'use strict';
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var $ = require('../internals/export');
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var createIteratorConstructor = require('../internals/create-iterator-constructor');
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var requireObjectCoercible = require('../internals/require-object-coercible');
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var toLength = require('../internals/to-length');
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var aFunction = require('../internals/a-function');
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var anObject = require('../internals/an-object');
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var classof = require('../internals/classof-raw');
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var isRegExp = require('../internals/is-regexp');
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var getRegExpFlags = require('../internals/regexp-flags');
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var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
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var fails = require('../internals/fails');
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var wellKnownSymbol = require('../internals/well-known-symbol');
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var speciesConstructor = require('../internals/species-constructor');
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var advanceStringIndex = require('../internals/advance-string-index');
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var InternalStateModule = require('../internals/internal-state');
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var IS_PURE = require('../internals/is-pure');
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var MATCH_ALL = wellKnownSymbol('matchAll');
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var REGEXP_STRING = 'RegExp String';
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var REGEXP_STRING_ITERATOR = REGEXP_STRING + ' Iterator';
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var setInternalState = InternalStateModule.set;
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var getInternalState = InternalStateModule.getterFor(REGEXP_STRING_ITERATOR);
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var RegExpPrototype = RegExp.prototype;
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var regExpBuiltinExec = RegExpPrototype.exec;
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var nativeMatchAll = ''.matchAll;
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var WORKS_WITH_NON_GLOBAL_REGEX = !!nativeMatchAll && !fails(function () {
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'a'.matchAll(/./);
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});
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var regExpExec = function (R, S) {
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var exec = R.exec;
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var result;
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if (typeof exec == 'function') {
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result = exec.call(R, S);
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if (typeof result != 'object') throw TypeError('Incorrect exec result');
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return result;
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} return regExpBuiltinExec.call(R, S);
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};
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// eslint-disable-next-line max-len
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var $RegExpStringIterator = createIteratorConstructor(function RegExpStringIterator(regexp, string, global, fullUnicode) {
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setInternalState(this, {
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type: REGEXP_STRING_ITERATOR,
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regexp: regexp,
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string: string,
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global: global,
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unicode: fullUnicode,
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done: false
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});
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}, REGEXP_STRING, function next() {
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var state = getInternalState(this);
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if (state.done) return { value: undefined, done: true };
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var R = state.regexp;
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var S = state.string;
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var match = regExpExec(R, S);
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if (match === null) return { value: undefined, done: state.done = true };
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if (state.global) {
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if (String(match[0]) == '') R.lastIndex = advanceStringIndex(S, toLength(R.lastIndex), state.unicode);
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return { value: match, done: false };
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}
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state.done = true;
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return { value: match, done: false };
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});
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var $matchAll = function (string) {
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var R = anObject(this);
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var S = String(string);
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var C, flagsValue, flags, matcher, global, fullUnicode;
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C = speciesConstructor(R, RegExp);
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flagsValue = R.flags;
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if (flagsValue === undefined && R instanceof RegExp && !('flags' in RegExpPrototype)) {
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flagsValue = getRegExpFlags.call(R);
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}
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flags = flagsValue === undefined ? '' : String(flagsValue);
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matcher = new C(C === RegExp ? R.source : R, flags);
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global = !!~flags.indexOf('g');
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fullUnicode = !!~flags.indexOf('u');
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matcher.lastIndex = toLength(R.lastIndex);
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return new $RegExpStringIterator(matcher, S, global, fullUnicode);
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};
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// `String.prototype.matchAll` method
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// https://github.com/tc39/proposal-string-matchall
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$({ target: 'String', proto: true, forced: WORKS_WITH_NON_GLOBAL_REGEX }, {
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matchAll: function matchAll(regexp) {
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var O = requireObjectCoercible(this);
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var flags, S, matcher, rx;
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if (regexp != null) {
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if (isRegExp(regexp)) {
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flags = String(requireObjectCoercible('flags' in RegExpPrototype
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? regexp.flags
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: getRegExpFlags.call(regexp)
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));
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if (!~flags.indexOf('g')) throw TypeError('`.matchAll` does not allow non-global regexes');
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}
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if (WORKS_WITH_NON_GLOBAL_REGEX) return nativeMatchAll.apply(O, arguments);
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matcher = regexp[MATCH_ALL];
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if (matcher === undefined && IS_PURE && classof(regexp) == 'RegExp') matcher = $matchAll;
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if (matcher != null) return aFunction(matcher).call(regexp, O);
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} else if (WORKS_WITH_NON_GLOBAL_REGEX) return nativeMatchAll.apply(O, arguments);
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S = String(O);
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rx = new RegExp(regexp, 'g');
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return IS_PURE ? $matchAll.call(rx, S) : rx[MATCH_ALL](S);
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}
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});
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IS_PURE || MATCH_ALL in RegExpPrototype || createNonEnumerableProperty(RegExpPrototype, MATCH_ALL, $matchAll);
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