async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js (2326B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case 4 // - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template 5 /*--- 6 description: Rest object doesn't contain non-enumerable properties (static class expression async generator method (default parameter)) 7 esid: sec-runtime-semantics-bindingclassdeclarationevaluation 8 features: [object-rest, async-iteration] 9 flags: [generated, async] 10 includes: [propertyHelper.js] 11 info: | 12 ClassDeclaration : class BindingIdentifier ClassTail 13 14 1. Let className be StringValue of BindingIdentifier. 15 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with 16 argument className. 17 [...] 18 19 14.5.14 Runtime Semantics: ClassDefinitionEvaluation 20 21 21. For each ClassElement m in order from methods 22 a. If IsStatic of m is false, then 23 b. Else, 24 Let status be the result of performing PropertyDefinitionEvaluation for 25 m with arguments F and false. 26 [...] 27 28 Runtime Semantics: PropertyDefinitionEvaluation 29 30 AsyncGeneratorMethod : 31 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) 32 { AsyncGeneratorBody } 33 34 1. Let propKey be the result of evaluating PropertyName. 35 2. ReturnIfAbrupt(propKey). 36 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true. 37 Otherwise let strict be false. 38 4. Let scope be the running execution context's LexicalEnvironment. 39 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters, 40 AsyncGeneratorBody, scope, strict). 41 [...] 42 43 ---*/ 44 var o = {a: 3, b: 4}; 45 Object.defineProperty(o, "x", { value: 4, enumerable: false }); 46 47 48 var callCount = 0; 49 class C { 50 static async *method({...rest} = o) { 51 assert.sameValue(rest.x, undefined); 52 53 verifyProperty(rest, "a", { 54 enumerable: true, 55 writable: true, 56 configurable: true, 57 value: 3 58 }); 59 60 verifyProperty(rest, "b", { 61 enumerable: true, 62 writable: true, 63 configurable: true, 64 value: 4 65 }); 66 callCount = callCount + 1; 67 } 68 }; 69 70 C.method().next().then(() => { 71 assert.sameValue(callCount, 1, 'invoked exactly once'); 72 }).then($DONE, $DONE);