// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object-initializer
description: Permitted duplicate `__proto__` property
info: |
Annex B defines an early error for duplicate PropertyName of `__proto__`,
but this does not apply to properties created from other productions.
B.3.1 __proto__ Property Names in Object Initializers
It is a Syntax Error if PropertyNameList of PropertyDefinitionList contains
any duplicate entries for "__proto__" and at least two of those entries
were obtained from productions of the form
PropertyDefinition : PropertyName : AssignmentExpression .
features: [generators, async-functions, async-iteration, __proto__]
---*/
var obj = {
__proto__: null,
__proto_: null,
__proto: null,
_proto__: null,
proto__: null,
['__proto__']: null,
__proto__() {},
* __proto__() {},
async __proto__() {},
async * __proto__() {},
get __proto__() { return 33; },
set __proto__(_) { return 44; }
};
var desc = Object.getOwnPropertyDescriptor(obj, '__proto__');
assert.sameValue(desc.get(), 33);
assert.sameValue(desc.set(), 44);