Roll abseil_revision fba8a316c3..cde2e2410e
Change Log:
https://chromium.googlesource.com/external/github.com/abseil/abseil-cpp/+log/fba8a316c3..cde2e2410e
Full diff:
https://chromium.googlesource.com/external/github.com/abseil/abseil-cpp/+/fba8a316c3..cde2e2410e
Bug: None
Change-Id: I2f173ded43b1a8ac40aa2afdb73a15ed0c76279a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2166166
Reviewed-by: Mirko Bonadei <mbonadei@chromium.org>
Commit-Queue: Danil Chapovalov <danilchap@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#762929}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 2a208ffb896a0a0559fec57573f1c2a6ae7ffd6f
diff --git a/CMake/AbseilDll.cmake b/CMake/AbseilDll.cmake
index 7646c15..d342959 100644
--- a/CMake/AbseilDll.cmake
+++ b/CMake/AbseilDll.cmake
@@ -294,6 +294,8 @@
"types/internal/conformance_aliases.h"
"types/internal/conformance_archetype.h"
"types/internal/conformance_profile.h"
+ "types/internal/parentheses.h"
+ "types/internal/transform_args.h"
"types/internal/variant.h"
"types/optional.h"
"types/internal/optional.h"
diff --git a/CMake/abslConfig.cmake.in b/CMake/abslConfig.cmake.in
index 60847fa..62d246d 100644
--- a/CMake/abslConfig.cmake.in
+++ b/CMake/abslConfig.cmake.in
@@ -1,7 +1,8 @@
# absl CMake configuration file.
-include(FindThreads)
+include(CMakeFindDependencyMacro)
+find_dependency(Threads)
@PACKAGE_INIT@
-include ("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
\ No newline at end of file
+include ("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e94dcd3..4767045 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -81,6 +81,10 @@
## pthread
find_package(Threads REQUIRED)
+option(ABSL_USE_EXTERNAL_GOOGLETEST
+ "If ON, Abseil will assume that the targets for GoogleTest are already provided by the including project. This makes sense when Abseil is used with add_subproject." OFF)
+
+
option(ABSL_USE_GOOGLETEST_HEAD
"If ON, abseil will download HEAD from googletest at config time." OFF)
@@ -99,14 +103,15 @@
## check targets
if(BUILD_TESTING)
-
- set(absl_gtest_build_dir ${CMAKE_BINARY_DIR}/googletest-build)
- if(${ABSL_USE_GOOGLETEST_HEAD})
- set(absl_gtest_src_dir ${CMAKE_BINARY_DIR}/googletest-src)
- else()
- set(absl_gtest_src_dir ${ABSL_LOCAL_GOOGLETEST_DIR})
+ if (NOT ABSL_USE_EXTERNAL_GOOGLETEST)
+ set(absl_gtest_build_dir ${CMAKE_BINARY_DIR}/googletest-build)
+ if(${ABSL_USE_GOOGLETEST_HEAD})
+ set(absl_gtest_src_dir ${CMAKE_BINARY_DIR}/googletest-src)
+ else()
+ set(absl_gtest_src_dir ${ABSL_LOCAL_GOOGLETEST_DIR})
+ endif()
+ include(CMake/Googletest/DownloadGTest.cmake)
endif()
- include(CMake/Googletest/DownloadGTest.cmake)
check_target(gtest)
check_target(gtest_main)
diff --git a/README.chromium b/README.chromium
index 0471357..53ef6aa 100644
--- a/README.chromium
+++ b/README.chromium
@@ -4,7 +4,7 @@
License: Apache 2.0
License File: LICENSE
Version: 0
-Revision: fba8a316c30690097de5d6127ad307d84a1b74ca
+Revision: cde2e2410e58c884b3bf5f67c6511e6266036249
Security Critical: yes
Description:
diff --git a/absl/BUILD.bazel b/absl/BUILD.bazel
index 5a03acf..f7fc2a7 100644
--- a/absl/BUILD.bazel
+++ b/absl/BUILD.bazel
@@ -44,9 +44,10 @@
config_setting(
name = "windows",
- values = {
- "cpu": "x64_windows",
- },
+ constraint_values = [
+ "@bazel_tools//platforms:x86_64",
+ "@bazel_tools//platforms:windows",
+ ],
visibility = [":__subpackages__"],
)
diff --git a/absl/algorithm/BUILD.bazel b/absl/algorithm/BUILD.bazel
index 6a96420..229cd71 100644
--- a/absl/algorithm/BUILD.bazel
+++ b/absl/algorithm/BUILD.bazel
@@ -31,7 +31,9 @@
hdrs = ["algorithm.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
- deps = ["//absl/base:config"],
+ deps = [
+ "//absl/base:config",
+ ],
)
cc_test(
diff --git a/absl/base/CMakeLists.txt b/absl/base/CMakeLists.txt
index 5454992..a63b591 100644
--- a/absl/base/CMakeLists.txt
+++ b/absl/base/CMakeLists.txt
@@ -191,7 +191,7 @@
${ABSL_DEFAULT_COPTS}
LINKOPTS
${ABSL_DEFAULT_LINKOPTS}
- $<$<BOOL:${LIBRT}>:${LIBRT}>
+ $<$<BOOL:${LIBRT}>:-lrt>
$<$<BOOL:${MINGW}>:"advapi32">
DEPS
absl::atomic_hook
diff --git a/absl/base/internal/endian_test.cc b/absl/base/internal/endian_test.cc
index aa6b849..a1691b1 100644
--- a/absl/base/internal/endian_test.cc
+++ b/absl/base/internal/endian_test.cc
@@ -54,24 +54,22 @@
const uint16_t k16ValueBE{0x2301};
#endif
-template<typename T>
-std::vector<T> GenerateAllValuesForType() {
- std::vector<T> result;
- T next = std::numeric_limits<T>::min();
- while (true) {
- result.push_back(next);
- if (next == std::numeric_limits<T>::max()) {
- return result;
- }
- ++next;
+std::vector<uint16_t> GenerateAllUint16Values() {
+ std::vector<uint16_t> result;
+ result.reserve(size_t{1} << (sizeof(uint16_t) * 8));
+ for (uint32_t i = std::numeric_limits<uint16_t>::min();
+ i <= std::numeric_limits<uint16_t>::max(); ++i) {
+ result.push_back(static_cast<uint16_t>(i));
}
+ return result;
}
template<typename T>
-std::vector<T> GenerateRandomIntegers(size_t numValuesToTest) {
+std::vector<T> GenerateRandomIntegers(size_t num_values_to_test) {
std::vector<T> result;
+ result.reserve(num_values_to_test);
std::mt19937_64 rng(kRandomSeed);
- for (size_t i = 0; i < numValuesToTest; ++i) {
+ for (size_t i = 0; i < num_values_to_test; ++i) {
result.push_back(rng());
}
return result;
@@ -148,7 +146,7 @@
}
TEST(EndianessTest, Uint16) {
- GBSwapHelper(GenerateAllValuesForType<uint16_t>(), &Swap16);
+ GBSwapHelper(GenerateAllUint16Values(), &Swap16);
}
TEST(EndianessTest, Uint32) {
diff --git a/absl/base/optimization.h b/absl/base/optimization.h
index 646523b..1541d7a 100644
--- a/absl/base/optimization.h
+++ b/absl/base/optimization.h
@@ -178,4 +178,38 @@
#define ABSL_PREDICT_TRUE(x) (x)
#endif
+// ABSL_INTERNAL_ASSUME(cond)
+// Informs the compiler than a condition is always true and that it can assume
+// it to be true for optimization purposes. The call has undefined behavior if
+// the condition is false.
+// In !NDEBUG mode, the condition is checked with an assert().
+// NOTE: The expression must not have side effects, as it will only be evaluated
+// in some compilation modes and not others.
+//
+// Example:
+//
+// int x = ...;
+// ABSL_INTERNAL_ASSUME(x >= 0);
+// // The compiler can optimize the division to a simple right shift using the
+// // assumption specified above.
+// int y = x / 16;
+//
+#if !defined(NDEBUG)
+#define ABSL_INTERNAL_ASSUME(cond) assert(cond)
+#elif ABSL_HAVE_BUILTIN(__builtin_assume)
+#define ABSL_INTERNAL_ASSUME(cond) __builtin_assume(cond)
+#elif defined(__GNUC__) || ABSL_HAVE_BUILTIN(__builtin_unreachable)
+#define ABSL_INTERNAL_ASSUME(cond) \
+ do { \
+ if (!(cond)) __builtin_unreachable(); \
+ } while (0)
+#elif defined(_MSC_VER)
+#define ABSL_INTERNAL_ASSUME(cond) __assume(cond)
+#else
+#define ABSL_INTERNAL_ASSUME(cond) \
+ do { \
+ static_cast<void>(false && (cond)); \
+ } while (0)
+#endif
+
#endif // ABSL_BASE_OPTIMIZATION_H_
diff --git a/absl/base/thread_annotations.h b/absl/base/thread_annotations.h
index bcd05e5..7eb1d59 100644
--- a/absl/base/thread_annotations.h
+++ b/absl/base/thread_annotations.h
@@ -161,7 +161,7 @@
//
// Documents if a class does RAII locking (such as the `MutexLock` class).
// The constructor should use `LOCK_FUNCTION()` to specify the mutex that is
-// acquired, and the destructor should use `ABSL_UNLOCK_FUNCTION()` with no
+// acquired, and the destructor should use `UNLOCK_FUNCTION()` with no
// arguments; the analysis will assume that the destructor unlocks whatever the
// constructor locked.
#define ABSL_SCOPED_LOCKABLE \
diff --git a/absl/container/BUILD.bazel b/absl/container/BUILD.bazel
index 1b0710b..0692123 100644
--- a/absl/container/BUILD.bazel
+++ b/absl/container/BUILD.bazel
@@ -73,6 +73,7 @@
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
+ ":counting_allocator",
":fixed_array",
"//absl/base:config",
"//absl/base:exception_testing",
@@ -257,6 +258,7 @@
":unordered_map_lookup_test",
":unordered_map_members_test",
":unordered_map_modifiers_test",
+ "//absl/base:raw_logging_internal",
"//absl/types:any",
"@com_google_googletest//:gtest_main",
],
@@ -290,6 +292,7 @@
":unordered_set_lookup_test",
":unordered_set_members_test",
":unordered_set_modifiers_test",
+ "//absl/base:raw_logging_internal",
"//absl/memory",
"//absl/strings",
"@com_google_googletest//:gtest_main",
diff --git a/absl/container/CMakeLists.txt b/absl/container/CMakeLists.txt
index d79fa12..13d9695 100644
--- a/absl/container/CMakeLists.txt
+++ b/absl/container/CMakeLists.txt
@@ -147,6 +147,7 @@
${ABSL_TEST_COPTS}
DEPS
absl::fixed_array
+ absl::counting_allocator
absl::config
absl::exception_testing
absl::hash_testing
@@ -303,6 +304,7 @@
absl::unordered_map_members_test
absl::unordered_map_modifiers_test
absl::any
+ absl::raw_logging_internal
gmock_main
)
@@ -339,6 +341,7 @@
absl::unordered_set_members_test
absl::unordered_set_modifiers_test
absl::memory
+ absl::raw_logging_internal
absl::strings
gmock_main
)
diff --git a/absl/container/btree_test.cc b/absl/container/btree_test.cc
index 7ccdf6a..bbdb5f4 100644
--- a/absl/container/btree_test.cc
+++ b/absl/container/btree_test.cc
@@ -1543,7 +1543,7 @@
#ifdef ABSL_HAVE_EXCEPTIONS
EXPECT_THROW(map.at(3), std::out_of_range);
#else
- EXPECT_DEATH(map.at(3), "absl::btree_map::at");
+ EXPECT_DEATH_IF_SUPPORTED(map.at(3), "absl::btree_map::at");
#endif
}
diff --git a/absl/container/fixed_array.h b/absl/container/fixed_array.h
index 94385ea..60637d9 100644
--- a/absl/container/fixed_array.h
+++ b/absl/container/fixed_array.h
@@ -106,13 +106,13 @@
public:
using allocator_type = typename AllocatorTraits::allocator_type;
- using value_type = typename allocator_type::value_type;
- using pointer = typename allocator_type::pointer;
- using const_pointer = typename allocator_type::const_pointer;
- using reference = typename allocator_type::reference;
- using const_reference = typename allocator_type::const_reference;
- using size_type = typename allocator_type::size_type;
- using difference_type = typename allocator_type::difference_type;
+ using value_type = typename AllocatorTraits::value_type;
+ using pointer = typename AllocatorTraits::pointer;
+ using const_pointer = typename AllocatorTraits::const_pointer;
+ using reference = value_type&;
+ using const_reference = const value_type&;
+ using size_type = typename AllocatorTraits::size_type;
+ using difference_type = typename AllocatorTraits::difference_type;
using iterator = pointer;
using const_iterator = const_pointer;
using reverse_iterator = std::reverse_iterator<iterator>;
diff --git a/absl/container/fixed_array_test.cc b/absl/container/fixed_array_test.cc
index 9b1c224..064a88a 100644
--- a/absl/container/fixed_array_test.cc
+++ b/absl/container/fixed_array_test.cc
@@ -29,6 +29,7 @@
#include "gtest/gtest.h"
#include "absl/base/internal/exception_testing.h"
#include "absl/base/options.h"
+#include "absl/container/internal/counting_allocator.h"
#include "absl/hash/hash_testing.h"
#include "absl/memory/memory.h"
@@ -638,70 +639,9 @@
}
#endif // __GNUC__
-// This is a stateful allocator, but the state lives outside of the
-// allocator (in whatever test is using the allocator). This is odd
-// but helps in tests where the allocator is propagated into nested
-// containers - that chain of allocators uses the same state and is
-// thus easier to query for aggregate allocation information.
-template <typename T>
-class CountingAllocator : public std::allocator<T> {
- public:
- using Alloc = std::allocator<T>;
- using pointer = typename Alloc::pointer;
- using size_type = typename Alloc::size_type;
-
- CountingAllocator() : bytes_used_(nullptr), instance_count_(nullptr) {}
- explicit CountingAllocator(int64_t* b)
- : bytes_used_(b), instance_count_(nullptr) {}
- CountingAllocator(int64_t* b, int64_t* a)
- : bytes_used_(b), instance_count_(a) {}
-
- template <typename U>
- explicit CountingAllocator(const CountingAllocator<U>& x)
- : Alloc(x),
- bytes_used_(x.bytes_used_),
- instance_count_(x.instance_count_) {}
-
- pointer allocate(size_type n, const void* const hint = nullptr) {
- assert(bytes_used_ != nullptr);
- *bytes_used_ += n * sizeof(T);
- return Alloc::allocate(n, hint);
- }
-
- void deallocate(pointer p, size_type n) {
- Alloc::deallocate(p, n);
- assert(bytes_used_ != nullptr);
- *bytes_used_ -= n * sizeof(T);
- }
-
- template <typename... Args>
- void construct(pointer p, Args&&... args) {
- Alloc::construct(p, absl::forward<Args>(args)...);
- if (instance_count_) {
- *instance_count_ += 1;
- }
- }
-
- void destroy(pointer p) {
- Alloc::destroy(p);
- if (instance_count_) {
- *instance_count_ -= 1;
- }
- }
-
- template <typename U>
- class rebind {
- public:
- using other = CountingAllocator<U>;
- };
-
- int64_t* bytes_used_;
- int64_t* instance_count_;
-};
-
TEST(AllocatorSupportTest, CountInlineAllocations) {
constexpr size_t inlined_size = 4;
- using Alloc = CountingAllocator<int>;
+ using Alloc = absl::container_internal::CountingAllocator<int>;
using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
int64_t allocated = 0;
@@ -722,7 +662,7 @@
TEST(AllocatorSupportTest, CountOutoflineAllocations) {
constexpr size_t inlined_size = 4;
- using Alloc = CountingAllocator<int>;
+ using Alloc = absl::container_internal::CountingAllocator<int>;
using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
int64_t allocated = 0;
@@ -743,7 +683,7 @@
TEST(AllocatorSupportTest, CountCopyInlineAllocations) {
constexpr size_t inlined_size = 4;
- using Alloc = CountingAllocator<int>;
+ using Alloc = absl::container_internal::CountingAllocator<int>;
using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
int64_t allocated1 = 0;
@@ -771,7 +711,7 @@
TEST(AllocatorSupportTest, CountCopyOutoflineAllocations) {
constexpr size_t inlined_size = 4;
- using Alloc = CountingAllocator<int>;
+ using Alloc = absl::container_internal::CountingAllocator<int>;
using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
int64_t allocated1 = 0;
@@ -803,7 +743,7 @@
using testing::SizeIs;
constexpr size_t inlined_size = 4;
- using Alloc = CountingAllocator<int>;
+ using Alloc = absl::container_internal::CountingAllocator<int>;
using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
{
@@ -833,10 +773,10 @@
int* raw = a.data();
raw[0] = 0;
raw[9] = 0;
- EXPECT_DEATH(raw[-2] = 0, "container-overflow");
- EXPECT_DEATH(raw[-1] = 0, "container-overflow");
- EXPECT_DEATH(raw[10] = 0, "container-overflow");
- EXPECT_DEATH(raw[31] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[-2] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[-1] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[10] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[31] = 0, "container-overflow");
}
TEST(FixedArrayTest, AddressSanitizerAnnotations2) {
@@ -844,10 +784,10 @@
char* raw = a.data();
raw[0] = 0;
raw[11] = 0;
- EXPECT_DEATH(raw[-7] = 0, "container-overflow");
- EXPECT_DEATH(raw[-1] = 0, "container-overflow");
- EXPECT_DEATH(raw[12] = 0, "container-overflow");
- EXPECT_DEATH(raw[17] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[-7] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[-1] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[12] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[17] = 0, "container-overflow");
}
TEST(FixedArrayTest, AddressSanitizerAnnotations3) {
@@ -855,8 +795,8 @@
uint64_t* raw = a.data();
raw[0] = 0;
raw[19] = 0;
- EXPECT_DEATH(raw[-1] = 0, "container-overflow");
- EXPECT_DEATH(raw[20] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[-1] = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[20] = 0, "container-overflow");
}
TEST(FixedArrayTest, AddressSanitizerAnnotations4) {
@@ -868,11 +808,11 @@
// there is only a 8-byte red zone before the container range, so we only
// access the last 4 bytes of the struct to make sure it stays within the red
// zone.
- EXPECT_DEATH(raw[-1].z_ = 0, "container-overflow");
- EXPECT_DEATH(raw[10] = ThreeInts(), "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[-1].z_ = 0, "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[10] = ThreeInts(), "container-overflow");
// The actual size of storage is kDefaultBytes=256, 21*12 = 252,
// so reading raw[21] should still trigger the correct warning.
- EXPECT_DEATH(raw[21] = ThreeInts(), "container-overflow");
+ EXPECT_DEATH_IF_SUPPORTED(raw[21] = ThreeInts(), "container-overflow");
}
#endif // ADDRESS_SANITIZER
diff --git a/absl/container/flat_hash_map_test.cc b/absl/container/flat_hash_map_test.cc
index 728b693..2823c32 100644
--- a/absl/container/flat_hash_map_test.cc
+++ b/absl/container/flat_hash_map_test.cc
@@ -16,6 +16,7 @@
#include <memory>
+#include "absl/base/internal/raw_logging.h"
#include "absl/container/internal/hash_generator_testing.h"
#include "absl/container/internal/unordered_map_constructor_test.h"
#include "absl/container/internal/unordered_map_lookup_test.h"
@@ -34,6 +35,19 @@
using ::testing::Pair;
using ::testing::UnorderedElementsAre;
+// Check that absl::flat_hash_map works in a global constructor.
+struct BeforeMain {
+ BeforeMain() {
+ absl::flat_hash_map<int, int> x;
+ x.insert({1, 1});
+ ABSL_RAW_CHECK(x.find(0) == x.end(), "x should not contain 0");
+ auto it = x.find(1);
+ ABSL_RAW_CHECK(it != x.end(), "x should contain 1");
+ ABSL_RAW_CHECK(it->second, "1 should map to 1");
+ }
+};
+const BeforeMain before_main;
+
template <class K, class V>
using Map = flat_hash_map<K, V, StatefulTestingHash, StatefulTestingEqual,
Alloc<std::pair<const K, V>>>;
diff --git a/absl/container/flat_hash_set_test.cc b/absl/container/flat_hash_set_test.cc
index 40d7f85..8f6f994 100644
--- a/absl/container/flat_hash_set_test.cc
+++ b/absl/container/flat_hash_set_test.cc
@@ -16,6 +16,7 @@
#include <vector>
+#include "absl/base/internal/raw_logging.h"
#include "absl/container/internal/hash_generator_testing.h"
#include "absl/container/internal/unordered_set_constructor_test.h"
#include "absl/container/internal/unordered_set_lookup_test.h"
@@ -36,6 +37,17 @@
using ::testing::UnorderedElementsAre;
using ::testing::UnorderedElementsAreArray;
+// Check that absl::flat_hash_set works in a global constructor.
+struct BeforeMain {
+ BeforeMain() {
+ absl::flat_hash_set<int> x;
+ x.insert(1);
+ ABSL_RAW_CHECK(!x.contains(0), "x should not contain 0");
+ ABSL_RAW_CHECK(x.contains(1), "x should contain 1");
+ }
+};
+const BeforeMain before_main;
+
template <class T>
using Set =
absl::flat_hash_set<T, StatefulTestingHash, StatefulTestingEqual, Alloc<T>>;
diff --git a/absl/container/inlined_vector.h b/absl/container/inlined_vector.h
index 5f6f615..f18dd4c 100644
--- a/absl/container/inlined_vector.h
+++ b/absl/container/inlined_vector.h
@@ -351,14 +351,14 @@
// Returns a `reference` to the first element of the inlined vector.
reference front() {
ABSL_HARDENING_ASSERT(!empty());
- return at(0);
+ return data()[0];
}
// Overload of `InlinedVector::front()` that returns a `const_reference` to
// the first element of the inlined vector.
const_reference front() const {
ABSL_HARDENING_ASSERT(!empty());
- return at(0);
+ return data()[0];
}
// `InlinedVector::back()`
@@ -366,14 +366,14 @@
// Returns a `reference` to the last element of the inlined vector.
reference back() {
ABSL_HARDENING_ASSERT(!empty());
- return at(size() - 1);
+ return data()[size() - 1];
}
// Overload of `InlinedVector::back()` that returns a `const_reference` to the
// last element of the inlined vector.
const_reference back() const {
ABSL_HARDENING_ASSERT(!empty());
- return at(size() - 1);
+ return data()[size() - 1];
}
// `InlinedVector::begin()`
@@ -524,7 +524,7 @@
void assign(InputIterator first, InputIterator last) {
size_type i = 0;
for (; i < size() && first != last; ++i, static_cast<void>(++first)) {
- at(i) = *first;
+ data()[i] = *first;
}
erase(data() + i, data() + size());
@@ -535,9 +535,12 @@
//
// Resizes the inlined vector to contain `n` elements.
//
- // NOTE: if `n` is smaller than `size()`, extra elements are destroyed. If `n`
+ // NOTE: If `n` is smaller than `size()`, extra elements are destroyed. If `n`
// is larger than `size()`, new elements are value-initialized.
- void resize(size_type n) { storage_.Resize(DefaultValueAdapter(), n); }
+ void resize(size_type n) {
+ ABSL_HARDENING_ASSERT(n <= max_size());
+ storage_.Resize(DefaultValueAdapter(), n);
+ }
// Overload of `InlinedVector::resize(...)` that resizes the inlined vector to
// contain `n` elements.
@@ -545,6 +548,7 @@
// NOTE: if `n` is smaller than `size()`, extra elements are destroyed. If `n`
// is larger than `size()`, new elements are copied-constructed from `v`.
void resize(size_type n, const_reference v) {
+ ABSL_HARDENING_ASSERT(n <= max_size());
storage_.Resize(CopyValueAdapter(v), n);
}
diff --git a/absl/container/internal/btree.h b/absl/container/internal/btree.h
index 4504e9c..b23138f 100644
--- a/absl/container/internal/btree.h
+++ b/absl/container/internal/btree.h
@@ -929,9 +929,15 @@
void decrement_slow();
public:
+ bool operator==(const iterator &other) const {
+ return node == other.node && position == other.position;
+ }
bool operator==(const const_iterator &other) const {
return node == other.node && position == other.position;
}
+ bool operator!=(const iterator &other) const {
+ return node != other.node || position != other.position;
+ }
bool operator!=(const const_iterator &other) const {
return node != other.node || position != other.position;
}
diff --git a/absl/container/internal/counting_allocator.h b/absl/container/internal/counting_allocator.h
index 9efdc66..927cf08 100644
--- a/absl/container/internal/counting_allocator.h
+++ b/absl/container/internal/counting_allocator.h
@@ -15,7 +15,6 @@
#ifndef ABSL_CONTAINER_INTERNAL_COUNTING_ALLOCATOR_H_
#define ABSL_CONTAINER_INTERNAL_COUNTING_ALLOCATOR_H_
-#include <cassert>
#include <cstdint>
#include <memory>
@@ -31,33 +30,63 @@
// containers - that chain of allocators uses the same state and is
// thus easier to query for aggregate allocation information.
template <typename T>
-class CountingAllocator : public std::allocator<T> {
+class CountingAllocator {
public:
- using Alloc = std::allocator<T>;
- using pointer = typename Alloc::pointer;
- using size_type = typename Alloc::size_type;
+ using Allocator = std::allocator<T>;
+ using AllocatorTraits = std::allocator_traits<Allocator>;
+ using value_type = typename AllocatorTraits::value_type;
+ using pointer = typename AllocatorTraits::pointer;
+ using const_pointer = typename AllocatorTraits::const_pointer;
+ using size_type = typename AllocatorTraits::size_type;
+ using difference_type = typename AllocatorTraits::difference_type;
- CountingAllocator() : bytes_used_(nullptr) {}
- explicit CountingAllocator(int64_t* b) : bytes_used_(b) {}
+ CountingAllocator() = default;
+ explicit CountingAllocator(int64_t* bytes_used) : bytes_used_(bytes_used) {}
+ CountingAllocator(int64_t* bytes_used, int64_t* instance_count)
+ : bytes_used_(bytes_used), instance_count_(instance_count) {}
template <typename U>
CountingAllocator(const CountingAllocator<U>& x)
- : Alloc(x), bytes_used_(x.bytes_used_) {}
+ : bytes_used_(x.bytes_used_), instance_count_(x.instance_count_) {}
- pointer allocate(size_type n,
- std::allocator<void>::const_pointer hint = nullptr) {
- assert(bytes_used_ != nullptr);
- *bytes_used_ += n * sizeof(T);
- return Alloc::allocate(n, hint);
+ pointer allocate(
+ size_type n,
+ typename AllocatorTraits::const_void_pointer hint = nullptr) {
+ Allocator allocator;
+ pointer ptr = AllocatorTraits::allocate(allocator, n, hint);
+ if (bytes_used_ != nullptr) {
+ *bytes_used_ += n * sizeof(T);
+ }
+ return ptr;
}
void deallocate(pointer p, size_type n) {
- Alloc::deallocate(p, n);
- assert(bytes_used_ != nullptr);
- *bytes_used_ -= n * sizeof(T);
+ Allocator allocator;
+ AllocatorTraits::deallocate(allocator, p, n);
+ if (bytes_used_ != nullptr) {
+ *bytes_used_ -= n * sizeof(T);
+ }
}
- template<typename U>
+ template <typename U, typename... Args>
+ void construct(U* p, Args&&... args) {
+ Allocator allocator;
+ AllocatorTraits::construct(allocator, p, std::forward<Args>(args)...);
+ if (instance_count_ != nullptr) {
+ *instance_count_ += 1;
+ }
+ }
+
+ template <typename U>
+ void destroy(U* p) {
+ Allocator allocator;
+ AllocatorTraits::destroy(allocator, p);
+ if (instance_count_ != nullptr) {
+ *instance_count_ -= 1;
+ }
+ }
+
+ template <typename U>
class rebind {
public:
using other = CountingAllocator<U>;
@@ -65,7 +94,8 @@
friend bool operator==(const CountingAllocator& a,
const CountingAllocator& b) {
- return a.bytes_used_ == b.bytes_used_;
+ return a.bytes_used_ == b.bytes_used_ &&
+ a.instance_count_ == b.instance_count_;
}
friend bool operator!=(const CountingAllocator& a,
@@ -73,7 +103,8 @@
return !(a == b);
}
- int64_t* bytes_used_;
+ int64_t* bytes_used_ = nullptr;
+ int64_t* instance_count_ = nullptr;
};
} // namespace container_internal
diff --git a/absl/container/internal/hashtablez_sampler.h b/absl/container/internal/hashtablez_sampler.h
index 8aaffc3..308119c 100644
--- a/absl/container/internal/hashtablez_sampler.h
+++ b/absl/container/internal/hashtablez_sampler.h
@@ -184,11 +184,6 @@
#error ABSL_INTERNAL_HASHTABLEZ_SAMPLE cannot be directly set
#endif // defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE)
-#if (ABSL_PER_THREAD_TLS == 1) && !defined(ABSL_BUILD_DLL) && \
- !defined(ABSL_CONSUME_DLL)
-#define ABSL_INTERNAL_HASHTABLEZ_SAMPLE
-#endif
-
#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE)
extern ABSL_PER_THREAD_TLS_KEYWORD int64_t global_next_sample;
#endif // ABSL_PER_THREAD_TLS
diff --git a/absl/container/internal/raw_hash_set.h b/absl/container/internal/raw_hash_set.h
index e47e1fe..df0f2b2 100644
--- a/absl/container/internal/raw_hash_set.h
+++ b/absl/container/internal/raw_hash_set.h
@@ -104,7 +104,7 @@
#include "absl/base/internal/bits.h"
#include "absl/base/internal/endian.h"
-#include "absl/base/macros.h"
+#include "absl/base/optimization.h"
#include "absl/base/port.h"
#include "absl/container/internal/common.h"
#include "absl/container/internal/compressed_tuple.h"
@@ -649,24 +649,26 @@
}
private:
- iterator(ctrl_t* ctrl) : ctrl_(ctrl) {} // for end()
- iterator(ctrl_t* ctrl, slot_type* slot) : ctrl_(ctrl), slot_(slot) {}
+ iterator(ctrl_t* ctrl, slot_type* slot) : ctrl_(ctrl), slot_(slot) {
+ // This assumption helps the compiler know that any non-end iterator is
+ // not equal to any end iterator.
+ ABSL_INTERNAL_ASSUME(ctrl != nullptr);
+ }
- void assert_is_full() const { ABSL_HARDENING_ASSERT(IsFull(*ctrl_)); }
+ void assert_is_full() const {
+ ABSL_HARDENING_ASSERT(ctrl_ != nullptr && IsFull(*ctrl_));
+ }
void assert_is_valid() const {
- ABSL_HARDENING_ASSERT(!ctrl_ || IsFull(*ctrl_) || *ctrl_ == kSentinel);
+ ABSL_HARDENING_ASSERT(ctrl_ == nullptr || IsFull(*ctrl_));
}
void skip_empty_or_deleted() {
while (IsEmptyOrDeleted(*ctrl_)) {
- // ctrl is not necessarily aligned to Group::kWidth. It is also likely
- // to read past the space for ctrl bytes and into slots. This is ok
- // because ctrl has sizeof() == 1 and slot has sizeof() >= 1 so there
- // is no way to read outside the combined slot array.
uint32_t shift = Group{ctrl_}.CountLeadingEmptyOrDeleted();
ctrl_ += shift;
slot_ += shift;
}
+ if (ABSL_PREDICT_FALSE(*ctrl_ == kSentinel)) ctrl_ = nullptr;
}
ctrl_t* ctrl_ = nullptr;
@@ -908,12 +910,12 @@
it.skip_empty_or_deleted();
return it;
}
- iterator end() { return {ctrl_ + capacity_}; }
+ iterator end() { return {}; }
const_iterator begin() const {
return const_cast<raw_hash_set*>(this)->begin();
}
- const_iterator end() const { return const_cast<raw_hash_set*>(this)->end(); }
+ const_iterator end() const { return {}; }
const_iterator cbegin() const { return begin(); }
const_iterator cend() const { return end(); }
diff --git a/absl/copts/AbseilConfigureCopts.cmake b/absl/copts/AbseilConfigureCopts.cmake
index 9557e36..acd46d0 100644
--- a/absl/copts/AbseilConfigureCopts.cmake
+++ b/absl/copts/AbseilConfigureCopts.cmake
@@ -12,7 +12,7 @@
set(ABSL_BUILD_DLL FALSE)
endif()
-if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "AMD64")
+if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "x86_64|amd64|AMD64")
if (MSVC)
set(ABSL_RANDOM_RANDEN_COPTS "${ABSL_RANDOM_HWAES_MSVC_X64_FLAGS}")
else()
diff --git a/absl/debugging/failure_signal_handler_test.cc b/absl/debugging/failure_signal_handler_test.cc
index 863fb51..d8283b2 100644
--- a/absl/debugging/failure_signal_handler_test.cc
+++ b/absl/debugging/failure_signal_handler_test.cc
@@ -55,7 +55,7 @@
exit_regex);
#else
// Windows doesn't have testing::KilledBySignal().
- EXPECT_DEATH(InstallHandlerAndRaise(signo), exit_regex);
+ EXPECT_DEATH_IF_SUPPORTED(InstallHandlerAndRaise(signo), exit_regex);
#endif
}
@@ -107,8 +107,8 @@
testing::KilledBySignal(signo), exit_regex);
#else
// Windows doesn't have testing::KilledBySignal().
- EXPECT_DEATH(InstallHandlerWithWriteToFileAndRaise(file.c_str(), signo),
- exit_regex);
+ EXPECT_DEATH_IF_SUPPORTED(
+ InstallHandlerWithWriteToFileAndRaise(file.c_str(), signo), exit_regex);
#endif
// Open the file in this process and check its contents.
diff --git a/absl/flags/BUILD.bazel b/absl/flags/BUILD.bazel
index 4b51d9d..685e395 100644
--- a/absl/flags/BUILD.bazel
+++ b/absl/flags/BUILD.bazel
@@ -326,7 +326,9 @@
":handle",
":registry",
"//absl/base:core_headers",
+ "//absl/base:malloc_internal",
"//absl/strings",
+ "//absl/time",
"@com_google_googletest//:gtest_main",
],
)
diff --git a/absl/flags/CMakeLists.txt b/absl/flags/CMakeLists.txt
index 2204b0f..ec82ee1 100644
--- a/absl/flags/CMakeLists.txt
+++ b/absl/flags/CMakeLists.txt
@@ -304,6 +304,7 @@
absl::flags_internal
absl::flags_registry
absl::strings
+ absl::time
gtest_main
)
diff --git a/absl/flags/flag.h b/absl/flags/flag.h
index bb91765..194a9d3 100644
--- a/absl/flags/flag.h
+++ b/absl/flags/flag.h
@@ -149,9 +149,6 @@
}
T Get() const { return GetImpl()->Get(); }
void Set(const T& v) { GetImpl()->Set(v); }
- void SetCallback(const flags_internal::FlagCallbackFunc mutation_callback) {
- GetImpl()->SetCallback(mutation_callback);
- }
void InvokeCallback() { GetImpl()->InvokeCallback(); }
// The data members are logically private, but they need to be public for
@@ -314,9 +311,9 @@
static std::string NonConst() { return ABSL_FLAG_IMPL_FLAGHELP(txt); } \
}
-#define ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value) \
- static void* AbslFlagsInitFlag##name() { \
- return absl::flags_internal::MakeFromDefaultValue<Type>(default_value); \
+#define ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value) \
+ static void AbslFlagsInitFlag##name(void* dst) { \
+ absl::flags_internal::MakeFromDefaultValue<Type>(dst, default_value); \
}
// ABSL_FLAG_IMPL
@@ -333,8 +330,9 @@
ABSL_FLAG_IMPL_FLAGNAME(#name), ABSL_FLAG_IMPL_FILENAME(), \
absl::flags_internal::HelpArg<AbslFlagHelpGenFor##name>(0), \
&AbslFlagsInitFlag##name}; \
- extern bool FLAGS_no##name; \
- bool FLAGS_no##name = ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name)
+ extern absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name; \
+ absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name = \
+ ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name)
#else
// MSVC version uses aggregate initialization. We also do not try to
// optimize away help wrapper.
