfo__Location_msg_init = {
NULL,
&google_protobuf_SourceCodeInfo_Location__fields[0],
UPB_SIZE(40, 72), 5, kUpb_ExtMode_NonExtendable, 4, UPB_FASTTABLE_MASK(56), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.SourceCodeInfo.Location",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001000003f00000a, &upb_ppv4_1bt},
{0x001800003f000012, &upb_ppv4_1bt},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x004000003f000032, &upb_prs_1bt},
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
})
};
const upb_MiniTable* google__protobuf__SourceCodeInfo__Location_msg_init_ptr = &google__protobuf__SourceCodeInfo__Location_msg_init;
static const upb_MiniTableSubInternal google_protobuf_GeneratedCodeInfo__submsgs[1] = {
{.UPB_PRIVATE(submsg) = &google__protobuf__GeneratedCodeInfo__Annotation_msg_init_ptr},
};
static const upb_MiniTableField google_protobuf_GeneratedCodeInfo__fields[1] = {
{1, 8, 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__GeneratedCodeInfo_msg_init = {
&google_protobuf_GeneratedCodeInfo__submsgs[0],
&google_protobuf_GeneratedCodeInfo__fields[0],
16, 1, kUpb_ExtMode_NonExtendable, 1, UPB_FASTTABLE_MASK(8), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.GeneratedCodeInfo",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x000800003f00000a, &upb_prm_1bt_max64b},
})
};
const upb_MiniTable* google__protobuf__GeneratedCodeInfo_msg_init_ptr = &google__protobuf__GeneratedCodeInfo_msg_init;
static const upb_MiniTableSubInternal google_protobuf_GeneratedCodeInfo_Annotation__submsgs[1] = {
{.UPB_PRIVATE(subenum) = &google__protobuf__GeneratedCodeInfo__Annotation__Semantic_enum_init},
};
static const upb_MiniTableField google_protobuf_GeneratedCodeInfo_Annotation__fields[5] = {
{1, UPB_SIZE(12, 24), 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Array | (int)kUpb_LabelFlags_IsPacked | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
{2, UPB_SIZE(28, 32), 64, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | (int)kUpb_LabelFlags_IsAlternate | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
{3, UPB_SIZE(16, 12), 65, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{4, UPB_SIZE(20, 16), 66, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
{5, UPB_SIZE(24, 20), 67, 0, 14, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
};
const upb_MiniTable google__protobuf__GeneratedCodeInfo__Annotation_msg_init = {
&google_protobuf_GeneratedCodeInfo_Annotation__submsgs[0],
&google_protobuf_GeneratedCodeInfo_Annotation__fields[0],
UPB_SIZE(40, 48), 5, kUpb_ExtMode_NonExtendable, 5, UPB_FASTTABLE_MASK(8), 0,
#ifdef UPB_TRACING_ENABLED
"google.protobuf.GeneratedCodeInfo.Annotation",
#endif
UPB_FASTTABLE_INIT({
{0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
{0x001800003f00000a, &upb_ppv4_1bt},
})
};
const upb_MiniTable* google__protobuf__GeneratedCodeInfo__Annotation_msg_init_ptr = &google__protobuf__GeneratedCodeInfo__Annotation_msg_init;
const upb_MiniTableEnum google__protobuf__Edition_enum_init = {
64,
9,
{
0x7,
0x0,
0x384,
0x3e6,
0x3e7,
0x3e8,
0x3e9,
0x1869d,
0x1869e,
0x1869f,
0x7fffffff,
},
};
const upb_MiniTableEnum google__protobuf__ExtensionRangeOptions__VerificationState_enum_init = {
64,
0,
{
0x3,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FeatureSet__EnumType_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FeatureSet__FieldPresence_enum_init = {
64,
0,
{
0xf,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FeatureSet__JsonFormat_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FeatureSet__MessageEncoding_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FeatureSet__RepeatedFieldEncoding_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FeatureSet__Utf8Validation_enum_init = {
64,
0,
{
0xd,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FieldDescriptorProto__Label_enum_init = {
64,
0,
{
0xe,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FieldDescriptorProto__Type_enum_init = {
64,
0,
{
0x7fffe,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FieldOptions__CType_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FieldOptions__JSType_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FieldOptions__OptionRetention_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FieldOptions__OptionTargetType_enum_init = {
64,
0,
{
0x3ff,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__FileOptions__OptimizeMode_enum_init = {
64,
0,
{
0xe,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__GeneratedCodeInfo__Annotation__Semantic_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
const upb_MiniTableEnum google__protobuf__MethodOptions__IdempotencyLevel_enum_init = {
64,
0,
{
0x7,
0x0,
},
};
static const upb_MiniTable *messages_layout[33] = {
&google__protobuf__FileDescriptorSet_msg_init,
&google__protobuf__FileDescriptorProto_msg_init,
&google__protobuf__DescriptorProto_msg_init,
&google__protobuf__DescriptorProto__ExtensionRange_msg_init,
&google__protobuf__DescriptorProto__ReservedRange_msg_init,
&google__protobuf__ExtensionRangeOptions_msg_init,
&google__protobuf__ExtensionRangeOptions__Declaration_msg_init,
&google__protobuf__FieldDescriptorProto_msg_init,
&google__protobuf__OneofDescriptorProto_msg_init,
&google__protobuf__EnumDescriptorProto_msg_init,
&google__protobuf__EnumDescriptorProto__EnumReservedRange_msg_init,
&google__protobuf__EnumValueDescriptorProto_msg_init,
&google__protobuf__ServiceDescriptorProto_msg_init,
&google__protobuf__MethodDescriptorProto_msg_init,
&google__protobuf__FileOptions_msg_init,
&google__protobuf__MessageOptions_msg_init,
&google__protobuf__FieldOptions_msg_init,
&google__protobuf__FieldOptions__EditionDefault_msg_init,
&google__protobuf__FieldOptions__FeatureSupport_msg_init,
&google__protobuf__OneofOptions_msg_init,
&google__protobuf__EnumOptions_msg_init,
&google__protobuf__EnumValueOptions_msg_init,
&google__protobuf__ServiceOptions_msg_init,
&google__protobuf__MethodOptions_msg_init,
&google__protobuf__UninterpretedOption_msg_init,
&google__protobuf__UninterpretedOption__NamePart_msg_init,
&google__protobuf__FeatureSet_msg_init,
&google__protobuf__FeatureSetDefaults_msg_init,
&google__protobuf__FeatureSetDefaults__FeatureSetEditionDefault_msg_init,
&google__protobuf__SourceCodeInfo_msg_init,
&google__protobuf__SourceCodeInfo__Location_msg_init,
&google__protobuf__GeneratedCodeInfo_msg_init,
&google__protobuf__GeneratedCodeInfo__Annotation_msg_init,
};
static const upb_MiniTableEnum *enums_layout[17] = {
&google__protobuf__Edition_enum_init,
&google__protobuf__ExtensionRangeOptions__VerificationState_enum_init,
&google__protobuf__FeatureSet__EnumType_enum_init,
&google__protobuf__FeatureSet__FieldPresence_enum_init,
&google__protobuf__FeatureSet__JsonFormat_enum_init,
&google__protobuf__FeatureSet__MessageEncoding_enum_init,
&google__protobuf__FeatureSet__RepeatedFieldEncoding_enum_init,
&google__protobuf__FeatureSet__Utf8Validation_enum_init,
&google__protobuf__FieldDescriptorProto__Label_enum_init,
&google__protobuf__FieldDescriptorProto__Type_enum_init,
&google__protobuf__FieldOptions__CType_enum_init,
&google__protobuf__FieldOptions__JSType_enum_init,
&google__protobuf__FieldOptions__OptionRetention_enum_init,
&google__protobuf__FieldOptions__OptionTargetType_enum_init,
&google__protobuf__FileOptions__OptimizeMode_enum_init,
&google__protobuf__GeneratedCodeInfo__Annotation__Semantic_enum_init,
&google__protobuf__MethodOptions__IdempotencyLevel_enum_init,
};
const upb_MiniTableFile google_protobuf_descriptor_proto_upb_file_layout = {
messages_layout,
enums_layout,
NULL,
33,
17,
0,
};
/*
* upb_table Implementation
*
* Implementation is heavily inspired by Lua's ltable.c.
*/
#include <string.h>
// Must be last.
#define UPB_MAXARRSIZE 16 // 2**16 = 64k.
// From Chromium.
#define ARRAY_SIZE(x) \
((sizeof(x) / sizeof(0 [x])) / ((size_t)(!(sizeof(x) % sizeof(0 [x])))))
static const double MAX_LOAD = 0.85;
/* The minimum utilization of the array part of a mixed hash/array table. This
* is a speed/memory-usage tradeoff (though it's not straightforward because of
* cache effects). The lower this is, the more memory we'll use. */
static const double MIN_DENSITY = 0.1;
static bool is_pow2(uint64_t v) { return v == 0 || (v & (v - 1)) == 0; }
static upb_value _upb_value_val(uint64_t val) {
upb_value ret;
_upb_value_setval(&ret, val);
return ret;
}
static int log2ceil(uint64_t v) {
int ret = 0;
bool pow2 = is_pow2(v);
while (v >>= 1) ret++;
ret = pow2 ? ret : ret + 1; // Ceiling.
return UPB_MIN(UPB_MAXARRSIZE, ret);
}
/* A type to represent the lookup key of either a strtable or an inttable. */
typedef union {
uintptr_t num;
struct {
const char* str;
size_t len;
} str;
} lookupkey_t;
static lookupkey_t strkey2(const char* str, size_t len) {
lookupkey_t k;
k.str.str = str;
k.str.len = len;
return k;
}
static lookupkey_t intkey(uintptr_t key) {
lookupkey_t k;
k.num = key;
return k;
}
typedef uint32_t hashfunc_t(upb_tabkey key);
typedef bool eqlfunc_t(upb_tabkey k1, lookupkey_t k2);
/* Base table (shared code) ***************************************************/
static uint32_t upb_inthash(uintptr_t key) { return (uint32_t)key; }
static const upb_tabent* upb_getentry(const upb_table* t, uint32_t hash) {
return t->entries + (hash & t->mask);
}
static bool upb_arrhas(upb_tabval key) { return key.val != (uint64_t)-1; }
static bool isfull(upb_table* t) { return t->count == t->max_count; }
static bool init(upb_table* t, uint8_t size_lg2, upb_Arena* a) {
size_t bytes;
t->count = 0;
t->size_lg2 = size_lg2;
t->mask = upb_table_size(t) ? upb_table_size(t) - 1 : 0;
t->max_count = upb_table_size(t) * MAX_LOAD;
bytes = upb_table_size(t) * sizeof(upb_tabent);
if (bytes > 0) {
t->entries = upb_Arena_Malloc(a, bytes);
if (!t->entries) return false;
memset(t->entries, 0, bytes);
} else {
t->entries = NULL;
}
return true;
}
static upb_tabent* emptyent(upb_table* t, upb_tabent* e) {
upb_tabent* begin = t->entries;
upb_tabent* end = begin + upb_table_size(t);
for (e = e + 1; e < end; e++) {
if (upb_tabent_isempty(e)) return e;
}
for (e = begin; e < end; e++) {
if (upb_tabent_isempty(e)) return e;
}
UPB_ASSERT(false);
return NULL;
}
static upb_tabent* getentry_mutable(upb_table* t, uint32_t hash) {
return (upb_tabent*)upb_getentry(t, hash);
}
static const upb_tabent* findentry(const upb_table* t, lookupkey_t key,
uint32_t hash, eqlfunc_t* eql) {
const upb_tabent* e;
if (t->size_lg2 == 0) return NULL;
e = upb_getentry(t, hash);
if (upb_tabent_isempty(e)) return NULL;
while (1) {
if (eql(e->key, key)) return e;
if ((e = e->next) == NULL) return NULL;
}
}
static upb_tabent* findentry_mutable(upb_table* t, lookupkey_t key,
uint32_t hash, eqlfunc_t* eql) {
return (upb_tabent*)findentry(t, key, hash, eql);
}
static bool lookup(const upb_table* t, lookupkey_t key, upb_value* v,
uint32_t hash, eqlfunc_t* eql) {
const upb_tabent* e = findentry(t, key, hash, eql);
if (e) {
if (v) {
_upb_value_setval(v, e->val.val);
}
return true;
} else {
return false;
}
}
/* The given key must not already exist in the table. */
static void insert(upb_table* t, lookupkey_t key, upb_tabkey tabkey,
upb_value val, uint32_t hash, hashfunc_t* hashfunc,
eqlfunc_t* eql) {
upb_tabent* mainpos_e;
upb_tabent* our_e;
UPB_ASSERT(findentry(t, key, hash, eql) == NULL);
t->count++;
mainpos_e = getentry_mutable(t, hash);
our_e = mainpos_e;
if (upb_tabent_isempty(mainpos_e)) {
/* Our main position is empty; use it. */
our_e->next = NULL;
} else {
/* Collision. */
upb_tabent* new_e = emptyent(t, mainpos_e);
/* Head of collider's chain. */
upb_tabent* chain = getentry_mutable(t, hashfunc(mainpos_e->key));
if (chain == mainpos_e) {
/* Existing ent is in its main position (it has the same hash as us, and
* is the head of our chain). Insert to new ent and append to this chain.
*/
new_e->next = mainpos_e->next;
mainpos_e->next = new_e;
our_e = new_e;
} else {
/* Existing ent is not in its main position (it is a node in some other
* chain). This implies that no existing ent in the table has our hash.
* Evict it (updating its chain) and use its ent for head of our chain. */
*new_e = *mainpos_e; /* copies next. */
while (chain->next != mainpos_e) {
chain = (upb_tabent*)chain->next;
UPB_ASSERT(chain);
}
chain->next = new_e;
our_e = mainpos_e;
our_e->next = NULL;
}
}
our_e->key = tabkey;
our_e->val.val = val.val;
UPB_ASSERT(findentry(t, key, hash, eql) == our_e);
}
static bool rm(upb_table* t, lookupkey_t key, upb_value* val,
upb_tabkey* removed, uint32_t hash, eqlfunc_t* eql) {
upb_tabent* chain = getentry_mutable(t, hash);
if (upb_tabent_isempty(chain)) return false;
if (eql(chain->key, key)) {
/* Element to remove is at the head of its chain. */
t->count--;
if (val) _upb_value_setval(val, chain->val.val);
if (removed) *removed = chain->key;
if (chain->next) {
upb_tabent* move = (upb_tabent*)chain->next;
*chain = *move;
move->key = 0; /* Make the slot empty. */
} else {
chain->key = 0; /* Make the slot empty. */
}
return true;
} else {
/* Element to remove is either in a non-head position or not in the
* table. */
while (chain->next && !eql(chain->next->key, key)) {
chain = (upb_tabent*)chain->next;
}
if (chain->next) {
/* Found element to remove. */
upb_tabent* rm = (upb_tabent*)chain->next;
t->count--;
if (val) _upb_value_setval(val, chain->next->val.val);
if (removed) *removed = rm->key;
rm->key = 0; /* Make the slot empty. */
chain->next = rm->next;
return true;
} else {
/* Element to remove is not in the table. */
return false;
}
}
}
static size_t next(const upb_table* t, size_t i) {
do {
if (++i >= upb_table_size(t)) return SIZE_MAX - 1; /* Distinct from -1. */
} while (upb_tabent_isempty(&t->entries[i]));
return i;
}
static size_t begin(const upb_table* t) { return next(t, -1); }
/* upb_strtable ***************************************************************/
/* A simple "subclass" of upb_table that only adds a hash function for strings.
*/
static upb_tabkey strcopy(lookupkey_t k2, upb_Arena* a) {
uint32_t len = (uint32_t)k2.str.len;
char* str = upb_Arena_Malloc(a, k2.str.len + sizeof(uint32_t) + 1);
if (str == NULL) return 0;
memcpy(str, &len, sizeof(uint32_t));
if (k2.str.len) memcpy(str + sizeof(uint32_t), k2.str.str, k2.str.len);
str[sizeof(uint32_t) + k2.str.len] = '\0';
return (uintptr_t)str;
}
/* Adapted from ABSL's wyhash. */
static uint64_t UnalignedLoad64(const void* p) {
uint64_t val;
memcpy(&val, p, 8);
return val;
}
static uint32_t UnalignedLoad32(const void* p) {
uint32_t val;
memcpy(&val, p, 4);
return val;
}
#if defined(_MSC_VER) && defined(_M_X64)
#include <intrin.h>
#endif
/* Computes a * b, returning the low 64 bits of the result and storing the high
* 64 bits in |*high|. */
static uint64_t upb_umul128(uint64_t v0, uint64_t v1, uint64_t* out_high) {
#ifdef __SIZEOF_INT128__
__uint128_t p = v0;
p *= v1;
*out_high = (uint64_t)(p >> 64);
return (uint64_t)p;
#elif defined(_MSC_VER) && defined(_M_X64)
return _umul128(v0, v1, out_high);
#else
uint64_t a32 = v0 >> 32;
uint64_t a00 = v0 & 0xffffffff;
uint64_t b32 = v1 >> 32;
uint64_t b00 = v1 & 0xffffffff;
uint64_t high = a32 * b32;
uint64_t low = a00 * b00;
uint64_t mid1 = a32 * b00;
uint64_t mid2 = a00 * b32;
low += (mid1 << 32) + (mid2 << 32);
// Omit carry bit, for mixing we do not care about exact numerical precision.
high += (mid1 >> 32) + (mid2 >> 32);
*out_high = high;
return low;
#endif
}
static uint64_t WyhashMix(uint64_t v0, uint64_t v1) {
uint64_t high;
uint64_t low = upb_umul128(v0, v1, &high);
return low ^ high;
}
static uint64_t Wyhash(const void* data, size_t len, uint64_t seed,
const uint64_t salt[]) {
const uint8_t* ptr = (const uint8_t*)data;
uint64_t starting_length = (uint64_t)len;
uint64_t current_state = seed ^ salt[0];
if (len > 64) {
// If we have more than 64 bytes, we're going to handle chunks of 64
// bytes at a time. We're going to build up two separate hash states
// which we will then hash together.
uint64_t duplicated_state = current_state;
do {
uint64_t a = UnalignedLoad64(ptr);
uint64_t b = UnalignedLoad64(ptr + 8);
uint64_t c = UnalignedLoad64(ptr + 16);
uint64_t d = UnalignedLoad64(ptr + 24);
uint64_t e = UnalignedLoad64(ptr + 32);
uint64_t f = UnalignedLoad64(ptr + 40);
uint64_t g = UnalignedLoad64(ptr + 48);
uint64_t h = UnalignedLoad64(ptr + 56);
uint64_t cs0 = WyhashMix(a ^ salt[1], b ^ current_state);
uint64_t cs1 = WyhashMix(c ^ salt[2], d ^ current_state);
current_state = (cs0 ^ cs1);
uint64_t ds0 = WyhashMix(e ^ salt[3], f ^ duplicated_state);
uint64_t ds1 = WyhashMix(g ^ salt[4], h ^ duplicated_state);
duplicated_state = (ds0 ^ ds1);
ptr += 64;
len -= 64;
} while (len > 64);
current_state = current_state ^ duplicated_state;
}
// We now have a data `ptr` with at most 64 bytes and the current state
// of the hashing state machine stored in current_state.
while (len > 16) {
uint64_t a = UnalignedLoad64(ptr);
uint64_t b = UnalignedLoad64(ptr + 8);
current_state = WyhashMix(a ^ salt[1], b ^ current_state);
ptr += 16;
len -= 16;
}
// We now have a data `ptr` with at most 16 bytes.
uint64_t a = 0;
uint64_t b = 0;
if (len > 8) {
// When we have at least 9 and at most 16 bytes, set A to the first 64
// bits of the input and B to the last 64 bits of the input. Yes, they will
// overlap in the middle if we are working with less than the full 16
// bytes.
a = UnalignedLoad64(ptr);
b = UnalignedLoad64(ptr + len - 8);
} else if (len > 3) {
// If we have at least 4 and at most 8 bytes, set A to the first 32
// bits and B to the last 32 bits.
a = UnalignedLoad32(ptr);
b = UnalignedLoad32(ptr + len - 4);
} else if (len > 0) {
// If we have at least 1 and at most 3 bytes, read all of the provided
// bits into A, with some adjustments.
a = ((ptr[0] << 16) | (ptr[len >> 1] << 8) | ptr[len - 1]);
b = 0;
} else {
a = 0;
b = 0;
}
uint64_t w = WyhashMix(a ^ salt[1], b ^ current_state);
uint64_t z = salt[1] ^ starting_length;
return WyhashMix(w, z);
}
const uint64_t kWyhashSalt[5] = {
0x243F6A8885A308D3ULL, 0x13198A2E03707344ULL, 0xA4093822299F31D0ULL,
0x082EFA98EC4E6C89ULL, 0x452821E638D01377ULL,
};
uint32_t _upb_Hash(const void* p, size_t n, uint64_t seed) {
return Wyhash(p, n, seed, kWyhashSalt);
}
static uint32_t _upb_Hash_NoSeed(const char* p, size_t n) {
return _upb_Hash(p, n, 0);
}
static uint32_t strhash(upb_tabkey key) {
uint32_t len;
char* str = upb_tabstr(key, &len);
return _upb_Hash_NoSeed(str, len);
}
static bool streql(upb_tabkey k1, lookupkey_t k2) {
uint32_t len;
char* str = upb_tabstr(k1, &len);
return len == k2.str.len && (len == 0 || memcmp(str, k2.str.str, len) == 0);
}
bool upb_strtable_init(upb_strtable* t, size_t expected_size, upb_Arena* a) {
// Multiply by approximate reciprocal of MAX_LOAD (0.85), with pow2
// denominator.
size_t need_entries = (expected_size + 1) * 1204 / 1024;
UPB_ASSERT(need_entries >= expected_size * 0.85);
int size_lg2 = upb_Log2Ceiling(need_entries);
return init(&t->t, size_lg2, a);
}
void upb_strtable_clear(upb_strtable* t) {
size_t bytes = upb_table_size(&t->t) * sizeof(upb_tabent);
t->t.count = 0;
memset((char*)t->t.entries, 0, bytes);
}
bool upb_strtable_resize(upb_strtable* t, size_t size_lg2, upb_Arena* a) {
upb_strtable new_table;
if (!init(&new_table.t, size_lg2, a)) return false;
intptr_t iter = UPB_STRTABLE_BEGIN;
upb_StringView key;
upb_value val;
while (upb_strtable_next2(t, &key, &val, &iter)) {
upb_strtable_insert(&new_table, key.data, key.size, val, a);
}
*t = new_table;
return true;
}
bool upb_strtable_insert(upb_strtable* t, const char* k, size_t len,
upb_value v, upb_Arena* a) {
lookupkey_t key;
upb_tabkey tabkey;
uint32_t hash;
if (isfull(&t->t)) {
/* Need to resize. New table of double the size, add old elements to it. */
if (!upb_strtable_resize(t, t->t.size_lg2 + 1, a)) {
return false;
}
}
key = strkey2(k, len);
tabkey = strcopy(key, a);
if (tabkey == 0) return false;
hash = _upb_Hash_NoSeed(key.str.str, key.str.len);
insert(&t->t, key, tabkey, v, hash, &strhash, &streql);
return true;
}
bool upb_strtable_lookup2(const upb_strtable* t, const char* key, size_t len,
upb_value* v) {
uint32_t hash = _upb_Hash_NoSeed(key, len);
return lookup(&t->t, strkey2(key, len), v, hash, &streql);
}
bool upb_strtable_remove2(upb_strtable* t, const char* key, size_t len,
upb_value* val) {
uint32_t hash = _upb_Hash_NoSeed(key, len);
upb_tabkey tabkey;
return rm(&t->t, strkey2(key, len), val, &tabkey, hash, &streql);
}
/* Iteration */
void upb_strtable_begin(upb_strtable_iter* i, const upb_strtable* t) {
i->t = t;
i->index = begin(&t->t);
}
void upb_strtable_next(upb_strtable_iter* i) {
i->index = next(&i->t->t, i->index);
}
bool upb_strtable_done(const upb_strtable_iter* i) {
if (!i->t) return true;
return i->index >= upb_table_size(&i->t->t) ||
upb_tabent_isempty(str_tabent(i));
}
upb_StringView upb_strtable_iter_key(const upb_strtable_iter* i) {
upb_StringView key;
uint32_t len;
UPB_ASSERT(!upb_strtable_done(i));
key.data = upb_tabstr(str_tabent(i)->key, &len);
key.size = len;
return key;
}
upb_value upb_strtable_iter_value(const upb_strtable_iter* i) {
UPB_ASSERT(!upb_strtable_done(i));
return _upb_value_val(str_tabent(i)->val.val);
}
void upb_strtable_iter_setdone(upb_strtable_iter* i) {
i->t = NULL;
i->index = SIZE_MAX;
}
bool upb_strtable_iter_isequal(const upb_strtable_iter* i1,
const upb_strtable_iter* i2) {
if (upb_strtable_done(i1) && upb_strtable_done(i2)) return true;
return i1->t == i2->t && i1->index == i2->index;
}
/* upb_inttable ***************************************************************/
/* For inttables we use a hybrid structure where small keys are kept in an
* array and large keys are put in the hash table. */
static uint32_t inthash(upb_tabkey key) { return upb_inthash(key); }
static bool inteql(upb_tabkey k1, lookupkey_t k2) { return k1 == k2.num; }
static upb_tabval* mutable_array(upb_inttable* t) {
return (upb_tabval*)t->array;
}
static upb_tabval* inttable_val(upb_inttable* t, uintptr_t key) {
if (key < t->array_size) {
return upb_arrhas(t->array[key]) ? &(mutable_array(t)[key]) : NULL;
} else {
upb_tabent* e =
findentry_mutable(&t->t, intkey(key), upb_inthash(key), &inteql);
return e ? &e->val : NULL;
}
}
static const upb_tabval* inttable_val_const(const upb_inttable* t,
uintptr_t key) {
return inttable_val((upb_inttable*)t, key);
}
size_t upb_inttable_count(const upb_inttable* t) {
return t->t.count + t->array_count;
}
static void check(upb_inttable* t) {
UPB_UNUSED(t);
#if defined(UPB_DEBUG_TABLE) && !defined(NDEBUG)
{
// This check is very expensive (makes inserts/deletes O(N)).
size_t count = 0;
intptr_t iter = UPB_INTTABLE_BEGIN;
uintptr_t key;
upb_value val;
while (upb_inttable_next(t, &key, &val, &iter)) {
UPB_ASSERT(upb_inttable_lookup(t, key, NULL));
}
UPB_ASSERT(count == upb_inttable_count(t));
}
#endif
}
bool upb_inttable_sizedinit(upb_inttable* t, size_t asize, int hsize_lg2,
upb_Arena* a) {
size_t array_bytes;
if (!init(&t->t, hsize_lg2, a)) return false;
/* Always make the array part at least 1 long, so that we know key 0
* won't be in the hash part, which simplifies things. */
t->array_size = UPB_MAX(1, asize);
t->array_count = 0;
array_bytes = t->array_size * sizeof(upb_value);
t->array = upb_Arena_Malloc(a, array_bytes);
if (!t->array) {
return false;
}
memset(mutable_array(t), 0xff, array_bytes);
check(t);
return true;
}
bool upb_inttable_init(upb_inttable* t, upb_Arena* a) {
return upb_inttable_sizedinit(t, 0, 4, a);
}
bool upb_inttable_insert(upb_inttable* t, uintptr_t key, upb_value val,
upb_Arena* a) {
upb_tabval tabval;
tabval.val = val.val;
UPB_ASSERT(
upb_arrhas(tabval)); /* This will reject (uint64_t)-1. Fix this. */
if (key < t->array_size) {
UPB_ASSERT(!upb_arrhas(t->array[key]));
t->array_count++;
mutable_array(t)[key].val = val.val;
} else {
if (isfull(&t->t)) {
/* Need to resize the hash part, but we re-use the array part. */
size_t i;
upb_table new_table;
if (!init(&new_table, t->t.size_lg2 + 1, a)) {
return false;
}
for (i = begin(&t->t); i < upb_table_size(&t->t); i = next(&t->t, i)) {
const upb_tabent* e = &t->t.entries[i];
uint32_t hash;
upb_value v;
_upb_value_setval(&v, e->val.val);
hash = upb_inthash(e->key);
insert(&new_table, intkey(e->key), e->key, v, hash, &inthash, &inteql);
}
UPB_ASSERT(t->t.count == new_table.count);
t->t = new_table;
}
insert(&t->t, intkey(key), key, val, upb_inthash(key), &inthash, &inteql);
}
check(t);
return true;
}
bool upb_inttable_lookup(const upb_inttable* t, uintptr_t key, upb_value* v) {
const upb_tabval* table_v = inttable_val_const(t, key);
if (!table_v) return false;
if (v) _upb_value_setval(v, table_v->val);
return true;
}
bool upb_inttable_replace(upb_inttable* t, uintptr_t key, upb_value val) {
upb_tabval* table_v = inttable_val(t, key);
if (!table_v) return false;
table_v->val = val.val;
return true;
}
bool upb_inttable_remove(upb_inttable* t, uintptr_t key, upb_value* val) {
bool success;
if (key < t->array_size) {
if (upb_arrhas(t->array[key])) {
upb_tabval empty = UPB_TABVALUE_EMPTY_INIT;
t->array_count--;
if (val) {
_upb_value_setval(val, t->array[key].val);
}
mutable_array(t)[key] = empty;
success = true;
} else {
success = false;
}
} else {
success = rm(&t->t, intkey(key), val, NULL, upb_inthash(key), &inteql);
}
check(t);
return success;
}
void upb_inttable_compact(upb_inttable* t, upb_Arena* a) {
/* A power-of-two histogram of the table keys. */
size_t counts[UPB_MAXARRSIZE + 1] = {0};
/* The max key in each bucket. */
uintptr_t max[UPB_MAXARRSIZE + 1] = {0};
{
intptr_t iter = UPB_INTTABLE_BEGIN;
uintptr_t key;
upb_value val;
while (upb_inttable_next(t, &key, &val, &iter)) {
int bucket = log2ceil(key);
max[bucket] = UPB_MAX(max[bucket], key);
counts[bucket]++;
}
}
/* Find the largest power of two that satisfies the MIN_DENSITY
* definition (while actually having some keys). */
size_t arr_count = upb_inttable_count(t);
int size_lg2;
upb_inttable new_t;
for (size_lg2 = ARRAY_SIZE(counts) - 1; size_lg2 > 0; size_lg2--) {
if (counts[size_lg2] == 0) {
/* We can halve again without losing any entries. */
continue;
} else if (arr_count >= (1 << size_lg2) * MIN_DENSITY) {
break;
}
arr_count -= counts[size_lg2];
}
UPB_ASSERT(arr_count <= upb_inttable_count(t));
{
/* Insert all elements into new, perfectly-sized table. */
size_t arr_size = max[size_lg2] + 1; /* +1 so arr[max] will fit. */
size_t hash_count = upb_inttable_count(t) - arr_count;
size_t hash_size = hash_count ? (hash_count / MAX_LOAD) + 1 : 0;
int hashsize_lg2 = log2ceil(hash_size);
upb_inttable_sizedinit(&new_t, arr_size, hashsize_lg2, a);
{
intptr_t iter = UPB_INTTABLE_BEGIN;
uintptr_t key;
upb_value val;
while (upb_inttable_next(t, &key, &val, &iter)) {
upb_inttable_insert(&new_t, key, val, a);
}
}
UPB_ASSERT(new_t.array_size == arr_size);
UPB_ASSERT(new_t.t.size_lg2 == hashsize_lg2);
}
*t = new_t;
}
// Iteration.
bool upb_inttable_next(const upb_inttable* t, uintptr_t* key, upb_value* val,
intptr_t* iter) {
intptr_t i = *iter;
if ((size_t)(i + 1) <= t->array_size) {
while ((size_t)++i < t->array_size) {
upb_tabval ent = t->array[i];
if (upb_arrhas(ent)) {
*key = i;
*val = _upb_value_val(ent.val);
*iter = i;
return true;
}
}
i--; // Back up to exactly one position before the start of the table.
