blob: e5ece40fae48f7d0097872a1dfba4d8efbde6275 [file] [log] [blame]
// 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.
#include <vector>
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "tools/gn/ninja_target_writer.h"
class FileTemplate;
class OutputFile;
// Writes a .ninja file for a action target type.
class NinjaActionTargetWriter : public NinjaTargetWriter {
NinjaActionTargetWriter(const Target* target,
const Toolchain* toolchain,
std::ostream& out);
virtual ~NinjaActionTargetWriter();
virtual void Run() OVERRIDE;
bool has_sources() const { return !target_->sources().empty(); }
// Writes the Ninja rule for invoking the script.
// Returns the name of the custom rule generated. This will be based on the
// target name, and will include the string "$unique_name" if there are
// multiple inputs.
std::string WriteRuleDefinition(const FileTemplate& args_template);
// Writes the rules for compiling each source, writing all output files
// to the given vector.
// implicit_deps is a precomputed string of all ninja files that are common
// to each build step, it starts with a "|" if it's nonempty.
void WriteSourceRules(const std::string& custom_rule_name,
const std::string& implicit_deps,
const FileTemplate& args_template,
std::vector<OutputFile>* output_files);
// Writes the Ninja variables that expand the substitutions required by the
// arguments for the given source file.
void WriteArgsSubstitutions(const SourceFile& source,
const FileTemplate& args_template);
// Writes the .stamp rule that names this target and collects all invocations
// of the script into one thing that other targets can depend on.
void WriteStamp(const std::vector<OutputFile>& output_files);
// Writes the output files generated by the output template for the given
// source file. This will start with a space and will not include a newline.
// Appends the output files to the given vector.
void WriteOutputFilesForBuildLine(const FileTemplate& output_template,
const SourceFile& source,
std::vector<OutputFile>* output_files);
void WriteDepfile(const SourceFile& source);
// Returns the FileTemplate for the depfile variable.
FileTemplate GetDepfileTemplate() const;
// Path output writer that doesn't do any escaping or quoting. It does,
// however, convert slashes. Used for
// computing intermediate strings.
PathOutput path_output_no_escaping_;