@@ -345,8 +343,9 @@
ABSL_CONST_INIT absl::Flag<Type> FLAGS_##name{ \
ABSL_FLAG_IMPL_FLAGNAME(#name), ABSL_FLAG_IMPL_FILENAME(), \
&AbslFlagHelpGenFor##name::NonConst, &AbslFlagsInitFlag##name}; \
- extern bool FLAGS_no##name; \
- bool FLAGS_no##name = ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name)
+ extern absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name; \
+ absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name = \
+ ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name)
#endif
// ABSL_RETIRED_FLAG
diff --git a/absl/flags/flag_test.cc b/absl/flags/flag_test.cc
index 377e3b2..6fa178f 100644
--- a/absl/flags/flag_test.cc
+++ b/absl/flags/flag_test.cc
@@ -19,6 +19,7 @@
#include <cmath>
#include <string>
+#include <thread> // NOLINT
#include <vector>
#include "gtest/gtest.h"
@@ -34,6 +35,7 @@
#include "absl/strings/str_cat.h"
#include "absl/strings/str_split.h"
#include "absl/strings/string_view.h"
+#include "absl/time/time.h"
ABSL_DECLARE_FLAG(int64_t, mistyped_int_flag);
ABSL_DECLARE_FLAG(std::vector<std::string>, mistyped_string_flag);
@@ -44,8 +46,8 @@
std::string TestHelpMsg() { return "dynamic help"; }
template <typename T>
-void* TestMakeDflt() {
- return new T{};
+void TestMakeDflt(void* dst) {
+ new (dst) T{};
}
void TestCallback() {}
@@ -74,6 +76,7 @@
#endif
return std::string(fname);
}
+ flags::FlagSaver flag_saver_;
};
struct S1 {
@@ -107,15 +110,15 @@
flags::FlagValueStorageKind::kTwoWordsAtomic);
#else
EXPECT_EQ(flags::StorageKind<S1>(),
- flags::FlagValueStorageKind::kHeapAllocated);
+ flags::FlagValueStorageKind::kAlignedBuffer);
EXPECT_EQ(flags::StorageKind<S2>(),
- flags::FlagValueStorageKind::kHeapAllocated);
+ flags::FlagValueStorageKind::kAlignedBuffer);
#endif
EXPECT_EQ(flags::StorageKind<std::string>(),
- flags::FlagValueStorageKind::kHeapAllocated);
+ flags::FlagValueStorageKind::kAlignedBuffer);
EXPECT_EQ(flags::StorageKind<std::vector<std::string>>(),
- flags::FlagValueStorageKind::kHeapAllocated);
+ flags::FlagValueStorageKind::kAlignedBuffer);
}
// --------------------------------------------------------------------
@@ -190,6 +193,7 @@
ABSL_DECLARE_FLAG(double, test_flag_09);
ABSL_DECLARE_FLAG(float, test_flag_10);
ABSL_DECLARE_FLAG(std::string, test_flag_11);
+ABSL_DECLARE_FLAG(absl::Duration, test_flag_12);
namespace {
@@ -208,6 +212,7 @@
EXPECT_EQ(FLAGS_test_flag_09.Name(), "test_flag_09");
EXPECT_EQ(FLAGS_test_flag_10.Name(), "test_flag_10");
EXPECT_EQ(FLAGS_test_flag_11.Name(), "test_flag_11");
+ EXPECT_EQ(FLAGS_test_flag_12.Name(), "test_flag_12");
}
#endif // !ABSL_FLAGS_STRIP_NAMES
@@ -226,6 +231,7 @@
ABSL_FLAG(double, test_flag_09, -9.876e-50, "test flag 09");
ABSL_FLAG(float, test_flag_10, 1.234e12f, "test flag 10");
ABSL_FLAG(std::string, test_flag_11, "", "test flag 11");
+ABSL_FLAG(absl::Duration, test_flag_12, absl::Minutes(10), "test flag 12");
namespace {
@@ -287,6 +293,11 @@
EXPECT_EQ(FLAGS_test_flag_11.Help(), "test flag 11");
EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_11.Filename(), expected_file_name))
<< FLAGS_test_flag_11.Filename();
+
+ EXPECT_EQ(FLAGS_test_flag_12.Name(), "test_flag_12");
+ EXPECT_EQ(FLAGS_test_flag_12.Help(), "test flag 12");
+ EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_12.Filename(), expected_file_name))
+ << FLAGS_test_flag_12.Filename();
}
#endif // !ABSL_FLAGS_STRIP_NAMES
@@ -304,6 +315,20 @@
EXPECT_EQ(FLAGS_test_flag_09.DefaultValue(), "-9.876e-50");
EXPECT_EQ(FLAGS_test_flag_10.DefaultValue(), "1.234e+12");
EXPECT_EQ(FLAGS_test_flag_11.DefaultValue(), "");
+ EXPECT_EQ(FLAGS_test_flag_12.DefaultValue(), "10m");
+
+ EXPECT_EQ(FLAGS_test_flag_01.CurrentValue(), "true");
+ EXPECT_EQ(FLAGS_test_flag_02.CurrentValue(), "1234");
+ EXPECT_EQ(FLAGS_test_flag_03.CurrentValue(), "-34");
+ EXPECT_EQ(FLAGS_test_flag_04.CurrentValue(), "189");
+ EXPECT_EQ(FLAGS_test_flag_05.CurrentValue(), "10765");
+ EXPECT_EQ(FLAGS_test_flag_06.CurrentValue(), "40000");
+ EXPECT_EQ(FLAGS_test_flag_07.CurrentValue(), "-1234567");
+ EXPECT_EQ(FLAGS_test_flag_08.CurrentValue(), "9876543");
+ EXPECT_EQ(FLAGS_test_flag_09.CurrentValue(), "-9.876e-50");
+ EXPECT_EQ(FLAGS_test_flag_10.CurrentValue(), "1.234e+12");
+ EXPECT_EQ(FLAGS_test_flag_11.CurrentValue(), "");
+ EXPECT_EQ(FLAGS_test_flag_12.CurrentValue(), "10m");
EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_01), true);
EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_02), 1234);
@@ -316,6 +341,7 @@
EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_09), -9.876e-50, 1e-55);
EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_10), 1.234e12f, 1e5f);
EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_11), "");
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), absl::Minutes(10));
}
// --------------------------------------------------------------------
@@ -408,6 +434,38 @@
absl::SetFlag(&FLAGS_test_flag_11, "asdf");
EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_11), "asdf");
+
+ absl::SetFlag(&FLAGS_test_flag_12, absl::Seconds(110));
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), absl::Seconds(110));
+}
+
+// --------------------------------------------------------------------
+
+TEST_F(FlagTest, TestGetViaReflection) {
+ auto* handle = flags::FindCommandLineFlag("test_flag_01");
+ EXPECT_EQ(*handle->Get<bool>(), true);
+ handle = flags::FindCommandLineFlag("test_flag_02");
+ EXPECT_EQ(*handle->Get<int>(), 1234);
+ handle = flags::FindCommandLineFlag("test_flag_03");
+ EXPECT_EQ(*handle->Get<int16_t>(), -34);
+ handle = flags::FindCommandLineFlag("test_flag_04");
+ EXPECT_EQ(*handle->Get<uint16_t>(), 189);
+ handle = flags::FindCommandLineFlag("test_flag_05");
+ EXPECT_EQ(*handle->Get<int32_t>(), 10765);
+ handle = flags::FindCommandLineFlag("test_flag_06");
+ EXPECT_EQ(*handle->Get<uint32_t>(), 40000);
+ handle = flags::FindCommandLineFlag("test_flag_07");
+ EXPECT_EQ(*handle->Get<int64_t>(), -1234567);
+ handle = flags::FindCommandLineFlag("test_flag_08");
+ EXPECT_EQ(*handle->Get<uint64_t>(), 9876543);
+ handle = flags::FindCommandLineFlag("test_flag_09");
+ EXPECT_NEAR(*handle->Get<double>(), -9.876e-50, 1e-55);
+ handle = flags::FindCommandLineFlag("test_flag_10");
+ EXPECT_NEAR(*handle->Get<float>(), 1.234e12f, 1e5f);
+ handle = flags::FindCommandLineFlag("test_flag_11");
+ EXPECT_EQ(*handle->Get<std::string>(), "");
+ handle = flags::FindCommandLineFlag("test_flag_12");
+ EXPECT_EQ(*handle->Get<absl::Duration>(), absl::Minutes(10));
}
// --------------------------------------------------------------------
@@ -416,28 +474,32 @@
} // namespace
-ABSL_FLAG(int, test_flag_12, GetDflt1(), "test flag 12");
-ABSL_FLAG(std::string, test_flag_13, absl::StrCat("AAA", "BBB"),
- "test flag 13");
+ABSL_FLAG(int, test_int_flag_with_non_const_default, GetDflt1(),
+ "test int flag non const default");
+ABSL_FLAG(std::string, test_string_flag_with_non_const_default,
+ absl::StrCat("AAA", "BBB"), "test string flag non const default");
namespace {
TEST_F(FlagTest, TestNonConstexprDefault) {
- EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), 1);
- EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_13), "AAABBB");
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_int_flag_with_non_const_default), 1);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_string_flag_with_non_const_default),
+ "AAABBB");
}
// --------------------------------------------------------------------
} // namespace
-ABSL_FLAG(bool, test_flag_14, true, absl::StrCat("test ", "flag ", "14"));
+ABSL_FLAG(bool, test_flag_with_non_const_help, true,
+ absl::StrCat("test ", "flag ", "non const help"));
namespace {
#if !ABSL_FLAGS_STRIP_HELP
TEST_F(FlagTest, TestNonConstexprHelp) {
- EXPECT_EQ(FLAGS_test_flag_14.Help(), "test flag 14");
+ EXPECT_EQ(FLAGS_test_flag_with_non_const_help.Help(),
+ "test flag non const help");
}
#endif //! ABSL_FLAGS_STRIP_HELP
@@ -503,14 +565,14 @@
} // namespace
-ABSL_FLAG(CustomUDT, test_flag_15, CustomUDT(), "test flag 15");
+ABSL_FLAG(CustomUDT, test_flag_custom_udt, CustomUDT(), "test flag custom UDT");
namespace {
TEST_F(FlagTest, TestCustomUDT) {
- EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_15), CustomUDT(1, 1));
- absl::SetFlag(&FLAGS_test_flag_15, CustomUDT(2, 3));
- EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_15), CustomUDT(2, 3));
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_custom_udt), CustomUDT(1, 1));
+ absl::SetFlag(&FLAGS_test_flag_custom_udt, CustomUDT(2, 3));
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_custom_udt), CustomUDT(2, 3));
}
// MSVC produces link error on the type mismatch.
@@ -521,18 +583,21 @@
TEST_F(FlagDeathTest, TestTypeMismatchValidations) {
#if !defined(NDEBUG)
- EXPECT_DEATH(static_cast<void>(absl::GetFlag(FLAGS_mistyped_int_flag)),
- "Flag 'mistyped_int_flag' is defined as one type and declared "
- "as another");
- EXPECT_DEATH(static_cast<void>(absl::GetFlag(FLAGS_mistyped_string_flag)),
- "Flag 'mistyped_string_flag' is defined as one type and "
- "declared as another");
+ EXPECT_DEATH_IF_SUPPORTED(
+ static_cast<void>(absl::GetFlag(FLAGS_mistyped_int_flag)),
+ "Flag 'mistyped_int_flag' is defined as one type and declared "
+ "as another");
+ EXPECT_DEATH_IF_SUPPORTED(
+ static_cast<void>(absl::GetFlag(FLAGS_mistyped_string_flag)),
+ "Flag 'mistyped_string_flag' is defined as one type and "
+ "declared as another");
#endif
- EXPECT_DEATH(absl::SetFlag(&FLAGS_mistyped_int_flag, 1),
- "Flag 'mistyped_int_flag' is defined as one type and declared "
- "as another");
- EXPECT_DEATH(
+ EXPECT_DEATH_IF_SUPPORTED(
+ absl::SetFlag(&FLAGS_mistyped_int_flag, 1),
+ "Flag 'mistyped_int_flag' is defined as one type and declared "
+ "as another");
+ EXPECT_DEATH_IF_SUPPORTED(
absl::SetFlag(&FLAGS_mistyped_string_flag, std::vector<std::string>{}),
"Flag 'mistyped_string_flag' is defined as one type and declared as "
"another");
@@ -570,16 +635,17 @@
// Flag default values can be specified with a value that converts to the flag
// value type implicitly.
-ABSL_FLAG(ConversionTestVal, test_flag_16,
- ConversionTestVal::ViaImplicitConv::kTen, "test flag 16");
+ABSL_FLAG(ConversionTestVal, test_flag_implicit_conv,
+ ConversionTestVal::ViaImplicitConv::kTen,
+ "test flag init via implicit conversion");
namespace {
TEST_F(FlagTest, CanSetViaImplicitConversion) {
- EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_16).a, 10);
- absl::SetFlag(&FLAGS_test_flag_16,
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_implicit_conv).a, 10);
+ absl::SetFlag(&FLAGS_test_flag_implicit_conv,
ConversionTestVal::ViaImplicitConv::kEleven);
- EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_16).a, 11);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_implicit_conv).a, 11);
}
// --------------------------------------------------------------------
@@ -646,3 +712,69 @@
}
} // namespace
+
+// --------------------------------------------------------------------
+
+namespace {
+
+// User-defined type with small alignment, but size exceeding 16.
+struct SmallAlignUDT {
+ SmallAlignUDT() : c('A'), s(12) {}
+ char c;
+ int16_t s;
+ char bytes[14];
+};
+
+bool AbslParseFlag(absl::string_view, SmallAlignUDT*, std::string*) {
+ return true;
+}
+std::string AbslUnparseFlag(const SmallAlignUDT&) { return ""; }
+
+// User-defined type with small size, but not trivially copyable.
+struct NonTriviallyCopyableUDT {
+ NonTriviallyCopyableUDT() : c('A') {}
+ NonTriviallyCopyableUDT(const NonTriviallyCopyableUDT& rhs) : c(rhs.c) {}
+ NonTriviallyCopyableUDT& operator=(const NonTriviallyCopyableUDT& rhs) {
+ c = rhs.c;
+ return *this;
+ }
+
+ char c;
+};
+
+bool AbslParseFlag(absl::string_view, NonTriviallyCopyableUDT*, std::string*) {
+ return true;
+}
+std::string AbslUnparseFlag(const NonTriviallyCopyableUDT&) { return ""; }
+
+} // namespace
+
+ABSL_FLAG(SmallAlignUDT, test_flag_sa_udt, {}, "help");
+ABSL_FLAG(NonTriviallyCopyableUDT, test_flag_ntc_udt, {}, "help");
+
+namespace {
+
+TEST_F(FlagTest, TestSmallAlignUDT) {
+ SmallAlignUDT value = absl::GetFlag(FLAGS_test_flag_sa_udt);
+ EXPECT_EQ(value.c, 'A');
+ EXPECT_EQ(value.s, 12);
+
+ value.c = 'B';
+ value.s = 45;
+ absl::SetFlag(&FLAGS_test_flag_sa_udt, value);
+ value = absl::GetFlag(FLAGS_test_flag_sa_udt);
+ EXPECT_EQ(value.c, 'B');
+ EXPECT_EQ(value.s, 45);
+}
+
+TEST_F(FlagTest, TestNonTriviallyCopyableUDT) {
+ NonTriviallyCopyableUDT value = absl::GetFlag(FLAGS_test_flag_ntc_udt);
+ EXPECT_EQ(value.c, 'A');
+
+ value.c = 'B';
+ absl::SetFlag(&FLAGS_test_flag_ntc_udt, value);
+ value = absl::GetFlag(FLAGS_test_flag_ntc_udt);
+ EXPECT_EQ(value.c, 'B');
+}
+
+} // namespace
diff --git a/absl/flags/internal/flag.cc b/absl/flags/internal/flag.cc
index f3c424a..089567f 100644
--- a/absl/flags/internal/flag.cc
+++ b/absl/flags/internal/flag.cc
@@ -92,9 +92,9 @@
counter_(counter) {}
~FlagState() override {
- if (flag_impl_->ValueStorageKind() != FlagValueStorageKind::kHeapAllocated)
+ if (flag_impl_->ValueStorageKind() != FlagValueStorageKind::kAlignedBuffer)
return;
- flags_internal::Delete(flag_impl_->op_, value_.dynamic);
+ flags_internal::Delete(flag_impl_->op_, value_.heap_allocated);
}
private:
@@ -112,11 +112,11 @@
// Flag and saved flag data.
FlagImpl* flag_impl_;
union SavedValue {
- explicit SavedValue(void* v) : dynamic(v) {}
+ explicit SavedValue(void* v) : heap_allocated(v) {}
explicit SavedValue(int64_t v) : one_word(v) {}
explicit SavedValue(flags_internal::AlignedTwoWords v) : two_words(v) {}
- void* dynamic;
+ void* heap_allocated;
int64_t one_word;
flags_internal::AlignedTwoWords two_words;
} value_;
@@ -128,25 +128,33 @@
///////////////////////////////////////////////////////////////////////////////
// Flag implementation, which does not depend on flag value type.
+DynValueDeleter::DynValueDeleter(FlagOpFn op_arg) : op(op_arg) {}
+
+void DynValueDeleter::operator()(void* ptr) const {
+ if (op == nullptr) return;
+
+ Delete(op, ptr);
+}
+
void FlagImpl::Init() {
new (&data_guard_) absl::Mutex;
// At this point the default_value_ always points to gen_func.
- std::unique_ptr<void, DynValueDeleter> init_value(
- (*default_value_.gen_func)(), DynValueDeleter{op_});
switch (ValueStorageKind()) {
- case FlagValueStorageKind::kHeapAllocated:
- HeapAllocatedValue() = init_value.release();
+ case FlagValueStorageKind::kAlignedBuffer:
+ (*default_value_.gen_func)(AlignedBufferValue());
break;
case FlagValueStorageKind::kOneWordAtomic: {
- int64_t atomic_value;
- std::memcpy(&atomic_value, init_value.get(), Sizeof(op_));
- OneWordValue().store(atomic_value, std::memory_order_release);
+ alignas(int64_t) std::array<char, sizeof(int64_t)> buf{};
+ (*default_value_.gen_func)(buf.data());
+ auto value = absl::bit_cast<int64_t>(buf);
+ OneWordValue().store(value, std::memory_order_release);
break;
}
case FlagValueStorageKind::kTwoWordsAtomic: {
- AlignedTwoWords atomic_value{0, 0};
- std::memcpy(&atomic_value, init_value.get(), Sizeof(op_));
+ alignas(AlignedTwoWords) std::array<char, sizeof(AlignedTwoWords)> buf{};
+ (*default_value_.gen_func)(buf.data());
+ auto atomic_value = absl::bit_cast<AlignedTwoWords>(buf);
TwoWordsValue().store(atomic_value, std::memory_order_release);
break;
}
@@ -191,15 +199,16 @@
if (DefaultKind() == FlagDefaultKind::kDynamicValue) {
res = flags_internal::Clone(op_, default_value_.dynamic_value);
} else {
- res = (*default_value_.gen_func)();
+ res = flags_internal::Alloc(op_);
+ (*default_value_.gen_func)(res);
}
return {res, DynValueDeleter{op_}};
}
void FlagImpl::StoreValue(const void* src) {
switch (ValueStorageKind()) {
- case FlagValueStorageKind::kHeapAllocated:
- Copy(op_, src, HeapAllocatedValue());
+ case FlagValueStorageKind::kAlignedBuffer:
+ Copy(op_, src, AlignedBufferValue());
break;
case FlagValueStorageKind::kOneWordAtomic: {
int64_t one_word_val = 0;
@@ -257,9 +266,9 @@
std::string FlagImpl::CurrentValue() const {
auto* guard = DataGuard(); // Make sure flag initialized
switch (ValueStorageKind()) {
- case FlagValueStorageKind::kHeapAllocated: {
+ case FlagValueStorageKind::kAlignedBuffer: {
absl::MutexLock l(guard);
- return flags_internal::Unparse(op_, HeapAllocatedValue());
+ return flags_internal::Unparse(op_, AlignedBufferValue());
}
case FlagValueStorageKind::kOneWordAtomic: {
const auto one_word_val =
@@ -318,9 +327,9 @@
bool modified = modified_;
bool on_command_line = on_command_line_;
switch (ValueStorageKind()) {
- case FlagValueStorageKind::kHeapAllocated: {
+ case FlagValueStorageKind::kAlignedBuffer: {
return absl::make_unique<FlagState>(
- this, flags_internal::Clone(op_, HeapAllocatedValue()), modified,
+ this, flags_internal::Clone(op_, AlignedBufferValue()), modified,
on_command_line, counter_);
}
case FlagValueStorageKind::kOneWordAtomic: {
@@ -345,8 +354,8 @@
}
switch (ValueStorageKind()) {
- case FlagValueStorageKind::kHeapAllocated:
- StoreValue(flag_state.value_.dynamic);
+ case FlagValueStorageKind::kAlignedBuffer:
+ StoreValue(flag_state.value_.heap_allocated);
break;
case FlagValueStorageKind::kOneWordAtomic:
StoreValue(&flag_state.value_.one_word);
@@ -363,25 +372,27 @@
}
template <typename StorageT>
-typename StorageT::value_type& FlagImpl::OffsetValue() const {
+StorageT* FlagImpl::OffsetValue() const {
char* p = reinterpret_cast<char*>(const_cast<FlagImpl*>(this));
// The offset is deduced via Flag value type specific op_.
size_t offset = flags_internal::ValueOffset(op_);
- return reinterpret_cast<StorageT*>(p + offset)->value;
+ return reinterpret_cast<StorageT*>(p + offset);
}
-void*& FlagImpl::HeapAllocatedValue() const {
- assert(ValueStorageKind() == FlagValueStorageKind::kHeapAllocated);
- return OffsetValue<FlagHeapAllocatedValue>();
+void* FlagImpl::AlignedBufferValue() const {
+ assert(ValueStorageKind() == FlagValueStorageKind::kAlignedBuffer);
+ return OffsetValue<void>();
}
+
std::atomic<int64_t>& FlagImpl::OneWordValue() const {
assert(ValueStorageKind() == FlagValueStorageKind::kOneWordAtomic);
- return OffsetValue<FlagOneWordValue>();
+ return OffsetValue<FlagOneWordValue>()->value;
}
+
std::atomic<AlignedTwoWords>& FlagImpl::TwoWordsValue() const {
assert(ValueStorageKind() == FlagValueStorageKind::kTwoWordsAtomic);
- return OffsetValue<FlagTwoWordsValue>();
+ return OffsetValue<FlagTwoWordsValue>()->value;
}
// Attempts to parse supplied `value` string using parsing routine in the `flag`
@@ -406,9 +417,9 @@
void FlagImpl::Read(void* dst) const {
auto* guard = DataGuard(); // Make sure flag initialized
switch (ValueStorageKind()) {
- case FlagValueStorageKind::kHeapAllocated: {
+ case FlagValueStorageKind::kAlignedBuffer: {
absl::MutexLock l(guard);
- flags_internal::CopyConstruct(op_, HeapAllocatedValue(), dst);
+ flags_internal::CopyConstruct(op_, AlignedBufferValue(), dst);
break;
}
case FlagValueStorageKind::kOneWordAtomic: {
diff --git a/absl/flags/internal/flag.h b/absl/flags/internal/flag.h
index c1bf865..6da25aa 100644
--- a/absl/flags/internal/flag.h
+++ b/absl/flags/internal/flag.h
@@ -46,8 +46,8 @@
// by function specific to that type with a signature matching FlagOpFn.
enum class FlagOp {
+ kAlloc,
kDelete,
- kClone,
kCopy,
kCopyConstruct,
kSizeof,
@@ -63,13 +63,13 @@
template <typename T>
void* FlagOps(FlagOp op, const void* v1, void* v2, void* v3);
-// Deletes memory interpreting obj as flag value type pointer.
-inline void Delete(FlagOpFn op, const void* obj) {
- op(FlagOp::kDelete, obj, nullptr, nullptr);
+// Allocate aligned memory for a flag value.
+inline void* Alloc(FlagOpFn op) {
+ return op(FlagOp::kAlloc, nullptr, nullptr, nullptr);
}
-// Makes a copy of flag value pointed by obj.
-inline void* Clone(FlagOpFn op, const void* obj) {
- return op(FlagOp::kClone, obj, nullptr, nullptr);
+// Deletes memory interpreting obj as flag value type pointer.
+inline void Delete(FlagOpFn op, void* obj) {
+ op(FlagOp::kDelete, nullptr, obj, nullptr);
}
// Copies src to dst interpreting as flag value type pointers.
inline void Copy(FlagOpFn op, const void* src, void* dst) {
@@ -80,6 +80,12 @@
inline void CopyConstruct(FlagOpFn op, const void* src, void* dst) {
op(FlagOp::kCopyConstruct, src, dst, nullptr);
}
+// Makes a copy of flag value pointed by obj.
+inline void* Clone(FlagOpFn op, const void* obj) {
+ void* res = flags_internal::Alloc(op);
+ flags_internal::CopyConstruct(op, obj, res);
+ return res;
+}
// Returns true if parsing of input text is successfull.
inline bool Parse(FlagOpFn op, absl::string_view text, void* dst,
std::string* error) {
@@ -195,7 +201,7 @@
// Signature for the function generating the initial flag value (usually
// based on default value supplied in flag's definition)
-using FlagDfltGenFunc = void* (*)();
+using FlagDfltGenFunc = void (*)(void*);
union FlagDefaultSrc {
constexpr explicit FlagDefaultSrc(FlagDfltGenFunc gen_func_arg)
@@ -253,46 +259,36 @@
#endif
template <typename T>
-using FlagUseHeapStorage =
+using FlagUseBufferStorage =
std::integral_constant<bool, !FlagUseOneWordStorage<T>::value &&
!FlagUseTwoWordsStorage<T>::value>;
enum class FlagValueStorageKind : uint8_t {
- kHeapAllocated = 0,
+ kAlignedBuffer = 0,
kOneWordAtomic = 1,
kTwoWordsAtomic = 2
};
template <typename T>
static constexpr FlagValueStorageKind StorageKind() {
- return FlagUseHeapStorage<T>::value
- ? FlagValueStorageKind::kHeapAllocated
+ return FlagUseBufferStorage<T>::value
+ ? FlagValueStorageKind::kAlignedBuffer
: FlagUseOneWordStorage<T>::value
? FlagValueStorageKind::kOneWordAtomic
- : FlagUseTwoWordsStorage<T>::value
- ? FlagValueStorageKind::kTwoWordsAtomic
- : FlagValueStorageKind::kHeapAllocated;
+ : FlagValueStorageKind::kTwoWordsAtomic;
}
-struct FlagHeapAllocatedValue {
- using value_type = void*;
-
- value_type value;
-};
-
struct FlagOneWordValue {
- using value_type = std::atomic<int64_t>;
constexpr FlagOneWordValue() : value(UninitializedFlagValue()) {}
- value_type value;
+ std::atomic<int64_t> value;
};
struct FlagTwoWordsValue {
- using value_type = std::atomic<AlignedTwoWords>;
constexpr FlagTwoWordsValue()
: value(AlignedTwoWords{UninitializedFlagValue(), 0}) {}
- value_type value;
+ std::atomic<AlignedTwoWords> value;
};
template <typename T,
@@ -300,9 +296,10 @@
struct FlagValue;
template <typename T>
-struct FlagValue<T, FlagValueStorageKind::kHeapAllocated>
- : FlagHeapAllocatedValue {
+struct FlagValue<T, FlagValueStorageKind::kAlignedBuffer> {
bool Get(T*) const { return false; }
+
+ alignas(T) char value[sizeof(T)];
};
template <typename T>
@@ -347,10 +344,8 @@
// The class encapsulates the Flag's data and access to it.
struct DynValueDeleter {
- explicit DynValueDeleter(FlagOpFn op_arg = nullptr) : op(op_arg) {}
- void operator()(void* ptr) const {
- if (op != nullptr) flags_internal::Delete(op, ptr);
- }
+ explicit DynValueDeleter(FlagOpFn op_arg = nullptr);
+ void operator()(void* ptr) const;
FlagOpFn op;
};
@@ -416,10 +411,10 @@
// it is only used inside the three routines below, which are defined in
// flag.cc, we can define it in that file as well.
template <typename StorageT>
- typename StorageT::value_type& OffsetValue() const;
- // This is an accessor for a value stored in heap allocated storage.
- // Returns a mutable reference to a pointer to allow vlaue mutation.
- void*& HeapAllocatedValue() const;
+ StorageT* OffsetValue() const;
+ // This is an accessor for a value stored in an aligned buffer storage.
+ // Returns a mutable pointer to the start of a buffer.
+ void* AlignedBufferValue() const;
// This is an accessor for a value stored as one word atomic. Returns a
// mutable reference to an atomic value.
std::atomic<int64_t>& OneWordValue() const;
@@ -492,17 +487,8 @@
// Kind of storage this flag is using for the flag's value.
const uint8_t value_storage_kind_ : 2;
- // ------------------------------------------------------------------------
- // The bytes containing the const bitfields must not be shared with bytes
- // containing the mutable bitfields.
- // ------------------------------------------------------------------------
-
- // Unique tag for absl::call_once call to initialize this flag.
- //
- // The placement of this variable between the immutable and mutable bitfields
- // is important as prevents them from occupying the same byte. If you remove
- // this variable, make sure to maintain this property.
- absl::once_flag init_control_;
+ uint8_t : 0; // The bytes containing the const bitfields must not be
+ // shared with bytes containing the mutable bitfields.
// Mutable flag's state (guarded by `data_guard_`).
@@ -514,6 +500,9 @@
// Has this flag been specified on command line.
bool on_command_line_ : 1 ABSL_GUARDED_BY(*DataGuard());
+ // Unique tag for absl::call_once call to initialize this flag.
+ absl::once_flag init_control_;
+
// Mutation counter
int64_t counter_ ABSL_GUARDED_BY(*DataGuard());
// Optional flag's callback and absl::Mutex to guard the invocations.
@@ -567,9 +556,6 @@
impl_.AssertValidType(base_internal::FastTypeId<T>(), &GenRuntimeTypeId<T>);
impl_.Write(&v);
}
- void SetCallback(const FlagCallbackFunc mutation_callback) {
- impl_.SetCallback(mutation_callback);
- }
// CommandLineFlag interface
absl::string_view Name() const { return impl_.Name(); }
@@ -600,11 +586,17 @@
template <typename T>
void* FlagOps(FlagOp op, const void* v1, void* v2, void* v3) {
switch (op) {
- case FlagOp::kDelete:
- delete static_cast<const T*>(v1);
+ case FlagOp::kAlloc: {
+ std::allocator<T> alloc;
+ return std::allocator_traits<std::allocator<T>>::allocate(alloc, 1);
+ }
+ case FlagOp::kDelete: {
+ T* p = static_cast<T*>(v2);
+ p->~T();
+ std::allocator<T> alloc;
+ std::allocator_traits<std::allocator<T>>::deallocate(alloc, p, 1);
return nullptr;
- case FlagOp::kClone:
- return new T(*static_cast<const T*>(v1));
+ }
case FlagOp::kCopy:
*static_cast<T*>(v2) = *static_cast<const T*>(v1);
return nullptr;
@@ -648,6 +640,7 @@
// This class facilitates Flag object registration and tail expression-based
// flag definition, for example:
// ABSL_FLAG(int, foo, 42, "Foo help").OnUpdate(NotifyFooWatcher);
+struct FlagRegistrarEmpty {};
template <typename T, bool do_register>
class FlagRegistrar {
public:
@@ -655,14 +648,15 @@
if (do_register) flags_internal::RegisterCommandLineFlag(&flag_->impl_);
}
- FlagRegistrar& OnUpdate(FlagCallbackFunc cb) && {
- flag_->SetCallback(cb);
+ FlagRegistrar OnUpdate(FlagCallbackFunc cb) && {
+ flag_->impl_.SetCallback(cb);
return *this;
}
- // Make the registrar "die" gracefully as a bool on a line where registration
- // happens. Registrar objects are intended to live only as temporary.
- operator bool() const { return true; } // NOLINT
+ // Make the registrar "die" gracefully as an empty struct on a line where
+ // registration happens. Registrar objects are intended to live only as
+ // temporary.
+ operator FlagRegistrarEmpty() const { return {}; } // NOLINT
private:
Flag<T>* flag_; // Flag being registered (not owned).
@@ -673,13 +667,13 @@
struct EmptyBraces {};
template <typename T>
-T* MakeFromDefaultValue(T t) {
- return new T(std::move(t));
+void MakeFromDefaultValue(void* dst, T t) {
+ new (dst) T(std::move(t));
}
template <typename T>
-T* MakeFromDefaultValue(EmptyBraces) {
- return new T{};
+void MakeFromDefaultValue(void* dst, EmptyBraces) {
+ new (dst) T{};
}
} // namespace flags_internal
diff --git a/absl/flags/internal/usage_test.cc b/absl/flags/internal/usage_test.cc
index e1e57e5..8dd3532 100644
--- a/absl/flags/internal/usage_test.cc
+++ b/absl/flags/internal/usage_test.cc
@@ -103,8 +103,9 @@
#ifndef _WIN32
// TODO(rogeeff): figure out why this does not work on Windows.
- EXPECT_DEATH(absl::SetProgramUsageMessage("custom usage message"),
- ".*SetProgramUsageMessage\\(\\) called twice.*");
+ EXPECT_DEATH_IF_SUPPORTED(
+ absl::SetProgramUsageMessage("custom usage message"),
+ ".*SetProgramUsageMessage\\(\\) called twice.*");
#endif
}
diff --git a/absl/flags/parse_test.cc b/absl/flags/parse_test.cc
index 6f49377..065f757 100644
--- a/absl/flags/parse_test.cc
+++ b/absl/flags/parse_test.cc
@@ -481,21 +481,22 @@
"testbin",
"--undefined_flag",
};
- EXPECT_DEATH(InvokeParse(in_args1),
- "Unknown command line flag 'undefined_flag'");
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args1),
+ "Unknown command line flag 'undefined_flag'");
const char* in_args2[] = {
"testbin",
"--noprefixed_flag",
};
- EXPECT_DEATH(InvokeParse(in_args2),
- "Unknown command line flag 'noprefixed_flag'");
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args2),
+ "Unknown command line flag 'noprefixed_flag'");
const char* in_args3[] = {
"testbin",
"--Int_flag=1",
};
- EXPECT_DEATH(InvokeParse(in_args3), "Unknown command line flag 'Int_flag'");
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args3),
+ "Unknown command line flag 'Int_flag'");
}
// --------------------------------------------------------------------
@@ -505,7 +506,7 @@
"testbin",
"--bool_flag=",
};
- EXPECT_DEATH(
+ EXPECT_DEATH_IF_SUPPORTED(
InvokeParse(in_args1),
"Missing the value after assignment for the boolean flag 'bool_flag'");
@@ -513,7 +514,7 @@
"testbin",
"--nobool_flag=true",
};
- EXPECT_DEATH(InvokeParse(in_args2),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args2),
"Negative form with assignment is not valid for the boolean "
"flag 'bool_flag'");
}
@@ -525,14 +526,14 @@
"testbin",
"--nostring_flag",
};
- EXPECT_DEATH(InvokeParse(in_args1),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args1),
"Negative form is not valid for the flag 'string_flag'");
const char* in_args2[] = {
"testbin",
"--int_flag",
};
- EXPECT_DEATH(InvokeParse(in_args2),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args2),
"Missing the value for the flag 'int_flag'");
}
@@ -543,7 +544,7 @@
"testbin",
"--udt_flag=1",
};
- EXPECT_DEATH(InvokeParse(in_args1),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args1),
"Illegal value '1' specified for flag 'udt_flag'; Use values A, "
"AAA instead");
@@ -552,7 +553,7 @@
"--udt_flag",
"AA",
};
- EXPECT_DEATH(InvokeParse(in_args2),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args2),
"Illegal value 'AA' specified for flag 'udt_flag'; Use values "
"A, AAA instead");
}
@@ -658,7 +659,7 @@
GetFlagfileFlag({{"parse_test.ff4",
absl::MakeConstSpan(ff4_data)}}, &flagfile_flag),
};
- EXPECT_DEATH(InvokeParse(in_args1),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args1),
"Unknown command line flag 'unknown_flag'");
constexpr const char* const ff5_data[] = {
@@ -670,7 +671,7 @@
GetFlagfileFlag({{"parse_test.ff5",
absl::MakeConstSpan(ff5_data)}}, &flagfile_flag),
};
- EXPECT_DEATH(InvokeParse(in_args2),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args2),
"Unknown command line flag 'int_flag 10'");
constexpr const char* const ff6_data[] = {
@@ -682,14 +683,15 @@
GetFlagfileFlag({{"parse_test.ff6", absl::MakeConstSpan(ff6_data)}},
&flagfile_flag),
};
- EXPECT_DEATH(InvokeParse(in_args3),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args3),
"Flagfile can't contain position arguments or --");
const char* in_args4[] = {
"testbin",
"--flagfile=invalid_flag_file",
};
- EXPECT_DEATH(InvokeParse(in_args4), "Can't open flagfile invalid_flag_file");
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args4),
+ "Can't open flagfile invalid_flag_file");
constexpr const char* const ff7_data[] = {
"--int_flag=10",
@@ -702,7 +704,7 @@
GetFlagfileFlag({{"parse_test.ff7", absl::MakeConstSpan(ff7_data)}},
&flagfile_flag),
};
- EXPECT_DEATH(InvokeParse(in_args5),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args5),
"Unexpected line in the flagfile .*: \\*bin\\*");
}
@@ -724,7 +726,7 @@
TEST_F(ParseDeathTest, TestReadingUnsetRequiredFlagsFromEnv) {
const char* in_args1[] = {"testbin", "--fromenv=int_flag"};
- EXPECT_DEATH(InvokeParse(in_args1),
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args1),
"FLAGS_int_flag not found in environment");
}
@@ -735,7 +737,8 @@
ScopedSetEnv set_tryfromenv("FLAGS_tryfromenv", "int_flag");
- EXPECT_DEATH(InvokeParse(in_args1), "Infinite recursion on flag tryfromenv");
+ EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args1),
+ "Infinite recursion on flag tryfromenv");
}
// --------------------------------------------------------------------
diff --git a/absl/hash/BUILD.bazel b/absl/hash/BUILD.bazel
index 59eac78..6c77f1a 100644
--- a/absl/hash/BUILD.bazel
+++ b/absl/hash/BUILD.bazel
@@ -43,7 +43,6 @@
"//absl/meta:type_traits",
"//absl/numeric:int128",
"//absl/strings",
- "//absl/strings:cord",
"//absl/types:optional",
"//absl/types:variant",
"//absl/utility",
diff --git a/absl/hash/BUILD.gn b/absl/hash/BUILD.gn
index 81bbb5b..d546eb9 100644
--- a/absl/hash/BUILD.gn
+++ b/absl/hash/BUILD.gn
@@ -32,7 +32,6 @@
"//third_party/abseil-cpp/absl/meta:type_traits",
"//third_party/abseil-cpp/absl/numeric:int128",
"//third_party/abseil-cpp/absl/strings",
- "//third_party/abseil-cpp/absl/strings:cord",
"//third_party/abseil-cpp/absl/types:optional",
"//third_party/abseil-cpp/absl/types:variant",
"//third_party/abseil-cpp/absl/utility",
diff --git a/absl/hash/CMakeLists.txt b/absl/hash/CMakeLists.txt
index 4e55514..61365e9 100644
--- a/absl/hash/CMakeLists.txt
+++ b/absl/hash/CMakeLists.txt
@@ -25,7 +25,6 @@
COPTS
${ABSL_DEFAULT_COPTS}
DEPS
- absl::cord
absl::core_headers
absl::endian
absl::fixed_array
diff --git a/absl/hash/internal/hash.h b/absl/hash/internal/hash.h
index 025d287..a71bd4a 100644
--- a/absl/hash/internal/hash.h
+++ b/absl/hash/internal/hash.h
@@ -43,7 +43,6 @@
#include "absl/container/fixed_array.h"
#include "absl/meta/type_traits.h"
#include "absl/numeric/int128.h"
-#include "absl/strings/cord.h"
#include "absl/strings/string_view.h"
#include "absl/types/optional.h"
#include "absl/types/variant.h"
@@ -54,12 +53,65 @@
ABSL_NAMESPACE_BEGIN
namespace hash_internal {
-class PiecewiseCombiner;
-
// Internal detail: Large buffers are hashed in smaller chunks. This function
// returns the size of these chunks.
constexpr size_t PiecewiseChunkSize() { return 1024; }
+// PiecewiseCombiner
+//
+// PiecewiseCombiner is an internal-only helper class for hashing a piecewise
+// buffer of `char` or `unsigned char` as though it were contiguous. This class
+// provides two methods:
+//
+// H add_buffer(state, data, size)
+// H finalize(state)
+//
+// `add_buffer` can be called zero or more times, followed by a single call to
+// `finalize`. This will produce the same hash expansion as concatenating each
+// buffer piece into a single contiguous buffer, and passing this to
+// `H::combine_contiguous`.
