shell-utils.h 2.4 KB

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  1. // Copyright 2014 the V8 project authors. All rights reserved.
  2. // Redistribution and use in source and binary forms, with or without
  3. // modification, are permitted provided that the following conditions are
  4. // met:
  5. //
  6. // * Redistributions of source code must retain the above copyright
  7. // notice, this list of conditions and the following disclaimer.
  8. // * Redistributions in binary form must reproduce the above
  9. // copyright notice, this list of conditions and the following
  10. // disclaimer in the documentation and/or other materials provided
  11. // with the distribution.
  12. // * Neither the name of Google Inc. nor the names of its
  13. // contributors may be used to endorse or promote products derived
  14. // from this software without specific prior written permission.
  15. //
  16. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27. // Utility functions used by parser-shell.
  28. #include "src/common/globals.h"
  29. #include <stdio.h>
  30. namespace v8 {
  31. namespace internal {
  32. enum Encoding {
  33. LATIN1,
  34. UTF8,
  35. UTF16
  36. };
  37. const byte* ReadFileAndRepeat(const char* name, int* size, int repeat) {
  38. FILE* file = fopen(name, "rb");
  39. *size = 0;
  40. if (file == NULL) return NULL;
  41. fseek(file, 0, SEEK_END);
  42. int file_size = static_cast<int>(ftell(file));
  43. rewind(file);
  44. *size = file_size * repeat;
  45. byte* chars = new byte[*size + 1];
  46. for (int i = 0; i < file_size;) {
  47. int read = static_cast<int>(fread(&chars[i], 1, file_size - i, file));
  48. i += read;
  49. }
  50. fclose(file);
  51. for (int i = file_size; i < *size; i++) {
  52. chars[i] = chars[i - file_size];
  53. }
  54. chars[*size] = 0;
  55. return chars;
  56. }
  57. } // namespace internal
  58. } // namespace v8