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// Copyright (C) 2018 Peter Wong. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: pending
description: Verify regexp's lastIndex is cached
info: |
RegExp.prototype [ @@matchAll ] ( string )
[...]
3. Return ? MatchAllIterator(R, string).
MatchAllIterator ( R, O )
[...]
2. If ? IsRegExp(R) is true, then
[...]
f. Let lastIndex be ? ToLength(? Get(R, "lastIndex")).
g. Perform ? Set(matcher, "lastIndex", lastIndex, true).
features: [Symbol.matchAll]
includes: [compareArray.js, compareIterator.js, regExpUtils.js]
---*/
var regexp = /./g;
regexp.lastIndex = {
valueOf() {
return 2;
}
};
var str = 'abcd';
var iter = regexp[Symbol.matchAll](str);
// Verify lastIndex is cached at the time of calling @@matchAll
regexp.lastIndex = 0;
assert.compareIterator(iter, [
matchValidator(['c'], 2, str),
matchValidator(['d'], 3, str)
]);
reportCompare(0, 0);
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