+//
+// Example usage:
+// PiecewiseCombiner combiner;
+// for (const auto& piece : pieces) {
+// state = combiner.add_buffer(std::move(state), piece.data, piece.size);
+// }
+// return combiner.finalize(std::move(state));
+class PiecewiseCombiner {
+ public:
+ PiecewiseCombiner() : position_(0) {}
+ PiecewiseCombiner(const PiecewiseCombiner&) = delete;
+ PiecewiseCombiner& operator=(const PiecewiseCombiner&) = delete;
+
+ // PiecewiseCombiner::add_buffer()
+ //
+ // Appends the given range of bytes to the sequence to be hashed, which may
+ // modify the provided hash state.
+ template <typename H>
+ H add_buffer(H state, const unsigned char* data, size_t size);
+ template <typename H>
+ H add_buffer(H state, const char* data, size_t size) {
+ return add_buffer(std::move(state),
+ reinterpret_cast<const unsigned char*>(data), size);
+ }
+
+ // PiecewiseCombiner::finalize()
+ //
+ // Finishes combining the hash sequence, which may may modify the provided
+ // hash state.
+ //
+ // Once finalize() is called, add_buffer() may no longer be called. The
+ // resulting hash state will be the same as if the pieces passed to
+ // add_buffer() were concatenated into a single flat buffer, and then provided
+ // to H::combine_contiguous().
+ template <typename H>
+ H finalize(H state);
+
+ private:
+ unsigned char buf_[PiecewiseChunkSize()];
+ size_t position_;
+};
+
// HashStateBase
//
// A hash state object represents an intermediate state in the computation
@@ -126,8 +178,7 @@
template <typename T>
static H combine_contiguous(H state, const T* data, size_t size);
- private:
- friend class PiecewiseCombiner;
+ using AbslInternalPiecewiseCombiner = PiecewiseCombiner;
};
// is_uniquely_represented
@@ -198,61 +249,6 @@
return H::combine_contiguous(std::move(hash_state), start, sizeof(value));
}
-// PiecewiseCombiner
-//
-// PiecewiseCombiner is an internal-only helper class for hashing a piecewise
-// buffer of `char` or `unsigned char` as though it were contiguous. This class
-// provides two methods:
-//
-// H add_buffer(state, data, size)
-// H finalize(state)
-//
-// `add_buffer` can be called zero or more times, followed by a single call to
-// `finalize`. This will produce the same hash expansion as concatenating each
-// buffer piece into a single contiguous buffer, and passing this to
-// `H::combine_contiguous`.
-//
-// Example usage:
-// PiecewiseCombiner combiner;
-// for (const auto& piece : pieces) {
-// state = combiner.add_buffer(std::move(state), piece.data, piece.size);
-// }
-// return combiner.finalize(std::move(state));
-class PiecewiseCombiner {
- public:
- PiecewiseCombiner() : position_(0) {}
- PiecewiseCombiner(const PiecewiseCombiner&) = delete;
- PiecewiseCombiner& operator=(const PiecewiseCombiner&) = delete;
-
- // PiecewiseCombiner::add_buffer()
- //
- // Appends the given range of bytes to the sequence to be hashed, which may
- // modify the provided hash state.
- template <typename H>
- H add_buffer(H state, const unsigned char* data, size_t size);
- template <typename H>
- H add_buffer(H state, const char* data, size_t size) {
- return add_buffer(std::move(state),
- reinterpret_cast<const unsigned char*>(data), size);
- }
-
- // PiecewiseCombiner::finalize()
- //
- // Finishes combining the hash sequence, which may may modify the provided
- // hash state.
- //
- // Once finalize() is called, add_buffer() may no longer be called. The
- // resulting hash state will be the same as if the pieces passed to
- // add_buffer() were concatenated into a single flat buffer, and then provided
- // to H::combine_contiguous().
- template <typename H>
- H finalize(H state);
-
- private:
- unsigned char buf_[PiecewiseChunkSize()];
- size_t position_;
-};
-
// -----------------------------------------------------------------------------
// AbslHashValue for Basic Types
// -----------------------------------------------------------------------------
@@ -443,25 +439,6 @@
str.size());
}
-template <typename H>
-H HashFragmentedCord(H hash_state, const absl::Cord& c) {
- PiecewiseCombiner combiner;
- c.ForEachChunk([&combiner, &hash_state](absl::string_view chunk) {
- hash_state =
- combiner.add_buffer(std::move(hash_state), chunk.data(), chunk.size());
- });
- return H::combine(combiner.finalize(std::move(hash_state)), c.size());
-}
-
-template <typename H>
-H AbslHashValue(H hash_state, const absl::Cord& c) {
- absl::optional<absl::string_view> maybe_flat = c.TryFlat();
- if (maybe_flat.has_value()) {
- return H::combine(std::move(hash_state), *maybe_flat);
- }
- return hash_internal::HashFragmentedCord(std::move(hash_state), c);
-}
-
// -----------------------------------------------------------------------------
// AbslHashValue for Sequence Containers
// -----------------------------------------------------------------------------
diff --git a/absl/random/BUILD.bazel b/absl/random/BUILD.bazel
index 4d94e1b..e61d31b 100644
--- a/absl/random/BUILD.bazel
+++ b/absl/random/BUILD.bazel
@@ -412,6 +412,7 @@
name = "mocking_bit_gen_test",
size = "small",
srcs = ["mocking_bit_gen_test.cc"],
+ copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":bit_gen_ref",
@@ -426,6 +427,8 @@
name = "mock_distributions_test",
size = "small",
srcs = ["mock_distributions_test.cc"],
+ copts = ABSL_TEST_COPTS,
+ linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":mock_distributions",
":mocking_bit_gen",
diff --git a/absl/random/internal/iostream_state_saver.h b/absl/random/internal/iostream_state_saver.h
index 7378829..e6e242e 100644
--- a/absl/random/internal/iostream_state_saver.h
+++ b/absl/random/internal/iostream_state_saver.h
@@ -192,8 +192,8 @@
template <typename OStream>
inline void write(absl::uint128 val, OStream& out) {
- uint64_t h = Uint128High64(val);
- uint64_t l = Uint128Low64(val);
+ uint64_t h = absl::Uint128High64(val);
+ uint64_t l = absl::Uint128Low64(val);
out << h << out.fill() << l;
}
};
diff --git a/absl/random/internal/nanobenchmark_test.cc b/absl/random/internal/nanobenchmark_test.cc
index ab824ef..f1571e2 100644
--- a/absl/random/internal/nanobenchmark_test.cc
+++ b/absl/random/internal/nanobenchmark_test.cc
@@ -53,7 +53,7 @@
// Avoid migrating between cores - important on multi-socket systems.
int cpu = -1;
if (argc == 2) {
- if (!SimpleAtoi(argv[1], &cpu)) {
+ if (!absl::SimpleAtoi(argv[1], &cpu)) {
ABSL_RAW_LOG(FATAL, "The optional argument must be a CPU number >= 0.\n");
}
}
diff --git a/absl/random/internal/wide_multiply.h b/absl/random/internal/wide_multiply.h
index 6e4cf1b..0afcbe0 100644
--- a/absl/random/internal/wide_multiply.h
+++ b/absl/random/internal/wide_multiply.h
@@ -38,9 +38,9 @@
// MultiplyU64ToU128 multiplies two 64-bit values to a 128-bit value.
// If an intrinsic is available, it is used, otherwise use native 32-bit
// multiplies to construct the result.
-inline uint128 MultiplyU64ToU128(uint64_t a, uint64_t b) {
+inline absl::uint128 MultiplyU64ToU128(uint64_t a, uint64_t b) {
#if defined(ABSL_HAVE_INTRINSIC_INT128)
- return uint128(static_cast<__uint128_t>(a) * b);
+ return absl::uint128(static_cast<__uint128_t>(a) * b);
#elif defined(ABSL_INTERNAL_USE_UMUL128)
// uint64_t * uint64_t => uint128 multiply using imul intrinsic on MSVC.
uint64_t high = 0;
@@ -93,14 +93,14 @@
template <>
struct wide_multiply<uint64_t> {
using input_type = uint64_t;
- using result_type = uint128;
+ using result_type = absl::uint128;
static result_type multiply(uint64_t a, uint64_t b) {
return MultiplyU64ToU128(a, b);
}
- static uint64_t hi(result_type r) { return Uint128High64(r); }
- static uint64_t lo(result_type r) { return Uint128Low64(r); }
+ static uint64_t hi(result_type r) { return absl::Uint128High64(r); }
+ static uint64_t lo(result_type r) { return absl::Uint128Low64(r); }
};
#endif
diff --git a/absl/random/random.h b/absl/random/random.h
index c8f326e..71b6309 100644
--- a/absl/random/random.h
+++ b/absl/random/random.h
@@ -109,7 +109,7 @@
// absl::BitGen::max()
//
-// Returns the largest possible value from this bit generator., and
+// Returns the largest possible value from this bit generator.
// absl::BitGen::discard(num)
//
diff --git a/absl/status/BUILD.bazel b/absl/status/BUILD.bazel
index 2b83077..d164252 100644
--- a/absl/status/BUILD.bazel
+++ b/absl/status/BUILD.bazel
@@ -40,6 +40,7 @@
],
copts = ABSL_DEFAULT_COPTS,
deps = [
+ "//absl/base:atomic_hook",
"//absl/base:config",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
diff --git a/absl/status/BUILD.gn b/absl/status/BUILD.gn
index 0d58c16..38dbbfc 100644
--- a/absl/status/BUILD.gn
+++ b/absl/status/BUILD.gn
@@ -14,6 +14,7 @@
"status_payload_printer.cc",
]
deps = [
+ "//third_party/abseil-cpp/absl/base:atomic_hook",
"//third_party/abseil-cpp/absl/base:config",
"//third_party/abseil-cpp/absl/base:core_headers",
"//third_party/abseil-cpp/absl/base:raw_logging_internal",
diff --git a/absl/status/CMakeLists.txt b/absl/status/CMakeLists.txt
index f05cee5..c041d69 100644
--- a/absl/status/CMakeLists.txt
+++ b/absl/status/CMakeLists.txt
@@ -25,6 +25,7 @@
COPTS
${ABSL_DEFAULT_COPTS}
DEPS
+ absl::atomic_hook
absl::config
absl::core_headers
absl::raw_logging_internal
diff --git a/absl/status/status.h b/absl/status/status.h
index 67ff988..967e606 100644
--- a/absl/status/status.h
+++ b/absl/status/status.h
@@ -78,7 +78,7 @@
Status();
// Create a status in the canonical error space with the specified code and
- // error message. If `code == util::error::OK`, `msg` is ignored and an
+ // error message. If `code == absl::StatusCode::kOk`, `msg` is ignored and an
// object identical to an OK status is constructed.
//
// `msg` must be in UTF-8. The implementation may complain (e.g.,
diff --git a/absl/status/status_payload_printer.cc b/absl/status/status_payload_printer.cc
index ad96d76..a47aea1 100644
--- a/absl/status/status_payload_printer.cc
+++ b/absl/status/status_payload_printer.cc
@@ -16,26 +16,21 @@
#include <atomic>
#include "absl/base/attributes.h"
+#include "absl/base/internal/atomic_hook.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace status_internal {
-namespace {
-// Tried constant initialized global variable but it doesn't work with Lexan
-// (MSVC's `std::atomic` has trouble constant initializing).
-std::atomic<StatusPayloadPrinter>& GetStatusPayloadPrinterStorage() {
- ABSL_CONST_INIT static std::atomic<StatusPayloadPrinter> instance{nullptr};
- return instance;
-}
-} // namespace
+ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES
+static absl::base_internal::AtomicHook<StatusPayloadPrinter> storage;
void SetStatusPayloadPrinter(StatusPayloadPrinter printer) {
- GetStatusPayloadPrinterStorage().store(printer, std::memory_order_relaxed);
+ storage.Store(printer);
}
StatusPayloadPrinter GetStatusPayloadPrinter() {
- return GetStatusPayloadPrinterStorage().load(std::memory_order_relaxed);
+ return storage.Load();
}
} // namespace status_internal
diff --git a/absl/strings/BUILD.bazel b/absl/strings/BUILD.bazel
index 3890112..8aecbe5 100644
--- a/absl/strings/BUILD.bazel
+++ b/absl/strings/BUILD.bazel
@@ -310,6 +310,7 @@
deps = [
":cord",
":cord_test_helpers",
+ ":str_format",
":strings",
"//absl/base",
"//absl/base:config",
@@ -368,6 +369,8 @@
":strings",
"//absl/base:core_headers",
"//absl/base:dynamic_annotations",
+ "//absl/container:flat_hash_map",
+ "//absl/container:node_hash_map",
"@com_google_googletest//:gtest_main",
],
)
@@ -649,6 +652,7 @@
copts = ABSL_TEST_COPTS,
visibility = ["//visibility:private"],
deps = [
+ ":cord",
":str_format",
":strings",
"//absl/base:core_headers",
@@ -666,6 +670,7 @@
deps = [
":str_format",
":str_format_internal",
+ ":strings",
"@com_google_googletest//:gtest_main",
],
)
@@ -724,6 +729,7 @@
copts = ABSL_TEST_COPTS,
visibility = ["//visibility:private"],
deps = [
+ ":cord",
":str_format_internal",
"@com_google_googletest//:gtest_main",
],
diff --git a/absl/strings/CMakeLists.txt b/absl/strings/CMakeLists.txt
index d3a8bd7..003794f 100644
--- a/absl/strings/CMakeLists.txt
+++ b/absl/strings/CMakeLists.txt
@@ -210,6 +210,8 @@
absl::base
absl::core_headers
absl::dynamic_annotations
+ absl::flat_hash_map
+ absl::node_hash_map
gmock_main
)
@@ -407,6 +409,7 @@
${ABSL_TEST_COPTS}
DEPS
absl::str_format
+ absl::cord
absl::strings
absl::core_headers
gmock_main
@@ -422,6 +425,7 @@
DEPS
absl::str_format
absl::str_format_internal
+ absl::strings
gmock_main
)
@@ -485,6 +489,7 @@
${ABSL_TEST_COPTS}
DEPS
absl::str_format_internal
+ absl::cord
gmock_main
)
@@ -539,7 +544,6 @@
COPTS
${ABSL_DEFAULT_COPTS}
DEPS
- absl::strings_internal
absl::base
absl::base_internal
absl::core_headers
@@ -550,6 +554,7 @@
absl::optional
absl::raw_logging_internal
absl::strings
+ absl::strings_internal
absl::type_traits
PUBLIC
)
@@ -575,6 +580,7 @@
${ABSL_TEST_COPTS}
DEPS
absl::cord
+ absl::str_format
absl::strings
absl::base
absl::config
diff --git a/absl/strings/cord.cc b/absl/strings/cord.cc
index 7de7766..fa490c1 100644
--- a/absl/strings/cord.cc
+++ b/absl/strings/cord.cc
@@ -31,6 +31,7 @@
#include "absl/base/macros.h"
#include "absl/base/port.h"
#include "absl/container/fixed_array.h"
+#include "absl/container/inlined_vector.h"
#include "absl/strings/escaping.h"
#include "absl/strings/internal/cord_internal.h"
#include "absl/strings/internal/resize_uninitialized.h"
@@ -132,14 +133,6 @@
return static_cast<const CordRepExternal*>(this);
}
-using CordTreeConstPath = CordTreePath<const CordRep*, MaxCordDepth()>;
-
-// This type is used to store the list of pending nodes during re-balancing.
-// Its maximum size is 2 * MaxCordDepth() because the tree has a maximum
-// possible depth of MaxCordDepth() and every concat node along a tree path
-// could theoretically be split during rebalancing.
-using RebalancingStack = CordTreePath<CordRep*, 2 * MaxCordDepth()>;
-
} // namespace cord_internal
static const size_t kFlatOverhead = offsetof(CordRep, data);
@@ -188,78 +181,64 @@
// Enforce that kMaxFlatSize maps to a well-known exact tag value.
static_assert(TagToAllocatedSize(224) == kMaxFlatSize, "Bad tag logic");
-constexpr size_t Fibonacci(uint8_t n, const size_t a = 0, const size_t b = 1) {
- return n == 0
- ? a
- : n == 1 ? b
- : Fibonacci(n - 1, b,
- (a > (size_t(-1) - b)) ? size_t(-1) : a + b);
+constexpr uint64_t Fibonacci(unsigned char n, uint64_t a = 0, uint64_t b = 1) {
+ return n == 0 ? a : Fibonacci(n - 1, b, a + b);
}
+static_assert(Fibonacci(63) == 6557470319842,
+ "Fibonacci values computed incorrectly");
+
// Minimum length required for a given depth tree -- a tree is considered
// balanced if
-// length(t) >= kMinLength[depth(t)]
-// The node depth is allowed to become larger to reduce rebalancing
-// for larger strings (see ShouldRebalance).
-constexpr size_t kMinLength[] = {
- Fibonacci(2), Fibonacci(3), Fibonacci(4), Fibonacci(5), Fibonacci(6),
- Fibonacci(7), Fibonacci(8), Fibonacci(9), Fibonacci(10), Fibonacci(11),
- Fibonacci(12), Fibonacci(13), Fibonacci(14), Fibonacci(15), Fibonacci(16),
- Fibonacci(17), Fibonacci(18), Fibonacci(19), Fibonacci(20), Fibonacci(21),
- Fibonacci(22), Fibonacci(23), Fibonacci(24), Fibonacci(25), Fibonacci(26),
- Fibonacci(27), Fibonacci(28), Fibonacci(29), Fibonacci(30), Fibonacci(31),
- Fibonacci(32), Fibonacci(33), Fibonacci(34), Fibonacci(35), Fibonacci(36),
- Fibonacci(37), Fibonacci(38), Fibonacci(39), Fibonacci(40), Fibonacci(41),
- Fibonacci(42), Fibonacci(43), Fibonacci(44), Fibonacci(45), Fibonacci(46),
- Fibonacci(47), Fibonacci(48), Fibonacci(49), Fibonacci(50), Fibonacci(51),
- Fibonacci(52), Fibonacci(53), Fibonacci(54), Fibonacci(55), Fibonacci(56),
- Fibonacci(57), Fibonacci(58), Fibonacci(59), Fibonacci(60), Fibonacci(61),
- Fibonacci(62), Fibonacci(63), Fibonacci(64), Fibonacci(65), Fibonacci(66),
- Fibonacci(67), Fibonacci(68), Fibonacci(69), Fibonacci(70), Fibonacci(71),
- Fibonacci(72), Fibonacci(73), Fibonacci(74), Fibonacci(75), Fibonacci(76),
- Fibonacci(77), Fibonacci(78), Fibonacci(79), Fibonacci(80), Fibonacci(81),
- Fibonacci(82), Fibonacci(83), Fibonacci(84), Fibonacci(85), Fibonacci(86),
- Fibonacci(87), Fibonacci(88), Fibonacci(89), Fibonacci(90), Fibonacci(91),
- Fibonacci(92), Fibonacci(93), Fibonacci(94), Fibonacci(95)};
+// length(t) >= min_length[depth(t)]
+// The root node depth is allowed to become twice as large to reduce rebalancing
+// for larger strings (see IsRootBalanced).
+static constexpr uint64_t min_length[] = {
+ Fibonacci(2), Fibonacci(3), Fibonacci(4), Fibonacci(5),
+ Fibonacci(6), Fibonacci(7), Fibonacci(8), Fibonacci(9),
+ Fibonacci(10), Fibonacci(11), Fibonacci(12), Fibonacci(13),
+ Fibonacci(14), Fibonacci(15), Fibonacci(16), Fibonacci(17),
+ Fibonacci(18), Fibonacci(19), Fibonacci(20), Fibonacci(21),
+ Fibonacci(22), Fibonacci(23), Fibonacci(24), Fibonacci(25),
+ Fibonacci(26), Fibonacci(27), Fibonacci(28), Fibonacci(29),
+ Fibonacci(30), Fibonacci(31), Fibonacci(32), Fibonacci(33),
+ Fibonacci(34), Fibonacci(35), Fibonacci(36), Fibonacci(37),
+ Fibonacci(38), Fibonacci(39), Fibonacci(40), Fibonacci(41),
+ Fibonacci(42), Fibonacci(43), Fibonacci(44), Fibonacci(45),
+ Fibonacci(46), Fibonacci(47),
+ 0xffffffffffffffffull, // Avoid overflow
+};
-static_assert(sizeof(kMinLength) / sizeof(size_t) >=
- (cord_internal::MaxCordDepth() + 1),
- "Not enough elements in kMinLength array to cover all the "
- "supported Cord depth(s)");
+static const int kMinLengthSize = ABSL_ARRAYSIZE(min_length);
-inline bool ShouldRebalance(const CordRep* node) {
- if (node->tag != CONCAT) return false;
+// The inlined size to use with absl::InlinedVector.
+//
+// Note: The InlinedVectors in this file (and in cord.h) do not need to use
+// the same value for their inlined size. The fact that they do is historical.
+// It may be desirable for each to use a different inlined size optimized for
+// that InlinedVector's usage.
+//
+// TODO(jgm): Benchmark to see if there's a more optimal value than 47 for
+// the inlined vector size (47 exists for backward compatibility).
+static const int kInlinedVectorSize = 47;
- size_t node_depth = node->concat()->depth();
-
- if (node_depth <= 15) return false;
-
- // Rebalancing Cords is expensive, so we reduce how often rebalancing occurs
- // by allowing shallow Cords to have twice the depth that the Fibonacci rule
- // would otherwise imply. Deep Cords need to follow the rule more closely,
- // however to ensure algorithm correctness. We implement this with linear
- // interpolation. Cords of depth 16 are treated as though they have a depth
- // of 16 * 1/2, and Cords of depth MaxCordDepth() interpolate to
- // MaxCordDepth() * 1.
- return node->length <
- kMinLength[(node_depth * (cord_internal::MaxCordDepth() - 16)) /
- (2 * cord_internal::MaxCordDepth() - 16 - node_depth)];
-}
-
-// Unlike root balancing condition this one is part of the re-balancing
-// algorithm and has to be always matching against right depth for
-// algorithm to be correct.
-inline bool IsNodeBalanced(const CordRep* node) {
- if (node->tag != CONCAT) return true;
-
- size_t node_depth = node->concat()->depth();
-
- return node->length >= kMinLength[node_depth];
+static inline bool IsRootBalanced(CordRep* node) {
+ if (node->tag != CONCAT) {
+ return true;
+ } else if (node->concat()->depth() <= 15) {
+ return true;
+ } else if (node->concat()->depth() > kMinLengthSize) {
+ return false;
+ } else {
+ // Allow depth to become twice as large as implied by fibonacci rule to
+ // reduce rebalancing for larger strings.
+ return (node->length >= min_length[node->concat()->depth() / 2]);
+ }
}
static CordRep* Rebalance(CordRep* node);
-static void DumpNode(const CordRep* rep, bool include_data, std::ostream* os);
-static bool VerifyNode(const CordRep* root, const CordRep* start_node,
+static void DumpNode(CordRep* rep, bool include_data, std::ostream* os);
+static bool VerifyNode(CordRep* root, CordRep* start_node,
bool full_validation);
static inline CordRep* VerifyTree(CordRep* node) {
@@ -306,8 +285,7 @@
static void UnrefInternal(CordRep* rep) {
assert(rep != nullptr);
- cord_internal::RebalancingStack pending;
-
+ absl::InlinedVector<CordRep*, kInlinedVectorSize> pending;
while (true) {
if (rep->tag == CONCAT) {
CordRepConcat* rep_concat = rep->concat();
@@ -389,11 +367,6 @@
concat->length = left->length + right->length;
concat->set_depth(1 + std::max(Depth(left), Depth(right)));
-
- ABSL_INTERNAL_CHECK(concat->depth() <= cord_internal::MaxCordDepth(),
- "Cord depth exceeds max");
- ABSL_INTERNAL_CHECK(concat->length >= left->length, "Cord is too long");
- ABSL_INTERNAL_CHECK(concat->length >= right->length, "Cord is too long");
}
// Create a concatenation of the specified nodes.
@@ -419,7 +392,7 @@
static CordRep* Concat(CordRep* left, CordRep* right) {
CordRep* rep = RawConcat(left, right);
- if (rep != nullptr && ShouldRebalance(rep)) {
+ if (rep != nullptr && !IsRootBalanced(rep)) {
rep = Rebalance(rep);
}
return VerifyTree(rep);
@@ -714,14 +687,6 @@
memset(data_, 0, sizeof(data_));
}
-inline Cord::InternalChunkIterator Cord::internal_chunk_begin() const {
- return InternalChunkIterator(this);
-}
-
-inline Cord::InternalChunkRange Cord::InternalChunks() const {
- return InternalChunkRange(this);
-}
-
// --------------------------------------------------------------------
// Constructors and destructors
@@ -918,7 +883,7 @@
static CordRep* RemovePrefixFrom(CordRep* node, size_t n) {
if (n >= node->length) return nullptr;
if (n == 0) return Ref(node);
- cord_internal::CordTreeMutablePath rhs_stack;
+ absl::InlinedVector<CordRep*, kInlinedVectorSize> rhs_stack;
while (node->tag == CONCAT) {
assert(n <= node->length);
@@ -959,7 +924,7 @@
static CordRep* RemoveSuffixFrom(CordRep* node, size_t n) {
if (n >= node->length) return nullptr;
if (n == 0) return Ref(node);
- absl::cord_internal::CordTreeMutablePath lhs_stack;
+ absl::InlinedVector<CordRep*, kInlinedVectorSize> lhs_stack;
bool inplace_ok = node->refcount.IsOne();
while (node->tag == CONCAT) {
@@ -1030,7 +995,6 @@
// Work item for NewSubRange().
struct SubRange {
- SubRange() = default;
SubRange(CordRep* a_node, size_t a_pos, size_t a_n)
: node(a_node), pos(a_pos), n(a_n) {}
CordRep* node; // nullptr means concat last 2 results.
@@ -1039,11 +1003,8 @@
};
static CordRep* NewSubRange(CordRep* node, size_t pos, size_t n) {
- cord_internal::CordTreeMutablePath results;
- // The algorithm below in worst case scenario adds up to 3 nodes to the `todo`
- // list, but we also pop one out on every cycle. If original tree has depth d
- // todo list can grew up to 2*d in size.
- cord_internal::CordTreePath<SubRange, 2 * cord_internal::MaxCordDepth()> todo;
+ absl::InlinedVector<CordRep*, kInlinedVectorSize> results;
+ absl::InlinedVector<SubRange, kInlinedVectorSize> todo;
todo.push_back(SubRange(node, pos, n));
do {
const SubRange& sr = todo.back();
@@ -1080,7 +1041,7 @@
}
} while (!todo.empty());
assert(results.size() == 1);
- return results.back();
+ return results[0];
}
Cord Cord::Subcord(size_t pos, size_t new_size) const {
@@ -1096,7 +1057,7 @@
} else if (new_size == 0) {
// We want to return empty subcord, so nothing to do.
} else if (new_size <= InlineRep::kMaxInline) {
- Cord::InternalChunkIterator it = internal_chunk_begin();
+ Cord::ChunkIterator it = chunk_begin();
it.AdvanceBytes(pos);
char* dest = sub_cord.contents_.data_;
size_t remaining_size = new_size;
@@ -1119,12 +1080,11 @@
class CordForest {
public:
- explicit CordForest(size_t length) : root_length_(length), trees_({}) {}
+ explicit CordForest(size_t length)
+ : root_length_(length), trees_(kMinLengthSize, nullptr) {}
void Build(CordRep* cord_root) {
- // We are adding up to two nodes to the `pending` list, but we also popping
- // one, so the size of `pending` will never exceed `MaxCordDepth()`.
- cord_internal::CordTreeMutablePath pending(cord_root);
+ std::vector<CordRep*> pending = {cord_root};
while (!pending.empty()) {
CordRep* node = pending.back();
@@ -1136,20 +1096,21 @@
}
CordRepConcat* concat_node = node->concat();
- if (IsNodeBalanced(concat_node)) {
- AddNode(node);
- continue;
- }
- pending.push_back(concat_node->right);
- pending.push_back(concat_node->left);
+ if (concat_node->depth() >= kMinLengthSize ||
+ concat_node->length < min_length[concat_node->depth()]) {
+ pending.push_back(concat_node->right);
+ pending.push_back(concat_node->left);
- if (concat_node->refcount.IsOne()) {
- concat_node->left = concat_freelist_;
- concat_freelist_ = concat_node;
+ if (concat_node->refcount.IsOne()) {
+ concat_node->left = concat_freelist_;
+ concat_freelist_ = concat_node;
+ } else {
+ Ref(concat_node->right);
+ Ref(concat_node->left);
+ Unref(concat_node);
+ }
} else {
- Ref(concat_node->right);
- Ref(concat_node->left);
- Unref(concat_node);
+ AddNode(node);
}
}
}
@@ -1181,7 +1142,7 @@
// Collect together everything with which we will merge with node
int i = 0;
- for (; node->length >= kMinLength[i + 1]; ++i) {
+ for (; node->length > min_length[i + 1]; ++i) {
auto& tree_at_i = trees_[i];
if (tree_at_i == nullptr) continue;
@@ -1192,7 +1153,7 @@
sum = AppendNode(node, sum);
// Insert sum into appropriate place in the forest
- for (; sum->length >= kMinLength[i]; ++i) {
+ for (; sum->length >= min_length[i]; ++i) {
auto& tree_at_i = trees_[i];
if (tree_at_i == nullptr) continue;
@@ -1200,7 +1161,7 @@
tree_at_i = nullptr;
}
- // kMinLength[0] == 1, which means sum->length >= kMinLength[0]
+ // min_length[0] == 1, which means sum->length >= min_length[0]
assert(i > 0);
trees_[i - 1] = sum;
}
@@ -1233,7 +1194,9 @@
}
size_t root_length_;
- std::array<cord_internal::CordRep*, cord_internal::MaxCordDepth()> trees_;
+
+ // use an inlined vector instead of a flat array to get bounds checking
+ absl::InlinedVector<CordRep*, kInlinedVectorSize> trees_;
// List of concat nodes we can re-use for Cord balancing.
CordRepConcat* concat_freelist_ = nullptr;
@@ -1334,7 +1297,7 @@
inline int Cord::CompareSlowPath(absl::string_view rhs, size_t compared_size,
size_t size_to_compare) const {
- auto advance = [](Cord::InternalChunkIterator* it, absl::string_view* chunk) {
+ auto advance = [](Cord::ChunkIterator* it, absl::string_view* chunk) {
if (!chunk->empty()) return true;
++*it;
if (it->bytes_remaining_ == 0) return false;
@@ -1342,7 +1305,7 @@
return true;
};
- Cord::InternalChunkIterator lhs_it = internal_chunk_begin();
+ Cord::ChunkIterator lhs_it = chunk_begin();
// compared_size is inside first chunk.
absl::string_view lhs_chunk =
@@ -1364,7 +1327,7 @@
inline int Cord::CompareSlowPath(const Cord& rhs, size_t compared_size,
size_t size_to_compare) const {
- auto advance = [](Cord::InternalChunkIterator* it, absl::string_view* chunk) {
+ auto advance = [](Cord::ChunkIterator* it, absl::string_view* chunk) {
if (!chunk->empty()) return true;
++*it;
if (it->bytes_remaining_ == 0) return false;
@@ -1372,8 +1335,8 @@
return true;
};
- Cord::InternalChunkIterator lhs_it = internal_chunk_begin();
- Cord::InternalChunkIterator rhs_it = rhs.internal_chunk_begin();
+ Cord::ChunkIterator lhs_it = chunk_begin();
+ Cord::ChunkIterator rhs_it = rhs.chunk_begin();
// compared_size is inside both first chunks.
absl::string_view lhs_chunk =
@@ -1507,9 +1470,7 @@
}
}
-template <typename StorageType>
-Cord::GenericChunkIterator<StorageType>&
-Cord::GenericChunkIterator<StorageType>::operator++() {
+Cord::ChunkIterator& Cord::ChunkIterator::operator++() {
ABSL_HARDENING_ASSERT(bytes_remaining_ > 0 &&
"Attempted to iterate past `end()`");
assert(bytes_remaining_ >= current_chunk_.size());
@@ -1549,8 +1510,7 @@
return *this;
}
-template <typename StorageType>
-Cord Cord::GenericChunkIterator<StorageType>::AdvanceAndReadBytes(size_t n) {
+Cord Cord::ChunkIterator::AdvanceAndReadBytes(size_t n) {
ABSL_HARDENING_ASSERT(bytes_remaining_ >= n &&
"Attempted to iterate past `end()`");
Cord subcord;
@@ -1664,8 +1624,7 @@
return subcord;
}
-template <typename StorageType>
-void Cord::GenericChunkIterator<StorageType>::AdvanceBytesSlowPath(size_t n) {
+void Cord::ChunkIterator::AdvanceBytesSlowPath(size_t n) {
assert(bytes_remaining_ >= n && "Attempted to iterate past `end()`");
assert(n >= current_chunk_.size()); // This should only be called when
// iterating to a new node.
@@ -1851,18 +1810,18 @@
}
}
-static void DumpNode(const CordRep* rep, bool include_data, std::ostream* os) {
+static void DumpNode(CordRep* rep, bool include_data, std::ostream* os) {
const int kIndentStep = 1;
int indent = 0;
- cord_internal::CordTreeConstPath stack;
- cord_internal::CordTreePath<int, cord_internal::MaxCordDepth()> indents;
+ absl::InlinedVector<CordRep*, kInlinedVectorSize> stack;
+ absl::InlinedVector<int, kInlinedVectorSize> indents;
for (;;) {
*os << std::setw(3) << rep->refcount.Get();
*os << " " << std::setw(7) << rep->length;
*os << " [";
- if (include_data) *os << static_cast<const void*>(rep);
+ if (include_data) *os << static_cast<void*>(rep);
*os << "]";
- *os << " " << (IsNodeBalanced(rep) ? 'b' : 'u');
+ *os << " " << (IsRootBalanced(rep) ? 'b' : 'u');
*os << " " << std::setw(indent) << "";
if (rep->tag == CONCAT) {
*os << "CONCAT depth=" << Depth(rep) << "\n";
@@ -1883,7 +1842,7 @@
} else {
*os << "FLAT cap=" << TagToLength(rep->tag) << " [";
if (include_data)
- *os << absl::CEscape(absl::string_view(rep->data, rep->length));
+ *os << absl::CEscape(std::string(rep->data, rep->length));
*os << "]\n";
}
if (stack.empty()) break;
@@ -1896,19 +1855,19 @@
ABSL_INTERNAL_CHECK(indents.empty(), "");
}
-static std::string ReportError(const CordRep* root, const CordRep* node) {
+static std::string ReportError(CordRep* root, CordRep* node) {
std::ostringstream buf;
buf << "Error at node " << node << " in:";
DumpNode(root, true, &buf);
return buf.str();
}
-static bool VerifyNode(const CordRep* root, const CordRep* start_node,
+static bool VerifyNode(CordRep* root, CordRep* start_node,
bool full_validation) {
- cord_internal::CordTreeConstPath worklist;
+ absl::InlinedVector<CordRep*, 2> worklist;
worklist.push_back(start_node);
do {
- const CordRep* node = worklist.back();
+ CordRep* node = worklist.back();
worklist.pop_back();
ABSL_INTERNAL_CHECK(node != nullptr, ReportError(root, node));
@@ -1958,7 +1917,7 @@
// Iterate over the tree. cur_node is never a leaf node and leaf nodes will
// never be appended to tree_stack. This reduces overhead from manipulating
// tree_stack.
- cord_internal::CordTreeConstPath tree_stack;
+ absl::InlinedVector<const CordRep*, kInlinedVectorSize> tree_stack;
const CordRep* cur_node = rep;
while (true) {
const CordRep* next_node = nullptr;
@@ -2005,9 +1964,6 @@
return out;
}
-template class Cord::GenericChunkIterator<cord_internal::CordTreeMutablePath>;
-template class Cord::GenericChunkIterator<cord_internal::CordTreeDynamicPath>;
-
namespace strings_internal {
size_t CordTestAccess::FlatOverhead() { return kFlatOverhead; }
size_t CordTestAccess::MaxFlatLength() { return kMaxFlatLength; }
diff --git a/absl/strings/cord.h b/absl/strings/cord.h
index 3ab3cb8..ae3d2e7 100644
--- a/absl/strings/cord.h
+++ b/absl/strings/cord.h
@@ -90,10 +90,6 @@
template <typename Releaser>
Cord MakeCordFromExternal(absl::string_view, Releaser&&);
void CopyCordToString(const Cord& src, std::string* dst);
-namespace hash_internal {
-template <typename H>
-H HashFragmentedCord(H, const Cord&);
-}
// Cord
//
@@ -123,132 +119,12 @@
// Additionally, the API provides iterator utilities to iterate through Cord
// data via chunks or character bytes.
//
-
-namespace cord_internal {
-
-// It's expensive to keep a Cord's tree perfectly balanced, so instead we keep
-// trees approximately balanced. A tree node N of depth D(N) that contains a
-// string of L(N) characters is considered balanced if L >= Fibonacci(D + 2).
-// The "+ 2" is used to ensure that every balanced leaf node contains at least
-// one character. Here we presume that
-// Fibonacci(0) = 0
-// Fibonacci(1) = 1
-// Fibonacci(2) = 1
-// Fibonacci(3) = 2
-// ...
-// The algorithm is based on paper by Hans Boehm et al:
-// https://www.cs.rit.edu/usr/local/pub/jeh/courses/QUARTERS/FP/Labs/CedarRope/rope-paper.pdf
-// In this paper authors shows that rebalancing based on cord forest of already
-// balanced subtrees can be proven to never produce tree of depth larger than
-// largest Fibonacci number representable in the same integral type as cord size
-// For 64 bit integers this is the 93rd Fibonacci number. For 32 bit integrals
-// this is 47th Fibonacci number.
-constexpr size_t MaxCordDepth() { return sizeof(size_t) == 8 ? 93 : 47; }
-
-// This class models fixed max size stack of CordRep pointers.
-// The elements are being pushed back and popped from the back.
-template <typename CordRepPtr, size_t N>
-class CordTreePath {
- public:
- CordTreePath() {}
- explicit CordTreePath(CordRepPtr root) { push_back(root); }
-
- bool empty() const { return size_ == 0; }
- size_t size() const { return size_; }
- void clear() { size_ = 0; }
-
- CordRepPtr back() { return data_[size_ - 1]; }
-
- void pop_back() {
- --size_;
- assert(size_ < N);
- }
- void push_back(CordRepPtr elem) { data_[size_++] = elem; }
-
- private:
- CordRepPtr data_[N];
- size_t size_ = 0;
-};
-
-// Fixed length container for mutable "path" in cord tree, which can hold any
-// possible valid path in cord tree.
-using CordTreeMutablePath = CordTreePath<CordRep*, MaxCordDepth()>;
-// Variable length container for mutable "path" in cord tree. It starts with
-// capacity for 15 elements and grow if necessary.
