var-ary-ptrn-elision-iter-close.js (1416B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elision-iter-close.case 3 // - src/dstr-binding/iter-close/for-of-var.template 4 /*--- 5 description: The iterator is properly consumed by the destructuring pattern (for-of statement) 6 esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation 7 features: [generators, destructuring-binding] 8 flags: [generated] 9 info: | 10 IterationStatement : 11 for ( var ForBinding of AssignmentExpression ) Statement 12 13 [...] 14 3. Return ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult, 15 varBinding, labelSet). 16 17 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation 18 19 [...] 20 3. Let destructuring be IsDestructuring of lhs. 21 [...] 22 5. Repeat 23 [...] 24 h. If destructuring is false, then 25 [...] 26 i. Else 27 i. If lhsKind is assignment, then 28 [...] 29 ii. Else if lhsKind is varBinding, then 30 1. Assert: lhs is a ForBinding. 31 2. Let status be the result of performing BindingInitialization 32 for lhs passing nextValue and undefined as the arguments. 33 [...] 34 ---*/ 35 const iter = (function* () { 36 yield; 37 yield; 38 })(); 39 40 41 function fn() { 42 for (var [,] of [iter]) { 43 return; 44 } 45 } 46 47 fn(); 48 49 assert.sameValue(iter.next().done, true, 'iteration occurred as expected'); 50 51 52 reportCompare(0, 0);