mirror of https://github.com/tc39/test262.git
53 lines
2.1 KiB
JavaScript
53 lines
2.1 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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description: >
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Imported binding reflects state of exported default binding ("named"
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generator function declaration)
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esid: sec-moduledeclarationinstantiation
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info: |
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[...]
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17. For each element d in lexDeclarations do
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a. For each element dn of the BoundNames of d do
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i. If IsConstantDeclaration of d is true, then
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[...]
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ii. Else,
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1. Perform ! envRec.CreateMutableBinding(dn, false).
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iii. If d is a GeneratorDeclaration production or a
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FunctionDeclaration production, then
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1. Let fo be the result of performing InstantiateFunctionObject
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for d with argument env.
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2. Call envRec.InitializeBinding(dn, fo).
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[...]
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14.4.12 Runtime Semantics: InstantiateFunctionObject
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GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
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1. If the function code for GeneratorDeclaration is strict mode code, let
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strict be true. Otherwise let strict be false.
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2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
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GeneratorBody, scope, strict).
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3. Let prototype be ObjectCreate(%GeneratorPrototype%).
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4. Perform DefinePropertyOrThrow(F, "prototype",
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PropertyDescriptor{[[Value]]: prototype, [[Writable]]: true,
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[[Enumerable]]: false, [[Configurable]]: false}).
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5. Perform SetFunctionName(F, "default").
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6. Return F.
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14.4 Generator Function Definitions
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Syntax
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GeneratorDeclaration[Yield, Default] :
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function * BindingIdentifier[?Yield] ( FormalParameters[Yield] ) { GeneratorBody }
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[+Default] function * ( FormalParameters[Yield] ) { GeneratorBody }
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flags: [module]
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---*/
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assert.sameValue(g().next().value, 23, 'generator function value is hoisted');
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assert.sameValue(g.name, 'gName', 'correct name is assigned');
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import g from './instn-named-bndng-dflt-gen-named.js';
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export default function* gName() { return 23; };
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