async-gen-meth-dflt-ary-ptrn-elem-obj-val-null.js (1704B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elem-obj-val-null.case 3 // - src/dstr-binding/error/async-gen-method-dflt.template 4 /*--- 5 description: Nested object destructuring with a null value (async generator method (default parameter)) 6 esid: sec-asyncgenerator-definitions-propertydefinitionevaluation 7 features: [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 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 24 25 BindingElement : BindingPattern Initializeropt 26 27 1. If iteratorRecord.[[done]] is false, then 28 [...] 29 e. Else 30 i. Let v be IteratorValue(next). 31 [...] 32 4. Return the result of performing BindingInitialization of BindingPattern 33 with v and environment as the arguments. 34 35 13.3.3.5 Runtime Semantics: BindingInitialization 36 37 BindingPattern : ObjectBindingPattern 38 39 1. Let valid be RequireObjectCoercible(value). 40 2. ReturnIfAbrupt(valid). 41 ---*/ 42 43 44 var obj = { 45 async *method([{ x }] = [null]) { 46 47 } 48 }; 49 50 assert.throws(TypeError, function() { 51 obj.method(); 52 }); 53 54 reportCompare(0, 0);