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https://github.com/tc39/test262.git
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2fe074134a
This change set includes tests for most invocations of the SetFunctionName abstract operation in the ES2015 specification. Practical testing considerations preclude the introduction of tests for certain invocations: - The project is still vetting methods to sustainably test the semantics of the Destructuring Binding pattern across all valid productions. - 13.3.3.6 Runtime Semantics: IteratorBindingInitialization - 13.3.3.7 Runtime Semantics: KeyedBindingInitialization - Without a loader, there is no way to access a function object declared in an ExportDeclaration, so `name` assignment cannot be tested in these cases - 14.1.19 Runtime Semantics: InstantiateFunctionObject - 14.4.12 Runtime Semantics: InstantiateFunctionObject - 14.5.15 Runtime Semantics: BindingClassDeclarationEvaluation - 15.2.3.11 Runtime Semantics: Evaluation
45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
// Copyright (C) Copyright 2015 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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es6id: 12.2.6.9
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description: >
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Assignment of function `name` attribute (GeneratorExpression)
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info: >
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6. If IsAnonymousFunctionDefinition(AssignmentExpression) is true, then
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a. Let hasNameProperty be HasOwnProperty(propValue, "name").
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b. ReturnIfAbrupt(hasNameProperty).
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c. If hasNameProperty is false, perform SetFunctionName(propValue,
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propKey).
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includes: [propertyHelper.js]
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features: [generators, Symbol]
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---*/
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var namedSym = Symbol('test262');
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var anonSym = Symbol();
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var o;
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o = {
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xId: function* x() {},
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id: function*() {},
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[anonSym]: function*() {},
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[namedSym]: function*() {}
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};
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assert(o.xId.name !== 'xId');
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assert.sameValue(o.id.name, 'id', 'via IdentifierName');
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verifyNotEnumerable(o.id, 'name');
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verifyNotWritable(o.id, 'name');
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verifyConfigurable(o.id, 'name');
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assert.sameValue(o[anonSym].name, '', 'via anonymous Symbol');
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verifyNotEnumerable(o[anonSym], 'name');
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verifyNotWritable(o[anonSym], 'name');
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verifyConfigurable(o[anonSym], 'name');
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assert.sameValue(o[namedSym].name, '[test262]', 'via Symbol');
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verifyNotEnumerable(o[namedSym], 'name');
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verifyNotWritable(o[namedSym], 'name');
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verifyConfigurable(o[namedSym], 'name');
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