ary-ptrn-elem-ary-rest-iter.js (1489B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case 3 // - src/dstr-binding/default/try.template 4 /*--- 5 description: BindingElement with array binding pattern and initializer is not used (try statement) 6 esid: sec-runtime-semantics-catchclauseevaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 Catch : catch ( CatchParameter ) Block 11 12 [...] 13 5. Let status be the result of performing BindingInitialization for 14 CatchParameter passing thrownValue and catchEnv as arguments. 15 [...] 16 17 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 18 19 BindingElement : BindingPatternInitializer opt 20 21 1. If iteratorRecord.[[done]] is false, then 22 a. Let next be IteratorStep(iteratorRecord.[[iterator]]). 23 [...] 24 e. Else, 25 i. Let v be IteratorValue(next). 26 [...] 27 4. Return the result of performing BindingInitialization of BindingPattern 28 with v and environment as the arguments. 29 ---*/ 30 var values = [2, 1, 3]; 31 var initCount = 0; 32 33 var ranCatch = false; 34 35 try { 36 throw [values]; 37 } catch ([[...x] = function() { initCount += 1; }()]) { 38 assert(Array.isArray(x)); 39 assert.sameValue(x[0], 2); 40 assert.sameValue(x[1], 1); 41 assert.sameValue(x[2], 3); 42 assert.sameValue(x.length, 3); 43 assert.notSameValue(x, values); 44 assert.sameValue(initCount, 0); 45 ranCatch = true; 46 } 47 48 assert(ranCatch, 'executed `catch` block'); 49 50 reportCompare(0, 0);