mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 03:34:08 +01:00
42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
|
|
// - src/dstr-binding/default/async-gen-func-expr-dflt.template
|
|
/*---
|
|
description: SingleNameBinding when value iteration was completed previously (async generator function expression (default parameter))
|
|
esid: sec-asyncgenerator-definitions-evaluation
|
|
features: [async-iteration]
|
|
flags: [generated, async]
|
|
info: |
|
|
AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
|
|
AsyncGeneratorBody }
|
|
|
|
[...]
|
|
3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
|
|
AsyncGeneratorBody, scope, strict).
|
|
[...]
|
|
|
|
|
|
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
|
|
|
|
SingleNameBinding : BindingIdentifier Initializeropt
|
|
|
|
[...]
|
|
4. If iteratorRecord.[[done]] is false, then
|
|
[...]
|
|
5. If iteratorRecord.[[done]] is true, let v be undefined.
|
|
[...]
|
|
8. Return InitializeReferencedBinding(lhs, v).
|
|
---*/
|
|
|
|
|
|
var callCount = 0;
|
|
var f;
|
|
f = async function*([_, x] = []) {
|
|
assert.sameValue(x, undefined);
|
|
callCount = callCount + 1;
|
|
};
|
|
|
|
f().next().then(() => {
|
|
assert.sameValue(callCount, 1, 'invoked exactly once');
|
|
}).then($DONE, $DONE);
|