| // 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: > |
| Abrupt completion during coercion of value of "groups" object. |
| 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 "$<". |
| d. Else, |
| i. Let groupName be the enclosed substring. |
| ii. Let capture be ? Get(namedCaptures, groupName). |
| iii. If capture is undefined, replace the text through > with the empty String. |
| iv. Otherwise, replace the text through > with ? ToString(capture). |
| features: [Symbol.replace, regexp-named-groups] |
| ---*/ |
| |
| var r = /./; |
| var coercibleValue = { |
| length: 1, |
| 0: '', |
| index: 0, |
| groups: { |
| foo: { |
| toString: function() { |
| throw new Test262Error(); |
| }, |
| }, |
| }, |
| }; |
| |
| r.exec = function() { |
| return coercibleValue; |
| }; |
| |
| assert.throws(Test262Error, function() { |
| r[Symbol.replace]('a', '$<foo>'); |
| }); |