dflt-ary-init-iter-get-err.js (1111B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-init-iter-get-err.case 3 // - src/dstr-binding/error/async-gen-func-decl-dflt.template 4 /*--- 5 description: Abrupt completion returned by GetIterator (async generator function declaration (default parameter)) 6 esid: sec-asyncgenerator-definitions-instantiatefunctionobject 7 features: [Symbol.iterator, 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 13.3.3.5 Runtime Semantics: BindingInitialization 19 20 BindingPattern : ArrayBindingPattern 21 22 1. Let iterator be GetIterator(value). 23 2. ReturnIfAbrupt(iterator). 24 25 ---*/ 26 var iter = {}; 27 iter[Symbol.iterator] = function() { 28 throw new Test262Error(); 29 }; 30 31 32 async function* f([x] = iter) { 33 34 }; 35 36 assert.throws(Test262Error, function() { 37 f(); 38 }); 39 40 reportCompare(0, 0);