-using CordTreeDynamicPath =
- absl::InlinedVector<absl::cord_internal::CordRep*, 15>;
-} // namespace cord_internal
-
-// A Cord is a sequence of characters.
class Cord {
private:
template <typename T>
using EnableIfString =
absl::enable_if_t<std::is_same<T, std::string>::value, int>;
- //----------------------------------------------------------------------------
- // Cord::GenericChunkIterator
- //----------------------------------------------------------------------------
- //
- // A `Cord::GenericChunkIterator` provides an interface for the standard
- // `Cord::ChunkIterator` as well as some private implementations.
- template <typename StorageType>
- class GenericChunkIterator {
- public:
- using iterator_category = std::input_iterator_tag;
- using value_type = absl::string_view;
- using difference_type = ptrdiff_t;
- using pointer = const value_type*;
- using reference = value_type;
-
- GenericChunkIterator() = default;
-
- GenericChunkIterator& operator++();
- GenericChunkIterator operator++(int);
- bool operator==(const GenericChunkIterator& other) const;
- bool operator!=(const GenericChunkIterator& other) const;
- reference operator*() const;
- pointer operator->() const;
-
- friend class Cord;
- friend class CharIterator;
-
- private:
- // Constructs a `begin()` iterator from `cord`.
- explicit GenericChunkIterator(const Cord* cord);
-
- // Removes `n` bytes from `current_chunk_`. Expects `n` to be smaller than
- // `current_chunk_.size()`.
- void RemoveChunkPrefix(size_t n);
- Cord AdvanceAndReadBytes(size_t n);
- void AdvanceBytes(size_t n);
- // Iterates `n` bytes, where `n` is expected to be greater than or equal to
- // `current_chunk_.size()`.
- void AdvanceBytesSlowPath(size_t n);
-
- // A view into bytes of the current `CordRep`. It may only be a view to a
- // suffix of bytes if this is being used by `CharIterator`.
- absl::string_view current_chunk_;
- // The current leaf, or `nullptr` if the iterator points to short data.
- // If the current chunk is a substring node, current_leaf_ points to the
- // underlying flat or external node.
- cord_internal::CordRep* current_leaf_ = nullptr;
- // The number of bytes left in the `Cord` over which we are iterating.
- size_t bytes_remaining_ = 0;
- StorageType stack_of_right_children_;
- };
- template <typename IteratorType>
- class GenericChunkRange {
- public:
- explicit GenericChunkRange(const Cord* cord) : cord_(cord) {}
-
- IteratorType begin() const { return IteratorType(cord_); }
- IteratorType end() const { return IteratorType(); }
-
- private:
- const Cord* cord_;
- };
-
public:
// Cord::Cord() Constructors
@@ -385,7 +261,7 @@
// Determines whether the given Cord is empty, returning `true` is so.
bool empty() const;
- // Cord:EstimatedMemoryUsage()
+ // Cord::EstimatedMemoryUsage()
//
// Returns the *approximate* number of bytes held in full or in part by this
// Cord (which may not remain the same between invocations). Note that Cords
@@ -464,8 +340,51 @@
// * The iterator keeps state that can grow for Cords that contain many
// nodes and are imbalanced due to sharing. Prefer to pass this type by
// const reference instead of by value.
- using ChunkIterator =
- GenericChunkIterator<cord_internal::CordTreeDynamicPath>;
+ class ChunkIterator {
+ public:
+ using iterator_category = std::input_iterator_tag;
+ using value_type = absl::string_view;
+ using difference_type = ptrdiff_t;
+ using pointer = const value_type*;
+ using reference = value_type;
+
+ ChunkIterator() = default;
+
+ ChunkIterator& operator++();
+ ChunkIterator operator++(int);
+ bool operator==(const ChunkIterator& other) const;
+ bool operator!=(const ChunkIterator& other) const;
+ reference operator*() const;
+ pointer operator->() const;
+
+ friend class Cord;
+ friend class CharIterator;
+
+ private:
+ // Constructs a `begin()` iterator from `cord`.
+ explicit ChunkIterator(const Cord* cord);
+
+ // Removes `n` bytes from `current_chunk_`. Expects `n` to be smaller than
+ // `current_chunk_.size()`.
+ void RemoveChunkPrefix(size_t n);
+ Cord AdvanceAndReadBytes(size_t n);
+ void AdvanceBytes(size_t n);
+ // Iterates `n` bytes, where `n` is expected to be greater than or equal to
+ // `current_chunk_.size()`.
+ void AdvanceBytesSlowPath(size_t n);
+
+ // A view into bytes of the current `CordRep`. It may only be a view to a
+ // suffix of bytes if this is being used by `CharIterator`.
+ absl::string_view current_chunk_;
+ // The current leaf, or `nullptr` if the iterator points to short data.
+ // If the current chunk is a substring node, current_leaf_ points to the
+ // underlying flat or external node.
+ absl::cord_internal::CordRep* current_leaf_ = nullptr;
+ // The number of bytes left in the `Cord` over which we are iterating.
+ size_t bytes_remaining_ = 0;
+ absl::InlinedVector<absl::cord_internal::CordRep*, 4>
+ stack_of_right_children_;
+ };
// Cord::ChunkIterator::chunk_begin()
//
@@ -504,7 +423,16 @@
//
// Implementation note: `ChunkRange` is simply a convenience wrapper over
// `Cord::chunk_begin()` and `Cord::chunk_end()`.
- using ChunkRange = GenericChunkRange<ChunkIterator>;
+ class ChunkRange {
+ public:
+ explicit ChunkRange(const Cord* cord) : cord_(cord) {}
+
+ ChunkIterator begin() const;
+ ChunkIterator end() const;
+
+ private:
+ const Cord* cord_;
+ };
// Cord::Chunks()
//
@@ -683,10 +611,22 @@
// If the cord was already flat, the contents are not modified.
absl::string_view Flatten();
+ // Support absl::Cord as a sink object for absl::Format().
+ friend void AbslFormatFlush(absl::Cord* cord, absl::string_view part) {
+ cord->Append(part);
+ }
+
+ template <typename H>
+ friend H AbslHashValue(H hash_state, const absl::Cord& c) {
+ absl::optional<absl::string_view> maybe_flat = c.TryFlat();
+ if (maybe_flat.has_value()) {
+ return H::combine(std::move(hash_state), *maybe_flat);
+ }
+ return c.HashFragmented(std::move(hash_state));
+ }
+
private:
friend class CordTestPeer;
- template <typename H>
- friend H absl::hash_internal::HashFragmentedCord(H, const Cord&);
friend bool operator==(const Cord& lhs, const Cord& rhs);
friend bool operator==(const Cord& lhs, absl::string_view rhs);
@@ -702,16 +642,15 @@
// class so that we can isolate the bulk of cord.cc from changes
// to the representation.
//
- // InlineRep holds either either a tree pointer, or an array of kMaxInline
- // bytes.
+ // InlineRep holds either a tree pointer, or an array of kMaxInline bytes.
class InlineRep {
public:
- static const unsigned char kMaxInline = 15;
+ static constexpr unsigned char kMaxInline = 15;
static_assert(kMaxInline >= sizeof(absl::cord_internal::CordRep*), "");
// Tag byte & kMaxInline means we are storing a pointer.
- static const unsigned char kTreeFlag = 1 << 4;
+ static constexpr unsigned char kTreeFlag = 1 << 4;
// Tag byte & kProfiledFlag means we are profiling the Cord.
- static const unsigned char kProfiledFlag = 1 << 5;
+ static constexpr unsigned char kProfiledFlag = 1 << 5;
constexpr InlineRep() : data_{} {}
InlineRep(const InlineRep& src);
@@ -800,14 +739,6 @@
static bool GetFlatAux(absl::cord_internal::CordRep* rep,
absl::string_view* fragment);
- // Iterators for use inside Cord implementation
- using InternalChunkIterator =
- GenericChunkIterator<cord_internal::CordTreeMutablePath>;
- using InternalChunkRange = GenericChunkRange<InternalChunkIterator>;
-
- InternalChunkIterator internal_chunk_begin() const;
- InternalChunkRange InternalChunks() const;
-
// Helper for ForEachChunk()
static void ForEachChunkAux(
absl::cord_internal::CordRep* rep,
@@ -840,12 +771,18 @@
// Helper for Append()
template <typename C>
void AppendImpl(C&& src);
-};
-extern template class Cord::GenericChunkIterator<
- cord_internal::CordTreeMutablePath>;
-extern template class Cord::GenericChunkIterator<
- cord_internal::CordTreeDynamicPath>;
+ // Helper for AbslHashValue()
+ template <typename H>
+ H HashFragmented(H hash_state) const {
+ typename H::AbslInternalPiecewiseCombiner combiner;
+ ForEachChunk([&combiner, &hash_state](absl::string_view chunk) {
+ hash_state = combiner.add_buffer(std::move(hash_state), chunk.data(),
+ chunk.size());
+ });
+ return H::combine(combiner.finalize(std::move(hash_state)), size());
+ }
+};
ABSL_NAMESPACE_END
} // namespace absl
@@ -1186,9 +1123,7 @@
return EqualsImpl(rhs, rhs_size);
}
-template <typename StorageType>
-inline Cord::GenericChunkIterator<StorageType>::GenericChunkIterator(
- const Cord* cord)
+inline Cord::ChunkIterator::ChunkIterator(const Cord* cord)
: bytes_remaining_(cord->size()) {
if (cord->empty()) return;
if (cord->contents_.is_tree()) {
@@ -1199,50 +1134,37 @@
}
}
-template <typename StorageType>
-inline Cord::GenericChunkIterator<StorageType>
-Cord::GenericChunkIterator<StorageType>::operator++(int) {
- GenericChunkIterator tmp(*this);
+inline Cord::ChunkIterator Cord::ChunkIterator::operator++(int) {
+ ChunkIterator tmp(*this);
operator++();
return tmp;
}
-template <typename StorageType>
-inline bool Cord::GenericChunkIterator<StorageType>::operator==(
- const GenericChunkIterator<StorageType>& other) const {
+inline bool Cord::ChunkIterator::operator==(const ChunkIterator& other) const {
return bytes_remaining_ == other.bytes_remaining_;
}
-template <typename StorageType>
-inline bool Cord::GenericChunkIterator<StorageType>::operator!=(
- const GenericChunkIterator<StorageType>& other) const {
+inline bool Cord::ChunkIterator::operator!=(const ChunkIterator& other) const {
return !(*this == other);
}
-template <typename StorageType>
-inline typename Cord::GenericChunkIterator<StorageType>::reference
-Cord::GenericChunkIterator<StorageType>::operator*() const {
+inline Cord::ChunkIterator::reference Cord::ChunkIterator::operator*() const {
ABSL_HARDENING_ASSERT(bytes_remaining_ != 0);
return current_chunk_;
}
-template <typename StorageType>
-inline typename Cord::GenericChunkIterator<StorageType>::pointer
-Cord::GenericChunkIterator<StorageType>::operator->() const {
+inline Cord::ChunkIterator::pointer Cord::ChunkIterator::operator->() const {
ABSL_HARDENING_ASSERT(bytes_remaining_ != 0);
return ¤t_chunk_;
}
-template <typename StorageType>
-inline void Cord::GenericChunkIterator<StorageType>::RemoveChunkPrefix(
- size_t n) {
+inline void Cord::ChunkIterator::RemoveChunkPrefix(size_t n) {
assert(n < current_chunk_.size());
current_chunk_.remove_prefix(n);
bytes_remaining_ -= n;
}
-template <typename StorageType>
-inline void Cord::GenericChunkIterator<StorageType>::AdvanceBytes(size_t n) {
+inline void Cord::ChunkIterator::AdvanceBytes(size_t n) {
if (ABSL_PREDICT_TRUE(n < current_chunk_.size())) {
RemoveChunkPrefix(n);
} else if (n != 0) {
@@ -1256,6 +1178,14 @@
inline Cord::ChunkIterator Cord::chunk_end() const { return ChunkIterator(); }
+inline Cord::ChunkIterator Cord::ChunkRange::begin() const {
+ return cord_->chunk_begin();
+}
+
+inline Cord::ChunkIterator Cord::ChunkRange::end() const {
+ return cord_->chunk_end();
+}
+
inline Cord::ChunkRange Cord::Chunks() const { return ChunkRange(this); }
inline Cord::CharIterator& Cord::CharIterator::operator++() {
diff --git a/absl/strings/cord_test.cc b/absl/strings/cord_test.cc
index 0ec93b4..336cedd 100644
--- a/absl/strings/cord_test.cc
+++ b/absl/strings/cord_test.cc
@@ -22,6 +22,7 @@
#include "absl/container/fixed_array.h"
#include "absl/strings/cord_test_helpers.h"
#include "absl/strings/str_cat.h"
+#include "absl/strings/str_format.h"
#include "absl/strings/string_view.h"
typedef std::mt19937_64 RandomEngine;
@@ -1403,53 +1404,6 @@
VerifyChunkIterator(subcords, 128);
}
-TEST(CordChunkIterator, MaxLengthFullTree) {
- // Start with a 1-byte cord, and then double its length in a loop. We should
- // be able to do this until the point where we would overflow size_t.
-
- absl::Cord cord;
- size_t size = 1;
- AddExternalMemory("x", &cord);
- EXPECT_EQ(cord.size(), size);
-
- const int kCordLengthDoublingLimit = std::numeric_limits<size_t>::digits - 1;
- for (int i = 0; i < kCordLengthDoublingLimit; ++i) {
- cord.Prepend(absl::Cord(cord));
- size <<= 1;
-
- EXPECT_EQ(cord.size(), size);
-
- auto chunk_it = cord.chunk_begin();
- EXPECT_EQ(*chunk_it, "x");
- }
-
- EXPECT_DEATH_IF_SUPPORTED(
- (cord.Prepend(absl::Cord(cord)), *cord.chunk_begin()),
- "Cord is too long");
-}
-
-TEST(CordChunkIterator, MaxDepth) {
- // By reusing nodes, it's possible in pathological cases to build a Cord that
- // exceeds both the maximum permissible length and depth. In this case, the
- // violation of the maximum depth is reported.
- absl::Cord left_child;
- AddExternalMemory("x", &left_child);
- absl::Cord root = left_child;
-
- for (int i = 0; i < absl::cord_internal::MaxCordDepth() - 2; ++i) {
- size_t new_size = left_child.size() + root.size();
- root.Prepend(left_child);
- EXPECT_EQ(root.size(), new_size);
-
- auto chunk_it = root.chunk_begin();
- EXPECT_EQ(*chunk_it, "x");
-
- std::swap(left_child, root);
- }
-
- EXPECT_DEATH_IF_SUPPORTED(root.Prepend(left_child), "Cord is too long");
-}
-
TEST(CordCharIterator, Traits) {
static_assert(std::is_copy_constructible<absl::Cord::CharIterator>::value,
"");
@@ -1629,6 +1583,14 @@
}
}
+TEST(Cord, Format) {
+ absl::Cord c;
+ absl::Format(&c, "There were %04d little %s.", 3, "pigs");
+ EXPECT_EQ(c, "There were 0003 little pigs.");
+ absl::Format(&c, "And %-3llx bad wolf!", 1);
+ EXPECT_EQ(c, "There were 0003 little pigs.And 1 bad wolf!");
+}
+
TEST(CordDeathTest, Hardening) {
absl::Cord cord("hello");
// These statement should abort the program in all builds modes.
diff --git a/absl/strings/internal/str_format/arg.cc b/absl/strings/internal/str_format/arg.cc
index 3aa0296..1284227 100644
--- a/absl/strings/internal/str_format/arg.cc
+++ b/absl/strings/internal/str_format/arg.cc
@@ -12,14 +12,13 @@
#include "absl/base/port.h"
#include "absl/strings/internal/str_format/float_conversion.h"
+#include "absl/strings/numbers.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace str_format_internal {
namespace {
-const char kDigit[2][32] = { "0123456789abcdef", "0123456789ABCDEF" };
-
// Reduce *capacity by s.size(), clipped to a 0 minimum.
void ReducePadding(string_view s, size_t *capacity) {
*capacity = Excess(s.size(), *capacity);
@@ -48,94 +47,144 @@
template <>
struct IsSigned<absl::uint128> : std::false_type {};
-class ConvertedIntInfo {
+// Integral digit printer.
+// Call one of the PrintAs* routines after construction once.
+// Use with_neg_and_zero/without_neg_or_zero/is_negative to access the results.
+class IntDigits {
public:
+ // Print the unsigned integer as octal.
+ // Supports unsigned integral types and uint128.
template <typename T>
- ConvertedIntInfo(T v, ConversionChar conv) {
- using Unsigned = typename MakeUnsigned<T>::type;
- auto u = static_cast<Unsigned>(v);
- if (IsNeg(v)) {
- is_neg_ = true;
- u = Unsigned{} - u;
- } else {
- is_neg_ = false;
- }
- UnsignedToStringRight(u, conv);
+ void PrintAsOct(T v) {
+ static_assert(!IsSigned<T>::value, "");
+ char *p = storage_ + sizeof(storage_);
+ do {
+ *--p = static_cast<char>('0' + (static_cast<size_t>(v) & 7));
+ v >>= 3;
+ } while (v);
+ start_ = p;
+ size_ = storage_ + sizeof(storage_) - p;
}
- string_view digits() const {
- return {end() - size_, static_cast<size_t>(size_)};
+ // Print the signed or unsigned integer as decimal.
+ // Supports all integral types.
+ template <typename T>
+ void PrintAsDec(T v) {
+ static_assert(std::is_integral<T>::value, "");
+ start_ = storage_;
+ size_ = numbers_internal::FastIntToBuffer(v, storage_) - storage_;
}
- bool is_neg() const { return is_neg_; }
+
+ void PrintAsDec(int128 v) {
+ auto u = static_cast<uint128>(v);
+ bool add_neg = false;
+ if (v < 0) {
+ add_neg = true;
+ u = uint128{} - u;
+ }
+ PrintAsDec(u, add_neg);
+ }
+
+ void PrintAsDec(uint128 v, bool add_neg = false) {
+ // This function can be sped up if needed. We can call FastIntToBuffer
+ // twice, or fix FastIntToBuffer to support uint128.
+ char *p = storage_ + sizeof(storage_);
+ do {
+ p -= 2;
+ numbers_internal::PutTwoDigits(static_cast<size_t>(v % 100), p);
+ v /= 100;
+ } while (v);
+ if (p[0] == '0') {
+ // We printed one too many hexits.
+ ++p;
+ }
+ if (add_neg) {
+ *--p = '-';
+ }
+ size_ = storage_ + sizeof(storage_) - p;
+ start_ = p;
+ }
+
+ // Print the unsigned integer as hex using lowercase.
+ // Supports unsigned integral types and uint128.
+ template <typename T>
+ void PrintAsHexLower(T v) {
+ static_assert(!IsSigned<T>::value, "");
+ char *p = storage_ + sizeof(storage_);
+
+ do {
+ p -= 2;
+ constexpr const char* table = numbers_internal::kHexTable;
+ std::memcpy(p, table + 2 * (static_cast<size_t>(v) & 0xFF), 2);
+ if (sizeof(T) == 1) break;
+ v >>= 8;
+ } while (v);
+ if (p[0] == '0') {
+ // We printed one too many digits.
+ ++p;
+ }
+ start_ = p;
+ size_ = storage_ + sizeof(storage_) - p;
+ }
+
+ // Print the unsigned integer as hex using uppercase.
+ // Supports unsigned integral types and uint128.
+ template <typename T>
+ void PrintAsHexUpper(T v) {
+ static_assert(!IsSigned<T>::value, "");
+ char *p = storage_ + sizeof(storage_);
+
+ // kHexTable is only lowercase, so do it manually for uppercase.
+ do {
+ *--p = "0123456789ABCDEF"[static_cast<size_t>(v) & 15];
+ v >>= 4;
+ } while (v);
+ start_ = p;
+ size_ = storage_ + sizeof(storage_) - p;
+ }
+
+ // The printed value including the '-' sign if available.
+ // For inputs of value `0`, this will return "0"
+ string_view with_neg_and_zero() const { return {start_, size_}; }
+
+ // The printed value not including the '-' sign.
+ // For inputs of value `0`, this will return "".
+ string_view without_neg_or_zero() const {
+ static_assert('-' < '0', "The check below verifies both.");
+ size_t advance = start_[0] <= '0' ? 1 : 0;
+ return {start_ + advance, size_ - advance};
+ }
+
+ bool is_negative() const { return start_[0] == '-'; }
private:
- template <typename T, bool IsSigned>
- struct IsNegImpl {
- static bool Eval(T v) { return v < 0; }
- };
- template <typename T>
- struct IsNegImpl<T, false> {
- static bool Eval(T) {
- return false;
- }
- };
-
- template <typename T>
- bool IsNeg(T v) {
- return IsNegImpl<T, IsSigned<T>::value>::Eval(v);
- }
-
- template <typename T>
- void UnsignedToStringRight(T u, ConversionChar conv) {
- char *p = end();
- switch (FormatConversionCharRadix(conv)) {
- default:
- case 10:
- for (; u; u /= 10)
- *--p = static_cast<char>('0' + static_cast<size_t>(u % 10));
- break;
- case 8:
- for (; u; u /= 8)
- *--p = static_cast<char>('0' + static_cast<size_t>(u % 8));
- break;
- case 16: {
- const char *digits = kDigit[FormatConversionCharIsUpper(conv) ? 1 : 0];
- for (; u; u /= 16) *--p = digits[static_cast<size_t>(u % 16)];
- break;
- }
- }
- size_ = static_cast<int>(end() - p);
- }
-
- const char *end() const { return storage_ + sizeof(storage_); }
- char *end() { return storage_ + sizeof(storage_); }
-
- bool is_neg_;
- int size_;
- // Max size: 128 bit value as octal -> 43 digits
- char storage_[128 / 3 + 1];
+ const char *start_;
+ size_t size_;
+ // Max size: 128 bit value as octal -> 43 digits, plus sign char
+ char storage_[128 / 3 + 1 + 1];
};
// Note: 'o' conversions do not have a base indicator, it's just that
// the '#' flag is specified to modify the precision for 'o' conversions.
-string_view BaseIndicator(const ConvertedIntInfo &info,
+string_view BaseIndicator(const IntDigits &as_digits,
const ConversionSpec conv) {
- bool alt = conv.has_alt_flag();
- int radix = FormatConversionCharRadix(conv.conversion_char());
- if (conv.conversion_char() == ConversionChar::p)
- alt = true; // always show 0x for %p.
+ // always show 0x for %p.
+ bool alt = conv.has_alt_flag() || conv.conversion_char() == ConversionChar::p;
+ bool hex = (conv.conversion_char() == FormatConversionChar::x ||
+ conv.conversion_char() == FormatConversionChar::X ||
+ conv.conversion_char() == FormatConversionChar::p);
// From the POSIX description of '#' flag:
// "For x or X conversion specifiers, a non-zero result shall have
// 0x (or 0X) prefixed to it."
- if (alt && radix == 16 && !info.digits().empty()) {
- if (FormatConversionCharIsUpper(conv.conversion_char())) return "0X";
- return "0x";
+ if (alt && hex && !as_digits.without_neg_or_zero().empty()) {
+ return conv.conversion_char() == FormatConversionChar::X ? "0X" : "0x";
}
return {};
}
string_view SignColumn(bool neg, const ConversionSpec conv) {
- if (FormatConversionCharIsSigned(conv.conversion_char())) {
+ if (conv.conversion_char() == FormatConversionChar::d ||
+ conv.conversion_char() == FormatConversionChar::i) {
if (neg) return "-";
if (conv.has_show_pos_flag()) return "+";
if (conv.has_sign_col_flag()) return " ";
@@ -154,20 +203,20 @@
return true;
}
-bool ConvertIntImplInner(const ConvertedIntInfo &info,
- const ConversionSpec conv, FormatSinkImpl *sink) {
+bool ConvertIntImplInnerSlow(const IntDigits &as_digits,
+ const ConversionSpec conv, FormatSinkImpl *sink) {
// Print as a sequence of Substrings:
// [left_spaces][sign][base_indicator][zeroes][formatted][right_spaces]
size_t fill = 0;
if (conv.width() >= 0) fill = conv.width();
- string_view formatted = info.digits();
+ string_view formatted = as_digits.without_neg_or_zero();
ReducePadding(formatted, &fill);
- string_view sign = SignColumn(info.is_neg(), conv);
+ string_view sign = SignColumn(as_digits.is_negative(), conv);
ReducePadding(sign, &fill);
- string_view base_indicator = BaseIndicator(info, conv);
+ string_view base_indicator = BaseIndicator(as_digits, conv);
ReducePadding(base_indicator, &fill);
int precision = conv.precision();
@@ -209,34 +258,53 @@
}
template <typename T>
-bool ConvertIntImplInner(T v, const ConversionSpec conv, FormatSinkImpl *sink) {
- ConvertedIntInfo info(v, conv.conversion_char());
- if (conv.is_basic() && (conv.conversion_char() != ConversionChar::p)) {
- if (info.is_neg()) sink->Append(1, '-');
- if (info.digits().empty()) {
- sink->Append(1, '0');
- } else {
- sink->Append(info.digits());
- }
+bool ConvertIntArg(T v, const ConversionSpec conv, FormatSinkImpl *sink) {
+ using U = typename MakeUnsigned<T>::type;
+ IntDigits as_digits;
+
+ switch (conv.conversion_char()) {
+ case FormatConversionChar::c:
+ return ConvertCharImpl(static_cast<unsigned char>(v), conv, sink);
+
+ case FormatConversionChar::o:
+ as_digits.PrintAsOct(static_cast<U>(v));
+ break;
+
+ case FormatConversionChar::x:
+ as_digits.PrintAsHexLower(static_cast<U>(v));
+ break;
+ case FormatConversionChar::X:
+ as_digits.PrintAsHexUpper(static_cast<U>(v));
+ break;
+
+ case FormatConversionChar::u:
+ as_digits.PrintAsDec(static_cast<U>(v));
+ break;
+
+ case FormatConversionChar::d:
+ case FormatConversionChar::i:
+ as_digits.PrintAsDec(v);
+ break;
+
+ case FormatConversionChar::a:
+ case FormatConversionChar::e:
+ case FormatConversionChar::f:
+ case FormatConversionChar::g:
+ case FormatConversionChar::A:
+ case FormatConversionChar::E:
+ case FormatConversionChar::F:
+ case FormatConversionChar::G:
+ return ConvertFloatImpl(static_cast<double>(v), conv, sink);
+
+ default:
+ return false;
+ }
+
+ if (conv.is_basic()) {
+ sink->Append(as_digits.with_neg_and_zero());
return true;
}
- return ConvertIntImplInner(info, conv, sink);
-}
-
-template <typename T>
-bool ConvertIntArg(T v, const ConversionSpec conv, FormatSinkImpl *sink) {
- if (FormatConversionCharIsFloat(conv.conversion_char())) {
- return FormatConvertImpl(static_cast<double>(v), conv, sink).value;
- }
- if (conv.conversion_char() == ConversionChar::c)
- return ConvertCharImpl(static_cast<unsigned char>(v), conv, sink);
- if (!FormatConversionCharIsIntegral(conv.conversion_char())) return false;
- if (!FormatConversionCharIsSigned(conv.conversion_char()) &&
- IsSigned<T>::value) {
- using U = typename MakeUnsigned<T>::type;
- return FormatConvertImpl(static_cast<U>(v), conv, sink).value;
- }
- return ConvertIntImplInner(v, conv, sink);
+ return ConvertIntImplInnerSlow(as_digits, conv, sink);
}
template <typename T>
@@ -296,7 +364,9 @@
sink->Append("(nil)");
return {true};
}
- return {ConvertIntImplInner(v.value, conv, sink)};
+ IntDigits as_digits;
+ as_digits.PrintAsHexLower(v.value);
+ return {ConvertIntImplInnerSlow(as_digits, conv, sink)};
}
// ==================== Floats ====================
diff --git a/absl/strings/internal/str_format/bind.h b/absl/strings/internal/str_format/bind.h
index ee4475e..d30fdf5 100644
--- a/absl/strings/internal/str_format/bind.h
+++ b/absl/strings/internal/str_format/bind.h
@@ -60,7 +60,7 @@
size_t size_;
};
-template <typename T, typename...>
+template <typename T, FormatConversionCharSet...>
struct MakeDependent {
using type = T;
};
@@ -68,7 +68,7 @@
// Implicitly convertible from `const char*`, `string_view`, and the
// `ExtendedParsedFormat` type. This abstraction allows all format functions to
// operate on any without providing too many overloads.
-template <typename... Args>
+template <FormatConversionCharSet... Args>
class FormatSpecTemplate
: public MakeDependent<UntypedFormatSpec, Args...>::type {
using Base = typename MakeDependent<UntypedFormatSpec, Args...>::type;
@@ -105,13 +105,11 @@
// Good format overload.
FormatSpecTemplate(const char* s) // NOLINT
- __attribute__((enable_if(ValidFormatImpl<ArgumentToConv<Args>()...>(s),
- "bad format trap")))
+ __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
: Base(s) {}
FormatSpecTemplate(string_view s) // NOLINT
- __attribute__((enable_if(ValidFormatImpl<ArgumentToConv<Args>()...>(s),
- "bad format trap")))
+ __attribute__((enable_if(ValidFormatImpl<Args...>(s), "bad format trap")))
: Base(s) {}
#else // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
@@ -121,19 +119,14 @@
#endif // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
- template <Conv... C, typename = typename std::enable_if<
- AllOf(sizeof...(C) == sizeof...(Args),
- Contains(ArgumentToConv<Args>(),
- C)...)>::type>
+ template <Conv... C,
+ typename = typename std::enable_if<
+ AllOf(sizeof...(C) == sizeof...(Args), Contains(Args,
+ C)...)>::type>
FormatSpecTemplate(const ExtendedParsedFormat<C...>& pc) // NOLINT
: Base(&pc) {}
};
-template <typename... Args>
-struct FormatSpecDeductionBarrier {
- using type = FormatSpecTemplate<Args...>;
-};
-
class Streamable {
public:
Streamable(const UntypedFormatSpecImpl& format,
diff --git a/absl/strings/internal/str_format/extension.h b/absl/strings/internal/str_format/extension.h
index bae2c07..fb31a9d 100644
--- a/absl/strings/internal/str_format/extension.h
+++ b/absl/strings/internal/str_format/extension.h
@@ -170,21 +170,6 @@
return FormatConversionChar::kNone;
}
-inline int FormatConversionCharRadix(FormatConversionChar c) {
- switch (c) {
- case FormatConversionChar::x:
- case FormatConversionChar::X:
- case FormatConversionChar::a:
- case FormatConversionChar::A:
- case FormatConversionChar::p:
- return 16;
- case FormatConversionChar::o:
- return 8;
- default:
- return 10;
- }
-}
-
inline bool FormatConversionCharIsUpper(FormatConversionChar c) {
switch (c) {
case FormatConversionChar::X:
@@ -198,30 +183,6 @@
}
}
-inline bool FormatConversionCharIsSigned(FormatConversionChar c) {
- switch (c) {
- case FormatConversionChar::d:
- case FormatConversionChar::i:
- return true;
- default:
- return false;
- }
-}
-
-inline bool FormatConversionCharIsIntegral(FormatConversionChar c) {
- switch (c) {
- case FormatConversionChar::d:
- case FormatConversionChar::i:
- case FormatConversionChar::u:
- case FormatConversionChar::o:
- case FormatConversionChar::x:
- case FormatConversionChar::X:
- return true;
- default:
- return false;
- }
-}
-
inline bool FormatConversionCharIsFloat(FormatConversionChar c) {
switch (c) {
case FormatConversionChar::a:
diff --git a/absl/strings/internal/str_format/extension_test.cc b/absl/strings/internal/str_format/extension_test.cc
index 4e23fef..561eaa3 100644
--- a/absl/strings/internal/str_format/extension_test.cc
+++ b/absl/strings/internal/str_format/extension_test.cc
@@ -19,9 +19,26 @@
#include <random>
#include <string>
-#include "absl/strings/str_format.h"
-
#include "gtest/gtest.h"
+#include "absl/strings/str_format.h"
+#include "absl/strings/string_view.h"
+
+namespace my_namespace {
+class UserDefinedType {
+ public:
+ UserDefinedType() = default;
+
+ void Append(absl::string_view str) { value_.append(str.data(), str.size()); }
+ const std::string& Value() const { return value_; }
+
+ friend void AbslFormatFlush(UserDefinedType* x, absl::string_view str) {
+ x->Append(str);
+ }
+
+ private:
+ std::string value_;
+};
+} // namespace my_namespace
namespace {
@@ -63,4 +80,13 @@
EXPECT_EQ(actual, expected);
}
}
+
+TEST(FormatExtensionTest, CustomSink) {
+ my_namespace::UserDefinedType sink;
+ absl::Format(&sink, "There were %04d little %s.", 3, "pigs");
+ EXPECT_EQ("There were 0003 little pigs.", sink.Value());
+ absl::Format(&sink, "And %-3llx bad wolf!", 1);
+ EXPECT_EQ("There were 0003 little pigs.And 1 bad wolf!", sink.Value());
+}
+
} // namespace
diff --git a/absl/strings/internal/str_format/output.h b/absl/strings/internal/str_format/output.h
index 28b288b..8030dae 100644
--- a/absl/strings/internal/str_format/output.h
+++ b/absl/strings/internal/str_format/output.h
@@ -30,9 +30,6 @@
namespace absl {
ABSL_NAMESPACE_BEGIN
-
-class Cord;
-
namespace str_format_internal {
// RawSink implementation that writes into a char* buffer.
@@ -77,12 +74,6 @@
out->write(s.data(), s.size());
}
-template <class AbslCord, typename = typename std::enable_if<
- std::is_same<AbslCord, absl::Cord>::value>::type>
-inline void AbslFormatFlush(AbslCord* out, string_view s) {
- out->Append(s);
-}
-
inline void AbslFormatFlush(FILERawSink* sink, string_view v) {
sink->Write(v);
}
@@ -91,10 +82,11 @@
sink->Write(v);
}
+// This is a SFINAE to get a better compiler error message when the type
+// is not supported.
template <typename T>
-auto InvokeFlush(T* out, string_view s)
- -> decltype(str_format_internal::AbslFormatFlush(out, s)) {
- str_format_internal::AbslFormatFlush(out, s);
+auto InvokeFlush(T* out, string_view s) -> decltype(AbslFormatFlush(out, s)) {
+ AbslFormatFlush(out, s);
}
} // namespace str_format_internal
diff --git a/absl/strings/internal/str_format/output_test.cc b/absl/strings/internal/str_format/output_test.cc
index e54e6f7..ce2e91a 100644
--- a/absl/strings/internal/str_format/output_test.cc
+++ b/absl/strings/internal/str_format/output_test.cc
@@ -19,6 +19,7 @@
#include "gmock/gmock.h"
#include "gtest/gtest.h"
+#include "absl/strings/cord.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
@@ -37,6 +38,12 @@
EXPECT_EQ(str.str(), "ABCDEF");
}
+TEST(InvokeFlush, Cord) {
+ absl::Cord str("ABC");
+ str_format_internal::InvokeFlush(&str, "DEF");
+ EXPECT_EQ(str, "ABCDEF");
+}
+
TEST(BufferRawSink, Limits) {
char buf[16];
{
@@ -70,4 +77,3 @@
} // namespace
ABSL_NAMESPACE_END
} // namespace absl
-
diff --git a/absl/strings/str_format.h b/absl/strings/str_format.h
index d40fca1..f48510b 100644
--- a/absl/strings/str_format.h
+++ b/absl/strings/str_format.h
@@ -57,8 +57,7 @@
// arbitrary sink types:
//
// * A generic `Format()` function to write outputs to arbitrary sink types,
-// which must implement a `RawSinkFormat` interface. (See
-// `str_format_sink.h` for more information.)
+// which must implement a `FormatRawSink` interface.
//
// * A `FormatUntyped()` function that is similar to `Format()` except it is
// loosely typed. `FormatUntyped()` is not a template and does not perform
@@ -255,8 +254,8 @@
// argument, etc.
template <typename... Args>
-using FormatSpec =
- typename str_format_internal::FormatSpecDeductionBarrier<Args...>::type;
+using FormatSpec = str_format_internal::FormatSpecTemplate<
+ str_format_internal::ArgumentToConv<Args>()...>;
// ParsedFormat
//
@@ -432,6 +431,16 @@
//
// FormatRawSink is a type erased wrapper around arbitrary sink objects
// specifically used as an argument to `Format()`.
+//
+// All the object has to do define an overload of `AbslFormatFlush()` for the
+// sink, usually by adding a ADL-based free function in the same namespace as
+// the sink:
+//
+// void AbslFormatFlush(MySink* dest, absl::string_view part);
+//
+// where `dest` is the pointer passed to `absl::Format()`. The function should
+// append `part` to `dest`.
+//
// FormatRawSink does not own the passed sink object. The passed object must
// outlive the FormatRawSink.
class FormatRawSink {
@@ -455,12 +464,13 @@
// `absl::FormatRawSink` interface), using a format string and zero or more
// additional arguments.
//
-// By default, `std::string` and `std::ostream` are supported as destination
-// objects. If a `std::string` is used the formatted string is appended to it.
+// By default, `std::string`, `std::ostream`, and `absl::Cord` are supported as
+// destination objects. If a `std::string` is used the formatted string is
+// appended to it.
//
-// `absl::Format()` is a generic version of `absl::StrFormat(), for custom
-// sinks. The format string, like format strings for `StrFormat()`, is checked
-// at compile-time.
+// `absl::Format()` is a generic version of `absl::StrAppendFormat()`, for
+// custom sinks. The format string, like format strings for `StrFormat()`, is
+// checked at compile-time.
