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39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/obj-ptrn-prop-id-init.case
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// - src/dstr-binding/default/async-gen-func-decl-dflt.template
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/*---
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description: Binding as specified via property name, identifier, and initializer (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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13.3.3.7 Runtime Semantics: KeyedBindingInitialization
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SingleNameBinding : BindingIdentifier Initializeropt
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[...]
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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({ x: y = 33 } = { }) {
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assert.sameValue(y, 33);
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assert.throws(ReferenceError, function() {
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x;
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});
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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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