test262/test/annexB/built-ins/RegExp/match-indices/indices-groups-object.js

23 lines
882 B
JavaScript

// Copyright 2019 Ron Buckton. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: The groups object of indices is created with CreateDataProperty
includes: [compareArray.js]
esid: sec-makeindicesarray
features: [regexp-named-groups, regexp-match-indices]
info: |
MakeIndicesArray ( S, indices, groupNames )
8. If _groupNames_ is not *undefined*, then
a. Let _groups_ be ! ObjectCreate(*null*).
9. Else,
a. Let _groups_ be *undefined*.
10. Perform ! CreateDataProperty(_A_, `"groups"`, _groups_).
---*/
// The `__proto__` property on the groups object is not special,
// and does not affect the [[Prototype]] of the resulting groups object.
let {groups} = /(?<__proto__>.)/.exec("a").indices;
assert.compareArray([0, 1], groups.__proto__);
assert.sameValue(null, Object.getPrototypeOf(groups));