shaka-packager/tools/gn/scope_per_file_provider.h

60 lines
2.1 KiB
C++

// 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_SCOPE_PER_FILE_PROVIDER_H_
#define TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "tools/gn/scope.h"
#include "tools/gn/source_file.h"
// ProgrammaticProvider for a scope to provide it with per-file built-in
// variable support.
class ScopePerFileProvider : public Scope::ProgrammaticProvider {
public:
ScopePerFileProvider(Scope* scope, const SourceFile& source_file);
virtual ~ScopePerFileProvider();
// ProgrammaticProvider implementation.
virtual const Value* GetProgrammaticValue(
const base::StringPiece& ident) OVERRIDE;
private:
const Value* GetCurrentToolchain();
const Value* GetDefaultToolchain();
const Value* GetPythonPath();
const Value* GetRelativeBuildToSourceRootDir();
const Value* GetRelativeRootOutputDir();
const Value* GetRelativeRootGenDir();
const Value* GetRelativeTargetOutputDir();
const Value* GetRelativeTargetGenDir();
static std::string GetRootOutputDirWithNoLastSlash(const Settings* settings);
static std::string GetRootGenDirWithNoLastSlash(const Settings* settings);
std::string GetFileDirWithNoLastSlash() const;
std::string GetRelativeRootWithNoLastSlash() const;
// Inverts the given directory, returning it with no trailing slash. If the
// result would be empty, "." is returned to indicate the current dir.
static std::string InvertDirWithNoLastSlash(const SourceDir& dir);
SourceFile source_file_;
// All values are lazily created.
scoped_ptr<Value> current_toolchain_;
scoped_ptr<Value> default_toolchain_;
scoped_ptr<Value> python_path_;
scoped_ptr<Value> relative_build_to_source_root_dir_;
scoped_ptr<Value> relative_root_output_dir_;
scoped_ptr<Value> relative_root_gen_dir_;
scoped_ptr<Value> relative_target_output_dir_;
scoped_ptr<Value> relative_target_gen_dir_;
DISALLOW_COPY_AND_ASSIGN(ScopePerFileProvider);
};
#endif // TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_