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Diffstat (limited to 'js/src/tests/test262/language/expressions/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-done.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-done.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-done.js b/js/src/tests/test262/language/expressions/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-done.js new file mode 100644 index 0000000000..0395e46437 --- /dev/null +++ b/js/src/tests/test262/language/expressions/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-done.js @@ -0,0 +1,42 @@ +// |reftest| async +// 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); |