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41 lines
1.4 KiB
JavaScript
41 lines
1.4 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. 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-globaldeclarationinstantiation
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es6id: 15.1.8
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description: >
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Declaration of variable when there is no corresponding global property and
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the global object is non-extensible
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info: |
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[...]
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11. Let declaredVarNames be a new empty List.
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12. For each d in varDeclarations, do
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a. If d is a VariableDeclaration or a ForBinding, then
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i. For each String vn in the BoundNames of d, do
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1. If vn is not an element of declaredFunctionNames, then
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a. Let vnDefinable be ? envRec.CanDeclareGlobalVar(vn).
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b. If vnDefinable is false, throw a TypeError exception.
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c. If vn is not an element of declaredVarNames, then
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i. Append vn to declaredVarNames.
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8.1.1.4.15 CanDeclareGlobalVar
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1. Let envRec be the global Environment Record for which the method was
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invoked.
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2. Let ObjRec be envRec.[[ObjectRecord]].
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3. Let globalObject be the binding object for ObjRec.
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4. Let hasProperty be ? HasOwnProperty(globalObject, N).
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5. If hasProperty is true, return true.
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6. Return ? IsExtensible(globalObject).
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---*/
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var executed = false;
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Object.preventExtensions(this);
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assert.throws(TypeError, function() {
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$262.evalScript('executed = true; var test262;');
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});
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assert.sameValue(executed, false);
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