//
// On failure, this function returns `false` and the state of the sink is
// unspecified.
diff --git a/absl/strings/str_split_test.cc b/absl/strings/str_split_test.cc
index be58494..9d93a87 100644
--- a/absl/strings/str_split_test.cc
+++ b/absl/strings/str_split_test.cc
@@ -29,6 +29,8 @@
#include "gtest/gtest.h"
#include "absl/base/dynamic_annotations.h" // for AbslRunningOnValgrind
#include "absl/base/macros.h"
+#include "absl/container/flat_hash_map.h"
+#include "absl/container/node_hash_map.h"
#include "absl/strings/numbers.h"
namespace {
@@ -421,6 +423,18 @@
TestMapConversionOperator<std::multimap<std::string, std::string>>(splitter);
TestMapConversionOperator<std::unordered_map<std::string, std::string>>(
splitter);
+ TestMapConversionOperator<
+ absl::node_hash_map<absl::string_view, absl::string_view>>(splitter);
+ TestMapConversionOperator<
+ absl::node_hash_map<absl::string_view, std::string>>(splitter);
+ TestMapConversionOperator<
+ absl::node_hash_map<std::string, absl::string_view>>(splitter);
+ TestMapConversionOperator<
+ absl::flat_hash_map<absl::string_view, absl::string_view>>(splitter);
+ TestMapConversionOperator<
+ absl::flat_hash_map<absl::string_view, std::string>>(splitter);
+ TestMapConversionOperator<
+ absl::flat_hash_map<std::string, absl::string_view>>(splitter);
// Tests conversion to std::pair
diff --git a/absl/synchronization/internal/mutex_nonprod.cc b/absl/synchronization/internal/mutex_nonprod.cc
index 4590b98..1732f83 100644
--- a/absl/synchronization/internal/mutex_nonprod.cc
+++ b/absl/synchronization/internal/mutex_nonprod.cc
@@ -32,6 +32,10 @@
namespace absl {
ABSL_NAMESPACE_BEGIN
+
+void SetMutexDeadlockDetectionMode(OnDeadlockCycle) {}
+void EnableMutexInvariantDebugging(bool) {}
+
namespace synchronization_internal {
namespace {
diff --git a/absl/synchronization/internal/waiter.h b/absl/synchronization/internal/waiter.h
index a6e6d4c..ae83907 100644
--- a/absl/synchronization/internal/waiter.h
+++ b/absl/synchronization/internal/waiter.h
@@ -101,7 +101,7 @@
// How many periods to remain idle before releasing resources
#ifndef THREAD_SANITIZER
- static const int kIdlePeriods = 60;
+ static constexpr int kIdlePeriods = 60;
#else
// Memory consumption under ThreadSanitizer is a serious concern,
// so we release resources sooner. The value of 1 leads to 1 to 2 second
diff --git a/absl/synchronization/mutex.cc b/absl/synchronization/mutex.cc
index 5f434e1..e994be4 100644
--- a/absl/synchronization/mutex.cc
+++ b/absl/synchronization/mutex.cc
@@ -1439,20 +1439,18 @@
// may spin for a short while if the lock cannot be acquired immediately.
static bool TryAcquireWithSpinning(std::atomic<intptr_t>* mu) {
int c = mutex_globals.spinloop_iterations;
- int result = -1; // result of operation: 0=false, 1=true, -1=unknown
-
do { // do/while somewhat faster on AMD
intptr_t v = mu->load(std::memory_order_relaxed);
- if ((v & (kMuReader|kMuEvent)) != 0) { // a reader or tracing -> give up
- result = 0;
+ if ((v & (kMuReader|kMuEvent)) != 0) {
+ return false; // a reader or tracing -> give up
} else if (((v & kMuWriter) == 0) && // no holder -> try to acquire
mu->compare_exchange_strong(v, kMuWriter | v,
std::memory_order_acquire,
std::memory_order_relaxed)) {
- result = 1;
+ return true;
}
- } while (result == -1 && --c > 0);
- return result == 1;
+ } while (--c > 0);
+ return false;
}
ABSL_XRAY_LOG_ARGS(1) void Mutex::Lock() {
diff --git a/absl/synchronization/mutex.h b/absl/synchronization/mutex.h
index 8c70c4c..961ff52 100644
--- a/absl/synchronization/mutex.h
+++ b/absl/synchronization/mutex.h
@@ -331,17 +331,16 @@
// Mutex::AwaitWithTimeout()
// Mutex::AwaitWithDeadline()
//
- // If `cond` is initially true, do nothing, or act as though `cond` is
- // initially false.
- //
- // If `cond` is initially false, unlock this `Mutex` and block until
- // simultaneously:
+ // Unlocks this `Mutex` and blocks until simultaneously:
// - either `cond` is true or the {timeout has expired, deadline has passed}
// and
// - this `Mutex` can be reacquired,
// then reacquire this `Mutex` in the same mode in which it was previously
// held, returning `true` iff `cond` is `true` on return.
//
+ // If the condition is initially `true`, the implementation *may* skip the
+ // release/re-acquire step and return immediately.
+ //
// Deadlines in the past are equivalent to an immediate deadline.
// Negative timeouts are equivalent to a zero timeout.
//
diff --git a/absl/synchronization/mutex_test.cc b/absl/synchronization/mutex_test.cc
index 3c50119..afb363a 100644
--- a/absl/synchronization/mutex_test.cc
+++ b/absl/synchronization/mutex_test.cc
@@ -817,7 +817,7 @@
// held and then destroyed (w/o unlocking).
#ifdef THREAD_SANITIZER
// TSAN reports errors when locked Mutexes are destroyed.
-TEST(Mutex, DISABLED_LockedMutexDestructionBug) ABSL_NO_THREAD_SAFETY_ANALYSIS {
+TEST(Mutex, DISABLED_LockedMutexDestructionBug) NO_THREAD_SAFETY_ANALYSIS {
#else
TEST(Mutex, LockedMutexDestructionBug) ABSL_NO_THREAD_SAFETY_ANALYSIS {
#endif
@@ -1097,7 +1097,7 @@
absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kAbort);
}
-// This test is tagged with ABSL_NO_THREAD_SAFETY_ANALYSIS because the
+// This test is tagged with NO_THREAD_SAFETY_ANALYSIS because the
// annotation-based static thread-safety analysis is not currently
// predicate-aware and cannot tell if the two for-loops that acquire and
// release the locks have the same predicates.
@@ -1121,7 +1121,7 @@
#ifdef THREAD_SANITIZER
// TSAN reports errors when locked Mutexes are destroyed.
-TEST(Mutex, DISABLED_DeadlockIdBug) ABSL_NO_THREAD_SAFETY_ANALYSIS {
+TEST(Mutex, DISABLED_DeadlockIdBug) NO_THREAD_SAFETY_ANALYSIS {
#else
TEST(Mutex, DeadlockIdBug) ABSL_NO_THREAD_SAFETY_ANALYSIS {
#endif
diff --git a/absl/time/duration.cc b/absl/time/duration.cc
index 1353fa0..f018255 100644
--- a/absl/time/duration.cc
+++ b/absl/time/duration.cc
@@ -732,9 +732,9 @@
// Note: unit.prec is limited to double's digits10 value (typically 15) so it
// always fits in buf[].
void AppendNumberUnit(std::string* out, double n, DisplayUnit unit) {
- const int buf_size = std::numeric_limits<double>::digits10;
- const int prec = std::min(buf_size, unit.prec);
- char buf[buf_size]; // also large enough to hold integer part
+ constexpr int kBufferSize = std::numeric_limits<double>::digits10;
+ const int prec = std::min(kBufferSize, unit.prec);
+ char buf[kBufferSize]; // also large enough to hold integer part
char* ep = buf + sizeof(buf);
double d = 0;
int64_t frac_part = Round(std::modf(n, &d) * unit.pow10);
diff --git a/absl/time/time.h b/absl/time/time.h
index 33a4a63..152f3ff 100644
--- a/absl/time/time.h
+++ b/absl/time/time.h
@@ -1348,8 +1348,8 @@
// it's positive and can be converted to int64_t without risk of UB.
inline Duration MakePosDoubleDuration(double n) {
const int64_t int_secs = static_cast<int64_t>(n);
- const uint32_t ticks =
- static_cast<uint32_t>((n - int_secs) * kTicksPerSecond + 0.5);
+ const uint32_t ticks = static_cast<uint32_t>(
+ (n - static_cast<double>(int_secs)) * kTicksPerSecond + 0.5);
return ticks < kTicksPerSecond
? MakeDuration(int_secs, ticks)
: MakeDuration(int_secs + 1, ticks - kTicksPerSecond);
diff --git a/absl/types/BUILD.bazel b/absl/types/BUILD.bazel
index f2ea9f3..de71c73 100644
--- a/absl/types/BUILD.bazel
+++ b/absl/types/BUILD.bazel
@@ -35,6 +35,7 @@
":bad_any_cast",
"//absl/base:config",
"//absl/base:core_headers",
+ "//absl/base:fast_type_id",
"//absl/meta:type_traits",
"//absl/utility",
],
@@ -215,11 +216,15 @@
"internal/conformance_aliases.h",
"internal/conformance_archetype.h",
"internal/conformance_profile.h",
+ "internal/conformance_testing.h",
+ "internal/conformance_testing_helpers.h",
+ "internal/parentheses.h",
+ "internal/transform_args.h",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
- "//absl/debugging:demangle_internal",
+ "//absl/algorithm:container",
"//absl/meta:type_traits",
"//absl/strings",
"//absl/utility",
diff --git a/absl/types/BUILD.gn b/absl/types/BUILD.gn
index 8dfd06b..42faa90 100644
--- a/absl/types/BUILD.gn
+++ b/absl/types/BUILD.gn
@@ -28,6 +28,7 @@
":bad_any_cast",
"//third_party/abseil-cpp/absl/base:config",
"//third_party/abseil-cpp/absl/base:core_headers",
+ "//third_party/abseil-cpp/absl/base:fast_type_id",
"//third_party/abseil-cpp/absl/meta:type_traits",
"//third_party/abseil-cpp/absl/utility",
]
diff --git a/absl/types/CMakeLists.txt b/absl/types/CMakeLists.txt
index c7c8825..0dc0d2c 100644
--- a/absl/types/CMakeLists.txt
+++ b/absl/types/CMakeLists.txt
@@ -24,6 +24,7 @@
absl::bad_any_cast
absl::config
absl::core_headers
+ absl::fast_type_id
absl::type_traits
absl::utility
PUBLIC
@@ -245,9 +246,14 @@
"internal/conformance_aliases.h"
"internal/conformance_archetype.h"
"internal/conformance_profile.h"
+ "internal/conformance_testing.h"
+ "internal/conformance_testing_helpers.h"
+ "internal/parentheses.h"
+ "internal/transform_args.h"
COPTS
${ABSL_DEFAULT_COPTS}
DEPS
+ absl::algorithm
absl::debugging
absl::type_traits
absl::strings
@@ -281,6 +287,7 @@
${ABSL_TEST_COPTS}
DEPS
absl::conformance_testing
+ absl::type_traits
gmock_main
)
diff --git a/absl/types/any.h b/absl/types/any.h
index 16bda79..7eed519 100644
--- a/absl/types/any.h
+++ b/absl/types/any.h
@@ -80,6 +80,7 @@
#include <typeinfo>
#include <utility>
+#include "absl/base/internal/fast_type_id.h"
#include "absl/base/macros.h"
#include "absl/meta/type_traits.h"
#include "absl/types/bad_any_cast.h"
@@ -95,26 +96,6 @@
namespace absl {
ABSL_NAMESPACE_BEGIN
-namespace any_internal {
-
-template <typename Type>
-struct TypeTag {
- constexpr static char dummy_var = 0;
-};
-
-template <typename Type>
-constexpr char TypeTag<Type>::dummy_var;
-
-// FastTypeId<Type>() evaluates at compile/link-time to a unique pointer for the
-// passed in type. These are meant to be good match for keys into maps or
-// straight up comparisons.
-template<typename Type>
-constexpr inline const void* FastTypeId() {
- return &TypeTag<Type>::dummy_var;
-}
-
-} // namespace any_internal
-
class any;
// swap()
@@ -423,11 +404,11 @@
using NormalizedType =
typename std::remove_cv<typename std::remove_reference<T>::type>::type;
- return any_internal::FastTypeId<NormalizedType>();
+ return base_internal::FastTypeId<NormalizedType>();
}
const void* GetObjTypeId() const {
- return obj_ ? obj_->ObjTypeId() : any_internal::FastTypeId<void>();
+ return obj_ ? obj_->ObjTypeId() : base_internal::FastTypeId<void>();
}
// `absl::any` nonmember functions //
diff --git a/absl/types/internal/conformance_profile.h b/absl/types/internal/conformance_profile.h
index e62004f..cf64ff4 100644
--- a/absl/types/internal/conformance_profile.h
+++ b/absl/types/internal/conformance_profile.h
@@ -36,10 +36,19 @@
#ifndef ABSL_TYPES_INTERNAL_CONFORMANCE_PROFILE_H_
#define ABSL_TYPES_INTERNAL_CONFORMANCE_PROFILE_H_
+#include <set>
#include <type_traits>
#include <utility>
+#include <vector>
+#include "gtest/gtest.h"
+#include "absl/algorithm/container.h"
#include "absl/meta/type_traits.h"
+#include "absl/strings/ascii.h"
+#include "absl/strings/str_cat.h"
+#include "absl/strings/string_view.h"
+#include "absl/types/internal/conformance_testing_helpers.h"
+#include "absl/utility/utility.h"
// TODO(calabrese) Add support for extending profiles.
@@ -47,6 +56,187 @@
ABSL_NAMESPACE_BEGIN
namespace types_internal {
+// Converts an enum to its underlying integral value.
+template <typename Enum>
+constexpr absl::underlying_type_t<Enum> UnderlyingValue(Enum value) {
+ return static_cast<absl::underlying_type_t<Enum>>(value);
+}
+
+// A tag type used in place of a matcher when checking that an assertion result
+// does not actually contain any errors.
+struct NoError {};
+
+// -----------------------------------------------------------------------------
+// ConformanceErrors
+// -----------------------------------------------------------------------------
+class ConformanceErrors {
+ public:
+ // Setup the error reporting mechanism by seeding it with the name of the type
+ // that is being tested.
+ explicit ConformanceErrors(std::string type_name)
+ : assertion_result_(false), type_name_(std::move(type_name)) {
+ assertion_result_ << "\n\n"
+ "Assuming the following type alias:\n"
+ "\n"
+ " using _T = "
+ << type_name_ << ";\n\n";
+ outputDivider();
+ }
+
+ // Adds the test name to the list of successfully run tests iff it was not
+ // previously reported as failing. This behavior is useful for tests that
+ // have multiple parts, where failures and successes are reported individually
+ // with the same test name.
+ void addTestSuccess(absl::string_view test_name) {
+ auto normalized_test_name = absl::AsciiStrToLower(test_name);
+
+ // If the test is already reported as failing, do not add it to the list of
+ // successes.
+ if (test_failures_.find(normalized_test_name) == test_failures_.end()) {
+ test_successes_.insert(std::move(normalized_test_name));
+ }
+ }
+
+ // Streams a single error description into the internal buffer (a visual
+ // divider is automatically inserted after the error so that multiple errors
+ // are visibly distinct).
+ //
+ // This function increases the error count by 1.
+ //
+ // TODO(calabrese) Determine desired behavior when if this function throws.
+ template <class... P>
+ void addTestFailure(absl::string_view test_name, const P&... args) {
+ // Output a message related to the test failure.
+ assertion_result_ << "\n\n"
+ "Failed test: "
+ << test_name << "\n\n";
+ addTestFailureImpl(args...);
+ assertion_result_ << "\n\n";
+ outputDivider();
+
+ auto normalized_test_name = absl::AsciiStrToLower(test_name);
+
+ // If previous parts of this test succeeded, remove it from that set.
+ test_successes_.erase(normalized_test_name);
+
+ // Add the test name to the list of failed tests.
+ test_failures_.insert(std::move(normalized_test_name));
+
+ has_error_ = true;
+ }
+
+ // Convert this object into a testing::AssertionResult instance such that it
+ // can be used with gtest.
+ ::testing::AssertionResult assertionResult() const {
+ return has_error_ ? assertion_result_ : ::testing::AssertionSuccess();
+ }
+
+ // Convert this object into a testing::AssertionResult instance such that it
+ // can be used with gtest. This overload expects errors, using the specified
+ // matcher.
+ ::testing::AssertionResult expectFailedTests(
+ const std::set<std::string>& test_names) const {
+ // Since we are expecting nonconformance, output an error message when the
+ // type actually conformed to the specified profile.
+ if (!has_error_) {
+ return ::testing::AssertionFailure()
+ << "Unexpected conformance of type:\n"
+ " "
+ << type_name_ << "\n\n";
+ }
+
+ // Get a list of all expected failures that did not actually fail
+ // (or that were not run).
+ std::vector<std::string> nonfailing_tests;
+ absl::c_set_difference(test_names, test_failures_,
+ std::back_inserter(nonfailing_tests));
+
+ // Get a list of all "expected failures" that were never actually run.
+ std::vector<std::string> unrun_tests;
+ absl::c_set_difference(nonfailing_tests, test_successes_,
+ std::back_inserter(unrun_tests));
+
+ // Report when the user specified tests that were not run.
+ if (!unrun_tests.empty()) {
+ const bool tests_were_run =
+ !(test_failures_.empty() && test_successes_.empty());
+
+ // Prepare an assertion result used in the case that tests pass that were
+ // expected to fail.
+ ::testing::AssertionResult result = ::testing::AssertionFailure();
+ result << "When testing type:\n " << type_name_
+ << "\n\nThe following tests were expected to fail but were not "
+ "run";
+
+ if (tests_were_run) result << " (was the test name spelled correctly?)";
+
+ result << ":\n\n";
+
+ // List all of the tests that unexpectedly passed.
+ for (const auto& test_name : unrun_tests) {
+ result << " " << test_name << "\n";
+ }
+
+ if (!tests_were_run) result << "\nNo tests were run.";
+
+ if (!test_failures_.empty()) {
+ // List test failures
+ result << "\nThe tests that were run and failed are:\n\n";
+ for (const auto& test_name : test_failures_) {
+ result << " " << test_name << "\n";
+ }
+ }
+
+ if (!test_successes_.empty()) {
+ // List test successes
+ result << "\nThe tests that were run and succeeded are:\n\n";
+ for (const auto& test_name : test_successes_) {
+ result << " " << test_name << "\n";
+ }
+ }
+
+ return result;
+ }
+
+ // If some tests passed when they were expected to fail, alert the caller.
+ if (nonfailing_tests.empty()) return ::testing::AssertionSuccess();
+
+ // Prepare an assertion result used in the case that tests pass that were
+ // expected to fail.
+ ::testing::AssertionResult unexpected_successes =
+ ::testing::AssertionFailure();
+ unexpected_successes << "When testing type:\n " << type_name_
+ << "\n\nThe following tests passed when they were "
+ "expected to fail:\n\n";
+
+ // List all of the tests that unexpectedly passed.
+ for (const auto& test_name : nonfailing_tests) {
+ unexpected_successes << " " << test_name << "\n";
+ }
+
+ return unexpected_successes;
+ }
+
+ private:
+ void outputDivider() {
+ assertion_result_ << "========================================";
+ }
+
+ void addTestFailureImpl() {}
+
+ template <class H, class... T>
+ void addTestFailureImpl(const H& head, const T&... tail) {
+ assertion_result_ << head;
+ addTestFailureImpl(tail...);
+ }
+
+ ::testing::AssertionResult assertion_result_;
+ std::set<std::string> test_failures_;
+ std::set<std::string> test_successes_;
+ std::string type_name_;
+ bool has_error_ = false;
+};
+
template <class T, class /*Enabler*/ = void>
struct PropertiesOfImpl {};
@@ -70,31 +260,100 @@
// standard trait names, which is useful since it allows us to match up each
// enum name with a corresponding trait name in macro definitions.
-enum class function_kind { maybe, yes, nothrow, trivial };
+// An enum that describes the various expectations on an operations existence.
+enum class function_support { maybe, yes, nothrow, trivial };
-#define ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(name) \
- enum class name { maybe, yes, nothrow, trivial }
+constexpr const char* PessimisticPropertyDescription(function_support v) {
+ return v == function_support::maybe
+ ? "no"
+ : v == function_support::yes
+ ? "yes, potentially throwing"
+ : v == function_support::nothrow ? "yes, nothrow"
+ : "yes, trivial";
+}
-ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(default_constructible);
-ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(move_constructible);
-ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(copy_constructible);
-ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(move_assignable);
-ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(copy_assignable);
-ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(destructible);
+// Return a string that describes the kind of property support that was
+// expected.
+inline std::string ExpectedFunctionKindList(function_support min,
+ function_support max) {
+ if (min == max) {
+ std::string result =
+ absl::StrCat("Expected:\n ",
+ PessimisticPropertyDescription(
+ static_cast<function_support>(UnderlyingValue(min))),
+ "\n");
+ return result;
+ }
+
+ std::string result = "Expected one of:\n";
+ for (auto curr_support = UnderlyingValue(min);
+ curr_support <= UnderlyingValue(max); ++curr_support) {
+ absl::StrAppend(&result, " ",
+ PessimisticPropertyDescription(
+ static_cast<function_support>(curr_support)),
+ "\n");
+ }
+
+ return result;
+}
+
+template <class Enum>
+void ExpectModelOfImpl(ConformanceErrors* errors, Enum min_support,
+ Enum max_support, Enum kind) {
+ const auto kind_value = UnderlyingValue(kind);
+ const auto min_support_value = UnderlyingValue(min_support);
+ const auto max_support_value = UnderlyingValue(max_support);
+
+ if (!(kind_value >= min_support_value && kind_value <= max_support_value)) {
+ errors->addTestFailure(
+ PropertyName(kind), "**Failed property expectation**\n\n",
+ ExpectedFunctionKindList(
+ static_cast<function_support>(min_support_value),
+ static_cast<function_support>(max_support_value)),
+ '\n', "Actual:\n ",
+ PessimisticPropertyDescription(
+ static_cast<function_support>(kind_value)));
+ } else {
+ errors->addTestSuccess(PropertyName(kind));
+ }
+}
+
+#define ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM(description, name) \
+ enum class name { maybe, yes, nothrow, trivial }; \
+ \
+ constexpr const char* PropertyName(name v) { return description; } \
+ static_assert(true, "") // Force a semicolon when using this macro.
+
+ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM("support for default construction",
+ default_constructible);
+ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM("support for move construction",
+ move_constructible);
+ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM("support for copy construction",
+ copy_constructible);
+ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM("support for move assignment",
+ move_assignable);
+ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM("support for copy assignment",
+ copy_assignable);
+ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM("support for destruction",
+ destructible);
#undef ABSL_INTERNAL_SPECIAL_MEMBER_FUNCTION_ENUM
-#define ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(name) \
- enum class name { maybe, yes, nothrow }
+#define ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(description, name) \
+ enum class name { maybe, yes, nothrow }; \
+ \
+ constexpr const char* PropertyName(name v) { return description; } \
+ static_assert(true, "") // Force a semicolon when using this macro.
-ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(equality_comparable);
-ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(inequality_comparable);
-ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(less_than_comparable);
-ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(less_equal_comparable);
-ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(greater_equal_comparable);
-ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(greater_than_comparable);
+ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM("support for ==", equality_comparable);
+ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM("support for !=", inequality_comparable);
+ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM("support for <", less_than_comparable);
+ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM("support for <=", less_equal_comparable);
+ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM("support for >=",
+ greater_equal_comparable);
+ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM("support for >", greater_than_comparable);
-ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM(swappable);
+ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM("support for swap", swappable);
#undef ABSL_INTERNAL_INTRINSIC_FUNCTION_ENUM
@@ -104,6 +363,184 @@
return "support for std::hash";
}
+template <class T>
+using AlwaysFalse = std::false_type;
+
+#define ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER(name, property) \
+ template <class T> \
+ constexpr property property##_support_of() { \
+ return std::is_##property<T>::value \
+ ? std::is_nothrow_##property<T>::value \
+ ? absl::is_trivially_##property<T>::value \
+ ? property::trivial \
+ : property::nothrow \
+ : property::yes \
+ : property::maybe; \
+ } \
+ \
+ template <class T, class MinProf, class MaxProf> \
+ void ExpectModelOf##name(ConformanceErrors* errors) { \
+ (ExpectModelOfImpl)(errors, PropertiesOfT<MinProf>::property##_support, \
+ PropertiesOfT<MaxProf>::property##_support, \
+ property##_support_of<T>()); \
+ }
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER(DefaultConstructible,
+ default_constructible);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER(MoveConstructible,
+ move_constructible);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER(CopyConstructible,
+ copy_constructible);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER(MoveAssignable,
+ move_assignable);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER(CopyAssignable,
+ copy_assignable);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER(Destructible, destructible);
+
+#undef ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_SPECIAL_MEMBER
+
+void BoolFunction(bool) noexcept;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A metafunction for checking if an operation exists through SFINAE.
+//
+// `T` is the type to test and Op is an alias containing the expression to test.
+template <class T, template <class...> class Op, class = void>
+struct IsOpableImpl : std::false_type {};
+
+template <class T, template <class...> class Op>
+struct IsOpableImpl<T, Op, absl::void_t<Op<T>>> : std::true_type {};
+
+template <template <class...> class Op>
+struct IsOpable {
+ template <class T>
+ using apply = typename IsOpableImpl<T, Op>::type;
+};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A metafunction for checking if an operation exists and is also noexcept
+// through SFINAE and the noexcept operator.
+///
+// `T` is the type to test and Op is an alias containing the expression to test.
+template <class T, template <class...> class Op, class = void>
+struct IsNothrowOpableImpl : std::false_type {};
+
+template <class T, template <class...> class Op>
+struct IsNothrowOpableImpl<T, Op, absl::enable_if_t<Op<T>::value>>
+ : std::true_type {};
+
+template <template <class...> class Op>
+struct IsNothrowOpable {
+ template <class T>
+ using apply = typename IsNothrowOpableImpl<T, Op>::type;
+};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A macro that produces the necessary function for reporting what kind of
+// support a specific comparison operation has and a function for reporting an
+// error if a given type's support for that operation does not meet the expected
+// requirements.
+#define ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON(name, property, op) \
+ template <class T, \
+ class Result = std::integral_constant< \
+ bool, noexcept((BoolFunction)(std::declval<const T&>() op \
+ std::declval<const T&>()))>> \
+ using name = Result; \
+ \
+ template <class T> \
+ constexpr property property##_support_of() { \
+ return IsOpable<name>::apply<T>::value \
+ ? IsNothrowOpable<name>::apply<T>::value ? property::nothrow \
+ : property::yes \
+ : property::maybe; \
+ } \
+ \
+ template <class T, class MinProf, class MaxProf> \
+ void ExpectModelOf##name(ConformanceErrors* errors) { \
+ (ExpectModelOfImpl)(errors, PropertiesOfT<MinProf>::property##_support, \
+ PropertiesOfT<MaxProf>::property##_support, \
+ property##_support_of<T>()); \
+ }
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Generate the necessary support-checking and error reporting functions for
+// each of the comparison operators.
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON(EqualityComparable,
+ equality_comparable, ==);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON(InequalityComparable,
+ inequality_comparable, !=);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON(LessThanComparable,
+ less_than_comparable, <);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON(LessEqualComparable,
+ less_equal_comparable, <=);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON(GreaterEqualComparable,
+ greater_equal_comparable, >=);
+
+ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON(GreaterThanComparable,
+ greater_than_comparable, >);
+
+#undef ABSL_INTERNAL_PESSIMISTIC_MODEL_OF_COMPARISON
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// The necessary support-checking and error-reporting functions for swap.
+template <class T>
+constexpr swappable swappable_support_of() {
+ return type_traits_internal::IsSwappable<T>::value
+ ? type_traits_internal::IsNothrowSwappable<T>::value
+ ? swappable::nothrow
+ : swappable::yes
+ : swappable::maybe;
+}
+
+template <class T, class MinProf, class MaxProf>
+void ExpectModelOfSwappable(ConformanceErrors* errors) {
+ (ExpectModelOfImpl)(errors, PropertiesOfT<MinProf>::swappable_support,
+ PropertiesOfT<MaxProf>::swappable_support,
+ swappable_support_of<T>());
+}
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// The necessary support-checking and error-reporting functions for std::hash.
+template <class T>
+constexpr hashable hashable_support_of() {
+ return type_traits_internal::IsHashable<T>::value ? hashable::yes
+ : hashable::maybe;
+}
+
+template <class T, class MinProf, class MaxProf>
+void ExpectModelOfHashable(ConformanceErrors* errors) {
+ (ExpectModelOfImpl)(errors, PropertiesOfT<MinProf>::hashable_support,
+ PropertiesOfT<MaxProf>::hashable_support,
+ hashable_support_of<T>());
+}
+//
+////////////////////////////////////////////////////////////////////////////////
+
template <
default_constructible DefaultConstructibleValue =
default_constructible::maybe,
@@ -216,6 +653,45 @@
HashableValue != hashable::maybe;
};
+////////////////////////////////////////////////////////////////////////////////
+//
+// Compliant SFINAE-friendliness is not always present on the standard library
+// implementations that we support. This helper-struct (and associated enum) is
+// used as a means to conditionally check the hashability support of a type.
+enum class CheckHashability { no, yes };
+
+template <class T, CheckHashability ShouldCheckHashability>
+struct conservative_hashable_support_of;
+
+template <class T>
+struct conservative_hashable_support_of<T, CheckHashability::no> {
+ static constexpr hashable Invoke() { return hashable::maybe; }
+};
+
+template <class T>
+struct conservative_hashable_support_of<T, CheckHashability::yes> {
+ static constexpr hashable Invoke() { return hashable_support_of<T>(); }
+};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// The ConformanceProfile that is expected based on introspection into the type
+// by way of trait checks.
+template <class T, CheckHashability ShouldCheckHashability>
+struct SyntacticConformanceProfileOf {
+ using properties = ConformanceProfile<
+ default_constructible_support_of<T>(), move_constructible_support_of<T>(),
+ copy_constructible_support_of<T>(), move_assignable_support_of<T>(),
+ copy_assignable_support_of<T>(), destructible_support_of<T>(),
+ equality_comparable_support_of<T>(),
+ inequality_comparable_support_of<T>(),
+ less_than_comparable_support_of<T>(),
+ less_equal_comparable_support_of<T>(),
+ greater_equal_comparable_support_of<T>(),
+ greater_than_comparable_support_of<T>(), swappable_support_of<T>(),
+ conservative_hashable_support_of<T, ShouldCheckHashability>::Invoke()>;
+};
+
#define ABSL_INTERNAL_CONFORMANCE_TESTING_DATA_MEMBER_DEF_IMPL(type, name) \
template <default_constructible DefaultConstructibleValue, \
move_constructible MoveConstructibleValue, \
@@ -261,12 +737,80 @@
#undef ABSL_INTERNAL_CONFORMANCE_TESTING_DATA_MEMBER_DEF
#undef ABSL_INTERNAL_CONFORMANCE_TESTING_DATA_MEMBER_DEF_IMPL
-// Converts an enum to its underlying integral value.
-template <class Enum>
-constexpr absl::underlying_type_t<Enum> UnderlyingValue(Enum value) {
- return static_cast<absl::underlying_type_t<Enum>>(value);
+// Retrieve the enum with the minimum underlying value.
+// Note: std::min is not constexpr in C++11, which is why this is necessary.
+template <class H>
+constexpr H MinEnum(H head) {
+ return head;
}
+template <class H, class N, class... T>
+constexpr H MinEnum(H head, N next, T... tail) {
+ return (UnderlyingValue)(head) < (UnderlyingValue)(next)
+ ? (MinEnum)(head, tail...)
+ : (MinEnum)(next, tail...);
+}
+
+template <class... Profs>
+struct MinimalProfiles {
+ static constexpr default_constructible
+ default_constructible_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::default_constructible_support...);
+
+ static constexpr move_constructible move_constructible_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::move_constructible_support...);
+
+ static constexpr copy_constructible copy_constructible_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::copy_constructible_support...);
+
+ static constexpr move_assignable move_assignable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::move_assignable_support...);
+
+ static constexpr copy_assignable copy_assignable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::copy_assignable_support...);
+
+ static constexpr destructible destructible_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::destructible_support...);
+
+ static constexpr equality_comparable equality_comparable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::equality_comparable_support...);
+
+ static constexpr inequality_comparable
+ inequality_comparable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::inequality_comparable_support...);
+
+ static constexpr less_than_comparable
+ less_than_comparable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::less_than_comparable_support...);
+
+ static constexpr less_equal_comparable
+ less_equal_comparable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::less_equal_comparable_support...);
+
+ static constexpr greater_equal_comparable
+ greater_equal_comparable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::greater_equal_comparable_support...);
+
+ static constexpr greater_than_comparable
+ greater_than_comparable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::greater_than_comparable_support...);
+
+ static constexpr swappable swappable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::swappable_support...);
+
+ static constexpr hashable hashable_support = // NOLINT
+ (MinEnum)(PropertiesOfT<Profs>::hashable_support...);
+
+ using properties = ConformanceProfile<
+ default_constructible_support, move_constructible_support,
+ copy_constructible_support, move_assignable_support,
+ copy_assignable_support, destructible_support,
+ equality_comparable_support, inequality_comparable_support,
+ less_than_comparable_support, less_equal_comparable_support,
+ greater_equal_comparable_support, greater_than_comparable_support,
+ swappable_support, hashable_support>;
+};
+
// Retrieve the enum with the greatest underlying value.
// Note: std::max is not constexpr in C++11, which is why this is necessary.
template <class H>
@@ -369,6 +913,17 @@
template <class T>
struct IsProfile : IsProfileImpl<T>::type {};
+// A tag that describes which set of properties we will check when the user
+// requires a strict match in conformance (as opposed to a loose match which
+// allows more-refined support of any given operation).
+//
+// Currently only the RegularityDomain exists and it includes all operations
+// that the conformance testing suite knows about. The intent is that if the
+// suite is expanded to support extension, such as for checking conformance of
+// concepts like Iterators or Containers, additional corresponding domains can
+// be created.
+struct RegularityDomain {};
+
} // namespace types_internal
ABSL_NAMESPACE_END
} // namespace absl
diff --git a/absl/types/internal/conformance_testing.h b/absl/types/internal/conformance_testing.h
new file mode 100644
index 0000000..487b0f7
--- /dev/null
+++ b/absl/types/internal/conformance_testing.h
@@ -0,0 +1,1386 @@
+// Copyright 2019 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// -----------------------------------------------------------------------------
+// conformance_testing.h
+// -----------------------------------------------------------------------------
+//
+
+#ifndef ABSL_TYPES_INTERNAL_CONFORMANCE_TESTING_H_
+#define ABSL_TYPES_INTERNAL_CONFORMANCE_TESTING_H_
+
+////////////////////////////////////////////////////////////////////////////////
+// //
+// Many templates in this file take a `T` and a `Prof` type as explicit //
+// template arguments. These are a type to be checked and a //
+// "Regularity Profile" that describes what operations that type `T` is //
+// expected to support. See "regularity_profiles.h" for more details //
+// regarding Regularity Profiles. //
+// //
+////////////////////////////////////////////////////////////////////////////////
+
+#include <cstddef>
+#include <set>
+#include <tuple>
+#include <type_traits>
+#include <utility>
+
+#include "gtest/gtest.h"
+#include "absl/meta/type_traits.h"
+#include "absl/strings/ascii.h"
+#include "absl/strings/str_cat.h"
+#include "absl/strings/string_view.h"
+#include "absl/types/internal/conformance_aliases.h"
+#include "absl/types/internal/conformance_archetype.h"
+#include "absl/types/internal/conformance_profile.h"
+#include "absl/types/internal/conformance_testing_helpers.h"
+#include "absl/types/internal/parentheses.h"
+#include "absl/types/internal/transform_args.h"
+#include "absl/utility/utility.h"
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+namespace types_internal {
+
+// Returns true if the compiler incorrectly greedily instantiates constexpr
+// templates in any unevaluated context.
+constexpr bool constexpr_instantiation_when_unevaluated() {
+#if defined(__apple_build_version__) // TODO(calabrese) Make more specific
+ return true;
+#elif defined(__clang__)
+ return __clang_major__ < 4;
+#elif defined(__GNUC__)
+ // TODO(calabrese) Figure out why gcc 7 fails (seems like a different bug)
+ return __GNUC__ < 5 || (__GNUC__ == 5 && __GNUC_MINOR__ < 2) || __GNUC__ >= 7;
+#else
+ return false;
+#endif
+}
+
+// Returns true if the standard library being used incorrectly produces an error
+// when instantiating the definition of a poisoned std::hash specialization.
+constexpr bool poisoned_hash_fails_instantiation() {
+#if defined(_MSC_VER) && !defined(_LIBCPP_VERSION)
+ return _MSC_VER < 1914;
+#else
+ return false;
+#endif
+}
+
+template <class Fun>
+struct GeneratorType {
+ decltype(std::declval<const Fun&>()()) operator()() const
+ noexcept(noexcept(std::declval<const Fun&>()())) {
+ return fun();
+ }
+
+ Fun fun;
+ const char* description;
+};
+
+// A "make" function for the GeneratorType template that deduces the function
+// object type.
+template <class Fun,
+ absl::enable_if_t<IsNullaryCallable<Fun>::value>** = nullptr>
+GeneratorType<Fun> Generator(Fun fun, const char* description) {
+ return GeneratorType<Fun>{absl::move(fun), description};
+}
+
+// A type that contains a set of nullary function objects that each return an
+// instance of the same type and value (though possibly different
+// representations, such as +0 and -0 or two vectors with the same elements but
+// with different capacities).
+template <class... Funs>
+struct EquivalenceClassType {
+ std::tuple<GeneratorType<Funs>...> generators;
+};
+
+// A "make" function for the EquivalenceClassType template that deduces the
+// function object types and is constrained such that a user can only pass in
+// function objects that all have the same return type.
+template <class... Funs, absl::enable_if_t<AreGeneratorsWithTheSameReturnType<
+ Funs...>::value>** = nullptr>
+EquivalenceClassType<Funs...> EquivalenceClass(GeneratorType<Funs>... funs) {
+ return {std::make_tuple(absl::move(funs)...)};
+}
+
+// A type that contains an ordered series of EquivalenceClassTypes, from
+// smallest value to largest value.
+template <class... EqClasses>
+struct OrderedEquivalenceClasses {
+ std::tuple<EqClasses...> eq_classes;
+};
+
+// An object containing the parts of a given (name, initialization expression),
+// and is capable of generating a string that describes the given.
+struct GivenDeclaration {
+ std::string outputDeclaration(std::size_t width) const {
+ const std::size_t indent_size = 2;
+ std::string result = absl::StrCat(" ", name);
+
+ if (!expression.empty()) {
+ // Indent
+ result.resize(indent_size + width, ' ');
+ absl::StrAppend(&result, " = ", expression, ";\n");
+ } else {
+ absl::StrAppend(&result, ";\n");
+ }
+
+ return result;
+ }
+
+ std::string name;
+ std::string expression;
+};
+
+// Produce a string that contains all of the givens of an error report.
