diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-subclass.js')
-rw-r--r-- | js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-subclass.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-subclass.js b/js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-subclass.js new file mode 100644 index 0000000000..a833d1f10f --- /dev/null +++ b/js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-subclass.js @@ -0,0 +1,36 @@ +// Copyright 2017 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Test the groups object on RegExp subclass results that have their own. +esid: sec-regexpbuiltinexec +features: [regexp-named-groups] +info: | + Runtime Semantics: RegExpBuiltinExec ( R, S ) + 24. If _R_ contains any |GroupName|, then + a. Let _groups_ be ObjectCreate(*null*). + 25. Else, + a. Let _groups_ be *undefined*. + 26. Perform ! CreateDataProperty(_A_, `"groups"`, _groups_). +---*/ + +class FakeRegExp extends RegExp { + exec(subject) { + const fakeResult = ["ab", "a"]; + fakeResult.index = 0; + fakeResult.groups = { a: "b" }; + Object.getPrototypeOf(fakeResult.groups).b = "c"; + return fakeResult; + } +}; + +const re = new FakeRegExp(); +const result = re.exec("ab"); +assert.sameValue(Object.getPrototypeOf(result), Array.prototype); +assert(result.hasOwnProperty("groups")); +assert.sameValue("b", result.groups.a); +assert.sameValue("b", "ab".replace(re, "$<a>")); +assert.sameValue("c", "ab".replace(re, "$<b>")); + +reportCompare(0, 0); |