}
size_t tab_idx = next(&t->t, i - t->array_size);
if (tab_idx < upb_table_size(&t->t)) {
upb_tabent* ent = &t->t.entries[tab_idx];
*key = ent->key;
*val = _upb_value_val(ent->val.val);
*iter = tab_idx + t->array_size;
return true;
}
return false;
}
void upb_inttable_removeiter(upb_inttable* t, intptr_t* iter) {
intptr_t i = *iter;
if ((size_t)i < t->array_size) {
t->array_count--;
mutable_array(t)[i].val = -1;
} else {
upb_tabent* ent = &t->t.entries[i - t->array_size];
upb_tabent* prev = NULL;
// Linear search, not great.
upb_tabent* end = &t->t.entries[upb_table_size(&t->t)];
for (upb_tabent* e = t->t.entries; e != end; e++) {
if (e->next == ent) {
prev = e;
break;
}
}
if (prev) {
prev->next = ent->next;
}
t->t.count--;
ent->key = 0;
ent->next = NULL;
}
}
bool upb_strtable_next2(const upb_strtable* t, upb_StringView* key,
upb_value* val, intptr_t* iter) {
size_t tab_idx = next(&t->t, *iter);
if (tab_idx < upb_table_size(&t->t)) {
upb_tabent* ent = &t->t.entries[tab_idx];
uint32_t len;
key->data = upb_tabstr(ent->key, &len);
key->size = len;
*val = _upb_value_val(ent->val.val);
*iter = tab_idx;
return true;
}
return false;
}
void upb_strtable_removeiter(upb_strtable* t, intptr_t* iter) {
intptr_t i = *iter;
upb_tabent* ent = &t->t.entries[i];
upb_tabent* prev = NULL;
// Linear search, not great.
upb_tabent* end = &t->t.entries[upb_table_size(&t->t)];
for (upb_tabent* e = t->t.entries; e != end; e++) {
if (e->next == ent) {
prev = e;
break;
}
}
if (prev) {
prev->next = ent->next;
}
t->t.count--;
ent->key = 0;
ent->next = NULL;
}
void upb_strtable_setentryvalue(upb_strtable* t, intptr_t iter, upb_value v) {
upb_tabent* ent = &t->t.entries[iter];
ent->val.val = v.val;
}
// Must be last.
const char* upb_BufToUint64(const char* ptr, const char* end, uint64_t* val) {
uint64_t u64 = 0;
while (ptr < end) {
unsigned ch = *ptr - '0';
if (ch >= 10) break;
if (u64 > UINT64_MAX / 10 || u64 * 10 > UINT64_MAX - ch) {
return NULL; // integer overflow
}
u64 *= 10;
u64 += ch;
ptr++;
}
*val = u64;
return ptr;
}
const char* upb_BufToInt64(const char* ptr, const char* end, int64_t* val,
bool* is_neg) {
bool neg = false;
uint64_t u64;
if (ptr != end && *ptr == '-') {
ptr++;
neg = true;
}
ptr = upb_BufToUint64(ptr, end, &u64);
if (!ptr || u64 > (uint64_t)INT64_MAX + neg) {
return NULL; // integer overflow
}
*val = neg ? -u64 : u64;
if (is_neg) *is_neg = neg;
return ptr;
}
#include <float.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
// Must be last.
/* Miscellaneous utilities ****************************************************/
static void upb_FixLocale(char* p) {
/* printf() is dependent on locales; sadly there is no easy and portable way
* to avoid this. This little post-processing step will translate 1,2 -> 1.2
* since JSON needs the latter. Arguably a hack, but it is simple and the
* alternatives are far more complicated, platform-dependent, and/or larger
* in code size. */
for (; *p; p++) {
if (*p == ',') *p = '.';
}
}
void _upb_EncodeRoundTripDouble(double val, char* buf, size_t size) {
assert(size >= kUpb_RoundTripBufferSize);
if (isnan(val)) {
snprintf(buf, size, "%s", "nan");
return;
}
snprintf(buf, size, "%.*g", DBL_DIG, val);
if (strtod(buf, NULL) != val) {
snprintf(buf, size, "%.*g", DBL_DIG + 2, val);
assert(strtod(buf, NULL) == val);
}
upb_FixLocale(buf);
}
void _upb_EncodeRoundTripFloat(float val, char* buf, size_t size) {
assert(size >= kUpb_RoundTripBufferSize);
if (isnan(val)) {
snprintf(buf, size, "%s", "nan");
return;
}
snprintf(buf, size, "%.*g", FLT_DIG, val);
if (strtof(buf, NULL) != val) {
snprintf(buf, size, "%.*g", FLT_DIG + 3, val);
assert(strtof(buf, NULL) == val);
}
upb_FixLocale(buf);
}
#include <stdlib.h>
#include <string.h>
// Must be last.
// Determine the locale-specific radix character by calling sprintf() to print
// the number 1.5, then stripping off the digits. As far as I can tell, this
// is the only portable, thread-safe way to get the C library to divulge the
// locale's radix character. No, localeconv() is NOT thread-safe.
static int GetLocaleRadix(char *data, size_t capacity) {
char temp[16];
const int size = snprintf(temp, sizeof(temp), "%.1f", 1.5);
UPB_ASSERT(temp[0] == '1');
UPB_ASSERT(temp[size - 1] == '5');
UPB_ASSERT(size < capacity);
temp[size - 1] = '\0';
strcpy(data, temp + 1);
return size - 2;
}
// Populates a string identical to *input except that the character pointed to
// by pos (which should be '.') is replaced with the locale-specific radix.
static void LocalizeRadix(const char *input, const char *pos, char *output) {
const int len1 = pos - input;
char radix[8];
const int len2 = GetLocaleRadix(radix, sizeof(radix));
memcpy(output, input, len1);
memcpy(output + len1, radix, len2);
strcpy(output + len1 + len2, input + len1 + 1);
}
double _upb_NoLocaleStrtod(const char *str, char **endptr) {
// We cannot simply set the locale to "C" temporarily with setlocale()
// as this is not thread-safe. Instead, we try to parse in the current
// locale first. If parsing stops at a '.' character, then this is a
// pretty good hint that we're actually in some other locale in which
// '.' is not the radix character.
char *temp_endptr;
double result = strtod(str, &temp_endptr);
if (endptr != NULL) *endptr = temp_endptr;
if (*temp_endptr != '.') return result;
// Parsing halted on a '.'. Perhaps we're in a different locale? Let's
// try to replace the '.' with a locale-specific radix character and
// try again.
char localized[80];
LocalizeRadix(str, temp_endptr, localized);
char *localized_endptr;
result = strtod(localized, &localized_endptr);
if ((localized_endptr - &localized[0]) > (temp_endptr - str)) {
// This attempt got further, so replacing the decimal must have helped.
// Update endptr to point at the right location.
if (endptr != NULL) {
// size_diff is non-zero if the localized radix has multiple bytes.
int size_diff = strlen(localized) - strlen(str);
*endptr = (char *)str + (localized_endptr - &localized[0] - size_diff);
}
}
return result;
}
// Must be last.
int upb_Unicode_ToUTF8(uint32_t cp, char* out) {
if (cp <= 0x7f) {
out[0] = cp;
return 1;
}
if (cp <= 0x07ff) {
out[0] = (cp >> 6) | 0xc0;
out[1] = (cp & 0x3f) | 0x80;
return 2;
}
if (cp <= 0xffff) {
out[0] = (cp >> 12) | 0xe0;
out[1] = ((cp >> 6) & 0x3f) | 0x80;
out[2] = (cp & 0x3f) | 0x80;
return 3;
}
if (cp <= 0x10ffff) {
out[0] = (cp >> 18) | 0xf0;
out[1] = ((cp >> 12) & 0x3f) | 0x80;
out[2] = ((cp >> 6) & 0x3f) | 0x80;
out[3] = (cp & 0x3f) | 0x80;
return 4;
}
return 0;
}
#include <string.h>
// Must be last.
const upb_Extension* UPB_PRIVATE(_upb_Message_Getext)(
const struct upb_Message* msg, const upb_MiniTableExtension* e) {
size_t n;
const upb_Extension* ext = UPB_PRIVATE(_upb_Message_Getexts)(msg, &n);
// For now we use linear search exclusively to find extensions.
// If this becomes an issue due to messages with lots of extensions,
// we can introduce a table of some sort.
for (size_t i = 0; i < n; i++) {
if (ext[i].ext == e) {
return &ext[i];
}
}
return NULL;
}
const upb_Extension* UPB_PRIVATE(_upb_Message_Getexts)(
const struct upb_Message* msg, size_t* count) {
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
if (in) {
*count = (in->size - in->ext_begin) / sizeof(upb_Extension);
return UPB_PTR_AT(in, in->ext_begin, void);
} else {
*count = 0;
return NULL;
}
}
upb_Extension* UPB_PRIVATE(_upb_Message_GetOrCreateExtension)(
struct upb_Message* msg, const upb_MiniTableExtension* e, upb_Arena* a) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_Extension* ext = (upb_Extension*)UPB_PRIVATE(_upb_Message_Getext)(msg, e);
if (ext) return ext;
if (!UPB_PRIVATE(_upb_Message_Realloc)(msg, sizeof(upb_Extension), a))
return NULL;
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
in->ext_begin -= sizeof(upb_Extension);
ext = UPB_PTR_AT(in, in->ext_begin, void);
memset(ext, 0, sizeof(upb_Extension));
ext->ext = e;
return ext;
}
#include <math.h>
#include <string.h>
// Must be last.
const float kUpb_FltInfinity = INFINITY;
const double kUpb_Infinity = INFINITY;
// The latest win32 SDKs have an invalid definition of NAN.
// https://developercommunity.visualstudio.com/t/NAN-is-no-longer-compile-time-constant-i/10688907
//
// Unfortunately, the `0.0 / 0.0` workaround doesn't work in Clang under C23, so
// try __builtin_nan first, if that exists.
#ifdef _WIN32
#ifdef __has_builtin
#if __has_builtin(__builtin_nan)
#define UPB_NAN __builtin_nan("0")
#endif
#endif
#ifndef UPB_NAN
#define UPB_NAN 0.0 / 0.0
#endif
#else
// For !_WIN32, assume math.h works.
#define UPB_NAN NAN
#endif
const double kUpb_NaN = UPB_NAN;
bool UPB_PRIVATE(_upb_Message_Realloc)(struct upb_Message* msg, size_t need,
upb_Arena* a) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
const size_t overhead = sizeof(upb_Message_Internal);
upb_Message_Internal* in = UPB_PRIVATE(_upb_Message_GetInternal)(msg);
if (!in) {
// No internal data, allocate from scratch.
size_t size = UPB_MAX(128, upb_Log2CeilingSize(need + overhead));
in = upb_Arena_Malloc(a, size);
if (!in) return false;
in->size = size;
in->unknown_end = overhead;
in->ext_begin = size;
UPB_PRIVATE(_upb_Message_SetInternal)(msg, in);
} else if (in->ext_begin - in->unknown_end < need) {
// Internal data is too small, reallocate.
size_t new_size = upb_Log2CeilingSize(in->size + need);
size_t ext_bytes = in->size - in->ext_begin;
size_t new_ext_begin = new_size - ext_bytes;
in = upb_Arena_Realloc(a, in, in->size, new_size);
if (!in) return false;
if (ext_bytes) {
// Need to move extension data to the end.
char* ptr = (char*)in;
memmove(ptr + new_ext_begin, ptr + in->ext_begin, ext_bytes);
}
in->ext_begin = new_ext_begin;
in->size = new_size;
UPB_PRIVATE(_upb_Message_SetInternal)(msg, in);
}
UPB_ASSERT(in->ext_begin - in->unknown_end >= need);
return true;
}
#if UPB_TRACING_ENABLED
static void (*_message_trace_handler)(const upb_MiniTable*, const upb_Arena*);
void upb_Message_LogNewMessage(const upb_MiniTable* m, const upb_Arena* arena) {
if (_message_trace_handler) {
_message_trace_handler(m, arena);
}
}
void upb_Message_SetNewMessageTraceHandler(void (*handler)(const upb_MiniTable*,
const upb_Arena*)) {
_message_trace_handler = handler;
}
#endif // UPB_TRACING_ENABLED
#include <stddef.h>
// Must be last.
bool UPB_PRIVATE(_upb_Message_NextBaseField)(const upb_Message* msg,
const upb_MiniTable* m,
const upb_MiniTableField** out_f,
upb_MessageValue* out_v,
size_t* iter) {
const size_t count = upb_MiniTable_FieldCount(m);
size_t i = *iter;
while (++i < count) {
const upb_MiniTableField* f = upb_MiniTable_GetFieldByIndex(m, i);
const void* src = UPB_PRIVATE(_upb_Message_DataPtr)(msg, f);
upb_MessageValue val;
UPB_PRIVATE(_upb_MiniTableField_DataCopy)(f, &val, src);
// Skip field if unset or empty.
if (upb_MiniTableField_HasPresence(f)) {
if (!upb_Message_HasBaseField(msg, f)) continue;
} else {
if (UPB_PRIVATE(_upb_MiniTableField_DataIsZero)(f, src)) continue;
if (upb_MiniTableField_IsArray(f)) {
if (upb_Array_Size(val.array_val) == 0) continue;
} else if (upb_MiniTableField_IsMap(f)) {
if (upb_Map_Size(val.map_val) == 0) continue;
}
}
*out_f = f;
*out_v = val;
*iter = i;
return true;
}
return false;
}
bool UPB_PRIVATE(_upb_Message_NextExtension)(
const upb_Message* msg, const upb_MiniTable* m,
const upb_MiniTableExtension** out_e, upb_MessageValue* out_v,
size_t* iter) {
size_t count;
const upb_Extension* exts = UPB_PRIVATE(_upb_Message_Getexts)(msg, &count);
size_t i = *iter;
if (++i < count) {
*out_e = exts[i].ext;
*out_v = exts[i].data;
*iter = i;
return true;
}
return false;
}
const char _kUpb_ToBase92[] = {
' ', '!', '#', '$', '%', '&', '(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=',
'>', '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y',
'Z', '[', ']', '^', '_', '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', '{', '|', '}', '~',
};
const int8_t _kUpb_FromBase92[] = {
0, 1, -1, 2, 3, 4, 5, -1, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
55, 56, 57, -1, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72,
73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
};
#include <assert.h>
#include <stddef.h>
#include <stdint.h>
// Must be last.
typedef struct {
uint64_t present_values_mask;
uint32_t last_written_value;
} upb_MtDataEncoderInternal_EnumState;
typedef struct {
uint64_t msg_modifiers;
uint32_t last_field_num;
enum {
kUpb_OneofState_NotStarted,
kUpb_OneofState_StartedOneof,
kUpb_OneofState_EmittedOneofField,
} oneof_state;
} upb_MtDataEncoderInternal_MsgState;
typedef struct {
char* buf_start; // Only for checking kUpb_MtDataEncoder_MinSize.
union {
upb_MtDataEncoderInternal_EnumState enum_state;
upb_MtDataEncoderInternal_MsgState msg_state;
} state;
} upb_MtDataEncoderInternal;
static upb_MtDataEncoderInternal* upb_MtDataEncoder_GetInternal(
upb_MtDataEncoder* e, char* buf_start) {
UPB_ASSERT(sizeof(upb_MtDataEncoderInternal) <= sizeof(e->internal));
upb_MtDataEncoderInternal* ret = (upb_MtDataEncoderInternal*)e->internal;
ret->buf_start = buf_start;
return ret;
}
static char* upb_MtDataEncoder_PutRaw(upb_MtDataEncoder* e, char* ptr,
char ch) {
upb_MtDataEncoderInternal* in = (upb_MtDataEncoderInternal*)e->internal;
UPB_ASSERT(ptr - in->buf_start < kUpb_MtDataEncoder_MinSize);
if (ptr == e->end) return NULL;
*ptr++ = ch;
return ptr;
}
static char* upb_MtDataEncoder_Put(upb_MtDataEncoder* e, char* ptr, char ch) {
return upb_MtDataEncoder_PutRaw(e, ptr, _upb_ToBase92(ch));
}
static char* upb_MtDataEncoder_PutBase92Varint(upb_MtDataEncoder* e, char* ptr,
uint32_t val, int min, int max) {
int shift = upb_Log2Ceiling(_upb_FromBase92(max) - _upb_FromBase92(min) + 1);
UPB_ASSERT(shift <= 6);
uint32_t mask = (1 << shift) - 1;
do {
uint32_t bits = val & mask;
ptr = upb_MtDataEncoder_Put(e, ptr, bits + _upb_FromBase92(min));
if (!ptr) return NULL;
val >>= shift;
} while (val);
return ptr;
}
char* upb_MtDataEncoder_PutModifier(upb_MtDataEncoder* e, char* ptr,
uint64_t mod) {
if (mod) {
ptr = upb_MtDataEncoder_PutBase92Varint(e, ptr, mod,
kUpb_EncodedValue_MinModifier,
kUpb_EncodedValue_MaxModifier);
}
return ptr;
}
char* upb_MtDataEncoder_EncodeExtension(upb_MtDataEncoder* e, char* ptr,
upb_FieldType type, uint32_t field_num,
uint64_t field_mod) {
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
in->state.msg_state.msg_modifiers = 0;
in->state.msg_state.last_field_num = 0;
in->state.msg_state.oneof_state = kUpb_OneofState_NotStarted;
ptr = upb_MtDataEncoder_PutRaw(e, ptr, kUpb_EncodedVersion_ExtensionV1);
if (!ptr) return NULL;
return upb_MtDataEncoder_PutField(e, ptr, type, field_num, field_mod);
}
char* upb_MtDataEncoder_EncodeMap(upb_MtDataEncoder* e, char* ptr,
upb_FieldType key_type,
upb_FieldType value_type, uint64_t key_mod,
uint64_t value_mod) {
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
in->state.msg_state.msg_modifiers = 0;
in->state.msg_state.last_field_num = 0;
in->state.msg_state.oneof_state = kUpb_OneofState_NotStarted;
ptr = upb_MtDataEncoder_PutRaw(e, ptr, kUpb_EncodedVersion_MapV1);
if (!ptr) return NULL;
ptr = upb_MtDataEncoder_PutField(e, ptr, key_type, 1, key_mod);
if (!ptr) return NULL;
return upb_MtDataEncoder_PutField(e, ptr, value_type, 2, value_mod);
}
char* upb_MtDataEncoder_EncodeMessageSet(upb_MtDataEncoder* e, char* ptr) {
(void)upb_MtDataEncoder_GetInternal(e, ptr);
return upb_MtDataEncoder_PutRaw(e, ptr, kUpb_EncodedVersion_MessageSetV1);
}
char* upb_MtDataEncoder_StartMessage(upb_MtDataEncoder* e, char* ptr,
uint64_t msg_mod) {
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
in->state.msg_state.msg_modifiers = msg_mod;
in->state.msg_state.last_field_num = 0;
in->state.msg_state.oneof_state = kUpb_OneofState_NotStarted;
ptr = upb_MtDataEncoder_PutRaw(e, ptr, kUpb_EncodedVersion_MessageV1);
if (!ptr) return NULL;
return upb_MtDataEncoder_PutModifier(e, ptr, msg_mod);
}
static char* _upb_MtDataEncoder_MaybePutFieldSkip(upb_MtDataEncoder* e,
char* ptr,
uint32_t field_num) {
upb_MtDataEncoderInternal* in = (upb_MtDataEncoderInternal*)e->internal;
if (field_num <= in->state.msg_state.last_field_num) return NULL;
if (in->state.msg_state.last_field_num + 1 != field_num) {
// Put skip.
UPB_ASSERT(field_num > in->state.msg_state.last_field_num);
uint32_t skip = field_num - in->state.msg_state.last_field_num;
ptr = upb_MtDataEncoder_PutBase92Varint(
e, ptr, skip, kUpb_EncodedValue_MinSkip, kUpb_EncodedValue_MaxSkip);
if (!ptr) return NULL;
}
in->state.msg_state.last_field_num = field_num;
return ptr;
}
static char* _upb_MtDataEncoder_PutFieldType(upb_MtDataEncoder* e, char* ptr,
upb_FieldType type,
uint64_t field_mod) {
static const char kUpb_TypeToEncoded[] = {
[kUpb_FieldType_Double] = kUpb_EncodedType_Double,
[kUpb_FieldType_Float] = kUpb_EncodedType_Float,
[kUpb_FieldType_Int64] = kUpb_EncodedType_Int64,
[kUpb_FieldType_UInt64] = kUpb_EncodedType_UInt64,
[kUpb_FieldType_Int32] = kUpb_EncodedType_Int32,
[kUpb_FieldType_Fixed64] = kUpb_EncodedType_Fixed64,
[kUpb_FieldType_Fixed32] = kUpb_EncodedType_Fixed32,
[kUpb_FieldType_Bool] = kUpb_EncodedType_Bool,
[kUpb_FieldType_String] = kUpb_EncodedType_String,
[kUpb_FieldType_Group] = kUpb_EncodedType_Group,
[kUpb_FieldType_Message] = kUpb_EncodedType_Message,
[kUpb_FieldType_Bytes] = kUpb_EncodedType_Bytes,
[kUpb_FieldType_UInt32] = kUpb_EncodedType_UInt32,
[kUpb_FieldType_Enum] = kUpb_EncodedType_OpenEnum,
[kUpb_FieldType_SFixed32] = kUpb_EncodedType_SFixed32,
[kUpb_FieldType_SFixed64] = kUpb_EncodedType_SFixed64,
[kUpb_FieldType_SInt32] = kUpb_EncodedType_SInt32,
[kUpb_FieldType_SInt64] = kUpb_EncodedType_SInt64,
};
int encoded_type = kUpb_TypeToEncoded[type];
if (field_mod & kUpb_FieldModifier_IsClosedEnum) {
UPB_ASSERT(type == kUpb_FieldType_Enum);
encoded_type = kUpb_EncodedType_ClosedEnum;
}
if (field_mod & kUpb_FieldModifier_IsRepeated) {
// Repeated fields shift the type number up (unlike other modifiers which
// are bit flags).
encoded_type += kUpb_EncodedType_RepeatedBase;
}
return upb_MtDataEncoder_Put(e, ptr, encoded_type);
}
static char* _upb_MtDataEncoder_MaybePutModifiers(upb_MtDataEncoder* e,
char* ptr, upb_FieldType type,
uint64_t field_mod) {
upb_MtDataEncoderInternal* in = (upb_MtDataEncoderInternal*)e->internal;
uint32_t encoded_modifiers = 0;
if ((field_mod & kUpb_FieldModifier_IsRepeated) &&
upb_FieldType_IsPackable(type)) {
bool field_is_packed = field_mod & kUpb_FieldModifier_IsPacked;
bool default_is_packed = in->state.msg_state.msg_modifiers &
kUpb_MessageModifier_DefaultIsPacked;
if (field_is_packed != default_is_packed) {
encoded_modifiers |= kUpb_EncodedFieldModifier_FlipPacked;
}
}
if (type == kUpb_FieldType_String) {
bool field_validates_utf8 = field_mod & kUpb_FieldModifier_ValidateUtf8;
bool message_validates_utf8 =
in->state.msg_state.msg_modifiers & kUpb_MessageModifier_ValidateUtf8;
if (field_validates_utf8 != message_validates_utf8) {
// Old binaries do not recognize the field modifier. We need the failure
// mode to be too lax rather than too strict. Our caller should have
// handled this (see _upb_MessageDef_ValidateUtf8()).
assert(!message_validates_utf8);
encoded_modifiers |= kUpb_EncodedFieldModifier_FlipValidateUtf8;
}
}
if (field_mod & kUpb_FieldModifier_IsProto3Singular) {
encoded_modifiers |= kUpb_EncodedFieldModifier_IsProto3Singular;
}
if (field_mod & kUpb_FieldModifier_IsRequired) {
encoded_modifiers |= kUpb_EncodedFieldModifier_IsRequired;
}
return upb_MtDataEncoder_PutModifier(e, ptr, encoded_modifiers);
}
char* upb_MtDataEncoder_PutField(upb_MtDataEncoder* e, char* ptr,
upb_FieldType type, uint32_t field_num,
uint64_t field_mod) {
upb_MtDataEncoder_GetInternal(e, ptr);
ptr = _upb_MtDataEncoder_MaybePutFieldSkip(e, ptr, field_num);
if (!ptr) return NULL;
ptr = _upb_MtDataEncoder_PutFieldType(e, ptr, type, field_mod);
if (!ptr) return NULL;
return _upb_MtDataEncoder_MaybePutModifiers(e, ptr, type, field_mod);
}
char* upb_MtDataEncoder_StartOneof(upb_MtDataEncoder* e, char* ptr) {
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
if (in->state.msg_state.oneof_state == kUpb_OneofState_NotStarted) {
ptr = upb_MtDataEncoder_Put(e, ptr, _upb_FromBase92(kUpb_EncodedValue_End));
} else {
ptr = upb_MtDataEncoder_Put(
e, ptr, _upb_FromBase92(kUpb_EncodedValue_OneofSeparator));
}
in->state.msg_state.oneof_state = kUpb_OneofState_StartedOneof;
return ptr;
}
char* upb_MtDataEncoder_PutOneofField(upb_MtDataEncoder* e, char* ptr,
uint32_t field_num) {
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
if (in->state.msg_state.oneof_state == kUpb_OneofState_EmittedOneofField) {
ptr = upb_MtDataEncoder_Put(
e, ptr, _upb_FromBase92(kUpb_EncodedValue_FieldSeparator));
if (!ptr) return NULL;
}
ptr = upb_MtDataEncoder_PutBase92Varint(e, ptr, field_num, _upb_ToBase92(0),
_upb_ToBase92(63));
in->state.msg_state.oneof_state = kUpb_OneofState_EmittedOneofField;
return ptr;
}
char* upb_MtDataEncoder_StartEnum(upb_MtDataEncoder* e, char* ptr) {
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
in->state.enum_state.present_values_mask = 0;
in->state.enum_state.last_written_value = 0;
return upb_MtDataEncoder_PutRaw(e, ptr, kUpb_EncodedVersion_EnumV1);
}
static char* upb_MtDataEncoder_FlushDenseEnumMask(upb_MtDataEncoder* e,
char* ptr) {
upb_MtDataEncoderInternal* in = (upb_MtDataEncoderInternal*)e->internal;
ptr = upb_MtDataEncoder_Put(e, ptr, in->state.enum_state.present_values_mask);
in->state.enum_state.present_values_mask = 0;
in->state.enum_state.last_written_value += 5;
return ptr;
}
char* upb_MtDataEncoder_PutEnumValue(upb_MtDataEncoder* e, char* ptr,
uint32_t val) {
// TODO: optimize this encoding.
