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// Copyright (c) 2013 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 TOOLS_GN_NINJA_BUILD_WRITER_H_
#define TOOLS_GN_NINJA_BUILD_WRITER_H_
#include <iosfwd>
#include <vector>
#include "tools/gn/path_output.h"
class BuildSettings;
class Err;
class Settings;
class Target;
class Toolchain;
// Generates the toplevel "build.ninja" file. This references the individual
// toolchain files and lists all input .gn files as dependencies of the
// build itself.
class NinjaBuildWriter {
public:
static bool RunAndWriteFile(
const BuildSettings* settings,
const std::vector<const Settings*>& all_settings,
const Toolchain* default_toolchain,
const std::vector<const Target*>& default_toolchain_targets,
Err* err);
private:
NinjaBuildWriter(const BuildSettings* settings,
const std::vector<const Settings*>& all_settings,
const Toolchain* default_toolchain,
const std::vector<const Target*>& default_toolchain_targets,
std::ostream& out,
std::ostream& dep_out);
~NinjaBuildWriter();
bool Run(Err* err);
void WriteNinjaRules();
void WriteLinkPool();
void WriteSubninjas();
bool WritePhonyAndAllRules(Err* err);
void WritePhonyRule(const Target* target, const OutputFile& target_file,
const std::string& phony_name);
const BuildSettings* build_settings_;
std::vector<const Settings*> all_settings_;
const Toolchain* default_toolchain_;
std::vector<const Target*> default_toolchain_targets_;
std::ostream& out_;
std::ostream& dep_out_;
PathOutput path_output_;
DISALLOW_COPY_AND_ASSIGN(NinjaBuildWriter);
};
#endif // TOOLS_GN_NINJA_BUILD_GENERATOR_H_
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