5181aa6e02
Used include-what-you-use [1] to clean up cppgc API headers. The tool does somewhat work but requires some cleanup afterwards as it cannot nicely deal with `v8config.h` and the defines it generates. [1] https://github.com/include-what-you-use/include-what-you-use/ Bug: chromium:1056170 Change-Id: I7b03797c615f8e033510fc959bbdb792d8b7a4ee Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2907612 Reviewed-by: Omer Katz <omerkatz@chromium.org> Reviewed-by: Anton Bikineev <bikineev@chromium.org> Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#74693}
93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef INCLUDE_CPPGC_SOURCE_LOCATION_H_
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#define INCLUDE_CPPGC_SOURCE_LOCATION_H_
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#include <cstddef>
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#include <string>
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#include "v8config.h" // NOLINT(build/include_directory)
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#if defined(__has_builtin)
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#define CPPGC_SUPPORTS_SOURCE_LOCATION \
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(__has_builtin(__builtin_FUNCTION) && __has_builtin(__builtin_FILE) && \
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__has_builtin(__builtin_LINE)) // NOLINT
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#elif defined(V8_CC_GNU) && __GNUC__ >= 7
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#define CPPGC_SUPPORTS_SOURCE_LOCATION 1
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#elif defined(V8_CC_INTEL) && __ICC >= 1800
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#define CPPGC_SUPPORTS_SOURCE_LOCATION 1
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#else
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#define CPPGC_SUPPORTS_SOURCE_LOCATION 0
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#endif
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namespace cppgc {
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/**
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* Encapsulates source location information. Mimics C++20's
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* `std::source_location`.
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*/
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class V8_EXPORT SourceLocation final {
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public:
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/**
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* Construct source location information corresponding to the location of the
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* call site.
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*/
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#if CPPGC_SUPPORTS_SOURCE_LOCATION
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static constexpr SourceLocation Current(
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const char* function = __builtin_FUNCTION(),
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const char* file = __builtin_FILE(), size_t line = __builtin_LINE()) {
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return SourceLocation(function, file, line);
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}
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#else
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static constexpr SourceLocation Current() { return SourceLocation(); }
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#endif // CPPGC_SUPPORTS_SOURCE_LOCATION
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/**
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* Constructs unspecified source location information.
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*/
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constexpr SourceLocation() = default;
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/**
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* Returns the name of the function associated with the position represented
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* by this object, if any.
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*
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* \returns the function name as cstring.
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*/
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constexpr const char* Function() const { return function_; }
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/**
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* Returns the name of the current source file represented by this object.
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*
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* \returns the file name as cstring.
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*/
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constexpr const char* FileName() const { return file_; }
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/**
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* Returns the line number represented by this object.
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*
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* \returns the line number.
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*/
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constexpr size_t Line() const { return line_; }
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/**
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* Returns a human-readable string representing this object.
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*
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* \returns a human-readable string representing source location information.
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*/
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std::string ToString() const;
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private:
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constexpr SourceLocation(const char* function, const char* file, size_t line)
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: function_(function), file_(file), line_(line) {}
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const char* function_ = nullptr;
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const char* file_ = nullptr;
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size_t line_ = 0u;
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};
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} // namespace cppgc
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#endif // INCLUDE_CPPGC_SOURCE_LOCATION_H_
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