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73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// Copyright (c) 2013 The Chromium 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 TOOLS_GN_NINJA_BUILD_WRITER_H_
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#define TOOLS_GN_NINJA_BUILD_WRITER_H_
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#include <iosfwd>
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#include <map>
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#include <vector>
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#include "base/macros.h"
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#include "tools/gn/path_output.h"
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class Builder;
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class BuildSettings;
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class Err;
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class Settings;
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class Target;
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class Toolchain;
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// Generates the toplevel "build.ninja" file. This references the individual
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// toolchain files and lists all input .gn files as dependencies of the
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// build itself.
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class NinjaBuildWriter {
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public:
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NinjaBuildWriter(const BuildSettings* settings,
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const std::unordered_map<const Settings*, const Toolchain*>&
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used_toolchains,
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const Toolchain* default_toolchain,
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const std::vector<const Target*>& default_toolchain_targets,
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std::ostream& out,
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std::ostream& dep_out);
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~NinjaBuildWriter();
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// The design of this class is that this static factory function takes the
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// Builder, extracts the relevant information, and passes it to the class
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// constructor. The class itself doesn't depend on the Builder at all which
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// makes testing much easier (tests integrating various functions along with
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// the Builder get very complicated).
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static bool RunAndWriteFile(
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const BuildSettings* settings,
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const Builder& builder,
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Err* err);
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bool Run(Err* err);
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private:
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void WriteNinjaRules();
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void WriteAllPools();
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bool WriteSubninjas(Err* err);
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bool WritePhonyAndAllRules(Err* err);
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void WritePhonyRule(const Target* target, const std::string& phony_name);
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const BuildSettings* build_settings_;
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const std::unordered_map<const Settings*, const Toolchain*>& used_toolchains_;
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const Toolchain* default_toolchain_;
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const std::vector<const Target*>& default_toolchain_targets_;
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std::ostream& out_;
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std::ostream& dep_out_;
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PathOutput path_output_;
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DISALLOW_COPY_AND_ASSIGN(NinjaBuildWriter);
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};
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extern const char kNinjaRules_Help[];
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#endif // TOOLS_GN_NINJA_BUILD_WRITER_H_
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