async-gen-meth-dflt-params-ref-self.js (1721B)
1 // This file was procedurally generated from the following sources: 2 // - src/function-forms/dflt-params-ref-self.case 3 // - src/function-forms/error/async-gen-meth.template 4 /*--- 5 description: Referencing a parameter from within its own initializer (async generator method) 6 esid: sec-asyncgenerator-definitions-propertydefinitionevaluation 7 features: [default-parameters, async-iteration] 8 flags: [generated] 9 info: | 10 AsyncGeneratorMethod : 11 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) 12 { AsyncGeneratorBody } 13 14 1. Let propKey be the result of evaluating PropertyName. 15 2. ReturnIfAbrupt(propKey). 16 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true. 17 Otherwise let strict be false. 18 4. Let scope be the running execution context's LexicalEnvironment. 19 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters, 20 AsyncGeneratorBody, scope, strict). 21 [...] 22 23 24 14.1.19 Runtime Semantics: IteratorBindingInitialization 25 26 FormalsList : FormalsList , FormalParameter 27 28 1. Let status be the result of performing IteratorBindingInitialization for 29 FormalsList using iteratorRecord and environment as the arguments. 30 2. ReturnIfAbrupt(status). 31 3. Return the result of performing IteratorBindingInitialization for 32 FormalParameter using iteratorRecord and environment as the arguments. 33 34 ---*/ 35 var x = 0; 36 37 var callCount = 0; 38 var obj = { 39 async *method(x = x) { 40 41 callCount = callCount + 1; 42 } 43 }; 44 45 assert.throws(ReferenceError, function() { 46 obj.method(); 47 }); 48 assert.sameValue(callCount, 0, 'generator method body not evaluated'); 49 50 reportCompare(0, 0);