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18 lines
729 B
JavaScript
18 lines
729 B
JavaScript
// Copyright (C) 2020 devsnek. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-object-initializer-static-semantics-early-errors
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description: >
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It is a Syntax Error if PropertyNameList of PropertyDefinitionList contains
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any duplicate entries for "__proto__" and at least two of those entries were
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obtained from productions of the form
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PropertyDefinition : PropertyName `:` AssignmentExpression .
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This rule is not applied if this PropertyDefinition is contained within a
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Script which is being evaluated for JSON.parse (see step 4 of JSON.parse).
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---*/
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var result = JSON.parse('{ "__proto__": 1, "__proto__": 2 }');
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assert.sameValue(result.__proto__, 2);
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