async-private-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js (2916B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case 4 // - src/dstr-binding/default/cls-expr-async-private-gen-meth-static-dflt.template 5 /*--- 6 description: BindingElement with object binding pattern and initializer is used (private static class expression async generator method (default parameter)) 7 esid: sec-class-definitions-runtime-semantics-evaluation 8 features: [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 46 BindingElement : BindingPatternInitializer opt 47 48 [...] 49 2. If iteratorRecord.[[done]] is true, let v be undefined. 50 3. If Initializer is present and v is undefined, then 51 a. Let defaultValue be the result of evaluating Initializer. 52 b. Let v be ? GetValue(defaultValue). 53 4. Return the result of performing BindingInitialization of BindingPattern 54 with v and environment as the arguments. 55 ---*/ 56 57 58 var callCount = 0; 59 var C = class { 60 static async * #method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) { 61 assert.sameValue(v, 444); 62 assert.sameValue(x, 555); 63 assert.sameValue(z, 666); 64 65 assert.throws(ReferenceError, function() { 66 u; 67 }); 68 assert.throws(ReferenceError, function() { 69 w; 70 }); 71 assert.throws(ReferenceError, function() { 72 y; 73 }); 74 callCount = callCount + 1; 75 } 76 77 static get method() { 78 return this.#method; 79 } 80 }; 81 82 C.method().next().then(() => { 83 assert.sameValue(callCount, 1, 'invoked exactly once'); 84 }).then($DONE, $DONE);