mirror of https://github.com/tc39/test262.git
Add `replaceValue` evaluation order test
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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-string.prototype.replace
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description: >
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Non-callable replaceValue is evaluated before searching the string.
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info: |
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String.prototype.replace ( searchValue, replaceValue )
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...
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6. If functionalReplace is false, then
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a. Set replaceValue to ? ToString(replaceValue).
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7. Search string for the first occurrence of searchString and let pos be the
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index within string of the first code unit of the matched substring and let
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matched be searchString. If no occurrences of searchString were found, return string.
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---*/
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var calls = 0;
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var replaceValue = {
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toString: function() {
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calls += 1;
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return "b";
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},
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};
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var newString = "".replace("a", replaceValue);
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assert.sameValue(newString, "");
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assert.sameValue(calls, 1);
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