named-dflt-ary-ptrn-rest-id-elision-next-err.js (1435B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case 3 // - src/dstr-binding/error/async-gen-func-named-expr-dflt.template 4 /*--- 5 description: Rest element following elision elements (async generator named function expression (default parameter)) 6 esid: sec-asyncgenerator-definitions-evaluation 7 features: [generators, async-iteration] 8 flags: [generated] 9 info: | 10 AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier 11 ( FormalParameters ) { AsyncGeneratorBody } 12 13 [...] 14 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, 15 AsyncGeneratorBody, funcEnv, strict). 16 [...] 17 18 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 19 ArrayBindingPattern : [ Elisionopt BindingRestElement ] 20 1. If Elision is present, then 21 a. Let status be the result of performing 22 IteratorDestructuringAssignmentEvaluation of Elision with 23 iteratorRecord as the argument. 24 b. ReturnIfAbrupt(status). 25 2. Return the result of performing IteratorBindingInitialization for 26 BindingRestElement with iteratorRecord and environment as arguments. 27 28 ---*/ 29 var iter = (function*() { throw new Test262Error(); })(); 30 31 32 var f; 33 f = async function* h([, ...x] = iter) { 34 35 }; 36 37 assert.throws(Test262Error, function() { 38 f(); 39 }); 40 41 reportCompare(0, 0);