+template <class... Decls>
+std::string PrepareGivenContext(const Decls&... decls) {
+ const std::size_t width = (std::max)({decls.name.size()...});
+ return absl::StrCat("Given:\n", decls.outputDeclaration(width)..., "\n");
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Function objects that perform a check for each comparison operator //
+////////////////////////////////////////////////////////////////////////////////
+
+#define ABSL_INTERNAL_EXPECT_OP(name, op) \
+ struct Expect##name { \
+ template <class T> \
+ void operator()(absl::string_view test_name, absl::string_view context, \
+ const T& lhs, const T& rhs, absl::string_view lhs_name, \
+ absl::string_view rhs_name) const { \
+ if (!static_cast<bool>(lhs op rhs)) { \
+ errors->addTestFailure( \
+ test_name, absl::StrCat(context, \
+ "**Unexpected comparison result**\n" \
+ "\n" \
+ "Expression:\n" \
+ " ", \
+ lhs_name, " " #op " ", rhs_name, \
+ "\n" \
+ "\n" \
+ "Expected: true\n" \
+ " Actual: false")); \
+ } else { \
+ errors->addTestSuccess(test_name); \
+ } \
+ } \
+ \
+ ConformanceErrors* errors; \
+ }; \
+ \
+ struct ExpectNot##name { \
+ template <class T> \
+ void operator()(absl::string_view test_name, absl::string_view context, \
+ const T& lhs, const T& rhs, absl::string_view lhs_name, \
+ absl::string_view rhs_name) const { \
+ if (lhs op rhs) { \
+ errors->addTestFailure( \
+ test_name, absl::StrCat(context, \
+ "**Unexpected comparison result**\n" \
+ "\n" \
+ "Expression:\n" \
+ " ", \
+ lhs_name, " " #op " ", rhs_name, \
+ "\n" \
+ "\n" \
+ "Expected: false\n" \
+ " Actual: true")); \
+ } else { \
+ errors->addTestSuccess(test_name); \
+ } \
+ } \
+ \
+ ConformanceErrors* errors; \
+ }
+
+ABSL_INTERNAL_EXPECT_OP(Eq, ==);
+ABSL_INTERNAL_EXPECT_OP(Ne, !=);
+ABSL_INTERNAL_EXPECT_OP(Lt, <);
+ABSL_INTERNAL_EXPECT_OP(Le, <=);
+ABSL_INTERNAL_EXPECT_OP(Ge, >=);
+ABSL_INTERNAL_EXPECT_OP(Gt, >);
+
+#undef ABSL_INTERNAL_EXPECT_OP
+
+// A function object that verifies that two objects hash to the same value by
+// way of the std::hash specialization.
+struct ExpectSameHash {
+ template <class T>
+ void operator()(absl::string_view test_name, absl::string_view context,
+ const T& lhs, const T& rhs, absl::string_view lhs_name,
+ absl::string_view rhs_name) const {
+ if (std::hash<T>()(lhs) != std::hash<T>()(rhs)) {
+ errors->addTestFailure(
+ test_name, absl::StrCat(context,
+ "**Unexpected hash result**\n"
+ "\n"
+ "Expression:\n"
+ " std::hash<T>()(",
+ lhs_name, ") == std::hash<T>()(", rhs_name,
+ ")\n"
+ "\n"
+ "Expected: true\n"
+ " Actual: false"));
+ } else {
+ errors->addTestSuccess(test_name);
+ }
+ }
+
+ ConformanceErrors* errors;
+};
+
+// A function template that takes two objects and verifies that each comparison
+// operator behaves in a way that is consistent with equality. It has "OneWay"
+// in the name because the first argument will always be the left-hand operand
+// of the corresponding comparison operator and the second argument will
+// always be the right-hand operand. It will never switch that order.
+// At a higher level in the test suite, the one-way form is called once for each
+// of the two possible orders whenever lhs and rhs are not the same initializer.
+template <class T, class Prof>
+void ExpectOneWayEquality(ConformanceErrors* errors,
+ absl::string_view test_name,
+ absl::string_view context, const T& lhs, const T& rhs,
+ absl::string_view lhs_name,
+ absl::string_view rhs_name) {
+ If<PropertiesOfT<Prof>::is_equality_comparable>::Invoke(
+ ExpectEq{errors}, test_name, context, lhs, rhs, lhs_name, rhs_name);
+
+ If<PropertiesOfT<Prof>::is_inequality_comparable>::Invoke(
+ ExpectNotNe{errors}, test_name, context, lhs, rhs, lhs_name, rhs_name);
+
+ If<PropertiesOfT<Prof>::is_less_than_comparable>::Invoke(
+ ExpectNotLt{errors}, test_name, context, lhs, rhs, lhs_name, rhs_name);
+
+ If<PropertiesOfT<Prof>::is_less_equal_comparable>::Invoke(
+ ExpectLe{errors}, test_name, context, lhs, rhs, lhs_name, rhs_name);
+
+ If<PropertiesOfT<Prof>::is_greater_equal_comparable>::Invoke(
+ ExpectGe{errors}, test_name, context, lhs, rhs, lhs_name, rhs_name);
+
+ If<PropertiesOfT<Prof>::is_greater_than_comparable>::Invoke(
+ ExpectNotGt{errors}, test_name, context, lhs, rhs, lhs_name, rhs_name);
+
+ If<PropertiesOfT<Prof>::is_hashable>::Invoke(
+ ExpectSameHash{errors}, test_name, context, lhs, rhs, lhs_name, rhs_name);
+}
+
+// A function template that takes two objects and verifies that each comparison
+// operator behaves in a way that is consistent with equality. This function
+// differs from ExpectOneWayEquality in that this will do checks with argument
+// order reversed in addition to in-order.
+template <class T, class Prof>
+void ExpectEquality(ConformanceErrors* errors, absl::string_view test_name,
+ absl::string_view context, const T& lhs, const T& rhs,
+ absl::string_view lhs_name, absl::string_view rhs_name) {
+ (ExpectOneWayEquality<T, Prof>)(errors, test_name, context, lhs, rhs,
+ lhs_name, rhs_name);
+ (ExpectOneWayEquality<T, Prof>)(errors, test_name, context, rhs, lhs,
+ rhs_name, lhs_name);
+}
+
+// Given a generator, makes sure that a generated value and a moved-from
+// generated value are equal.
+template <class T, class Prof>
+struct ExpectMoveConstructOneGenerator {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ const T object = generator();
+ const T moved_object = absl::move(generator()); // Force no elision.
+
+ (ExpectEquality<T, Prof>)(errors, "Move construction",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T object",
+ generator.description},
+ GivenDeclaration{"const _T moved_object",
+ std::string("std::move(") +
+ generator.description +
+ ")"}),
+ object, moved_object, "object", "moved_object");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Given a generator, makes sure that a generated value and a copied-from
+// generated value are equal.
+template <class T, class Prof>
+struct ExpectCopyConstructOneGenerator {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ const T object = generator();
+ const T copied_object = static_cast<const T&>(generator());
+
+ (ExpectEquality<T, Prof>)(errors, "Copy construction",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T object",
+ generator.description},
+ GivenDeclaration{
+ "const _T copied_object",
+ std::string("static_cast<const _T&>(") +
+ generator.description + ")"}),
+ object, copied_object, "object", "copied_object");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Default-construct and do nothing before destruction.
+//
+// This is useful in exercising the codepath of default construction followed by
+// destruction, but does not explicitly test anything. An example of where this
+// might fail is a default destructor that default-initializes a scalar and a
+// destructor reads the value of that member. Sanitizers can catch this as long
+// as our test attempts to execute such a case.
+template <class T>
+struct ExpectDefaultConstructWithDestruct {
+ void operator()() const {
+ // Scoped so that destructor gets called before reporting success.
+ {
+ T object;
+ static_cast<void>(object);
+ }
+
+ errors->addTestSuccess("Default construction");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Check move-assign into a default-constructed object.
+template <class T, class Prof>
+struct ExpectDefaultConstructWithMoveAssign {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ const T source_of_truth = generator();
+ T object;
+ object = generator();
+
+ (ExpectEquality<T, Prof>)(errors, "Move assignment",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T object",
+ generator.description},
+ GivenDeclaration{"_T object", ""},
+ GivenDeclaration{"object",
+ generator.description}),
+ object, source_of_truth, "std::as_const(object)",
+ "source_of_truth");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Check copy-assign into a default-constructed object.
+template <class T, class Prof>
+struct ExpectDefaultConstructWithCopyAssign {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ const T source_of_truth = generator();
+ T object;
+ object = static_cast<const T&>(generator());
+
+ (ExpectEquality<T, Prof>)(errors, "Copy assignment",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T source_of_truth",
+ generator.description},
+ GivenDeclaration{"_T object", ""},
+ GivenDeclaration{
+ "object",
+ std::string("static_cast<const _T&>(") +
+ generator.description + ")"}),
+ object, source_of_truth, "std::as_const(object)",
+ "source_of_truth");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Perform a self move-assign.
+template <class T, class Prof>
+struct ExpectSelfMoveAssign {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ T object = generator();
+ object = absl::move(object);
+
+ // NOTE: Self move-assign results in a valid-but-unspecified state.
+
+ (ExpectEquality<T, Prof>)(errors, "Move assignment",
+ PrepareGivenContext(
+ GivenDeclaration{"_T object",
+ generator.description},
+ GivenDeclaration{"object",
+ "std::move(object)"}),
+ object, object, "object", "object");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Perform a self copy-assign.
+template <class T, class Prof>
+struct ExpectSelfCopyAssign {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ const T source_of_truth = generator();
+ T object = generator();
+ const T& const_object = object;
+ object = const_object;
+
+ (ExpectEquality<T, Prof>)(errors, "Copy assignment",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T source_of_truth",
+ generator.description},
+ GivenDeclaration{"_T object",
+ generator.description},
+ GivenDeclaration{"object",
+ "std::as_const(object)"}),
+ const_object, source_of_truth,
+ "std::as_const(object)", "source_of_truth");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Perform a self-swap.
+template <class T, class Prof>
+struct ExpectSelfSwap {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ const T source_of_truth = generator();
+ T object = generator();
+
+ type_traits_internal::Swap(object, object);
+
+ std::string preliminary_info = absl::StrCat(
+ PrepareGivenContext(
+ GivenDeclaration{"const _T source_of_truth", generator.description},
+ GivenDeclaration{"_T object", generator.description}),
+ "After performing a self-swap:\n"
+ " using std::swap;\n"
+ " swap(object, object);\n"
+ "\n");
+
+ (ExpectEquality<T, Prof>)(errors, "Swap", std::move(preliminary_info),
+ object, source_of_truth, "std::as_const(object)",
+ "source_of_truth");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Perform each of the single-generator checks when necessary operations are
+// supported.
+template <class T, class Prof>
+struct ExpectSelfComparison {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ const T object = generator();
+ (ExpectOneWayEquality<T, Prof>)(errors, "Comparison",
+ PrepareGivenContext(GivenDeclaration{
+ "const _T object",
+ generator.description}),
+ object, object, "object", "object");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Perform each of the single-generator checks when necessary operations are
+// supported.
+template <class T, class Prof>
+struct ExpectConsistency {
+ template <class Fun>
+ void operator()(const Fun& generator) const {
+ If<PropertiesOfT<Prof>::is_move_constructible>::Invoke(
+ ExpectMoveConstructOneGenerator<T, Prof>{errors}, generator);
+
+ If<PropertiesOfT<Prof>::is_copy_constructible>::Invoke(
+ ExpectCopyConstructOneGenerator<T, Prof>{errors}, generator);
+
+ If<PropertiesOfT<Prof>::is_default_constructible &&
+ PropertiesOfT<Prof>::is_move_assignable>::
+ Invoke(ExpectDefaultConstructWithMoveAssign<T, Prof>{errors},
+ generator);
+
+ If<PropertiesOfT<Prof>::is_default_constructible &&
+ PropertiesOfT<Prof>::is_copy_assignable>::
+ Invoke(ExpectDefaultConstructWithCopyAssign<T, Prof>{errors},
+ generator);
+
+ If<PropertiesOfT<Prof>::is_move_assignable>::Invoke(
+ ExpectSelfMoveAssign<T, Prof>{errors}, generator);
+
+ If<PropertiesOfT<Prof>::is_copy_assignable>::Invoke(
+ ExpectSelfCopyAssign<T, Prof>{errors}, generator);
+
+ If<PropertiesOfT<Prof>::is_swappable>::Invoke(
+ ExpectSelfSwap<T, Prof>{errors}, generator);
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Check move-assign with two different values.
+template <class T, class Prof>
+struct ExpectMoveAssign {
+ template <class Fun0, class Fun1>
+ void operator()(const Fun0& generator0, const Fun1& generator1) const {
+ const T source_of_truth1 = generator1();
+ T object = generator0();
+ object = generator1();
+
+ (ExpectEquality<T, Prof>)(errors, "Move assignment",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T source_of_truth1",
+ generator1.description},
+ GivenDeclaration{"_T object",
+ generator0.description},
+ GivenDeclaration{"object",
+ generator1.description}),
+ object, source_of_truth1, "std::as_const(object)",
+ "source_of_truth1");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Check copy-assign with two different values.
+template <class T, class Prof>
+struct ExpectCopyAssign {
+ template <class Fun0, class Fun1>
+ void operator()(const Fun0& generator0, const Fun1& generator1) const {
+ const T source_of_truth1 = generator1();
+ T object = generator0();
+ object = static_cast<const T&>(generator1());
+
+ (ExpectEquality<T, Prof>)(errors, "Copy assignment",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T source_of_truth1",
+ generator1.description},
+ GivenDeclaration{"_T object",
+ generator0.description},
+ GivenDeclaration{
+ "object",
+ std::string("static_cast<const _T&>(") +
+ generator1.description + ")"}),
+ object, source_of_truth1, "std::as_const(object)",
+ "source_of_truth1");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Check swap with two different values.
+template <class T, class Prof>
+struct ExpectSwap {
+ template <class Fun0, class Fun1>
+ void operator()(const Fun0& generator0, const Fun1& generator1) const {
+ const T source_of_truth0 = generator0();
+ const T source_of_truth1 = generator1();
+ T object0 = generator0();
+ T object1 = generator1();
+
+ type_traits_internal::Swap(object0, object1);
+
+ const std::string context =
+ PrepareGivenContext(
+ GivenDeclaration{"const _T source_of_truth0",
+ generator0.description},
+ GivenDeclaration{"const _T source_of_truth1",
+ generator1.description},
+ GivenDeclaration{"_T object0", generator0.description},
+ GivenDeclaration{"_T object1", generator1.description}) +
+ "After performing a swap:\n"
+ " using std::swap;\n"
+ " swap(object0, object1);\n"
+ "\n";
+
+ (ExpectEquality<T, Prof>)(errors, "Swap", context, object0,
+ source_of_truth1, "std::as_const(object0)",
+ "source_of_truth1");
+ (ExpectEquality<T, Prof>)(errors, "Swap", context, object1,
+ source_of_truth0, "std::as_const(object1)",
+ "source_of_truth0");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Validate that `generator0` and `generator1` produce values that are equal.
+template <class T, class Prof>
+struct ExpectEquivalenceClassComparison {
+ template <class Fun0, class Fun1>
+ void operator()(const Fun0& generator0, const Fun1& generator1) const {
+ const T object0 = generator0();
+ const T object1 = generator1();
+
+ (ExpectEquality<T, Prof>)(errors, "Comparison",
+ PrepareGivenContext(
+ GivenDeclaration{"const _T object0",
+ generator0.description},
+ GivenDeclaration{"const _T object1",
+ generator1.description}),
+ object0, object1, "object0", "object1");
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Validate that all objects in the same equivalence-class have the same value.
+template <class T, class Prof>
+struct ExpectEquivalenceClassConsistency {
+ template <class Fun0, class Fun1>
+ void operator()(const Fun0& generator0, const Fun1& generator1) const {
+ If<PropertiesOfT<Prof>::is_move_assignable>::Invoke(
+ ExpectMoveAssign<T, Prof>{errors}, generator0, generator1);
+
+ If<PropertiesOfT<Prof>::is_copy_assignable>::Invoke(
+ ExpectCopyAssign<T, Prof>{errors}, generator0, generator1);
+
+ If<PropertiesOfT<Prof>::is_swappable>::Invoke(ExpectSwap<T, Prof>{errors},
+ generator0, generator1);
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Given a "lesser" object and a "greater" object, perform every combination of
+// comparison operators supported for the type, expecting consistent results.
+template <class T, class Prof>
+void ExpectOrdered(ConformanceErrors* errors, absl::string_view context,
+ const T& small, const T& big, absl::string_view small_name,
+ absl::string_view big_name) {
+ const absl::string_view test_name = "Comparison";
+
+ If<PropertiesOfT<Prof>::is_equality_comparable>::Invoke(
+ ExpectNotEq{errors}, test_name, context, small, big, small_name,
+ big_name);
+ If<PropertiesOfT<Prof>::is_equality_comparable>::Invoke(
+ ExpectNotEq{errors}, test_name, context, big, small, big_name,
+ small_name);
+
+ If<PropertiesOfT<Prof>::is_inequality_comparable>::Invoke(
+ ExpectNe{errors}, test_name, context, small, big, small_name, big_name);
+ If<PropertiesOfT<Prof>::is_inequality_comparable>::Invoke(
+ ExpectNe{errors}, test_name, context, big, small, big_name, small_name);
+
+ If<PropertiesOfT<Prof>::is_less_than_comparable>::Invoke(
+ ExpectLt{errors}, test_name, context, small, big, small_name, big_name);
+ If<PropertiesOfT<Prof>::is_less_than_comparable>::Invoke(
+ ExpectNotLt{errors}, test_name, context, big, small, big_name,
+ small_name);
+
+ If<PropertiesOfT<Prof>::is_less_equal_comparable>::Invoke(
+ ExpectLe{errors}, test_name, context, small, big, small_name, big_name);
+ If<PropertiesOfT<Prof>::is_less_equal_comparable>::Invoke(
+ ExpectNotLe{errors}, test_name, context, big, small, big_name,
+ small_name);
+
+ If<PropertiesOfT<Prof>::is_greater_equal_comparable>::Invoke(
+ ExpectNotGe{errors}, test_name, context, small, big, small_name,
+ big_name);
+ If<PropertiesOfT<Prof>::is_greater_equal_comparable>::Invoke(
+ ExpectGe{errors}, test_name, context, big, small, big_name, small_name);
+
+ If<PropertiesOfT<Prof>::is_greater_than_comparable>::Invoke(
+ ExpectNotGt{errors}, test_name, context, small, big, small_name,
+ big_name);
+ If<PropertiesOfT<Prof>::is_greater_than_comparable>::Invoke(
+ ExpectGt{errors}, test_name, context, big, small, big_name, small_name);
+}
+
+// For every two elements of an equivalence class, makes sure that those two
+// elements compare equal, including checks with the same argument passed as
+// both operands.
+template <class T, class Prof>
+struct ExpectEquivalenceClassComparisons {
+ template <class... Funs>
+ void operator()(EquivalenceClassType<Funs...> eq_class) const {
+ (ForEachTupleElement)(ExpectSelfComparison<T, Prof>{errors},
+ eq_class.generators);
+
+ (ForEveryTwo)(ExpectEquivalenceClassComparison<T, Prof>{errors},
+ eq_class.generators);
+ }
+
+ ConformanceErrors* errors;
+};
+
+// For every element of an equivalence class, makes sure that the element is
+// self-consistent (in other words, if any of move/copy/swap are defined,
+// perform those operations and make such that results and operands still
+// compare equal to known values whenever it is required for that operation.
+template <class T, class Prof>
+struct ExpectEquivalenceClass {
+ template <class... Funs>
+ void operator()(EquivalenceClassType<Funs...> eq_class) const {
+ (ForEachTupleElement)(ExpectConsistency<T, Prof>{errors},
+ eq_class.generators);
+
+ (ForEveryTwo)(ExpectEquivalenceClassConsistency<T, Prof>{errors},
+ eq_class.generators);
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Validate that the passed-in argument is a generator of a greater value than
+// the one produced by the "small_gen" datamember with respect to all of the
+// comparison operators that Prof requires, with both argument orders to test.
+template <class T, class Prof, class SmallGenerator>
+struct ExpectBiggerGeneratorThanComparisons {
+ template <class BigGenerator>
+ void operator()(BigGenerator big_gen) const {
+ const T small = small_gen();
+ const T big = big_gen();
+
+ (ExpectOrdered<T, Prof>)(errors,
+ PrepareGivenContext(
+ GivenDeclaration{"const _T small",
+ small_gen.description},
+ GivenDeclaration{"const _T big",
+ big_gen.description}),
+ small, big, "small", "big");
+ }
+
+ SmallGenerator small_gen;
+ ConformanceErrors* errors;
+};
+
+// Perform all of the move, copy, and swap checks on the value generated by
+// `small_gen` and the value generated by `big_gen`.
+template <class T, class Prof, class SmallGenerator>
+struct ExpectBiggerGeneratorThan {
+ template <class BigGenerator>
+ void operator()(BigGenerator big_gen) const {
+ If<PropertiesOfT<Prof>::is_move_assignable>::Invoke(
+ ExpectMoveAssign<T, Prof>{errors}, small_gen, big_gen);
+ If<PropertiesOfT<Prof>::is_move_assignable>::Invoke(
+ ExpectMoveAssign<T, Prof>{errors}, big_gen, small_gen);
+
+ If<PropertiesOfT<Prof>::is_copy_assignable>::Invoke(
+ ExpectCopyAssign<T, Prof>{errors}, small_gen, big_gen);
+ If<PropertiesOfT<Prof>::is_copy_assignable>::Invoke(
+ ExpectCopyAssign<T, Prof>{errors}, big_gen, small_gen);
+
+ If<PropertiesOfT<Prof>::is_swappable>::Invoke(ExpectSwap<T, Prof>{errors},
+ small_gen, big_gen);
+ }
+
+ SmallGenerator small_gen;
+ ConformanceErrors* errors;
+};
+
+// Validate that the result of a generator is greater than the results of all
+// generators in an equivalence class with respect to comparisons.
+template <class T, class Prof, class SmallGenerator>
+struct ExpectBiggerGeneratorThanEqClassesComparisons {
+ template <class BigEqClass>
+ void operator()(BigEqClass big_eq_class) const {
+ (ForEachTupleElement)(
+ ExpectBiggerGeneratorThanComparisons<T, Prof, SmallGenerator>{small_gen,
+ errors},
+ big_eq_class.generators);
+ }
+
+ SmallGenerator small_gen;
+ ConformanceErrors* errors;
+};
+
+// Validate that the non-comparison binary operations required by Prof are
+// correct for the result of each generator of big_eq_class and a generator of
+// the logically smaller value returned by small_gen.
+template <class T, class Prof, class SmallGenerator>
+struct ExpectBiggerGeneratorThanEqClasses {
+ template <class BigEqClass>
+ void operator()(BigEqClass big_eq_class) const {
+ (ForEachTupleElement)(
+ ExpectBiggerGeneratorThan<T, Prof, SmallGenerator>{small_gen, errors},
+ big_eq_class.generators);
+ }
+
+ SmallGenerator small_gen;
+ ConformanceErrors* errors;
+};
+
+// Validate that each equivalence class that is passed is logically less than
+// the equivalence classes that comes later on in the argument list.
+template <class T, class Prof>
+struct ExpectOrderedEquivalenceClassesComparisons {
+ template <class... BigEqClasses>
+ struct Impl {
+ // Validate that the value produced by `small_gen` is less than all of the
+ // values generated by those of the logically larger equivalence classes.
+ template <class SmallGenerator>
+ void operator()(SmallGenerator small_gen) const {
+ (ForEachTupleElement)(ExpectBiggerGeneratorThanEqClassesComparisons<
+ T, Prof, SmallGenerator>{small_gen, errors},
+ big_eq_classes);
+ }
+
+ std::tuple<BigEqClasses...> big_eq_classes;
+ ConformanceErrors* errors;
+ };
+
+ // When given no equivalence classes, no validation is necessary.
+ void operator()() const {}
+
+ template <class SmallEqClass, class... BigEqClasses>
+ void operator()(SmallEqClass small_eq_class,
+ BigEqClasses... big_eq_classes) const {
+ // For each generator in the first equivalence class, make sure that it is
+ // less than each of those in the logically greater equivalence classes.
+ (ForEachTupleElement)(
+ Impl<BigEqClasses...>{std::make_tuple(absl::move(big_eq_classes)...),
+ errors},
+ small_eq_class.generators);
+
+ // Recurse so that all equivalence class combinations are checked.
+ (*this)(absl::move(big_eq_classes)...);
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Validate that the non-comparison binary operations required by Prof are
+// correct for the result of each generator of big_eq_classes and a generator of
+// the logically smaller value returned by small_gen.
+template <class T, class Prof>
+struct ExpectOrderedEquivalenceClasses {
+ template <class... BigEqClasses>
+ struct Impl {
+ template <class SmallGenerator>
+ void operator()(SmallGenerator small_gen) const {
+ (ForEachTupleElement)(
+ ExpectBiggerGeneratorThanEqClasses<T, Prof, SmallGenerator>{small_gen,
+ errors},
+ big_eq_classes);
+ }
+
+ std::tuple<BigEqClasses...> big_eq_classes;
+ ConformanceErrors* errors;
+ };
+
+ // Check that small_eq_class is logically consistent and also is logically
+ // less than all values in big_eq_classes.
+ template <class SmallEqClass, class... BigEqClasses>
+ void operator()(SmallEqClass small_eq_class,
+ BigEqClasses... big_eq_classes) const {
+ (ForEachTupleElement)(
+ Impl<BigEqClasses...>{std::make_tuple(absl::move(big_eq_classes)...),
+ errors},
+ small_eq_class.generators);
+
+ (*this)(absl::move(big_eq_classes)...);
+ }
+
+ // Terminating case of operator().
+ void operator()() const {}
+
+ ConformanceErrors* errors;
+};
+
+// Validate that a type meets the syntactic requirements of std::hash if the
+// range of profiles requires it.
+template <class T, class MinProf, class MaxProf>
+struct ExpectHashable {
+ void operator()() const {
+ ExpectModelOfHashable<T, MinProf, MaxProf>(errors);
+ }
+
+ ConformanceErrors* errors;
+};
+
+// Validate that the type `T` meets all of the requirements associated with
+// `MinProf` and without going beyond the syntactic properties of `MaxProf`.
+template <class T, class MinProf, class MaxProf>
+struct ExpectModels {
+ void operator()(ConformanceErrors* errors) const {
+ ExpectModelOfDefaultConstructible<T, MinProf, MaxProf>(errors);
+ ExpectModelOfMoveConstructible<T, MinProf, MaxProf>(errors);
+ ExpectModelOfCopyConstructible<T, MinProf, MaxProf>(errors);
+ ExpectModelOfMoveAssignable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfCopyAssignable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfDestructible<T, MinProf, MaxProf>(errors);
+ ExpectModelOfEqualityComparable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfInequalityComparable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfLessThanComparable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfLessEqualComparable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfGreaterEqualComparable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfGreaterThanComparable<T, MinProf, MaxProf>(errors);
+ ExpectModelOfSwappable<T, MinProf, MaxProf>(errors);
+
+ // Only check hashability on compilers that have a compliant default-hash.
+ If<!poisoned_hash_fails_instantiation()>::Invoke(
+ ExpectHashable<T, MinProf, MaxProf>{errors});
+ }
+};
+
+// A metafunction that yields a Profile matching the set of properties that are
+// safe to be checked (lack-of-hashability is only checked on standard library
+// implementations that are standards compliant in that they provide a std::hash
+// primary template that is SFINAE-friendly)
+template <class LogicalProf, class T>
+struct MinimalCheckableProfile {
+ using type =
+ MinimalProfiles<PropertiesOfT<LogicalProf>,
+ PropertiesOfT<SyntacticConformanceProfileOf<
+ T, !PropertiesOfT<LogicalProf>::is_hashable &&
+ poisoned_hash_fails_instantiation()
+ ? CheckHashability::no
+ : CheckHashability::yes>>>;
+};
+
+// An identity metafunction
+template <class T>
+struct Always {
+ using type = T;
+};
+
+// Validate the T meets all of the necessary requirements of LogicalProf, with
+// syntactic requirements defined by the profile range [MinProf, MaxProf].
+template <class T, class LogicalProf, class MinProf, class MaxProf,
+ class... EqClasses>
+ConformanceErrors ExpectRegularityImpl(
+ OrderedEquivalenceClasses<EqClasses...> vals) {
+ ConformanceErrors errors((NameOf<T>()));
+
+ If<!constexpr_instantiation_when_unevaluated()>::Invoke(
+ ExpectModels<T, MinProf, MaxProf>(), &errors);
+
+ using minimal_profile = typename absl::conditional_t<
+ constexpr_instantiation_when_unevaluated(), Always<LogicalProf>,
+ MinimalCheckableProfile<LogicalProf, T>>::type;
+
+ If<PropertiesOfT<minimal_profile>::is_default_constructible>::Invoke(
+ ExpectDefaultConstructWithDestruct<T>{&errors});
+
+ //////////////////////////////////////////////////////////////////////////////
+ // Perform all comparison checks first, since later checks depend on their
+ // correctness.
+ //
+ // Check all of the comparisons for all values in the same equivalence
+ // class (equal with respect to comparison operators and hash the same).
+ (ForEachTupleElement)(
+ ExpectEquivalenceClassComparisons<T, minimal_profile>{&errors},
+ vals.eq_classes);
+
+ // Check all of the comparisons for each combination of values that are in
+ // different equivalence classes (not equal with respect to comparison
+ // operators).
+ absl::apply(
+ ExpectOrderedEquivalenceClassesComparisons<T, minimal_profile>{&errors},
+ vals.eq_classes);
+ //
+ //////////////////////////////////////////////////////////////////////////////
+
+ // Perform remaining checks, relying on comparisons.
+ // TODO(calabrese) short circuit if any comparisons above failed.
+ (ForEachTupleElement)(ExpectEquivalenceClass<T, minimal_profile>{&errors},
+ vals.eq_classes);
+
+ absl::apply(ExpectOrderedEquivalenceClasses<T, minimal_profile>{&errors},
+ vals.eq_classes);
+
+ return errors;
+}
+
+// A type that represents a range of profiles that are acceptable to be matched.
+//
+// `MinProf` is the minimum set of syntactic requirements that must be met.
+//
+// `MaxProf` is the maximum set of syntactic requirements that must be met.
+// This maximum is particularly useful for certain "strictness" checking. Some
+// examples for when this is useful:
+//
+// * Making sure that a type is move-only (rather than simply movable)
+//
+// * Making sure that a member function is *not* noexcept in cases where it
+// cannot be noexcept, such as if a dependent datamember has certain
+// operations that are not noexcept.
+//
+// * Making sure that a type tightly matches a spec, such as the standard.
+//
+// `LogicalProf` is the Profile for which run-time testing is to take place.
+//
+// Note: The reason for `LogicalProf` is because it is often the case, when
+// dealing with templates, that a declaration of a given operation is specified,
+// but whose body would fail to instantiate. Examples include the
+// copy-constructor of a standard container when the element-type is move-only,
+// or the comparison operators of a standard container when the element-type
+// does not have the necessary comparison operations defined. The `LogicalProf`
+// parameter allows us to capture the intent of what should be tested at
+// run-time, even in the cases where syntactically it might otherwise appear as
+// though the type undergoing testing supports more than it actually does.
+template <class LogicalProf, class MinProf = LogicalProf,
+ class MaxProf = MinProf>
+struct ProfileRange {
+ using logical_profile = LogicalProf;
+ using min_profile = MinProf;
+ using max_profile = MaxProf;
+};
+
+// Similar to ProfileRange except that it creates a profile range that is
+// coupled with a Domain and is used when testing that a type matches exactly
+// the "minimum" requirements of LogicalProf.
+template <class StrictnessDomain, class LogicalProf,
+ class MinProf = LogicalProf, class MaxProf = MinProf>
+struct StrictProfileRange {
+ // We do not yet support extension.
+ static_assert(
+ std::is_same<StrictnessDomain, RegularityDomain>::value,
+ "Currently, the only valid StrictnessDomain is RegularityDomain.");
+ using strictness_domain = StrictnessDomain;
+ using logical_profile = LogicalProf;
+ using min_profile = MinProf;
+ using max_profile = MaxProf;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A metafunction that creates a StrictProfileRange from a Domain and either a
+// Profile or ProfileRange.
+template <class StrictnessDomain, class ProfOrRange>
+struct MakeStrictProfileRange;
+
+template <class StrictnessDomain, class LogicalProf>
+struct MakeStrictProfileRange {
+ using type = StrictProfileRange<StrictnessDomain, LogicalProf>;
+};
+
+template <class StrictnessDomain, class LogicalProf, class MinProf,
+ class MaxProf>
+struct MakeStrictProfileRange<StrictnessDomain,
+ ProfileRange<LogicalProf, MinProf, MaxProf>> {
+ using type =
+ StrictProfileRange<StrictnessDomain, LogicalProf, MinProf, MaxProf>;
+};
+
+template <class StrictnessDomain, class ProfOrRange>
+using MakeStrictProfileRangeT =
+ typename MakeStrictProfileRange<StrictnessDomain, ProfOrRange>::type;
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// A profile in the RegularityDomain with the strongest possible requirements.
+using MostStrictProfile =
+ CombineProfiles<TriviallyCompleteProfile, NothrowComparableProfile>;
+
+// Forms a ProfileRange that treats the Profile as the bare minimum requirements
+// of a type.
+template <class LogicalProf, class MinProf = LogicalProf>
+using LooseProfileRange = StrictProfileRange<RegularityDomain, LogicalProf,
+ MinProf, MostStrictProfile>;
+
+template <class Prof>
+using MakeLooseProfileRangeT = Prof;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// The following classes implement the metafunction ProfileRangeOfT<T> that
+// takes either a Profile or ProfileRange and yields the ProfileRange to be
+// used during testing.
+//
+template <class T, class /*Enabler*/ = void>
+struct ProfileRangeOfImpl;
+
+template <class T>
+struct ProfileRangeOfImpl<T, absl::void_t<PropertiesOfT<T>>> {
+ using type = LooseProfileRange<T>;
+};
+
+template <class T>
+struct ProfileRangeOf : ProfileRangeOfImpl<T> {};
+
+template <class StrictnessDomain, class LogicalProf, class MinProf,
+ class MaxProf>
+struct ProfileRangeOf<
+ StrictProfileRange<StrictnessDomain, LogicalProf, MinProf, MaxProf>> {
+ using type =
+ StrictProfileRange<StrictnessDomain, LogicalProf, MinProf, MaxProf>;
+};
+
+template <class T>
+using ProfileRangeOfT = typename ProfileRangeOf<T>::type;
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// Extract the logical profile of a range (what will be runtime tested).
+template <class T>
+using LogicalProfileOfT = typename ProfileRangeOfT<T>::logical_profile;
+
+// Extract the minimal syntactic profile of a range (error if not at least).
+template <class T>
+using MinProfileOfT = typename ProfileRangeOfT<T>::min_profile;
+
+// Extract the maximum syntactic profile of a range (error if more than).
+template <class T>
+using MaxProfileOfT = typename ProfileRangeOfT<T>::max_profile;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+template <class T>
+struct IsProfileOrProfileRange : IsProfile<T>::type {};
+
+template <class StrictnessDomain, class LogicalProf, class MinProf,
+ class MaxProf>
+struct IsProfileOrProfileRange<
+ StrictProfileRange<StrictnessDomain, LogicalProf, MinProf, MaxProf>>
+ : std::true_type {};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// TODO(calabrese): Consider naming the functions in this class the same as
+// the macros (defined later on) so that auto-complete leads to the correct name
+// and so that a user cannot accidentally call a function rather than the macro
+// form.
+template <bool ExpectSuccess, class T, class... EqClasses>
+struct ExpectConformanceOf {
+ // Add a value to be tested. Subsequent calls to this function on the same
+ // object must specify logically "larger" values with respect to the
+ // comparison operators of the type, if any.
+ //
+ // NOTE: This function should not be called directly. A stateless lambda is
+ // implicitly formed and passed when using the INITIALIZER macro at the bottom
+ // of this file.
+ template <class Fun,
+ absl::enable_if_t<std::is_same<
+ ResultOfGeneratorT<GeneratorType<Fun>>, T>::value>** = nullptr>
+ ABSL_MUST_USE_RESULT ExpectConformanceOf<ExpectSuccess, T, EqClasses...,
+ EquivalenceClassType<Fun>>
+ initializer(GeneratorType<Fun> fun) && {
+ return {
+ {std::tuple_cat(absl::move(ordered_vals.eq_classes),
+ std::make_tuple((EquivalenceClass)(absl::move(fun))))},
+ std::move(expected_failed_tests)};
+ }
+
+ template <class... TestNames,
+ absl::enable_if_t<!ExpectSuccess && sizeof...(EqClasses) == 0 &&
+ absl::conjunction<std::is_convertible<
+ TestNames, absl::string_view>...>::value>** =
+ nullptr>
+ ABSL_MUST_USE_RESULT ExpectConformanceOf<ExpectSuccess, T, EqClasses...>
+ due_to(TestNames&&... test_names) && {
+ (InsertEach)(&expected_failed_tests,
+ absl::AsciiStrToLower(absl::string_view(test_names))...);
+
+ return {absl::move(ordered_vals), std::move(expected_failed_tests)};
+ }
+
+ template <class... TestNames, int = 0, // MSVC disambiguator
+ absl::enable_if_t<ExpectSuccess && sizeof...(EqClasses) == 0 &&
+ absl::conjunction<std::is_convertible<
+ TestNames, absl::string_view>...>::value>** =
+ nullptr>
+ ABSL_MUST_USE_RESULT ExpectConformanceOf<ExpectSuccess, T, EqClasses...>
+ due_to(TestNames&&... test_names) && {
+ // TODO(calabrese) Instead have DUE_TO only exist via a CRTP base.
+ // This would produce better errors messages than the static_assert.
+ static_assert(!ExpectSuccess,
+ "DUE_TO cannot be called when conformance is expected -- did "
+ "you mean to use ASSERT_NONCONFORMANCE_OF?");
+ }
+
+ // Add a value to be tested. Subsequent calls to this function on the same
+ // object must specify logically "larger" values with respect to the
+ // comparison operators of the type, if any.
+ //
+ // NOTE: This function should not be called directly. A stateful lambda is
+ // implicitly formed and passed when using the INITIALIZER macro at the bottom
+ // of this file.
+ template <class Fun,
+ absl::enable_if_t<std::is_same<
+ ResultOfGeneratorT<GeneratorType<Fun>>, T>::value>** = nullptr>
+ ABSL_MUST_USE_RESULT ExpectConformanceOf<ExpectSuccess, T, EqClasses...,
+ EquivalenceClassType<Fun>>
+ dont_class_directly_stateful_initializer(GeneratorType<Fun> fun) && {
+ return {
+ {std::tuple_cat(absl::move(ordered_vals.eq_classes),
+ std::make_tuple((EquivalenceClass)(absl::move(fun))))},
+ std::move(expected_failed_tests)};
+ }
+
+ // Add a set of value to be tested, where each value is equal with respect to
+ // the comparison operators and std::hash specialization, if defined.
+ template <
+ class... Funs,
+ absl::void_t<absl::enable_if_t<std::is_same<
+ ResultOfGeneratorT<GeneratorType<Funs>>, T>::value>...>** = nullptr>
+ ABSL_MUST_USE_RESULT ExpectConformanceOf<ExpectSuccess, T, EqClasses...,
+ EquivalenceClassType<Funs...>>
+ equivalence_class(GeneratorType<Funs>... funs) && {
+ return {{std::tuple_cat(
+ absl::move(ordered_vals.eq_classes),
+ std::make_tuple((EquivalenceClass)(absl::move(funs)...)))},
+ std::move(expected_failed_tests)};
+ }
+
+ // Execute the tests for the captured set of values, strictly matching a range
+ // of expected profiles in a given domain.
