async-private-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js (2632B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/dstr-binding/ary-ptrn-rest-id-exhausted.case 4 // - src/dstr-binding/default/cls-expr-async-private-gen-meth-static-dflt.template 5 /*--- 6 description: RestElement applied to an exhausted iterator (private static class expression async generator method (default parameter)) 7 esid: sec-class-definitions-runtime-semantics-evaluation 8 features: [Symbol.iterator, class, class-static-methods-private, async-iteration] 9 flags: [generated, async] 10 info: | 11 ClassExpression : class BindingIdentifieropt ClassTail 12 13 1. If BindingIdentifieropt is not present, let className be undefined. 14 2. Else, let className be StringValue of BindingIdentifier. 15 3. Let value be the result of ClassDefinitionEvaluation of ClassTail 16 with 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 25 for 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 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 45 BindingRestElement : ... BindingIdentifier 46 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, 47 environment). 48 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, 49 [...] 50 b. If iteratorRecord.[[done]] is true, then 51 i. If environment is undefined, return PutValue(lhs, A). 52 ii. Return InitializeReferencedBinding(lhs, A). 53 54 ---*/ 55 56 57 var callCount = 0; 58 var C = class { 59 static async * #method([, , ...x] = [1, 2]) { 60 assert(Array.isArray(x)); 61 assert.sameValue(x.length, 0); 62 callCount = callCount + 1; 63 } 64 65 static get method() { 66 return this.#method; 67 } 68 }; 69 70 C.method().next().then(() => { 71 assert.sameValue(callCount, 1, 'invoked exactly once'); 72 }).then($DONE, $DONE);