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Diffstat (limited to 'js/src/tests/test262/language/expressions/object/dstr/async-gen-meth-ary-ptrn-rest-id-exhausted.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/object/dstr/async-gen-meth-ary-ptrn-rest-id-exhausted.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/object/dstr/async-gen-meth-ary-ptrn-rest-id-exhausted.js b/js/src/tests/test262/language/expressions/object/dstr/async-gen-meth-ary-ptrn-rest-id-exhausted.js new file mode 100644 index 0000000000..430af6f12e --- /dev/null +++ b/js/src/tests/test262/language/expressions/object/dstr/async-gen-meth-ary-ptrn-rest-id-exhausted.js @@ -0,0 +1,49 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case +// - src/dstr-binding/default/async-gen-meth.template +/*--- +description: RestElement applied to an exhausted iterator (async generator method) +esid: sec-asyncgenerator-definitions-propertydefinitionevaluation +features: [Symbol.iterator, async-iteration] +flags: [generated, async] +info: | + AsyncGeneratorMethod : + async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) + { AsyncGeneratorBody } + + 1. Let propKey be the result of evaluating PropertyName. + 2. ReturnIfAbrupt(propKey). + 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true. + Otherwise let strict be false. + 4. Let scope be the running execution context's LexicalEnvironment. + 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters, + AsyncGeneratorBody, scope, strict). + [...] + + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, + environment). + 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, + [...] + b. If iteratorRecord.[[done]] is true, then + i. If environment is undefined, return PutValue(lhs, A). + ii. Return InitializeReferencedBinding(lhs, A). + +---*/ + + +var callCount = 0; +var obj = { + async *method([, , ...x]) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 0); + callCount = callCount + 1; + } +}; + +obj.method([1, 2]).next().then(() => { + assert.sameValue(callCount, 1, 'invoked exactly once'); +}).then($DONE, $DONE); |