+ template <
+ class ProfRange,
+ absl::enable_if_t<IsProfileOrProfileRange<ProfRange>::value>** = nullptr>
+ ABSL_MUST_USE_RESULT ::testing::AssertionResult with_strict_profile(
+ ProfRange /*profile*/) {
+ ConformanceErrors test_result =
+ (ExpectRegularityImpl<
+ T, LogicalProfileOfT<ProfRange>, MinProfileOfT<ProfRange>,
+ MaxProfileOfT<ProfRange>>)(absl::move(ordered_vals));
+
+ return ExpectSuccess ? test_result.assertionResult()
+ : test_result.expectFailedTests(expected_failed_tests);
+ }
+
+ // Execute the tests for the captured set of values, loosely matching a range
+ // of expected profiles (loose in that an interface is allowed to be more
+ // refined that a profile suggests, such as a type having a noexcept copy
+ // constructor when all that is required is that the copy constructor exists).
+ template <class Prof, absl::enable_if_t<IsProfile<Prof>::value>** = nullptr>
+ ABSL_MUST_USE_RESULT ::testing::AssertionResult with_loose_profile(
+ Prof /*profile*/) {
+ ConformanceErrors test_result =
+ (ExpectRegularityImpl<
+ T, Prof, Prof,
+ CombineProfiles<TriviallyCompleteProfile,
+ NothrowComparableProfile>>)(absl::
+ move(ordered_vals));
+
+ return ExpectSuccess ? test_result.assertionResult()
+ : test_result.expectFailedTests(expected_failed_tests);
+ }
+
+ OrderedEquivalenceClasses<EqClasses...> ordered_vals;
+ std::set<std::string> expected_failed_tests;
+};
+
+template <class T>
+using ExpectConformanceOfType = ExpectConformanceOf</*ExpectSuccess=*/true, T>;
+
+template <class T>
+using ExpectNonconformanceOfType =
+ ExpectConformanceOf</*ExpectSuccess=*/false, T>;
+
+struct EquivalenceClassMaker {
+ // TODO(calabrese) Constrain to callable
+ template <class Fun>
+ static GeneratorType<Fun> initializer(GeneratorType<Fun> fun) {
+ return fun;
+ }
+};
+
+// A top-level macro that begins the builder pattern.
+//
+// The argument here takes the datatype to be tested.
+#define ABSL_INTERNAL_ASSERT_CONFORMANCE_OF(...) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if ABSL_INTERNAL_LPAREN \
+ const ::testing::AssertionResult gtest_ar = \
+ ABSL_INTERNAL_LPAREN ::absl::types_internal::ExpectConformanceOfType< \
+ __VA_ARGS__>()
+
+// Akin to ASSERT_CONFORMANCE_OF except that it expects failure and tries to
+// match text.
+#define ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(...) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if ABSL_INTERNAL_LPAREN \
+ const ::testing::AssertionResult gtest_ar = \
+ ABSL_INTERNAL_LPAREN ::absl::types_internal::ExpectNonconformanceOfType< \
+ __VA_ARGS__>()
+
+////////////////////////////////////////////////////////////////////////////////
+// NOTE: The following macros look like they are recursive, but are not (macros
+// cannot recurse). These actually refer to member functions of the same name.
+// This is done intentionally so that a user cannot accidentally invoke a
+// member function of the conformance-testing suite without going through the
+// macro.
+////////////////////////////////////////////////////////////////////////////////
+
+// Specify expected test failures as comma-separated strings.
+#define DUE_TO(...) due_to(__VA_ARGS__)
+
+// Specify a value to be tested.
+//
+// Note: Internally, this takes an expression and turns it into the return value
+// of lambda that captures no data. The expression is stringized during
+// preprocessing so that it can be used in error reports.
+#define INITIALIZER(...) \
+ initializer(::absl::types_internal::Generator( \
+ [] { return __VA_ARGS__; }, ABSL_INTERNAL_STRINGIZE(__VA_ARGS__)))
+
+// Specify a value to be tested.
+//
+// Note: Internally, this takes an expression and turns it into the return value
+// of lambda that captures data by reference. The expression is stringized
+// during preprocessing so that it can be used in error reports.
+#define STATEFUL_INITIALIZER(...) \
+ stateful_initializer(::absl::types_internal::Generator( \
+ [&] { return __VA_ARGS__; }, ABSL_INTERNAL_STRINGIZE(__VA_ARGS__)))
+
+// Used in the builder-pattern.
+//
+// Takes a series of INITIALIZER and/or STATEFUL_INITIALIZER invocations and
+// forwards them along to be tested, grouping them such that the testing suite
+// knows that they are supposed to represent the same logical value (the values
+// compare the same, hash the same, etc.).
+#define EQUIVALENCE_CLASS(...) \
+ equivalence_class(ABSL_INTERNAL_TRANSFORM_ARGS( \
+ ABSL_INTERNAL_PREPEND_EQ_MAKER, __VA_ARGS__))
+
+// An invocation of this or WITH_STRICT_PROFILE must end the builder-pattern.
+// It takes a Profile as its argument.
+//
+// This executes the tests and allows types that are "more referined" than the
+// profile specifies, but not less. For instance, if the Profile specifies
+// noexcept copy-constructiblity, the test will fail if the copy-constructor is
+// not noexcept, however, it will succeed if the copy constructor is trivial.
+//
+// This is useful for testing that a type meets some minimum set of
+// requirements.
+#define WITH_LOOSE_PROFILE(...) \
+ with_loose_profile( \
+ ::absl::types_internal::MakeLooseProfileRangeT<__VA_ARGS__>()) \
+ ABSL_INTERNAL_RPAREN ABSL_INTERNAL_RPAREN; \
+ else GTEST_FATAL_FAILURE_(gtest_ar.failure_message()) // NOLINT
+
+// An invocation of this or WITH_STRICT_PROFILE must end the builder-pattern.
+// It takes a Domain and a Profile as its arguments.
+//
+// This executes the tests and disallows types that differ at all from the
+// properties of the Profile. For instance, if the Profile specifies noexcept
+// copy-constructiblity, the test will fail if the copy constructor is trivial.
+//
+// This is useful for testing that a type does not do anything more than a
+// specification requires, such as to minimize things like Hyrum's Law, or more
+// commonly, to prevent a type from being "accidentally" copy-constructible in
+// a way that may produce incorrect results, simply because the user forget to
+// delete that operation.
+#define WITH_STRICT_PROFILE(...) \
+ with_strict_profile( \
+ ::absl::types_internal::MakeStrictProfileRangeT<__VA_ARGS__>()) \
+ ABSL_INTERNAL_RPAREN ABSL_INTERNAL_RPAREN; \
+ else GTEST_FATAL_FAILURE_(gtest_ar.failure_message()) // NOLINT
+
+// Internal macro that is used in the internals of the EDSL when forming
+// equivalence classes.
+#define ABSL_INTERNAL_PREPEND_EQ_MAKER(arg) \
+ ::absl::types_internal::EquivalenceClassMaker().arg
+
+} // namespace types_internal
+ABSL_NAMESPACE_END
+} // namespace absl
+
+#endif // ABSL_TYPES_INTERNAL_CONFORMANCE_TESTING_H_
diff --git a/absl/types/internal/conformance_testing_helpers.h b/absl/types/internal/conformance_testing_helpers.h
new file mode 100644
index 0000000..00775f9
--- /dev/null
+++ b/absl/types/internal/conformance_testing_helpers.h
@@ -0,0 +1,391 @@
+// Copyright 2019 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef ABSL_TYPES_INTERNAL_CONFORMANCE_TESTING_HELPERS_H_
+#define ABSL_TYPES_INTERNAL_CONFORMANCE_TESTING_HELPERS_H_
+
+// Checks to determine whether or not we can use abi::__cxa_demangle
+#if (defined(__ANDROID__) || defined(ANDROID)) && !defined(OS_ANDROID)
+#define ABSL_INTERNAL_OS_ANDROID
+#endif
+
+// We support certain compilers only. See demangle.h for details.
+#if defined(OS_ANDROID) && (defined(__i386__) || defined(__x86_64__))
+#define ABSL_TYPES_INTERNAL_HAS_CXA_DEMANGLE 0
+#elif (__GNUC__ >= 4 || (__GNUC__ >= 3 && __GNUC_MINOR__ >= 4)) && \
+ !defined(__mips__)
+#define ABSL_TYPES_INTERNAL_HAS_CXA_DEMANGLE 1
+#elif defined(__clang__) && !defined(_MSC_VER)
+#define ABSL_TYPES_INTERNAL_HAS_CXA_DEMANGLE 1
+#else
+#define ABSL_TYPES_INTERNAL_HAS_CXA_DEMANGLE 0
+#endif
+
+#include <tuple>
+#include <type_traits>
+#include <utility>
+
+#include "absl/meta/type_traits.h"
+#include "absl/strings/string_view.h"
+#include "absl/utility/utility.h"
+
+#if ABSL_TYPES_INTERNAL_HAS_CXA_DEMANGLE
+#include <cxxabi.h>
+
+#include <cstdlib>
+#endif
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+namespace types_internal {
+
+// Return a readable name for type T.
+template <class T>
+absl::string_view NameOfImpl() {
+// TODO(calabrese) Investigate using debugging:internal_demangle as a fallback.
+#if ABSL_TYPES_INTERNAL_HAS_CXA_DEMANGLE
+ int status = 0;
+ char* demangled_name = nullptr;
+
+ demangled_name =
+ abi::__cxa_demangle(typeid(T).name(), nullptr, nullptr, &status);
+
+ if (status == 0 && demangled_name != nullptr) {
+ return demangled_name;
+ } else {
+ return typeid(T).name();
+ }
+#else
+ return typeid(T).name();
+#endif
+ // NOTE: We intentionally leak demangled_name so that it remains valid
+ // throughout the remainder of the program.
+}
+
+// Given a type, returns as nice of a type name as we can produce (demangled).
+//
+// Note: This currently strips cv-qualifiers and references, but that is okay
+// because we only use this internally with unqualified object types.
+template <class T>
+std::string NameOf() {
+ static const absl::string_view result = NameOfImpl<T>();
+ return std::string(result);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Metafunction to check if a type is callable with no explicit arguments
+template <class Fun, class /*Enabler*/ = void>
+struct IsNullaryCallableImpl : std::false_type {};
+
+template <class Fun>
+struct IsNullaryCallableImpl<
+ Fun, absl::void_t<decltype(std::declval<const Fun&>()())>>
+ : std::true_type {
+ using result_type = decltype(std::declval<const Fun&>()());
+
+ template <class ValueType>
+ using for_type = std::is_same<ValueType, result_type>;
+
+ using void_if_true = void;
+};
+
+template <class Fun>
+struct IsNullaryCallable : IsNullaryCallableImpl<Fun> {};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// A type that contains a function object that returns an instance of a type
+// that is undergoing conformance testing. This function is required to always
+// return the same value upon invocation.
+template <class Fun>
+struct GeneratorType;
+
+// A type that contains a tuple of GeneratorType<Fun> where each Fun has the
+// same return type. The result of each of the different generators should all
+// be equal values, though the underlying object representation may differ (such
+// as if one returns 0.0 and another return -0.0, or if one returns an empty
+// vector and another returns an empty vector with a different capacity.
+template <class... Funs>
+struct EquivalenceClassType;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A metafunction to check if a type is a specialization of EquivalenceClassType
+template <class T>
+struct IsEquivalenceClass : std::false_type {};
+
+template <>
+struct IsEquivalenceClass<EquivalenceClassType<>> : std::true_type {
+ using self = IsEquivalenceClass;
+
+ // A metafunction to check if this EquivalenceClassType is a valid
+ // EquivalenceClassType for a type `ValueType` that is undergoing testing
+ template <class ValueType>
+ using for_type = std::true_type;
+};
+
+template <class Head, class... Tail>
+struct IsEquivalenceClass<EquivalenceClassType<Head, Tail...>>
+ : std::true_type {
+ using self = IsEquivalenceClass;
+
+ // The type undergoing conformance testing that this EquivalenceClass
+ // corresponds to
+ using result_type = typename IsNullaryCallable<Head>::result_type;
+
+ // A metafunction to check if this EquivalenceClassType is a valid
+ // EquivalenceClassType for a type `ValueType` that is undergoing testing
+ template <class ValueType>
+ using for_type = std::is_same<ValueType, result_type>;
+};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// A type that contains an ordered series of EquivalenceClassTypes, where the
+// the function object of each underlying GeneratorType has the same return type
+//
+// These equivalence classes are required to be in a logical ascending order
+// that is consistent with comparison operators that are defined for the return
+// type of each GeneratorType, if any.
+template <class... EqClasses>
+struct OrderedEquivalenceClasses;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A metafunction to determine the return type of the function object contained
+// in a GeneratorType specialization.
+template <class T>
+struct ResultOfGenerator {};
+
+template <class Fun>
+struct ResultOfGenerator<GeneratorType<Fun>> {
+ using type = decltype(std::declval<const Fun&>()());
+};
+
+template <class Fun>
+using ResultOfGeneratorT = typename ResultOfGenerator<GeneratorType<Fun>>::type;
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A metafunction that yields true iff each of Funs is a GeneratorType
+// specialization and they all contain functions with the same return type
+template <class /*Enabler*/, class... Funs>
+struct AreGeneratorsWithTheSameReturnTypeImpl : std::false_type {};
+
+template <>
+struct AreGeneratorsWithTheSameReturnTypeImpl<void> : std::true_type {};
+
+template <class Head, class... Tail>
+struct AreGeneratorsWithTheSameReturnTypeImpl<
+ typename std::enable_if<absl::conjunction<std::is_same<
+ ResultOfGeneratorT<Head>, ResultOfGeneratorT<Tail>>...>::value>::type,
+ Head, Tail...> : std::true_type {};
+
+template <class... Funs>
+struct AreGeneratorsWithTheSameReturnType
+ : AreGeneratorsWithTheSameReturnTypeImpl<void, Funs...>::type {};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// A metafunction that yields true iff each of Funs is an EquivalenceClassType
+// specialization and they all contain GeneratorType specializations that have
+// the same return type
+template <class... EqClasses>
+struct AreEquivalenceClassesOfTheSameType {
+ static_assert(sizeof...(EqClasses) != sizeof...(EqClasses), "");
+};
+
+template <>
+struct AreEquivalenceClassesOfTheSameType<> : std::true_type {
+ using self = AreEquivalenceClassesOfTheSameType;
+
+ // Metafunction to check that a type is the same as all of the equivalence
+ // classes, if any.
+ // Note: In this specialization there are no equivalence classes, so the
+ // value type is always compatible.
+ template <class /*ValueType*/>
+ using for_type = std::true_type;
+};
+
+template <class... Funs>
+struct AreEquivalenceClassesOfTheSameType<EquivalenceClassType<Funs...>>
+ : std::true_type {
+ using self = AreEquivalenceClassesOfTheSameType;
+
+ // Metafunction to check that a type is the same as all of the equivalence
+ // classes, if any.
+ template <class ValueType>
+ using for_type = typename IsEquivalenceClass<
+ EquivalenceClassType<Funs...>>::template for_type<ValueType>;
+};
+
+template <class... TailEqClasses>
+struct AreEquivalenceClassesOfTheSameType<
+ EquivalenceClassType<>, EquivalenceClassType<>, TailEqClasses...>
+ : AreEquivalenceClassesOfTheSameType<TailEqClasses...>::self {};
+
+template <class HeadNextFun, class... TailNextFuns, class... TailEqClasses>
+struct AreEquivalenceClassesOfTheSameType<
+ EquivalenceClassType<>, EquivalenceClassType<HeadNextFun, TailNextFuns...>,
+ TailEqClasses...>
+ : AreEquivalenceClassesOfTheSameType<
+ EquivalenceClassType<HeadNextFun, TailNextFuns...>,
+ TailEqClasses...>::self {};
+
+template <class HeadHeadFun, class... TailHeadFuns, class... TailEqClasses>
+struct AreEquivalenceClassesOfTheSameType<
+ EquivalenceClassType<HeadHeadFun, TailHeadFuns...>, EquivalenceClassType<>,
+ TailEqClasses...>
+ : AreEquivalenceClassesOfTheSameType<
+ EquivalenceClassType<HeadHeadFun, TailHeadFuns...>,
+ TailEqClasses...>::self {};
+
+template <class HeadHeadFun, class... TailHeadFuns, class HeadNextFun,
+ class... TailNextFuns, class... TailEqClasses>
+struct AreEquivalenceClassesOfTheSameType<
+ EquivalenceClassType<HeadHeadFun, TailHeadFuns...>,
+ EquivalenceClassType<HeadNextFun, TailNextFuns...>, TailEqClasses...>
+ : absl::conditional_t<
+ IsNullaryCallable<HeadNextFun>::template for_type<
+ typename IsNullaryCallable<HeadHeadFun>::result_type>::value,
+ AreEquivalenceClassesOfTheSameType<
+ EquivalenceClassType<HeadHeadFun, TailHeadFuns...>,
+ TailEqClasses...>,
+ std::false_type> {};
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// Execute a function for each passed-in parameter.
+template <class Fun, class... Cases>
+void ForEachParameter(const Fun& fun, const Cases&... cases) {
+ const std::initializer_list<bool> results = {
+ (static_cast<void>(fun(cases)), true)...};
+
+ (void)results;
+}
+
+// Execute a function on each passed-in parameter (using a bound function).
+template <class Fun>
+struct ForEachParameterFun {
+ template <class... T>
+ void operator()(const T&... cases) const {
+ (ForEachParameter)(fun, cases...);
+ }
+
+ Fun fun;
+};
+
+// Execute a function on each element of a tuple.
+template <class Fun, class Tup>
+void ForEachTupleElement(const Fun& fun, const Tup& tup) {
+ absl::apply(ForEachParameterFun<Fun>{fun}, tup);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Execute a function for each combination of two elements of a tuple, including
+// combinations of an element with itself.
+template <class Fun, class... T>
+struct ForEveryTwoImpl {
+ template <class Lhs>
+ struct WithBoundLhs {
+ template <class Rhs>
+ void operator()(const Rhs& rhs) const {
+ fun(lhs, rhs);
+ }
+
+ Fun fun;
+ Lhs lhs;
+ };
+
+ template <class Lhs>
+ void operator()(const Lhs& lhs) const {
+ (ForEachTupleElement)(WithBoundLhs<Lhs>{fun, lhs}, args);
+ }
+
+ Fun fun;
+ std::tuple<T...> args;
+};
+
+template <class Fun, class... T>
+void ForEveryTwo(const Fun& fun, std::tuple<T...> args) {
+ (ForEachTupleElement)(ForEveryTwoImpl<Fun, T...>{fun, args}, args);
+}
+//
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Insert all values into an associative container
+template<class Container>
+void InsertEach(Container* cont) {
+}
+
+template<class Container, class H, class... T>
+void InsertEach(Container* cont, H&& head, T&&... tail) {
+ cont->insert(head);
+ (InsertEach)(cont, tail...);
+}
+//
+////////////////////////////////////////////////////////////////////////////////
+// A template with a nested "Invoke" static-member-function that executes a
+// passed-in Callable when `Condition` is true, otherwise it ignores the
+// Callable. This is useful for executing a function object with a condition
+// that corresponds to whether or not the Callable can be safely instantiated.
+// It has some overlapping uses with C++17 `if constexpr`.
+template <bool Condition>
+struct If;
+
+template <>
+struct If</*Condition =*/false> {
+ template <class Fun, class... P>
+ static void Invoke(const Fun& /*fun*/, P&&... /*args*/) {}
+};
+
+template <>
+struct If</*Condition =*/true> {
+ template <class Fun, class... P>
+ static void Invoke(const Fun& fun, P&&... args) {
+ // TODO(calabrese) Use std::invoke equivalent instead of function-call.
+ fun(absl::forward<P>(args)...);
+ }
+};
+
+//
+// ABSL_INTERNAL_STRINGIZE(...)
+//
+// This variadic macro transforms its arguments into a c-string literal after
+// expansion.
+//
+// Example:
+//
+// ABSL_INTERNAL_STRINGIZE(std::array<int, 10>)
+//
+// Results in:
+//
+// "std::array<int, 10>"
+#define ABSL_INTERNAL_STRINGIZE(...) ABSL_INTERNAL_STRINGIZE_IMPL((__VA_ARGS__))
+#define ABSL_INTERNAL_STRINGIZE_IMPL(arg) ABSL_INTERNAL_STRINGIZE_IMPL2 arg
+#define ABSL_INTERNAL_STRINGIZE_IMPL2(...) #__VA_ARGS__
+
+} // namespace types_internal
+ABSL_NAMESPACE_END
+} // namespace absl
+
+#endif // ABSL_TYPES_INTERNAL_CONFORMANCE_TESTING_HELPERS_H_
diff --git a/absl/types/internal/conformance_testing_test.cc b/absl/types/internal/conformance_testing_test.cc
index 3dcf530..cf262fa 100644
--- a/absl/types/internal/conformance_testing_test.cc
+++ b/absl/types/internal/conformance_testing_test.cc
@@ -12,6 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
+#include "absl/types/internal/conformance_testing.h"
+
#include <new>
#include <type_traits>
#include <utility>
@@ -19,6 +21,7 @@
#include "gtest/gtest.h"
#include "absl/meta/type_traits.h"
#include "absl/types/internal/conformance_aliases.h"
+#include "absl/types/internal/conformance_profile.h"
namespace {
@@ -1181,6 +1184,373 @@
CommonComparableProfilesToTest);
INSTANTIATE_TYPED_TEST_SUITE_P(Trivial, ProfileTest, TrivialProfilesToTest);
-// TODO(calabrese) Test runtime results
+TEST(ConformanceTestingTest, Basic) {
+ using profile = ti::CombineProfiles<ti::TriviallyCompleteProfile,
+ ti::NothrowComparableProfile>;
+
+ using lim = std::numeric_limits<float>;
+
+ ABSL_INTERNAL_ASSERT_CONFORMANCE_OF(float)
+ .INITIALIZER(-lim::infinity())
+ .INITIALIZER(lim::lowest())
+ .INITIALIZER(-1.f)
+ .INITIALIZER(-lim::min())
+ .EQUIVALENCE_CLASS(INITIALIZER(-0.f), INITIALIZER(0.f))
+ .INITIALIZER(lim::min())
+ .INITIALIZER(1.f)
+ .INITIALIZER(lim::max())
+ .INITIALIZER(lim::infinity())
+ .WITH_STRICT_PROFILE(absl::types_internal::RegularityDomain, profile);
+}
+
+struct BadMoveConstruct {
+ BadMoveConstruct() = default;
+ BadMoveConstruct(BadMoveConstruct&& other) noexcept
+ : value(other.value + 1) {}
+ BadMoveConstruct& operator=(BadMoveConstruct&& other) noexcept = default;
+ int value = 0;
+
+ friend bool operator==(BadMoveConstruct const& lhs,
+ BadMoveConstruct const& rhs) {
+ return lhs.value == rhs.value;
+ }
+ friend bool operator!=(BadMoveConstruct const& lhs,
+ BadMoveConstruct const& rhs) {
+ return lhs.value != rhs.value;
+ }
+};
+
+struct BadMoveAssign {
+ BadMoveAssign() = default;
+ BadMoveAssign(BadMoveAssign&& other) noexcept = default;
+ BadMoveAssign& operator=(BadMoveAssign&& other) noexcept {
+ int new_value = other.value + 1;
+ value = new_value;
+ return *this;
+ }
+ int value = 0;
+
+ friend bool operator==(BadMoveAssign const& lhs, BadMoveAssign const& rhs) {
+ return lhs.value == rhs.value;
+ }
+ friend bool operator!=(BadMoveAssign const& lhs, BadMoveAssign const& rhs) {
+ return lhs.value != rhs.value;
+ }
+};
+
+enum class WhichCompIsBad { eq, ne, lt, le, ge, gt };
+
+template <WhichCompIsBad Which>
+struct BadCompare {
+ int value;
+
+ friend bool operator==(BadCompare const& lhs, BadCompare const& rhs) {
+ return Which == WhichCompIsBad::eq ? lhs.value != rhs.value
+ : lhs.value == rhs.value;
+ }
+
+ friend bool operator!=(BadCompare const& lhs, BadCompare const& rhs) {
+ return Which == WhichCompIsBad::ne ? lhs.value == rhs.value
+ : lhs.value != rhs.value;
+ }
+
+ friend bool operator<(BadCompare const& lhs, BadCompare const& rhs) {
+ return Which == WhichCompIsBad::lt ? lhs.value >= rhs.value
+ : lhs.value < rhs.value;
+ }
+
+ friend bool operator<=(BadCompare const& lhs, BadCompare const& rhs) {
+ return Which == WhichCompIsBad::le ? lhs.value > rhs.value
+ : lhs.value <= rhs.value;
+ }
+
+ friend bool operator>=(BadCompare const& lhs, BadCompare const& rhs) {
+ return Which == WhichCompIsBad::ge ? lhs.value < rhs.value
+ : lhs.value >= rhs.value;
+ }
+
+ friend bool operator>(BadCompare const& lhs, BadCompare const& rhs) {
+ return Which == WhichCompIsBad::gt ? lhs.value <= rhs.value
+ : lhs.value > rhs.value;
+ }
+};
+
+TEST(ConformanceTestingDeathTest, Failures) {
+ {
+ using profile = ti::CombineProfiles<ti::TriviallyCompleteProfile,
+ ti::NothrowComparableProfile>;
+
+ // Note: The initializers are intentionally in the wrong order.
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(float)
+ .INITIALIZER(1.f)
+ .INITIALIZER(0.f)
+ .WITH_LOOSE_PROFILE(profile);
+ }
+
+ {
+ using profile =
+ ti::CombineProfiles<ti::NothrowMovableProfile, ti::EquatableProfile>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadMoveConstruct)
+ .DUE_TO("Move construction")
+ .INITIALIZER(BadMoveConstruct())
+ .WITH_LOOSE_PROFILE(profile);
+ }
+
+ {
+ using profile =
+ ti::CombineProfiles<ti::NothrowMovableProfile, ti::EquatableProfile>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadMoveAssign)
+ .DUE_TO("Move assignment")
+ .INITIALIZER(BadMoveAssign())
+ .WITH_LOOSE_PROFILE(profile);
+ }
+}
+
+TEST(ConformanceTestingDeathTest, CompFailures) {
+ using profile = ti::ComparableProfile;
+
+ {
+ using BadComp = BadCompare<WhichCompIsBad::eq>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadComp)
+ .DUE_TO("Comparison")
+ .INITIALIZER(BadComp{0})
+ .INITIALIZER(BadComp{1})
+ .WITH_LOOSE_PROFILE(profile);
+ }
+
+ {
+ using BadComp = BadCompare<WhichCompIsBad::ne>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadComp)
+ .DUE_TO("Comparison")
+ .INITIALIZER(BadComp{0})
+ .INITIALIZER(BadComp{1})
+ .WITH_LOOSE_PROFILE(profile);
+ }
+
+ {
+ using BadComp = BadCompare<WhichCompIsBad::lt>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadComp)
+ .DUE_TO("Comparison")
+ .INITIALIZER(BadComp{0})
+ .INITIALIZER(BadComp{1})
+ .WITH_LOOSE_PROFILE(profile);
+ }
+
+ {
+ using BadComp = BadCompare<WhichCompIsBad::le>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadComp)
+ .DUE_TO("Comparison")
+ .INITIALIZER(BadComp{0})
+ .INITIALIZER(BadComp{1})
+ .WITH_LOOSE_PROFILE(profile);
+ }
+
+ {
+ using BadComp = BadCompare<WhichCompIsBad::ge>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadComp)
+ .DUE_TO("Comparison")
+ .INITIALIZER(BadComp{0})
+ .INITIALIZER(BadComp{1})
+ .WITH_LOOSE_PROFILE(profile);
+ }
+
+ {
+ using BadComp = BadCompare<WhichCompIsBad::gt>;
+
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadComp)
+ .DUE_TO("Comparison")
+ .INITIALIZER(BadComp{0})
+ .INITIALIZER(BadComp{1})
+ .WITH_LOOSE_PROFILE(profile);
+ }
+}
+
+struct BadSelfMove {
+ BadSelfMove() = default;
+ BadSelfMove(BadSelfMove&&) = default;
+ BadSelfMove& operator=(BadSelfMove&& other) noexcept {
+ if (this == &other) {
+ broken_state = true;
+ }
+ return *this;
+ }
+
+ friend bool operator==(const BadSelfMove& lhs, const BadSelfMove& rhs) {
+ return !(lhs.broken_state || rhs.broken_state);
+ }
+
+ friend bool operator!=(const BadSelfMove& lhs, const BadSelfMove& rhs) {
+ return lhs.broken_state || rhs.broken_state;
+ }
+
+ bool broken_state = false;
+};
+
+TEST(ConformanceTestingDeathTest, SelfMoveFailure) {
+ using profile = ti::EquatableNothrowMovableProfile;
+
+ {
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadSelfMove)
+ .DUE_TO("Move assignment")
+ .INITIALIZER(BadSelfMove())
+ .WITH_LOOSE_PROFILE(profile);
+ }
+}
+
+struct BadSelfCopy {
+ BadSelfCopy() = default;
+ BadSelfCopy(BadSelfCopy&&) = default;
+ BadSelfCopy(const BadSelfCopy&) = default;
+ BadSelfCopy& operator=(BadSelfCopy&&) = default;
+ BadSelfCopy& operator=(BadSelfCopy const& other) {
+ if (this == &other) {
+ broken_state = true;
+ }
+ return *this;
+ }
+
+ friend bool operator==(const BadSelfCopy& lhs, const BadSelfCopy& rhs) {
+ return !(lhs.broken_state || rhs.broken_state);
+ }
+
+ friend bool operator!=(const BadSelfCopy& lhs, const BadSelfCopy& rhs) {
+ return lhs.broken_state || rhs.broken_state;
+ }
+
+ bool broken_state = false;
+};
+
+TEST(ConformanceTestingDeathTest, SelfCopyFailure) {
+ using profile = ti::EquatableValueProfile;
+
+ {
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadSelfCopy)
+ .DUE_TO("Copy assignment")
+ .INITIALIZER(BadSelfCopy())
+ .WITH_LOOSE_PROFILE(profile);
+ }
+}
+
+struct BadSelfSwap {
+ friend void swap(BadSelfSwap& lhs, BadSelfSwap& rhs) noexcept {
+ if (&lhs == &rhs) lhs.broken_state = true;
+ }
+
+ friend bool operator==(const BadSelfSwap& lhs, const BadSelfSwap& rhs) {
+ return !(lhs.broken_state || rhs.broken_state);
+ }
+
+ friend bool operator!=(const BadSelfSwap& lhs, const BadSelfSwap& rhs) {
+ return lhs.broken_state || rhs.broken_state;
+ }
+
+ bool broken_state = false;
+};
+
+TEST(ConformanceTestingDeathTest, SelfSwapFailure) {
+ using profile = ti::EquatableNothrowMovableProfile;
+
+ {
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadSelfSwap)
+ .DUE_TO("Swap")
+ .INITIALIZER(BadSelfSwap())
+ .WITH_LOOSE_PROFILE(profile);
+ }
+}
+
+struct BadDefaultInitializedMoveAssign {
+ BadDefaultInitializedMoveAssign() : default_initialized(true) {}
+ explicit BadDefaultInitializedMoveAssign(int v) : value(v) {}
+ BadDefaultInitializedMoveAssign(
+ BadDefaultInitializedMoveAssign&& other) noexcept
+ : value(other.value) {}
+ BadDefaultInitializedMoveAssign& operator=(
+ BadDefaultInitializedMoveAssign&& other) noexcept {
+ value = other.value;
+ if (default_initialized) ++value; // Bad move if lhs is default initialized
+ return *this;
+ }
+
+ friend bool operator==(const BadDefaultInitializedMoveAssign& lhs,
+ const BadDefaultInitializedMoveAssign& rhs) {
+ return lhs.value == rhs.value;
+ }
+
+ friend bool operator!=(const BadDefaultInitializedMoveAssign& lhs,
+ const BadDefaultInitializedMoveAssign& rhs) {
+ return lhs.value != rhs.value;
+ }
+
+ bool default_initialized = false;
+ int value = 0;
+};
+
+TEST(ConformanceTestingDeathTest, DefaultInitializedMoveAssignFailure) {
+ using profile =
+ ti::CombineProfiles<ti::DefaultConstructibleNothrowMovableProfile,
+ ti::EquatableProfile>;
+
+ {
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadDefaultInitializedMoveAssign)
+ .DUE_TO("move assignment")
+ .INITIALIZER(BadDefaultInitializedMoveAssign(0))
+ .WITH_LOOSE_PROFILE(profile);
+ }
+}
+
+struct BadDefaultInitializedCopyAssign {
+ BadDefaultInitializedCopyAssign() : default_initialized(true) {}
+ explicit BadDefaultInitializedCopyAssign(int v) : value(v) {}
+ BadDefaultInitializedCopyAssign(
+ BadDefaultInitializedCopyAssign&& other) noexcept
+ : value(other.value) {}
+ BadDefaultInitializedCopyAssign(const BadDefaultInitializedCopyAssign& other)
+ : value(other.value) {}
+
+ BadDefaultInitializedCopyAssign& operator=(
+ BadDefaultInitializedCopyAssign&& other) noexcept {
+ value = other.value;
+ return *this;
+ }
+
+ BadDefaultInitializedCopyAssign& operator=(
+ const BadDefaultInitializedCopyAssign& other) {
+ value = other.value;
+ if (default_initialized) ++value; // Bad move if lhs is default initialized
+ return *this;
+ }
+
+ friend bool operator==(const BadDefaultInitializedCopyAssign& lhs,
+ const BadDefaultInitializedCopyAssign& rhs) {
+ return lhs.value == rhs.value;
+ }
+
+ friend bool operator!=(const BadDefaultInitializedCopyAssign& lhs,
+ const BadDefaultInitializedCopyAssign& rhs) {
+ return lhs.value != rhs.value;
+ }
+
+ bool default_initialized = false;
+ int value = 0;
+};
+
+TEST(ConformanceTestingDeathTest, DefaultInitializedAssignFailure) {
+ using profile = ti::CombineProfiles<ti::DefaultConstructibleValueProfile,
+ ti::EquatableProfile>;
+
+ {
+ ABSL_INTERNAL_ASSERT_NONCONFORMANCE_OF(BadDefaultInitializedCopyAssign)
+ .DUE_TO("copy assignment")
+ .INITIALIZER(BadDefaultInitializedCopyAssign(0))
+ .WITH_LOOSE_PROFILE(profile);
+ }
+}
} // namespace
diff --git a/absl/types/internal/parentheses.h b/absl/types/internal/parentheses.h
new file mode 100644
index 0000000..5aebee8
--- /dev/null
+++ b/absl/types/internal/parentheses.h
@@ -0,0 +1,34 @@
+// Copyright 2019 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// -----------------------------------------------------------------------------
+// parentheses.h
+// -----------------------------------------------------------------------------
+//
+// This file contains macros that expand to a left parenthesis and a right
+// parenthesis. These are in their own file and are generated from macros
+// because otherwise clang-format gets confused and clang-format off directives
+// do not help.
+//
+// The parentheses macros are used when wanting to require a rescan before
+// expansion of parenthesized text appearing after a function-style macro name.
+
+#ifndef ABSL_TYPES_INTERNAL_PARENTHESES_H_
+#define ABSL_TYPES_INTERNAL_PARENTHESES_H_
+
+#define ABSL_INTERNAL_LPAREN (
+
+#define ABSL_INTERNAL_RPAREN )
+
+#endif // ABSL_TYPES_INTERNAL_PARENTHESES_H_
diff --git a/absl/types/internal/transform_args.h b/absl/types/internal/transform_args.h
new file mode 100644
index 0000000..4a0ab42
--- /dev/null
+++ b/absl/types/internal/transform_args.h
@@ -0,0 +1,246 @@
+// Copyright 2019 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// -----------------------------------------------------------------------------
+// transform_args.h
+// -----------------------------------------------------------------------------
+//
+// This file contains a higher-order macro that "transforms" each element of a
+// a variadic argument by a provided secondary macro.
+
+#ifndef ABSL_TYPES_INTERNAL_TRANSFORM_ARGS_H_
+#define ABSL_TYPES_INTERNAL_TRANSFORM_ARGS_H_
+
+//
+// ABSL_INTERNAL_CAT(a, b)
+//
+// This macro takes two arguments and concatenates them together via ## after
+// expansion.
+//
+// Example:
+//
+// ABSL_INTERNAL_CAT(foo_, bar)
+//
+// Results in:
+//
+// foo_bar
+#define ABSL_INTERNAL_CAT(a, b) ABSL_INTERNAL_CAT_IMPL(a, b)
+#define ABSL_INTERNAL_CAT_IMPL(a, b) a##b
+
+//
+// ABSL_INTERNAL_TRANSFORM_ARGS(m, ...)
+//
+// This macro takes another macro as an argument followed by a trailing series
+// of additional parameters (up to 32 additional arguments). It invokes the
+// passed-in macro once for each of the additional arguments, with the
+// expansions separated by commas.
+//
+// Example:
+//
+// ABSL_INTERNAL_TRANSFORM_ARGS(MY_MACRO, a, b, c)
+//
+// Results in:
+//
+// MY_MACRO(a), MY_MACRO(b), MY_MACRO(c)
+//
+// TODO(calabrese) Handle no arguments as a special case.
