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Add "lastIndex" length abrupt coercion test
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test/built-ins/RegExp/prototype/Symbol.replace/coerce-lastindex-err.js
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test/built-ins/RegExp/prototype/Symbol.replace/coerce-lastindex-err.js
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// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-regexp.prototype-@@replace
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description: >
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Abrupt completion during coercion of "lastIndex" property of `this` value.
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info: |
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RegExp.prototype [ @@replace ] ( string, replaceValue )
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[...]
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11. Repeat, while done is false
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a. Let result be ? RegExpExec(rx, S).
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b. If result is null, set done to true.
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c. Else,
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i. Append result to the end of results.
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ii. If global is false, set done to true.
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iii. Else,
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1. Let matchStr be ? ToString(? Get(result, "0")).
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2. If matchStr is the empty String, then
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a. Let thisIndex be ? ToLength(? Get(rx, "lastIndex")).
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features: [Symbol.replace]
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---*/
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var r = /./g;
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var execWasCalled = false;
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var coercibleIndex = {
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valueOf: function() {
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throw new Test262Error();
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},
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};
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var result = {
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length: 1,
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0: '',
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index: 0,
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};
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r.exec = function() {
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if (execWasCalled) {
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return null;
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}
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r.lastIndex = coercibleIndex;
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execWasCalled = true;
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return result;
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};
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assert.throws(Test262Error, function() {
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r[Symbol.replace]('', '');
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});
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