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
UPB_ASSERT(val >= in->state.enum_state.last_written_value);
uint32_t delta = val - in->state.enum_state.last_written_value;
if (delta >= 5 && in->state.enum_state.present_values_mask) {
ptr = upb_MtDataEncoder_FlushDenseEnumMask(e, ptr);
if (!ptr) {
return NULL;
}
delta -= 5;
}
if (delta >= 5) {
ptr = upb_MtDataEncoder_PutBase92Varint(
e, ptr, delta, kUpb_EncodedValue_MinSkip, kUpb_EncodedValue_MaxSkip);
in->state.enum_state.last_written_value += delta;
delta = 0;
}
UPB_ASSERT((in->state.enum_state.present_values_mask >> delta) == 0);
in->state.enum_state.present_values_mask |= 1ULL << delta;
return ptr;
}
char* upb_MtDataEncoder_EndEnum(upb_MtDataEncoder* e, char* ptr) {
upb_MtDataEncoderInternal* in = upb_MtDataEncoder_GetInternal(e, ptr);
if (!in->state.enum_state.present_values_mask) return ptr;
return upb_MtDataEncoder_FlushDenseEnumMask(e, ptr);
}
#include <stddef.h>
// Must be last.
// A MiniTable for an empty message, used for unlinked sub-messages that are
// built via MiniDescriptors. Messages that use this MiniTable may possibly
// be linked later, in which case this MiniTable will be replaced with a real
// one. This pattern is known as "dynamic tree shaking", and it introduces
// complication because sub-messages may either be the "empty" type or the
// "real" type. A tagged bit indicates the difference.
const struct upb_MiniTable UPB_PRIVATE(_kUpb_MiniTable_Empty) = {
.UPB_PRIVATE(subs) = NULL,
.UPB_PRIVATE(fields) = NULL,
.UPB_PRIVATE(size) = sizeof(struct upb_Message),
.UPB_PRIVATE(field_count) = 0,
.UPB_PRIVATE(ext) = kUpb_ExtMode_NonExtendable,
.UPB_PRIVATE(dense_below) = 0,
.UPB_PRIVATE(table_mask) = -1,
.UPB_PRIVATE(required_count) = 0,
};
// A MiniTable for a statically tree shaken message. Messages that use this
// MiniTable are guaranteed to remain unlinked; unlike the empty message, this
// MiniTable is never replaced, which greatly simplifies everything, because the
// type of a sub-message is always known, without consulting a tagged bit.
const struct upb_MiniTable UPB_PRIVATE(_kUpb_MiniTable_StaticallyTreeShaken) = {
.UPB_PRIVATE(subs) = NULL,
.UPB_PRIVATE(fields) = NULL,
.UPB_PRIVATE(size) = sizeof(struct upb_Message),
.UPB_PRIVATE(field_count) = 0,
.UPB_PRIVATE(ext) = kUpb_ExtMode_NonExtendable,
.UPB_PRIVATE(dense_below) = 0,
.UPB_PRIVATE(table_mask) = -1,
.UPB_PRIVATE(required_count) = 0,
};
// Must be last.
struct upb_DefPool {
upb_Arena* arena;
upb_strtable syms; // full_name -> packed def ptr
upb_strtable files; // file_name -> (upb_FileDef*)
upb_inttable exts; // (upb_MiniTableExtension*) -> (upb_FieldDef*)
upb_ExtensionRegistry* extreg;
const UPB_DESC(FeatureSetDefaults) * feature_set_defaults;
upb_MiniTablePlatform platform;
void* scratch_data;
size_t scratch_size;
size_t bytes_loaded;
};
void upb_DefPool_Free(upb_DefPool* s) {
upb_Arena_Free(s->arena);
upb_gfree(s->scratch_data);
upb_gfree(s);
}
static const char serialized_defaults[] = UPB_INTERNAL_UPB_EDITION_DEFAULTS;
upb_DefPool* upb_DefPool_New(void) {
upb_DefPool* s = upb_gmalloc(sizeof(*s));
if (!s) return NULL;
s->arena = upb_Arena_New();
s->bytes_loaded = 0;
s->scratch_size = 240;
s->scratch_data = upb_gmalloc(s->scratch_size);
if (!s->scratch_data) goto err;
if (!upb_strtable_init(&s->syms, 32, s->arena)) goto err;
if (!upb_strtable_init(&s->files, 4, s->arena)) goto err;
if (!upb_inttable_init(&s->exts, s->arena)) goto err;
s->extreg = upb_ExtensionRegistry_New(s->arena);
if (!s->extreg) goto err;
s->platform = kUpb_MiniTablePlatform_Native;
upb_Status status;
if (!upb_DefPool_SetFeatureSetDefaults(
s, serialized_defaults, sizeof(serialized_defaults) - 1, &status)) {
goto err;
}
if (!s->feature_set_defaults) goto err;
return s;
err:
upb_DefPool_Free(s);
return NULL;
}
const UPB_DESC(FeatureSetDefaults) *
upb_DefPool_FeatureSetDefaults(const upb_DefPool* s) {
return s->feature_set_defaults;
}
bool upb_DefPool_SetFeatureSetDefaults(upb_DefPool* s,
const char* serialized_defaults,
size_t serialized_len,
upb_Status* status) {
const UPB_DESC(FeatureSetDefaults)* defaults = UPB_DESC(
FeatureSetDefaults_parse)(serialized_defaults, serialized_len, s->arena);
if (!defaults) {
upb_Status_SetErrorFormat(status, "Failed to parse defaults");
return false;
}
if (upb_strtable_count(&s->files) > 0) {
upb_Status_SetErrorFormat(status,
"Feature set defaults can't be changed once the "
"pool has started building");
return false;
}
int min_edition = UPB_DESC(FeatureSetDefaults_minimum_edition(defaults));
int max_edition = UPB_DESC(FeatureSetDefaults_maximum_edition(defaults));
if (min_edition > max_edition) {
upb_Status_SetErrorFormat(status, "Invalid edition range %s to %s",
upb_FileDef_EditionName(min_edition),
upb_FileDef_EditionName(max_edition));
return false;
}
size_t size;
const UPB_DESC(
FeatureSetDefaults_FeatureSetEditionDefault)* const* default_list =
UPB_DESC(FeatureSetDefaults_defaults(defaults, &size));
int prev_edition = UPB_DESC(EDITION_UNKNOWN);
for (size_t i = 0; i < size; ++i) {
int edition = UPB_DESC(
FeatureSetDefaults_FeatureSetEditionDefault_edition(default_list[i]));
if (edition == UPB_DESC(EDITION_UNKNOWN)) {
upb_Status_SetErrorFormat(status, "Invalid edition UNKNOWN specified");
return false;
}
if (edition <= prev_edition) {
upb_Status_SetErrorFormat(status,
"Feature set defaults are not strictly "
"increasing, %s is greater than or equal to %s",
upb_FileDef_EditionName(prev_edition),
upb_FileDef_EditionName(edition));
return false;
}
prev_edition = edition;
}
// Copy the defaults into the pool.
s->feature_set_defaults = defaults;
return true;
}
bool _upb_DefPool_InsertExt(upb_DefPool* s, const upb_MiniTableExtension* ext,
const upb_FieldDef* f) {
return upb_inttable_insert(&s->exts, (uintptr_t)ext, upb_value_constptr(f),
s->arena);
}
bool _upb_DefPool_InsertSym(upb_DefPool* s, upb_StringView sym, upb_value v,
upb_Status* status) {
// TODO: table should support an operation "tryinsert" to avoid the double
// lookup.
if (upb_strtable_lookup2(&s->syms, sym.data, sym.size, NULL)) {
upb_Status_SetErrorFormat(status, "duplicate symbol '%s'", sym.data);
return false;
}
if (!upb_strtable_insert(&s->syms, sym.data, sym.size, v, s->arena)) {
upb_Status_SetErrorMessage(status, "out of memory");
return false;
}
return true;
}
static const void* _upb_DefPool_Unpack(const upb_DefPool* s, const char* sym,
size_t size, upb_deftype_t type) {
upb_value v;
return upb_strtable_lookup2(&s->syms, sym, size, &v)
? _upb_DefType_Unpack(v, type)
: NULL;
}
bool _upb_DefPool_LookupSym(const upb_DefPool* s, const char* sym, size_t size,
upb_value* v) {
return upb_strtable_lookup2(&s->syms, sym, size, v);
}
upb_ExtensionRegistry* _upb_DefPool_ExtReg(const upb_DefPool* s) {
return s->extreg;
}
void** _upb_DefPool_ScratchData(const upb_DefPool* s) {
return (void**)&s->scratch_data;
}
size_t* _upb_DefPool_ScratchSize(const upb_DefPool* s) {
return (size_t*)&s->scratch_size;
}
void _upb_DefPool_SetPlatform(upb_DefPool* s, upb_MiniTablePlatform platform) {
assert(upb_strtable_count(&s->files) == 0);
s->platform = platform;
}
const upb_MessageDef* upb_DefPool_FindMessageByName(const upb_DefPool* s,
const char* sym) {
return _upb_DefPool_Unpack(s, sym, strlen(sym), UPB_DEFTYPE_MSG);
}
const upb_MessageDef* upb_DefPool_FindMessageByNameWithSize(
const upb_DefPool* s, const char* sym, size_t len) {
return _upb_DefPool_Unpack(s, sym, len, UPB_DEFTYPE_MSG);
}
const upb_EnumDef* upb_DefPool_FindEnumByName(const upb_DefPool* s,
const char* sym) {
return _upb_DefPool_Unpack(s, sym, strlen(sym), UPB_DEFTYPE_ENUM);
}
const upb_EnumValueDef* upb_DefPool_FindEnumByNameval(const upb_DefPool* s,
const char* sym) {
return _upb_DefPool_Unpack(s, sym, strlen(sym), UPB_DEFTYPE_ENUMVAL);
}
const upb_FileDef* upb_DefPool_FindFileByName(const upb_DefPool* s,
const char* name) {
upb_value v;
return upb_strtable_lookup(&s->files, name, &v) ? upb_value_getconstptr(v)
: NULL;
}
const upb_FileDef* upb_DefPool_FindFileByNameWithSize(const upb_DefPool* s,
const char* name,
size_t len) {
upb_value v;
return upb_strtable_lookup2(&s->files, name, len, &v)
? upb_value_getconstptr(v)
: NULL;
}
const upb_FieldDef* upb_DefPool_FindExtensionByNameWithSize(
const upb_DefPool* s, const char* name, size_t size) {
upb_value v;
if (!upb_strtable_lookup2(&s->syms, name, size, &v)) return NULL;
switch (_upb_DefType_Type(v)) {
case UPB_DEFTYPE_FIELD:
return _upb_DefType_Unpack(v, UPB_DEFTYPE_FIELD);
case UPB_DEFTYPE_MSG: {
const upb_MessageDef* m = _upb_DefType_Unpack(v, UPB_DEFTYPE_MSG);
return _upb_MessageDef_InMessageSet(m)
? upb_MessageDef_NestedExtension(m, 0)
: NULL;
}
default:
break;
}
return NULL;
}
const upb_FieldDef* upb_DefPool_FindExtensionByName(const upb_DefPool* s,
const char* sym) {
return upb_DefPool_FindExtensionByNameWithSize(s, sym, strlen(sym));
}
const upb_ServiceDef* upb_DefPool_FindServiceByName(const upb_DefPool* s,
const char* name) {
return _upb_DefPool_Unpack(s, name, strlen(name), UPB_DEFTYPE_SERVICE);
}
const upb_ServiceDef* upb_DefPool_FindServiceByNameWithSize(
const upb_DefPool* s, const char* name, size_t size) {
return _upb_DefPool_Unpack(s, name, size, UPB_DEFTYPE_SERVICE);
}
const upb_FileDef* upb_DefPool_FindFileContainingSymbol(const upb_DefPool* s,
const char* name) {
upb_value v;
// TODO: non-extension fields and oneofs.
if (upb_strtable_lookup(&s->syms, name, &v)) {
switch (_upb_DefType_Type(v)) {
case UPB_DEFTYPE_EXT: {
const upb_FieldDef* f = _upb_DefType_Unpack(v, UPB_DEFTYPE_EXT);
return upb_FieldDef_File(f);
}
case UPB_DEFTYPE_MSG: {
const upb_MessageDef* m = _upb_DefType_Unpack(v, UPB_DEFTYPE_MSG);
return upb_MessageDef_File(m);
}
case UPB_DEFTYPE_ENUM: {
const upb_EnumDef* e = _upb_DefType_Unpack(v, UPB_DEFTYPE_ENUM);
return upb_EnumDef_File(e);
}
case UPB_DEFTYPE_ENUMVAL: {
const upb_EnumValueDef* ev =
_upb_DefType_Unpack(v, UPB_DEFTYPE_ENUMVAL);
return upb_EnumDef_File(upb_EnumValueDef_Enum(ev));
}
case UPB_DEFTYPE_SERVICE: {
const upb_ServiceDef* service =
_upb_DefType_Unpack(v, UPB_DEFTYPE_SERVICE);
return upb_ServiceDef_File(service);
}
default:
UPB_UNREACHABLE();
}
}
const char* last_dot = strrchr(name, '.');
if (last_dot) {
const upb_MessageDef* parent =
upb_DefPool_FindMessageByNameWithSize(s, name, last_dot - name);
if (parent) {
const char* shortname = last_dot + 1;
if (upb_MessageDef_FindByNameWithSize(parent, shortname,
strlen(shortname), NULL, NULL)) {
return upb_MessageDef_File(parent);
}
}
}
return NULL;
}
static void remove_filedef(upb_DefPool* s, upb_FileDef* file) {
intptr_t iter = UPB_INTTABLE_BEGIN;
upb_StringView key;
upb_value val;
while (upb_strtable_next2(&s->syms, &key, &val, &iter)) {
const upb_FileDef* f;
switch (_upb_DefType_Type(val)) {
case UPB_DEFTYPE_EXT:
f = upb_FieldDef_File(_upb_DefType_Unpack(val, UPB_DEFTYPE_EXT));
break;
case UPB_DEFTYPE_MSG:
f = upb_MessageDef_File(_upb_DefType_Unpack(val, UPB_DEFTYPE_MSG));
break;
case UPB_DEFTYPE_ENUM:
f = upb_EnumDef_File(_upb_DefType_Unpack(val, UPB_DEFTYPE_ENUM));
break;
case UPB_DEFTYPE_ENUMVAL:
f = upb_EnumDef_File(upb_EnumValueDef_Enum(
_upb_DefType_Unpack(val, UPB_DEFTYPE_ENUMVAL)));
break;
case UPB_DEFTYPE_SERVICE:
f = upb_ServiceDef_File(_upb_DefType_Unpack(val, UPB_DEFTYPE_SERVICE));
break;
default:
UPB_UNREACHABLE();
}
if (f == file) upb_strtable_removeiter(&s->syms, &iter);
}
}
static const upb_FileDef* upb_DefBuilder_AddFileToPool(
upb_DefBuilder* const builder, upb_DefPool* const s,
const UPB_DESC(FileDescriptorProto) * const file_proto,
const upb_StringView name, upb_Status* const status) {
if (UPB_SETJMP(builder->err) != 0) {
UPB_ASSERT(!upb_Status_IsOk(status));
if (builder->file) {
remove_filedef(s, builder->file);
builder->file = NULL;
}
} else if (!builder->arena || !builder->tmp_arena ||
!upb_strtable_init(&builder->feature_cache, 16,
builder->tmp_arena) ||
!(builder->legacy_features =
UPB_DESC(FeatureSet_new)(builder->tmp_arena))) {
_upb_DefBuilder_OomErr(builder);
} else {
_upb_FileDef_Create(builder, file_proto);
upb_strtable_insert(&s->files, name.data, name.size,
upb_value_constptr(builder->file), builder->arena);
UPB_ASSERT(upb_Status_IsOk(status));
upb_Arena_Fuse(s->arena, builder->arena);
}
if (builder->arena) upb_Arena_Free(builder->arena);
if (builder->tmp_arena) upb_Arena_Free(builder->tmp_arena);
return builder->file;
}
static const upb_FileDef* _upb_DefPool_AddFile(
upb_DefPool* s, const UPB_DESC(FileDescriptorProto) * file_proto,
const upb_MiniTableFile* layout, upb_Status* status) {
const upb_StringView name = UPB_DESC(FileDescriptorProto_name)(file_proto);
// Determine whether we already know about this file.
{
upb_value v;
if (upb_strtable_lookup2(&s->files, name.data, name.size, &v)) {
upb_Status_SetErrorFormat(status,
"duplicate file name " UPB_STRINGVIEW_FORMAT,
UPB_STRINGVIEW_ARGS(name));
return NULL;
}
}
upb_DefBuilder ctx = {
.symtab = s,
.tmp_buf = NULL,
.tmp_buf_size = 0,
.layout = layout,
.platform = s->platform,
.msg_count = 0,
.enum_count = 0,
.ext_count = 0,
.status = status,
.file = NULL,
.arena = upb_Arena_New(),
.tmp_arena = upb_Arena_New(),
};
return upb_DefBuilder_AddFileToPool(&ctx, s, file_proto, name, status);
}
const upb_FileDef* upb_DefPool_AddFile(upb_DefPool* s,
const UPB_DESC(FileDescriptorProto) *
file_proto,
upb_Status* status) {
return _upb_DefPool_AddFile(s, file_proto, NULL, status);
}
bool _upb_DefPool_LoadDefInitEx(upb_DefPool* s, const _upb_DefPool_Init* init,
bool rebuild_minitable) {
/* Since this function should never fail (it would indicate a bug in upb) we
* print errors to stderr instead of returning error status to the user. */
_upb_DefPool_Init** deps = init->deps;
UPB_DESC(FileDescriptorProto) * file;
upb_Arena* arena;
upb_Status status;
upb_Status_Clear(&status);
if (upb_DefPool_FindFileByName(s, init->filename)) {
return true;
}
arena = upb_Arena_New();
for (; *deps; deps++) {
if (!_upb_DefPool_LoadDefInitEx(s, *deps, rebuild_minitable)) goto err;
}
file = UPB_DESC(FileDescriptorProto_parse_ex)(
init->descriptor.data, init->descriptor.size, NULL,
kUpb_DecodeOption_AliasString, arena);
s->bytes_loaded += init->descriptor.size;
if (!file) {
upb_Status_SetErrorFormat(
&status,
"Failed to parse compiled-in descriptor for file '%s'. This should "
"never happen.",
init->filename);
goto err;
}
const upb_MiniTableFile* mt = rebuild_minitable ? NULL : init->layout;
if (!_upb_DefPool_AddFile(s, file, mt, &status)) {
goto err;
}
upb_Arena_Free(arena);
return true;
err:
fprintf(stderr,
"Error loading compiled-in descriptor for file '%s' (this should "
"never happen): %s\n",
init->filename, upb_Status_ErrorMessage(&status));
upb_Arena_Free(arena);
return false;
}
size_t _upb_DefPool_BytesLoaded(const upb_DefPool* s) {
return s->bytes_loaded;
}
upb_Arena* _upb_DefPool_Arena(const upb_DefPool* s) { return s->arena; }
const upb_FieldDef* upb_DefPool_FindExtensionByMiniTable(
const upb_DefPool* s, const upb_MiniTableExtension* ext) {
upb_value v;
bool ok = upb_inttable_lookup(&s->exts, (uintptr_t)ext, &v);
UPB_ASSERT(ok);
return upb_value_getconstptr(v);
}
const upb_FieldDef* upb_DefPool_FindExtensionByNumber(const upb_DefPool* s,
const upb_MessageDef* m,
int32_t fieldnum) {
const upb_MiniTable* t = upb_MessageDef_MiniTable(m);
const upb_MiniTableExtension* ext =
upb_ExtensionRegistry_Lookup(s->extreg, t, fieldnum);
return ext ? upb_DefPool_FindExtensionByMiniTable(s, ext) : NULL;
}
const upb_ExtensionRegistry* upb_DefPool_ExtensionRegistry(
const upb_DefPool* s) {
return s->extreg;
}
const upb_FieldDef** upb_DefPool_GetAllExtensions(const upb_DefPool* s,
const upb_MessageDef* m,
size_t* count) {
size_t n = 0;
intptr_t iter = UPB_INTTABLE_BEGIN;
uintptr_t key;
upb_value val;
// This is O(all exts) instead of O(exts for m). If we need this to be
// efficient we may need to make extreg into a two-level table, or have a
// second per-message index.
while (upb_inttable_next(&s->exts, &key, &val, &iter)) {
const upb_FieldDef* f = upb_value_getconstptr(val);
if (upb_FieldDef_ContainingType(f) == m) n++;
}
const upb_FieldDef** exts = upb_gmalloc(n * sizeof(*exts));
iter = UPB_INTTABLE_BEGIN;
size_t i = 0;
while (upb_inttable_next(&s->exts, &key, &val, &iter)) {
const upb_FieldDef* f = upb_value_getconstptr(val);
if (upb_FieldDef_ContainingType(f) == m) exts[i++] = f;
}
*count = n;
return exts;
}
bool _upb_DefPool_LoadDefInit(upb_DefPool* s, const _upb_DefPool_Init* init) {
return _upb_DefPool_LoadDefInitEx(s, init, false);
}
// Must be last.
upb_deftype_t _upb_DefType_Type(upb_value v) {
const uintptr_t num = (uintptr_t)upb_value_getconstptr(v);
return num & UPB_DEFTYPE_MASK;
}
upb_value _upb_DefType_Pack(const void* ptr, upb_deftype_t type) {
uintptr_t num = (uintptr_t)ptr;
UPB_ASSERT((num & UPB_DEFTYPE_MASK) == 0);
num |= type;
return upb_value_constptr((const void*)num);
}
const void* _upb_DefType_Unpack(upb_value v, upb_deftype_t type) {
uintptr_t num = (uintptr_t)upb_value_getconstptr(v);
return (num & UPB_DEFTYPE_MASK) == type
? (const void*)(num & ~UPB_DEFTYPE_MASK)
: NULL;
}
// Must be last.
bool _upb_DescState_Grow(upb_DescState* d, upb_Arena* a) {
const size_t oldbufsize = d->bufsize;
const int used = d->ptr - d->buf;
if (!d->buf) {
d->buf = upb_Arena_Malloc(a, d->bufsize);
if (!d->buf) return false;
d->ptr = d->buf;
d->e.end = d->buf + d->bufsize;
}
if (oldbufsize - used < kUpb_MtDataEncoder_MinSize) {
d->bufsize *= 2;
d->buf = upb_Arena_Realloc(a, d->buf, oldbufsize, d->bufsize);
if (!d->buf) return false;
d->ptr = d->buf + used;
d->e.end = d->buf + d->bufsize;
}
return true;
}
#include <stddef.h>
#include <stdint.h>
#include <string.h>
// Must be last.
struct upb_EnumDef {
const UPB_DESC(EnumOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
const upb_MiniTableEnum* layout; // Only for proto2.
const upb_FileDef* file;
const upb_MessageDef* containing_type; // Could be merged with "file".
const char* full_name;
upb_strtable ntoi;
upb_inttable iton;
const upb_EnumValueDef* values;
const upb_EnumReservedRange* res_ranges;
const upb_StringView* res_names;
int value_count;
int res_range_count;
int res_name_count;
int32_t defaultval;
bool is_sorted; // Whether all of the values are defined in ascending order.
#if UINTPTR_MAX == 0xffffffff
uint32_t padding; // Increase size to a multiple of 8.
