async-private-gen-meth-static-obj-ptrn-prop-ary.js (2467B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/dstr-binding/obj-ptrn-prop-ary.case 4 // - src/dstr-binding/default/cls-decl-async-private-gen-meth-static.template 5 /*--- 6 description: Object binding pattern with "nested" array binding pattern not using initializer (private static class expression async generator method) 7 esid: sec-runtime-semantics-bindingclassdeclarationevaluation 8 features: [class, class-static-methods-private, async-iteration] 9 flags: [generated, async] 10 info: | 11 ClassDeclaration : class BindingIdentifier ClassTail 12 13 1. Let className be StringValue of BindingIdentifier. 14 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with 15 argument className. 16 [...] 17 18 14.5.14 Runtime Semantics: ClassDefinitionEvaluation 19 20 21. For each ClassElement m in order from methods 21 a. If IsStatic of m is false, then 22 b. Else, 23 Let status be the result of performing PropertyDefinitionEvaluation for 24 m with arguments F and false. 25 [...] 26 27 Runtime Semantics: PropertyDefinitionEvaluation 28 29 AsyncGeneratorMethod : 30 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) 31 { AsyncGeneratorBody } 32 33 1. Let propKey be the result of evaluating PropertyName. 34 2. ReturnIfAbrupt(propKey). 35 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true. 36 Otherwise let strict be false. 37 4. Let scope be the running execution context's LexicalEnvironment. 38 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters, 39 AsyncGeneratorBody, scope, strict). 40 [...] 41 42 43 13.3.3.7 Runtime Semantics: KeyedBindingInitialization 44 45 [...] 46 3. If Initializer is present and v is undefined, then 47 [...] 48 4. Return the result of performing BindingInitialization for BindingPattern 49 passing v and environment as arguments. 50 ---*/ 51 52 53 var callCount = 0; 54 class C { 55 static async * #method({ w: [x, y, z] = [4, 5, 6] }) { 56 assert.sameValue(x, 7); 57 assert.sameValue(y, undefined); 58 assert.sameValue(z, undefined); 59 60 assert.throws(ReferenceError, function() { 61 w; 62 }); 63 callCount = callCount + 1; 64 } 65 66 static get method() { 67 return this.#method; 68 } 69 }; 70 71 C.method({ w: [7, undefined, ] }).next().then(() => { 72 assert.sameValue(callCount, 1, 'invoked exactly once'); 73 }).then($DONE, $DONE);