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   1 /* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
   2  * Use of this file is governed by the BSD 3-clause license that
   3  * can be found in the LICENSE.txt file in the project root.
   4  */
   5
   6 #include "support/StringUtils.h"
   7
   8 #include "ANTLRFileStream.h"
   9
  10 using namespace antlr4;
  11
  12 void ANTLRFileStream::loadFromFile(const std::string &fileName) {
  13   _fileName = fileName;
  14   if (_fileName.empty()) {
  15     return;
  16   }
  17
  18 #ifdef _MSC_VER
  19   std::ifstream stream(antlrcpp::s2ws(fileName), std::ios::binary);
  20 #else
  21   std::ifstream stream(fileName, std::ios::binary);
  22 #endif
  23
  24   ANTLRInputStream::load(stream);
  25 }
  26
  27 std::string ANTLRFileStream::getSourceName() const {
  28   return _fileName;
  29 }