#endif
};
upb_EnumDef* _upb_EnumDef_At(const upb_EnumDef* e, int i) {
return (upb_EnumDef*)&e[i];
}
const upb_MiniTableEnum* _upb_EnumDef_MiniTable(const upb_EnumDef* e) {
return e->layout;
}
bool _upb_EnumDef_Insert(upb_EnumDef* e, upb_EnumValueDef* v, upb_Arena* a) {
const char* name = upb_EnumValueDef_Name(v);
const upb_value val = upb_value_constptr(v);
bool ok = upb_strtable_insert(&e->ntoi, name, strlen(name), val, a);
if (!ok) return false;
// Multiple enumerators can have the same number, first one wins.
const int number = upb_EnumValueDef_Number(v);
if (!upb_inttable_lookup(&e->iton, number, NULL)) {
return upb_inttable_insert(&e->iton, number, val, a);
}
return true;
}
const UPB_DESC(EnumOptions) * upb_EnumDef_Options(const upb_EnumDef* e) {
return e->opts;
}
bool upb_EnumDef_HasOptions(const upb_EnumDef* e) {
return e->opts != (void*)kUpbDefOptDefault;
}
const UPB_DESC(FeatureSet) *
upb_EnumDef_ResolvedFeatures(const upb_EnumDef* e) {
return e->resolved_features;
}
const char* upb_EnumDef_FullName(const upb_EnumDef* e) { return e->full_name; }
const char* upb_EnumDef_Name(const upb_EnumDef* e) {
return _upb_DefBuilder_FullToShort(e->full_name);
}
const upb_FileDef* upb_EnumDef_File(const upb_EnumDef* e) { return e->file; }
const upb_MessageDef* upb_EnumDef_ContainingType(const upb_EnumDef* e) {
return e->containing_type;
}
int32_t upb_EnumDef_Default(const upb_EnumDef* e) {
UPB_ASSERT(upb_EnumDef_FindValueByNumber(e, e->defaultval));
return e->defaultval;
}
int upb_EnumDef_ReservedRangeCount(const upb_EnumDef* e) {
return e->res_range_count;
}
const upb_EnumReservedRange* upb_EnumDef_ReservedRange(const upb_EnumDef* e,
int i) {
UPB_ASSERT(0 <= i && i < e->res_range_count);
return _upb_EnumReservedRange_At(e->res_ranges, i);
}
int upb_EnumDef_ReservedNameCount(const upb_EnumDef* e) {
return e->res_name_count;
}
upb_StringView upb_EnumDef_ReservedName(const upb_EnumDef* e, int i) {
UPB_ASSERT(0 <= i && i < e->res_name_count);
return e->res_names[i];
}
int upb_EnumDef_ValueCount(const upb_EnumDef* e) { return e->value_count; }
const upb_EnumValueDef* upb_EnumDef_FindValueByName(const upb_EnumDef* e,
const char* name) {
return upb_EnumDef_FindValueByNameWithSize(e, name, strlen(name));
}
const upb_EnumValueDef* upb_EnumDef_FindValueByNameWithSize(
const upb_EnumDef* e, const char* name, size_t size) {
upb_value v;
return upb_strtable_lookup2(&e->ntoi, name, size, &v)
? upb_value_getconstptr(v)
: NULL;
}
const upb_EnumValueDef* upb_EnumDef_FindValueByNumber(const upb_EnumDef* e,
int32_t num) {
upb_value v;
return upb_inttable_lookup(&e->iton, num, &v) ? upb_value_getconstptr(v)
: NULL;
}
bool upb_EnumDef_CheckNumber(const upb_EnumDef* e, int32_t num) {
// We could use upb_EnumDef_FindValueByNumber(e, num) != NULL, but we expect
// this to be faster (especially for small numbers).
return upb_MiniTableEnum_CheckValue(e->layout, num);
}
const upb_EnumValueDef* upb_EnumDef_Value(const upb_EnumDef* e, int i) {
UPB_ASSERT(0 <= i && i < e->value_count);
return _upb_EnumValueDef_At(e->values, i);
}
bool upb_EnumDef_IsClosed(const upb_EnumDef* e) {
if (UPB_TREAT_CLOSED_ENUMS_LIKE_OPEN) return false;
return upb_EnumDef_IsSpecifiedAsClosed(e);
}
bool upb_EnumDef_IsSpecifiedAsClosed(const upb_EnumDef* e) {
return UPB_DESC(FeatureSet_enum_type)(e->resolved_features) ==
UPB_DESC(FeatureSet_CLOSED);
}
bool upb_EnumDef_MiniDescriptorEncode(const upb_EnumDef* e, upb_Arena* a,
upb_StringView* out) {
upb_DescState s;
_upb_DescState_Init(&s);
const upb_EnumValueDef** sorted = NULL;
if (!e->is_sorted) {
sorted = _upb_EnumValueDefs_Sorted(e->values, e->value_count, a);
if (!sorted) return false;
}
if (!_upb_DescState_Grow(&s, a)) return false;
s.ptr = upb_MtDataEncoder_StartEnum(&s.e, s.ptr);
// Duplicate values are allowed but we only encode each value once.
uint32_t previous = 0;
for (int i = 0; i < e->value_count; i++) {
const uint32_t current =
upb_EnumValueDef_Number(sorted ? sorted[i] : upb_EnumDef_Value(e, i));
if (i != 0 && previous == current) continue;
if (!_upb_DescState_Grow(&s, a)) return false;
s.ptr = upb_MtDataEncoder_PutEnumValue(&s.e, s.ptr, current);
previous = current;
}
if (!_upb_DescState_Grow(&s, a)) return false;
s.ptr = upb_MtDataEncoder_EndEnum(&s.e, s.ptr);
// There will always be room for this '\0' in the encoder buffer because
// kUpb_MtDataEncoder_MinSize is overkill for upb_MtDataEncoder_EndEnum().
UPB_ASSERT(s.ptr < s.buf + s.bufsize);
*s.ptr = '\0';
out->data = s.buf;
out->size = s.ptr - s.buf;
return true;
}
static upb_MiniTableEnum* create_enumlayout(upb_DefBuilder* ctx,
const upb_EnumDef* e) {
upb_StringView sv;
bool ok = upb_EnumDef_MiniDescriptorEncode(e, ctx->tmp_arena, &sv);
if (!ok) _upb_DefBuilder_Errf(ctx, "OOM while building enum MiniDescriptor");
upb_Status status;
upb_MiniTableEnum* layout =
upb_MiniTableEnum_Build(sv.data, sv.size, ctx->arena, &status);
if (!layout)
_upb_DefBuilder_Errf(ctx, "Error building enum MiniTable: %s", status.msg);
return layout;
}
static upb_StringView* _upb_EnumReservedNames_New(
upb_DefBuilder* ctx, int n, const upb_StringView* protos) {
upb_StringView* sv = _upb_DefBuilder_Alloc(ctx, sizeof(upb_StringView) * n);
for (int i = 0; i < n; i++) {
sv[i].data =
upb_strdup2(protos[i].data, protos[i].size, _upb_DefBuilder_Arena(ctx));
sv[i].size = protos[i].size;
}
return sv;
}
static void create_enumdef(upb_DefBuilder* ctx, const char* prefix,
const UPB_DESC(EnumDescriptorProto) * enum_proto,
const UPB_DESC(FeatureSet*) parent_features,
upb_EnumDef* e) {
const UPB_DESC(EnumValueDescriptorProto)* const* values;
const UPB_DESC(EnumDescriptorProto_EnumReservedRange)* const* res_ranges;
const upb_StringView* res_names;
upb_StringView name;
size_t n_value, n_res_range, n_res_name;
UPB_DEF_SET_OPTIONS(e->opts, EnumDescriptorProto, EnumOptions, enum_proto);
e->resolved_features = _upb_DefBuilder_ResolveFeatures(
ctx, parent_features, UPB_DESC(EnumOptions_features)(e->opts));
// Must happen before _upb_DefBuilder_Add()
e->file = _upb_DefBuilder_File(ctx);
name = UPB_DESC(EnumDescriptorProto_name)(enum_proto);
e->full_name = _upb_DefBuilder_MakeFullName(ctx, prefix, name);
_upb_DefBuilder_Add(ctx, e->full_name,
_upb_DefType_Pack(e, UPB_DEFTYPE_ENUM));
values = UPB_DESC(EnumDescriptorProto_value)(enum_proto, &n_value);
bool ok = upb_strtable_init(&e->ntoi, n_value, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
ok = upb_inttable_init(&e->iton, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
e->defaultval = 0;
e->value_count = n_value;
e->values = _upb_EnumValueDefs_New(ctx, prefix, n_value, values,
e->resolved_features, e, &e->is_sorted);
if (n_value == 0) {
_upb_DefBuilder_Errf(ctx, "enums must contain at least one value (%s)",
e->full_name);
}
res_ranges =
UPB_DESC(EnumDescriptorProto_reserved_range)(enum_proto, &n_res_range);
e->res_range_count = n_res_range;
e->res_ranges = _upb_EnumReservedRanges_New(ctx, n_res_range, res_ranges, e);
res_names =
UPB_DESC(EnumDescriptorProto_reserved_name)(enum_proto, &n_res_name);
e->res_name_count = n_res_name;
e->res_names = _upb_EnumReservedNames_New(ctx, n_res_name, res_names);
upb_inttable_compact(&e->iton, ctx->arena);
if (upb_EnumDef_IsClosed(e)) {
if (ctx->layout) {
e->layout = upb_MiniTableFile_Enum(ctx->layout, ctx->enum_count++);
} else {
e->layout = create_enumlayout(ctx, e);
}
} else {
e->layout = NULL;
}
}
upb_EnumDef* _upb_EnumDefs_New(upb_DefBuilder* ctx, int n,
const UPB_DESC(EnumDescriptorProto*)
const* protos,
const UPB_DESC(FeatureSet*) parent_features,
const upb_MessageDef* containing_type) {
_upb_DefType_CheckPadding(sizeof(upb_EnumDef));
// If a containing type is defined then get the full name from that.
// Otherwise use the package name from the file def.
const char* name = containing_type ? upb_MessageDef_FullName(containing_type)
: _upb_FileDef_RawPackage(ctx->file);
upb_EnumDef* e = _upb_DefBuilder_Alloc(ctx, sizeof(upb_EnumDef) * n);
for (int i = 0; i < n; i++) {
create_enumdef(ctx, name, protos[i], parent_features, &e[i]);
e[i].containing_type = containing_type;
}
return e;
}
// Must be last.
struct upb_EnumReservedRange {
int32_t start;
int32_t end;
};
upb_EnumReservedRange* _upb_EnumReservedRange_At(const upb_EnumReservedRange* r,
int i) {
return (upb_EnumReservedRange*)&r[i];
}
int32_t upb_EnumReservedRange_Start(const upb_EnumReservedRange* r) {
return r->start;
}
int32_t upb_EnumReservedRange_End(const upb_EnumReservedRange* r) {
return r->end;
}
upb_EnumReservedRange* _upb_EnumReservedRanges_New(
upb_DefBuilder* ctx, int n,
const UPB_DESC(EnumDescriptorProto_EnumReservedRange) * const* protos,
const upb_EnumDef* e) {
upb_EnumReservedRange* r =
_upb_DefBuilder_Alloc(ctx, sizeof(upb_EnumReservedRange) * n);
for (int i = 0; i < n; i++) {
const int32_t start =
UPB_DESC(EnumDescriptorProto_EnumReservedRange_start)(protos[i]);
const int32_t end =
UPB_DESC(EnumDescriptorProto_EnumReservedRange_end)(protos[i]);
// A full validation would also check that each range is disjoint, and that
// none of the fields overlap with the extension ranges, but we are just
// sanity checking here.
// Note: Not a typo! Unlike extension ranges and message reserved ranges,
// the end value of an enum reserved range is *inclusive*!
if (end < start) {
_upb_DefBuilder_Errf(ctx, "Reserved range (%d, %d) is invalid, enum=%s\n",
(int)start, (int)end, upb_EnumDef_FullName(e));
}
r[i].start = start;
r[i].end = end;
}
return r;
}
#include <stdint.h>
// Must be last.
struct upb_EnumValueDef {
const UPB_DESC(EnumValueOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
const upb_EnumDef* parent;
const char* full_name;
int32_t number;
#if UINTPTR_MAX == 0xffffffff
uint32_t padding; // Increase size to a multiple of 8.
#endif
};
upb_EnumValueDef* _upb_EnumValueDef_At(const upb_EnumValueDef* v, int i) {
return (upb_EnumValueDef*)&v[i];
}
static int _upb_EnumValueDef_Compare(const void* p1, const void* p2) {
const uint32_t v1 = (*(const upb_EnumValueDef**)p1)->number;
const uint32_t v2 = (*(const upb_EnumValueDef**)p2)->number;
return (v1 < v2) ? -1 : (v1 > v2);
}
const upb_EnumValueDef** _upb_EnumValueDefs_Sorted(const upb_EnumValueDef* v,
int n, upb_Arena* a) {
// TODO: Try to replace this arena alloc with a persistent scratch buffer.
upb_EnumValueDef** out =
(upb_EnumValueDef**)upb_Arena_Malloc(a, n * sizeof(void*));
if (!out) return NULL;
for (int i = 0; i < n; i++) {
out[i] = (upb_EnumValueDef*)&v[i];
}
qsort(out, n, sizeof(void*), _upb_EnumValueDef_Compare);
return (const upb_EnumValueDef**)out;
}
const UPB_DESC(EnumValueOptions) *
upb_EnumValueDef_Options(const upb_EnumValueDef* v) {
return v->opts;
}
bool upb_EnumValueDef_HasOptions(const upb_EnumValueDef* v) {
return v->opts != (void*)kUpbDefOptDefault;
}
const UPB_DESC(FeatureSet) *
upb_EnumValueDef_ResolvedFeatures(const upb_EnumValueDef* e) {
return e->resolved_features;
}
const upb_EnumDef* upb_EnumValueDef_Enum(const upb_EnumValueDef* v) {
return v->parent;
}
const char* upb_EnumValueDef_FullName(const upb_EnumValueDef* v) {
return v->full_name;
}
const char* upb_EnumValueDef_Name(const upb_EnumValueDef* v) {
return _upb_DefBuilder_FullToShort(v->full_name);
}
int32_t upb_EnumValueDef_Number(const upb_EnumValueDef* v) { return v->number; }
uint32_t upb_EnumValueDef_Index(const upb_EnumValueDef* v) {
// Compute index in our parent's array.
return v - upb_EnumDef_Value(v->parent, 0);
}
static void create_enumvaldef(upb_DefBuilder* ctx, const char* prefix,
const UPB_DESC(EnumValueDescriptorProto*)
val_proto,
const UPB_DESC(FeatureSet*) parent_features,
upb_EnumDef* e, upb_EnumValueDef* v) {
UPB_DEF_SET_OPTIONS(v->opts, EnumValueDescriptorProto, EnumValueOptions,
val_proto);
v->resolved_features = _upb_DefBuilder_ResolveFeatures(
ctx, parent_features, UPB_DESC(EnumValueOptions_features)(v->opts));
upb_StringView name = UPB_DESC(EnumValueDescriptorProto_name)(val_proto);
v->parent = e; // Must happen prior to _upb_DefBuilder_Add()
v->full_name = _upb_DefBuilder_MakeFullName(ctx, prefix, name);
v->number = UPB_DESC(EnumValueDescriptorProto_number)(val_proto);
_upb_DefBuilder_Add(ctx, v->full_name,
_upb_DefType_Pack(v, UPB_DEFTYPE_ENUMVAL));
bool ok = _upb_EnumDef_Insert(e, v, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
}
static void _upb_EnumValueDef_CheckZeroValue(upb_DefBuilder* ctx,
const upb_EnumDef* e,
const upb_EnumValueDef* v, int n) {
// When the special UPB_TREAT_CLOSED_ENUMS_LIKE_OPEN is enabled, we have to
// exempt closed enums from this check, even when we are treating them as
// open.
if (upb_EnumDef_IsSpecifiedAsClosed(e) || n == 0 || v[0].number == 0) return;
_upb_DefBuilder_Errf(ctx, "for open enums, the first value must be zero (%s)",
upb_EnumDef_FullName(e));
}
// Allocate and initialize an array of |n| enum value defs owned by |e|.
upb_EnumValueDef* _upb_EnumValueDefs_New(
upb_DefBuilder* ctx, const char* prefix, int n,
const UPB_DESC(EnumValueDescriptorProto*) const* protos,
const UPB_DESC(FeatureSet*) parent_features, upb_EnumDef* e,
bool* is_sorted) {
_upb_DefType_CheckPadding(sizeof(upb_EnumValueDef));
upb_EnumValueDef* v =
_upb_DefBuilder_Alloc(ctx, sizeof(upb_EnumValueDef) * n);
*is_sorted = true;
uint32_t previous = 0;
for (int i = 0; i < n; i++) {
create_enumvaldef(ctx, prefix, protos[i], parent_features, e, &v[i]);
const uint32_t current = v[i].number;
if (previous > current) *is_sorted = false;
previous = current;
}
_upb_EnumValueDef_CheckZeroValue(ctx, e, v, n);
return v;
}
#include <stdint.h>
// Must be last.
struct upb_ExtensionRange {
const UPB_DESC(ExtensionRangeOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
int32_t start;
int32_t end;
};
upb_ExtensionRange* _upb_ExtensionRange_At(const upb_ExtensionRange* r, int i) {
return (upb_ExtensionRange*)&r[i];
}
const UPB_DESC(ExtensionRangeOptions) *
upb_ExtensionRange_Options(const upb_ExtensionRange* r) {
return r->opts;
}
bool upb_ExtensionRange_HasOptions(const upb_ExtensionRange* r) {
return r->opts != (void*)kUpbDefOptDefault;
}
int32_t upb_ExtensionRange_Start(const upb_ExtensionRange* r) {
return r->start;
}
int32_t upb_ExtensionRange_End(const upb_ExtensionRange* r) { return r->end; }
upb_ExtensionRange* _upb_ExtensionRanges_New(
upb_DefBuilder* ctx, int n,
const UPB_DESC(DescriptorProto_ExtensionRange*) const* protos,
const UPB_DESC(FeatureSet*) parent_features, const upb_MessageDef* m) {
upb_ExtensionRange* r =
_upb_DefBuilder_Alloc(ctx, sizeof(upb_ExtensionRange) * n);
for (int i = 0; i < n; i++) {
UPB_DEF_SET_OPTIONS(r[i].opts, DescriptorProto_ExtensionRange,
ExtensionRangeOptions, protos[i]);
r[i].resolved_features = _upb_DefBuilder_ResolveFeatures(
ctx, parent_features,
UPB_DESC(ExtensionRangeOptions_features)(r[i].opts));
const int32_t start =
UPB_DESC(DescriptorProto_ExtensionRange_start)(protos[i]);
const int32_t end = UPB_DESC(DescriptorProto_ExtensionRange_end)(protos[i]);
const int32_t max = UPB_DESC(MessageOptions_message_set_wire_format)(
upb_MessageDef_Options(m))
? INT32_MAX
: kUpb_MaxFieldNumber + 1;
// A full validation would also check that each range is disjoint, and that
// none of the fields overlap with the extension ranges, but we are just
// sanity checking here.
if (start < 1 || end <= start || end > max) {
_upb_DefBuilder_Errf(ctx,
"Extension range (%d, %d) is invalid, message=%s\n",
(int)start, (int)end, upb_MessageDef_FullName(m));
}
r[i].start = start;
r[i].end = end;
}
return r;
}
#include <ctype.h>
#include <errno.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
// Must be last.
#define UPB_FIELD_TYPE_UNSPECIFIED 0
typedef struct {
size_t len;
char str[1]; // Null-terminated string data follows.
} str_t;
struct upb_FieldDef {
const UPB_DESC(FieldOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
const upb_FileDef* file;
const upb_MessageDef* msgdef;
const char* full_name;
const char* json_name;
union {
int64_t sint;
uint64_t uint;
double dbl;
float flt;
bool boolean;
str_t* str;
void* msg; // Always NULL.
} defaultval;
union {
const upb_OneofDef* oneof;
const upb_MessageDef* extension_scope;
} scope;
union {
const upb_MessageDef* msgdef;
const upb_EnumDef* enumdef;
const UPB_DESC(FieldDescriptorProto) * unresolved;
} sub;
uint32_t number_;
uint16_t index_;
uint16_t layout_index; // Index into msgdef->layout->fields or file->exts
bool has_default;
bool has_json_name;
bool has_presence;
bool is_extension;
bool is_proto3_optional;
upb_FieldType type_;
upb_Label label_;
};
upb_FieldDef* _upb_FieldDef_At(const upb_FieldDef* f, int i) {
return (upb_FieldDef*)&f[i];
}
const UPB_DESC(FieldOptions) * upb_FieldDef_Options(const upb_FieldDef* f) {
return f->opts;
}
bool upb_FieldDef_HasOptions(const upb_FieldDef* f) {
return f->opts != (void*)kUpbDefOptDefault;
}
const UPB_DESC(FeatureSet) *
upb_FieldDef_ResolvedFeatures(const upb_FieldDef* f) {
return f->resolved_features;
}
const char* upb_FieldDef_FullName(const upb_FieldDef* f) {
return f->full_name;
}
upb_CType upb_FieldDef_CType(const upb_FieldDef* f) {
return upb_FieldType_CType(f->type_);
}
upb_FieldType upb_FieldDef_Type(const upb_FieldDef* f) { return f->type_; }
uint32_t upb_FieldDef_Index(const upb_FieldDef* f) { return f->index_; }
uint32_t upb_FieldDef_LayoutIndex(const upb_FieldDef* f) {
return f->layout_index;
}
upb_Label upb_FieldDef_Label(const upb_FieldDef* f) { return f->label_; }
uint32_t upb_FieldDef_Number(const upb_FieldDef* f) { return f->number_; }
bool upb_FieldDef_IsExtension(const upb_FieldDef* f) { return f->is_extension; }
bool _upb_FieldDef_IsPackable(const upb_FieldDef* f) {
return upb_FieldDef_IsRepeated(f) && upb_FieldDef_IsPrimitive(f);
}
bool upb_FieldDef_IsPacked(const upb_FieldDef* f) {
return _upb_FieldDef_IsPackable(f) &&
UPB_DESC(FeatureSet_repeated_field_encoding(f->resolved_features)) ==
UPB_DESC(FeatureSet_PACKED);
}
const char* upb_FieldDef_Name(const upb_FieldDef* f) {
return _upb_DefBuilder_FullToShort(f->full_name);
}
const char* upb_FieldDef_JsonName(const upb_FieldDef* f) {
return f->json_name;
}
bool upb_FieldDef_HasJsonName(const upb_FieldDef* f) {
return f->has_json_name;
}
const upb_FileDef* upb_FieldDef_File(const upb_FieldDef* f) { return f->file; }
const upb_MessageDef* upb_FieldDef_ContainingType(const upb_FieldDef* f) {
return f->msgdef;
}
const upb_MessageDef* upb_FieldDef_ExtensionScope(const upb_FieldDef* f) {
return f->is_extension ? f->scope.extension_scope : NULL;
}
const upb_OneofDef* upb_FieldDef_ContainingOneof(const upb_FieldDef* f) {
return f->is_extension ? NULL : f->scope.oneof;
}
const upb_OneofDef* upb_FieldDef_RealContainingOneof(const upb_FieldDef* f) {
const upb_OneofDef* oneof = upb_FieldDef_ContainingOneof(f);
if (!oneof || upb_OneofDef_IsSynthetic(oneof)) return NULL;
return oneof;
}
upb_MessageValue upb_FieldDef_Default(const upb_FieldDef* f) {
upb_MessageValue ret;
if (upb_FieldDef_IsRepeated(f) || upb_FieldDef_IsSubMessage(f)) {
return (upb_MessageValue){.msg_val = NULL};
}
switch (upb_FieldDef_CType(f)) {
case kUpb_CType_Bool:
return (upb_MessageValue){.bool_val = f->defaultval.boolean};
case kUpb_CType_Int64:
return (upb_MessageValue){.int64_val = f->defaultval.sint};
case kUpb_CType_UInt64:
return (upb_MessageValue){.uint64_val = f->defaultval.uint};
case kUpb_CType_Enum:
case kUpb_CType_Int32:
return (upb_MessageValue){.int32_val = (int32_t)f->defaultval.sint};
case kUpb_CType_UInt32:
return (upb_MessageValue){.uint32_val = (uint32_t)f->defaultval.uint};
case kUpb_CType_Float:
return (upb_MessageValue){.float_val = f->defaultval.flt};
case kUpb_CType_Double:
return (upb_MessageValue){.double_val = f->defaultval.dbl};
case kUpb_CType_String:
case kUpb_CType_Bytes: {
str_t* str = f->defaultval.str;
if (str) {
return (upb_MessageValue){
.str_val = (upb_StringView){.data = str->str, .size = str->len}};
} else {
return (upb_MessageValue){
.str_val = (upb_StringView){.data = NULL, .size = 0}};
}
}
default:
UPB_UNREACHABLE();
}
return ret;
}
const upb_MessageDef* upb_FieldDef_MessageSubDef(const upb_FieldDef* f) {
return upb_FieldDef_IsSubMessage(f) ? f->sub.msgdef : NULL;
}
const upb_EnumDef* upb_FieldDef_EnumSubDef(const upb_FieldDef* f) {
return upb_FieldDef_IsEnum(f) ? f->sub.enumdef : NULL;
}
const upb_MiniTableField* upb_FieldDef_MiniTable(const upb_FieldDef* f) {
if (upb_FieldDef_IsExtension(f)) {
const upb_FileDef* file = upb_FieldDef_File(f);
return (upb_MiniTableField*)_upb_FileDef_ExtensionMiniTable(
file, f->layout_index);
} else {
const upb_MiniTable* layout = upb_MessageDef_MiniTable(f->msgdef);
return &layout->UPB_PRIVATE(fields)[f->layout_index];
}
}
const upb_MiniTableExtension* upb_FieldDef_MiniTableExtension(
const upb_FieldDef* f) {
UPB_ASSERT(upb_FieldDef_IsExtension(f));
const upb_FileDef* file = upb_FieldDef_File(f);
return _upb_FileDef_ExtensionMiniTable(file, f->layout_index);
}
bool _upb_FieldDef_IsClosedEnum(const upb_FieldDef* f) {
if (f->type_ != kUpb_FieldType_Enum) return false;
return upb_EnumDef_IsClosed(f->sub.enumdef);
}
bool _upb_FieldDef_IsProto3Optional(const upb_FieldDef* f) {
return f->is_proto3_optional;
}
int _upb_FieldDef_LayoutIndex(const upb_FieldDef* f) { return f->layout_index; }
bool _upb_FieldDef_ValidateUtf8(const upb_FieldDef* f) {
if (upb_FieldDef_Type(f) != kUpb_FieldType_String) return false;
return UPB_DESC(FeatureSet_utf8_validation(f->resolved_features)) ==
UPB_DESC(FeatureSet_VERIFY);
}
bool _upb_FieldDef_IsGroupLike(const upb_FieldDef* f) {
// Groups are always tag-delimited.
if (f->type_ != kUpb_FieldType_Group) {
return false;
}
const upb_MessageDef* msg = upb_FieldDef_MessageSubDef(f);
// Group fields always are always the lowercase type name.
const char* mname = upb_MessageDef_Name(msg);
const char* fname = upb_FieldDef_Name(f);
size_t name_size = strlen(fname);
if (name_size != strlen(mname)) return false;
for (size_t i = 0; i < name_size; ++i) {
if ((mname[i] | 0x20) != fname[i]) {
// Case-insensitive ascii comparison.
return false;
}
}
if (upb_MessageDef_File(msg) != upb_FieldDef_File(f)) {
return false;
}
// Group messages are always defined in the same scope as the field. File
// level extensions will compare NULL == NULL here, which is why the file
// comparison above is necessary to ensure both come from the same file.
return upb_FieldDef_IsExtension(f) ? upb_FieldDef_ExtensionScope(f) ==
upb_MessageDef_ContainingType(msg)
: upb_FieldDef_ContainingType(f) ==
upb_MessageDef_ContainingType(msg);
}
uint64_t _upb_FieldDef_Modifiers(const upb_FieldDef* f) {
uint64_t out = upb_FieldDef_IsPacked(f) ? kUpb_FieldModifier_IsPacked : 0;
if (upb_FieldDef_IsRepeated(f)) {
out |= kUpb_FieldModifier_IsRepeated;
} else if (upb_FieldDef_IsRequired(f)) {
out |= kUpb_FieldModifier_IsRequired;
} else if (!upb_FieldDef_HasPresence(f)) {
out |= kUpb_FieldModifier_IsProto3Singular;
}
if (_upb_FieldDef_IsClosedEnum(f)) {
out |= kUpb_FieldModifier_IsClosedEnum;
}
if (_upb_FieldDef_ValidateUtf8(f)) {
out |= kUpb_FieldModifier_ValidateUtf8;
}
return out;
}
bool upb_FieldDef_HasDefault(const upb_FieldDef* f) { return f->has_default; }
bool upb_FieldDef_HasPresence(const upb_FieldDef* f) { return f->has_presence; }
bool upb_FieldDef_HasSubDef(const upb_FieldDef* f) {
return upb_FieldDef_IsSubMessage(f) || upb_FieldDef_IsEnum(f);
}
bool upb_FieldDef_IsEnum(const upb_FieldDef* f) {
return upb_FieldDef_CType(f) == kUpb_CType_Enum;
}
bool upb_FieldDef_IsMap(const upb_FieldDef* f) {
return upb_FieldDef_IsRepeated(f) && upb_FieldDef_IsSubMessage(f) &&
upb_MessageDef_IsMapEntry(upb_FieldDef_MessageSubDef(f));
}
bool upb_FieldDef_IsOptional(const upb_FieldDef* f) {
return upb_FieldDef_Label(f) == kUpb_Label_Optional;
}
bool upb_FieldDef_IsPrimitive(const upb_FieldDef* f) {
return !upb_FieldDef_IsString(f) && !upb_FieldDef_IsSubMessage(f);
}
bool upb_FieldDef_IsRepeated(const upb_FieldDef* f) {
return upb_FieldDef_Label(f) == kUpb_Label_Repeated;
}
bool upb_FieldDef_IsRequired(const upb_FieldDef* f) {
return UPB_DESC(FeatureSet_field_presence)(f->resolved_features) ==
UPB_DESC(FeatureSet_LEGACY_REQUIRED);
}
bool upb_FieldDef_IsString(const upb_FieldDef* f) {
return upb_FieldDef_CType(f) == kUpb_CType_String ||
upb_FieldDef_CType(f) == kUpb_CType_Bytes;
}
bool upb_FieldDef_IsSubMessage(const upb_FieldDef* f) {
return upb_FieldDef_CType(f) == kUpb_CType_Message;
}
static bool between(int32_t x, int32_t low, int32_t high) {
return x >= low && x <= high;
}
bool upb_FieldDef_checklabel(int32_t label) { return between(label, 1, 3); }
bool upb_FieldDef_checktype(int32_t type) { return between(type, 1, 11); }
bool upb_FieldDef_checkintfmt(int32_t fmt) { return between(fmt, 1, 3); }
bool upb_FieldDef_checkdescriptortype(int32_t type) {
return between(type, 1, 18);
}
static bool streql2(const char* a, size_t n, const char* b) {
return n == strlen(b) && memcmp(a, b, n) == 0;
}
// Implement the transformation as described in the spec:
// 1. upper case all letters after an underscore.
