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| 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_VALUE_EXTRACTORS_H_ |
| 6 #define TOOLS_GN_VALUE_EXTRACTORS_H_ |
| 7 |
| 8 #include <string> |
| 9 #include <vector> |
| 10 |
| 11 #include "tools/gn/value.h" |
| 12 |
| 13 class Err; |
| 14 class Label; |
| 15 class SourceDir; |
| 16 class SourceFile; |
| 17 |
| 18 // Sets the error and returns false on failure. |
| 19 template<typename T, class Converter> |
| 20 bool ListValueExtractor(const Value& value, std::vector<T>* dest, |
| 21 Err* err, |
| 22 const Converter& converter) { |
| 23 if (!value.VerifyTypeIs(Value::LIST, err)) |
| 24 return false; |
| 25 const std::vector<Value>& input_list = value.list_value(); |
| 26 dest->resize(input_list.size()); |
| 27 for (size_t i = 0; i < input_list.size(); i++) { |
| 28 if (!converter(input_list[i], &(*dest)[i], err)) |
| 29 return false; |
| 30 } |
| 31 return true; |
| 32 } |
| 33 |
| 34 // On failure, returns false and sets the error. |
| 35 bool ExtractListOfStringValues(const Value& value, |
| 36 std::vector<std::string>* dest, |
| 37 Err* err); |
| 38 |
| 39 // Looks for a list of source files relative to a given current dir. |
| 40 bool ExtractListOfRelativeFiles(const Value& value, |
| 41 const SourceDir& current_dir, |
| 42 std::vector<SourceFile>* files, |
| 43 Err* err); |
| 44 |
| 45 // Looks for a list of source directories relative to a given current dir. |
| 46 bool ExtractListOfRelativeDirs(const Value& value, |
| 47 const SourceDir& current_dir, |
| 48 std::vector<SourceDir>* dest, |
| 49 Err* err); |
| 50 |
| 51 bool ExtractListOfLabels(const Value& value, |
| 52 const SourceDir& current_dir, |
| 53 const Label& current_toolchain, |
| 54 std::vector<Label>* dest, |
| 55 Err* err); |
| 56 |
| 57 #endif // TOOLS_GN_VALUE_EXTRACTORS_H_ |
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