parse.js 1.3 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = void 0;
  6. var _validate = _interopRequireDefault(require("./validate.js"));
  7. function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
  8. function parse(uuid) {
  9. if (!(0, _validate.default)(uuid)) {
  10. throw TypeError('Invalid UUID');
  11. }
  12. let v;
  13. const arr = new Uint8Array(16);
  14. // Parse ########-....-....-....-............
  15. arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24;
  16. arr[1] = v >>> 16 & 0xff;
  17. arr[2] = v >>> 8 & 0xff;
  18. arr[3] = v & 0xff;
  19. // Parse ........-####-....-....-............
  20. arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8;
  21. arr[5] = v & 0xff;
  22. // Parse ........-....-####-....-............
  23. arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8;
  24. arr[7] = v & 0xff;
  25. // Parse ........-....-....-####-............
  26. arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8;
  27. arr[9] = v & 0xff;
  28. // Parse ........-....-....-....-############
  29. // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
  30. arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff;
  31. arr[11] = v / 0x100000000 & 0xff;
  32. arr[12] = v >>> 24 & 0xff;
  33. arr[13] = v >>> 16 & 0xff;
  34. arr[14] = v >>> 8 & 0xff;
  35. arr[15] = v & 0xff;
  36. return arr;
  37. }
  38. var _default = exports.default = parse;