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// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-regexp.prototype-@@replace
description: >
String coercion of "groups" object values returned by RegExpExec.
info: |
RegExp.prototype [ @@replace ] ( string, replaceValue )
[...]
14. For each result in results, do
[...]
j. Let namedCaptures be ? Get(result, "groups").
k. If functionalReplace is true, then
[...]
l. Else,
[...]
ii. Let replacement be ? GetSubstitution(matched, S, position, captures, namedCaptures, replaceValue).
Runtime Semantics: GetSubstitution ( matched, str, position, captures, namedCaptures, replacement )
[...]
11. Let result be the String value derived from replacement by copying code unit elements
from replacement to result while performing replacements as specified in Table 54.
These $ replacements are done left-to-right, and, once such a replacement is performed,
the new replacement text is not subject to further replacements.
12. Return result.
Table 54: Replacement Text Symbol Substitutions
$<
1. If namedCaptures is undefined, the replacement text is the String "$<".
2. Else,
a. Assert: Type(namedCaptures) is Object.
b. Scan until the next > U+003E (GREATER-THAN SIGN).
c. If none is found, the replacement text is the String "$<".
d. Else,
i. Let groupName be the enclosed substring.
ii. Let capture be ? Get(namedCaptures, groupName).
iii. If capture is undefined, replace the text through > with the empty String.
iv. Otherwise, replace the text through > with ? ToString(capture).
features: [Symbol.replace, regexp-named-groups]
---*/
var r = /./;
var coercibleValue = {
length: 1,
0: 'a',
index: 0,
groups: {
foo: {
toString: function() {
return 'toString value';
},
valueOf: function() {
throw new Test262Error('This method should not be invoked.');
},
},
bar: null,
},
};
r.exec = function() {
return coercibleValue;
};
assert.sameValue(r[Symbol.replace]('ab', '[$<foo>]'), '[toString value]b');
assert.sameValue(r[Symbol.replace]('ab', '[$<bar>]'), '[null]b');
reportCompare(0, 0);
|
