tools/gn/output_stream.h

   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_OUTPUT_STREAM_H_
   6 #define TOOLS_GN_OUTPUT_STREAM_H_
   7
   8 class OutputStream {
   9  public:
  10
  11
  12
  13   OutputStream& WriteBuffer(const char* buf, size_t len);
  14   OutputStream& WriteInt(int i);
  15
  16   // Write a literal.
  17   // This template expansion prevents having to look for nulls.
  18   template<size_t size> OutputStream& Write(const char (&buf)[size]) {
  19     return WriteBuffer(buf, size);
  20   }
  21
  22   // Write a literal string.
  23   OutputStream& Write(const std::string& str) {
  24     return WriteBuffer(str.c_str(), str.size());
  25   }
  26
  27   // Quotes if necessary, and does necessary escaping. If more than one
  28   // input is provided, the results will be concatenated together (useful
  29   // for constructing paths without a temporary buffer).
  30   OutputStream& WritePath(const std::string& s);
  31   OutputStream& WritePath(const std::string& s0,
  32                           const std::string& s1);
  33   OutputStream& WritePath(const std::string& s0,
  34                           const std::string& s1,
  35                           const std::string& s2);
  36
  37   OutputStream& EndLine() {
  38     return WriteBuffer("\n", 1);
  39   }
  40 };
  41
  42 #endif  // TOOLS_GN_OUTPUT_STREAM_H_