tools/shell-utils.h

// Copyright 2014 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
//     * Neither the name of Google Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Utility functions used by parser-shell.

#include "src/globals.h"

#include <stdio.h>

namespace v8 {
namespace internal {

enum Encoding {
  LATIN1,
  UTF8,
  UTF16
};

const byte* ReadFileAndRepeat(const char* name, int* size, int repeat) {
  FILE* file = fopen(name, "rb");
  *size = 0;
  if (file == NULL) return NULL;

  fseek(file, 0, SEEK_END);
  int file_size = static_cast<int>(ftell(file));
  rewind(file);

  *size = file_size * repeat;

  byte* chars = new byte[*size + 1];
  for (int i = 0; i < file_size;) {
    int read = static_cast<int>(fread(&chars[i], 1, file_size - i, file));
    i += read;
  }
  fclose(file);

  for (int i = file_size; i < *size; i++) {
    chars[i] = chars[i - file_size];
  }
  chars[*size] = 0;

  return chars;
}

}  // namespace internal
}  // namespace v8