| // 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_VALUE_EXTRACTORS_H_ |
| #define TOOLS_GN_VALUE_EXTRACTORS_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "tools/gn/value.h" |
| |
| class Err; |
| class Label; |
| class SourceDir; |
| class SourceFile; |
| |
| // Sets the error and returns false on failure. |
| template<typename T, class Converter> |
| bool ListValueExtractor(const Value& value, std::vector<T>* dest, |
| Err* err, |
| const Converter& converter) { |
| if (!value.VerifyTypeIs(Value::LIST, err)) |
| return false; |
| const std::vector<Value>& input_list = value.list_value(); |
| dest->resize(input_list.size()); |
| for (size_t i = 0; i < input_list.size(); i++) { |
| if (!converter(input_list[i], &(*dest)[i], err)) |
| return false; |
| } |
| return true; |
| } |
| |
| // On failure, returns false and sets the error. |
| bool ExtractListOfStringValues(const Value& value, |
| std::vector<std::string>* dest, |
| Err* err); |
| |
| // Looks for a list of source files relative to a given current dir. |
| bool ExtractListOfRelativeFiles(const Value& value, |
| const SourceDir& current_dir, |
| std::vector<SourceFile>* files, |
| Err* err); |
| |
| // Looks for a list of source directories relative to a given current dir. |
| bool ExtractListOfRelativeDirs(const Value& value, |
| const SourceDir& current_dir, |
| std::vector<SourceDir>* dest, |
| Err* err); |
| |
| bool ExtractListOfLabels(const Value& value, |
| const SourceDir& current_dir, |
| const Label& current_toolchain, |
| std::vector<Label>* dest, |
| Err* err); |
| |
| #endif // TOOLS_GN_VALUE_EXTRACTORS_H_ |