// |reftest| async // This file was procedurally generated from the following sources: // - src/function-forms/dflt-params-arg-val-not-undefined.case // - src/function-forms/default/cls-decl-async-gen-meth-static.template /*--- description: Use of initializer when argument value is not `undefined` (static class declaration async generator method) esid: sec-runtime-semantics-bindingclassdeclarationevaluation 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 b. Else, Let status be the result of performing PropertyDefinitionEvaluation for m with arguments F 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 obj = {}; var falseCount = 0; var stringCount = 0; var nanCount = 0; var zeroCount = 0; var nullCount = 0; var objCount = 0; var callCount = 0; class C { static async *method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) { assert.sameValue(aFalse, false); assert.sameValue(aString, ''); assert.sameValue(aNaN, NaN); assert.sameValue(a0, 0); assert.sameValue(aNull, null); assert.sameValue(aObj, obj); callCount = callCount + 1; } } // Stores a reference `ref` for case evaluation var ref = C.method; ref(false, '', NaN, 0, null, obj).next().then(() => { assert.sameValue(callCount, 1, 'method invoked exactly once'); }).then($DONE, $DONE); assert.sameValue(falseCount, 0, 'initializer not evaluated: false'); assert.sameValue(stringCount, 0, 'initializer not evaluated: string'); assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN'); assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0'); assert.sameValue(nullCount, 0, 'initializer not evaluated: null'); assert.sameValue(objCount, 0, 'initializer not evaluated: object');