| // Protocol Buffers - Google's data interchange format |
| // Copyright 2023 Google LLC. All rights reserved. |
| // |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file or at |
| // https://developers.google.com/open-source/licenses/bsd |
| |
| #include "upb/reflection/internal/field_def.h" |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "upb/base/descriptor_constants.h" |
| #include "upb/base/string_view.h" |
| #include "upb/mem/arena.h" |
| #include "upb/message/accessors.h" |
| #include "upb/message/value.h" |
| #include "upb/mini_descriptor/decode.h" |
| #include "upb/mini_descriptor/internal/encode.h" |
| #include "upb/mini_descriptor/internal/modifiers.h" |
| #include "upb/mini_table/extension.h" |
| #include "upb/mini_table/field.h" |
| #include "upb/mini_table/message.h" |
| #include "upb/mini_table/sub.h" |
| #include "upb/reflection/def.h" |
| #include "upb/reflection/def_type.h" |
| #include "upb/reflection/internal/def_builder.h" |
| #include "upb/reflection/internal/def_pool.h" |
| #include "upb/reflection/internal/desc_state.h" |
| #include "upb/reflection/internal/enum_def.h" |
| #include "upb/reflection/internal/file_def.h" |
| #include "upb/reflection/internal/message_def.h" |
| #include "upb/reflection/internal/oneof_def.h" |
| #include "upb/reflection/internal/strdup2.h" |
| |
| // Must be last. |
| #include "upb/port/def.inc" |
| |
| #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) { |
| // TODO: remove once we can deprecate kUpb_FieldType_Group. |
| if (f->type_ == kUpb_FieldType_Message && |
| UPB_DESC(FeatureSet_message_encoding)(f->resolved_features) == |
| UPB_DESC(FeatureSet_DELIMITED)) { |
| return kUpb_FieldType_Group; |
| } |
| return f->type_; |
| } |
| |
| uint32_t upb_FieldDef_Index(const upb_FieldDef* f) { return f->index_; } |
| |
| upb_Label upb_FieldDef_Label(const upb_FieldDef* f) { |
| // TODO: remove once we can deprecate kUpb_Label_Required. |
| if (UPB_DESC(FeatureSet_field_presence)(f->resolved_features) == |
| UPB_DESC(FeatureSet_LEGACY_REQUIRED)) { |
| return kUpb_Label_Required; |
| } |
| 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_CType(f) == kUpb_CType_Message ? f->sub.msgdef : NULL; |
| } |
| |
| const upb_EnumDef* upb_FieldDef_EnumSubDef(const upb_FieldDef* f) { |
| return upb_FieldDef_CType(f) == kUpb_CType_Enum ? 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->fields[f->layout_index]; |
| } |
| } |
| |
| const upb_MiniTableExtension* _upb_FieldDef_ExtensionMiniTable( |
| 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); |
| } |
| |
| 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_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; |
| } |
| |
| // begin:google_only |
| // #ifndef UPB_BOOTSTRAP_STAGE0 |
| // if (syntax == kUpb_Syntax_Proto3 && |
| // UPB_DESC(FieldOptions_has_enforce_utf8)(options) && |
| // !UPB_DESC(FieldOptions_enforce_utf8)(options)) { |
| // int val = UPB_DESC(FeatureSet_UNVERIFIED); |
| // UPB_DESC(FeatureSet_set_utf8_validation(features, val)); |
| // ret = true; |
| // } |
| // #endif |
| // // clang-format off |
| // end:google_only |
| // clang-format on |
| |
| 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->label_ = (int)UPB_DESC(FieldDescriptorProto_label)(field_proto); |
| 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(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 >= 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); |
| |
| 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_ = |
| 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->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_FieldDef_ExtensionMiniTable(f)->field.number == 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; // It appears there is no way of |
| // this being a 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_ExtensionMiniTable(f); |
| |
| if (ctx->layout) { |
| UPB_ASSERT(upb_FieldDef_Number(f) == ext->field.number); |
| } 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)) { |
| sub.submsg = upb_MessageDef_MiniTable(f->sub.msgdef); |
| } else if (_upb_FieldDef_IsClosedEnum(f)) { |
| sub.subenum = _upb_EnumDef_MiniTable(f->sub.enumdef); |
| } |
| bool ok2 = upb_MiniTableExtension_Init(desc.data, desc.size, mut_ext, |
| upb_MessageDef_MiniTable(f->msgdef), |
| sub, 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); |
| } |
| } |
