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// Copyright (c) 2012 The Chromium 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 PLATFORM_BASE_LOCATION_H_
#define PLATFORM_BASE_LOCATION_H_
#include <stddef.h>
#include <cassert>
#include <functional>
#include <string>
namespace openscreen {
// NOTE: lifted from Chromium's base Location implementation, forked to work
// with our base library.
// Instances of the location class include basic information about a position
// in program source, for example the place where an object was constructed.
class Location {
public:
Location();
Location(const Location&);
Location(Location&&) noexcept;
// Initializes the program counter
explicit Location(const void* program_counter);
Location& operator=(const Location& other);
Location& operator=(Location&& other);
// Comparator for hash map insertion. The program counter should uniquely
// identify a location.
bool operator==(const Location& other) const {
return program_counter_ == other.program_counter_;
}
// The address of the code generating this Location object. Should always be
// valid except for default initialized Location objects, which will be
// nullptr.
const void* program_counter() const { return program_counter_; }
// Converts to the most user-readable form possible. This will return
// "pc:<hex address>".
std::string ToString() const;
static Location CreateFromHere();
private:
const void* program_counter_ = nullptr;
};
const void* GetProgramCounter();
#define CURRENT_LOCATION ::openscreen::Location::CreateFromHere()
} // namespace openscreen
#endif // PLATFORM_BASE_LOCATION_H_
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