// 2. remove all underscores.
static char* make_json_name(const char* name, size_t size, upb_Arena* a) {
char* out = upb_Arena_Malloc(a, size + 1); // +1 is to add a trailing '\0'
if (out == NULL) return NULL;
bool ucase_next = false;
char* des = out;
for (size_t i = 0; i < size; i++) {
if (name[i] == '_') {
ucase_next = true;
} else {
*des++ = ucase_next ? toupper(name[i]) : name[i];
ucase_next = false;
}
}
*des++ = '\0';
return out;
}
static str_t* newstr(upb_DefBuilder* ctx, const char* data, size_t len) {
str_t* ret = _upb_DefBuilder_Alloc(ctx, sizeof(*ret) + len);
if (!ret) _upb_DefBuilder_OomErr(ctx);
ret->len = len;
if (len) memcpy(ret->str, data, len);
ret->str[len] = '\0';
return ret;
}
static str_t* unescape(upb_DefBuilder* ctx, const upb_FieldDef* f,
const char* data, size_t len) {
// Size here is an upper bound; escape sequences could ultimately shrink it.
str_t* ret = _upb_DefBuilder_Alloc(ctx, sizeof(*ret) + len);
char* dst = &ret->str[0];
const char* src = data;
const char* end = data + len;
while (src < end) {
if (*src == '\\') {
src++;
*dst++ = _upb_DefBuilder_ParseEscape(ctx, f, &src, end);
} else {
*dst++ = *src++;
}
}
ret->len = dst - &ret->str[0];
return ret;
}
static void parse_default(upb_DefBuilder* ctx, const char* str, size_t len,
upb_FieldDef* f) {
char* end;
char nullz[64];
errno = 0;
switch (upb_FieldDef_CType(f)) {
case kUpb_CType_Int32:
case kUpb_CType_Int64:
case kUpb_CType_UInt32:
case kUpb_CType_UInt64:
case kUpb_CType_Double:
case kUpb_CType_Float:
// Standard C number parsing functions expect null-terminated strings.
if (len >= sizeof(nullz) - 1) {
_upb_DefBuilder_Errf(ctx, "Default too long: %.*s", (int)len, str);
}
memcpy(nullz, str, len);
nullz[len] = '\0';
str = nullz;
break;
default:
break;
}
switch (upb_FieldDef_CType(f)) {
case kUpb_CType_Int32: {
long val = strtol(str, &end, 0);
if (val > INT32_MAX || val < INT32_MIN || errno == ERANGE || *end) {
goto invalid;
}
f->defaultval.sint = val;
break;
}
case kUpb_CType_Enum: {
const upb_EnumDef* e = f->sub.enumdef;
const upb_EnumValueDef* ev =
upb_EnumDef_FindValueByNameWithSize(e, str, len);
if (!ev) {
goto invalid;
}
f->defaultval.sint = upb_EnumValueDef_Number(ev);
break;
}
case kUpb_CType_Int64: {
long long val = strtoll(str, &end, 0);
if (val > INT64_MAX || val < INT64_MIN || errno == ERANGE || *end) {
goto invalid;
}
f->defaultval.sint = val;
break;
}
case kUpb_CType_UInt32: {
unsigned long val = strtoul(str, &end, 0);
if (val > UINT32_MAX || errno == ERANGE || *end) {
goto invalid;
}
f->defaultval.uint = val;
break;
}
case kUpb_CType_UInt64: {
unsigned long long val = strtoull(str, &end, 0);
if (val > UINT64_MAX || errno == ERANGE || *end) {
goto invalid;
}
f->defaultval.uint = val;
break;
}
case kUpb_CType_Double: {
double val = strtod(str, &end);
if (errno == ERANGE || *end) {
goto invalid;
}
f->defaultval.dbl = val;
break;
}
case kUpb_CType_Float: {
float val = strtof(str, &end);
if (errno == ERANGE || *end) {
goto invalid;
}
f->defaultval.flt = val;
break;
}
case kUpb_CType_Bool: {
if (streql2(str, len, "false")) {
f->defaultval.boolean = false;
} else if (streql2(str, len, "true")) {
f->defaultval.boolean = true;
} else {
goto invalid;
}
break;
}
case kUpb_CType_String:
f->defaultval.str = newstr(ctx, str, len);
break;
case kUpb_CType_Bytes:
f->defaultval.str = unescape(ctx, f, str, len);
break;
case kUpb_CType_Message:
/* Should not have a default value. */
_upb_DefBuilder_Errf(ctx, "Message should not have a default (%s)",
upb_FieldDef_FullName(f));
}
return;
invalid:
_upb_DefBuilder_Errf(ctx, "Invalid default '%.*s' for field %s of type %d",
(int)len, str, upb_FieldDef_FullName(f),
(int)upb_FieldDef_Type(f));
}
static void set_default_default(upb_DefBuilder* ctx, upb_FieldDef* f) {
switch (upb_FieldDef_CType(f)) {
case kUpb_CType_Int32:
case kUpb_CType_Int64:
f->defaultval.sint = 0;
break;
case kUpb_CType_UInt64:
case kUpb_CType_UInt32:
f->defaultval.uint = 0;
break;
case kUpb_CType_Double:
case kUpb_CType_Float:
f->defaultval.dbl = 0;
break;
case kUpb_CType_String:
case kUpb_CType_Bytes:
f->defaultval.str = newstr(ctx, NULL, 0);
break;
case kUpb_CType_Bool:
f->defaultval.boolean = false;
break;
case kUpb_CType_Enum: {
const upb_EnumValueDef* v = upb_EnumDef_Value(f->sub.enumdef, 0);
f->defaultval.sint = upb_EnumValueDef_Number(v);
break;
}
case kUpb_CType_Message:
break;
}
}
static bool _upb_FieldDef_InferLegacyFeatures(
upb_DefBuilder* ctx, upb_FieldDef* f,
const UPB_DESC(FieldDescriptorProto*) proto,
const UPB_DESC(FieldOptions*) options, upb_Syntax syntax,
UPB_DESC(FeatureSet*) features) {
bool ret = false;
if (UPB_DESC(FieldDescriptorProto_label)(proto) == kUpb_Label_Required) {
if (syntax == kUpb_Syntax_Proto3) {
_upb_DefBuilder_Errf(ctx, "proto3 fields cannot be required (%s)",
f->full_name);
}
int val = UPB_DESC(FeatureSet_LEGACY_REQUIRED);
UPB_DESC(FeatureSet_set_field_presence(features, val));
ret = true;
}
if (UPB_DESC(FieldDescriptorProto_type)(proto) == kUpb_FieldType_Group) {
int val = UPB_DESC(FeatureSet_DELIMITED);
UPB_DESC(FeatureSet_set_message_encoding(features, val));
ret = true;
}
if (UPB_DESC(FieldOptions_has_packed)(options)) {
int val = UPB_DESC(FieldOptions_packed)(options)
? UPB_DESC(FeatureSet_PACKED)
: UPB_DESC(FeatureSet_EXPANDED);
UPB_DESC(FeatureSet_set_repeated_field_encoding(features, val));
ret = true;
}
return ret;
}
static void _upb_FieldDef_Create(upb_DefBuilder* ctx, const char* prefix,
const UPB_DESC(FeatureSet*) parent_features,
const UPB_DESC(FieldDescriptorProto*)
field_proto,
upb_MessageDef* m, upb_FieldDef* f) {
// Must happen before _upb_DefBuilder_Add()
f->file = _upb_DefBuilder_File(ctx);
const upb_StringView name = UPB_DESC(FieldDescriptorProto_name)(field_proto);
f->full_name = _upb_DefBuilder_MakeFullName(ctx, prefix, name);
f->number_ = UPB_DESC(FieldDescriptorProto_number)(field_proto);
f->is_proto3_optional =
UPB_DESC(FieldDescriptorProto_proto3_optional)(field_proto);
f->msgdef = m;
f->scope.oneof = NULL;
UPB_DEF_SET_OPTIONS(f->opts, FieldDescriptorProto, FieldOptions, field_proto);
upb_Syntax syntax = upb_FileDef_Syntax(f->file);
const UPB_DESC(FeatureSet*) unresolved_features =
UPB_DESC(FieldOptions_features)(f->opts);
bool implicit = false;
if (syntax != kUpb_Syntax_Editions) {
upb_Message_Clear(UPB_UPCAST(ctx->legacy_features),
UPB_DESC_MINITABLE(FeatureSet));
if (_upb_FieldDef_InferLegacyFeatures(ctx, f, field_proto, f->opts, syntax,
ctx->legacy_features)) {
implicit = true;
unresolved_features = ctx->legacy_features;
}
}
if (UPB_DESC(FieldDescriptorProto_has_oneof_index)(field_proto)) {
int oneof_index = UPB_DESC(FieldDescriptorProto_oneof_index)(field_proto);
if (!m) {
_upb_DefBuilder_Errf(ctx, "oneof field (%s) has no containing msg",
f->full_name);
}
if (oneof_index < 0 || oneof_index >= upb_MessageDef_OneofCount(m)) {
_upb_DefBuilder_Errf(ctx, "oneof_index out of range (%s)", f->full_name);
}
upb_OneofDef* oneof = (upb_OneofDef*)upb_MessageDef_Oneof(m, oneof_index);
f->scope.oneof = oneof;
parent_features = upb_OneofDef_ResolvedFeatures(oneof);
_upb_OneofDef_Insert(ctx, oneof, f, name.data, name.size);
}
f->resolved_features = _upb_DefBuilder_DoResolveFeatures(
ctx, parent_features, unresolved_features, implicit);
f->label_ = (int)UPB_DESC(FieldDescriptorProto_label)(field_proto);
if (f->label_ == kUpb_Label_Optional &&
// TODO: remove once we can deprecate kUpb_Label_Required.
UPB_DESC(FeatureSet_field_presence)(f->resolved_features) ==
UPB_DESC(FeatureSet_LEGACY_REQUIRED)) {
f->label_ = kUpb_Label_Required;
}
if (!UPB_DESC(FieldDescriptorProto_has_name)(field_proto)) {
_upb_DefBuilder_Errf(ctx, "field has no name");
}
f->has_json_name = UPB_DESC(FieldDescriptorProto_has_json_name)(field_proto);
if (f->has_json_name) {
const upb_StringView sv =
UPB_DESC(FieldDescriptorProto_json_name)(field_proto);
f->json_name = upb_strdup2(sv.data, sv.size, ctx->arena);
} else {
f->json_name = make_json_name(name.data, name.size, ctx->arena);
}
if (!f->json_name) _upb_DefBuilder_OomErr(ctx);
const bool has_type = UPB_DESC(FieldDescriptorProto_has_type)(field_proto);
const bool has_type_name =
UPB_DESC(FieldDescriptorProto_has_type_name)(field_proto);
f->type_ = (int)UPB_DESC(FieldDescriptorProto_type)(field_proto);
if (has_type) {
switch (f->type_) {
case kUpb_FieldType_Message:
case kUpb_FieldType_Group:
case kUpb_FieldType_Enum:
if (!has_type_name) {
_upb_DefBuilder_Errf(ctx, "field of type %d requires type name (%s)",
(int)f->type_, f->full_name);
}
break;
default:
if (has_type_name) {
_upb_DefBuilder_Errf(
ctx, "invalid type for field with type_name set (%s, %d)",
f->full_name, (int)f->type_);
}
}
}
if ((!has_type && has_type_name) || f->type_ == kUpb_FieldType_Message) {
f->type_ =
UPB_FIELD_TYPE_UNSPECIFIED; // We'll assign this in resolve_subdef()
} else {
if (f->type_ < kUpb_FieldType_Double || f->type_ > kUpb_FieldType_SInt64) {
_upb_DefBuilder_Errf(ctx, "invalid type for field %s (%d)", f->full_name,
f->type_);
}
}
if (f->label_ < kUpb_Label_Optional || f->label_ > kUpb_Label_Repeated) {
_upb_DefBuilder_Errf(ctx, "invalid label for field %s (%d)", f->full_name,
f->label_);
}
/* We can't resolve the subdef or (in the case of extensions) the containing
* message yet, because it may not have been defined yet. We stash a pointer
* to the field_proto until later when we can properly resolve it. */
f->sub.unresolved = field_proto;
if (UPB_DESC(FieldDescriptorProto_has_oneof_index)(field_proto)) {
if (upb_FieldDef_Label(f) != kUpb_Label_Optional) {
_upb_DefBuilder_Errf(ctx, "fields in oneof must have OPTIONAL label (%s)",
f->full_name);
}
}
f->has_presence =
(!upb_FieldDef_IsRepeated(f)) &&
(f->is_extension ||
(f->type_ == kUpb_FieldType_Message ||
f->type_ == kUpb_FieldType_Group || upb_FieldDef_ContainingOneof(f) ||
UPB_DESC(FeatureSet_field_presence)(f->resolved_features) !=
UPB_DESC(FeatureSet_IMPLICIT)));
}
static void _upb_FieldDef_CreateExt(upb_DefBuilder* ctx, const char* prefix,
const UPB_DESC(FeatureSet*) parent_features,
const UPB_DESC(FieldDescriptorProto*)
field_proto,
upb_MessageDef* m, upb_FieldDef* f) {
f->is_extension = true;
_upb_FieldDef_Create(ctx, prefix, parent_features, field_proto, m, f);
if (UPB_DESC(FieldDescriptorProto_has_oneof_index)(field_proto)) {
_upb_DefBuilder_Errf(ctx, "oneof_index provided for extension field (%s)",
f->full_name);
}
f->scope.extension_scope = m;
_upb_DefBuilder_Add(ctx, f->full_name, _upb_DefType_Pack(f, UPB_DEFTYPE_EXT));
f->layout_index = ctx->ext_count++;
if (ctx->layout) {
UPB_ASSERT(upb_MiniTableExtension_Number(
upb_FieldDef_MiniTableExtension(f)) == f->number_);
}
}
static void _upb_FieldDef_CreateNotExt(upb_DefBuilder* ctx, const char* prefix,
const UPB_DESC(FeatureSet*)
parent_features,
const UPB_DESC(FieldDescriptorProto*)
field_proto,
upb_MessageDef* m, upb_FieldDef* f) {
f->is_extension = false;
_upb_FieldDef_Create(ctx, prefix, parent_features, field_proto, m, f);
if (!UPB_DESC(FieldDescriptorProto_has_oneof_index)(field_proto)) {
if (f->is_proto3_optional) {
_upb_DefBuilder_Errf(
ctx,
"non-extension field (%s) with proto3_optional was not in a oneof",
f->full_name);
}
}
_upb_MessageDef_InsertField(ctx, m, f);
}
upb_FieldDef* _upb_Extensions_New(upb_DefBuilder* ctx, int n,
const UPB_DESC(FieldDescriptorProto*)
const* protos,
const UPB_DESC(FeatureSet*) parent_features,
const char* prefix, upb_MessageDef* m) {
_upb_DefType_CheckPadding(sizeof(upb_FieldDef));
upb_FieldDef* defs =
(upb_FieldDef*)_upb_DefBuilder_Alloc(ctx, sizeof(upb_FieldDef) * n);
for (int i = 0; i < n; i++) {
upb_FieldDef* f = &defs[i];
_upb_FieldDef_CreateExt(ctx, prefix, parent_features, protos[i], m, f);
f->index_ = i;
}
return defs;
}
upb_FieldDef* _upb_FieldDefs_New(upb_DefBuilder* ctx, int n,
const UPB_DESC(FieldDescriptorProto*)
const* protos,
const UPB_DESC(FeatureSet*) parent_features,
const char* prefix, upb_MessageDef* m,
bool* is_sorted) {
_upb_DefType_CheckPadding(sizeof(upb_FieldDef));
upb_FieldDef* defs =
(upb_FieldDef*)_upb_DefBuilder_Alloc(ctx, sizeof(upb_FieldDef) * n);
uint32_t previous = 0;
for (int i = 0; i < n; i++) {
upb_FieldDef* f = &defs[i];
_upb_FieldDef_CreateNotExt(ctx, prefix, parent_features, protos[i], m, f);
f->index_ = i;
if (!ctx->layout) {
// Speculate that the def fields are sorted. We will always sort the
// MiniTable fields, so if defs are sorted then indices will match.
//
// If this is incorrect, we will overwrite later.
f->layout_index = i;
}
const uint32_t current = f->number_;
if (previous > current) *is_sorted = false;
previous = current;
}
return defs;
}
static void resolve_subdef(upb_DefBuilder* ctx, const char* prefix,
upb_FieldDef* f) {
const UPB_DESC(FieldDescriptorProto)* field_proto = f->sub.unresolved;
upb_StringView name = UPB_DESC(FieldDescriptorProto_type_name)(field_proto);
bool has_name = UPB_DESC(FieldDescriptorProto_has_type_name)(field_proto);
switch ((int)f->type_) {
case UPB_FIELD_TYPE_UNSPECIFIED: {
// Type was not specified and must be inferred.
UPB_ASSERT(has_name);
upb_deftype_t type;
const void* def =
_upb_DefBuilder_ResolveAny(ctx, f->full_name, prefix, name, &type);
switch (type) {
case UPB_DEFTYPE_ENUM:
f->sub.enumdef = def;
f->type_ = kUpb_FieldType_Enum;
break;
case UPB_DEFTYPE_MSG:
f->sub.msgdef = def;
f->type_ = kUpb_FieldType_Message;
// TODO: remove once we can deprecate
// kUpb_FieldType_Group.
if (UPB_DESC(FeatureSet_message_encoding)(f->resolved_features) ==
UPB_DESC(FeatureSet_DELIMITED) &&
!upb_MessageDef_IsMapEntry(def) &&
!(f->msgdef && upb_MessageDef_IsMapEntry(f->msgdef))) {
f->type_ = kUpb_FieldType_Group;
}
f->has_presence = !upb_FieldDef_IsRepeated(f);
break;
default:
_upb_DefBuilder_Errf(ctx, "Couldn't resolve type name for field %s",
f->full_name);
}
break;
}
case kUpb_FieldType_Message:
case kUpb_FieldType_Group:
UPB_ASSERT(has_name);
f->sub.msgdef = _upb_DefBuilder_Resolve(ctx, f->full_name, prefix, name,
UPB_DEFTYPE_MSG);
break;
case kUpb_FieldType_Enum:
UPB_ASSERT(has_name);
f->sub.enumdef = _upb_DefBuilder_Resolve(ctx, f->full_name, prefix, name,
UPB_DEFTYPE_ENUM);
break;
default:
// No resolution necessary.
break;
}
}
static int _upb_FieldDef_Compare(const void* p1, const void* p2) {
const uint32_t v1 = (*(upb_FieldDef**)p1)->number_;
const uint32_t v2 = (*(upb_FieldDef**)p2)->number_;
return (v1 < v2) ? -1 : (v1 > v2);
}
// _upb_FieldDefs_Sorted() is mostly a pure function of its inputs, but has one
// critical side effect that we depend on: it sets layout_index appropriately
// for non-sorted lists of fields.
const upb_FieldDef** _upb_FieldDefs_Sorted(const upb_FieldDef* f, int n,
upb_Arena* a) {
// TODO: Replace this arena alloc with a persistent scratch buffer.
upb_FieldDef** out = (upb_FieldDef**)upb_Arena_Malloc(a, n * sizeof(void*));
if (!out) return NULL;
for (int i = 0; i < n; i++) {
out[i] = (upb_FieldDef*)&f[i];
}
qsort(out, n, sizeof(void*), _upb_FieldDef_Compare);
for (int i = 0; i < n; i++) {
out[i]->layout_index = i;
}
return (const upb_FieldDef**)out;
}
bool upb_FieldDef_MiniDescriptorEncode(const upb_FieldDef* f, upb_Arena* a,
upb_StringView* out) {
UPB_ASSERT(f->is_extension);
upb_DescState s;
_upb_DescState_Init(&s);
const int number = upb_FieldDef_Number(f);
const uint64_t modifiers = _upb_FieldDef_Modifiers(f);
if (!_upb_DescState_Grow(&s, a)) return false;
s.ptr = upb_MtDataEncoder_EncodeExtension(&s.e, s.ptr, f->type_, number,
modifiers);
*s.ptr = '\0';
out->data = s.buf;
out->size = s.ptr - s.buf;
return true;
}
static void resolve_extension(upb_DefBuilder* ctx, const char* prefix,
upb_FieldDef* f,
const UPB_DESC(FieldDescriptorProto) *
field_proto) {
if (!UPB_DESC(FieldDescriptorProto_has_extendee)(field_proto)) {
_upb_DefBuilder_Errf(ctx, "extension for field '%s' had no extendee",
f->full_name);
}
upb_StringView name = UPB_DESC(FieldDescriptorProto_extendee)(field_proto);
const upb_MessageDef* m =
_upb_DefBuilder_Resolve(ctx, f->full_name, prefix, name, UPB_DEFTYPE_MSG);
f->msgdef = m;
if (!_upb_MessageDef_IsValidExtensionNumber(m, f->number_)) {
_upb_DefBuilder_Errf(
ctx,
"field number %u in extension %s has no extension range in message %s",
(unsigned)f->number_, f->full_name, upb_MessageDef_FullName(m));
}
}
void _upb_FieldDef_BuildMiniTableExtension(upb_DefBuilder* ctx,
const upb_FieldDef* f) {
const upb_MiniTableExtension* ext = upb_FieldDef_MiniTableExtension(f);
if (ctx->layout) {
UPB_ASSERT(upb_FieldDef_Number(f) == upb_MiniTableExtension_Number(ext));
} else {
upb_StringView desc;
if (!upb_FieldDef_MiniDescriptorEncode(f, ctx->tmp_arena, &desc)) {
_upb_DefBuilder_OomErr(ctx);
}
upb_MiniTableExtension* mut_ext = (upb_MiniTableExtension*)ext;
upb_MiniTableSub sub = {NULL};
if (upb_FieldDef_IsSubMessage(f)) {
const upb_MiniTable* submsg = upb_MessageDef_MiniTable(f->sub.msgdef);
sub = upb_MiniTableSub_FromMessage(submsg);
} else if (_upb_FieldDef_IsClosedEnum(f)) {
const upb_MiniTableEnum* subenum = _upb_EnumDef_MiniTable(f->sub.enumdef);
sub = upb_MiniTableSub_FromEnum(subenum);
}
bool ok2 = _upb_MiniTableExtension_Init(desc.data, desc.size, mut_ext,
upb_MessageDef_MiniTable(f->msgdef),
sub, ctx->platform, ctx->status);
if (!ok2) _upb_DefBuilder_Errf(ctx, "Could not build extension mini table");
}
bool ok = _upb_DefPool_InsertExt(ctx->symtab, ext, f);
if (!ok) _upb_DefBuilder_OomErr(ctx);
}
static void resolve_default(upb_DefBuilder* ctx, upb_FieldDef* f,
const UPB_DESC(FieldDescriptorProto) *
field_proto) {
// Have to delay resolving of the default value until now because of the enum
// case, since enum defaults are specified with a label.
if (UPB_DESC(FieldDescriptorProto_has_default_value)(field_proto)) {
upb_StringView defaultval =
UPB_DESC(FieldDescriptorProto_default_value)(field_proto);
if (upb_FileDef_Syntax(f->file) == kUpb_Syntax_Proto3) {
_upb_DefBuilder_Errf(ctx,
"proto3 fields cannot have explicit defaults (%s)",
f->full_name);
}
if (upb_FieldDef_IsSubMessage(f)) {
_upb_DefBuilder_Errf(ctx,
"message fields cannot have explicit defaults (%s)",
f->full_name);
}
parse_default(ctx, defaultval.data, defaultval.size, f);
f->has_default = true;
} else {
set_default_default(ctx, f);
f->has_default = false;
}
}
void _upb_FieldDef_Resolve(upb_DefBuilder* ctx, const char* prefix,
upb_FieldDef* f) {
// We have to stash this away since resolve_subdef() may overwrite it.
const UPB_DESC(FieldDescriptorProto)* field_proto = f->sub.unresolved;
resolve_subdef(ctx, prefix, f);
resolve_default(ctx, f, field_proto);
if (f->is_extension) {
resolve_extension(ctx, prefix, f, field_proto);
}
}
#include <stddef.h>
#include <stdint.h>
#include <string.h>
// Must be last.
struct upb_FileDef {
const UPB_DESC(FileOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
const char* name;
const char* package;
UPB_DESC(Edition) edition;
const upb_FileDef** deps;
const int32_t* public_deps;
const int32_t* weak_deps;
const upb_MessageDef* top_lvl_msgs;
const upb_EnumDef* top_lvl_enums;
const upb_FieldDef* top_lvl_exts;
const upb_ServiceDef* services;
const upb_MiniTableExtension** ext_layouts;
const upb_DefPool* symtab;
int dep_count;
int public_dep_count;
int weak_dep_count;
int top_lvl_msg_count;
int top_lvl_enum_count;
int top_lvl_ext_count;
int service_count;
int ext_count; // All exts in the file.
upb_Syntax syntax;
};
UPB_API const char* upb_FileDef_EditionName(int edition) {
// TODO Synchronize this with descriptor.proto better.
