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45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
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// - src/dstr-binding/default/async-gen-func-decl-dflt.template
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/*---
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description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration (default parameter))
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esid: sec-asyncgenerator-definitions-instantiatefunctionobject
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features: [async-iteration]
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flags: [generated, async]
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info: |
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AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
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( FormalParameters ) { AsyncGeneratorBody }
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[...]
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3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
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scope, strict).
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[...]
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13.3.3.6 Runtime Semantics: IteratorBindingInitialization
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SingleNameBinding : BindingIdentifier Initializeropt
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[...]
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6. If Initializer is present and v is undefined, then
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a. Let defaultValue be the result of evaluating Initializer.
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b. Let v be GetValue(defaultValue).
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c. ReturnIfAbrupt(v).
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d. If IsAnonymousFunctionDefinition(Initializer) is true, then
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[...]
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7. If environment is undefined, return PutValue(lhs, v).
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8. Return InitializeReferencedBinding(lhs, v).
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---*/
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var callCount = 0;
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async function* f([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
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assert.sameValue(cls.name, 'cls');
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assert.notSameValue(xCls.name, 'xCls');
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assert.notSameValue(xCls2.name, 'xCls2');
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callCount = callCount + 1;
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};
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f().next().then(() => {
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assert.sameValue(callCount, 1, 'invoked exactly once');
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}).then($DONE, $DONE);
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