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Diffstat (limited to 'js/src/tests/test262/language/statements/class/dstr/async-gen-meth-ary-ptrn-rest-ary-elision.js')
-rw-r--r-- | js/src/tests/test262/language/statements/class/dstr/async-gen-meth-ary-ptrn-rest-ary-elision.js | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/dstr/async-gen-meth-ary-ptrn-rest-ary-elision.js b/js/src/tests/test262/language/statements/class/dstr/async-gen-meth-ary-ptrn-rest-ary-elision.js new file mode 100644 index 0000000000..36d6da2178 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/dstr/async-gen-meth-ary-ptrn-rest-ary-elision.js @@ -0,0 +1,96 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-elision.case +// - src/dstr-binding/default/cls-decl-async-gen-meth.template +/*--- +description: Rest element containing an elision (class expression method) +esid: sec-class-definitions-runtime-semantics-evaluation +features: [generators, async-iteration] +flags: [generated, async] +info: | + ClassDeclaration : class BindingIdentifier ClassTail + + 1. Let className be StringValue of BindingIdentifier. + 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with + argument className. + [...] + + 14.5.14 Runtime Semantics: ClassDefinitionEvaluation + + 21. For each ClassElement m in order from methods + a. If IsStatic of m is false, then + i. Let status be the result of performing + PropertyDefinitionEvaluation for m with arguments proto and + false. + [...] + + Runtime Semantics: PropertyDefinitionEvaluation + + 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 : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + 2. Return NormalCompletion(empty). + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + + +var callCount = 0; +class C { + async *method([...[,]]) { + assert.sameValue(first, 1); + assert.sameValue(second, 1); + callCount = callCount + 1; + } +}; + +new C().method(g()).next().then(() => { + assert.sameValue(callCount, 1, 'invoked exactly once'); +}).then($DONE, $DONE); |