mirror of https://github.com/tc39/test262.git
35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
|
// Copyright 2017 Aleksey Shvayka. All rights reserved.
|
||
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
||
|
|
|
||
|
|
/*---
|
||
|
|
description: Properties of the groups object are created with CreateDataProperty
|
||
|
|
includes: [propertyHelper.js]
|
||
|
|
esid: sec-regexpbuiltinexec
|
||
|
|
features: [regexp-named-groups]
|
||
|
|
info: >
|
||
|
|
Runtime Semantics: RegExpBuiltinExec ( R, S )
|
||
|
|
24. If R contains any GroupName,
|
||
|
|
a. Let groups be ObjectCreate(null).
|
||
|
|
b. Perform ! CreateDataProperty(A, "groups", groups).
|
||
|
|
---*/
|
||
|
|
|
||
|
|
// groups is created with Define, not Set
|
||
|
|
let counter = 0;
|
||
|
|
Object.defineProperty(Array.prototype, "groups", {set() { counter++; }});
|
||
|
|
let match = /(?<x>.)/.exec("a");
|
||
|
|
assert.sameValue(counter, 0);
|
||
|
|
|
||
|
|
// groups is writable, enumerable and configurable
|
||
|
|
// (from CreateDataProperty)
|
||
|
|
verifyProperty(match, "groups", {
|
||
|
|
writable: true,
|
||
|
|
enumerable: true,
|
||
|
|
configurable: true,
|
||
|
|
});
|
||
|
|
|
||
|
|
// 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");
|
||
|
|
assert.sameValue("a", groups.__proto__);
|
||
|
|
assert.sameValue(null, Object.getPrototypeOf(groups));
|