diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/flags')
33 files changed, 1236 insertions, 1216 deletions
diff --git a/third_party/abseil_cpp/absl/flags/BUILD.bazel b/third_party/abseil_cpp/absl/flags/BUILD.bazel index 3681082527..006911fd8e 100644 --- a/third_party/abseil_cpp/absl/flags/BUILD.bazel +++ b/third_party/abseil_cpp/absl/flags/BUILD.bazel @@ -27,28 +27,18 @@ package(default_visibility = ["//visibility:public"]) licenses(["notice"]) # Apache 2.0 cc_library( - name = "flag_internal", - srcs = [ - "internal/flag.cc", - ], + name = "path_util", hdrs = [ - "internal/flag.h", + "internal/path_util.h", ], copts = ABSL_DEFAULT_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = ["//absl/base:__subpackages__"], + visibility = [ + "//absl/flags:__pkg__", + ], deps = [ - ":config", - ":handle", - ":marshalling", - ":registry", - "//absl/base", "//absl/base:config", - "//absl/base:core_headers", - "//absl/memory", - "//absl/meta:type_traits", "//absl/strings", - "//absl/synchronization", ], ) @@ -75,22 +65,6 @@ cc_library( ) cc_library( - name = "path_util", - hdrs = [ - "internal/path_util.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl/flags:__pkg__", - ], - deps = [ - "//absl/base:config", - "//absl/strings", - ], -) - -cc_library( name = "config", srcs = [ "usage_config.cc", @@ -131,21 +105,32 @@ cc_library( ) cc_library( - name = "handle", - srcs = [ - "internal/commandlineflag.cc", - ], + name = "commandlineflag_internal", hdrs = [ "internal/commandlineflag.h", ], copts = ABSL_DEFAULT_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl/flags:__pkg__", + visibility = ["//visibility:private"], + deps = [ + "//absl/base:config", + "//absl/base:fast_type_id", ], +) + +cc_library( + name = "commandlineflag", + srcs = [ + "commandlineflag.cc", + ], + hdrs = [ + "commandlineflag.h", + ], + copts = ABSL_DEFAULT_COPTS, + linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ + ":commandlineflag_internal", "//absl/base:config", - "//absl/base:core_headers", "//absl/base:fast_type_id", "//absl/strings", "//absl/types:optional", @@ -165,37 +150,66 @@ cc_library( visibility = [ "//absl/flags:__pkg__", ], - deps = [":handle"], + deps = [ + ":commandlineflag", + ":commandlineflag_internal", + "//absl/base:config", + "//absl/strings", + ], ) cc_library( - name = "registry", + name = "reflection", srcs = [ - "internal/registry.cc", - "internal/type_erased.cc", + "reflection.cc", ], hdrs = [ "internal/registry.h", - "internal/type_erased.h", + "reflection.h", ], copts = ABSL_DEFAULT_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl/flags:__pkg__", - ], deps = [ + ":commandlineflag", + ":commandlineflag_internal", ":config", - ":handle", ":private_handle_accessor", "//absl/base:config", "//absl/base:core_headers", - "//absl/base:raw_logging_internal", "//absl/strings", "//absl/synchronization", ], ) cc_library( + name = "flag_internal", + srcs = [ + "internal/flag.cc", + ], + hdrs = [ + "internal/flag.h", + ], + copts = ABSL_DEFAULT_COPTS, + linkopts = ABSL_DEFAULT_LINKOPTS, + visibility = ["//absl/base:__subpackages__"], + deps = [ + ":commandlineflag", + ":commandlineflag_internal", + ":config", + ":marshalling", + ":reflection", + "//absl/base", + "//absl/base:config", + "//absl/base:core_headers", + "//absl/memory", + "//absl/meta:type_traits", + "//absl/strings", + "//absl/synchronization", + "//absl/utility", + ], +) + +cc_library( name = "flag", srcs = [ "flag.cc", @@ -209,9 +223,7 @@ cc_library( deps = [ ":config", ":flag_internal", - ":handle", - ":marshalling", - ":registry", + ":reflection", "//absl/base", "//absl/base:config", "//absl/base:core_headers", @@ -233,14 +245,14 @@ cc_library( "//absl/flags:__pkg__", ], deps = [ + ":commandlineflag", ":config", ":flag", ":flag_internal", - ":handle", ":path_util", ":private_handle_accessor", ":program_name", - ":registry", + ":reflection", "//absl/base:config", "//absl/base:core_headers", "//absl/strings", @@ -276,13 +288,14 @@ cc_library( copts = ABSL_DEFAULT_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ + ":commandlineflag", + ":commandlineflag_internal", ":config", ":flag", ":flag_internal", - ":handle", ":private_handle_accessor", ":program_name", - ":registry", + ":reflection", ":usage", ":usage_internal", "//absl/base:config", @@ -299,16 +312,17 @@ cc_test( name = "commandlineflag_test", size = "small", srcs = [ - "internal/commandlineflag_test.cc", + "commandlineflag_test.cc", ], copts = ABSL_TEST_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ + ":commandlineflag", + ":commandlineflag_internal", ":config", ":flag", - ":handle", ":private_handle_accessor", - ":registry", + ":reflection", "//absl/memory", "//absl/strings", "@com_google_googletest//:gtest_main", @@ -342,8 +356,8 @@ cc_test( ":config", ":flag", ":flag_internal", - ":handle", - ":registry", + ":marshalling", + ":reflection", "//absl/base:core_headers", "//absl/base:malloc_internal", "//absl/strings", @@ -363,6 +377,8 @@ cc_binary( visibility = ["//visibility:private"], deps = [ ":flag", + ":marshalling", + "//absl/strings", "//absl/time", "//absl/types:optional", "@com_github_google_benchmark//:benchmark_main", @@ -384,35 +400,35 @@ cc_test( ) cc_test( - name = "path_util_test", + name = "parse_test", size = "small", srcs = [ - "internal/path_util_test.cc", + "parse_test.cc", ], copts = ABSL_TEST_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ - ":path_util", + ":flag", + ":parse", + ":reflection", + "//absl/base:raw_logging_internal", + "//absl/base:scoped_set_env", + "//absl/strings", + "//absl/types:span", "@com_google_googletest//:gtest_main", ], ) cc_test( - name = "parse_test", + name = "path_util_test", size = "small", srcs = [ - "parse_test.cc", + "internal/path_util_test.cc", ], copts = ABSL_TEST_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ - ":flag", - ":parse", - ":registry", - "//absl/base:raw_logging_internal", - "//absl/base:scoped_set_env", - "//absl/strings", - "//absl/types:span", + ":path_util", "@com_google_googletest//:gtest_main", ], ) @@ -433,18 +449,18 @@ cc_test( ) cc_test( - name = "type_erased_test", + name = "reflection_test", size = "small", srcs = [ - "internal/type_erased_test.cc", + "reflection_test.cc", ], copts = ABSL_TEST_COPTS, linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ + ":commandlineflag_internal", ":flag", - ":handle", ":marshalling", - ":registry", + ":reflection", "//absl/memory", "@com_google_googletest//:gtest_main", ], @@ -481,10 +497,9 @@ cc_test( ":parse", ":path_util", ":program_name", - ":registry", + ":reflection", ":usage", ":usage_internal", - "//absl/memory", "//absl/strings", "@com_google_googletest//:gtest", ], diff --git a/third_party/abseil_cpp/absl/flags/CMakeLists.txt b/third_party/abseil_cpp/absl/flags/CMakeLists.txt index e6b17c9b04..ef75db8e9c 100644 --- a/third_party/abseil_cpp/absl/flags/CMakeLists.txt +++ b/third_party/abseil_cpp/absl/flags/CMakeLists.txt @@ -17,24 +17,16 @@ # Internal-only target, do not depend on directly. absl_cc_library( NAME - flags_internal - SRCS - "internal/flag.cc" + flags_path_util HDRS - "internal/flag.h" + "internal/path_util.h" COPTS ${ABSL_DEFAULT_COPTS} LINKOPTS ${ABSL_DEFAULT_LINKOPTS} DEPS - absl::base absl::config - absl::flags_config - absl::flags_handle - absl::flags_marshalling - absl::flags_registry - absl::synchronization - absl::meta + absl::strings PUBLIC ) @@ -59,22 +51,6 @@ absl_cc_library( PUBLIC ) -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - flags_path_util - HDRS - "internal/path_util.h" - COPTS - ${ABSL_DEFAULT_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - DEPS - absl::config - absl::strings - PUBLIC -) - absl_cc_library( NAME flags_config @@ -118,9 +94,7 @@ absl_cc_library( # Internal-only target, do not depend on directly. absl_cc_library( NAME - flags_handle - SRCS - "internal/commandlineflag.cc" + flags_commandlineflag_internal HDRS "internal/commandlineflag.h" COPTS @@ -130,11 +104,25 @@ absl_cc_library( DEPS absl::config absl::fast_type_id - absl::core_headers +) + +absl_cc_library( + NAME + flags_commandlineflag + SRCS + "commandlineflag.cc" + HDRS + "commandlineflag.h" + COPTS + ${ABSL_DEFAULT_COPTS} + LINKOPTS + ${ABSL_DEFAULT_LINKOPTS} + DEPS + absl::config + absl::fast_type_id + absl::flags_commandlineflag_internal absl::optional - absl::raw_logging_internal absl::strings - absl::synchronization ) # Internal-only target, do not depend on directly. @@ -150,34 +138,57 @@ absl_cc_library( LINKOPTS ${ABSL_DEFAULT_LINKOPTS} DEPS - absl::flags_handle + absl::config + absl::flags_commandlineflag + absl::flags_commandlineflag_internal + absl::strings ) -# Internal-only target, do not depend on directly. absl_cc_library( NAME - flags_registry + flags_reflection SRCS - "internal/registry.cc" - "internal/type_erased.cc" + "reflection.cc" HDRS + "reflection.h" "internal/registry.h" - "internal/type_erased.h" COPTS ${ABSL_DEFAULT_COPTS} LINKOPTS ${ABSL_DEFAULT_LINKOPTS} DEPS absl::config - absl::flags_config - absl::flags_handle + absl::flags_commandlineflag absl::flags_private_handle_accessor - absl::core_headers - absl::raw_logging_internal + absl::flags_config absl::strings absl::synchronization ) +# Internal-only target, do not depend on directly. +absl_cc_library( + NAME + flags_internal + SRCS + "internal/flag.cc" + HDRS + "internal/flag.h" + COPTS + ${ABSL_DEFAULT_COPTS} + LINKOPTS + ${ABSL_DEFAULT_LINKOPTS} + DEPS + absl::base + absl::config + absl::flags_commandlineflag_internal + absl::flags_config + absl::flags_marshalling + absl::synchronization + absl::meta + absl::utility + PUBLIC +) + absl_cc_library( NAME flags @@ -192,11 +203,10 @@ absl_cc_library( ${ABSL_DEFAULT_LINKOPTS} DEPS absl::config + absl::flags_commandlineflag absl::flags_config - absl::flags_handle absl::flags_internal - absl::flags_marshalling - absl::flags_registry + absl::flags_reflection absl::base absl::core_headers absl::strings @@ -218,12 +228,12 @@ absl_cc_library( absl::config absl::flags_config absl::flags - absl::flags_handle - absl::flags_private_handle_accessor + absl::flags_commandlineflag absl::flags_internal absl::flags_path_util + absl::flags_private_handle_accessor absl::flags_program_name - absl::flags_registry + absl::flags_reflection absl::strings absl::synchronization ) @@ -264,11 +274,12 @@ absl_cc_library( absl::core_headers absl::flags_config absl::flags - absl::flags_handle - absl::flags_private_handle_accessor + absl::flags_commandlineflag + absl::flags_commandlineflag_internal absl::flags_internal + absl::flags_private_handle_accessor absl::flags_program_name - absl::flags_registry + absl::flags_reflection absl::flags_usage absl::strings absl::synchronization @@ -281,15 +292,16 @@ absl_cc_test( NAME flags_commandlineflag_test SRCS - "internal/commandlineflag_test.cc" + "commandlineflag_test.cc" COPTS ${ABSL_TEST_COPTS} DEPS absl::flags + absl::flags_commandlineflag + absl::flags_commandlineflag_internal absl::flags_config - absl::flags_handle absl::flags_private_handle_accessor - absl::flags_registry + absl::flags_reflection absl::memory absl::strings gtest_main @@ -319,9 +331,9 @@ absl_cc_test( absl::core_headers absl::flags absl::flags_config - absl::flags_handle absl::flags_internal - absl::flags_registry + absl::flags_marshalling + absl::flags_reflection absl::strings absl::time gtest_main @@ -349,7 +361,7 @@ absl_cc_test( DEPS absl::flags absl::flags_parse - absl::flags_registry + absl::flags_reflection absl::raw_logging_internal absl::scoped_set_env absl::span @@ -384,16 +396,15 @@ absl_cc_test( absl_cc_test( NAME - flags_type_erased_test + flags_reflection_test SRCS - "internal/type_erased_test.cc" + "reflection_test.cc" COPTS ${ABSL_TEST_COPTS} DEPS + absl::flags_commandlineflag_internal absl::flags - absl::flags_handle - absl::flags_marshalling - absl::flags_registry + absl::flags_reflection absl::memory absl::strings gtest_main @@ -427,9 +438,8 @@ absl_cc_test( absl::flags_path_util absl::flags_program_name absl::flags_parse - absl::flags_registry + absl::flags_reflection absl::flags_usage - absl::memory absl::strings gtest ) diff --git a/third_party/abseil_cpp/absl/flags/internal/commandlineflag.cc b/third_party/abseil_cpp/absl/flags/commandlineflag.cc index 84112437d9..217b2d8700 100644 --- a/third_party/abseil_cpp/absl/flags/internal/commandlineflag.cc +++ b/third_party/abseil_cpp/absl/flags/commandlineflag.cc @@ -13,21 +13,25 @@ // See the License for the specific language governing permissions and // limitations under the License. +#include "absl/flags/commandlineflag.h" + +#include <string> + +#include "absl/base/config.h" #include "absl/flags/internal/commandlineflag.h" +#include "absl/strings/string_view.h" namespace absl { ABSL_NAMESPACE_BEGIN -namespace flags_internal { - -FlagStateInterface::~FlagStateInterface() {} bool CommandLineFlag::IsRetired() const { return false; } - bool CommandLineFlag::ParseFrom(absl::string_view value, std::string* error) { return ParseFrom(value, flags_internal::SET_FLAGS_VALUE, - flags_internal::kProgrammaticChange, error); + flags_internal::kProgrammaticChange, *error); } +namespace flags_internal { +FlagStateInterface::~FlagStateInterface() {} } // namespace flags_internal ABSL_NAMESPACE_END } // namespace absl diff --git a/third_party/abseil_cpp/absl/flags/commandlineflag.h b/third_party/abseil_cpp/absl/flags/commandlineflag.h new file mode 100644 index 0000000000..7e21d05d8a --- /dev/null +++ b/third_party/abseil_cpp/absl/flags/commandlineflag.h @@ -0,0 +1,196 @@ +// +// Copyright 2020 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. +// +// ----------------------------------------------------------------------------- +// File: commandlineflag.h +// ----------------------------------------------------------------------------- +// +// This header file defines the `CommandLineFlag`, which acts as a type-erased +// handle for accessing metadata about the Abseil Flag in question. +// +// Because an actual Abseil flag is of an unspecified type, you should not +// manipulate or interact directly with objects of that type. Instead, use the +// CommandLineFlag type as an intermediary. +#ifndef ABSL_FLAGS_COMMANDLINEFLAG_H_ +#define ABSL_FLAGS_COMMANDLINEFLAG_H_ + +#include <memory> +#include <string> + +#include "absl/base/config.h" +#include "absl/base/internal/fast_type_id.h" +#include "absl/flags/internal/commandlineflag.h" +#include "absl/strings/string_view.h" +#include "absl/types/optional.h" + +namespace absl { +ABSL_NAMESPACE_BEGIN +namespace flags_internal { +class PrivateHandleAccessor; +} // namespace flags_internal + +// CommandLineFlag +// +// This type acts as a type-erased handle for an instance of an Abseil Flag and +// holds reflection information pertaining to that flag. Use CommandLineFlag to +// access a flag's name, location, help string etc. +// +// To obtain an absl::CommandLineFlag, invoke `absl::FindCommandLineFlag()` +// passing it the flag name string. +// +// Example: +// +// // Obtain reflection handle for a flag named "flagname". +// const absl::CommandLineFlag* my_flag_data = +// absl::FindCommandLineFlag("flagname"); +// +// // Now you can get flag info from that reflection handle. +// std::string flag_location = my_flag_data->Filename(); +// ... +class CommandLineFlag { + public: + constexpr CommandLineFlag() = default; + + // Not copyable/assignable. + CommandLineFlag(const CommandLineFlag&) = delete; + CommandLineFlag& operator=(const CommandLineFlag&) = delete; + + // absl::CommandLineFlag::IsOfType() + // + // Return true iff flag has type T. + template <typename T> + inline bool IsOfType() const { + return TypeId() == base_internal::FastTypeId<T>(); + } + + // absl::CommandLineFlag::TryGet() + // + // Attempts to retrieve the flag value. Returns value on success, + // absl::nullopt otherwise. + template <typename T> + absl::optional<T> TryGet() const { + if (IsRetired() || !IsOfType<T>()) { + return absl::nullopt; + } + + // Implementation notes: + // + // We are wrapping a union around the value of `T` to serve three purposes: + // + // 1. `U.value` has correct size and alignment for a value of type `T` + // 2. The `U.value` constructor is not invoked since U's constructor does + // not do it explicitly. + // 3. The `U.value` destructor is invoked since U's destructor does it + // explicitly. This makes `U` a kind of RAII wrapper around non default + // constructible value of T, which is destructed when we leave the + // scope. We do need to destroy U.value, which is constructed by + // CommandLineFlag::Read even though we left it in a moved-from state + // after std::move. + // + // All of this serves to avoid requiring `T` being default constructible. + union U { + T value; + U() {} + ~U() { value.