From ddf8e52a2918dd0ccec75d3e2426125fa3926724 Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Thu, 19 Sep 2019 09:27:34 -0700 Subject: Export of internal Abseil changes -- cf6037b985b629c253b8a87e4408c88a61baf89a by Abseil Team : Adds an example of using ABSL_DEPRECATED on a template. Without this, it's unclear where to add this annotation (e.g. before template <> or after it). PiperOrigin-RevId: 270057224 -- c53bc14dd683cc1e41c940a337001b42a0270eaf by Andy Getzendanner : Parser and unparser for command-line flags of type absl::LogSeverity. PiperOrigin-RevId: 269939999 -- d91174b02f3b213f0b26701d9d97c79f809e6fea by Abseil Team : Fix a typo. PiperOrigin-RevId: 269738777 GitOrigin-RevId: cf6037b985b629c253b8a87e4408c88a61baf89a Change-Id: I6cec3101014e4c77f4ff2edb4c91740982dbb459 --- absl/base/BUILD.bazel | 2 + absl/base/CMakeLists.txt | 2 + absl/base/log_severity.h | 17 ++++- absl/base/log_severity_test.cc | 158 ++++++++++++++++++++++++++++++++++++++++- absl/base/macros.h | 9 ++- 5 files changed, 183 insertions(+), 5 deletions(-) (limited to 'absl/base') diff --git a/absl/base/BUILD.bazel b/absl/base/BUILD.bazel index a2e510f..57caa06 100644 --- a/absl/base/BUILD.bazel +++ b/absl/base/BUILD.bazel @@ -575,6 +575,8 @@ cc_test( linkopts = ABSL_DEFAULT_LINKOPTS, deps = [ ":log_severity", + "//absl/flags:marshalling", + "//absl/strings", "@com_google_googletest//:gtest_main", ], ) diff --git a/absl/base/CMakeLists.txt b/absl/base/CMakeLists.txt index 15a92f5..2f11ef8 100644 --- a/absl/base/CMakeLists.txt +++ b/absl/base/CMakeLists.txt @@ -529,7 +529,9 @@ absl_cc_test( SRCS "log_severity_test.cc" DEPS + absl::flags_marshalling absl::log_severity + absl::strings gmock gtest_main ) diff --git a/absl/base/log_severity.h b/absl/base/log_severity.h index 5a1d557..f5dc7d2 100644 --- a/absl/base/log_severity.h +++ b/absl/base/log_severity.h @@ -25,6 +25,19 @@ namespace absl { // Four severity levels are defined. Logging APIs should terminate the program // when a message is logged at severity `kFatal`; the other levels have no // special semantics. +// +// Abseil flags may be defined with type `LogSeverity`. Dependency layering +// constraints require that the `AbslParseFlag` overload be declared and defined +// in the flags module rather than here. The `AbslUnparseFlag` overload is +// defined there too for consistency. +// +// The parser accepts arbitrary integers (as if the type were `int`). It also +// accepts each named enumerator, without regard for case, with or without the +// leading 'k'. For example: "kInfo", "INFO", and "info" all parse to the value +// `absl::LogSeverity::kInfo`. +// +// Unparsing a flag produces the same result as `absl::LogSeverityName()` for +// the standard levels and a base-ten integer otherwise. enum class LogSeverity : int { kInfo = 0, kWarning = 1, @@ -40,7 +53,7 @@ constexpr std::array LogSeverities() { } // Returns the all-caps string representation (e.g. "INFO") of the specified -// severity level if it is one of the normal levels and "UNKNOWN" otherwise. +// severity level if it is one of the standard levels and "UNKNOWN" otherwise. constexpr const char* LogSeverityName(absl::LogSeverity s) { return s == absl::LogSeverity::kInfo ? "INFO" @@ -59,7 +72,7 @@ constexpr absl::LogSeverity NormalizeLogSeverity(absl::LogSeverity s) { : s > absl::LogSeverity::kFatal ? absl::LogSeverity::kError : s; } constexpr absl::LogSeverity NormalizeLogSeverity(int s) { - return NormalizeLogSeverity(static_cast(s)); + return absl::NormalizeLogSeverity(static_cast(s)); } // The exact representation of a streamed `absl::LogSeverity` is deliberately diff --git a/absl/base/log_severity_test.cc b/absl/base/log_severity_test.cc index 1de2d10..1e3aafa 100644 --- a/absl/base/log_severity_test.cc +++ b/absl/base/log_severity_test.cc @@ -14,14 +14,25 @@ #include "absl/base/log_severity.h" +#include +#include +#include +#include #include #include +#include #include "gmock/gmock.h" #include "gtest/gtest.h" +#include "absl/flags/marshalling.h" +#include "absl/strings/str_cat.h" namespace { -using testing::Eq; +using ::testing::Eq; +using ::testing::IsFalse; +using ::testing::IsTrue; +using ::testing::TestWithParam; +using ::testing::Values; std::string StreamHelper(absl::LogSeverity value) { std::ostringstream stream; @@ -40,4 +51,149 @@ TEST(StreamTest, Works) { Eq("absl::LogSeverity(4)")); } +using ParseFlagFromOutOfRangeIntegerTest = TestWithParam; +INSTANTIATE_TEST_SUITE_P( + Instantiation, ParseFlagFromOutOfRangeIntegerTest, + Values(static_cast(std::numeric_limits::min()) - 1, + static_cast(std::numeric_limits::max()) + 1)); +TEST_P(ParseFlagFromOutOfRangeIntegerTest, ReturnsError) { + const std::string to_parse = absl::StrCat(GetParam()); + absl::LogSeverity value; + std::string error; + EXPECT_THAT(absl::ParseFlag(to_parse, &value, &error), IsFalse()) << value; +} + +using ParseFlagFromAlmostOutOfRangeIntegerTest = TestWithParam; +INSTANTIATE_TEST_SUITE_P(Instantiation, + ParseFlagFromAlmostOutOfRangeIntegerTest, + Values(std::numeric_limits::min(), + std::numeric_limits::max())); +TEST_P(ParseFlagFromAlmostOutOfRangeIntegerTest, YieldsExpectedValue) { + const auto expected = static_cast(GetParam()); + const std::string to_parse = absl::StrCat(GetParam()); + absl::LogSeverity value; + std::string error; + ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; + EXPECT_THAT(value, Eq(expected)); +} + +using ParseFlagFromIntegerMatchingEnumeratorTest = + TestWithParam>; +INSTANTIATE_TEST_SUITE_P( + Instantiation, ParseFlagFromIntegerMatchingEnumeratorTest, + Values(std::make_tuple("0", absl::LogSeverity::kInfo), + std::make_tuple(" 0", absl::LogSeverity::kInfo), + std::make_tuple("-0", absl::LogSeverity::kInfo), + std::make_tuple("+0", absl::LogSeverity::kInfo), + std::make_tuple("00", absl::LogSeverity::kInfo), + std::make_tuple("0 ", absl::LogSeverity::kInfo), + std::make_tuple("0x0", absl::LogSeverity::kInfo), + std::make_tuple("1", absl::LogSeverity::kWarning), + std::make_tuple("+1", absl::LogSeverity::kWarning), + std::make_tuple("2", absl::LogSeverity::kError), + std::make_tuple("3", absl::LogSeverity::kFatal))); +TEST_P(ParseFlagFromIntegerMatchingEnumeratorTest, YieldsExpectedValue) { + const absl::string_view to_parse = std::get<0>(GetParam()); + const absl::LogSeverity expected = std::get<1>(GetParam()); + absl::LogSeverity value; + std::string error; + ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; + EXPECT_THAT(value, Eq(expected)); +} + +using ParseFlagFromOtherIntegerTest = + TestWithParam>; +INSTANTIATE_TEST_SUITE_P(Instantiation, ParseFlagFromOtherIntegerTest, + Values(std::make_tuple("-1", -1), + std::make_tuple("4", 4), + std::make_tuple("010", 10), + std::make_tuple("0x10", 16))); +TEST_P(ParseFlagFromOtherIntegerTest, YieldsExpectedValue) { + const absl::string_view to_parse = std::get<0>(GetParam()); + const auto expected = static_cast(std::get<1>(GetParam())); + absl::LogSeverity value; + std::string error; + ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; + EXPECT_THAT(value, Eq(expected)); +} + +using ParseFlagFromEnumeratorTest = + TestWithParam>; +INSTANTIATE_TEST_SUITE_P( + Instantiation, ParseFlagFromEnumeratorTest, + Values(std::make_tuple("INFO", absl::LogSeverity::kInfo), + std::make_tuple("info", absl::LogSeverity::kInfo), + std::make_tuple("kInfo", absl::LogSeverity::kInfo), + std::make_tuple("iNfO", absl::LogSeverity::kInfo), + std::make_tuple("kInFo", absl::LogSeverity::kInfo), + std::make_tuple("WARNING", absl::LogSeverity::kWarning), + std::make_tuple("warning", absl::LogSeverity::kWarning), + std::make_tuple("kWarning", absl::LogSeverity::kWarning), + std::make_tuple("WaRnInG", absl::LogSeverity::kWarning), + std::make_tuple("KwArNiNg", absl::LogSeverity::kWarning), + std::make_tuple("ERROR", absl::LogSeverity::kError), + std::make_tuple("error", absl::LogSeverity::kError), + std::make_tuple("kError", absl::LogSeverity::kError), + std::make_tuple("eRrOr", absl::LogSeverity::kError), + std::make_tuple("kErRoR", absl::LogSeverity::kError), + std::make_tuple("FATAL", absl::LogSeverity::kFatal), + std::make_tuple("fatal", absl::LogSeverity::kFatal), + std::make_tuple("kFatal", absl::LogSeverity::kFatal), + std::make_tuple("FaTaL", absl::LogSeverity::kFatal), + std::make_tuple("KfAtAl", absl::LogSeverity::kFatal))); +TEST_P(ParseFlagFromEnumeratorTest, YieldsExpectedValue) { + const absl::string_view to_parse = std::get<0>(GetParam()); + const absl::LogSeverity expected = std::get<1>(GetParam()); + absl::LogSeverity value; + std::string error; + ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; + EXPECT_THAT(value, Eq(expected)); +} + +using ParseFlagFromGarbageTest = TestWithParam; +INSTANTIATE_TEST_SUITE_P(Instantiation, ParseFlagFromGarbageTest, + Values("", "\0", " ", "garbage", "kkinfo", "I")); +TEST_P(ParseFlagFromGarbageTest, ReturnsError) { + const absl::string_view to_parse = GetParam(); + absl::LogSeverity value; + std::string error; + EXPECT_THAT(absl::ParseFlag(to_parse, &value, &error), IsFalse()) << value; +} + +using UnparseFlagToEnumeratorTest = + TestWithParam>; +INSTANTIATE_TEST_SUITE_P( + Instantiation, UnparseFlagToEnumeratorTest, + Values(std::make_tuple(absl::LogSeverity::kInfo, "INFO"), + std::make_tuple(absl::LogSeverity::kWarning, "WARNING"), + std::make_tuple(absl::LogSeverity::kError, "ERROR"), + std::make_tuple(absl::LogSeverity::kFatal, "FATAL"))); +TEST_P(UnparseFlagToEnumeratorTest, ReturnsExpectedValueAndRoundTrips) { + const absl::LogSeverity to_unparse = std::get<0>(GetParam()); + const absl::string_view expected = std::get<1>(GetParam()); + const std::string stringified_value = absl::UnparseFlag(to_unparse); + EXPECT_THAT(stringified_value, Eq(expected)); + absl::LogSeverity reparsed_value; + std::string error; + EXPECT_THAT(absl::ParseFlag(stringified_value, &reparsed_value, &error), + IsTrue()); + EXPECT_THAT(reparsed_value, Eq(to_unparse)); +} + +using UnparseFlagToOtherIntegerTest = TestWithParam; +INSTANTIATE_TEST_SUITE_P(Instantiation, UnparseFlagToOtherIntegerTest, + Values(std::numeric_limits::min(), -1, 4, + std::numeric_limits::max())); +TEST_P(UnparseFlagToOtherIntegerTest, ReturnsExpectedValueAndRoundTrips) { + const absl::LogSeverity to_unparse = + static_cast(GetParam()); + const std::string expected = absl::StrCat(GetParam()); + const std::string stringified_value = absl::UnparseFlag(to_unparse); + EXPECT_THAT(stringified_value, Eq(expected)); + absl::LogSeverity reparsed_value; + std::string error; + EXPECT_THAT(absl::ParseFlag(stringified_value, &reparsed_value, &error), + IsTrue()); + EXPECT_THAT(reparsed_value, Eq(to_unparse)); +} } // namespace diff --git a/absl/base/macros.h b/absl/base/macros.h index 606a90a..d481288 100644 --- a/absl/base/macros.h +++ b/absl/base/macros.h @@ -137,10 +137,15 @@ enum LinkerInitialized { // declarations. The macro argument is used as a custom diagnostic message (e.g. // suggestion of a better alternative). // -// Example: +// Examples: // // class ABSL_DEPRECATED("Use Bar instead") Foo {...}; -// ABSL_DEPRECATED("Use Baz instead") void Bar() {...} +// +// ABSL_DEPRECATED("Use Baz() instead") void Bar() {...} +// +// template +// ABSL_DEPRECATED("Use DoThat() instead") +// void DoThis(); // // Every usage of a deprecated entity will trigger a warning when compiled with // clang's `-Wdeprecated-declarations` option. This option is turned off by -- cgit v1.2.3