ary-ptrn-elem-id-init-throws.js (1212B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elem-id-init-throws.case 3 // - src/dstr-binding/error/async-gen-func-decl.template 4 /*--- 5 description: Destructuring initializer returns an abrupt completion (async generator function declaration) 6 esid: sec-asyncgenerator-definitions-instantiatefunctionobject 7 features: [async-iteration] 8 flags: [generated] 9 info: | 10 AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier 11 ( FormalParameters ) { AsyncGeneratorBody } 12 13 [...] 14 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody, 15 scope, strict). 16 [...] 17 18 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 19 20 SingleNameBinding : BindingIdentifier Initializeropt 21 22 [...] 23 6. If Initializer is present and v is undefined, then 24 a. Let defaultValue be the result of evaluating Initializer. 25 b. Let v be GetValue(defaultValue). 26 c. ReturnIfAbrupt(v). 27 ---*/ 28 29 30 async function* f([x = (function() { throw new Test262Error(); })()]) { 31 32 }; 33 34 assert.throws(Test262Error, function() { 35 f([undefined]); 36 }); 37 38 reportCompare(0, 0);