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 | /* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */
#pragma once
#include "ANTLRInputStream.h"
namespace antlr4 {
  /// This is an ANTLRInputStream that is loaded from a file all at once
  /// when you construct the object (or call load()).
  // TODO: this class needs testing.
  class ANTLR4CPP_PUBLIC ANTLRFileStream : public ANTLRInputStream {
  public:
    ANTLRFileStream() = default;
    ANTLRFileStream(const std::string &) = delete;
    ANTLRFileStream(const char *data, size_t length) = delete;
    ANTLRFileStream(std::istream &stream) = delete;
    // Assumes a file name encoded in UTF-8 and file content in the same encoding (with or w/o BOM).
    virtual void loadFromFile(const std::string &fileName);
    virtual std::string getSourceName() const override;
  private:
    std::string _fileName; // UTF-8 encoded file name.
  };
} // namespace antlr4
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