~T(); } + }; + U u; + + Read(&u.value); + return std::move(u.value); + } + + // absl::CommandLineFlag::Name() + // + // Returns name of this flag. + virtual absl::string_view Name() const = 0; + + // absl::CommandLineFlag::Filename() + // + // Returns name of the file where this flag is defined. + virtual std::string Filename() const = 0; + + // absl::CommandLineFlag::Help() + // + // Returns help message associated with this flag. + virtual std::string Help() const = 0; + + // absl::CommandLineFlag::IsRetired() + // + // Returns true iff this object corresponds to retired flag. + virtual bool IsRetired() const; + + // absl::CommandLineFlag::DefaultValue() + // + // Returns the default value for this flag. + virtual std::string DefaultValue() const = 0; + + // absl::CommandLineFlag::CurrentValue() + // + // Returns the current value for this flag. + virtual std::string CurrentValue() const = 0; + + // absl::CommandLineFlag::ParseFrom() + // + // Sets the value of the flag based on specified string `value`. If the flag + // was successfully set to new value, it returns true. Otherwise, sets `error` + // to indicate the error, leaves the flag unchanged, and returns false. + bool ParseFrom(absl::string_view value, std::string* error); + + protected: + ~CommandLineFlag() = default; + + private: + friend class flags_internal::PrivateHandleAccessor; + + // Sets the value of the flag based on specified string `value`. If the flag + // was successfully set to new value, it returns true. Otherwise, sets `error` + // to indicate the error, leaves the flag unchanged, and returns false. There + // are three ways to set the flag's value: + // * Update the current flag value + // * Update the flag's default value + // * Update the current flag value if it was never set before + // The mode is selected based on `set_mode` parameter. + virtual bool ParseFrom(absl::string_view value, + flags_internal::FlagSettingMode set_mode, + flags_internal::ValueSource source, + std::string& error) = 0; + + // Returns id of the flag's value type. + virtual flags_internal::FlagFastTypeId TypeId() const = 0; + + // Interface to save flag to some persistent state. Returns current flag state + // or nullptr if flag does not support saving and restoring a state. + virtual std::unique_ptr<flags_internal::FlagStateInterface> SaveState() = 0; + + // Copy-construct a new value of the flag's type in a memory referenced by + // the dst based on the current flag's value. + virtual void Read(void* dst) const = 0; + + // To be deleted. Used to return true if flag's current value originated from + // command line. + virtual bool IsSpecifiedOnCommandLine() const = 0; + + // Validates supplied value usign validator or parseflag routine + virtual bool ValidateInputValue(absl::string_view value) const = 0; + + // Checks that flags default value can be converted to string and back to the + // flag's value type. + virtual void CheckDefaultValueParsingRoundtrip() const = 0; +}; + +ABSL_NAMESPACE_END +} // namespace absl + +#endif // ABSL_FLAGS_COMMANDLINEFLAG_H_ diff --git a/third_party/abseil_cpp/absl/flags/internal/commandlineflag_test.cc b/third_party/abseil_cpp/absl/flags/commandlineflag_test.cc index 0b5aea3792..585db4ba78 100644 --- a/third_party/abseil_cpp/absl/flags/internal/commandlineflag_test.cc +++ b/third_party/abseil_cpp/absl/flags/commandlineflag_test.cc @@ -13,15 +13,16 @@ // See the License for the specific language governing permissions and // limitations under the License. -#include "absl/flags/internal/commandlineflag.h" +#include "absl/flags/commandlineflag.h" #include <memory> #include <string> #include "gtest/gtest.h" #include "absl/flags/flag.h" +#include "absl/flags/internal/commandlineflag.h" #include "absl/flags/internal/private_handle_accessor.h" -#include "absl/flags/internal/registry.h" +#include "absl/flags/reflection.h" #include "absl/flags/usage_config.h" #include "absl/memory/memory.h" #include "absl/strings/match.h" @@ -33,6 +34,10 @@ ABSL_FLAG(std::string, string_flag, "dflt", absl::StrCat("string_flag", " help")); ABSL_RETIRED_FLAG(bool, bool_retired_flag, false, "bool_retired_flag help"); +// These are only used to test default values. +ABSL_FLAG(int, int_flag2, 201, ""); +ABSL_FLAG(std::string, string_flag2, "dflt", ""); + namespace { namespace flags = absl::flags_internal; @@ -46,7 +51,7 @@ class CommandLineFlagTest : public testing::Test { absl::SetFlagsUsageConfig(default_config); } - void SetUp() override { flag_saver_ = absl::make_unique<flags::FlagSaver>(); } + void SetUp() override { flag_saver_ = absl::make_unique<absl::FlagSaver>(); } void TearDown() override { flag_saver_.reset(); } private: @@ -59,56 +64,49 @@ class CommandLineFlagTest : public testing::Test { return std::string(fname); } - std::unique_ptr<flags::FlagSaver> flag_saver_; + std::unique_ptr<absl::FlagSaver> flag_saver_; }; TEST_F(CommandLineFlagTest, TestAttributesAccessMethods) { - auto* flag_01 = flags::FindCommandLineFlag("int_flag"); + auto* flag_01 = absl::FindCommandLineFlag("int_flag"); ASSERT_TRUE(flag_01); EXPECT_EQ(flag_01->Name(), "int_flag"); EXPECT_EQ(flag_01->Help(), "int_flag help"); EXPECT_TRUE(!flag_01->IsRetired()); EXPECT_TRUE(flag_01->IsOfType<int>()); - EXPECT_TRUE( - absl::EndsWith(flag_01->Filename(), - "absl/flags/internal/commandlineflag_test.cc")) + EXPECT_TRUE(!flag_01->IsOfType<bool>()); + EXPECT_TRUE(!flag_01->IsOfType<std::string>()); + EXPECT_TRUE(absl::EndsWith(flag_01->Filename(), + "absl/flags/commandlineflag_test.cc")) << flag_01->Filename(); - auto* flag_02 = flags::FindCommandLineFlag("string_flag"); + auto* flag_02 = absl::FindCommandLineFlag("string_flag"); ASSERT_TRUE(flag_02); EXPECT_EQ(flag_02->Name(), "string_flag"); EXPECT_EQ(flag_02->Help(), "string_flag help"); EXPECT_TRUE(!flag_02->IsRetired()); EXPECT_TRUE(flag_02->IsOfType<std::string>()); - EXPECT_TRUE( - absl::EndsWith(flag_02->Filename(), - "absl/flags/internal/commandlineflag_test.cc")) + EXPECT_TRUE(!flag_02->IsOfType<bool>()); + EXPECT_TRUE(!flag_02->IsOfType<int>()); + EXPECT_TRUE(absl::EndsWith(flag_02->Filename(), + "absl/flags/commandlineflag_test.cc")) << flag_02->Filename(); - - auto* flag_03 = flags::FindRetiredFlag("bool_retired_flag"); - - ASSERT_TRUE(flag_03); - EXPECT_EQ(flag_03->Name(), "bool_retired_flag"); - EXPECT_EQ(flag_03->Help(), ""); - EXPECT_TRUE(flag_03->IsRetired()); - EXPECT_TRUE(flag_03->IsOfType<bool>()); - EXPECT_EQ(flag_03->Filename(), "RETIRED"); } // -------------------------------------------------------------------- TEST_F(CommandLineFlagTest, TestValueAccessMethods) { - absl::SetFlag(&FLAGS_int_flag, 301); - auto* flag_01 = flags::FindCommandLineFlag("int_flag"); + absl::SetFlag(&FLAGS_int_flag2, 301); + auto* flag_01 = absl::FindCommandLineFlag("int_flag2"); ASSERT_TRUE(flag_01); EXPECT_EQ(flag_01->CurrentValue(), "301"); EXPECT_EQ(flag_01->DefaultValue(), "201"); - absl::SetFlag(&FLAGS_string_flag, "new_str_value"); - auto* flag_02 = flags::FindCommandLineFlag("string_flag"); + absl::SetFlag(&FLAGS_string_flag2, "new_str_value"); + auto* flag_02 = absl::FindCommandLineFlag("string_flag2"); ASSERT_TRUE(flag_02); EXPECT_EQ(flag_02->CurrentValue(), "new_str_value"); @@ -120,62 +118,62 @@ TEST_F(CommandLineFlagTest, TestValueAccessMethods) { TEST_F(CommandLineFlagTest, TestParseFromCurrentValue) { std::string err; - auto* flag_01 = flags::FindCommandLineFlag("int_flag"); + auto* flag_01 = absl::FindCommandLineFlag("int_flag"); EXPECT_FALSE( flags::PrivateHandleAccessor::IsSpecifiedOnCommandLine(*flag_01)); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "11", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, &err)); + *flag_01, "11", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 11); EXPECT_FALSE( flags::PrivateHandleAccessor::IsSpecifiedOnCommandLine(*flag_01)); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "-123", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, - &err)); + *flag_01, "-123", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, + err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), -123); EXPECT_FALSE( flags::PrivateHandleAccessor::IsSpecifiedOnCommandLine(*flag_01)); EXPECT_TRUE(!flags::PrivateHandleAccessor::ParseFrom( - flag_01, "xyz", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, - &err)); + *flag_01, "xyz", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, + err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), -123); EXPECT_EQ(err, "Illegal value 'xyz' specified for flag 'int_flag'"); EXPECT_FALSE( flags::PrivateHandleAccessor::IsSpecifiedOnCommandLine(*flag_01)); EXPECT_TRUE(!flags::PrivateHandleAccessor::ParseFrom( - flag_01, "A1", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, &err)); + *flag_01, "A1", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), -123); EXPECT_EQ(err, "Illegal value 'A1' specified for flag 'int_flag'"); EXPECT_FALSE( flags::PrivateHandleAccessor::IsSpecifiedOnCommandLine(*flag_01)); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "0x10", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, - &err)); + *flag_01, "0x10", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, + err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 16); EXPECT_FALSE( flags::PrivateHandleAccessor::IsSpecifiedOnCommandLine(*flag_01)); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "011", flags::SET_FLAGS_VALUE, flags::kCommandLine, &err)); + *flag_01, "011", flags::SET_FLAGS_VALUE, flags::kCommandLine, err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 11); EXPECT_TRUE(flags::PrivateHandleAccessor::IsSpecifiedOnCommandLine(*flag_01)); EXPECT_TRUE(!flags::PrivateHandleAccessor::ParseFrom( - flag_01, "", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, &err)); + *flag_01, "", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, err)); EXPECT_EQ(err, "Illegal value '' specified for flag 'int_flag'"); - auto* flag_02 = flags::FindCommandLineFlag("string_flag"); + auto* flag_02 = absl::FindCommandLineFlag("string_flag"); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_02, "xyz", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, - &err)); + *flag_02, "xyz", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, + err)); EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), "xyz"); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_02, "", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, &err)); + *flag_02, "", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, err)); EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), ""); } @@ -184,18 +182,18 @@ TEST_F(CommandLineFlagTest, TestParseFromCurrentValue) { TEST_F(CommandLineFlagTest, TestParseFromDefaultValue) { std::string err; - auto* flag_01 = flags::FindCommandLineFlag("int_flag"); + auto* flag_01 = absl::FindCommandLineFlag("int_flag"); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "111", flags::SET_FLAGS_DEFAULT, flags::kProgrammaticChange, - &err)); + *flag_01, "111", flags::SET_FLAGS_DEFAULT, flags::kProgrammaticChange, + err)); EXPECT_EQ(flag_01->DefaultValue(), "111"); - auto* flag_02 = flags::FindCommandLineFlag("string_flag"); + auto* flag_02 = absl::FindCommandLineFlag("string_flag"); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_02, "abc", flags::SET_FLAGS_DEFAULT, flags::kProgrammaticChange, - &err)); + *flag_02, "abc", flags::SET_FLAGS_DEFAULT, flags::kProgrammaticChange, + err)); EXPECT_EQ(flag_02->DefaultValue(), "abc"); } @@ -204,28 +202,28 @@ TEST_F(CommandLineFlagTest, TestParseFromDefaultValue) { TEST_F(CommandLineFlagTest, TestParseFromIfDefault) { std::string err; - auto* flag_01 = flags::FindCommandLineFlag("int_flag"); + auto* flag_01 = absl::FindCommandLineFlag("int_flag"); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "22", flags::SET_FLAG_IF_DEFAULT, flags::kProgrammaticChange, - &err)) + *flag_01, "22", flags::SET_FLAG_IF_DEFAULT, flags::kProgrammaticChange, + err)) << err; EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 22); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "33", flags::SET_FLAG_IF_DEFAULT, flags::kProgrammaticChange, - &err)); + *flag_01, "33", flags::SET_FLAG_IF_DEFAULT, flags::kProgrammaticChange, + err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 22); // EXPECT_EQ(err, "ERROR: int_flag is already set to 22"); // Reset back to default value EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "201", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, - &err)); + *flag_01, "201", flags::SET_FLAGS_VALUE, flags::kProgrammaticChange, + err)); EXPECT_TRUE(flags::PrivateHandleAccessor::ParseFrom( - flag_01, "33", flags::SET_FLAG_IF_DEFAULT, flags::kProgrammaticChange, - &err)); + *flag_01, "33", flags::SET_FLAG_IF_DEFAULT, flags::kProgrammaticChange, + err)); EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 201); // EXPECT_EQ(err, "ERROR: int_flag is already set to 201"); } diff --git a/third_party/abseil_cpp/absl/flags/declare.h b/third_party/abseil_cpp/absl/flags/declare.h index 0f8cc6a599..b9794d8b85 100644 --- a/third_party/abseil_cpp/absl/flags/declare.h +++ b/third_party/abseil_cpp/absl/flags/declare.h @@ -26,7 +26,6 @@ #define ABSL_FLAGS_DECLARE_H_ #include "absl/base/config.h" -#include "absl/strings/string_view.h" namespace absl { ABSL_NAMESPACE_BEGIN diff --git a/third_party/abseil_cpp/absl/flags/flag.cc b/third_party/abseil_cpp/absl/flags/flag.cc index f7a457bf0c..531df1287a 100644 --- a/third_party/abseil_cpp/absl/flags/flag.cc +++ b/third_party/abseil_cpp/absl/flags/flag.cc @@ -16,8 +16,6 @@ #include "absl/flags/flag.h" #include "absl/base/config.h" -#include "absl/flags/internal/commandlineflag.h" -#include "absl/flags/internal/flag.h" namespace absl { ABSL_NAMESPACE_BEGIN diff --git a/third_party/abseil_cpp/absl/flags/flag.h b/third_party/abseil_cpp/absl/flags/flag.h index ca7d581fce..90dc2894df 100644 --- a/third_party/abseil_cpp/absl/flags/flag.h +++ b/third_party/abseil_cpp/absl/flags/flag.h @@ -33,14 +33,11 @@ #include <type_traits> #include "absl/base/attributes.h" -#include "absl/base/casts.h" #include "absl/base/config.h" +#include "absl/base/optimization.h" #include "absl/flags/config.h" -#include "absl/flags/declare.h" -#include "absl/flags/internal/commandlineflag.h" #include "absl/flags/internal/flag.h" #include "absl/flags/internal/registry.h" -#include "absl/flags/marshalling.h" #include "absl/strings/string_view.h" namespace absl { @@ -111,12 +108,12 @@ class Flag { impl_(nullptr) {} #endif - flags_internal::Flag<T>* GetImpl() const { + flags_internal::Flag<T>& GetImpl() const { if (!inited_.load(std::memory_order_acquire)) { absl::MutexLock l(flags_internal::GetGlobalConstructionGuard()); if (inited_.load(std::memory_order_acquire)) { - return impl_; + return *impl_; } impl_ = new flags_internal::Flag<T>( @@ -128,28 +125,30 @@ class Flag { inited_.store(true, std::memory_order_release); } - return impl_; + return *impl_; } // Public methods of `absl::Flag<T>` are NOT part of the Abseil Flags API. // See https://abseil.io/docs/cpp/guides/flags - bool IsRetired() const { return GetImpl()->IsRetired(); } - absl::string_view Name() const { return GetImpl()->Name(); } - std::string Help() const { return GetImpl()->Help(); } - bool IsModified() const { return GetImpl()->IsModified(); } + bool IsRetired() const { return GetImpl().IsRetired(); } + absl::string_view Name() const { return GetImpl().Name(); } + std::string Help() const { return GetImpl().Help(); } + bool IsModified() const { return GetImpl().IsModified(); } bool IsSpecifiedOnCommandLine() const { - return GetImpl()->IsSpecifiedOnCommandLine(); + return GetImpl().IsSpecifiedOnCommandLine(); } - std::string Filename() const { return GetImpl()->Filename(); } - std::string DefaultValue() const { return GetImpl()->DefaultValue(); } - std::string CurrentValue() const { return GetImpl()->CurrentValue(); } + std::string Filename() const { return GetImpl().Filename(); } + std::string DefaultValue() const { return GetImpl().DefaultValue(); } + std::string CurrentValue() const { return GetImpl().CurrentValue(); } template <typename U> inline bool IsOfType() const { - return GetImpl()->template IsOfType<U>(); + return GetImpl().template IsOfType<U>(); } - T Get() const { return GetImpl()->Get(); } - void Set(const T& v) { GetImpl()->Set(v); } - void InvokeCallback() { GetImpl()->InvokeCallback(); } + T Get() const { return GetImpl().Get(); } + void Set(const T& v) { GetImpl().Set(v); } + void InvokeCallback() { GetImpl().InvokeCallback(); } + + const CommandLineFlag& Reflect() const { return GetImpl().Reflect(); } // The data members are logically private, but they need to be public for // this to be an aggregate type. @@ -205,6 +204,21 @@ void SetFlag(absl::Flag<T>* flag, const V& v) { flag->Set(value); } +// GetFlagReflectionHandle() +// +// Returns the reflection handle corresponding to specified Abseil Flag +// instance. Use this handle to access flag's reflection information, like name, +// location, default value etc. +// +// Example: +// +// std::string = absl::GetFlagReflectionHandle(FLAGS_count).DefaultValue(); + +template <typename T> +const CommandLineFlag& GetFlagReflectionHandle(const absl::Flag<T>& f) { + return f.Reflect(); +} + ABSL_NAMESPACE_END } // namespace absl @@ -265,27 +279,29 @@ ABSL_NAMESPACE_END // ----------------------------------------------------------------------------- // ABSL_FLAG_IMPL macro definition conditional on ABSL_FLAGS_STRIP_NAMES +#if !defined(_MSC_VER) || defined(__clang__) +#define ABSL_FLAG_IMPL_FLAG_PTR(flag) flag +#define ABSL_FLAG_IMPL_HELP_ARG(name) \ + absl::flags_internal::HelpArg<AbslFlagHelpGenFor##name>( \ + FLAGS_help_storage_##name) +#define ABSL_FLAG_IMPL_DEFAULT_ARG(Type, name) \ + absl::flags_internal::DefaultArg<Type, AbslFlagDefaultGenFor##name>(0) +#else +#define ABSL_FLAG_IMPL_FLAG_PTR(flag) flag.GetImpl() +#define ABSL_FLAG_IMPL_HELP_ARG(name) &AbslFlagHelpGenFor##name::NonConst +#define ABSL_FLAG_IMPL_DEFAULT_ARG(Type, name) &AbslFlagDefaultGenFor##name::Gen +#endif #if ABSL_FLAGS_STRIP_NAMES #define ABSL_FLAG_IMPL_FLAGNAME(txt) "" #define ABSL_FLAG_IMPL_FILENAME() "" -#if !defined(_MSC_VER) || defined(__clang__) #define ABSL_FLAG_IMPL_REGISTRAR(T, flag) \ - absl::flags_internal::FlagRegistrar<T, false>(&flag) -#else -#define ABSL_FLAG_IMPL_REGISTRAR(T, flag) \ - absl::flags_internal::FlagRegistrar<T, false>(flag.GetImpl()) -#endif + absl::flags_internal::FlagRegistrar<T, false>(ABSL_FLAG_IMPL_FLAG_PTR(flag)) #else #define ABSL_FLAG_IMPL_FLAGNAME(txt) txt #define ABSL_FLAG_IMPL_FILENAME() __FILE__ -#if !defined(_MSC_VER) || defined(__clang__) #define ABSL_FLAG_IMPL_REGISTRAR(T, flag) \ - absl::flags_internal::FlagRegistrar<T, true>(&flag) -#else -#define ABSL_FLAG_IMPL_REGISTRAR(T, flag) \ - absl::flags_internal::FlagRegistrar<T, true>(flag.GetImpl()) -#endif + absl::flags_internal::FlagRegistrar<T, true>(ABSL_FLAG_IMPL_FLAG_PTR(flag)) #endif // ABSL_FLAG_IMPL macro definition conditional on ABSL_FLAGS_STRIP_HELP @@ -301,15 +317,24 @@ ABSL_NAMESPACE_END // between the two via the call to HelpArg in absl::Flag instantiation below. // If help message expression is constexpr evaluable compiler will optimize // away this whole struct. -#define ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, txt) \ - struct AbslFlagHelpGenFor##name { \ - template <typename T = void> \ - static constexpr const char* Const() { \ - return absl::flags_internal::HelpConstexprWrap( \ - ABSL_FLAG_IMPL_FLAGHELP(txt)); \ - } \ - static std::string NonConst() { return ABSL_FLAG_IMPL_FLAGHELP(txt); } \ - } +// TODO(rogeeff): place these generated structs into local namespace and apply +// ABSL_INTERNAL_UNIQUE_SHORT_NAME. +// TODO(rogeeff): Apply __attribute__((nodebug)) to FLAGS_help_storage_##name +#define ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, txt) \ + struct AbslFlagHelpGenFor##name { \ + /* The expression is run in the caller as part of the */ \ + /* default value argument. That keeps temporaries alive */ \ + /* long enough for NonConst to work correctly. */ \ + static constexpr absl::string_view Value( \ + absl::string_view v = ABSL_FLAG_IMPL_FLAGHELP(txt)) { \ + return v; \ + } \ + static std::string NonConst() { return std::string(Value()); } \ + }; \ + constexpr auto FLAGS_help_storage_##name ABSL_INTERNAL_UNIQUE_SMALL_NAME() \ + ABSL_ATTRIBUTE_SECTION_VARIABLE(flags_help_cold) = \ + absl::flags_internal::HelpStringAsArray<AbslFlagHelpGenFor##name>( \ + 0); #define ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value) \ struct AbslFlagDefaultGenFor##name { \ @@ -317,40 +342,23 @@ ABSL_NAMESPACE_END static void Gen(void* p) { \ new (p) Type(AbslFlagDefaultGenFor##name{}.value); \ } \ - } + }; // ABSL_FLAG_IMPL // // Note: Name of registrar object is not arbitrary. It is used to "grab" // global name for FLAGS_no<flag_name> symbol, thus preventing the possibility // of defining two flags with names foo and nofoo. -#if !defined(_MSC_VER) || defined(__clang__) - -#define ABSL_FLAG_IMPL(Type, name, default_value, help) \ - namespace absl /* block flags in namespaces */ {} \ - ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value); \ - ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help); \ - ABSL_CONST_INIT absl::Flag<Type> FLAGS_##name{ \ - ABSL_FLAG_IMPL_FLAGNAME(#name), ABSL_FLAG_IMPL_FILENAME(), \ - absl::flags_internal::HelpArg<AbslFlagHelpGenFor##name>(0), \ - absl::flags_internal::DefaultArg<Type, AbslFlagDefaultGenFor##name>(0)}; \ - extern absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name; \ - absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name = \ +#define ABSL_FLAG_IMPL(Type, name, default_value, help) \ + namespace absl /* block flags in namespaces */ {} \ + ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value) \ + ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help) \ + ABSL_CONST_INIT absl::Flag<Type> FLAGS_##name{ \ + ABSL_FLAG_IMPL_FLAGNAME(#name), ABSL_FLAG_IMPL_FILENAME(), \ + ABSL_FLAG_IMPL_HELP_ARG(name), ABSL_FLAG_IMPL_DEFAULT_ARG(Type, 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. -#define ABSL_FLAG_IMPL(Type, name, default_value, help) \ - namespace absl /* block flags in namespaces */ {} \ - ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value); \ - ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help); \ - ABSL_CONST_INIT absl::Flag<Type> FLAGS_##name{ \ - ABSL_FLAG_IMPL_FLAGNAME(#name), ABSL_FLAG_IMPL_FILENAME(), \ - &AbslFlagHelpGenFor##name::NonConst, &AbslFlagDefaultGenFor##name::Gen}; \ - 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/third_party/abseil_cpp/absl/flags/flag_benchmark.cc b/third_party/abseil_cpp/absl/flags/flag_benchmark.cc index ff95bb5d7b..7b52c9bc9f 100644 --- a/third_party/abseil_cpp/absl/flags/flag_benchmark.cc +++ b/third_party/abseil_cpp/absl/flags/flag_benchmark.cc @@ -13,7 +13,14 @@ // See the License for the specific language governing permissions and // limitations under the License. +#include <stdint.h> + +#include <string> +#include <vector> + #include "absl/flags/flag.h" +#include "absl/flags/marshalling.h" +#include "absl/strings/string_view.h" #include "absl/time/time.h" #include "absl/types/optional.h" #include "benchmark/benchmark.h" diff --git a/third_party/abseil_cpp/absl/flags/flag_test.cc b/third_party/abseil_cpp/absl/flags/flag_test.cc index 416a31e523..2eb2ba71d3 100644 --- a/third_party/abseil_cpp/absl/flags/flag_test.cc +++ b/third_party/abseil_cpp/absl/flags/flag_test.cc @@ -15,9 +15,11 @@ #include "absl/flags/flag.h" +#include <stddef.h> #include <stdint.h> #include <cmath> +#include <new> #include <string> #include <thread> // NOLINT #include <vector> @@ -26,9 +28,9 @@ #include "absl/base/attributes.h" #include "absl/flags/config.h" #include "absl/flags/declare.h" -#include "absl/flags/internal/commandlineflag.h" #include "absl/flags/internal/flag.h" -#include "absl/flags/internal/registry.h" +#include "absl/flags/marshalling.h" +#include "absl/flags/reflection.h" #include "absl/flags/usage_config.h" #include "absl/strings/match.h" #include "absl/strings/numbers.h" @@ -45,6 +47,9 @@ namespace { namespace flags = absl::flags_internal; std::string TestHelpMsg() { return "dynamic help"; } +#if defined(_MSC_VER) && !defined(__clang__) +std::string TestLiteralHelpMsg() { return "literal help"; } +#endif template <typename T> void TestMakeDflt(void* dst) { new (dst) T{}; @@ -76,7 +81,7 @@ class FlagTest : public testing::Test { #endif return std::string(fname); } - flags::FlagSaver flag_saver_; + absl::FlagSaver flag_saver_; }; struct S1 { @@ -128,15 +133,29 @@ constexpr flags::FlagHelpArg help_arg{flags::FlagHelpMsg("literal help"), using String = std::string; -#define DEFINE_CONSTRUCTED_FLAG(T, dflt, dflt_kind) \ - constexpr flags::FlagDefaultArg f1default##T{ \ - flags::FlagDefaultSrc{dflt}, flags::FlagDefaultKind::dflt_kind}; \ - constexpr flags::Flag<T> f1##T("f1", "file", help_arg, f1default##T); \ - ABSL_CONST_INIT flags::Flag<T> f2##T( \ - "f2", "file", \ - {flags::FlagHelpMsg(&TestHelpMsg), flags::FlagHelpKind::kGenFunc}, \ - flags::FlagDefaultArg{flags::FlagDefaultSrc(&TestMakeDflt<T>), \ - flags::FlagDefaultKind::kGenFunc}) +#if !defined(_MSC_VER) || defined(__clang__) +#define DEFINE_CONSTRUCTED_FLAG(T, dflt, dflt_kind) \ + constexpr flags::FlagDefaultArg f1default##T{ \ + flags::FlagDefaultSrc{dflt}, flags::FlagDefaultKind::dflt_kind}; \ + constexpr absl::Flag<T> f1##T{"f1", "file", help_arg, f1default##T}; \ + ABSL_CONST_INIT absl::Flag<T> f2##T { \ + "f2", "file", \ + {flags::FlagHelpMsg(&TestHelpMsg), flags::FlagHelpKind::kGenFunc}, \ + flags::FlagDefaultArg { \ + flags::FlagDefaultSrc(&TestMakeDflt<T>), \ + flags::FlagDefaultKind::kGenFunc \ + } \ + } +#else +#define DEFINE_CONSTRUCTED_FLAG(T, dflt, dflt_kind) \ + constexpr flags::FlagDefaultArg f1default##T{ \ + flags::FlagDefaultSrc{dflt}, flags::FlagDefaultKind::dflt_kind}; \ + constexpr absl::Flag<T> f1##T{"f1", "file", &TestLiteralHelpMsg, \ + &TestMakeDflt<T>}; \ + ABSL_CONST_INIT absl::Flag<T> f2##T { \ + "f2", "file", &TestHelpMsg, &TestMakeDflt<T> \ + } +#endif DEFINE_CONSTRUCTED_FLAG(bool, true, kOneWord); DEFINE_CONSTRUCTED_FLAG(int16_t, 1, kOneWord); @@ -151,21 +170,22 @@ DEFINE_CONSTRUCTED_FLAG(String, &TestMakeDflt<String>, kGenFunc); DEFINE_CONSTRUCTED_FLAG(UDT, &TestMakeDflt<UDT>, kGenFunc); template <typename T> -bool TestConstructionFor(const flags::Flag<T>& f1, flags::Flag<T>* f2) { - EXPECT_EQ(f1.Name(), "f1"); - EXPECT_EQ(f1.Help(), "literal help"); - EXPECT_EQ(f1.Filename(), "file"); +bool TestConstructionFor(const absl::Flag<T>& f1, absl::Flag<T>& f2) { + EXPECT_EQ(absl::GetFlagReflectionHandle(f1).Name(), "f1"); + EXPECT_EQ(absl::GetFlagReflectionHandle(f1).Help(), "literal help"); + EXPECT_EQ(absl::GetFlagReflectionHandle(f1).Filename(), "file"); - flags::FlagRegistrar<T, false>(f2).OnUpdate(TestCallback); + flags::FlagRegistrar<T, false>(ABSL_FLAG_IMPL_FLAG_PTR(f2)) + .OnUpdate(TestCallback); - EXPECT_EQ(f2->Name(), "f2"); - EXPECT_EQ(f2->Help(), "dynamic help"); - EXPECT_EQ(f2->Filename(), "file"); + EXPECT_EQ(absl::GetFlagReflectionHandle(f2).Name(), "f2"); + EXPECT_EQ(absl::GetFlagReflectionHandle(f2).Help(), "dynamic help"); + EXPECT_EQ(absl::GetFlagReflectionHandle(f2).Filename(), "file"); return true; } -#define TEST_CONSTRUCTED_FLAG(T) TestConstructionFor(f1##T, &f2##T); +#define TEST_CONSTRUCTED_FLAG(T) TestConstructionFor(f1##T, f2##T); TEST_F(FlagTest, TestConstruction) { TEST_CONSTRUCTED_FLAG(bool); @@ -204,18 +224,30 @@ namespace { TEST_F(FlagTest, TestFlagDeclaration) { // test that we can access flag objects. - EXPECT_EQ(FLAGS_test_flag_01.Name(), "test_flag_01"); - EXPECT_EQ(FLAGS_test_flag_02.Name(), "test_flag_02"); - EXPECT_EQ(FLAGS_test_flag_03.Name(), "test_flag_03"); - EXPECT_EQ(FLAGS_test_flag_04.Name(), "test_flag_04"); - EXPECT_EQ(FLAGS_test_flag_05.Name(), "test_flag_05"); - EXPECT_EQ(FLAGS_test_flag_06.Name(), "test_flag_06"); - EXPECT_EQ(FLAGS_test_flag_07.Name(), "test_flag_07"); - EXPECT_EQ(FLAGS_test_flag_08.Name(), "test_flag_08"); - 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"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_01).Name(), + "test_flag_01"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_02).Name(), + "test_flag_02"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_03).Name(), + "test_flag_03"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_04).Name(), + "test_flag_04"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_05).Name(), + "test_flag_05"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_06).Name(), + "test_flag_06"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_07).Name(), + "test_flag_07"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_08).Name(), + "test_flag_08"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_09).Name(), + "test_flag_09"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_10).Name(), + "test_flag_10"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_11).Name(), + "test_flag_11"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_12).Name(), + "test_flag_12"); } #endif // !ABSL_FLAGS_STRIP_NAMES @@ -242,96 +274,168 @@ namespace { TEST_F(FlagTest, TestFlagDefinition) { absl::string_view expected_file_name = "absl/flags/flag_test.cc"; - EXPECT_EQ(FLAGS_test_flag_01.Name(), "test_flag_01"); - EXPECT_EQ(FLAGS_test_flag_01.Help(), "test flag 01"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_01.Filename(), expected_file_name)) - << FLAGS_test_flag_01.Filename(); - - EXPECT_EQ(FLAGS_test_flag_02.Name(), "test_flag_02"); - EXPECT_EQ(FLAGS_test_flag_02.Help(), "test flag 02"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_02.Filename(), expected_file_name)) - << FLAGS_test_flag_02.Filename(); - - EXPECT_EQ(FLAGS_test_flag_03.Name(), "test_flag_03"); - EXPECT_EQ(FLAGS_test_flag_03.Help(), "test flag 03"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_03.Filename(), expected_file_name)) - << FLAGS_test_flag_03.Filename(); - - EXPECT_EQ(FLAGS_test_flag_04.Name(), "test_flag_04"); - EXPECT_EQ(FLAGS_test_flag_04.Help(), "test flag 04"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_04.Filename(), expected_file_name)) - << FLAGS_test_flag_04.Filename(); - - EXPECT_EQ(FLAGS_test_flag_05.Name(), "test_flag_05"); - EXPECT_EQ(FLAGS_test_flag_05.Help(), "test flag 05"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_05.Filename(), expected_file_name)) - << FLAGS_test_flag_05.Filename(); - - EXPECT_EQ(FLAGS_test_flag_06.Name(), "test_flag_06"); - EXPECT_EQ(FLAGS_test_flag_06.Help(), "test flag 06"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_06.Filename(), expected_file_name)) - << FLAGS_test_flag_06.Filename(); - - EXPECT_EQ(FLAGS_test_flag_07.Name(), "test_flag_07"); - EXPECT_EQ(FLAGS_test_flag_07.Help(), "test flag 07"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_07.Filename(), expected_file_name)) - << FLAGS_test_flag_07.Filename(); - - EXPECT_EQ(FLAGS_test_flag_08.Name(), "test_flag_08"); - EXPECT_EQ(FLAGS_test_flag_08.Help(), "test flag 08"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_08.Filename(), expected_file_name)) - << FLAGS_test_flag_08.Filename(); - - EXPECT_EQ(FLAGS_test_flag_09.Name(), "test_flag_09"); - EXPECT_EQ(FLAGS_test_flag_09.Help(), "test flag 09"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_09.Filename(), expected_file_name)) - << FLAGS_test_flag_09.Filename(); - - EXPECT_EQ(FLAGS_test_flag_10.Name(), "test_flag_10"); - EXPECT_EQ(FLAGS_test_flag_10.Help(), "test flag 10"); - EXPECT_TRUE(absl::EndsWith(FLAGS_test_flag_10.Filename(), expected_file_name)) - << FLAGS_test_flag_10.Filename(); - - EXPECT_EQ(FLAGS_test_flag_11.Name(), "test_flag_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(); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_01).Name(), + "test_flag_01"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_01).Help(), + "test flag 01"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_01).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_01).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_02).Name(), + "test_flag_02"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_02).Help(), + "test flag 02"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_02).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_02).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_03).Name(), + "test_flag_03"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_03).Help(), + "test flag 03"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_03).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_03).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_04).Name(), + "test_flag_04"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_04).Help(), + "test flag 04"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_04).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_04).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_05).Name(), + "test_flag_05"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_05).Help(), + "test flag 05"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_05).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_05).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_06).Name(), + "test_flag_06"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_06).Help(), + "test flag 06"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_06).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_06).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_07).Name(), + "test_flag_07"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_07).Help(), + "test flag 07"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_07).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_07).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_08).Name(), + "test_flag_08"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_08).Help(), + "test flag 08"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_08).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_08).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_09).Name(), + "test_flag_09"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_09).Help(), + "test flag 09"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_09).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_09).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_10).Name(), + "test_flag_10"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_10).Help(), + "test flag 10"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_10).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_10).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_11).Name(), + "test_flag_11"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_11).Help(), + "test flag 11"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_11).