Source code

Revision control

Copy as Markdown

Other Tools

// Copyright (C) 2020 devsnek. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object-initializer-static-semantics-early-errors
description: >
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 .
This rule is not applied if this PropertyDefinition is contained within a
Script which is being evaluated for JSON.parse (see step 4 of JSON.parse).
---*/
var result = JSON.parse('{ "__proto__": 1, "__proto__": 2 }');
assert.sameValue(result.__proto__, 2);
reportCompare(0, 0);