2 var call = require('../internals/function-call');
3 var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');
4 var anObject = require('../internals/an-object');
5 var toLength = require('../internals/to-length');
6 var toString = require('../internals/to-string');
7 var requireObjectCoercible = require('../internals/require-object-coercible');
8 var getMethod = require('../internals/get-method');
9 var advanceStringIndex = require('../internals/advance-string-index');
10 var regExpExec = require('../internals/regexp-exec-abstract');
13 fixRegExpWellKnownSymbolLogic('match', function (MATCH, nativeMatch, maybeCallNative) {
15 // `String.prototype.match` method
16 // https://tc39.es/ecma262/#sec-string.prototype.match
17 function match(regexp) {
18 var O = requireObjectCoercible(this);
19 var matcher = regexp == undefined ? undefined : getMethod(regexp, MATCH);
20 return matcher ? call(matcher, regexp, O) : new RegExp(regexp)[MATCH](toString(O));
22 // `RegExp.prototype[@@match]` method
23 // https://tc39.es/ecma262/#sec-regexp.prototype-@@match
25 var rx = anObject(this);
26 var S = toString(string);
27 var res = maybeCallNative(nativeMatch, rx, S);
29 if (res.done) return res.value;
31 if (!rx.global) return regExpExec(rx, S);
33 var fullUnicode = rx.unicode;
38 while ((result = regExpExec(rx, S)) !== null) {
39 var matchStr = toString(result[0]);
41 if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
44 return n === 0 ? null : A;