switch (edition) {
case UPB_DESC(EDITION_PROTO2):
return "PROTO2";
case UPB_DESC(EDITION_PROTO3):
return "PROTO3";
case UPB_DESC(EDITION_2023):
return "2023";
default:
return "UNKNOWN";
}
}
const UPB_DESC(FileOptions) * upb_FileDef_Options(const upb_FileDef* f) {
return f->opts;
}
const UPB_DESC(FeatureSet) *
upb_FileDef_ResolvedFeatures(const upb_FileDef* f) {
return f->resolved_features;
}
bool upb_FileDef_HasOptions(const upb_FileDef* f) {
return f->opts != (void*)kUpbDefOptDefault;
}
const char* upb_FileDef_Name(const upb_FileDef* f) { return f->name; }
const char* upb_FileDef_Package(const upb_FileDef* f) {
return f->package ? f->package : "";
}
UPB_DESC(Edition) upb_FileDef_Edition(const upb_FileDef* f) {
return f->edition;
}
const char* _upb_FileDef_RawPackage(const upb_FileDef* f) { return f->package; }
upb_Syntax upb_FileDef_Syntax(const upb_FileDef* f) { return f->syntax; }
int upb_FileDef_TopLevelMessageCount(const upb_FileDef* f) {
return f->top_lvl_msg_count;
}
int upb_FileDef_DependencyCount(const upb_FileDef* f) { return f->dep_count; }
int upb_FileDef_PublicDependencyCount(const upb_FileDef* f) {
return f->public_dep_count;
}
int upb_FileDef_WeakDependencyCount(const upb_FileDef* f) {
return f->weak_dep_count;
}
const int32_t* _upb_FileDef_PublicDependencyIndexes(const upb_FileDef* f) {
return f->public_deps;
}
const int32_t* _upb_FileDef_WeakDependencyIndexes(const upb_FileDef* f) {
return f->weak_deps;
}
int upb_FileDef_TopLevelEnumCount(const upb_FileDef* f) {
return f->top_lvl_enum_count;
}
int upb_FileDef_TopLevelExtensionCount(const upb_FileDef* f) {
return f->top_lvl_ext_count;
}
int upb_FileDef_ServiceCount(const upb_FileDef* f) { return f->service_count; }
const upb_FileDef* upb_FileDef_Dependency(const upb_FileDef* f, int i) {
UPB_ASSERT(0 <= i && i < f->dep_count);
return f->deps[i];
}
const upb_FileDef* upb_FileDef_PublicDependency(const upb_FileDef* f, int i) {
UPB_ASSERT(0 <= i && i < f->public_dep_count);
return f->deps[f->public_deps[i]];
}
const upb_FileDef* upb_FileDef_WeakDependency(const upb_FileDef* f, int i) {
UPB_ASSERT(0 <= i && i < f->public_dep_count);
return f->deps[f->weak_deps[i]];
}
const upb_MessageDef* upb_FileDef_TopLevelMessage(const upb_FileDef* f, int i) {
UPB_ASSERT(0 <= i && i < f->top_lvl_msg_count);
return _upb_MessageDef_At(f->top_lvl_msgs, i);
}
const upb_EnumDef* upb_FileDef_TopLevelEnum(const upb_FileDef* f, int i) {
UPB_ASSERT(0 <= i && i < f->top_lvl_enum_count);
return _upb_EnumDef_At(f->top_lvl_enums, i);
}
const upb_FieldDef* upb_FileDef_TopLevelExtension(const upb_FileDef* f, int i) {
UPB_ASSERT(0 <= i && i < f->top_lvl_ext_count);
return _upb_FieldDef_At(f->top_lvl_exts, i);
}
const upb_ServiceDef* upb_FileDef_Service(const upb_FileDef* f, int i) {
UPB_ASSERT(0 <= i && i < f->service_count);
return _upb_ServiceDef_At(f->services, i);
}
const upb_DefPool* upb_FileDef_Pool(const upb_FileDef* f) { return f->symtab; }
const upb_MiniTableExtension* _upb_FileDef_ExtensionMiniTable(
const upb_FileDef* f, int i) {
return f->ext_layouts[i];
}
// Note: Import cycles are not allowed so this will terminate.
bool upb_FileDef_Resolves(const upb_FileDef* f, const char* path) {
if (!strcmp(f->name, path)) return true;
for (int i = 0; i < upb_FileDef_PublicDependencyCount(f); i++) {
const upb_FileDef* dep = upb_FileDef_PublicDependency(f, i);
if (upb_FileDef_Resolves(dep, path)) return true;
}
return false;
}
static char* strviewdup(upb_DefBuilder* ctx, upb_StringView view) {
char* ret = upb_strdup2(view.data, view.size, _upb_DefBuilder_Arena(ctx));
if (!ret) _upb_DefBuilder_OomErr(ctx);
return ret;
}
static bool streql_view(upb_StringView view, const char* b) {
return view.size == strlen(b) && memcmp(view.data, b, view.size) == 0;
}
static int count_exts_in_msg(const UPB_DESC(DescriptorProto) * msg_proto) {
size_t n;
UPB_DESC(DescriptorProto_extension)(msg_proto, &n);
int ext_count = n;
const UPB_DESC(DescriptorProto)* const* nested_msgs =
UPB_DESC(DescriptorProto_nested_type)(msg_proto, &n);
for (size_t i = 0; i < n; i++) {
ext_count += count_exts_in_msg(nested_msgs[i]);
}
return ext_count;
}
const UPB_DESC(FeatureSet*)
_upb_FileDef_FindEdition(upb_DefBuilder* ctx, int edition) {
const UPB_DESC(FeatureSetDefaults)* defaults =
upb_DefPool_FeatureSetDefaults(ctx->symtab);
int min = UPB_DESC(FeatureSetDefaults_minimum_edition)(defaults);
int max = UPB_DESC(FeatureSetDefaults_maximum_edition)(defaults);
if (edition < min) {
_upb_DefBuilder_Errf(ctx,
"Edition %s is earlier than the minimum edition %s "
"given in the defaults",
upb_FileDef_EditionName(edition),
upb_FileDef_EditionName(min));
return NULL;
}
if (edition > max) {
_upb_DefBuilder_Errf(ctx,
"Edition %s is later than the maximum edition %s "
"given in the defaults",
upb_FileDef_EditionName(edition),
upb_FileDef_EditionName(max));
return NULL;
}
size_t n;
const UPB_DESC(FeatureSetDefaults_FeatureSetEditionDefault)* const* d =
UPB_DESC(FeatureSetDefaults_defaults)(defaults, &n);
const UPB_DESC(FeatureSetDefaults_FeatureSetEditionDefault)* result = NULL;
for (size_t i = 0; i < n; i++) {
if (UPB_DESC(FeatureSetDefaults_FeatureSetEditionDefault_edition)(d[i]) >
edition) {
break;
}
result = d[i];
}
if (result == NULL) {
_upb_DefBuilder_Errf(ctx, "No valid default found for edition %s",
upb_FileDef_EditionName(edition));
return NULL;
}
// Merge the fixed and overridable features to get the edition's default
// feature set.
const UPB_DESC(FeatureSet)* fixed = UPB_DESC(
FeatureSetDefaults_FeatureSetEditionDefault_fixed_features)(result);
const UPB_DESC(FeatureSet)* overridable = UPB_DESC(
FeatureSetDefaults_FeatureSetEditionDefault_overridable_features)(result);
if (!fixed && !overridable) {
_upb_DefBuilder_Errf(ctx, "No valid default found for edition %s",
upb_FileDef_EditionName(edition));
return NULL;
} else if (!fixed) {
return overridable;
}
return _upb_DefBuilder_DoResolveFeatures(ctx, fixed, overridable,
/*is_implicit=*/true);
}
// Allocate and initialize one file def, and add it to the context object.
void _upb_FileDef_Create(upb_DefBuilder* ctx,
const UPB_DESC(FileDescriptorProto) * file_proto) {
upb_FileDef* file = _upb_DefBuilder_Alloc(ctx, sizeof(upb_FileDef));
ctx->file = file;
const UPB_DESC(DescriptorProto)* const* msgs;
const UPB_DESC(EnumDescriptorProto)* const* enums;
const UPB_DESC(FieldDescriptorProto)* const* exts;
const UPB_DESC(ServiceDescriptorProto)* const* services;
const upb_StringView* strs;
const int32_t* public_deps;
const int32_t* weak_deps;
size_t n;
file->symtab = ctx->symtab;
// Count all extensions in the file, to build a flat array of layouts.
UPB_DESC(FileDescriptorProto_extension)(file_proto, &n);
int ext_count = n;
msgs = UPB_DESC(FileDescriptorProto_message_type)(file_proto, &n);
for (size_t i = 0; i < n; i++) {
ext_count += count_exts_in_msg(msgs[i]);
}
file->ext_count = ext_count;
if (ctx->layout) {
// We are using the ext layouts that were passed in.
file->ext_layouts = ctx->layout->UPB_PRIVATE(exts);
const int mt_ext_count = upb_MiniTableFile_ExtensionCount(ctx->layout);
if (mt_ext_count != file->ext_count) {
_upb_DefBuilder_Errf(ctx,
"Extension count did not match layout (%d vs %d)",
mt_ext_count, file->ext_count);
}
} else {
// We are building ext layouts from scratch.
file->ext_layouts = _upb_DefBuilder_Alloc(
ctx, sizeof(*file->ext_layouts) * file->ext_count);
upb_MiniTableExtension* ext =
_upb_DefBuilder_Alloc(ctx, sizeof(*ext) * file->ext_count);
for (int i = 0; i < file->ext_count; i++) {
file->ext_layouts[i] = &ext[i];
}
}
upb_StringView name = UPB_DESC(FileDescriptorProto_name)(file_proto);
file->name = strviewdup(ctx, name);
if (strlen(file->name) != name.size) {
_upb_DefBuilder_Errf(ctx, "File name contained embedded NULL");
}
upb_StringView package = UPB_DESC(FileDescriptorProto_package)(file_proto);
if (package.size) {
_upb_DefBuilder_CheckIdentFull(ctx, package);
file->package = strviewdup(ctx, package);
} else {
file->package = NULL;
}
// TODO: How should we validate this?
file->edition = UPB_DESC(FileDescriptorProto_edition)(file_proto);
if (UPB_DESC(FileDescriptorProto_has_syntax)(file_proto)) {
upb_StringView syntax = UPB_DESC(FileDescriptorProto_syntax)(file_proto);
if (streql_view(syntax, "proto2")) {
file->syntax = kUpb_Syntax_Proto2;
file->edition = UPB_DESC(EDITION_PROTO2);
} else if (streql_view(syntax, "proto3")) {
file->syntax = kUpb_Syntax_Proto3;
file->edition = UPB_DESC(EDITION_PROTO3);
} else if (streql_view(syntax, "editions")) {
file->syntax = kUpb_Syntax_Editions;
file->edition = UPB_DESC(FileDescriptorProto_edition)(file_proto);
} else {
_upb_DefBuilder_Errf(ctx, "Invalid syntax '" UPB_STRINGVIEW_FORMAT "'",
UPB_STRINGVIEW_ARGS(syntax));
}
} else {
file->syntax = kUpb_Syntax_Proto2;
file->edition = UPB_DESC(EDITION_PROTO2);
}
// Read options.
UPB_DEF_SET_OPTIONS(file->opts, FileDescriptorProto, FileOptions, file_proto);
// Resolve features.
const UPB_DESC(FeatureSet*) edition_defaults =
_upb_FileDef_FindEdition(ctx, file->edition);
const UPB_DESC(FeatureSet*) unresolved =
UPB_DESC(FileOptions_features)(file->opts);
file->resolved_features =
_upb_DefBuilder_ResolveFeatures(ctx, edition_defaults, unresolved);
// Verify dependencies.
strs = UPB_DESC(FileDescriptorProto_dependency)(file_proto, &n);
file->dep_count = n;
file->deps = _upb_DefBuilder_Alloc(ctx, sizeof(*file->deps) * n);
for (size_t i = 0; i < n; i++) {
upb_StringView str = strs[i];
file->deps[i] =
upb_DefPool_FindFileByNameWithSize(ctx->symtab, str.data, str.size);
if (!file->deps[i]) {
_upb_DefBuilder_Errf(ctx,
"Depends on file '" UPB_STRINGVIEW_FORMAT
"', but it has not been loaded",
UPB_STRINGVIEW_ARGS(str));
}
}
public_deps = UPB_DESC(FileDescriptorProto_public_dependency)(file_proto, &n);
file->public_dep_count = n;
file->public_deps =
_upb_DefBuilder_Alloc(ctx, sizeof(*file->public_deps) * n);
int32_t* mutable_public_deps = (int32_t*)file->public_deps;
for (size_t i = 0; i < n; i++) {
if (public_deps[i] >= file->dep_count) {
_upb_DefBuilder_Errf(ctx, "public_dep %d is out of range",
(int)public_deps[i]);
}
mutable_public_deps[i] = public_deps[i];
}
weak_deps = UPB_DESC(FileDescriptorProto_weak_dependency)(file_proto, &n);
file->weak_dep_count = n;
file->weak_deps = _upb_DefBuilder_Alloc(ctx, sizeof(*file->weak_deps) * n);
int32_t* mutable_weak_deps = (int32_t*)file->weak_deps;
for (size_t i = 0; i < n; i++) {
if (weak_deps[i] >= file->dep_count) {
_upb_DefBuilder_Errf(ctx, "weak_dep %d is out of range",
(int)weak_deps[i]);
}
mutable_weak_deps[i] = weak_deps[i];
}
// Create enums.
enums = UPB_DESC(FileDescriptorProto_enum_type)(file_proto, &n);
file->top_lvl_enum_count = n;
file->top_lvl_enums =
_upb_EnumDefs_New(ctx, n, enums, file->resolved_features, NULL);
// Create extensions.
exts = UPB_DESC(FileDescriptorProto_extension)(file_proto, &n);
file->top_lvl_ext_count = n;
file->top_lvl_exts = _upb_Extensions_New(
ctx, n, exts, file->resolved_features, file->package, NULL);
// Create messages.
msgs = UPB_DESC(FileDescriptorProto_message_type)(file_proto, &n);
file->top_lvl_msg_count = n;
file->top_lvl_msgs =
_upb_MessageDefs_New(ctx, n, msgs, file->resolved_features, NULL);
// Create services.
services = UPB_DESC(FileDescriptorProto_service)(file_proto, &n);
file->service_count = n;
file->services =
_upb_ServiceDefs_New(ctx, n, services, file->resolved_features);
// Now that all names are in the table, build layouts and resolve refs.
for (int i = 0; i < file->top_lvl_msg_count; i++) {
upb_MessageDef* m = (upb_MessageDef*)upb_FileDef_TopLevelMessage(file, i);
_upb_MessageDef_Resolve(ctx, m);
}
for (int i = 0; i < file->top_lvl_ext_count; i++) {
upb_FieldDef* f = (upb_FieldDef*)upb_FileDef_TopLevelExtension(file, i);
_upb_FieldDef_Resolve(ctx, file->package, f);
}
for (int i = 0; i < file->top_lvl_msg_count; i++) {
upb_MessageDef* m = (upb_MessageDef*)upb_FileDef_TopLevelMessage(file, i);
_upb_MessageDef_CreateMiniTable(ctx, (upb_MessageDef*)m);
}
for (int i = 0; i < file->top_lvl_ext_count; i++) {
upb_FieldDef* f = (upb_FieldDef*)upb_FileDef_TopLevelExtension(file, i);
_upb_FieldDef_BuildMiniTableExtension(ctx, f);
}
for (int i = 0; i < file->top_lvl_msg_count; i++) {
upb_MessageDef* m = (upb_MessageDef*)upb_FileDef_TopLevelMessage(file, i);
_upb_MessageDef_LinkMiniTable(ctx, m);
}
if (file->ext_count) {
bool ok = upb_ExtensionRegistry_AddArray(
_upb_DefPool_ExtReg(ctx->symtab), file->ext_layouts, file->ext_count);
if (!ok) _upb_DefBuilder_OomErr(ctx);
}
}
#include <string.h>
// Must be last.
/* The upb core does not generally have a concept of default instances. However
* for descriptor options we make an exception since the max size is known and
* modest (<200 bytes). All types can share a default instance since it is
* initialized to zeroes.
*
* We have to allocate an extra pointer for upb's internal metadata. */
static UPB_ALIGN_AS(8) const
char opt_default_buf[_UPB_MAXOPT_SIZE + sizeof(void*)] = {0};
const char* kUpbDefOptDefault = &opt_default_buf[sizeof(void*)];
const char* _upb_DefBuilder_FullToShort(const char* fullname) {
const char* p;
if (fullname == NULL) {
return NULL;
} else if ((p = strrchr(fullname, '.')) == NULL) {
/* No '.' in the name, return the full string. */
return fullname;
} else {
/* Return one past the last '.'. */
return p + 1;
}
}
void _upb_DefBuilder_FailJmp(upb_DefBuilder* ctx) { UPB_LONGJMP(ctx->err, 1); }
void _upb_DefBuilder_Errf(upb_DefBuilder* ctx, const char* fmt, ...) {
va_list argp;
va_start(argp, fmt);
upb_Status_VSetErrorFormat(ctx->status, fmt, argp);
va_end(argp);
_upb_DefBuilder_FailJmp(ctx);
}
void _upb_DefBuilder_OomErr(upb_DefBuilder* ctx) {
upb_Status_SetErrorMessage(ctx->status, "out of memory");
_upb_DefBuilder_FailJmp(ctx);
}
// Verify a relative identifier string. The loop is branchless for speed.
static void _upb_DefBuilder_CheckIdentNotFull(upb_DefBuilder* ctx,
upb_StringView name) {
bool good = name.size > 0;
for (size_t i = 0; i < name.size; i++) {
const char c = name.data[i];
const char d = c | 0x20; // force lowercase
const bool is_alpha = (('a' <= d) & (d <= 'z')) | (c == '_');
const bool is_numer = ('0' <= c) & (c <= '9') & (i != 0);
good &= is_alpha | is_numer;
}
if (!good) _upb_DefBuilder_CheckIdentSlow(ctx, name, false);
}
const char* _upb_DefBuilder_MakeFullName(upb_DefBuilder* ctx,
const char* prefix,
upb_StringView name) {
_upb_DefBuilder_CheckIdentNotFull(ctx, name);
if (prefix) {
// ret = prefix + '.' + name;
size_t n = strlen(prefix);
char* ret = _upb_DefBuilder_Alloc(ctx, n + name.size + 2);
strcpy(ret, prefix);
ret[n] = '.';
memcpy(&ret[n + 1], name.data, name.size);
ret[n + 1 + name.size] = '\0';
return ret;
} else {
char* ret = upb_strdup2(name.data, name.size, ctx->arena);
if (!ret) _upb_DefBuilder_OomErr(ctx);
return ret;
}
}
static bool remove_component(char* base, size_t* len) {
if (*len == 0) return false;
for (size_t i = *len - 1; i > 0; i--) {
if (base[i] == '.') {
*len = i;
return true;
}
}
*len = 0;
return true;
}
const void* _upb_DefBuilder_ResolveAny(upb_DefBuilder* ctx,
const char* from_name_dbg,
const char* base, upb_StringView sym,
upb_deftype_t* type) {
if (sym.size == 0) goto notfound;
upb_value v;
if (sym.data[0] == '.') {
// Symbols starting with '.' are absolute, so we do a single lookup.
// Slice to omit the leading '.'
if (!_upb_DefPool_LookupSym(ctx->symtab, sym.data + 1, sym.size - 1, &v)) {
goto notfound;
}
} else {
// Remove components from base until we find an entry or run out.
size_t baselen = base ? strlen(base) : 0;
char* tmp = upb_gmalloc(sym.size + baselen + 1);
while (1) {
char* p = tmp;
if (baselen) {
memcpy(p, base, baselen);
p[baselen] = '.';
p += baselen + 1;
}
memcpy(p, sym.data, sym.size);
p += sym.size;
if (_upb_DefPool_LookupSym(ctx->symtab, tmp, p - tmp, &v)) {
break;
}
if (!remove_component(tmp, &baselen)) {
upb_gfree(tmp);
goto notfound;
}
}
upb_gfree(tmp);
}
*type = _upb_DefType_Type(v);
return _upb_DefType_Unpack(v, *type);
notfound:
_upb_DefBuilder_Errf(ctx, "couldn't resolve name '" UPB_STRINGVIEW_FORMAT "'",
UPB_STRINGVIEW_ARGS(sym));
}
const void* _upb_DefBuilder_Resolve(upb_DefBuilder* ctx,
const char* from_name_dbg, const char* base,
upb_StringView sym, upb_deftype_t type) {
upb_deftype_t found_type;
const void* ret =
_upb_DefBuilder_ResolveAny(ctx, from_name_dbg, base, sym, &found_type);
if (ret && found_type != type) {
_upb_DefBuilder_Errf(ctx,
"type mismatch when resolving %s: couldn't find "
"name " UPB_STRINGVIEW_FORMAT " with type=%d",
from_name_dbg, UPB_STRINGVIEW_ARGS(sym), (int)type);
}
return ret;
}
// Per ASCII this will lower-case a letter. If the result is a letter, the
// input was definitely a letter. If the output is not a letter, this may
// have transformed the character unpredictably.
static char upb_ascii_lower(char ch) { return ch | 0x20; }
// isalpha() etc. from <ctype.h> are locale-dependent, which we don't want.
static bool upb_isbetween(uint8_t c, uint8_t low, uint8_t high) {
return low <= c && c <= high;
}
static bool upb_isletter(char c) {
char lower = upb_ascii_lower(c);
return upb_isbetween(lower, 'a', 'z') || c == '_';
}
static bool upb_isalphanum(char c) {
return upb_isletter(c) || upb_isbetween(c, '0', '9');
}
static bool TryGetChar(const char** src, const char* end, char* ch) {
if (*src == end) return false;
*ch = **src;
*src += 1;
return true;
}
static int TryGetHexDigit(const char** src, const char* end) {
char ch;
if (!TryGetChar(src, end, &ch)) return -1;
if ('0' <= ch && ch <= '9') {
return ch - '0';
}
ch = upb_ascii_lower(ch);
if ('a' <= ch && ch <= 'f') {
return ch - 'a' + 0xa;
}
*src -= 1; // Char wasn't actually a hex digit.
return -1;
}
static char upb_DefBuilder_ParseHexEscape(upb_DefBuilder* ctx,
const upb_FieldDef* f,
const char** src, const char* end) {
int hex_digit = TryGetHexDigit(src, end);
if (hex_digit < 0) {
_upb_DefBuilder_Errf(
ctx, "\\x must be followed by at least one hex digit (field='%s')",
upb_FieldDef_FullName(f));
return 0;
}
unsigned int ret = hex_digit;
while ((hex_digit = TryGetHexDigit(src, end)) >= 0) {
ret = (ret << 4) | hex_digit;
}
if (ret > 0xff) {
_upb_DefBuilder_Errf(ctx, "Value of hex escape in field %s exceeds 8 bits",
upb_FieldDef_FullName(f));
return 0;
}
return ret;
}
static char TryGetOctalDigit(const char** src, const char* end) {
char ch;
if (!TryGetChar(src, end, &ch)) return -1;
if ('0' <= ch && ch <= '7') {
return ch - '0';
}
*src -= 1; // Char wasn't actually an octal digit.
return -1;
}
static char upb_DefBuilder_ParseOctalEscape(upb_DefBuilder* ctx,
const upb_FieldDef* f,
const char** src, const char* end) {
char ch = 0;
for (int i = 0; i < 3; i++) {
char digit;
if ((digit = TryGetOctalDigit(src, end)) >= 0) {
ch = (ch << 3) | digit;
}
}
return ch;
}
char _upb_DefBuilder_ParseEscape(upb_DefBuilder* ctx, const upb_FieldDef* f,
const char** src, const char* end) {
char ch;
if (!TryGetChar(src, end, &ch)) {
_upb_DefBuilder_Errf(ctx, "unterminated escape sequence in field %s",
upb_FieldDef_FullName(f));
return 0;
}
switch (ch) {
case 'a':
return '\a';
case 'b':
return '\b';
case 'f':
return '\f';
case 'n':
return '\n';
case 'r':
return '\r';
case 't':
return '\t';
case 'v':
return '\v';
case '\\':
return '\\';
case '\'':
return '\'';
case '\"':
return '\"';
case '?':
return '\?';
case 'x':
case 'X':
return upb_DefBuilder_ParseHexEscape(ctx, f, src, end);
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
*src -= 1;
return upb_DefBuilder_ParseOctalEscape(ctx, f, src, end);
}
_upb_DefBuilder_Errf(ctx, "Unknown escape sequence: \\%c", ch);
}
void _upb_DefBuilder_CheckIdentSlow(upb_DefBuilder* ctx, upb_StringView name,
bool full) {
const char* str = name.data;
const size_t len = name.size;
bool start = true;
for (size_t i = 0; i < len; i++) {
const char c = str[i];
if (c == '.') {
if (start || !full) {
_upb_DefBuilder_Errf(
ctx, "invalid name: unexpected '.' (" UPB_STRINGVIEW_FORMAT ")",
UPB_STRINGVIEW_ARGS(name));
}
start = true;
} else if (start) {
if (!upb_isletter(c)) {
_upb_DefBuilder_Errf(ctx,
"invalid name: path components must start with a "
"letter (" UPB_STRINGVIEW_FORMAT ")",
UPB_STRINGVIEW_ARGS(name));
}
start = false;
} else if (!upb_isalphanum(c)) {
_upb_DefBuilder_Errf(
ctx,
"invalid name: non-alphanumeric character (" UPB_STRINGVIEW_FORMAT
")",
UPB_STRINGVIEW_ARGS(name));
}
}
if (start) {
_upb_DefBuilder_Errf(ctx,
"invalid name: empty part (" UPB_STRINGVIEW_FORMAT ")",
UPB_STRINGVIEW_ARGS(name));
}
// We should never reach this point.
