mirror of https://github.com/tc39/test262.git
33 lines
1.3 KiB
JavaScript
33 lines
1.3 KiB
JavaScript
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// 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-evaldeclarationinstantiation
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description: Newly-created local binding may be deleted
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info: |
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[...]
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15. For each production f in functionsToInitialize, do
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a. Let fn be the sole element of the BoundNames of f.
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b. Let fo be the result of performing InstantiateFunctionObject for f
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with argument lexEnv.
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c. If varEnvRec is a global Environment Record, then
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[...]
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d. Else,
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i. Let bindingExists be varEnvRec.HasBinding(fn).
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ii. If bindingExists is false, then
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1. Let status be ! varEnvRec.CreateMutableBinding(fn, true).
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2. Assert: status is not an abrupt completion because of
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validation preceding step 12.
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3. Perform ! varEnvRec.InitializeBinding(fn, fo).
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[...]
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flags: [noStrict]
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---*/
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var initial, postDeletion;
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(function() {
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eval('initial = f; delete f; postDeletion = function() { f; }; function f() { return 33; }');
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}());
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assert.sameValue(typeof initial, 'function');
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assert.sameValue(initial(), 33);
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assert.throws(ReferenceError, postDeletion, 'binding may be deleted');
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