58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef TOOLS_GN_VALUE_EXTRACTORS_H_
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#define TOOLS_GN_VALUE_EXTRACTORS_H_
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#include <string>
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#include <vector>
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#include "tools/gn/value.h"
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class Err;
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class Label;
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class SourceDir;
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class SourceFile;
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// Sets the error and returns false on failure.
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template<typename T, class Converter>
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bool ListValueExtractor(const Value& value, std::vector<T>* dest,
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Err* err,
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const Converter& converter) {
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if (!value.VerifyTypeIs(Value::LIST, err))
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return false;
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const std::vector<Value>& input_list = value.list_value();
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dest->resize(input_list.size());
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for (size_t i = 0; i < input_list.size(); i++) {
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if (!converter(input_list[i], &(*dest)[i], err))
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return false;
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}
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return true;
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}
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// On failure, returns false and sets the error.
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bool ExtractListOfStringValues(const Value& value,
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std::vector<std::string>* dest,
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Err* err);
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// Looks for a list of source files relative to a given current dir.
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bool ExtractListOfRelativeFiles(const Value& value,
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const SourceDir& current_dir,
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std::vector<SourceFile>* files,
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Err* err);
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// Looks for a list of source directories relative to a given current dir.
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bool ExtractListOfRelativeDirs(const Value& value,
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const SourceDir& current_dir,
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std::vector<SourceDir>* dest,
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Err* err);
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bool ExtractListOfLabels(const Value& value,
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const SourceDir& current_dir,
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const Label& current_toolchain,
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std::vector<Label>* dest,
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Err* err);
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#endif // TOOLS_GN_VALUE_EXTRACTORS_H_
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