UPB_ASSERT(false);
}
upb_StringView _upb_DefBuilder_MakeKey(upb_DefBuilder* ctx,
const UPB_DESC(FeatureSet*) parent,
upb_StringView key) {
size_t need = key.size + sizeof(void*);
if (ctx->tmp_buf_size < need) {
ctx->tmp_buf_size = UPB_MAX(64, upb_Log2Ceiling(need));
ctx->tmp_buf = upb_Arena_Malloc(ctx->tmp_arena, ctx->tmp_buf_size);
if (!ctx->tmp_buf) _upb_DefBuilder_OomErr(ctx);
}
memcpy(ctx->tmp_buf, &parent, sizeof(void*));
memcpy(ctx->tmp_buf + sizeof(void*), key.data, key.size);
return upb_StringView_FromDataAndSize(ctx->tmp_buf, need);
}
bool _upb_DefBuilder_GetOrCreateFeatureSet(upb_DefBuilder* ctx,
const UPB_DESC(FeatureSet*) parent,
upb_StringView key,
UPB_DESC(FeatureSet**) set) {
upb_StringView k = _upb_DefBuilder_MakeKey(ctx, parent, key);
upb_value v;
if (upb_strtable_lookup2(&ctx->feature_cache, k.data, k.size, &v)) {
*set = upb_value_getptr(v);
return false;
}
*set = (UPB_DESC(FeatureSet*))upb_Message_DeepClone(
UPB_UPCAST(parent), UPB_DESC_MINITABLE(FeatureSet), ctx->arena);
if (!*set) _upb_DefBuilder_OomErr(ctx);
v = upb_value_ptr(*set);
if (!upb_strtable_insert(&ctx->feature_cache, k.data, k.size, v,
ctx->tmp_arena)) {
_upb_DefBuilder_OomErr(ctx);
}
return true;
}
const UPB_DESC(FeatureSet*)
_upb_DefBuilder_DoResolveFeatures(upb_DefBuilder* ctx,
const UPB_DESC(FeatureSet*) parent,
const UPB_DESC(FeatureSet*) child,
bool is_implicit) {
assert(parent);
if (!child) return parent;
if (child && !is_implicit &&
upb_FileDef_Syntax(ctx->file) != kUpb_Syntax_Editions) {
_upb_DefBuilder_Errf(ctx, "Features can only be specified for editions");
}
UPB_DESC(FeatureSet*) resolved;
size_t child_size;
const char* child_bytes =
UPB_DESC(FeatureSet_serialize)(child, ctx->tmp_arena, &child_size);
if (!child_bytes) _upb_DefBuilder_OomErr(ctx);
upb_StringView key = upb_StringView_FromDataAndSize(child_bytes, child_size);
if (!_upb_DefBuilder_GetOrCreateFeatureSet(ctx, parent, key, &resolved)) {
return resolved;
}
upb_DecodeStatus dec_status =
upb_Decode(child_bytes, child_size, UPB_UPCAST(resolved),
UPB_DESC_MINITABLE(FeatureSet), NULL, 0, ctx->arena);
if (dec_status != kUpb_DecodeStatus_Ok) _upb_DefBuilder_OomErr(ctx);
return resolved;
}
#include <string.h>
// Must be last.
char* upb_strdup2(const char* s, size_t len, upb_Arena* a) {
size_t n;
char* p;
// Prevent overflow errors.
if (len == SIZE_MAX) return NULL;
// Always null-terminate, even if binary data; but don't rely on the input to
// have a null-terminating byte since it may be a raw binary buffer.
n = len + 1;
p = upb_Arena_Malloc(a, n);
if (p) {
if (len != 0) memcpy(p, s, len);
p[len] = 0;
}
return p;
}
#include <stdint.h>
#include <string.h>
// Must be last.
bool upb_Message_HasFieldByDef(const upb_Message* msg, const upb_FieldDef* f) {
const upb_MiniTableField* m_f = upb_FieldDef_MiniTable(f);
UPB_ASSERT(upb_FieldDef_HasPresence(f));
if (upb_MiniTableField_IsExtension(m_f)) {
return upb_Message_HasExtension(msg, (const upb_MiniTableExtension*)m_f);
} else {
return upb_Message_HasBaseField(msg, m_f);
}
}
const upb_FieldDef* upb_Message_WhichOneofByDef(const upb_Message* msg,
const upb_OneofDef* o) {
const upb_FieldDef* f = upb_OneofDef_Field(o, 0);
if (upb_OneofDef_IsSynthetic(o)) {
UPB_ASSERT(upb_OneofDef_FieldCount(o) == 1);
return upb_Message_HasFieldByDef(msg, f) ? f : NULL;
} else {
const upb_MiniTableField* field = upb_FieldDef_MiniTable(f);
uint32_t oneof_case = upb_Message_WhichOneofFieldNumber(msg, field);
f = oneof_case ? upb_OneofDef_LookupNumber(o, oneof_case) : NULL;
UPB_ASSERT((f != NULL) == (oneof_case != 0));
return f;
}
}
upb_MessageValue upb_Message_GetFieldByDef(const upb_Message* msg,
const upb_FieldDef* f) {
upb_MessageValue default_val = upb_FieldDef_Default(f);
return upb_Message_GetField(msg, upb_FieldDef_MiniTable(f), default_val);
}
upb_MutableMessageValue upb_Message_Mutable(upb_Message* msg,
const upb_FieldDef* f,
upb_Arena* a) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
UPB_ASSERT(upb_FieldDef_IsSubMessage(f) || upb_FieldDef_IsRepeated(f));
if (upb_FieldDef_HasPresence(f) && !upb_Message_HasFieldByDef(msg, f)) {
// We need to skip the upb_Message_GetFieldByDef() call in this case.
goto make;
}
upb_MessageValue val = upb_Message_GetFieldByDef(msg, f);
if (val.array_val) {
return (upb_MutableMessageValue){.array = (upb_Array*)val.array_val};
}
upb_MutableMessageValue ret;
make:
if (!a) return (upb_MutableMessageValue){.array = NULL};
if (upb_FieldDef_IsMap(f)) {
const upb_MessageDef* entry = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key =
upb_MessageDef_FindFieldByNumber(entry, kUpb_MapEntry_KeyFieldNumber);
const upb_FieldDef* value =
upb_MessageDef_FindFieldByNumber(entry, kUpb_MapEntry_ValueFieldNumber);
ret.map =
upb_Map_New(a, upb_FieldDef_CType(key), upb_FieldDef_CType(value));
} else if (upb_FieldDef_IsRepeated(f)) {
ret.array = upb_Array_New(a, upb_FieldDef_CType(f));
} else {
UPB_ASSERT(upb_FieldDef_IsSubMessage(f));
const upb_MessageDef* m = upb_FieldDef_MessageSubDef(f);
ret.msg = upb_Message_New(upb_MessageDef_MiniTable(m), a);
}
val.array_val = ret.array;
upb_Message_SetFieldByDef(msg, f, val, a);
return ret;
}
bool upb_Message_SetFieldByDef(upb_Message* msg, const upb_FieldDef* f,
upb_MessageValue val, upb_Arena* a) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
const upb_MiniTableField* m_f = upb_FieldDef_MiniTable(f);
if (upb_MiniTableField_IsExtension(m_f)) {
return upb_Message_SetExtension(msg, (const upb_MiniTableExtension*)m_f,
&val, a);
} else {
upb_Message_SetBaseField(msg, m_f, &val);
return true;
}
}
void upb_Message_ClearFieldByDef(upb_Message* msg, const upb_FieldDef* f) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
const upb_MiniTableField* m_f = upb_FieldDef_MiniTable(f);
if (upb_MiniTableField_IsExtension(m_f)) {
upb_Message_ClearExtension(msg, (const upb_MiniTableExtension*)m_f);
} else {
upb_Message_ClearBaseField(msg, m_f);
}
}
void upb_Message_ClearByDef(upb_Message* msg, const upb_MessageDef* m) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
upb_Message_Clear(msg, upb_MessageDef_MiniTable(m));
}
bool upb_Message_Next(const upb_Message* msg, const upb_MessageDef* m,
const upb_DefPool* ext_pool, const upb_FieldDef** out_f,
upb_MessageValue* out_val, size_t* iter) {
const upb_MiniTable* mt = upb_MessageDef_MiniTable(m);
size_t i = *iter;
size_t n = upb_MiniTable_FieldCount(mt);
upb_MessageValue zero = upb_MessageValue_Zero();
UPB_UNUSED(ext_pool);
// Iterate over normal fields, returning the first one that is set.
while (++i < n) {
const upb_MiniTableField* field = upb_MiniTable_GetFieldByIndex(mt, i);
upb_MessageValue val = upb_Message_GetField(msg, field, zero);
// Skip field if unset or empty.
if (upb_MiniTableField_HasPresence(field)) {
if (!upb_Message_HasBaseField(msg, field)) continue;
} else {
switch (UPB_PRIVATE(_upb_MiniTableField_Mode)(field)) {
case kUpb_FieldMode_Map:
if (!val.map_val || upb_Map_Size(val.map_val) == 0) continue;
break;
case kUpb_FieldMode_Array:
if (!val.array_val || upb_Array_Size(val.array_val) == 0) continue;
break;
case kUpb_FieldMode_Scalar:
if (UPB_PRIVATE(_upb_MiniTableField_DataIsZero)(field, &val))
continue;
break;
}
}
*out_val = val;
*out_f =
upb_MessageDef_FindFieldByNumber(m, upb_MiniTableField_Number(field));
*iter = i;
return true;
}
if (ext_pool) {
// Return any extensions that are set.
size_t count;
const upb_Extension* ext = UPB_PRIVATE(_upb_Message_Getexts)(msg, &count);
if (i - n < count) {
ext += count - 1 - (i - n);
memcpy(out_val, &ext->data, sizeof(*out_val));
*out_f = upb_DefPool_FindExtensionByMiniTable(ext_pool, ext->ext);
*iter = i;
return true;
}
}
*iter = i;
return false;
}
bool _upb_Message_DiscardUnknown(upb_Message* msg, const upb_MessageDef* m,
int depth) {
UPB_ASSERT(!upb_Message_IsFrozen(msg));
size_t iter = kUpb_Message_Begin;
const upb_FieldDef* f;
upb_MessageValue val;
bool ret = true;
if (--depth == 0) return false;
_upb_Message_DiscardUnknown_shallow(msg);
while (upb_Message_Next(msg, m, NULL /*ext_pool*/, &f, &val, &iter)) {
const upb_MessageDef* subm = upb_FieldDef_MessageSubDef(f);
if (!subm) continue;
if (upb_FieldDef_IsMap(f)) {
const upb_FieldDef* val_f = upb_MessageDef_FindFieldByNumber(subm, 2);
const upb_MessageDef* val_m = upb_FieldDef_MessageSubDef(val_f);
upb_Map* map = (upb_Map*)val.map_val;
size_t iter = kUpb_Map_Begin;
if (!val_m) continue;
upb_MessageValue map_key, map_val;
while (upb_Map_Next(map, &map_key, &map_val, &iter)) {
if (!_upb_Message_DiscardUnknown((upb_Message*)map_val.msg_val, val_m,
depth)) {
ret = false;
}
}
} else if (upb_FieldDef_IsRepeated(f)) {
const upb_Array* arr = val.array_val;
size_t i, n = upb_Array_Size(arr);
for (i = 0; i < n; i++) {
upb_MessageValue elem = upb_Array_Get(arr, i);
if (!_upb_Message_DiscardUnknown((upb_Message*)elem.msg_val, subm,
depth)) {
ret = false;
}
}
} else {
if (!_upb_Message_DiscardUnknown((upb_Message*)val.msg_val, subm,
depth)) {
ret = false;
}
}
}
return ret;
}
bool upb_Message_DiscardUnknown(upb_Message* msg, const upb_MessageDef* m,
int maxdepth) {
return _upb_Message_DiscardUnknown(msg, m, maxdepth);
}
#include <stddef.h>
#include <stdint.h>
#include <string.h>
// Must be last.
struct upb_MessageDef {
const UPB_DESC(MessageOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
const upb_MiniTable* layout;
const upb_FileDef* file;
const upb_MessageDef* containing_type;
const char* full_name;
// Tables for looking up fields by number and name.
upb_inttable itof;
upb_strtable ntof;
// Looking up fields by json name.
upb_strtable jtof;
/* All nested defs.
* MEM: We could save some space here by putting nested defs in a contiguous
* region and calculating counts from offsets or vice-versa. */
const upb_FieldDef* fields;
const upb_OneofDef* oneofs;
const upb_ExtensionRange* ext_ranges;
const upb_StringView* res_names;
const upb_MessageDef* nested_msgs;
const upb_MessageReservedRange* res_ranges;
const upb_EnumDef* nested_enums;
const upb_FieldDef* nested_exts;
// TODO: These counters don't need anywhere near 32 bits.
int field_count;
int real_oneof_count;
int oneof_count;
int ext_range_count;
int res_range_count;
int res_name_count;
int nested_msg_count;
int nested_enum_count;
int nested_ext_count;
bool in_message_set;
bool is_sorted;
upb_WellKnown well_known_type;
#if UINTPTR_MAX == 0xffffffff
uint32_t padding; // Increase size to a multiple of 8.
#endif
};
static void assign_msg_wellknowntype(upb_MessageDef* m) {
const char* name = m->full_name;
if (name == NULL) {
m->well_known_type = kUpb_WellKnown_Unspecified;
return;
}
if (!strcmp(name, "google.protobuf.Any")) {
m->well_known_type = kUpb_WellKnown_Any;
} else if (!strcmp(name, "google.protobuf.FieldMask")) {
m->well_known_type = kUpb_WellKnown_FieldMask;
} else if (!strcmp(name, "google.protobuf.Duration")) {
m->well_known_type = kUpb_WellKnown_Duration;
} else if (!strcmp(name, "google.protobuf.Timestamp")) {
m->well_known_type = kUpb_WellKnown_Timestamp;
} else if (!strcmp(name, "google.protobuf.DoubleValue")) {
m->well_known_type = kUpb_WellKnown_DoubleValue;
} else if (!strcmp(name, "google.protobuf.FloatValue")) {
m->well_known_type = kUpb_WellKnown_FloatValue;
} else if (!strcmp(name, "google.protobuf.Int64Value")) {
m->well_known_type = kUpb_WellKnown_Int64Value;
} else if (!strcmp(name, "google.protobuf.UInt64Value")) {
m->well_known_type = kUpb_WellKnown_UInt64Value;
} else if (!strcmp(name, "google.protobuf.Int32Value")) {
m->well_known_type = kUpb_WellKnown_Int32Value;
} else if (!strcmp(name, "google.protobuf.UInt32Value")) {
m->well_known_type = kUpb_WellKnown_UInt32Value;
} else if (!strcmp(name, "google.protobuf.BoolValue")) {
m->well_known_type = kUpb_WellKnown_BoolValue;
} else if (!strcmp(name, "google.protobuf.StringValue")) {
m->well_known_type = kUpb_WellKnown_StringValue;
} else if (!strcmp(name, "google.protobuf.BytesValue")) {
m->well_known_type = kUpb_WellKnown_BytesValue;
} else if (!strcmp(name, "google.protobuf.Value")) {
m->well_known_type = kUpb_WellKnown_Value;
} else if (!strcmp(name, "google.protobuf.ListValue")) {
m->well_known_type = kUpb_WellKnown_ListValue;
} else if (!strcmp(name, "google.protobuf.Struct")) {
m->well_known_type = kUpb_WellKnown_Struct;
} else {
m->well_known_type = kUpb_WellKnown_Unspecified;
}
}
upb_MessageDef* _upb_MessageDef_At(const upb_MessageDef* m, int i) {
return (upb_MessageDef*)&m[i];
}
bool _upb_MessageDef_IsValidExtensionNumber(const upb_MessageDef* m, int n) {
for (int i = 0; i < m->ext_range_count; i++) {
const upb_ExtensionRange* r = upb_MessageDef_ExtensionRange(m, i);
if (upb_ExtensionRange_Start(r) <= n && n < upb_ExtensionRange_End(r)) {
return true;
}
}
return false;
}
const UPB_DESC(MessageOptions) *
upb_MessageDef_Options(const upb_MessageDef* m) {
return m->opts;
}
bool upb_MessageDef_HasOptions(const upb_MessageDef* m) {
return m->opts != (void*)kUpbDefOptDefault;
}
const UPB_DESC(FeatureSet) *
upb_MessageDef_ResolvedFeatures(const upb_MessageDef* m) {
return m->resolved_features;
}
const char* upb_MessageDef_FullName(const upb_MessageDef* m) {
return m->full_name;
}
const upb_FileDef* upb_MessageDef_File(const upb_MessageDef* m) {
return m->file;
}
const upb_MessageDef* upb_MessageDef_ContainingType(const upb_MessageDef* m) {
return m->containing_type;
}
const char* upb_MessageDef_Name(const upb_MessageDef* m) {
return _upb_DefBuilder_FullToShort(m->full_name);
}
upb_Syntax upb_MessageDef_Syntax(const upb_MessageDef* m) {
return upb_FileDef_Syntax(m->file);
}
const upb_FieldDef* upb_MessageDef_FindFieldByNumber(const upb_MessageDef* m,
uint32_t i) {
upb_value val;
return upb_inttable_lookup(&m->itof, i, &val) ? upb_value_getconstptr(val)
: NULL;
}
const upb_FieldDef* upb_MessageDef_FindFieldByNameWithSize(
const upb_MessageDef* m, const char* name, size_t size) {
upb_value val;
if (!upb_strtable_lookup2(&m->ntof, name, size, &val)) {
return NULL;
}
return _upb_DefType_Unpack(val, UPB_DEFTYPE_FIELD);
}
const upb_OneofDef* upb_MessageDef_FindOneofByNameWithSize(
const upb_MessageDef* m, const char* name, size_t size) {
upb_value val;
if (!upb_strtable_lookup2(&m->ntof, name, size, &val)) {
return NULL;
}
return _upb_DefType_Unpack(val, UPB_DEFTYPE_ONEOF);
}
bool _upb_MessageDef_Insert(upb_MessageDef* m, const char* name, size_t len,
upb_value v, upb_Arena* a) {
return upb_strtable_insert(&m->ntof, name, len, v, a);
}
bool upb_MessageDef_FindByNameWithSize(const upb_MessageDef* m,
const char* name, size_t len,
const upb_FieldDef** out_f,
const upb_OneofDef** out_o) {
upb_value val;
if (!upb_strtable_lookup2(&m->ntof, name, len, &val)) {
return false;
}
const upb_FieldDef* f = _upb_DefType_Unpack(val, UPB_DEFTYPE_FIELD);
const upb_OneofDef* o = _upb_DefType_Unpack(val, UPB_DEFTYPE_ONEOF);
if (out_f) *out_f = f;
if (out_o) *out_o = o;
return f || o; /* False if this was a JSON name. */
}
const upb_FieldDef* upb_MessageDef_FindByJsonNameWithSize(
const upb_MessageDef* m, const char* name, size_t size) {
upb_value val;
if (upb_strtable_lookup2(&m->jtof, name, size, &val)) {
return upb_value_getconstptr(val);
}
if (!upb_strtable_lookup2(&m->ntof, name, size, &val)) {
return NULL;
}
return _upb_DefType_Unpack(val, UPB_DEFTYPE_FIELD);
}
int upb_MessageDef_ExtensionRangeCount(const upb_MessageDef* m) {
return m->ext_range_count;
}
int upb_MessageDef_ReservedRangeCount(const upb_MessageDef* m) {
return m->res_range_count;
}
int upb_MessageDef_ReservedNameCount(const upb_MessageDef* m) {
return m->res_name_count;
}
int upb_MessageDef_FieldCount(const upb_MessageDef* m) {
return m->field_count;
}
int upb_MessageDef_OneofCount(const upb_MessageDef* m) {
return m->oneof_count;
}
int upb_MessageDef_RealOneofCount(const upb_MessageDef* m) {
return m->real_oneof_count;
}
int upb_MessageDef_NestedMessageCount(const upb_MessageDef* m) {
return m->nested_msg_count;
}
int upb_MessageDef_NestedEnumCount(const upb_MessageDef* m) {
return m->nested_enum_count;
}
int upb_MessageDef_NestedExtensionCount(const upb_MessageDef* m) {
return m->nested_ext_count;
}
const upb_MiniTable* upb_MessageDef_MiniTable(const upb_MessageDef* m) {
return m->layout;
}
const upb_ExtensionRange* upb_MessageDef_ExtensionRange(const upb_MessageDef* m,
int i) {
UPB_ASSERT(0 <= i && i < m->ext_range_count);
return _upb_ExtensionRange_At(m->ext_ranges, i);
}
const upb_MessageReservedRange* upb_MessageDef_ReservedRange(
const upb_MessageDef* m, int i) {
UPB_ASSERT(0 <= i && i < m->res_range_count);
return _upb_MessageReservedRange_At(m->res_ranges, i);
}
upb_StringView upb_MessageDef_ReservedName(const upb_MessageDef* m, int i) {
UPB_ASSERT(0 <= i && i < m->res_name_count);
return m->res_names[i];
}
const upb_FieldDef* upb_MessageDef_Field(const upb_MessageDef* m, int i) {
UPB_ASSERT(0 <= i && i < m->field_count);
return _upb_FieldDef_At(m->fields, i);
}
const upb_OneofDef* upb_MessageDef_Oneof(const upb_MessageDef* m, int i) {
UPB_ASSERT(0 <= i && i < m->oneof_count);
return _upb_OneofDef_At(m->oneofs, i);
}
const upb_MessageDef* upb_MessageDef_NestedMessage(const upb_MessageDef* m,
int i) {
UPB_ASSERT(0 <= i && i < m->nested_msg_count);
return &m->nested_msgs[i];
}
const upb_EnumDef* upb_MessageDef_NestedEnum(const upb_MessageDef* m, int i) {
UPB_ASSERT(0 <= i && i < m->nested_enum_count);
return _upb_EnumDef_At(m->nested_enums, i);
}
const upb_FieldDef* upb_MessageDef_NestedExtension(const upb_MessageDef* m,
int i) {
UPB_ASSERT(0 <= i && i < m->nested_ext_count);
return _upb_FieldDef_At(m->nested_exts, i);
}
upb_WellKnown upb_MessageDef_WellKnownType(const upb_MessageDef* m) {
return m->well_known_type;
}
bool _upb_MessageDef_InMessageSet(const upb_MessageDef* m) {
return m->in_message_set;
}
const upb_FieldDef* upb_MessageDef_FindFieldByName(const upb_MessageDef* m,
const char* name) {
return upb_MessageDef_FindFieldByNameWithSize(m, name, strlen(name));
}
const upb_OneofDef* upb_MessageDef_FindOneofByName(const upb_MessageDef* m,
const char* name) {
return upb_MessageDef_FindOneofByNameWithSize(m, name, strlen(name));
}
bool upb_MessageDef_IsMapEntry(const upb_MessageDef* m) {
return UPB_DESC(MessageOptions_map_entry)(m->opts);
}
bool upb_MessageDef_IsMessageSet(const upb_MessageDef* m) {
return UPB_DESC(MessageOptions_message_set_wire_format)(m->opts);
}
static upb_MiniTable* _upb_MessageDef_MakeMiniTable(upb_DefBuilder* ctx,
const upb_MessageDef* m) {
upb_StringView desc;
// Note: this will assign layout_index for fields, so upb_FieldDef_MiniTable()
// is safe to call only after this call.
bool ok = upb_MessageDef_MiniDescriptorEncode(m, ctx->tmp_arena, &desc);
if (!ok) _upb_DefBuilder_OomErr(ctx);
void** scratch_data = _upb_DefPool_ScratchData(ctx->symtab);
size_t* scratch_size = _upb_DefPool_ScratchSize(ctx->symtab);
upb_MiniTable* ret = upb_MiniTable_BuildWithBuf(
desc.data, desc.size, ctx->platform, ctx->arena, scratch_data,
scratch_size, ctx->status);
if (!ret) _upb_DefBuilder_FailJmp(ctx);
return ret;
}
void _upb_MessageDef_Resolve(upb_DefBuilder* ctx, upb_MessageDef* m) {
for (int i = 0; i < m->field_count; i++) {
upb_FieldDef* f = (upb_FieldDef*)upb_MessageDef_Field(m, i);
_upb_FieldDef_Resolve(ctx, m->full_name, f);
}
m->in_message_set = false;
for (int i = 0; i < upb_MessageDef_NestedExtensionCount(m); i++) {
upb_FieldDef* ext = (upb_FieldDef*)upb_MessageDef_NestedExtension(m, i);
_upb_FieldDef_Resolve(ctx, m->full_name, ext);
if (upb_FieldDef_Type(ext) == kUpb_FieldType_Message &&
upb_FieldDef_Label(ext) == kUpb_Label_Optional &&
upb_FieldDef_MessageSubDef(ext) == m &&
UPB_DESC(MessageOptions_message_set_wire_format)(
upb_MessageDef_Options(upb_FieldDef_ContainingType(ext)))) {
m->in_message_set = true;
}
}
for (int i = 0; i < upb_MessageDef_NestedMessageCount(m); i++) {
upb_MessageDef* n = (upb_MessageDef*)upb_MessageDef_NestedMessage(m, i);
_upb_MessageDef_Resolve(ctx, n);
}
}
void _upb_MessageDef_InsertField(upb_DefBuilder* ctx, upb_MessageDef* m,
const upb_FieldDef* f) {
const int32_t field_number = upb_FieldDef_Number(f);
if (field_number <= 0 || field_number > kUpb_MaxFieldNumber) {
_upb_DefBuilder_Errf(ctx, "invalid field number (%u)", field_number);
}
const char* json_name = upb_FieldDef_JsonName(f);
const char* shortname = upb_FieldDef_Name(f);
const size_t shortnamelen = strlen(shortname);
upb_value v = upb_value_constptr(f);
upb_value existing_v;
if (upb_strtable_lookup(&m->ntof, shortname, &existing_v)) {
_upb_DefBuilder_Errf(ctx, "duplicate field name (%s)", shortname);
}
const upb_value field_v = _upb_DefType_Pack(f, UPB_DEFTYPE_FIELD);
bool ok =
_upb_MessageDef_Insert(m, shortname, shortnamelen, field_v, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
bool skip_json_conflicts =
UPB_DESC(MessageOptions_deprecated_legacy_json_field_conflicts)(
upb_MessageDef_Options(m));
if (!skip_json_conflicts && strcmp(shortname, json_name) != 0 &&
UPB_DESC(FeatureSet_json_format)(m->resolved_features) ==
UPB_DESC(FeatureSet_ALLOW) &&
upb_strtable_lookup(&m->ntof, json_name, &v)) {
_upb_DefBuilder_Errf(
ctx, "duplicate json_name for (%s) with original field name (%s)",
shortname, json_name);
}
if (upb_strtable_lookup(&m->jtof, json_name, &v)) {
if (!skip_json_conflicts) {
_upb_DefBuilder_Errf(ctx, "duplicate json_name (%s)", json_name);
}
} else {
const size_t json_size = strlen(json_name);
ok = upb_strtable_insert(&m->jtof, json_name, json_size,
upb_value_constptr(f), ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
}
if (upb_inttable_lookup(&m->itof, field_number, NULL)) {
_upb_DefBuilder_Errf(ctx, "duplicate field number (%u)", field_number);
}
ok = upb_inttable_insert(&m->itof, field_number, v, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
}
void _upb_MessageDef_CreateMiniTable(upb_DefBuilder* ctx, upb_MessageDef* m) {
if (ctx->layout == NULL) {
m->layout = _upb_MessageDef_MakeMiniTable(ctx, m);
} else {
m->layout = upb_MiniTableFile_Message(ctx->layout, ctx->msg_count++);
UPB_ASSERT(m->field_count == upb_MiniTable_FieldCount(m->layout));
// We don't need the result of this call, but it will assign layout_index
// for all the fields in O(n lg n) time.
