wrapRegExp.js 2.3 KB

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  1. var _Object$create = require("../core-js/object/create");
  2. var _Object$keys = require("../core-js/object/keys");
  3. var _reduceInstanceProperty = require("../core-js/instance/reduce");
  4. var _typeof = require("../helpers/typeof");
  5. var _Symbol$replace = require("../core-js/symbol/replace");
  6. var _WeakMap = require("../core-js/weak-map");
  7. var wrapNativeSuper = require("./wrapNativeSuper");
  8. var getPrototypeOf = require("./getPrototypeOf");
  9. var possibleConstructorReturn = require("./possibleConstructorReturn");
  10. var inherits = require("./inherits");
  11. function _wrapRegExp(re, groups) {
  12. module.exports = _wrapRegExp = function _wrapRegExp(re, groups) {
  13. return new BabelRegExp(re, undefined, groups);
  14. };
  15. var _RegExp = wrapNativeSuper(RegExp);
  16. var _super = RegExp.prototype;
  17. var _groups = new _WeakMap();
  18. function BabelRegExp(re, flags, groups) {
  19. var _this = _RegExp.call(this, re, flags);
  20. _groups.set(_this, groups || _groups.get(re));
  21. return _this;
  22. }
  23. inherits(BabelRegExp, _RegExp);
  24. BabelRegExp.prototype.exec = function (str) {
  25. var result = _super.exec.call(this, str);
  26. if (result) result.groups = buildGroups(result, this);
  27. return result;
  28. };
  29. BabelRegExp.prototype[_Symbol$replace] = function (str, substitution) {
  30. if (typeof substitution === "string") {
  31. var groups = _groups.get(this);
  32. return _super[_Symbol$replace].call(this, str, substitution.replace(/\$<([^>]+)>/g, function (_, name) {
  33. return "$" + groups[name];
  34. }));
  35. } else if (typeof substitution === "function") {
  36. var _this = this;
  37. return _super[_Symbol$replace].call(this, str, function () {
  38. var args = [];
  39. args.push.apply(args, arguments);
  40. if (_typeof(args[args.length - 1]) !== "object") {
  41. args.push(buildGroups(args, _this));
  42. }
  43. return substitution.apply(this, args);
  44. });
  45. } else {
  46. return _super[_Symbol$replace].call(this, str, substitution);
  47. }
  48. };
  49. function buildGroups(result, re) {
  50. var _context;
  51. var g = _groups.get(re);
  52. return _reduceInstanceProperty(_context = _Object$keys(g)).call(_context, function (groups, name) {
  53. groups[name] = result[g[name]];
  54. return groups;
  55. }, _Object$create(null));
  56. }
  57. return _wrapRegExp.apply(this, arguments);
  58. }
  59. module.exports = _wrapRegExp;