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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef INCLUDE_CPPGC_SOURCE_LOCATION_H_
#define INCLUDE_CPPGC_SOURCE_LOCATION_H_
#include <string>
#include "v8config.h" // NOLINT(build/include_directory)
#if defined(__has_builtin)
#define CPPGC_SUPPORTS_SOURCE_LOCATION \
(__has_builtin(__builtin_FUNCTION) && __has_builtin(__builtin_FILE) && \
__has_builtin(__builtin_LINE)) // NOLINT
#elif defined(V8_CC_GNU) && __GNUC__ >= 7
#define CPPGC_SUPPORTS_SOURCE_LOCATION 1
#elif defined(V8_CC_INTEL) && __ICC >= 1800
#define CPPGC_SUPPORTS_SOURCE_LOCATION 1
#else
#define CPPGC_SUPPORTS_SOURCE_LOCATION 0
#endif
namespace cppgc {
// Encapsulates source location information. Mimics C++20's
// std::source_location.
class V8_EXPORT SourceLocation final {
public:
#if CPPGC_SUPPORTS_SOURCE_LOCATION
static constexpr SourceLocation Current(
const char* function = __builtin_FUNCTION(),
const char* file = __builtin_FILE(), size_t line = __builtin_LINE()) {
return SourceLocation(function, file, line);
}
#else
static constexpr SourceLocation Current() { return SourceLocation(); }
#endif // CPPGC_SUPPORTS_SOURCE_LOCATION
constexpr SourceLocation() = default;
constexpr const char* Function() const { return function_; }
constexpr const char* FileName() const { return file_; }
constexpr size_t Line() const { return line_; }
std::string ToString() const;
private:
constexpr SourceLocation(const char* function, const char* file, size_t line)
: function_(function), file_(file), line_(line) {}
const char* function_ = nullptr;
const char* file_ = nullptr;
size_t line_ = 0u;
};
} // namespace cppgc
#endif // INCLUDE_CPPGC_SOURCE_LOCATION_H_