_upb_FieldDefs_Sorted(m->fields, m->field_count, ctx->tmp_arena);
}
for (int i = 0; i < m->nested_msg_count; i++) {
upb_MessageDef* nested =
(upb_MessageDef*)upb_MessageDef_NestedMessage(m, i);
_upb_MessageDef_CreateMiniTable(ctx, nested);
}
}
void _upb_MessageDef_LinkMiniTable(upb_DefBuilder* ctx,
const upb_MessageDef* m) {
for (int i = 0; i < upb_MessageDef_NestedExtensionCount(m); i++) {
const upb_FieldDef* ext = upb_MessageDef_NestedExtension(m, i);
_upb_FieldDef_BuildMiniTableExtension(ctx, ext);
}
for (int i = 0; i < m->nested_msg_count; i++) {
_upb_MessageDef_LinkMiniTable(ctx, upb_MessageDef_NestedMessage(m, i));
}
if (ctx->layout) return;
for (int i = 0; i < m->field_count; i++) {
const upb_FieldDef* f = upb_MessageDef_Field(m, i);
const upb_MessageDef* sub_m = upb_FieldDef_MessageSubDef(f);
const upb_EnumDef* sub_e = upb_FieldDef_EnumSubDef(f);
const int layout_index = _upb_FieldDef_LayoutIndex(f);
upb_MiniTable* mt = (upb_MiniTable*)upb_MessageDef_MiniTable(m);
UPB_ASSERT(layout_index < m->field_count);
upb_MiniTableField* mt_f =
(upb_MiniTableField*)&m->layout->UPB_PRIVATE(fields)[layout_index];
if (sub_m) {
if (!mt->UPB_PRIVATE(subs)) {
_upb_DefBuilder_Errf(ctx, "unexpected submsg for (%s)", m->full_name);
}
UPB_ASSERT(mt_f);
UPB_ASSERT(sub_m->layout);
if (UPB_UNLIKELY(!upb_MiniTable_SetSubMessage(mt, mt_f, sub_m->layout))) {
_upb_DefBuilder_Errf(ctx, "invalid submsg for (%s)", m->full_name);
}
} else if (_upb_FieldDef_IsClosedEnum(f)) {
const upb_MiniTableEnum* mt_e = _upb_EnumDef_MiniTable(sub_e);
if (UPB_UNLIKELY(!upb_MiniTable_SetSubEnum(mt, mt_f, mt_e))) {
_upb_DefBuilder_Errf(ctx, "invalid subenum for (%s)", m->full_name);
}
}
}
#ifndef NDEBUG
for (int i = 0; i < m->field_count; i++) {
const upb_FieldDef* f = upb_MessageDef_Field(m, i);
const int layout_index = _upb_FieldDef_LayoutIndex(f);
UPB_ASSERT(layout_index < upb_MiniTable_FieldCount(m->layout));
const upb_MiniTableField* mt_f =
&m->layout->UPB_PRIVATE(fields)[layout_index];
UPB_ASSERT(upb_FieldDef_Type(f) == upb_MiniTableField_Type(mt_f));
UPB_ASSERT(upb_FieldDef_CType(f) == upb_MiniTableField_CType(mt_f));
UPB_ASSERT(upb_FieldDef_HasPresence(f) ==
upb_MiniTableField_HasPresence(mt_f));
}
#endif
}
static bool _upb_MessageDef_ValidateUtf8(const upb_MessageDef* m) {
bool has_string = false;
for (int i = 0; i < m->field_count; i++) {
const upb_FieldDef* f = upb_MessageDef_Field(m, i);
// Old binaries do not recognize the field-level "FlipValidateUtf8" wire
// modifier, so we do not actually have field-level control for old
// binaries. Given this, we judge that the better failure mode is to be
// more lax than intended, rather than more strict. To achieve this, we
// only mark the message with the ValidateUtf8 modifier if *all* fields
// validate UTF-8.
if (!_upb_FieldDef_ValidateUtf8(f)) return false;
if (upb_FieldDef_Type(f) == kUpb_FieldType_String) has_string = true;
}
return has_string;
}
static uint64_t _upb_MessageDef_Modifiers(const upb_MessageDef* m) {
uint64_t out = 0;
if (UPB_DESC(FeatureSet_repeated_field_encoding(m->resolved_features)) ==
UPB_DESC(FeatureSet_PACKED)) {
out |= kUpb_MessageModifier_DefaultIsPacked;
}
if (_upb_MessageDef_ValidateUtf8(m)) {
out |= kUpb_MessageModifier_ValidateUtf8;
}
if (m->ext_range_count) {
out |= kUpb_MessageModifier_IsExtendable;
}
return out;
}
static bool _upb_MessageDef_EncodeMap(upb_DescState* s, const upb_MessageDef* m,
upb_Arena* a) {
if (m->field_count != 2) return false;
const upb_FieldDef* key_field = upb_MessageDef_Field(m, 0);
const upb_FieldDef* val_field = upb_MessageDef_Field(m, 1);
if (key_field == NULL || val_field == NULL) return false;
UPB_ASSERT(_upb_FieldDef_LayoutIndex(key_field) == 0);
UPB_ASSERT(_upb_FieldDef_LayoutIndex(val_field) == 1);
s->ptr = upb_MtDataEncoder_EncodeMap(
&s->e, s->ptr, upb_FieldDef_Type(key_field), upb_FieldDef_Type(val_field),
_upb_FieldDef_Modifiers(key_field), _upb_FieldDef_Modifiers(val_field));
return true;
}
static bool _upb_MessageDef_EncodeMessage(upb_DescState* s,
const upb_MessageDef* m,
upb_Arena* a) {
const upb_FieldDef** sorted = NULL;
if (!m->is_sorted) {
sorted = _upb_FieldDefs_Sorted(m->fields, m->field_count, a);
if (!sorted) return false;
}
s->ptr = upb_MtDataEncoder_StartMessage(&s->e, s->ptr,
_upb_MessageDef_Modifiers(m));
for (int i = 0; i < m->field_count; i++) {
const upb_FieldDef* f = sorted ? sorted[i] : upb_MessageDef_Field(m, i);
const upb_FieldType type = upb_FieldDef_Type(f);
const int number = upb_FieldDef_Number(f);
const uint64_t modifiers = _upb_FieldDef_Modifiers(f);
if (!_upb_DescState_Grow(s, a)) return false;
s->ptr = upb_MtDataEncoder_PutField(&s->e, s->ptr, type, number, modifiers);
}
for (int i = 0; i < m->real_oneof_count; i++) {
if (!_upb_DescState_Grow(s, a)) return false;
s->ptr = upb_MtDataEncoder_StartOneof(&s->e, s->ptr);
const upb_OneofDef* o = upb_MessageDef_Oneof(m, i);
const int field_count = upb_OneofDef_FieldCount(o);
for (int j = 0; j < field_count; j++) {
const int number = upb_FieldDef_Number(upb_OneofDef_Field(o, j));
if (!_upb_DescState_Grow(s, a)) return false;
s->ptr = upb_MtDataEncoder_PutOneofField(&s->e, s->ptr, number);
}
}
return true;
}
static bool _upb_MessageDef_EncodeMessageSet(upb_DescState* s,
const upb_MessageDef* m,
upb_Arena* a) {
s->ptr = upb_MtDataEncoder_EncodeMessageSet(&s->e, s->ptr);
return true;
}
bool upb_MessageDef_MiniDescriptorEncode(const upb_MessageDef* m, upb_Arena* a,
upb_StringView* out) {
upb_DescState s;
_upb_DescState_Init(&s);
if (!_upb_DescState_Grow(&s, a)) return false;
if (upb_MessageDef_IsMapEntry(m)) {
if (!_upb_MessageDef_EncodeMap(&s, m, a)) return false;
} else if (UPB_DESC(MessageOptions_message_set_wire_format)(m->opts)) {
if (!_upb_MessageDef_EncodeMessageSet(&s, m, a)) return false;
} else {
if (!_upb_MessageDef_EncodeMessage(&s, m, a)) return false;
}
if (!_upb_DescState_Grow(&s, a)) return false;
*s.ptr = '\0';
out->data = s.buf;
out->size = s.ptr - s.buf;
return true;
}
static upb_StringView* _upb_ReservedNames_New(upb_DefBuilder* ctx, int n,
const upb_StringView* protos) {
upb_StringView* sv = _upb_DefBuilder_Alloc(ctx, sizeof(upb_StringView) * n);
for (int i = 0; i < n; i++) {
sv[i].data =
upb_strdup2(protos[i].data, protos[i].size, _upb_DefBuilder_Arena(ctx));
sv[i].size = protos[i].size;
}
return sv;
}
static void create_msgdef(upb_DefBuilder* ctx, const char* prefix,
const UPB_DESC(DescriptorProto*) msg_proto,
const UPB_DESC(FeatureSet*) parent_features,
const upb_MessageDef* containing_type,
upb_MessageDef* m) {
const UPB_DESC(OneofDescriptorProto)* const* oneofs;
const UPB_DESC(FieldDescriptorProto)* const* fields;
const UPB_DESC(DescriptorProto_ExtensionRange)* const* ext_ranges;
const UPB_DESC(DescriptorProto_ReservedRange)* const* res_ranges;
const upb_StringView* res_names;
size_t n_oneof, n_field, n_enum, n_ext, n_msg;
size_t n_ext_range, n_res_range, n_res_name;
upb_StringView name;
UPB_DEF_SET_OPTIONS(m->opts, DescriptorProto, MessageOptions, msg_proto);
m->resolved_features = _upb_DefBuilder_ResolveFeatures(
ctx, parent_features, UPB_DESC(MessageOptions_features)(m->opts));
// Must happen before _upb_DefBuilder_Add()
m->file = _upb_DefBuilder_File(ctx);
m->containing_type = containing_type;
m->is_sorted = true;
name = UPB_DESC(DescriptorProto_name)(msg_proto);
m->full_name = _upb_DefBuilder_MakeFullName(ctx, prefix, name);
_upb_DefBuilder_Add(ctx, m->full_name, _upb_DefType_Pack(m, UPB_DEFTYPE_MSG));
oneofs = UPB_DESC(DescriptorProto_oneof_decl)(msg_proto, &n_oneof);
fields = UPB_DESC(DescriptorProto_field)(msg_proto, &n_field);
ext_ranges =
UPB_DESC(DescriptorProto_extension_range)(msg_proto, &n_ext_range);
res_ranges =
UPB_DESC(DescriptorProto_reserved_range)(msg_proto, &n_res_range);
res_names = UPB_DESC(DescriptorProto_reserved_name)(msg_proto, &n_res_name);
bool ok = upb_inttable_init(&m->itof, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
ok = upb_strtable_init(&m->ntof, n_oneof + n_field, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
ok = upb_strtable_init(&m->jtof, n_field, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
m->oneof_count = n_oneof;
m->oneofs = _upb_OneofDefs_New(ctx, n_oneof, oneofs, m->resolved_features, m);
m->field_count = n_field;
m->fields = _upb_FieldDefs_New(ctx, n_field, fields, m->resolved_features,
m->full_name, m, &m->is_sorted);
// Message Sets may not contain fields.
if (UPB_UNLIKELY(UPB_DESC(MessageOptions_message_set_wire_format)(m->opts))) {
if (UPB_UNLIKELY(n_field > 0)) {
_upb_DefBuilder_Errf(ctx, "invalid message set (%s)", m->full_name);
}
}
m->ext_range_count = n_ext_range;
m->ext_ranges = _upb_ExtensionRanges_New(ctx, n_ext_range, ext_ranges,
m->resolved_features, m);
m->res_range_count = n_res_range;
m->res_ranges =
_upb_MessageReservedRanges_New(ctx, n_res_range, res_ranges, m);
m->res_name_count = n_res_name;
m->res_names = _upb_ReservedNames_New(ctx, n_res_name, res_names);
const size_t synthetic_count = _upb_OneofDefs_Finalize(ctx, m);
m->real_oneof_count = m->oneof_count - synthetic_count;
assign_msg_wellknowntype(m);
upb_inttable_compact(&m->itof, ctx->arena);
const UPB_DESC(EnumDescriptorProto)* const* enums =
UPB_DESC(DescriptorProto_enum_type)(msg_proto, &n_enum);
m->nested_enum_count = n_enum;
m->nested_enums =
_upb_EnumDefs_New(ctx, n_enum, enums, m->resolved_features, m);
const UPB_DESC(FieldDescriptorProto)* const* exts =
UPB_DESC(DescriptorProto_extension)(msg_proto, &n_ext);
m->nested_ext_count = n_ext;
m->nested_exts = _upb_Extensions_New(ctx, n_ext, exts, m->resolved_features,
m->full_name, m);
const UPB_DESC(DescriptorProto)* const* msgs =
UPB_DESC(DescriptorProto_nested_type)(msg_proto, &n_msg);
m->nested_msg_count = n_msg;
m->nested_msgs =
_upb_MessageDefs_New(ctx, n_msg, msgs, m->resolved_features, m);
}
// Allocate and initialize an array of |n| message defs.
upb_MessageDef* _upb_MessageDefs_New(upb_DefBuilder* ctx, int n,
const UPB_DESC(DescriptorProto*)
const* protos,
const UPB_DESC(FeatureSet*)
parent_features,
const upb_MessageDef* containing_type) {
_upb_DefType_CheckPadding(sizeof(upb_MessageDef));
const char* name = containing_type ? containing_type->full_name
: _upb_FileDef_RawPackage(ctx->file);
upb_MessageDef* m = _upb_DefBuilder_Alloc(ctx, sizeof(upb_MessageDef) * n);
for (int i = 0; i < n; i++) {
create_msgdef(ctx, name, protos[i], parent_features, containing_type,
&m[i]);
}
return m;
}
// Must be last.
struct upb_MessageReservedRange {
int32_t start;
int32_t end;
};
upb_MessageReservedRange* _upb_MessageReservedRange_At(
const upb_MessageReservedRange* r, int i) {
return (upb_MessageReservedRange*)&r[i];
}
int32_t upb_MessageReservedRange_Start(const upb_MessageReservedRange* r) {
return r->start;
}
int32_t upb_MessageReservedRange_End(const upb_MessageReservedRange* r) {
return r->end;
}
upb_MessageReservedRange* _upb_MessageReservedRanges_New(
upb_DefBuilder* ctx, int n,
const UPB_DESC(DescriptorProto_ReservedRange) * const* protos,
const upb_MessageDef* m) {
upb_MessageReservedRange* r =
_upb_DefBuilder_Alloc(ctx, sizeof(upb_MessageReservedRange) * n);
for (int i = 0; i < n; i++) {
const int32_t start =
UPB_DESC(DescriptorProto_ReservedRange_start)(protos[i]);
const int32_t end = UPB_DESC(DescriptorProto_ReservedRange_end)(protos[i]);
const int32_t max = kUpb_MaxFieldNumber + 1;
// A full validation would also check that each range is disjoint, and that
// none of the fields overlap with the extension ranges, but we are just
// sanity checking here.
if (start < 1 || end <= start || end > max) {
_upb_DefBuilder_Errf(ctx,
"Reserved range (%d, %d) is invalid, message=%s\n",
(int)start, (int)end, upb_MessageDef_FullName(m));
}
r[i].start = start;
r[i].end = end;
}
return r;
}
// Must be last.
struct upb_MethodDef {
const UPB_DESC(MethodOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
upb_ServiceDef* service;
const char* full_name;
const upb_MessageDef* input_type;
const upb_MessageDef* output_type;
int index;
bool client_streaming;
bool server_streaming;
};
upb_MethodDef* _upb_MethodDef_At(const upb_MethodDef* m, int i) {
return (upb_MethodDef*)&m[i];
}
const upb_ServiceDef* upb_MethodDef_Service(const upb_MethodDef* m) {
return m->service;
}
const UPB_DESC(MethodOptions) * upb_MethodDef_Options(const upb_MethodDef* m) {
return m->opts;
}
bool upb_MethodDef_HasOptions(const upb_MethodDef* m) {
return m->opts != (void*)kUpbDefOptDefault;
}
const UPB_DESC(FeatureSet) *
upb_MethodDef_ResolvedFeatures(const upb_MethodDef* m) {
return m->resolved_features;
}
const char* upb_MethodDef_FullName(const upb_MethodDef* m) {
return m->full_name;
}
const char* upb_MethodDef_Name(const upb_MethodDef* m) {
return _upb_DefBuilder_FullToShort(m->full_name);
}
int upb_MethodDef_Index(const upb_MethodDef* m) { return m->index; }
const upb_MessageDef* upb_MethodDef_InputType(const upb_MethodDef* m) {
return m->input_type;
}
const upb_MessageDef* upb_MethodDef_OutputType(const upb_MethodDef* m) {
return m->output_type;
}
bool upb_MethodDef_ClientStreaming(const upb_MethodDef* m) {
return m->client_streaming;
}
bool upb_MethodDef_ServerStreaming(const upb_MethodDef* m) {
return m->server_streaming;
}
static void create_method(upb_DefBuilder* ctx,
const UPB_DESC(MethodDescriptorProto*) method_proto,
const UPB_DESC(FeatureSet*) parent_features,
upb_ServiceDef* s, upb_MethodDef* m) {
UPB_DEF_SET_OPTIONS(m->opts, MethodDescriptorProto, MethodOptions,
method_proto);
m->resolved_features = _upb_DefBuilder_ResolveFeatures(
ctx, parent_features, UPB_DESC(MethodOptions_features)(m->opts));
upb_StringView name = UPB_DESC(MethodDescriptorProto_name)(method_proto);
m->service = s;
m->full_name =
_upb_DefBuilder_MakeFullName(ctx, upb_ServiceDef_FullName(s), name);
m->client_streaming =
UPB_DESC(MethodDescriptorProto_client_streaming)(method_proto);
m->server_streaming =
UPB_DESC(MethodDescriptorProto_server_streaming)(method_proto);
m->input_type = _upb_DefBuilder_Resolve(
ctx, m->full_name, m->full_name,
UPB_DESC(MethodDescriptorProto_input_type)(method_proto),
UPB_DEFTYPE_MSG);
m->output_type = _upb_DefBuilder_Resolve(
ctx, m->full_name, m->full_name,
UPB_DESC(MethodDescriptorProto_output_type)(method_proto),
UPB_DEFTYPE_MSG);
}
// Allocate and initialize an array of |n| method defs belonging to |s|.
upb_MethodDef* _upb_MethodDefs_New(upb_DefBuilder* ctx, int n,
const UPB_DESC(MethodDescriptorProto*)
const* protos,
const UPB_DESC(FeatureSet*) parent_features,
upb_ServiceDef* s) {
upb_MethodDef* m = _upb_DefBuilder_Alloc(ctx, sizeof(upb_MethodDef) * n);
for (int i = 0; i < n; i++) {
create_method(ctx, protos[i], parent_features, s, &m[i]);
m[i].index = i;
}
return m;
}
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
// Must be last.
struct upb_OneofDef {
const UPB_DESC(OneofOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
const upb_MessageDef* parent;
const char* full_name;
int field_count;
bool synthetic;
const upb_FieldDef** fields;
upb_strtable ntof; // lookup a field by name
upb_inttable itof; // lookup a field by number (index)
};
upb_OneofDef* _upb_OneofDef_At(const upb_OneofDef* o, int i) {
return (upb_OneofDef*)&o[i];
}
const UPB_DESC(OneofOptions) * upb_OneofDef_Options(const upb_OneofDef* o) {
return o->opts;
}
bool upb_OneofDef_HasOptions(const upb_OneofDef* o) {
return o->opts != (void*)kUpbDefOptDefault;
}
const UPB_DESC(FeatureSet) *
upb_OneofDef_ResolvedFeatures(const upb_OneofDef* o) {
return o->resolved_features;
}
const char* upb_OneofDef_FullName(const upb_OneofDef* o) {
return o->full_name;
}
const char* upb_OneofDef_Name(const upb_OneofDef* o) {
return _upb_DefBuilder_FullToShort(o->full_name);
}
const upb_MessageDef* upb_OneofDef_ContainingType(const upb_OneofDef* o) {
return o->parent;
}
int upb_OneofDef_FieldCount(const upb_OneofDef* o) { return o->field_count; }
const upb_FieldDef* upb_OneofDef_Field(const upb_OneofDef* o, int i) {
UPB_ASSERT(i < o->field_count);
return o->fields[i];
}
int upb_OneofDef_numfields(const upb_OneofDef* o) { return o->field_count; }
uint32_t upb_OneofDef_Index(const upb_OneofDef* o) {
// Compute index in our parent's array.
return o - upb_MessageDef_Oneof(o->parent, 0);
}
bool upb_OneofDef_IsSynthetic(const upb_OneofDef* o) { return o->synthetic; }
const upb_FieldDef* upb_OneofDef_LookupNameWithSize(const upb_OneofDef* o,
const char* name,
size_t size) {
upb_value val;
return upb_strtable_lookup2(&o->ntof, name, size, &val)
? upb_value_getptr(val)
: NULL;
}
const upb_FieldDef* upb_OneofDef_LookupName(const upb_OneofDef* o,
const char* name) {
return upb_OneofDef_LookupNameWithSize(o, name, strlen(name));
}
const upb_FieldDef* upb_OneofDef_LookupNumber(const upb_OneofDef* o,
uint32_t num) {
upb_value val;
return upb_inttable_lookup(&o->itof, num, &val) ? upb_value_getptr(val)
: NULL;
}
void _upb_OneofDef_Insert(upb_DefBuilder* ctx, upb_OneofDef* o,
const upb_FieldDef* f, const char* name,
size_t size) {
o->field_count++;
if (_upb_FieldDef_IsProto3Optional(f)) o->synthetic = true;
const int number = upb_FieldDef_Number(f);
const upb_value v = upb_value_constptr(f);
// TODO: This lookup is unfortunate because we also perform it when
// inserting into the message's table. Unfortunately that step occurs after
// this one and moving things around could be tricky so let's leave it for
// a future refactoring.
const bool number_exists = upb_inttable_lookup(&o->itof, number, NULL);
if (UPB_UNLIKELY(number_exists)) {
_upb_DefBuilder_Errf(ctx, "oneof fields have the same number (%d)", number);
}
// TODO: More redundant work happening here.
const bool name_exists = upb_strtable_lookup2(&o->ntof, name, size, NULL);
if (UPB_UNLIKELY(name_exists)) {
_upb_DefBuilder_Errf(ctx, "oneof fields have the same name (%.*s)",
(int)size, name);
}
const bool ok = upb_inttable_insert(&o->itof, number, v, ctx->arena) &&
upb_strtable_insert(&o->ntof, name, size, v, ctx->arena);
if (UPB_UNLIKELY(!ok)) {
_upb_DefBuilder_OomErr(ctx);
}
}
// Returns the synthetic count.
size_t _upb_OneofDefs_Finalize(upb_DefBuilder* ctx, upb_MessageDef* m) {
int synthetic_count = 0;
for (int i = 0; i < upb_MessageDef_OneofCount(m); i++) {
upb_OneofDef* o = (upb_OneofDef*)upb_MessageDef_Oneof(m, i);
if (o->synthetic && o->field_count != 1) {
_upb_DefBuilder_Errf(ctx,
"Synthetic oneofs must have one field, not %d: %s",
o->field_count, upb_OneofDef_Name(o));
}
if (o->synthetic) {
synthetic_count++;
} else if (synthetic_count != 0) {
_upb_DefBuilder_Errf(
ctx, "Synthetic oneofs must be after all other oneofs: %s",
upb_OneofDef_Name(o));
}
o->fields =
_upb_DefBuilder_Alloc(ctx, sizeof(upb_FieldDef*) * o->field_count);
o->field_count = 0;
}
for (int i = 0; i < upb_MessageDef_FieldCount(m); i++) {
const upb_FieldDef* f = upb_MessageDef_Field(m, i);
upb_OneofDef* o = (upb_OneofDef*)upb_FieldDef_ContainingOneof(f);
if (o) {
o->fields[o->field_count++] = f;
}
}
return synthetic_count;
}
static void create_oneofdef(upb_DefBuilder* ctx, upb_MessageDef* m,
const UPB_DESC(OneofDescriptorProto*) oneof_proto,
const UPB_DESC(FeatureSet*) parent_features,
const upb_OneofDef* _o) {
upb_OneofDef* o = (upb_OneofDef*)_o;
UPB_DEF_SET_OPTIONS(o->opts, OneofDescriptorProto, OneofOptions, oneof_proto);
o->resolved_features = _upb_DefBuilder_ResolveFeatures(
ctx, parent_features, UPB_DESC(OneofOptions_features)(o->opts));
upb_StringView name = UPB_DESC(OneofDescriptorProto_name)(oneof_proto);
o->parent = m;
o->full_name =
_upb_DefBuilder_MakeFullName(ctx, upb_MessageDef_FullName(m), name);
o->field_count = 0;
o->synthetic = false;
if (upb_MessageDef_FindByNameWithSize(m, name.data, name.size, NULL, NULL)) {
_upb_DefBuilder_Errf(ctx, "duplicate oneof name (%s)", o->full_name);
}
upb_value v = _upb_DefType_Pack(o, UPB_DEFTYPE_ONEOF);
bool ok = _upb_MessageDef_Insert(m, name.data, name.size, v, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
ok = upb_inttable_init(&o->itof, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
ok = upb_strtable_init(&o->ntof, 4, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
}
// Allocate and initialize an array of |n| oneof defs.
upb_OneofDef* _upb_OneofDefs_New(upb_DefBuilder* ctx, int n,
const UPB_DESC(OneofDescriptorProto*)
const* protos,
const UPB_DESC(FeatureSet*) parent_features,
upb_MessageDef* m) {
_upb_DefType_CheckPadding(sizeof(upb_OneofDef));
upb_OneofDef* o = _upb_DefBuilder_Alloc(ctx, sizeof(upb_OneofDef) * n);
for (int i = 0; i < n; i++) {
create_oneofdef(ctx, m, protos[i], parent_features, &o[i]);
}
return o;
}
// Must be last.
struct upb_ServiceDef {
const UPB_DESC(ServiceOptions*) opts;
const UPB_DESC(FeatureSet*) resolved_features;
const upb_FileDef* file;
const char* full_name;
upb_MethodDef* methods;
int method_count;
int index;
#if UINTPTR_MAX == 0xffffffff
uint32_t padding; // Increase size to a multiple of 8.
#endif
};
upb_ServiceDef* _upb_ServiceDef_At(const upb_ServiceDef* s, int index) {
return (upb_ServiceDef*)&s[index];
}
const UPB_DESC(ServiceOptions) *
upb_ServiceDef_Options(const upb_ServiceDef* s) {
return s->opts;
}
bool upb_ServiceDef_HasOptions(const upb_ServiceDef* s) {
return s->opts != (void*)kUpbDefOptDefault;
}
const UPB_DESC(FeatureSet) *
upb_ServiceDef_ResolvedFeatures(const upb_ServiceDef* s) {
return s->resolved_features;
}
const char* upb_ServiceDef_FullName(const upb_ServiceDef* s) {
return s->full_name;
}
const char* upb_ServiceDef_Name(const upb_ServiceDef* s) {
return _upb_DefBuilder_FullToShort(s->full_name);
}
int upb_ServiceDef_Index(const upb_ServiceDef* s) { return s->index; }
const upb_FileDef* upb_ServiceDef_File(const upb_ServiceDef* s) {
return s->file;
}
int upb_ServiceDef_MethodCount(const upb_ServiceDef* s) {
return s->method_count;
}
const upb_MethodDef* upb_ServiceDef_Method(const upb_ServiceDef* s, int i) {
return (i < 0 || i >= s->method_count) ? NULL
: _upb_MethodDef_At(s->methods, i);
}
const upb_MethodDef* upb_ServiceDef_FindMethodByName(const upb_ServiceDef* s,
const char* name) {
for (int i = 0; i < s->method_count; i++) {
const upb_MethodDef* m = _upb_MethodDef_At(s->methods, i);
if (strcmp(name, upb_MethodDef_Name(m)) == 0) {
return m;
}
}
return NULL;
}
static void create_service(upb_DefBuilder* ctx,
const UPB_DESC(ServiceDescriptorProto*) svc_proto,
const UPB_DESC(FeatureSet*) parent_features,
upb_ServiceDef* s) {
UPB_DEF_SET_OPTIONS(s->opts, ServiceDescriptorProto, ServiceOptions,
svc_proto);
s->resolved_features = _upb_DefBuilder_ResolveFeatures(
ctx, parent_features, UPB_DESC(ServiceOptions_features)(s->opts));
// Must happen before _upb_DefBuilder_Add()
s->file = _upb_DefBuilder_File(ctx);
upb_StringView name = UPB_DESC(ServiceDescriptorProto_name)(svc_proto);
const char* package = _upb_FileDef_RawPackage(s->file);
s->full_name = _upb_DefBuilder_MakeFullName(ctx, package, name);
_upb_DefBuilder_Add(ctx, s->full_name,
_upb_DefType_Pack(s, UPB_DEFTYPE_SERVICE));
size_t n;
const UPB_DESC(MethodDescriptorProto)* const* methods =
UPB_DESC(ServiceDescriptorProto_method)(svc_proto, &n);
s->method_count = n;
s->methods = _upb_MethodDefs_New(ctx, n, methods, s->resolved_features, s);
}
upb_ServiceDef* _upb_ServiceDefs_New(upb_DefBuilder* ctx, int n,
const UPB_DESC(ServiceDescriptorProto*)
const* protos,
const UPB_DESC(FeatureSet*)
parent_features) {
_upb_DefType_CheckPadding(sizeof(upb_ServiceDef));
upb_ServiceDef* s = _upb_DefBuilder_Alloc(ctx, sizeof(upb_ServiceDef) * n);
for (int i = 0; i < n; i++) {
create_service(ctx, protos[i], parent_features, &s[i]);
s[i].index = i;
}
return s;
}
// This should #undef all macros #defined in def.inc
#undef UPB_SIZE
#undef UPB_PTR_AT
#undef UPB_SIZEOF_FLEX
#undef UPB_MAPTYPE_STRING
#undef UPB_EXPORT
#undef UPB_INLINE
#undef UPB_API
#undef UPBC_API
#undef UPB_API_INLINE
#undef UPB_ALIGN_UP
#undef UPB_ALIGN_DOWN
#undef UPB_ALIGN_MALLOC
#undef UPB_ALIGN_OF
#undef UPB_ALIGN_AS
#undef UPB_MALLOC_ALIGN
#undef UPB_LIKELY
#undef UPB_UNLIKELY
#undef UPB_FORCEINLINE
#undef UPB_NOINLINE
#undef UPB_NORETURN
#undef UPB_PRINTF
#undef UPB_MAX
#undef UPB_MIN
#undef UPB_UNUSED
#undef UPB_ASSUME
#undef UPB_ASSERT
#undef UPB_UNREACHABLE
#undef UPB_SETJMP
#undef UPB_LONGJMP
#undef UPB_PTRADD
#undef UPB_MUSTTAIL
#undef UPB_FASTTABLE_SUPPORTED
#undef UPB_FASTTABLE_MASK
#undef UPB_FASTTABLE
#undef UPB_FASTTABLE_INIT
#undef UPB_POISON_MEMORY_REGION
#undef UPB_UNPOISON_MEMORY_REGION
#undef UPB_ASAN
#undef UPB_ASAN_GUARD_SIZE
#undef UPB_CLANG_ASAN
#undef UPB_TREAT_CLOSED_ENUMS_LIKE_OPEN
#undef UPB_DEPRECATED
#undef UPB_GNUC_MIN
#undef UPB_DESCRIPTOR_UPB_H_FILENAME
#undef UPB_DESC
#undef UPB_DESC_MINITABLE
#undef UPB_IS_GOOGLE3
#undef UPB_ATOMIC
#undef UPB_USE_C11_ATOMICS
#undef UPB_PRIVATE
#undef UPB_ONLYBITS
#undef UPB_LINKARR_DECLARE
#undef UPB_LINKARR_APPEND
#undef UPB_LINKARR_START
#undef UPB_LINKARR_STOP
#undef UPB_FUTURE_BREAKING_CHANGES
#undef UPB_FUTURE_PYTHON_CLOSED_ENUM_ENFORCEMENT