tools/gn/ninja_action_target_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_ACTION_TARGET_WRITER_H_
   6 #define TOOLS_GN_NINJA_ACTION_TARGET_WRITER_H_
   7
   8 #include <vector>
   9
  10 #include "base/gtest_prod_util.h"
  11 #include "base/macros.h"
  12 #include "tools/gn/ninja_target_writer.h"
  13
  14 class OutputFile;
  15
  16 // Writes a .ninja file for a action target type.
  17 class NinjaActionTargetWriter : public NinjaTargetWriter {
  18  public:
  19   NinjaActionTargetWriter(const Target* target, std::ostream& out);
  20   ~NinjaActionTargetWriter() override;
  21
  22   void Run() override;
  23
  24  private:
  25   FRIEND_TEST_ALL_PREFIXES(NinjaActionTargetWriter,
  26                            WriteOutputFilesForBuildLine);
  27   FRIEND_TEST_ALL_PREFIXES(NinjaActionTargetWriter,
  28                            WriteOutputFilesForBuildLineWithDepfile);
  29   FRIEND_TEST_ALL_PREFIXES(NinjaActionTargetWriter,
  30                            WriteArgsSubstitutions);
  31
  32   // Writes the Ninja rule for invoking the script.
  33   //
  34   // Returns the name of the custom rule generated. This will be based on the
  35   // target name, and will include the string "$unique_name" if there are
  36   // multiple inputs.
  37   std::string WriteRuleDefinition();
  38
  39   // Writes the rules for compiling each source, writing all output files
  40   // to the given vector.
  41   //
  42   // input_dep is a file expressing the depencies common to all build steps.
  43   // It will be a stamp file if there is more than one.
  44   void WriteSourceRules(const std::string& custom_rule_name,
  45                         const OutputFile& input_dep,
  46                         std::vector<OutputFile>* output_files);
  47
  48   // Writes the output files generated by the output template for the given
  49   // source file. This will start with a space and will not include a newline.
  50   // Appends the output files to the given vector.
  51   void WriteOutputFilesForBuildLine(const SourceFile& source,
  52                                     std::vector<OutputFile>* output_files);
  53
  54   void WriteDepfile(const SourceFile& source);
  55
  56   // Path output writer that doesn't do any escaping or quoting. It does,
  57   // however, convert slashes.  Used for
  58   // computing intermediate strings.
  59   PathOutput path_output_no_escaping_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(NinjaActionTargetWriter);
  62 };
  63
  64 #endif  // TOOLS_GN_NINJA_ACTION_TARGET_WRITER_H_