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46 lines
1.3 KiB
JavaScript
46 lines
1.3 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
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// - src/dstr-binding/error/async-gen-func-decl-dflt.template
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/*---
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description: Error forwarding when IteratorStep returns an abrupt completion (async generator function declaration (default parameter))
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esid: sec-asyncgenerator-definitions-instantiatefunctionobject
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features: [Symbol.iterator, async-iteration]
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flags: [generated]
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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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4. If iteratorRecord.[[done]] is false, then
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a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
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b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
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c. ReturnIfAbrupt(next).
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---*/
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var g = {};
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g[Symbol.iterator] = function() {
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return {
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next: function() {
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throw new Test262Error();
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}
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};
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};
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async function* f([x] = g) {
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};
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assert.throws(Test262Error, function() {
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f();
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});
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