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89a75a90f6
These tests are againt a proposed fix for https://github.com/tc39/ecma262/issues/753 They seem to pass in V8, JSC and SpiderMonkey, though ChakraCore hews slightly closer to the previous specification.
51 lines
1.1 KiB
Plaintext
51 lines
1.1 KiB
Plaintext
// Copyright (C) 2017 Igalia, S. L. 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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desc: >
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Variable binding is left in place by legacy function hoisting.
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CreateGlobalVariableBinding leaves the binding as non-enumerable even
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if it has the chance to change it to be enumerable.
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template: global
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info: |
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B.3.3.3 Changes to GlobalDeclarationInstantiation
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[...]
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Perform ? varEnvRec.CreateGlobalVarBinding(F, true).
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[...]
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includes: [fnGlobalObject.js, propertyHelper.js]
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---*/
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//- setup
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var global = fnGlobalObject();
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Object.defineProperty(global, 'f', {
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value: 'x',
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enumerable: false,
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writable: true,
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configurable: true
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});
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$262.evalScript(`
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assert.sameValue(f, 'x');
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verifyProperty(global, 'f', {
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enumerable: false,
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writable: true,
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configurable: true
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}, { restore: true });
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`);
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$262.evalScript(`
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//- body
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return 'inner declaration';
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//- teardown
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`);
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$262.evalScript(`
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assert.sameValue(f(), 'inner declaration');
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verifyProperty(global, 'f', {
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enumerable: false,
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writable: true,
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configurable: true
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});
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`);
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