+#define ABSL_INTERNAL_TRANSFORM_ARGS(m, ...) \
+ ABSL_INTERNAL_CAT(ABSL_INTERNAL_TRANSFORM_ARGS, \
+ ABSL_INTERNAL_NUM_ARGS(__VA_ARGS__)) \
+ (m, __VA_ARGS__)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS1(m, a0) m(a0)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS2(m, a0, a1) m(a0), m(a1)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS3(m, a0, a1, a2) m(a0), m(a1), m(a2)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS4(m, a0, a1, a2, a3) \
+ m(a0), m(a1), m(a2), m(a3)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS5(m, a0, a1, a2, a3, a4) \
+ m(a0), m(a1), m(a2), m(a3), m(a4)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS6(m, a0, a1, a2, a3, a4, a5) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS7(m, a0, a1, a2, a3, a4, a5, a6) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS8(m, a0, a1, a2, a3, a4, a5, a6, a7) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS9(m, a0, a1, a2, a3, a4, a5, a6, a7, a8) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS10(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS11(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), m(a10)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS12(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS13(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS14(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS15(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS16(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS17(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS18(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS19(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS20(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18, a19) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS21(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18, a19, a20) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS22(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18, a19, a20, a21) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS23(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18, a19, a20, a21, a22) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS24(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18, a19, a20, a21, a22, a23) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS25(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18, a19, a20, a21, a22, a23, a24) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS26( \
+ m, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, \
+ a16, a17, a18, a19, a20, a21, a22, a23, a24, a25) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24), m(a25)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS27( \
+ m, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, \
+ a16, a17, a18, a19, a20, a21, a22, a23, a24, a25, a26) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24), m(a25), m(a26)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS28( \
+ m, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, \
+ a16, a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24), m(a25), m(a26), m(a27)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS29( \
+ m, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, \
+ a16, a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27, a28) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24), m(a25), m(a26), m(a27), \
+ m(a28)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS30( \
+ m, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, \
+ a16, a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27, a28, a29) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24), m(a25), m(a26), m(a27), \
+ m(a28), m(a29)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS31( \
+ m, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, \
+ a16, a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27, a28, a29, a30) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24), m(a25), m(a26), m(a27), \
+ m(a28), m(a29), m(a30)
+
+#define ABSL_INTERNAL_TRANSFORM_ARGS32(m, a0, a1, a2, a3, a4, a5, a6, a7, a8, \
+ a9, a10, a11, a12, a13, a14, a15, a16, \
+ a17, a18, a19, a20, a21, a22, a23, a24, \
+ a25, a26, a27, a28, a29, a30, a31) \
+ m(a0), m(a1), m(a2), m(a3), m(a4), m(a5), m(a6), m(a7), m(a8), m(a9), \
+ m(a10), m(a11), m(a12), m(a13), m(a14), m(a15), m(a16), m(a17), m(a18), \
+ m(a19), m(a20), m(a21), m(a22), m(a23), m(a24), m(a25), m(a26), m(a27), \
+ m(a28), m(a29), m(a30), m(a31)
+
+#define ABSL_INTERNAL_NUM_ARGS_IMPL(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, \
+ a10, a11, a12, a13, a14, a15, a16, a17, \
+ a18, a19, a20, a21, a22, a23, a24, a25, \
+ a26, a27, a28, a29, a30, a31, result, ...) \
+ result
+
+#define ABSL_INTERNAL_FORCE_EXPANSION(...) __VA_ARGS__
+
+#define ABSL_INTERNAL_NUM_ARGS(...) \
+ ABSL_INTERNAL_FORCE_EXPANSION(ABSL_INTERNAL_NUM_ARGS_IMPL( \
+ __VA_ARGS__, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, \
+ 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, ))
+
+#endif // ABSL_TYPES_INTERNAL_TRANSFORM_ARGS_H_
diff --git a/absl/types/optional_test.cc b/absl/types/optional_test.cc
index 874334e..7ef142c 100644
--- a/absl/types/optional_test.cc
+++ b/absl/types/optional_test.cc
@@ -1051,7 +1051,7 @@
#ifdef ABSL_HAVE_EXCEPTIONS
EXPECT_THROW((void)empty.value(), absl::bad_optional_access);
#else
- EXPECT_DEATH((void)empty.value(), "Bad optional access");
+ EXPECT_DEATH_IF_SUPPORTED((void)empty.value(), "Bad optional access");
#endif
// test constexpr value()
diff --git a/absl/types/variant_test.cc b/absl/types/variant_test.cc
index 4639c42..cf8f7f3 100644
--- a/absl/types/variant_test.cc
+++ b/absl/types/variant_test.cc
@@ -50,7 +50,7 @@
#else
#define ABSL_VARIANT_TEST_EXPECT_FAIL(expr, exception_t, text) \
- EXPECT_DEATH(expr, text)
+ EXPECT_DEATH_IF_SUPPORTED(expr, text)
#endif // ABSL_HAVE_EXCEPTIONS
diff --git a/ci/absl_alternate_options.h b/ci/absl_alternate_options.h
new file mode 100644
index 0000000..29b020d
--- /dev/null
+++ b/ci/absl_alternate_options.h
@@ -0,0 +1,29 @@
+// Copyright 2019 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Alternate options.h file, used in continuous integration testing to exercise
+// option settings not used by default.
+
+#ifndef ABSL_BASE_OPTIONS_H_
+#define ABSL_BASE_OPTIONS_H_
+
+#define ABSL_OPTION_USE_STD_ANY 0
+#define ABSL_OPTION_USE_STD_OPTIONAL 0
+#define ABSL_OPTION_USE_STD_STRING_VIEW 0
+#define ABSL_OPTION_USE_STD_VARIANT 0
+#define ABSL_OPTION_USE_INLINE_NAMESPACE 1
+#define ABSL_OPTION_INLINE_NAMESPACE_NAME ns
+#define ABSL_OPTION_HARDENED 1
+
+#endif // ABSL_BASE_OPTIONS_H_
diff --git a/ci/cmake_install_test.sh b/ci/cmake_install_test.sh
new file mode 100755
index 0000000..b31e4b8
--- /dev/null
+++ b/ci/cmake_install_test.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_GCC_LATEST_CONTAINER}
+
+time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+ --workdir=/abseil-cpp \
+ --tmpfs=/buildfs:exec \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CFLAGS="-Werror" \
+ -e CXXFLAGS="-Werror" \
+ ${DOCKER_CONTAINER} \
+ /bin/bash CMake/install_test_project/test.sh $@
diff --git a/ci/linux_clang-latest_libcxx_asan_bazel.sh b/ci/linux_clang-latest_libcxx_asan_bazel.sh
new file mode 100755
index 0000000..44794eb
--- /dev/null
+++ b/ci/linux_clang-latest_libcxx_asan_bazel.sh
@@ -0,0 +1,103 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script that can be invoked to test abseil-cpp in a hermetic environment
+# using a Docker image on Linux. You must have Docker installed to use this
+# script.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${STD:-} ]]; then
+ STD="c++11 c++14 c++17 c++20"
+fi
+
+if [[ -z ${COMPILATION_MODE:-} ]]; then
+ COMPILATION_MODE="fastbuild opt"
+fi
+
+if [[ -z ${EXCEPTIONS_MODE:-} ]]; then
+ EXCEPTIONS_MODE="-fno-exceptions -fexceptions"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_CLANG_LATEST_CONTAINER}
+
+# USE_BAZEL_CACHE=1 only works on Kokoro.
+# Without access to the credentials this won't work.
+if [[ ${USE_BAZEL_CACHE:-0} -ne 0 ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_KEYSTORE_DIR}:/keystore:ro ${DOCKER_EXTRA_ARGS:-}"
+ # Bazel doesn't track changes to tools outside of the workspace
+ # (e.g. /usr/bin/gcc), so by appending the docker container to the
+ # remote_http_cache url, we make changes to the container part of
+ # the cache key. Hashing the key is to make it shorter and url-safe.
+ container_key=$(echo ${DOCKER_CONTAINER} | sha256sum | head -c 16)
+ BAZEL_EXTRA_ARGS="--remote_http_cache=https://storage.googleapis.com/absl-bazel-remote-cache/${container_key} --google_credentials=/keystore/73103_absl-bazel-remote-cache ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+# Avoid depending on external sites like GitHub by checking --distdir for
+# external dependencies first.
+# https://docs.bazel.build/versions/master/guide.html#distdir
+if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -d "${KOKORO_GFILE_DIR}/distdir" ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_GFILE_DIR}/distdir:/distdir:ro ${DOCKER_EXTRA_ARGS:-}"
+ BAZEL_EXTRA_ARGS="--distdir=/distdir ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+for std in ${STD}; do
+ for compilation_mode in ${COMPILATION_MODE}; do
+ for exceptions_mode in ${EXCEPTIONS_MODE}; do
+ echo "--------------------------------------------------------------------"
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+ --workdir=/abseil-cpp \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CC="/opt/llvm/clang/bin/clang" \
+ -e BAZEL_COMPILER="llvm" \
+ -e BAZEL_CXXOPTS="-std=${std}:-nostdinc++" \
+ -e BAZEL_LINKOPTS="-L/opt/llvm/libcxx/lib:-lc++:-lc++abi:-lm:-Wl,-rpath=/opt/llvm/libcxx/lib" \
+ -e CPLUS_INCLUDE_PATH="/opt/llvm/libcxx/include/c++/v1" \
+ ${DOCKER_EXTRA_ARGS:-} \
+ ${DOCKER_CONTAINER} \
+ /usr/local/bin/bazel test ... \
+ --compilation_mode="${compilation_mode}" \
+ --copt="${exceptions_mode}" \
+ --copt="-DDYNAMIC_ANNOTATIONS_ENABLED=1" \
+ --copt="-DADDRESS_SANITIZER" \
+ --copt="-DUNDEFINED_BEHAVIOR_SANITIZER" \
+ --copt="-fsanitize=address" \
+ --copt="-fsanitize=float-divide-by-zero" \
+ --copt="-fsanitize=nullability" \
+ --copt="-fsanitize=undefined" \
+ --copt="-fno-sanitize-blacklist" \
+ --copt=-Werror \
+ --keep_going \
+ --linkopt="-fsanitize=address" \
+ --linkopt="-fsanitize-link-c++-runtime" \
+ --show_timestamps \
+ --test_env="ASAN_SYMBOLIZER_PATH=/opt/llvm/clang/bin/llvm-symbolizer" \
+ --test_env="TZDIR=/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo" \
+ --test_env="UBSAN_OPTIONS=print_stacktrace=1" \
+ --test_env="UBSAN_SYMBOLIZER_PATH=/opt/llvm/clang/bin/llvm-symbolizer" \
+ --test_output=errors \
+ --test_tag_filters="-benchmark,-noasan" \
+ ${BAZEL_EXTRA_ARGS:-}
+ done
+ done
+done
diff --git a/ci/linux_clang-latest_libcxx_bazel.sh b/ci/linux_clang-latest_libcxx_bazel.sh
new file mode 100755
index 0000000..eb04e69
--- /dev/null
+++ b/ci/linux_clang-latest_libcxx_bazel.sh
@@ -0,0 +1,98 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script that can be invoked to test abseil-cpp in a hermetic environment
+# using a Docker image on Linux. You must have Docker installed to use this
+# script.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${STD:-} ]]; then
+ STD="c++11 c++14 c++17 c++20"
+fi
+
+if [[ -z ${COMPILATION_MODE:-} ]]; then
+ COMPILATION_MODE="fastbuild opt"
+fi
+
+if [[ -z ${EXCEPTIONS_MODE:-} ]]; then
+ EXCEPTIONS_MODE="-fno-exceptions -fexceptions"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_CLANG_LATEST_CONTAINER}
+
+# USE_BAZEL_CACHE=1 only works on Kokoro.
+# Without access to the credentials this won't work.
+if [[ ${USE_BAZEL_CACHE:-0} -ne 0 ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_KEYSTORE_DIR}:/keystore:ro ${DOCKER_EXTRA_ARGS:-}"
+ # Bazel doesn't track changes to tools outside of the workspace
+ # (e.g. /usr/bin/gcc), so by appending the docker container to the
+ # remote_http_cache url, we make changes to the container part of
+ # the cache key. Hashing the key is to make it shorter and url-safe.
+ container_key=$(echo ${DOCKER_CONTAINER} | sha256sum | head -c 16)
+ BAZEL_EXTRA_ARGS="--remote_http_cache=https://storage.googleapis.com/absl-bazel-remote-cache/${container_key} --google_credentials=/keystore/73103_absl-bazel-remote-cache ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+# Avoid depending on external sites like GitHub by checking --distdir for
+# external dependencies first.
+# https://docs.bazel.build/versions/master/guide.html#distdir
+if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -d "${KOKORO_GFILE_DIR}/distdir" ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_GFILE_DIR}/distdir:/distdir:ro ${DOCKER_EXTRA_ARGS:-}"
+ BAZEL_EXTRA_ARGS="--distdir=/distdir ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+for std in ${STD}; do
+ for compilation_mode in ${COMPILATION_MODE}; do
+ for exceptions_mode in ${EXCEPTIONS_MODE}; do
+ echo "--------------------------------------------------------------------"
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp-ro:ro" \
+ --tmpfs=/abseil-cpp \
+ --workdir=/abseil-cpp \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CC="/opt/llvm/clang/bin/clang" \
+ -e BAZEL_COMPILER="llvm" \
+ -e BAZEL_CXXOPTS="-std=${std}:-nostdinc++" \
+ -e BAZEL_LINKOPTS="-L/opt/llvm/libcxx/lib:-lc++:-lc++abi:-lm:-Wl,-rpath=/opt/llvm/libcxx/lib" \
+ -e CPLUS_INCLUDE_PATH="/opt/llvm/libcxx/include/c++/v1" \
+ ${DOCKER_EXTRA_ARGS:-} \
+ ${DOCKER_CONTAINER} \
+ /bin/sh -c "
+ cp -r /abseil-cpp-ro/* /abseil-cpp/
+ if [ -n \"${ALTERNATE_OPTIONS:-}\" ]; then
+ cp ${ALTERNATE_OPTIONS:-} absl/base/options.h || exit 1
+ fi
+ /usr/local/bin/bazel test ... \
+ --compilation_mode=\"${compilation_mode}\" \
+ --copt=\"${exceptions_mode}\" \
+ --copt=-Werror \
+ --define=\"absl=1\" \
+ --keep_going \
+ --show_timestamps \
+ --test_env=\"GTEST_INSTALL_FAILURE_SIGNAL_HANDLER=1\" \
+ --test_env=\"TZDIR=/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo\" \
+ --test_output=errors \
+ --test_tag_filters=-benchmark \
+ ${BAZEL_EXTRA_ARGS:-}"
+ done
+ done
+done
diff --git a/ci/linux_clang-latest_libcxx_tsan_bazel.sh b/ci/linux_clang-latest_libcxx_tsan_bazel.sh
new file mode 100755
index 0000000..c2eb5ba
--- /dev/null
+++ b/ci/linux_clang-latest_libcxx_tsan_bazel.sh
@@ -0,0 +1,98 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script that can be invoked to test abseil-cpp in a hermetic environment
+# using a Docker image on Linux. You must have Docker installed to use this
+# script.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${STD:-} ]]; then
+ STD="c++11 c++14 c++17 c++20"
+fi
+
+if [[ -z ${COMPILATION_MODE:-} ]]; then
+ COMPILATION_MODE="fastbuild opt"
+fi
+
+if [[ -z ${EXCEPTIONS_MODE:-} ]]; then
+ EXCEPTIONS_MODE="-fno-exceptions -fexceptions"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_CLANG_LATEST_CONTAINER}
+
+# USE_BAZEL_CACHE=1 only works on Kokoro.
+# Without access to the credentials this won't work.
+if [[ ${USE_BAZEL_CACHE:-0} -ne 0 ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_KEYSTORE_DIR}:/keystore:ro ${DOCKER_EXTRA_ARGS:-}"
+ # Bazel doesn't track changes to tools outside of the workspace
+ # (e.g. /usr/bin/gcc), so by appending the docker container to the
+ # remote_http_cache url, we make changes to the container part of
+ # the cache key. Hashing the key is to make it shorter and url-safe.
+ container_key=$(echo ${DOCKER_CONTAINER} | sha256sum | head -c 16)
+ BAZEL_EXTRA_ARGS="--remote_http_cache=https://storage.googleapis.com/absl-bazel-remote-cache/${container_key} --google_credentials=/keystore/73103_absl-bazel-remote-cache ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+# Avoid depending on external sites like GitHub by checking --distdir for
+# external dependencies first.
+# https://docs.bazel.build/versions/master/guide.html#distdir
+if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -d "${KOKORO_GFILE_DIR}/distdir" ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_GFILE_DIR}/distdir:/distdir:ro ${DOCKER_EXTRA_ARGS:-}"
+ BAZEL_EXTRA_ARGS="--distdir=/distdir ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+for std in ${STD}; do
+ for compilation_mode in ${COMPILATION_MODE}; do
+ for exceptions_mode in ${EXCEPTIONS_MODE}; do
+ echo "--------------------------------------------------------------------"
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+ --workdir=/abseil-cpp \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CC="/opt/llvm/clang/bin/clang" \
+ -e BAZEL_COMPILER="llvm" \
+ -e BAZEL_CXXOPTS="-std=${std}:-nostdinc++" \
+ -e BAZEL_LINKOPTS="-L/opt/llvm/libcxx-tsan/lib:-lc++:-lc++abi:-lm:-Wl,-rpath=/opt/llvm/libcxx-tsan/lib" \
+ -e CPLUS_INCLUDE_PATH="/opt/llvm/libcxx-tsan/include/c++/v1" \
+ ${DOCKER_EXTRA_ARGS:-} \
+ ${DOCKER_CONTAINER} \
+ /usr/local/bin/bazel test ... \
+ --build_tag_filters="-notsan" \
+ --compilation_mode="${compilation_mode}" \
+ --copt="${exceptions_mode}" \
+ --copt="-DDYNAMIC_ANNOTATIONS_ENABLED=1" \
+ --copt="-DTHREAD_SANITIZER" \
+ --copt="-fsanitize=thread" \
+ --copt="-fno-sanitize-blacklist" \
+ --copt=-Werror \
+ --keep_going \
+ --linkopt="-fsanitize=thread" \
+ --show_timestamps \
+ --test_env="TSAN_OPTIONS=report_atomic_races=0" \
+ --test_env="TSAN_SYMBOLIZER_PATH=/opt/llvm/clang/bin/llvm-symbolizer" \
+ --test_env="TZDIR=/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo" \
+ --test_output=errors \
+ --test_tag_filters="-benchmark,-notsan" \
+ ${BAZEL_EXTRA_ARGS:-}
+ done
+ done
+done
diff --git a/ci/linux_clang-latest_libstdcxx_bazel.sh b/ci/linux_clang-latest_libstdcxx_bazel.sh
new file mode 100755
index 0000000..0192ee4
--- /dev/null
+++ b/ci/linux_clang-latest_libstdcxx_bazel.sh
@@ -0,0 +1,91 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script that can be invoked to test abseil-cpp in a hermetic environment
+# using a Docker image on Linux. You must have Docker installed to use this
+# script.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${STD:-} ]]; then
+ STD="c++11 c++14 c++17 c++20"
+fi
+
+if [[ -z ${COMPILATION_MODE:-} ]]; then
+ COMPILATION_MODE="fastbuild opt"
+fi
+
+if [[ -z ${EXCEPTIONS_MODE:-} ]]; then
+ EXCEPTIONS_MODE="-fno-exceptions -fexceptions"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_CLANG_LATEST_CONTAINER}
+
+# USE_BAZEL_CACHE=1 only works on Kokoro.
+# Without access to the credentials this won't work.
+if [[ ${USE_BAZEL_CACHE:-0} -ne 0 ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_KEYSTORE_DIR}:/keystore:ro ${DOCKER_EXTRA_ARGS:-}"
+ # Bazel doesn't track changes to tools outside of the workspace
+ # (e.g. /usr/bin/gcc), so by appending the docker container to the
+ # remote_http_cache url, we make changes to the container part of
+ # the cache key. Hashing the key is to make it shorter and url-safe.
+ container_key=$(echo ${DOCKER_CONTAINER} | sha256sum | head -c 16)
+ BAZEL_EXTRA_ARGS="--remote_http_cache=https://storage.googleapis.com/absl-bazel-remote-cache/${container_key} --google_credentials=/keystore/73103_absl-bazel-remote-cache ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+# Avoid depending on external sites like GitHub by checking --distdir for
+# external dependencies first.
+# https://docs.bazel.build/versions/master/guide.html#distdir
+if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -d "${KOKORO_GFILE_DIR}/distdir" ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_GFILE_DIR}/distdir:/distdir:ro ${DOCKER_EXTRA_ARGS:-}"
+ BAZEL_EXTRA_ARGS="--distdir=/distdir ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+for std in ${STD}; do
+ for compilation_mode in ${COMPILATION_MODE}; do
+ for exceptions_mode in ${EXCEPTIONS_MODE}; do
+ echo "--------------------------------------------------------------------"
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+ --workdir=/abseil-cpp \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CC="/opt/llvm/clang/bin/clang" \
+ -e BAZEL_COMPILER="llvm" \
+ -e BAZEL_CXXOPTS="-std=${std}" \
+ -e CPLUS_INCLUDE_PATH="/usr/include/c++/8" \
+ ${DOCKER_EXTRA_ARGS:-} \
+ ${DOCKER_CONTAINER} \
+ /usr/local/bin/bazel test ... \
+ --compilation_mode="${compilation_mode}" \
+ --copt="${exceptions_mode}" \
+ --copt=-Werror \
+ --define="absl=1" \
+ --keep_going \
+ --show_timestamps \
+ --test_env="GTEST_INSTALL_FAILURE_SIGNAL_HANDLER=1" \
+ --test_env="TZDIR=/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo" \
+ --test_output=errors \
+ --test_tag_filters=-benchmark \
+ ${BAZEL_EXTRA_ARGS:-}
+ done
+ done
+done
diff --git a/ci/linux_docker_containers.sh b/ci/linux_docker_containers.sh
new file mode 100644
index 0000000..82a10ac
--- /dev/null
+++ b/ci/linux_docker_containers.sh
@@ -0,0 +1,21 @@
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# The file contains Docker container identifiers currently used by test scripts.
+# Test scripts should source this file to get the identifiers.
+
+readonly LINUX_ALPINE_CONTAINER="gcr.io/google.com/absl-177019/alpine:20191016"
+readonly LINUX_CLANG_LATEST_CONTAINER="gcr.io/google.com/absl-177019/linux_clang-latest:20200401"
+readonly LINUX_GCC_LATEST_CONTAINER="gcr.io/google.com/absl-177019/linux_gcc-latest:20200319"
+readonly LINUX_GCC_49_CONTAINER="gcr.io/google.com/absl-177019/linux_gcc-4.9:20191018"
diff --git a/ci/linux_gcc-4.9_libstdcxx_bazel.sh b/ci/linux_gcc-4.9_libstdcxx_bazel.sh
new file mode 100755
index 0000000..8e6540c
--- /dev/null
+++ b/ci/linux_gcc-4.9_libstdcxx_bazel.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script that can be invoked to test abseil-cpp in a hermetic environment
+# using a Docker image on Linux. You must have Docker installed to use this
+# script.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${STD:-} ]]; then
+ STD="c++11 c++14"
+fi
+
+if [[ -z ${COMPILATION_MODE:-} ]]; then
+ COMPILATION_MODE="fastbuild opt"
+fi
+
+if [[ -z ${EXCEPTIONS_MODE:-} ]]; then
+ EXCEPTIONS_MODE="-fno-exceptions -fexceptions"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_GCC_49_CONTAINER}
+
+# USE_BAZEL_CACHE=1 only works on Kokoro.
+# Without access to the credentials this won't work.
+if [[ ${USE_BAZEL_CACHE:-0} -ne 0 ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_KEYSTORE_DIR}:/keystore:ro ${DOCKER_EXTRA_ARGS:-}"
+ # Bazel doesn't track changes to tools outside of the workspace
+ # (e.g. /usr/bin/gcc), so by appending the docker container to the
+ # remote_http_cache url, we make changes to the container part of
+ # the cache key. Hashing the key is to make it shorter and url-safe.
+ container_key=$(echo ${DOCKER_CONTAINER} | sha256sum | head -c 16)
+ BAZEL_EXTRA_ARGS="--remote_http_cache=https://storage.googleapis.com/absl-bazel-remote-cache/${container_key} --google_credentials=/keystore/73103_absl-bazel-remote-cache ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+# Avoid depending on external sites like GitHub by checking --distdir for
+# external dependencies first.
+# https://docs.bazel.build/versions/master/guide.html#distdir
+if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -d "${KOKORO_GFILE_DIR}/distdir" ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_GFILE_DIR}/distdir:/distdir:ro ${DOCKER_EXTRA_ARGS:-}"
+ BAZEL_EXTRA_ARGS="--distdir=/distdir ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+for std in ${STD}; do
+ for compilation_mode in ${COMPILATION_MODE}; do
+ for exceptions_mode in ${EXCEPTIONS_MODE}; do
+ echo "--------------------------------------------------------------------"
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+ --workdir=/abseil-cpp \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CC="/usr/bin/gcc-4.9" \
+ -e BAZEL_CXXOPTS="-std=${std}" \
+ ${DOCKER_EXTRA_ARGS:-} \
+ ${DOCKER_CONTAINER} \
+ /usr/local/bin/bazel test ... \
+ --compilation_mode="${compilation_mode}" \
+ --copt="${exceptions_mode}" \
+ --copt=-Werror \
+ --define="absl=1" \
+ --keep_going \
+ --show_timestamps \
+ --test_env="GTEST_INSTALL_FAILURE_SIGNAL_HANDLER=1" \
+ --test_env="TZDIR=/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo" \
+ --test_output=errors \
+ --test_tag_filters=-benchmark \
+ ${BAZEL_EXTRA_ARGS:-}
+ done
+ done
+done
diff --git a/ci/linux_gcc-latest_libstdcxx_bazel.sh b/ci/linux_gcc-latest_libstdcxx_bazel.sh
new file mode 100755
index 0000000..3ec0226
--- /dev/null
+++ b/ci/linux_gcc-latest_libstdcxx_bazel.sh
@@ -0,0 +1,95 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script that can be invoked to test abseil-cpp in a hermetic environment
+# using a Docker image on Linux. You must have Docker installed to use this
+# script.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${STD:-} ]]; then
+ STD="c++11 c++14 c++17 c++2a"
+fi
+
+if [[ -z ${COMPILATION_MODE:-} ]]; then
+ COMPILATION_MODE="fastbuild opt"
+fi
+
+if [[ -z ${EXCEPTIONS_MODE:-} ]]; then
+ EXCEPTIONS_MODE="-fno-exceptions -fexceptions"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_GCC_LATEST_CONTAINER}
+
+# USE_BAZEL_CACHE=1 only works on Kokoro.
+# Without access to the credentials this won't work.
+if [[ ${USE_BAZEL_CACHE:-0} -ne 0 ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_KEYSTORE_DIR}:/keystore:ro ${DOCKER_EXTRA_ARGS:-}"
+ # Bazel doesn't track changes to tools outside of the workspace
+ # (e.g. /usr/bin/gcc), so by appending the docker container to the
+ # remote_http_cache url, we make changes to the container part of
+ # the cache key. Hashing the key is to make it shorter and url-safe.
+ container_key=$(echo ${DOCKER_CONTAINER} | sha256sum | head -c 16)
+ BAZEL_EXTRA_ARGS="--remote_http_cache=https://storage.googleapis.com/absl-bazel-remote-cache/${container_key} --google_credentials=/keystore/73103_absl-bazel-remote-cache ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+# Avoid depending on external sites like GitHub by checking --distdir for
+# external dependencies first.
+# https://docs.bazel.build/versions/master/guide.html#distdir
+if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -d "${KOKORO_GFILE_DIR}/distdir" ]]; then
+ DOCKER_EXTRA_ARGS="--volume=${KOKORO_GFILE_DIR}/distdir:/distdir:ro ${DOCKER_EXTRA_ARGS:-}"
+ BAZEL_EXTRA_ARGS="--distdir=/distdir ${BAZEL_EXTRA_ARGS:-}"
+fi
+
+for std in ${STD}; do
+ for compilation_mode in ${COMPILATION_MODE}; do
+ for exceptions_mode in ${EXCEPTIONS_MODE}; do
+ echo "--------------------------------------------------------------------"
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp-ro:ro" \
+ --tmpfs=/abseil-cpp \
+ --workdir=/abseil-cpp \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CC="/usr/local/bin/gcc" \
+ -e BAZEL_CXXOPTS="-std=${std}" \
+ ${DOCKER_EXTRA_ARGS:-} \
+ ${DOCKER_CONTAINER} \
+ /bin/sh -c "
+ cp -r /abseil-cpp-ro/* /abseil-cpp/
+ if [[ -n \"${ALTERNATE_OPTIONS:-}\" ]]; then
+ cp ${ALTERNATE_OPTIONS:-} absl/base/options.h || exit 1
+ fi
+ /usr/local/bin/bazel test ... \
+ --compilation_mode=\"${compilation_mode}\" \
+ --copt=\"${exceptions_mode}\" \
+ --copt=-Werror \
+ --define=\"absl=1\" \
+ --keep_going \
+ --show_timestamps \
+ --test_env=\"GTEST_INSTALL_FAILURE_SIGNAL_HANDLER=1\" \
+ --test_env=\"TZDIR=/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo\" \
+ --test_output=errors \
+ --test_tag_filters=-benchmark \
+ ${BAZEL_EXTRA_ARGS:-}"
+ done
+ done
+done
diff --git a/ci/linux_gcc-latest_libstdcxx_cmake.sh b/ci/linux_gcc-latest_libstdcxx_cmake.sh
new file mode 100755
index 0000000..db5f691
--- /dev/null
+++ b/ci/linux_gcc-latest_libstdcxx_cmake.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# TODO(absl-team): This script isn't fully hermetic because
+# -DABSL_USE_GOOGLETEST_HEAD=ON means that this script isn't pinned to a fixed
+# version of GoogleTest. This means that an upstream change to GoogleTest could
+# break this test. Fix this by allowing this script to pin to a known-good
+# version of GoogleTest.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${ABSL_CMAKE_CXX_STANDARDS:-} ]]; then
+ ABSL_CMAKE_CXX_STANDARDS="11 14 17"
+fi
+
+if [[ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]]; then
+ ABSL_CMAKE_BUILD_TYPES="Debug Release"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_GCC_LATEST_CONTAINER}
+
+for std in ${ABSL_CMAKE_CXX_STANDARDS}; do
+ for compilation_mode in ${ABSL_CMAKE_BUILD_TYPES}; do
+ echo "--------------------------------------------------------------------"
+ echo "Testing with CMAKE_BUILD_TYPE=${compilation_mode} and -std=c++${std}"
+
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+ --workdir=/abseil-cpp \
+ --tmpfs=/buildfs:exec \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CFLAGS="-Werror" \
+ -e CXXFLAGS="-Werror" \
+ ${DOCKER_CONTAINER} \
+ /bin/bash -c "
+ cd /buildfs && \
+ cmake /abseil-cpp \
+ -DABSL_USE_GOOGLETEST_HEAD=ON \
+ -DABSL_RUN_TESTS=ON \
+ -DCMAKE_BUILD_TYPE=${compilation_mode} \
+ -DCMAKE_CXX_STANDARD=${std} && \
+ make -j$(nproc) && \
+ ctest -j$(nproc) --output-on-failure"
+ done
+done
diff --git a/ci/linux_gcc_alpine_cmake.sh b/ci/linux_gcc_alpine_cmake.sh
new file mode 100755
index 0000000..f57ab12
--- /dev/null
+++ b/ci/linux_gcc_alpine_cmake.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# TODO(absl-team): This script isn't fully hermetic because
+# -DABSL_USE_GOOGLETEST_HEAD=ON means that this script isn't pinned to a fixed
+# version of GoogleTest. This means that an upstream change to GoogleTest could
+# break this test. Fix this by allowing this script to pin to a known-good
+# version of GoogleTest.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [[ -z ${ABSL_CMAKE_CXX_STANDARDS:-} ]]; then
+ ABSL_CMAKE_CXX_STANDARDS="11 14 17"
+fi
+
+if [[ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]]; then
+ ABSL_CMAKE_BUILD_TYPES="Debug Release"
+fi
+
+source "${ABSEIL_ROOT}/ci/linux_docker_containers.sh"
+readonly DOCKER_CONTAINER=${LINUX_ALPINE_CONTAINER}
+
+for std in ${ABSL_CMAKE_CXX_STANDARDS}; do
+ for compilation_mode in ${ABSL_CMAKE_BUILD_TYPES}; do
+ echo "--------------------------------------------------------------------"
+ echo "Testing with CMAKE_BUILD_TYPE=${compilation_mode} and -std=c++${std}"
+
+ time docker run \
+ --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+ --workdir=/abseil-cpp \
+ --tmpfs=/buildfs:exec \
+ --cap-add=SYS_PTRACE \
+ --rm \
+ -e CFLAGS="-Werror" \
+ -e CXXFLAGS="-Werror" \
+ "${DOCKER_CONTAINER}" \
+ /bin/sh -c "
+ cd /buildfs && \
+ cmake /abseil-cpp \
+ -DABSL_USE_GOOGLETEST_HEAD=ON \
+ -DABSL_RUN_TESTS=ON \
+ -DCMAKE_BUILD_TYPE=${compilation_mode} \
+ -DCMAKE_CXX_STANDARD=${std} && \
+ make -j$(nproc) && \
+ ctest -j$(nproc) --output-on-failure"
+ done
+done
diff --git a/ci/macos_xcode_bazel.sh b/ci/macos_xcode_bazel.sh
new file mode 100755
index 0000000..738adf9
--- /dev/null
+++ b/ci/macos_xcode_bazel.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script is invoked on Kokoro to test Abseil on macOS.
+# It is not hermetic and may break when Kokoro is updated.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+# If we are running on Kokoro, check for a versioned Bazel binary.
+KOKORO_GFILE_BAZEL_BIN="bazel-2.0.0-darwin-x86_64"
+if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -f ${KOKORO_GFILE_DIR}/${KOKORO_GFILE_BAZEL_BIN} ]]; then
+ BAZEL_BIN="${KOKORO_GFILE_DIR}/${KOKORO_GFILE_BAZEL_BIN}"
+ chmod +x ${BAZEL_BIN}
+else
+ BAZEL_BIN="bazel"
+fi
+
+# Print the compiler and Bazel versions.
+echo "---------------"
+gcc -v
+echo "---------------"
+${BAZEL_BIN} version
+echo "---------------"
+
+cd ${ABSEIL_ROOT}
+
+if [[ -n "${ALTERNATE_OPTIONS:-}" ]]; then
+ cp ${ALTERNATE_OPTIONS:-} absl/base/options.h || exit 1
+fi
+
+${BAZEL_BIN} test ... \
+ --copt=-Werror \
+ --keep_going \
+ --show_timestamps \
+ --test_env="TZDIR=${ABSEIL_ROOT}/absl/time/internal/cctz/testdata/zoneinfo" \
+ --test_output=errors \
+ --test_tag_filters=-benchmark
diff --git a/ci/macos_xcode_cmake.sh b/ci/macos_xcode_cmake.sh
new file mode 100755
index 0000000..cf78e20
--- /dev/null
+++ b/ci/macos_xcode_cmake.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script is invoked on Kokoro to test Abseil on macOS.
+# It is not hermetic and may break when Kokoro is updated.
+
+set -euox pipefail
+
+if [[ -z ${ABSEIL_ROOT:-} ]]; then
+ ABSEIL_ROOT="$(dirname ${0})/.."
+fi
+ABSEIL_ROOT=$(realpath ${ABSEIL_ROOT})
+
+if [[ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]]; then
+ ABSL_CMAKE_BUILD_TYPES="Debug"
+fi
+
+for compilation_mode in ${ABSL_CMAKE_BUILD_TYPES}; do
+ BUILD_DIR=$(mktemp -d ${compilation_mode}.XXXXXXXX)
+ cd ${BUILD_DIR}
+
+ # TODO(absl-team): Enable -Werror once all warnings are fixed.
+ time cmake ${ABSEIL_ROOT} \
+ -GXcode \
+ -DCMAKE_BUILD_TYPE=${compilation_mode} \
+ -DCMAKE_CXX_STANDARD=11 \
+ -DABSL_USE_GOOGLETEST_HEAD=ON \
+ -DABSL_RUN_TESTS=ON
+ time cmake --build .
+ time ctest -C ${compilation_mode} --output-on-failure
+done
diff --git a/conanfile.py b/conanfile.py
new file mode 100755
index 0000000..926ec5c
--- /dev/null
+++ b/conanfile.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Note: Conan is supported on a best-effort basis. Abseil doesn't use Conan
+# internally, so we won't know if it stops working. We may ask community
+# members to help us debug any problems that arise.
+
+from conans import ConanFile, CMake, tools
+from conans.errors import ConanInvalidConfiguration
+from conans.model.version import Version
+
+
+class AbseilConan(ConanFile):
+ name = "abseil"
+ url = "https://github.com/abseil/abseil-cpp"
+ homepage = url
+ author = "Abseil <abseil-io@googlegroups.com>"
+ description = "Abseil Common Libraries (C++) from Google"
+ license = "Apache-2.0"
+ topics = ("conan", "abseil", "abseil-cpp", "google", "common-libraries")
+ exports = ["LICENSE"]
+ exports_sources = ["CMakeLists.txt", "CMake/*", "absl/*"]
+ generators = "cmake"
+ settings = "os", "arch", "compiler", "build_type"
+
+ def configure(self):
+ if self.settings.os == "Windows" and \
+ self.settings.compiler == "Visual Studio" and \
+ Version(self.settings.compiler.version.value) < "14":
+ raise ConanInvalidConfiguration("Abseil does not support MSVC < 14")
+
+ def build(self):
+ tools.replace_in_file("CMakeLists.txt", "project(absl CXX)", "project(absl CXX)\ninclude(conanbuildinfo.cmake)\nconan_basic_setup()")
+ cmake = CMake(self)
+ cmake.definitions["BUILD_TESTING"] = False
+ cmake.configure()
+ cmake.build()
+
+ def package(self):
+ self.copy("LICENSE", dst="licenses")
+ self.copy("*.h", dst="include", src=".")
+ self.copy("*.inc", dst="include", src=".")
+ self.copy("*.a", dst="lib", src=".", keep_path=False)
+ self.copy("*.lib", dst="lib", src=".", keep_path=False)
+
+ def package_info(self):
+ if self.settings.os == "Linux":
+ self.cpp_info.libs = ["-Wl,--start-group"]
+ self.cpp_info.libs.extend(tools.collect_libs(self))
+ if self.settings.os == "Linux":
+ self.cpp_info.libs.extend(["-Wl,--end-group", "pthread"])
diff --git a/rename_annotations.sh b/rename_annotations.sh
index fa2de4d..32491c7 100755
--- a/rename_annotations.sh
+++ b/rename_annotations.sh
@@ -134,32 +134,3 @@
; do
find absl/ -type f -exec sed -i "s/\b$w\b/absl_$w/g" {} \;
done
-
-for w in \
- THREAD_ANNOTATION_ATTRIBUTE__ \
- GUARDED_BY \
- PT_GUARDED_BY \
- ACQUIRED_AFTER \
- ACQUIRED_BEFORE \
- EXCLUSIVE_LOCKS_REQUIRED \
- SHARED_LOCKS_REQUIRED \
- LOCKS_EXCLUDED \
- LOCK_RETURNED \
- LOCKABLE \
- SCOPED_LOCKABLE \
- EXCLUSIVE_LOCK_FUNCTION \
- SHARED_LOCK_FUNCTION \
- UNLOCK_FUNCTION \
- EXCLUSIVE_TRYLOCK_FUNCTION \
- SHARED_TRYLOCK_FUNCTION \
- ASSERT_EXCLUSIVE_LOCK \
- ASSERT_SHARED_LOCK \
- NO_THREAD_SAFETY_ANALYSIS \
- TS_UNCHECKED \
- TS_FIXME \
- NO_THREAD_SAFETY_ANALYSIS_FIXME \
- GUARDED_BY_FIXME \
- TS_UNCHECKED_READ \
-; do
- find absl/ -type f -exec sed -i "s/\b$w\b/ABSL_$w/g" {} \;
-done