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_11).Filename(); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_12).Name(), + "test_flag_12"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_12).Help(), + "test flag 12"); + EXPECT_TRUE(absl::EndsWith( + absl::GetFlagReflectionHandle(FLAGS_test_flag_12).Filename(), + expected_file_name)) + << absl::GetFlagReflectionHandle(FLAGS_test_flag_12).Filename(); } #endif // !ABSL_FLAGS_STRIP_NAMES // -------------------------------------------------------------------- TEST_F(FlagTest, TestDefault) { - EXPECT_EQ(FLAGS_test_flag_01.DefaultValue(), "true"); - EXPECT_EQ(FLAGS_test_flag_02.DefaultValue(), "1234"); - EXPECT_EQ(FLAGS_test_flag_03.DefaultValue(), "-34"); - EXPECT_EQ(FLAGS_test_flag_04.DefaultValue(), "189"); - EXPECT_EQ(FLAGS_test_flag_05.DefaultValue(), "10765"); - EXPECT_EQ(FLAGS_test_flag_06.DefaultValue(), "40000"); - EXPECT_EQ(FLAGS_test_flag_07.DefaultValue(), "-1234567"); - EXPECT_EQ(FLAGS_test_flag_08.DefaultValue(), "9876543"); - 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::GetFlagReflectionHandle(FLAGS_test_flag_01).DefaultValue(), + "true"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_02).DefaultValue(), + "1234"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_03).DefaultValue(), + "-34"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_04).DefaultValue(), + "189"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_05).DefaultValue(), + "10765"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_06).DefaultValue(), + "40000"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_07).DefaultValue(), + "-1234567"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_08).DefaultValue(), + "9876543"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_09).DefaultValue(), + "-9.876e-50"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_10).DefaultValue(), + "1.234e+12"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_11).DefaultValue(), + ""); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_12).DefaultValue(), + "10m"); + + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_01).CurrentValue(), + "true"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_02).CurrentValue(), + "1234"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_03).CurrentValue(), + "-34"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_04).CurrentValue(), + "189"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_05).CurrentValue(), + "10765"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_06).CurrentValue(), + "40000"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_07).CurrentValue(), + "-1234567"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_08).CurrentValue(), + "9876543"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_09).CurrentValue(), + "-9.876e-50"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_10).CurrentValue(), + "1.234e+12"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_11).CurrentValue(), + ""); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_12).CurrentValue(), + "10m"); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_01), true); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_02), 1234); @@ -386,12 +490,18 @@ ABSL_FLAG(NonTriviallyCopyableAggregate, test_flag_eb_06, {}, ""); namespace { TEST_F(FlagTest, TestEmptyBracesDefault) { - EXPECT_EQ(FLAGS_test_flag_eb_01.DefaultValue(), "false"); - EXPECT_EQ(FLAGS_test_flag_eb_02.DefaultValue(), "0"); - EXPECT_EQ(FLAGS_test_flag_eb_03.DefaultValue(), "0"); - EXPECT_EQ(FLAGS_test_flag_eb_04.DefaultValue(), "0"); - EXPECT_EQ(FLAGS_test_flag_eb_05.DefaultValue(), ""); - EXPECT_EQ(FLAGS_test_flag_eb_06.DefaultValue(), "0"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_eb_01).DefaultValue(), + "false"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_eb_02).DefaultValue(), + "0"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_eb_03).DefaultValue(), + "0"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_eb_04).DefaultValue(), + "0"); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_eb_05).DefaultValue(), + ""); + EXPECT_EQ(absl::GetFlagReflectionHandle(FLAGS_test_flag_eb_06).DefaultValue(), + "0"); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_eb_01), false); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_eb_02), 0); @@ -445,29 +555,29 @@ TEST_F(FlagTest, TestGetSet) { // -------------------------------------------------------------------- TEST_F(FlagTest, TestGetViaReflection) { - auto* handle = flags::FindCommandLineFlag("test_flag_01"); + auto* handle = absl::FindCommandLineFlag("test_flag_01"); EXPECT_EQ(*handle->TryGet<bool>(), true); - handle = flags::FindCommandLineFlag("test_flag_02"); + handle = absl::FindCommandLineFlag("test_flag_02"); EXPECT_EQ(*handle->TryGet<int>(), 1234); - handle = flags::FindCommandLineFlag("test_flag_03"); + handle = absl::FindCommandLineFlag("test_flag_03"); EXPECT_EQ(*handle->TryGet<int16_t>(), -34); - handle = flags::FindCommandLineFlag("test_flag_04"); + handle = absl::FindCommandLineFlag("test_flag_04"); EXPECT_EQ(*handle->TryGet<uint16_t>(), 189); - handle = flags::FindCommandLineFlag("test_flag_05"); + handle = absl::FindCommandLineFlag("test_flag_05"); EXPECT_EQ(*handle->TryGet<int32_t>(), 10765); - handle = flags::FindCommandLineFlag("test_flag_06"); + handle = absl::FindCommandLineFlag("test_flag_06"); EXPECT_EQ(*handle->TryGet<uint32_t>(), 40000); - handle = flags::FindCommandLineFlag("test_flag_07"); + handle = absl::FindCommandLineFlag("test_flag_07"); EXPECT_EQ(*handle->TryGet<int64_t>(), -1234567); - handle = flags::FindCommandLineFlag("test_flag_08"); + handle = absl::FindCommandLineFlag("test_flag_08"); EXPECT_EQ(*handle->TryGet<uint64_t>(), 9876543); - handle = flags::FindCommandLineFlag("test_flag_09"); + handle = absl::FindCommandLineFlag("test_flag_09"); EXPECT_NEAR(*handle->TryGet<double>(), -9.876e-50, 1e-55); - handle = flags::FindCommandLineFlag("test_flag_10"); + handle = absl::FindCommandLineFlag("test_flag_10"); EXPECT_NEAR(*handle->TryGet<float>(), 1.234e12f, 1e5f); - handle = flags::FindCommandLineFlag("test_flag_11"); + handle = absl::FindCommandLineFlag("test_flag_11"); EXPECT_EQ(*handle->TryGet<std::string>(), ""); - handle = flags::FindCommandLineFlag("test_flag_12"); + handle = absl::FindCommandLineFlag("test_flag_12"); EXPECT_EQ(*handle->TryGet<absl::Duration>(), absl::Minutes(10)); } @@ -501,8 +611,9 @@ namespace { #if !ABSL_FLAGS_STRIP_HELP TEST_F(FlagTest, TestNonConstexprHelp) { - EXPECT_EQ(FLAGS_test_flag_with_non_const_help.Help(), - "test flag non const help"); + EXPECT_EQ( + absl::GetFlagReflectionHandle(FLAGS_test_flag_with_non_const_help).Help(), + "test flag non const help"); } #endif //! ABSL_FLAGS_STRIP_HELP @@ -704,14 +815,15 @@ ABSL_RETIRED_FLAG(std::string, old_str_flag, "", absl::StrCat("old ", "descr")); namespace { TEST_F(FlagTest, TestRetiredFlagRegistration) { - bool is_bool = false; - EXPECT_TRUE(flags::IsRetiredFlag("old_bool_flag", &is_bool)); - EXPECT_TRUE(is_bool); - EXPECT_TRUE(flags::IsRetiredFlag("old_int_flag", &is_bool)); - EXPECT_FALSE(is_bool); - EXPECT_TRUE(flags::IsRetiredFlag("old_str_flag", &is_bool)); - EXPECT_FALSE(is_bool); - EXPECT_FALSE(flags::IsRetiredFlag("some_other_flag", &is_bool)); + auto* handle = absl::FindCommandLineFlag("old_bool_flag"); + EXPECT_TRUE(handle->IsOfType<bool>()); + EXPECT_TRUE(handle->IsRetired()); + handle = absl::FindCommandLineFlag("old_int_flag"); + EXPECT_TRUE(handle->IsOfType<int>()); + EXPECT_TRUE(handle->IsRetired()); + handle = absl::FindCommandLineFlag("old_str_flag"); + EXPECT_TRUE(handle->IsOfType<std::string>()); + EXPECT_TRUE(handle->IsRetired()); } } // namespace diff --git a/third_party/abseil_cpp/absl/flags/internal/commandlineflag.h b/third_party/abseil_cpp/absl/flags/internal/commandlineflag.h index fa050209b0..cb46fe2e97 100644 --- a/third_party/abseil_cpp/absl/flags/internal/commandlineflag.h +++ b/third_party/abseil_cpp/absl/flags/internal/commandlineflag.h @@ -16,14 +16,8 @@ #ifndef ABSL_FLAGS_INTERNAL_COMMANDLINEFLAG_H_ #define ABSL_FLAGS_INTERNAL_COMMANDLINEFLAG_H_ -#include <memory> -#include <string> - #include "absl/base/config.h" #include "absl/base/internal/fast_type_id.h" -#include "absl/base/macros.h" -#include "absl/strings/string_view.h" -#include "absl/types/optional.h" namespace absl { ABSL_NAMESPACE_BEGIN @@ -34,7 +28,7 @@ namespace flags_internal { // cases this id is enough to uniquely identify the flag's value type. In a few // cases we'll have to resort to using actual RTTI implementation if it is // available. -using FlagFastTypeId = base_internal::FastTypeIdType; +using FlagFastTypeId = absl::base_internal::FastTypeIdType; // Options that control SetCommandLineOptionWithMode. enum FlagSettingMode { @@ -67,117 +61,6 @@ class FlagStateInterface { virtual void Restore() const = 0; }; -// Holds all information for a flag. -class CommandLineFlag { - public: - constexpr CommandLineFlag() = default; - - // Not copyable/assignable. - CommandLineFlag(const CommandLineFlag&) = delete; - CommandLineFlag& operator=(const CommandLineFlag&) = delete; - - // Non-polymorphic access methods. - - // Return true iff flag has type T. - template <typename T> - inline bool IsOfType() const { - return TypeId() == base_internal::FastTypeId<T>(); - } - - // Attempts to retrieve the flag value. Returns value on success, - // absl::nullopt otherwise. - template <typename T> - absl::optional<T> TryGet() const { - if (IsRetired() || !IsOfType<T>()) { - return absl::nullopt; - } - - // Implementation notes: - // - // We are wrapping a union around the value of `T` to serve three purposes: - // - // 1. `U.value` has correct size and alignment for a value of type `T` - // 2. The `U.value` constructor is not invoked since U's constructor does - // not do it explicitly. - // 3. The `U.value` destructor is invoked since U's destructor does it - // explicitly. This makes `U` a kind of RAII wrapper around non default - // constructible value of T, which is destructed when we leave the - // scope. We do need to destroy U.value, which is constructed by - // CommandLineFlag::Read even though we left it in a moved-from state - // after std::move. - // - // All of this serves to avoid requiring `T` being default constructible. - union U { - T value; - U() {} - ~U() { value.~T(); } - }; - U u; - - Read(&u.value); - return std::move(u.value); - } - - // Polymorphic access methods - - // Returns name of this flag. - virtual absl::string_view Name() const = 0; - // Returns name of the file where this flag is defined. - virtual std::string Filename() const = 0; - // Returns help message associated with this flag. - virtual std::string Help() const = 0; - // Returns true iff this object corresponds to retired flag. - virtual bool IsRetired() const; - virtual std::string DefaultValue() const = 0; - virtual std::string CurrentValue() const = 0; - - // Sets the value of the flag based on specified string `value`. If the flag - // was successfully set to new value, it returns true. Otherwise, sets `error` - // to indicate the error, leaves the flag unchanged, and returns false. - bool ParseFrom(absl::string_view value, std::string* error); - - protected: - ~CommandLineFlag() = default; - - private: - friend class PrivateHandleAccessor; - - // Sets the value of the flag based on specified string `value`. If the flag - // was successfully set to new value, it returns true. Otherwise, sets `error` - // to indicate the error, leaves the flag unchanged, and returns false. There - // are three ways to set the flag's value: - // * Update the current flag value - // * Update the flag's default value - // * Update the current flag value if it was never set before - // The mode is selected based on `set_mode` parameter. - virtual bool ParseFrom(absl::string_view value, - flags_internal::FlagSettingMode set_mode, - flags_internal::ValueSource source, - std::string* error) = 0; - - // Returns id of the flag's value type. - virtual FlagFastTypeId TypeId() const = 0; - - // Interface to save flag to some persistent state. Returns current flag state - // or nullptr if flag does not support saving and restoring a state. - virtual std::unique_ptr<FlagStateInterface> SaveState() = 0; - - // Copy-construct a new value of the flag's type in a memory referenced by - // the dst based on the current flag's value. - virtual void Read(void* dst) const = 0; - - // To be deleted. Used to return true if flag's current value originated from - // command line. - virtual bool IsSpecifiedOnCommandLine() const = 0; - - // Validates supplied value usign validator or parseflag routine - virtual bool ValidateInputValue(absl::string_view value) const = 0; - - // Checks that flags default value can be converted to string and back to the - // flag's value type. - virtual void CheckDefaultValueParsingRoundtrip() const = 0; -}; - } // namespace flags_internal ABSL_NAMESPACE_END } // namespace absl diff --git a/third_party/abseil_cpp/absl/flags/internal/flag.cc b/third_party/abseil_cpp/absl/flags/internal/flag.cc index 96c026dcb5..1502e7f11d 100644 --- a/third_party/abseil_cpp/absl/flags/internal/flag.cc +++ b/third_party/abseil_cpp/absl/flags/internal/flag.cc @@ -15,22 +15,26 @@ #include "absl/flags/internal/flag.h" +#include <assert.h> #include <stddef.h> #include <stdint.h> #include <string.h> +#include <array> #include <atomic> #include <memory> +#include <new> #include <string> -#include <vector> +#include <typeinfo> -#include "absl/base/attributes.h" +#include "absl/base/call_once.h" #include "absl/base/casts.h" #include "absl/base/config.h" -#include "absl/base/const_init.h" #include "absl/base/optimization.h" +#include "absl/flags/config.h" #include "absl/flags/internal/commandlineflag.h" #include "absl/flags/usage_config.h" +#include "absl/memory/memory.h" #include "absl/strings/str_cat.h" #include "absl/strings/string_view.h" #include "absl/synchronization/mutex.h" @@ -63,14 +67,14 @@ bool ShouldValidateFlagValue(FlagFastTypeId flag_type_id) { // need to acquire these locks themselves. class MutexRelock { public: - explicit MutexRelock(absl::Mutex* mu) : mu_(mu) { mu_->Unlock(); } - ~MutexRelock() { mu_->Lock(); } + explicit MutexRelock(absl::Mutex& mu) : mu_(mu) { mu_.Unlock(); } + ~MutexRelock() { mu_.Lock(); } MutexRelock(const MutexRelock&) = delete; MutexRelock& operator=(const MutexRelock&) = delete; private: - absl::Mutex* mu_; + absl::Mutex& mu_; }; } // namespace @@ -83,7 +87,7 @@ class FlagImpl; class FlagState : public flags_internal::FlagStateInterface { public: template <typename V> - FlagState(FlagImpl* flag_impl, const V& v, bool modified, + FlagState(FlagImpl& flag_impl, const V& v, bool modified, bool on_command_line, int64_t counter) : flag_impl_(flag_impl), value_(v), @@ -92,9 +96,9 @@ class FlagState : public flags_internal::FlagStateInterface { counter_(counter) {} ~FlagState() override { - if (flag_impl_->ValueStorageKind() != FlagValueStorageKind::kAlignedBuffer) + if (flag_impl_.ValueStorageKind() != FlagValueStorageKind::kAlignedBuffer) return; - flags_internal::Delete(flag_impl_->op_, value_.heap_allocated); + flags_internal::Delete(flag_impl_.op_, value_.heap_allocated); } private: @@ -102,15 +106,15 @@ class FlagState : public flags_internal::FlagStateInterface { // Restores the flag to the saved state. void Restore() const override { - if (!flag_impl_->RestoreState(*this)) return; + if (!flag_impl_.RestoreState(*this)) return; - ABSL_INTERNAL_LOG( - INFO, absl::StrCat("Restore saved value of ", flag_impl_->Name(), - " to: ", flag_impl_->CurrentValue())); + ABSL_INTERNAL_LOG(INFO, + absl::StrCat("Restore saved value of ", flag_impl_.Name(), + " to: ", flag_impl_.CurrentValue())); } // Flag and saved flag data. - FlagImpl* flag_impl_; + FlagImpl& flag_impl_; union SavedValue { explicit SavedValue(void* v) : heap_allocated(v) {} explicit SavedValue(int64_t v) : one_word(v) {} @@ -327,7 +331,7 @@ void FlagImpl::InvokeCallback() const { // and it also can be different by the time the callback invocation is // completed. Requires that *primary_lock be held in exclusive mode; it may be // released and reacquired by the implementation. - MutexRelock relock(DataGuard()); + MutexRelock relock(*DataGuard()); absl::MutexLock lock(&callback_->guard); cb(); } @@ -340,17 +344,17 @@ std::unique_ptr<FlagStateInterface> FlagImpl::SaveState() { switch (ValueStorageKind()) { case FlagValueStorageKind::kAlignedBuffer: { return absl::make_unique<FlagState>( - this, flags_internal::Clone(op_, AlignedBufferValue()), modified, + *this, flags_internal::Clone(op_, AlignedBufferValue()), modified, on_command_line, counter_); } case FlagValueStorageKind::kOneWordAtomic: { return absl::make_unique<FlagState>( - this, OneWordValue().load(std::memory_order_acquire), modified, + *this, OneWordValue().load(std::memory_order_acquire), modified, on_command_line, counter_); } case FlagValueStorageKind::kTwoWordsAtomic: { return absl::make_unique<FlagState>( - this, TwoWordsValue().load(std::memory_order_acquire), modified, + *this, TwoWordsValue().load(std::memory_order_acquire), modified, on_command_line, counter_); } } @@ -411,14 +415,14 @@ std::atomic<AlignedTwoWords>& FlagImpl::TwoWordsValue() const { // parsed value. In case if any error is encountered in either step, the error // message is stored in 'err' std::unique_ptr<void, DynValueDeleter> FlagImpl::TryParse( - absl::string_view