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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 #include "tools/gn/config_values_extractors.h"
      6 
      7 namespace {
      8 
      9 struct StringWriter {
     10   void operator()(const std::string& s, std::ostream& out) const {
     11     out << " " << s;
     12   }
     13 };
     14 
     15 }  // namespace
     16 
     17 void RecursiveTargetConfigStringsToStream(
     18     const Target* target,
     19     const std::vector<std::string>& (ConfigValues::* getter)() const,
     20     std::ostream& out) {
     21   RecursiveTargetConfigToStream(target, getter, StringWriter(), out);
     22 }
     23