tools/gn/ninja_build_writer.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef TOOLS_GN_NINJA_BUILD_WRITER_H_
   6 #define TOOLS_GN_NINJA_BUILD_WRITER_H_
   7
   8 #include <iosfwd>
   9 #include <vector>
  10
  11 #include "tools/gn/path_output.h"
  12
  13 class BuildSettings;
  14 class Err;
  15 class Settings;
  16 class Target;
  17 class Toolchain;
  18
  19 // Generates the toplevel "build.ninja" file. This references the individual
  20 // toolchain files and lists all input .gn files as dependencies of the
  21 // build itself.
  22 class NinjaBuildWriter {
  23  public:
  24   static bool RunAndWriteFile(
  25       const BuildSettings* settings,
  26       const std::vector<const Settings*>& all_settings,
  27       const Toolchain* default_toolchain,
  28       const std::vector<const Target*>& default_toolchain_targets,
  29       Err* err);
  30
  31  private:
  32   NinjaBuildWriter(const BuildSettings* settings,
  33                    const std::vector<const Settings*>& all_settings,
  34                    const Toolchain* default_toolchain,
  35                    const std::vector<const Target*>& default_toolchain_targets,
  36                    std::ostream& out,
  37                    std::ostream& dep_out);
  38   ~NinjaBuildWriter();
  39
  40   bool Run(Err* err);
  41
  42   void WriteNinjaRules();
  43   void WriteLinkPool();
  44   void WriteSubninjas();
  45   bool WritePhonyAndAllRules(Err* err);
  46
  47   void WritePhonyRule(const Target* target, const OutputFile& target_file,
  48                       const std::string& phony_name);
  49
  50   const BuildSettings* build_settings_;
  51   std::vector<const Settings*> all_settings_;
  52   const Toolchain* default_toolchain_;
  53   std::vector<const Target*> default_toolchain_targets_;
  54   std::ostream& out_;
  55   std::ostream& dep_out_;
  56   PathOutput path_output_;
  57
  58   DISALLOW_COPY_AND_ASSIGN(NinjaBuildWriter);
  59 };
  60
  61 #endif  // TOOLS_GN_NINJA_BUILD_WRITER_H_
  62