value, std::string* err) const { + absl::string_view value, std::string& err) const { std::unique_ptr<void, DynValueDeleter> tentative_value = MakeInitValue(); std::string parse_err; if (!flags_internal::Parse(op_, value, tentative_value.get(), &parse_err)) { absl::string_view err_sep = parse_err.empty() ? "" : "; "; - *err = absl::StrCat("Illegal value '", value, "' specified for flag '", - Name(), "'", err_sep, parse_err); + err = absl::StrCat("Illegal value '", value, "' specified for flag '", + Name(), "'", err_sep, parse_err); return nullptr; } @@ -474,7 +478,7 @@ void FlagImpl::Write(const void* src) { // * Update the current flag value if it was never set before // The mode is selected based on 'set_mode' parameter. bool FlagImpl::ParseFrom(absl::string_view value, FlagSettingMode set_mode, - ValueSource source, std::string* err) { + ValueSource source, std::string& err) { absl::MutexLock l(DataGuard()); switch (set_mode) { diff --git a/third_party/abseil_cpp/absl/flags/internal/flag.h b/third_party/abseil_cpp/absl/flags/internal/flag.h index e374ecde3d..2cc44e00f7 100644 --- a/third_party/abseil_cpp/absl/flags/internal/flag.h +++ b/third_party/abseil_cpp/absl/flags/internal/flag.h @@ -16,31 +16,36 @@ #ifndef ABSL_FLAGS_INTERNAL_FLAG_H_ #define ABSL_FLAGS_INTERNAL_FLAG_H_ +#include <stddef.h> #include <stdint.h> #include <atomic> #include <cstring> #include <memory> +#include <new> #include <string> #include <type_traits> #include <typeinfo> +#include "absl/base/attributes.h" #include "absl/base/call_once.h" #include "absl/base/config.h" +#include "absl/base/optimization.h" #include "absl/base/thread_annotations.h" +#include "absl/flags/commandlineflag.h" #include "absl/flags/config.h" #include "absl/flags/internal/commandlineflag.h" #include "absl/flags/internal/registry.h" #include "absl/flags/marshalling.h" -#include "absl/memory/memory.h" #include "absl/meta/type_traits.h" -#include "absl/strings/str_cat.h" #include "absl/strings/string_view.h" #include "absl/synchronization/mutex.h" +#include "absl/utility/utility.h" namespace absl { ABSL_NAMESPACE_BEGIN +/////////////////////////////////////////////////////////////////////////////// // Forward declaration of absl::Flag<T> public API. namespace flags_internal { template <typename T> @@ -64,12 +69,15 @@ void SetFlag(absl::Flag<T>* flag, const T& v); template <typename T, typename V> void SetFlag(absl::Flag<T>* flag, const V& v); -namespace flags_internal { +template <typename U> +const CommandLineFlag& GetFlagReflectionHandle(const absl::Flag<U>& f); /////////////////////////////////////////////////////////////////////////////// // Flag value type operations, eg., parsing, copying, etc. are provided // by function specific to that type with a signature matching FlagOpFn. +namespace flags_internal { + enum class FlagOp { kAlloc, kDelete, @@ -168,6 +176,28 @@ inline const std::type_info* GenRuntimeTypeId() { // cases. using HelpGenFunc = std::string (*)(); +template <size_t N> +struct FixedCharArray { + char value[N]; + + template <size_t... I> + static constexpr FixedCharArray<N> FromLiteralString( + absl::string_view str, absl::index_sequence<I...>) { + return (void)str, FixedCharArray<N>({{str[I]..., '\0'}}); + } +}; + +template <typename Gen, size_t N = Gen::Value().size()> +constexpr FixedCharArray<N + 1> HelpStringAsArray(int) { + return FixedCharArray<N + 1>::FromLiteralString( + Gen::Value(), absl::make_index_sequence<N>{}); +} + +template <typename Gen> +constexpr std::false_type HelpStringAsArray(char) { + return std::false_type{}; +} + union FlagHelpMsg { constexpr explicit FlagHelpMsg(const char* help_msg) : literal(help_msg) {} constexpr explicit FlagHelpMsg(HelpGenFunc help_gen) : gen_func(help_gen) {} @@ -185,40 +215,28 @@ struct FlagHelpArg { extern const char kStrippedFlagHelp[]; -// HelpConstexprWrap is used by struct AbslFlagHelpGenFor##name generated by -// ABSL_FLAG macro. It is only used to silence the compiler in the case where -// help message expression is not constexpr and does not have type const char*. -// If help message expression is indeed constexpr const char* HelpConstexprWrap -// is just a trivial identity function. -template <typename T> -const char* HelpConstexprWrap(const T&) { - return nullptr; -} -constexpr const char* HelpConstexprWrap(const char* p) { return p; } -constexpr const char* HelpConstexprWrap(char* p) { return p; } - // These two HelpArg overloads allows us to select at compile time one of two // way to pass Help argument to absl::Flag. We'll be passing -// AbslFlagHelpGenFor##name as T and integer 0 as a single argument to prefer -// first overload if possible. If T::Const is evaluatable on constexpr -// context (see non template int parameter below) we'll choose first overload. -// In this case the help message expression is immediately evaluated and is used -// to construct the absl::Flag. No additionl code is generated by ABSL_FLAG. -// Otherwise SFINAE kicks in and first overload is dropped from the +// AbslFlagHelpGenFor##name as Gen and integer 0 as a single argument to prefer +// first overload if possible. If help message is evaluatable on constexpr +// context We'll be able to make FixedCharArray out of it and we'll choose first +// overload. In this case the help message expression is immediately evaluated +// and is used to construct the absl::Flag. No additionl code is generated by +// ABSL_FLAG Otherwise SFINAE kicks in and first overload is dropped from the // consideration, in which case the second overload will be used. The second // overload does not attempt to evaluate the help message expression // immediately and instead delays the evaluation by returing the function // pointer (&T::NonConst) genering the help message when necessary. This is // evaluatable in constexpr context, but the cost is an extra function being // generated in the ABSL_FLAG code. -template <typename T, int = (T::Const(), 1)> -constexpr FlagHelpArg HelpArg(int) { - return {FlagHelpMsg(T::Const()), FlagHelpKind::kLiteral}; +template <typename Gen, size_t N> +constexpr FlagHelpArg HelpArg(const FixedCharArray<N>& value) { + return {FlagHelpMsg(value.value), FlagHelpKind::kLiteral}; } -template <typename T> -constexpr FlagHelpArg HelpArg(char) { - return {FlagHelpMsg(&T::NonConst), FlagHelpKind::kGenFunc}; +template <typename Gen> +constexpr FlagHelpArg HelpArg(std::false_type) { + return {FlagHelpMsg(&Gen::NonConst), FlagHelpKind::kGenFunc}; } /////////////////////////////////////////////////////////////////////////////// @@ -364,31 +382,31 @@ struct FlagValue; template <typename T> struct FlagValue<T, FlagValueStorageKind::kAlignedBuffer> { - bool Get(T*) const { return false; } + bool Get(T&) const { return false; } alignas(T) char value[sizeof(T)]; }; template <typename T> struct FlagValue<T, FlagValueStorageKind::kOneWordAtomic> : FlagOneWordValue { - bool Get(T* dst) const { + bool Get(T& dst) const { int64_t one_word_val = value.load(std::memory_order_acquire); if (ABSL_PREDICT_FALSE(one_word_val == UninitializedFlagValue())) { return false; } - std::memcpy(dst, static_cast<const void*>(&one_word_val), sizeof(T)); + std::memcpy(&dst, static_cast<const void*>(&one_word_val), sizeof(T)); return true; } }; template <typename T> struct FlagValue<T, FlagValueStorageKind::kTwoWordsAtomic> : FlagTwoWordsValue { - bool Get(T* dst) const { + bool Get(T& dst) const { AlignedTwoWords two_words_val = value.load(std::memory_order_acquire); if (ABSL_PREDICT_FALSE(!two_words_val.IsInitialized())) { return false; } - std::memcpy(dst, static_cast<const void*>(&two_words_val), sizeof(T)); + std::memcpy(&dst, static_cast<const void*>(&two_words_val), sizeof(T)); return true; } }; @@ -419,7 +437,7 @@ struct DynValueDeleter { class FlagState; -class FlagImpl final : public flags_internal::CommandLineFlag { +class FlagImpl final : public CommandLineFlag { public: constexpr FlagImpl(const char* name, const char* filename, FlagOpFn op, FlagHelpArg help, FlagValueStorageKind value_kind, @@ -492,7 +510,7 @@ class FlagImpl final : public flags_internal::CommandLineFlag { // Attempts to parse supplied `value` string. If parsing is successful, // returns new value. Otherwise returns nullptr. std::unique_ptr<void, DynValueDeleter> TryParse(absl::string_view value, - std::string* err) const + std::string& err) const ABSL_EXCLUSIVE_LOCKS_REQUIRED(*DataGuard()); // Stores the flag value based on the pointer to the source. void StoreValue(const void* src) ABSL_EXCLUSIVE_LOCKS_REQUIRED(*DataGuard()); @@ -534,7 +552,7 @@ class FlagImpl final : public flags_internal::CommandLineFlag { ABSL_LOCKS_EXCLUDED(*DataGuard()); bool ParseFrom(absl::string_view value, FlagSettingMode set_mode, - ValueSource source, std::string* error) override + ValueSource source, std::string& error) override ABSL_LOCKS_EXCLUDED(*DataGuard()); // Immutable flag's state. @@ -641,7 +659,7 @@ class Flag { impl_.AssertValidType(base_internal::FastTypeId<T>(), &GenRuntimeTypeId<T>); #endif - if (!value_.Get(&u.value)) impl_.Read(&u.value); + if (!value_.Get(u.value)) impl_.Read(&u.value); return std::move(u.value); } void Set(const T& v) { @@ -649,6 +667,13 @@ class Flag { impl_.Write(&v); } + template <typename U> + friend const CommandLineFlag& absl::GetFlagReflectionHandle( + const absl::Flag<U>& f); + + // Access to the reflection. + const CommandLineFlag& Reflect() const { return impl_; } + // Flag's data // The implementation depends on value_ field to be placed exactly after the // impl_ field, so that impl_ can figure out the offset to the value and @@ -720,12 +745,12 @@ struct FlagRegistrarEmpty {}; template <typename T, bool do_register> class FlagRegistrar { public: - explicit FlagRegistrar(Flag<T>* flag) : flag_(flag) { - if (do_register) flags_internal::RegisterCommandLineFlag(&flag_->impl_); + explicit FlagRegistrar(Flag<T>& flag) : flag_(flag) { + if (do_register) flags_internal::RegisterCommandLineFlag(flag_.impl_); } FlagRegistrar OnUpdate(FlagCallbackFunc cb) && { - flag_->impl_.SetCallback(cb); + flag_.impl_.SetCallback(cb); return *this; } @@ -735,7 +760,7 @@ class FlagRegistrar { operator FlagRegistrarEmpty() const { return {}; } // NOLINT private: - Flag<T>* flag_; // Flag being registered (not owned). + Flag<T>& flag_; // Flag being registered (not owned). }; } // namespace flags_internal diff --git a/third_party/abseil_cpp/absl/flags/internal/parse.h b/third_party/abseil_cpp/absl/flags/internal/parse.h index d259be733c..de706c8984 100644 --- a/third_party/abseil_cpp/absl/flags/internal/parse.h +++ b/third_party/abseil_cpp/absl/flags/internal/parse.h @@ -21,6 +21,7 @@ #include "absl/base/config.h" #include "absl/flags/declare.h" +#include "absl/strings/string_view.h" ABSL_DECLARE_FLAG(std::vector<std::string>, flagfile); ABSL_DECLARE_FLAG(std::vector<std::string>, fromenv); diff --git a/third_party/abseil_cpp/absl/flags/internal/path_util.h b/third_party/abseil_cpp/absl/flags/internal/path_util.h index 365c830522..a6594d3347 100644 --- a/third_party/abseil_cpp/absl/flags/internal/path_util.h +++ b/third_party/abseil_cpp/absl/flags/internal/path_util.h @@ -17,7 +17,6 @@ #define ABSL_FLAGS_INTERNAL_PATH_UTIL_H_ #include "absl/base/config.h" -#include "absl/strings/match.h" #include "absl/strings/string_view.h" namespace absl { diff --git a/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.cc b/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.cc index 64fe31663a..a7eb58b6d4 100644 --- a/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.cc +++ b/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.cc @@ -15,6 +15,14 @@ #include "absl/flags/internal/private_handle_accessor.h" +#include <memory> +#include <string> + +#include "absl/base/config.h" +#include "absl/flags/commandlineflag.h" +#include "absl/flags/internal/commandlineflag.h" +#include "absl/strings/string_view.h" + namespace absl { ABSL_NAMESPACE_BEGIN namespace flags_internal { @@ -24,8 +32,8 @@ FlagFastTypeId PrivateHandleAccessor::TypeId(const CommandLineFlag& flag) { } std::unique_ptr<FlagStateInterface> PrivateHandleAccessor::SaveState( - CommandLineFlag* flag) { - return flag->SaveState(); + CommandLineFlag& flag) { + return flag.SaveState(); } bool PrivateHandleAccessor::IsSpecifiedOnCommandLine( @@ -43,12 +51,12 @@ void PrivateHandleAccessor::CheckDefaultValueParsingRoundtrip( flag.CheckDefaultValueParsingRoundtrip(); } -bool PrivateHandleAccessor::ParseFrom(CommandLineFlag* flag, +bool PrivateHandleAccessor::ParseFrom(CommandLineFlag& flag, absl::string_view value, flags_internal::FlagSettingMode set_mode, flags_internal::ValueSource source, - std::string* error) { - return flag->ParseFrom(value, set_mode, source, error); + std::string& error) { + return flag.ParseFrom(value, set_mode, source, error); } } // namespace flags_internal diff --git a/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.h b/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.h index 40591de447..c64435cd61 100644 --- a/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.h +++ b/third_party/abseil_cpp/absl/flags/internal/private_handle_accessor.h @@ -16,7 +16,13 @@ #ifndef ABSL_FLAGS_INTERNAL_PRIVATE_HANDLE_ACCESSOR_H_ #define ABSL_FLAGS_INTERNAL_PRIVATE_HANDLE_ACCESSOR_H_ +#include <memory> +#include <string> + +#include "absl/base/config.h" +#include "absl/flags/commandlineflag.h" #include "absl/flags/internal/commandlineflag.h" +#include "absl/strings/string_view.h" namespace absl { ABSL_NAMESPACE_BEGIN @@ -31,7 +37,7 @@ class PrivateHandleAccessor { static FlagFastTypeId TypeId(const CommandLineFlag& flag); // Access to CommandLineFlag::SaveState. - static std::unique_ptr<FlagStateInterface> SaveState(CommandLineFlag* flag); + static std::unique_ptr<FlagStateInterface> SaveState(CommandLineFlag& flag); // Access to CommandLineFlag::IsSpecifiedOnCommandLine. static bool IsSpecifiedOnCommandLine(const CommandLineFlag& flag); @@ -43,9 +49,9 @@ class PrivateHandleAccessor { // Access to CommandLineFlag::CheckDefaultValueParsingRoundtrip. static void CheckDefaultValueParsingRoundtrip(const CommandLineFlag& flag); - static bool ParseFrom(CommandLineFlag* flag, absl::string_view value, + static bool ParseFrom(CommandLineFlag& flag, absl::string_view value, flags_internal::FlagSettingMode set_mode, - flags_internal::ValueSource source, std::string* error); + flags_internal::ValueSource source, std::string& error); }; } // namespace flags_internal diff --git a/third_party/abseil_cpp/absl/flags/internal/program_name_test.cc b/third_party/abseil_cpp/absl/flags/internal/program_name_test.cc index 269142f225..aff9f6315e 100644 --- a/third_party/abseil_cpp/absl/flags/internal/program_name_test.cc +++ b/third_party/abseil_cpp/absl/flags/internal/program_name_test.cc @@ -25,7 +25,7 @@ namespace { namespace flags = absl::flags_internal; -TEST(FlagsPathUtilTest, TestInitialProgamName) { +TEST(FlagsPathUtilTest, TestProgamNameInterfaces) { flags::SetProgramInvocationName("absl/flags/program_name_test"); std::string program_name = flags::ProgramInvocationName(); for (char& c : program_name) @@ -43,9 +43,7 @@ TEST(FlagsPathUtilTest, TestInitialProgamName) { EXPECT_TRUE(absl::EndsWith(program_name, expect_name)) << program_name; EXPECT_EQ(flags::ShortProgramInvocationName(), expect_basename); -} -TEST(FlagsPathUtilTest, TestProgamNameInterfaces) { flags::SetProgramInvocationName("a/my_test"); EXPECT_EQ(flags::ProgramInvocationName(), "a/my_test"); diff --git a/third_party/abseil_cpp/absl/flags/internal/registry.h b/third_party/abseil_cpp/absl/flags/internal/registry.h index af8ed6b99b..6f5006a016 100644 --- a/third_party/abseil_cpp/absl/flags/internal/registry.h +++ b/third_party/abseil_cpp/absl/flags/internal/registry.h @@ -17,11 +17,9 @@ #define ABSL_FLAGS_INTERNAL_REGISTRY_H_ #include <functional> -#include <map> -#include <string> #include "absl/base/config.h" -#include "absl/base/macros.h" +#include "absl/flags/commandlineflag.h" #include "absl/flags/internal/commandlineflag.h" #include "absl/strings/string_view.h" @@ -32,19 +30,16 @@ namespace absl { ABSL_NAMESPACE_BEGIN namespace flags_internal { -CommandLineFlag* FindCommandLineFlag(absl::string_view name); -CommandLineFlag* FindRetiredFlag(absl::string_view name); - // Executes specified visitor for each non-retired flag in the registry. // Requires the caller hold the registry lock. -void ForEachFlagUnlocked(std::function<void(CommandLineFlag*)> visitor); +void ForEachFlagUnlocked(std::function<void(CommandLineFlag&)> visitor); // Executes specified visitor for each non-retired flag in the registry. While // callback are executed, the registry is locked and can't be changed. -void ForEachFlag(std::function<void(CommandLineFlag*)> visitor); +void ForEachFlag(std::function<void(CommandLineFlag&)> visitor); //----------------------------------------------------------------------------- -bool RegisterCommandLineFlag(CommandLineFlag*); +bool RegisterCommandLineFlag(CommandLineFlag&); //----------------------------------------------------------------------------- // Retired registrations: @@ -87,36 +82,6 @@ inline bool RetiredFlag(const char* flag_name) { return flags_internal::Retire(flag_name, base_internal::FastTypeId<T>()); } -// If the flag is retired, returns true and indicates in |*type_is_bool| -// whether the type of the retired flag is a bool. -// Only to be called by code that needs to explicitly ignore retired flags. -bool IsRetiredFlag(absl::string_view name, bool* type_is_bool); - -//----------------------------------------------------------------------------- -// Saves the states (value, default value, whether the user has set -// the flag, registered validators, etc) of all flags, and restores -// them when the FlagSaver is destroyed. -// -// This class is thread-safe. However, its destructor writes to -// exactly the set of flags that have changed value during its -// lifetime, so concurrent _direct_ access to those flags -// (i.e. FLAGS_foo instead of {Get,Set}CommandLineOption()) is unsafe. - -class FlagSaver { - public: - FlagSaver(); - ~FlagSaver(); - - FlagSaver(const FlagSaver&) = delete; - void operator=(const FlagSaver&) = delete; - - // Prevents saver from restoring the saved state of flags. - void Ignore(); - - private: - class FlagSaverImpl* impl_; // we use pimpl here to keep API steady -}; - } // namespace flags_internal ABSL_NAMESPACE_END } // namespace absl diff --git a/third_party/abseil_cpp/absl/flags/internal/type_erased.cc b/third_party/abseil_cpp/absl/flags/internal/type_erased.cc deleted file mode 100644 index c13fb9b0d4..0000000000 --- a/third_party/abseil_cpp/absl/flags/internal/type_erased.cc +++ /dev/null @@ -1,86 +0,0 @@ -// -// 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. - -#include "absl/flags/internal/type_erased.h" - -#include <assert.h> - -#include <string> - -#include "absl/base/config.