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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/language/statements/class/async-gen-method/dflt-params-arg-val-undefined.js | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/async-gen-method/dflt-params-arg-val-undefined.js b/js/src/tests/test262/language/statements/class/async-gen-method/dflt-params-arg-val-undefined.js new file mode 100644 index 0000000000..711588c5a7 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/async-gen-method/dflt-params-arg-val-undefined.js @@ -0,0 +1,74 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-arg-val-undefined.case +// - src/function-forms/default/cls-decl-async-gen-meth.template +/*--- +description: Use of initializer when argument value is `undefined` (class declaration async generator method) +esid: sec-class-definitions-runtime-semantics-evaluation +features: [default-parameters, 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). + [...] + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + [...] + 23. Let iteratorRecord be Record {[[Iterator]]: + CreateListIterator(argumentsList), [[Done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + a. Perform ? IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + +---*/ + +var callCount = 0; +class C { + async *method(fromLiteral = 23, fromExpr = 45, fromHole = 99) { + assert.sameValue(fromLiteral, 23); + assert.sameValue(fromExpr, 45); + assert.sameValue(fromHole, 99); + callCount = callCount + 1; + } +} + +// Stores a reference `ref` for case evaluation +var ref = C.prototype.method; + +ref(undefined, void 0).next().then(() => { + assert.sameValue(callCount, 1, 'method invoked exactly once'); +}).then($DONE, $DONE); |