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/flags/internal/commandlineflag.h" -#include "absl/flags/internal/private_handle_accessor.h" -#include "absl/flags/internal/registry.h" -#include "absl/flags/usage_config.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace flags_internal { - -bool GetCommandLineOption(absl::string_view name, std::string* value) { - if (name.empty()) return false; - assert(value); - - CommandLineFlag* flag = flags_internal::FindCommandLineFlag(name); - if (flag == nullptr || flag->IsRetired()) { - return false; - } - - *value = flag->CurrentValue(); - return true; -} - -bool SetCommandLineOption(absl::string_view name, absl::string_view value) { - return SetCommandLineOptionWithMode(name, value, - flags_internal::SET_FLAGS_VALUE); -} - -bool SetCommandLineOptionWithMode(absl::string_view name, - absl::string_view value, - FlagSettingMode set_mode) { - CommandLineFlag* flag = flags_internal::FindCommandLineFlag(name); - - if (!flag || flag->IsRetired()) return false; - - std::string error; - if (!flags_internal::PrivateHandleAccessor::ParseFrom( - flag, value, set_mode, kProgrammaticChange, &error)) { - // Errors here are all of the form: the provided name was a recognized - // flag, but the value was invalid (bad type, or validation failed). - flags_internal::ReportUsageError(error, false); - return false; - } - - return true; -} - -// -------------------------------------------------------------------- - -bool IsValidFlagValue(absl::string_view name, absl::string_view value) { - CommandLineFlag* flag = flags_internal::FindCommandLineFlag(name); - - return flag != nullptr && - (flag->IsRetired() || - flags_internal::PrivateHandleAccessor::ValidateInputValue(*flag, - value)); -} - -// -------------------------------------------------------------------- - -} // namespace flags_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/flags/internal/type_erased.h b/third_party/abseil_cpp/absl/flags/internal/type_erased.h deleted file mode 100644 index b43a0ff7be..0000000000 --- a/third_party/abseil_cpp/absl/flags/internal/type_erased.h +++ /dev/null @@ -1,79 +0,0 @@ -// -// 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_FLAGS_INTERNAL_TYPE_ERASED_H_ -#define ABSL_FLAGS_INTERNAL_TYPE_ERASED_H_ - -#include <string> - -#include "absl/base/config.h" -#include "absl/flags/internal/commandlineflag.h" -#include "absl/flags/internal/registry.h" -#include "absl/strings/string_view.h" - -// -------------------------------------------------------------------- -// Registry interfaces operating on type erased handles. - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace flags_internal { - -// If a flag named "name" exists, store its current value in *OUTPUT -// and return true. Else return false without changing *OUTPUT. -// Thread-safe. -bool GetCommandLineOption(absl::string_view name, std::string* value); - -// Set the value of the flag named "name" to value. If successful, -// returns true. If not successful (e.g., the flag was not found or -// the value is not a valid value), returns false. -// Thread-safe. -bool SetCommandLineOption(absl::string_view name, absl::string_view value); - -bool SetCommandLineOptionWithMode(absl::string_view name, - absl::string_view value, - FlagSettingMode set_mode); - -//----------------------------------------------------------------------------- - -// Returns true iff all of the following conditions are true: -// (a) "name" names a registered flag -// (b) "value" can be parsed succesfully according to the type of the flag -// (c) parsed value passes any validator associated with the flag -bool IsValidFlagValue(absl::string_view name, absl::string_view value); - -//----------------------------------------------------------------------------- - -// If a flag with specified "name" exists and has type T, store -// its current value in *dst and return true. Else return false -// without touching *dst. T must obey all of the requirements for -// types passed to DEFINE_FLAG. -template <typename T> -inline bool GetByName(absl::string_view name, T* dst) { - CommandLineFlag* flag = flags_internal::FindCommandLineFlag(name); - if (!flag) return false; - - if (auto val = flag->TryGet<T>()) { - *dst = *val; - return true; - } - - return false; -} - -} // namespace flags_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_FLAGS_INTERNAL_TYPE_ERASED_H_ diff --git a/third_party/abseil_cpp/absl/flags/internal/type_erased_test.cc b/third_party/abseil_cpp/absl/flags/internal/type_erased_test.cc deleted file mode 100644 index 4ce5981047..0000000000 --- a/third_party/abseil_cpp/absl/flags/internal/type_erased_test.cc +++ /dev/null @@ -1,157 +0,0 @@ -// -// 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. - -#include "absl/flags/internal/type_erased.h" - -#include <memory> -#include <string> - -#include "gtest/gtest.h" -#include "absl/flags/flag.h" -#include "absl/flags/internal/commandlineflag.h" -#include "absl/flags/internal/registry.h" -#include "absl/flags/marshalling.h" -#include "absl/memory/memory.h" - -ABSL_FLAG(int, int_flag, 1, "int_flag help"); -ABSL_FLAG(std::string, string_flag, "dflt", "string_flag help"); -ABSL_RETIRED_FLAG(bool, bool_retired_flag, false, "bool_retired_flag help"); - -namespace { - -namespace flags = absl::flags_internal; - -class TypeErasedTest : public testing::Test { - protected: - void SetUp() override { flag_saver_ = absl::make_unique<flags::FlagSaver>(); } - void TearDown() override { flag_saver_.reset(); } - - private: - std::unique_ptr<flags::FlagSaver> flag_saver_; -}; - -// -------------------------------------------------------------------- - -TEST_F(TypeErasedTest, TestGetCommandLineOption) { - std::string value; - EXPECT_TRUE(flags::GetCommandLineOption("int_flag", &value)); - EXPECT_EQ(value, "1"); - - EXPECT_TRUE(flags::GetCommandLineOption("string_flag", &value)); - EXPECT_EQ(value, "dflt"); - - EXPECT_FALSE(flags::GetCommandLineOption("bool_retired_flag", &value)); - - EXPECT_FALSE(flags::GetCommandLineOption("unknown_flag", &value)); -} - -// -------------------------------------------------------------------- - -TEST_F(TypeErasedTest, TestSetCommandLineOption) { - EXPECT_TRUE(flags::SetCommandLineOption("int_flag", "101")); - EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 101); - - EXPECT_TRUE(flags::SetCommandLineOption("string_flag", "asdfgh")); - EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), "asdfgh"); - - EXPECT_FALSE(flags::SetCommandLineOption("bool_retired_flag", "true")); - - EXPECT_FALSE(flags::SetCommandLineOption("unknown_flag", "true")); -} - -// -------------------------------------------------------------------- - -TEST_F(TypeErasedTest, TestSetCommandLineOptionWithMode_SET_FLAGS_VALUE) { - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("int_flag", "101", - flags::SET_FLAGS_VALUE)); - EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 101); - - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("string_flag", "asdfgh", - flags::SET_FLAGS_VALUE)); - EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), "asdfgh"); - - EXPECT_FALSE(flags::SetCommandLineOptionWithMode("bool_retired_flag", "true", - flags::SET_FLAGS_VALUE)); - - EXPECT_FALSE(flags::SetCommandLineOptionWithMode("unknown_flag", "true", - flags::SET_FLAGS_VALUE)); -} - -// -------------------------------------------------------------------- - -TEST_F(TypeErasedTest, TestSetCommandLineOptionWithMode_SET_FLAG_IF_DEFAULT) { - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("int_flag", "101", - flags::SET_FLAG_IF_DEFAULT)); - EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 101); - - // This semantic is broken. We return true instead of false. Value is not - // updated. - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("int_flag", "202", - flags::SET_FLAG_IF_DEFAULT)); - EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 101); - - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("string_flag", "asdfgh", - flags::SET_FLAG_IF_DEFAULT)); - EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), "asdfgh"); - - EXPECT_FALSE(flags::SetCommandLineOptionWithMode("bool_retired_flag", "true", - flags::SET_FLAG_IF_DEFAULT)); - - EXPECT_FALSE(flags::SetCommandLineOptionWithMode("unknown_flag", "true", - flags::SET_FLAG_IF_DEFAULT)); -} - -// -------------------------------------------------------------------- - -TEST_F(TypeErasedTest, TestSetCommandLineOptionWithMode_SET_FLAGS_DEFAULT) { - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("int_flag", "101", - flags::SET_FLAGS_DEFAULT)); - - // Set it again to ensure that resetting logic is covered. - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("int_flag", "102", - flags::SET_FLAGS_DEFAULT)); - - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("int_flag", "103", - flags::SET_FLAGS_DEFAULT)); - - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("string_flag", "asdfgh", - flags::SET_FLAGS_DEFAULT)); - EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), "asdfgh"); - - EXPECT_FALSE(flags::SetCommandLineOptionWithMode("bool_retired_flag", "true", - flags::SET_FLAGS_DEFAULT)); - - EXPECT_FALSE(flags::SetCommandLineOptionWithMode("unknown_flag", "true", - flags::SET_FLAGS_DEFAULT)); - - // This should be successfull, since flag is still is not set - EXPECT_TRUE(flags::SetCommandLineOptionWithMode("int_flag", "202", - flags::SET_FLAG_IF_DEFAULT)); - EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 202); -} - -// -------------------------------------------------------------------- - -TEST_F(TypeErasedTest, TestIsValidFlagValue) { - EXPECT_TRUE(flags::IsValidFlagValue("int_flag", "57")); - EXPECT_TRUE(flags::IsValidFlagValue("int_flag", "-101")); - EXPECT_FALSE(flags::IsValidFlagValue("int_flag", "1.1")); - - EXPECT_TRUE(flags::IsValidFlagValue("string_flag", "#%^#%^$%DGHDG$W%adsf")); - - EXPECT_TRUE(flags::IsValidFlagValue("bool_retired_flag", "true")); -} - -} // namespace diff --git a/third_party/abseil_cpp/absl/flags/internal/usage.cc b/third_party/abseil_cpp/absl/flags/internal/usage.cc index 10accc46f3..35b6427b6c 100644 --- a/third_party/abseil_cpp/absl/flags/internal/usage.cc +++ b/third_party/abseil_cpp/absl/flags/internal/usage.cc @@ -15,6 +15,8 @@ #include "absl/flags/internal/usage.h" +#include <stdint.h> + #include <functional> #include <map> #include <ostream> @@ -23,8 +25,8 @@ #include <vector> #include "absl/base/config.h" +#include "absl/flags/commandlineflag.h" #include "absl/flags/flag.h" -#include "absl/flags/internal/commandlineflag.h" #include "absl/flags/internal/flag.h" #include "absl/flags/internal/path_util.h" #include "absl/flags/internal/private_handle_accessor.h" @@ -107,8 +109,8 @@ class FlagHelpPrettyPrinter { public: // Pretty printer holds on to the std::ostream& reference to direct an output // to that stream. - FlagHelpPrettyPrinter(int max_line_len, std::ostream* out) - : out_(*out), + FlagHelpPrettyPrinter(int max_line_len, std::ostream& out) + : out_(out), max_line_len_(max_line_len), line_len_(0), first_line_(true) {} @@ -182,8 +184,7 @@ class FlagHelpPrettyPrinter { bool first_line_; }; -void FlagHelpHumanReadable(const flags_internal::CommandLineFlag& flag, - std::ostream* out) { +void FlagHelpHumanReadable(const CommandLineFlag& flag, std::ostream& out) { FlagHelpPrettyPrinter printer(80, out); // Max line length is 80. // Flag name. @@ -245,30 +246,28 @@ void FlagsHelpImpl(std::ostream& out, flags_internal::FlagKindFilter filter_cb, // This map is used to output matching flags grouped by package and file // name. std::map<std::string, - std::map<std::string, - std::vector<const flags_internal::CommandLineFlag*>>> + std::map<std::string, std::vector<const absl::CommandLineFlag*>>> matching_flags; - flags_internal::ForEachFlag([&](flags_internal::CommandLineFlag* flag) { - std::string flag_filename = flag->Filename(); + flags_internal::ForEachFlag([&](absl::CommandLineFlag& flag) { + std::string flag_filename = flag.Filename(); // Ignore retired flags. - if (flag->IsRetired()) return; + if (flag.IsRetired()) return; // If the flag has been stripped, pretend that it doesn't exist. - if (flag->Help() == flags_internal::kStrippedFlagHelp) return; + if (flag.Help() == flags_internal::kStrippedFlagHelp) return; // Make sure flag satisfies the filter if (!filter_cb || !filter_cb(flag_filename)) return; matching_flags[std::string(flags_internal::Package(flag_filename))] [flag_filename] - .push_back(flag); + .push_back(&flag); }); - absl::string_view - package_separator; // controls blank lines between packages. - absl::string_view file_separator; // controls blank lines between files. + absl::string_view package_separator; // controls blank lines between packages + absl::string_view file_separator; // controls blank lines between files for (const auto& package : matching_flags) { if (format == HelpFormat::kHumanReadable) { out << package_separator; @@ -303,10 +302,10 @@ void FlagsHelpImpl(std::ostream& out, flags_internal::FlagKindFilter filter_cb, // -------------------------------------------------------------------- // Produces the help message describing specific flag. -void FlagHelp(std::ostream& out, const flags_internal::CommandLineFlag& flag, +void FlagHelp(std::ostream& out, const CommandLineFlag& flag, HelpFormat format) { if (format == HelpFormat::kHumanReadable) - flags_internal::FlagHelpHumanReadable(flag, &out); + flags_internal::FlagHelpHumanReadable(flag, out); } // -------------------------------------------------------------------- diff --git a/third_party/abseil_cpp/absl/flags/internal/usage.h b/third_party/abseil_cpp/absl/flags/internal/usage.h index 6b080fd1ee..0c62dc4b2a 100644 --- a/third_party/abseil_cpp/absl/flags/internal/usage.h +++ b/third_party/abseil_cpp/absl/flags/internal/usage.h @@ -20,8 +20,8 @@ #include <string> #include "absl/base/config.h" +#include "absl/flags/commandlineflag.h" #include "absl/flags/declare.h" -#include "absl/flags/internal/commandlineflag.h" #include "absl/strings/string_view.h" // -------------------------------------------------------------------- @@ -37,7 +37,7 @@ enum class HelpFormat { }; // Outputs the help message describing specific flag. -void FlagHelp(std::ostream& out, const flags_internal::CommandLineFlag& flag, +void FlagHelp(std::ostream& out, const CommandLineFlag& flag, HelpFormat format = HelpFormat::kHumanReadable); // Produces the help messages for all flags matching the filter. A flag matches diff --git a/third_party/abseil_cpp/absl/flags/internal/usage_test.cc b/third_party/abseil_cpp/absl/flags/internal/usage_test.cc index 8dd3532e6d..6e583fbe4b 100644 --- a/third_party/abseil_cpp/absl/flags/internal/usage_test.cc +++ b/third_party/abseil_cpp/absl/flags/internal/usage_test.cc @@ -21,15 +21,13 @@ #include <string> #include "gtest/gtest.h" -#include "absl/flags/declare.h" #include "absl/flags/flag.h" #include "absl/flags/internal/parse.h" #include "absl/flags/internal/path_util.h" #include "absl/flags/internal/program_name.h" -#include "absl/flags/internal/registry.h" +#include "absl/flags/reflection.h" #include "absl/flags/usage.h" #include "absl/flags/usage_config.h" -#include "absl/memory/memory.h" #include "absl/strings/match.h" #include "absl/strings/string_view.h" @@ -91,7 +89,7 @@ class UsageReportingTest : public testing::Test { } private: - flags::FlagSaver flag_saver_; + absl::FlagSaver flag_saver_; }; // -------------------------------------------------------------------- @@ -112,7 +110,7 @@ TEST_F(UsageReportingDeathTest, TestSetProgramUsageMessage) { // -------------------------------------------------------------------- TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_01) { - const auto* flag = flags::FindCommandLineFlag("usage_reporting_test_flag_01"); + const auto* flag = absl::FindCommandLineFlag("usage_reporting_test_flag_01"); std::stringstream test_buf; flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable); @@ -124,7 +122,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_01) { } TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_02) { - const auto* flag = flags::FindCommandLineFlag("usage_reporting_test_flag_02"); + const auto* flag = absl::FindCommandLineFlag("usage_reporting_test_flag_02"); std::stringstream test_buf; flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable); @@ -136,7 +134,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_02) { } TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_03) { - const auto* flag = flags::FindCommandLineFlag("usage_reporting_test_flag_03"); + const auto* flag = absl::FindCommandLineFlag("usage_reporting_test_flag_03"); std::stringstream test_buf; flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable); @@ -148,7 +146,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_03) { } TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_04) { - const auto* flag = flags::FindCommandLineFlag("usage_reporting_test_flag_04"); + const auto* flag = absl::FindCommandLineFlag("usage_reporting_test_flag_04"); std::stringstream test_buf; flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable); @@ -160,7 +158,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_04) { } TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_05) { - const auto* flag = flags::FindCommandLineFlag("usage_reporting_test_flag_05"); + const auto* flag = absl::FindCommandLineFlag("usage_reporting_test_flag_05"); std::stringstream test_buf; flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable); diff --git a/third_party/abseil_cpp/absl/flags/marshalling.cc b/third_party/abseil_cpp/absl/flags/marshalling.cc index 09baae88cd..81f9cebd6f 100644 --- a/third_party/abseil_cpp/absl/flags/marshalling.cc +++ b/third_party/abseil_cpp/absl/flags/marshalling.cc @@ -74,15 +74,16 @@ static int NumericBase(absl::string_view text) { } template <typename IntType> -inline bool ParseFlagImpl(absl::string_view text, IntType* dst) { +inline bool ParseFlagImpl(absl::string_view text, IntType& dst) { text = absl::StripAsciiWhitespace(text); - return absl::numbers_internal::safe_strtoi_base(text, dst, NumericBase(text)); + return absl::numbers_internal::safe_strtoi_base(text, &dst, + NumericBase(text)); } bool AbslParseFlag(absl::string_view text, short* dst, std::string*) { int val; - if (!ParseFlagImpl(text, &val)) return false; + if (!ParseFlagImpl(text, val)) return false; if (static_cast<short>(val) != val) // worked, but number out of range return false; *dst = static_cast<short>(val); @@ -91,7 +92,7 @@ bool AbslParseFlag(absl::string_view text, short* dst, std::string*) { bool AbslParseFlag(absl::string_view text, unsigned short* dst, std::string*) { unsigned int val; - if (!ParseFlagImpl(text, &val)) return false; + if (!ParseFlagImpl(text, val)) return false; if (static_cast<unsigned short>(val) != val) // worked, but number out of range return false; @@ -100,28 +101,28 @@ bool AbslParseFlag(absl::string_view text, unsigned short* dst, std::string*) { } bool AbslParseFlag(absl::string_view text, int* dst, std::string*) { - return ParseFlagImpl(text, dst); + return ParseFlagImpl(text, *dst); } bool AbslParseFlag(absl::string_view text, unsigned int* dst, std::string*) { - return ParseFlagImpl(text, dst); + return ParseFlagImpl(text, *dst); } bool AbslParseFlag(absl::string_view text, long* dst, std::string*) { - return ParseFlagImpl(text, dst); + return ParseFlagImpl(text, *dst); } bool AbslParseFlag(absl::string_view text, unsigned long* dst, std::string*) { - return ParseFlagImpl(text, dst); + return ParseFlagImpl(text, *dst); } bool AbslParseFlag(absl::string_view text, long long* dst, std::string*) { - return ParseFlagImpl(text, dst); + return ParseFlagImpl(text, *dst); } bool AbslParseFlag(absl::string_view text, unsigned long long* dst, std::string*) { - return ParseFlagImpl(text, dst); + return ParseFlagImpl(text, *dst); } // -------------------------------------------------------------------- diff --git a/third_party/abseil_cpp/absl/flags/parse.cc b/third_party/abseil_cpp/absl/flags/parse.cc index fbf4267512..e2c88ff863 100644 --- a/third_party/abseil_cpp/absl/flags/parse.cc +++ b/third_party/abseil_cpp/absl/flags/parse.cc @@ -34,6 +34,7 @@ #include "absl/base/config.h" #include "absl/base/const_init.h" #include "absl/base/thread_annotations.h" +#include "absl/flags/commandlineflag.h" #include "absl/flags/config.h" #include "absl/flags/flag.h" #include "absl/flags/internal/commandlineflag.h" @@ -41,8 +42,8 @@ #include "absl/flags/internal/parse.h" #include "absl/flags/internal/private_handle_accessor.h" #include "absl/flags/internal/program_name.h" -#include "absl/flags/internal/registry.h" #include "absl/flags/internal/usage.h" +#include "absl/flags/reflection.h" #include "absl/flags/usage.h" #include "absl/flags/usage_config.h" #include "absl/strings/ascii.h" @@ -222,7 +223,7 @@ bool ArgsList::ReadFromFlagfile(const std::string& flag_file_name) { // Reads the environment variable with name `name` and stores results in // `value`. If variable is not present in environment returns false, otherwise // returns true. -bool GetEnvVar(const char* var_name, std::string* var_value) { +bool GetEnvVar(const char* var_name, std::string& var_value) { #ifdef _WIN32 char buf[1024]; auto get_res = GetEnvironmentVariableA(var_name, buf, sizeof(buf)); @@ -234,14 +235,14 @@ bool GetEnvVar(const char* var_name, std::string* var_value) { return false; } - *var_value = std::string(buf, get_res); + var_value = std::string(buf, get_res); #else const char* val = ::getenv(var_name); if (val == nullptr) { return false; } - *var_value = val; + var_value = val; #endif return true; @@ -289,11 +290,11 @@ std::tuple<absl::string_view, absl::string_view, bool> SplitNameAndValue( // found flag or nullptr // is negative in case of --nofoo std::tuple<CommandLineFlag*, bool> LocateFlag(absl::string_view flag_name) { - CommandLineFlag* flag = flags_internal::FindCommandLineFlag(flag_name); + CommandLineFlag* flag = absl::FindCommandLineFlag(flag_name); bool is_negative = false; if (!flag && absl::ConsumePrefix(&flag_name, "no")) { - flag = flags_internal::FindCommandLineFlag(flag_name); + flag = absl::FindCommandLineFlag(flag_name); is_negative = true; } @@ -306,17 +307,17 @@ std::tuple<CommandLineFlag*, bool> LocateFlag(absl::string_view flag_name) { // back. void CheckDefaultValuesParsingRoundtrip() { #ifndef NDEBUG - flags_internal::ForEachFlag([&](CommandLineFlag* flag) { - if (flag->IsRetired()) return; + flags_internal::ForEachFlag([&](CommandLineFlag& flag) { + if (flag.IsRetired()) return; #define ABSL_FLAGS_INTERNAL_IGNORE_TYPE(T, _) \ - if (flag->IsOfType<T>()) return; + if (flag.IsOfType<T>()) return; ABSL_FLAGS_INTERNAL_SUPPORTED_TYPES(ABSL_FLAGS_INTERNAL_IGNORE_TYPE) #undef ABSL_FLAGS_INTERNAL_IGNORE_TYPE flags_internal::PrivateHandleAccessor::CheckDefaultValueParsingRoundtrip( - *flag); + flag); }); #endif } @@ -329,13 +330,13 @@ void CheckDefaultValuesParsingRoundtrip() { // the first flagfile in the input list are processed before the second flagfile // etc. bool ReadFlagfiles(const std::vector<std::string>& flagfiles, - std::vector<ArgsList>* input_args) { + std::vector<ArgsList>& input_args) { bool success = true; for (auto it = flagfiles.rbegin(); it != flagfiles.rend(); ++it) { ArgsList al; if (al.ReadFromFlagfile(*it)) { - input_args->push_back(al); + input_args.push_back(al); } else { success = false; } @@ -350,7 +351,7 @@ bool ReadFlagfiles(const std::vector<std::string>& flagfiles, // `flag_name` is a string from the input flag_names list. If successful we // append a single ArgList at the end of the input_args. bool ReadFlagsFromEnv(const std::vector<std::string>& flag_names, - std::vector<ArgsList>* input_args, + std::vector<ArgsList>& input_args, bool fail_on_absent_in_env) { bool success = true; std::vector<std::string> args; @@ -371,7 +372,7 @@ bool ReadFlagsFromEnv(const std::vector<std::string>& flag_names, const std::string envname = absl::StrCat("FLAGS_", flag_name); std::string envval; - if (!GetEnvVar(envname.c_str(), &envval)) { + if (!GetEnvVar(envname.c_str(), envval)) { if (fail_on_absent_in_env) { flags_internal::ReportUsageError( absl::StrCat(envname, " not found in environment"), true); @@ -386,7 +387,7 @@ bool ReadFlagsFromEnv(const std::vector<std::string>& flag_names, } if (success) { - input_args->emplace_back(args); + input_args.emplace_back(args); } return success; @@ -396,8 +397,8 @@ bool ReadFlagsFromEnv(const std::vector<std::string>& flag_names, // Returns success status, which is true if were able to handle all generator // flags (flagfile, fromenv, tryfromemv) successfully. -bool HandleGeneratorFlags(std::vector<ArgsList>* input_args, - std::vector<std::string>* flagfile_value) { +bool HandleGeneratorFlags(std::vector<ArgsList>& input_args, + std::vector<std::string>& flagfile_value) { bool success = true; absl::MutexLock l(&flags_internal::processing_checks_guard); @@ -422,9 +423,9 @@ bool HandleGeneratorFlags(std::vector<ArgsList>* input_args, if (flags_internal::flagfile_needs_processing) { auto flagfiles = absl::GetFlag(FLAGS_flagfile); - if (input_args->size() == 1) { - flagfile_value->insert(flagfile_value->end(), flagfiles.begin(), - flagfiles.end()); + if (input_args.size() == 1) { + flagfile_value.insert(flagfile_value.end(), flagfiles.begin(), + flagfiles.end()); } success &= ReadFlagfiles(flagfiles, input_args); @@ -647,7 +648,7 @@ std::vector<char*> ParseCommandLineImpl(int argc, char* argv[], bool success = true; while (!input_args.empty()) { // 10. First we process the built-in generator flags. - success &= HandleGeneratorFlags(&input_args, &flagfile_value); + success &= HandleGeneratorFlags(input_args, flagfile_value); // 30. Select top-most (most recent) arguments list. If it is empty drop it // and re-try. @@ -733,7 +734,7 @@ std::vector<char*> ParseCommandLineImpl(int argc, char* argv[], std::string error; if (!flags_internal::PrivateHandleAccessor::ParseFrom( - flag, value, SET_FLAGS_VALUE, kCommandLine, &error)) { + *flag, value, SET_FLAGS_VALUE, kCommandLine, error)) { flags_internal::ReportUsageError(error, true); success = false; } else { diff --git a/third_party/abseil_cpp/absl/flags/parse.h b/third_party/abseil_cpp/absl/flags/parse.h index f37b0602e6..929de2cb40 100644 --- a/third_party/abseil_cpp/absl/flags/parse.h +++ b/third_party/abseil_cpp/absl/flags/parse.h @@ -23,7 +23,6 @@ #ifndef ABSL_FLAGS_PARSE_H_ #define ABSL_FLAGS_PARSE_H_ -#include <string> #include <vector> #include "absl/base/config.h" diff --git a/third_party/abseil_cpp/absl/flags/parse_test.cc b/third_party/abseil_cpp/absl/flags/parse_test.cc index e6a53ae6cb..d35a6e471a 100644 --- a/third_party/abseil_cpp/absl/flags/parse_test.cc +++ b/third_party/abseil_cpp/absl/flags/parse_test.cc @@ -28,7 +28,7 @@ #include "absl/flags/declare.h" #include "absl/flags/flag.h" #include "absl/flags/internal/parse.h" -#include "absl/flags/internal/registry.h" +#include "absl/flags/reflection.h" #include "absl/strings/str_cat.h" #include "absl/strings/string_view.h" #include "absl/strings/substitute.h" @@ -171,8 +171,8 @@ constexpr const char* const ff2_data[] = { // temporary directory location. This way we can test inclusion of one flagfile // from another flagfile. const char* GetFlagfileFlag(const std::vector<FlagfileData>& ffd, - std::string* flagfile_flag) { - *flagfile_flag = "--flagfile="; + std::string& flagfile_flag) { + flagfile_flag = "--flagfile="; absl::string_view separator; for (const auto& flagfile_data : ffd) { std::string flagfile_name = @@ -183,11 +183,11 @@ const char* GetFlagfileFlag(const std::vector<FlagfileData>& ffd, flagfile_out << absl::Substitute(line, GetTestTempDir()) << "\n"; } - absl::StrAppend(flagfile_flag, separator, flagfile_name); + absl::StrAppend(&flagfile_flag, separator, flagfile_name); separator = ","; } - return flagfile_flag->c_str(); + return flagfile_flag.c_str(); } } // namespace @@ -208,7 +208,7 @@ using testing::ElementsAreArray; class ParseTest : public testing::Test { private: - flags::FlagSaver flag_saver_; + absl::FlagSaver flag_saver_; }; // -------------------------------------------------------------------- @@ -588,14 +588,14 @@ TEST_F(ParseTest, TestSimpleValidFlagfile) { const char* in_args1[] = { "testbin", GetFlagfileFlag({{"parse_test.ff1", absl::MakeConstSpan(ff1_data)}}, - &flagfile_flag), + flagfile_flag), }; TestParse(in_args1, -1, 0.1, "q2w2 ", true); const char* in_args2[] = { "testbin", GetFlagfileFlag({{"parse_test.ff2", absl::MakeConstSpan(ff2_data)}}, - &flagfile_flag), + flagfile_flag), }; TestParse(in_args2, 100, 0.1, "q2w2 ", false); } @@ -609,7 +609,7 @@ TEST_F(ParseTest, TestValidMultiFlagfile) { "testbin", GetFlagfileFlag({{"parse_test.ff2", absl::MakeConstSpan(ff2_data)}, {"parse_test.ff1", absl::MakeConstSpan(ff1_data)}}, - &flagfile_flag), + flagfile_flag), }; TestParse(in_args1, -1, 0.1, "q2w2 ", true); } @@ -622,7 +622,7 @@ TEST_F(ParseTest, TestFlagfileMixedWithRegularFlags) { const char* in_args1[] = { "testbin", "--int_flag=3", GetFlagfileFlag({{"parse_test.ff1", absl::MakeConstSpan(ff1_data)}}, - &flagfile_flag), + flagfile_flag), "-double_flag=0.2"}; TestParse(in_args1, -1, 0.2, "q2w2 ", true); } @@ -637,10 +637,14 @@ TEST_F(ParseTest, TestFlagfileInFlagfile) { "--flagfile=$0/parse_test.ff2", }; + GetFlagfileFlag({{"parse_test.ff2", absl::MakeConstSpan(ff2_data)}, + {"parse_test.ff1", absl::MakeConstSpan(ff1_data)}}, + flagfile_flag); + const char* in_args1[] = { "testbin", GetFlagfileFlag({{"parse_test.ff3", absl::MakeConstSpan(ff3_data)}}, - &flagfile_flag), + flagfile_flag), }; TestParse(in_args1, 100, 0.1, "q2w2 ", false); } @@ -657,7 +661,7 @@ TEST_F(ParseDeathTest, TestInvalidFlagfiles) { const char* in_args1[] = { "testbin", GetFlagfileFlag({{"parse_test.ff4", - absl::MakeConstSpan(ff4_data)}}, &flagfile_flag), + absl::MakeConstSpan(ff4_data)}}, flagfile_flag), }; EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args1), "Unknown command line flag 'unknown_flag'"); @@ -669,7 +673,7 @@ TEST_F(ParseDeathTest, TestInvalidFlagfiles) { const char* in_args2[] = { "testbin", GetFlagfileFlag({{"parse_test.ff5", - absl::MakeConstSpan(ff5_data)}}, &flagfile_flag), + absl::MakeConstSpan(ff5_data)}}, flagfile_flag), }; EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args2), "Unknown command line flag 'int_flag 10'"); @@ -681,7 +685,7 @@ TEST_F(ParseDeathTest, TestInvalidFlagfiles) { const char* in_args3[] = { "testbin", GetFlagfileFlag({{"parse_test.ff6", absl::MakeConstSpan(ff6_data)}}, - &flagfile_flag), + flagfile_flag), }; EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args3), "Flagfile can't contain position arguments or --"); @@ -702,7 +706,7 @@ TEST_F(ParseDeathTest, TestInvalidFlagfiles) { const char* in_args5[] = { "testbin", GetFlagfileFlag({{"parse_test.ff7", absl::MakeConstSpan(ff7_data)}}, - &flagfile_flag), + flagfile_flag), }; EXPECT_DEATH_IF_SUPPORTED(InvokeParse(in_args5), "Unexpected line in the flagfile .*: \\*bin\\*"); diff --git a/third_party/abseil_cpp/absl/flags/internal/registry.cc b/third_party/abseil_cpp/absl/flags/reflection.cc index 3b941f04c2..5fc945f237 100644 --- a/third_party/abseil_cpp/absl/flags/internal/registry.cc +++ b/third_party/abseil_cpp/absl/flags/reflection.cc @@ -1,5 +1,5 @@ // -// Copyright 2019 The Abseil Authors. +// Copyright 2020 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. @@ -13,46 +13,34 @@ // See the License for the specific language governing permissions and // limitations under the License. -#include "absl/flags/internal/registry.h" +#include "absl/flags/reflection.h" #include <assert.h> -#include <stdlib.h> -#include <functional> #include <map> -#include <memory> #include <string> -#include <utility> -#include <vector> #include "absl/base/config.h" -#include "absl/base/internal/raw_logging.h" #include "absl/base/thread_annotations.h" -#include "absl/flags/internal/commandlineflag.h" +#include "absl/flags/commandlineflag.h" #include "absl/flags/internal/private_handle_accessor.h" +#include "absl/flags/internal/registry.h" #include "absl/flags/usage_config.h" #include "absl/strings/str_cat.h" #include "absl/strings/string_view.h" #include "absl/synchronization/mutex.h" -// -------------------------------------------------------------------- -// FlagRegistry implementation -// A FlagRegistry holds all flag objects indexed -// by their names so that if you know a flag's name you can access or -// set it. - namespace absl { ABSL_NAMESPACE_BEGIN namespace flags_internal { // -------------------------------------------------------------------- // FlagRegistry -// A FlagRegistry singleton object holds all flag objects indexed -// by their names so that if you know a flag's name (as a C -// string), you can access or set it. If the function is named -// FooLocked(), you must own the registry lock before calling -// the function; otherwise, you should *not* hold the lock, and -// the function will acquire it itself if needed. +// A FlagRegistry singleton object holds all flag objects indexed by their +// names so that if you know a flag's name, you can access or set it. If the +// function is named FooLocked(), you must own the registry lock before +// calling the function; otherwise, you should *not* hold the lock, and the +// function will acquire it itself if needed. // -------------------------------------------------------------------- class FlagRegistry { @@ -60,8 +48,8 @@ class FlagRegistry { FlagRegistry() = default; ~FlagRegistry() = default; - // Store a flag in this registry. Takes ownership of *flag. - void RegisterFlag(CommandLineFlag* flag); + // Store a flag in this registry. Takes ownership of *flag. + void RegisterFlag(CommandLineFlag& flag); void Lock() ABSL_EXCLUSIVE_LOCK_FUNCTION(lock_) { lock_.Lock(); } void Unlock() ABSL_UNLOCK_FUNCTION(lock_) { lock_.Unlock(); } @@ -74,12 +62,13 @@ class FlagRegistry { // found or not retired. Does not emit a warning. CommandLineFlag* FindRetiredFlagLocked(absl::string_view name); - static FlagRegistry* GlobalRegistry(); // returns a singleton registry + static FlagRegistry& GlobalRegistry(); // returns a singleton registry private: - friend class FlagSaverImpl; // reads all the flags in order to copy them + friend class flags_internal::FlagSaverImpl; // reads all the flags in order + // to copy them friend void ForEachFlagUnlocked( - std::function<void(CommandLineFlag*)> visitor); + std::function<void(CommandLineFlag&)> visitor); // The map from name to flag, for FindFlagLocked(). using FlagMap = std::map<absl::string_view, CommandLineFlag*>; @@ -94,64 +83,80 @@ class FlagRegistry { FlagRegistry& operator=(const FlagRegistry&); }; -FlagRegistry* FlagRegistry::GlobalRegistry() { - static FlagRegistry* global_registry = new FlagRegistry; - return global_registry; +CommandLineFlag* FlagRegistry::FindFlagLocked(absl::string_view name) { + FlagConstIterator i = flags_.find(name); + if (i == flags_.end()) { + return nullptr; + } + + if (i->second->IsRetired()) { + flags_internal::ReportUsageError( + absl::StrCat("Accessing retired flag '", name, "'"), false); + } + + return i->second; +} + +CommandLineFlag* FlagRegistry::FindRetiredFlagLocked(absl::string_view name) { + FlagConstIterator i = flags_.find(name); + if (i == flags_.end() || !i->second->IsRetired()) { + return nullptr; + } + + return i->second; } namespace { class FlagRegistryLock { public: - explicit FlagRegistryLock(FlagRegistry* fr) : fr_(fr) { fr_->Lock(); } - ~FlagRegistryLock() { fr_->Unlock(); } + explicit FlagRegistryLock(FlagRegistry& fr) : fr_(fr) { fr_.Lock(); } + ~FlagRegistryLock() { fr_.Unlock(); } private: - FlagRegistry* const fr_; + FlagRegistry& fr_; }; -void DestroyRetiredFlag(CommandLineFlag* flag); +void DestroyRetiredFlag(CommandLineFlag& flag); + } // namespace -void FlagRegistry::RegisterFlag(CommandLineFlag* flag) { - FlagRegistryLock registry_lock(this); +void FlagRegistry::RegisterFlag(CommandLineFlag& flag) { + FlagRegistryLock registry_lock(*this); std::pair<FlagIterator, bool> ins = - flags_.insert(FlagMap::value_type(flag->Name(), flag)); + flags_.insert(FlagMap::value_type(flag.Name(), &flag)); if (ins.second == false) { // means the name was already in the map - CommandLineFlag* old_flag = ins.first->second; - if (flag->IsRetired() != old_flag->IsRetired()) { + CommandLineFlag& old_flag = *ins.first->second; + if (flag.IsRetired() != old_flag.IsRetired()) { // All registrations must agree on the 'retired' flag. flags_internal::ReportUsageError( absl::StrCat( - "Retired flag '", flag->Name(), - "' was defined normally in file '", - (flag->IsRetired() ? old_flag->Filename() : flag->Filename()), - "'."), + "Retired flag '", flag.Name(), "' was defined normally in file '", + (flag.IsRetired() ? old_flag.Filename() : flag.Filename()), "'."), true); - } else if (flags_internal::PrivateHandleAccessor::TypeId(*flag) != - flags_internal::PrivateHandleAccessor::TypeId(*old_flag)) { + } else if (flags_internal::PrivateHandleAccessor::TypeId(flag) != + flags_internal::PrivateHandleAccessor::TypeId(old_flag)) { flags_internal::ReportUsageError( - absl::StrCat("Flag '", flag->Name(), + absl::StrCat("Flag '", flag.Name(), "' was defined more than once but with " "differing types. Defined in files '", - old_flag->Filename(), "' and '", flag->Filename(), "'."), + old_flag.Filename(), "' and '", flag.Filename(), "'."), true); - } else if (old_flag->IsRetired()) { + } else if (old_flag.IsRetired()) { // Retired flag can just be deleted. DestroyRetiredFlag(flag); return; - } else if (old_flag->Filename() != flag->Filename()) { + } else if (old_flag.Filename() != flag.Filename()) { flags_internal::ReportUsageError( - absl::StrCat("Flag '", flag->Name(), + absl::StrCat("Flag '", flag.Name(), "' was defined more than once (in files '", - old_flag->Filename(), "' and '", flag->Filename(), - "')."), + old_flag.Filename(), "' and '", flag.Filename(), "')."), true); } else { flags_internal::ReportUsageError( absl::StrCat( - "Something wrong with flag '", flag->Name(), "' in file '", - flag->Filename(), "'. One possibility: file '", flag->Filename(), + "Something wrong with flag '", flag.Name(), "' in file '", + flag.Filename(), "'. One possibility: file '", flag.Filename(), "' is being linked both statically and dynamically into this " "executable. e.g. some files listed as srcs to a test and also " "listed as srcs of some shared lib deps of the same test."), @@ -162,120 +167,31 @@ void FlagRegistry::RegisterFlag(CommandLineFlag* flag) { } } -CommandLineFlag* FlagRegistry::FindFlagLocked(absl::string_view name) { - FlagConstIterator i = flags_.find(name); - if (i == flags_.end()) { - return nullptr; - } - - if (i->second->IsRetired()) { - flags_internal::ReportUsageError( - absl::StrCat("Accessing retired flag '", name, "'"), false); - } - - return i->second; -} - -CommandLineFlag* FlagRegistry::FindRetiredFlagLocked(absl::string_view name) { - FlagConstIterator i = flags_.find(name); - if (i == flags_.end() || !i->second->IsRetired()) { - return nullptr; - } - - return i->second; -} - -// -------------------------------------------------------------------- -// FlagSaver -// FlagSaverImpl -// This class stores the states of all flags at construct time, -// and restores all flags to that state at destruct time. -// Its major implementation challenge is that it never modifies -// pointers in the 'main' registry, so global FLAG_* vars always -// point to the right place. -// -------------------------------------------------------------------- - -class FlagSaverImpl { - public: - FlagSaverImpl() = default; - FlagSaverImpl(const FlagSaverImpl&) = delete; - void operator=(const FlagSaverImpl&) = delete; - - // Saves the flag states from the flag registry into this object. - // It's an error to call this more than once. - void SaveFromRegistry() { - assert(backup_registry_.empty()); // call only once! - flags_internal::ForEachFlag([&](flags_internal::CommandLineFlag* flag) { - if (auto flag_state = - flags_internal::PrivateHandleAccessor::SaveState(flag)) { - backup_registry_.emplace_back(std::move(flag_state)); - } - }); - } - - // Restores the saved flag states into the flag registry. - void RestoreToRegistry() { - for (const auto& flag_state : backup_registry_) { - flag_state->Restore(); - } - } - - private: - std::vector<std::unique_ptr<flags_internal::FlagStateInterface>> - backup_registry_; -}; - -FlagSaver::FlagSaver() : impl_(new FlagSaverImpl) { impl_->SaveFromRegistry(); } - -void FlagSaver::Ignore() { - delete impl_; - impl_ = nullptr; -} - -FlagSaver::~FlagSaver() { - if (!impl_) return; - - impl_->RestoreToRegistry(); - delete impl_; -} - -// -------------------------------------------------------------------- - -CommandLineFlag* FindCommandLineFlag(absl::string_view name) { - if (name.empty()) return nullptr; - FlagRegistry* const registry = FlagRegistry::GlobalRegistry(); - FlagRegistryLock frl(registry); - - return registry->FindFlagLocked(name); -} - -CommandLineFlag* FindRetiredFlag(absl::string_view name) { - FlagRegistry* const registry = FlagRegistry::GlobalRegistry(); - FlagRegistryLock frl(registry); - - return registry->FindRetiredFlagLocked(name); +FlagRegistry& FlagRegistry::GlobalRegistry() { + static FlagRegistry* global_registry = new FlagRegistry; + return *global_registry; } // -------------------------------------------------------------------- -void ForEachFlagUnlocked(std::function<void(CommandLineFlag*)> visitor) { - FlagRegistry* const registry = FlagRegistry::GlobalRegistry(); - for (FlagRegistry::FlagConstIterator i = registry->flags_.begin(); - i != registry->flags_.end(); ++i) { - visitor(i->second); +void ForEachFlagUnlocked(std::function<void(CommandLineFlag&)> visitor) { + FlagRegistry& registry = FlagRegistry::GlobalRegistry(); + for (FlagRegistry::FlagConstIterator i = registry.flags_.begin(); + i != registry.flags_.end(); ++i) { + visitor(*i->second); } } -void ForEachFlag(std::function<void(CommandLineFlag*)> visitor) { - FlagRegistry* const registry = FlagRegistry::GlobalRegistry(); +void ForEachFlag(std::function<void(CommandLineFlag&)> visitor) { + FlagRegistry& registry = FlagRegistry::GlobalRegistry(); FlagRegistryLock frl(registry); ForEachFlagUnlocked(visitor); } // -------------------------------------------------------------------- -bool RegisterCommandLineFlag(CommandLineFlag* flag) { - FlagRegistry::GlobalRegistry()->RegisterFlag(flag); +bool RegisterCommandLineFlag(CommandLineFlag& flag) { + FlagRegistry::GlobalRegistry().RegisterFlag(flag); return true; } @@ -283,7 +199,7 @@ bool RegisterCommandLineFlag(CommandLineFlag* flag) { namespace { -class RetiredFlagObj final : public flags_internal::CommandLineFlag { +class RetiredFlagObj final : public CommandLineFlag { public: constexpr RetiredFlagObj(const char* name, FlagFastTypeId type_id) : name_(name), type_id_(type_id) {} @@ -306,7 +222,7 @@ class RetiredFlagObj final : public flags_internal::CommandLineFlag { } bool ParseFrom(absl::string_view, flags_internal::FlagSettingMode, - flags_internal::ValueSource, std::string*) override { + flags_internal::ValueSource, std::string&) override { return false; } @@ -319,32 +235,74 @@ class RetiredFlagObj final : public flags_internal::CommandLineFlag { const FlagFastTypeId type_id_; }; -void DestroyRetiredFlag(flags_internal::CommandLineFlag* flag) { - assert(flag->IsRetired()); - delete static_cast<RetiredFlagObj*>(flag); +void DestroyRetiredFlag(CommandLineFlag& flag) { + assert(flag.IsRetired()); + delete static_cast<RetiredFlagObj*>(&flag); } } // namespace bool Retire(const char* name, FlagFastTypeId type_id) { auto* flag = new flags_internal::RetiredFlagObj(name, type_id); - FlagRegistry::GlobalRegistry()->RegisterFlag(flag); + FlagRegistry::GlobalRegistry().RegisterFlag(*flag); return true; } // -------------------------------------------------------------------- -bool IsRetiredFlag(absl::string_view name, bool* type_is_bool) { - assert(!name.empty()); - CommandLineFlag* flag = flags_internal::FindRetiredFlag(name); - if (flag == nullptr) { - return false; +class FlagSaverImpl { + public: + FlagSaverImpl() = default; + FlagSaverImpl(const FlagSaverImpl&) = delete; + void operator=(const FlagSaverImpl&) = delete; + + // Saves the flag states from the flag registry into this object. + // It's an error to call this more than once. + void SaveFromRegistry() { + assert(backup_registry_.empty()); // call only once! + flags_internal::ForEachFlag([&](CommandLineFlag& flag) { + if (auto flag_state = + flags_internal::PrivateHandleAccessor::SaveState(flag)) { + backup_registry_.emplace_back(std::move(flag_state)); + } + }); } - assert(type_is_bool); - *type_is_bool = flag->IsOfType<bool>(); - return true; -} + + // Restores the saved flag states into the flag registry. + void RestoreToRegistry() { + for (const auto& flag_state : backup_registry_) { + flag_state->Restore(); + } + } + + private: + std::vector<std::unique_ptr<flags_internal::FlagStateInterface>> + backup_registry_; +}; } // namespace flags_internal + +FlagSaver::FlagSaver() : impl_(new flags_internal::FlagSaverImpl) { + impl_->SaveFromRegistry(); +} + +FlagSaver::~FlagSaver() { + if (!impl_) return; + + impl_->RestoreToRegistry(); + delete impl_; +} + +// -------------------------------------------------------------------- + +CommandLineFlag* FindCommandLineFlag(absl::string_view name) { + if (name.empty()) return nullptr; + flags_internal::FlagRegistry& registry = + flags_internal::FlagRegistry::GlobalRegistry(); + flags_internal::FlagRegistryLock frl(registry); + + return registry.FindFlagLocked(name); +} + ABSL_NAMESPACE_END } // namespace absl diff --git a/third_party/abseil_cpp/absl/flags/reflection.h b/third_party/abseil_cpp/absl/flags/reflection.h new file mode 100644 index 0000000000..045f9784e2 --- /dev/null +++ b/third_party/abseil_cpp/absl/flags/reflection.h @@ -0,0 +1,85 @@ +// +// Copyright 2020 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. +// +// ----------------------------------------------------------------------------- +// File: reflection.h +// ----------------------------------------------------------------------------- +// +// This file defines the routines to access and operate on an Abseil Flag's +// reflection handle. + +#ifndef ABSL_FLAGS_REFLECTION_H_ +#define ABSL_FLAGS_REFLECTION_H_ + +#include <string> + +#include "absl/base/config.h" +#include "absl/flags/commandlineflag.h" +#include "absl/flags/internal/commandlineflag.h" + +namespace absl { +ABSL_NAMESPACE_BEGIN +namespace flags_internal { +class FlagSaverImpl; +} // namespace flags_internal + +// FindCommandLineFlag() +// +// Returns the reflection handle of an Abseil flag of the specified name, or +// `nullptr` if not found. This function will emit a warning if the name of a +// 'retired' flag is specified. +CommandLineFlag* FindCommandLineFlag(absl::string_view name); + +//------------------------------------------------------------------------------ +// FlagSaver +//------------------------------------------------------------------------------ +// +// A FlagSaver object stores the state of flags in the scope where the FlagSaver +// is defined, allowing modification of those flags within that scope and +// automatic restoration of the flags to their previous state upon leaving the +// scope. +// +// A FlagSaver can be used within tests to temporarily change the test +// environment and restore the test case to its previous state. +// +// Example: +// +// void MyFunc() { +// absl::FlagSaver fs; +// ... +// absl::SetFlag(FLAGS_myFlag, otherValue); +// ... +// } // scope of FlagSaver left, flags return to previous state +// +// This class is thread-safe. + +class FlagSaver { + public: + FlagSaver(); + ~FlagSaver(); + + FlagSaver(const FlagSaver&) = delete; + void operator=(const FlagSaver&) = delete; + + private: + flags_internal::FlagSaverImpl* impl_; +}; + +//----------------------------------------------------------------------------- + +ABSL_NAMESPACE_END +} // namespace absl + +#endif // ABSL_FLAGS_REFLECTION_H_ diff --git a/third_party/abseil_cpp/absl/flags/reflection_test.cc b/third_party/abseil_cpp/absl/flags/reflection_test.cc new file mode 100644 index 0000000000..9781e597db --- /dev/null +++ b/third_party/abseil_cpp/absl/flags/reflection_test.cc @@ -0,0 +1,60 @@ +// +// 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. + +#include "absl/flags/reflection.h" + +#include <memory> +#include <string> + +#include "gtest/gtest.h" +#include "absl/flags/flag.h" +#include "absl/flags/internal/commandlineflag.h" +#include "absl/flags/marshalling.h" +#include "absl/memory/memory.h" + +ABSL_FLAG(int, int_flag, 1, "int_flag help"); +ABSL_FLAG(std::string, string_flag, "dflt", "string_flag help"); +ABSL_RETIRED_FLAG(bool, bool_retired_flag, false, "bool_retired_flag help"); + +namespace { + +namespace flags = absl::flags_internal; + +class ReflectionTest : public testing::Test { + protected: + void SetUp() override { flag_saver_ = absl::make_unique<absl::FlagSaver>(); } + void TearDown() override { flag_saver_.reset(); } + + private: + std::unique_ptr<absl::FlagSaver> flag_saver_; +}; + +// -------------------------------------------------------------------- + +TEST_F(ReflectionTest, TestFindCommandLineFlag) { + auto* handle = absl::FindCommandLineFlag("some_flag"); + EXPECT_EQ(handle, nullptr); + + handle = absl::FindCommandLineFlag("int_flag"); + EXPECT_NE(handle, nullptr); + + handle = absl::FindCommandLineFlag("string_flag"); + EXPECT_NE(handle, nullptr); + + handle = absl::FindCommandLineFlag("bool_retired_flag"); + EXPECT_NE(handle, nullptr); +} + +} // namespace diff --git a/third_party/abseil_cpp/absl/flags/usage_config.cc b/third_party/abseil_cpp/absl/flags/usage_config.cc index 0d21bce6a9..ae2f548a57 100644 --- a/third_party/abseil_cpp/absl/flags/usage_config.cc +++ b/third_party/abseil_cpp/absl/flags/usage_config.cc @@ -15,6 +15,7 @@ #include "absl/flags/usage_config.h" +#include <functional> #include <iostream> #include <string> |