ary-ptrn-elem-ary-rest-init.js (1442B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case 3 // - src/dstr-binding/default/try.template 4 /*--- 5 description: BindingElement with array binding pattern and initializer is 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 [...] 22 2. If iteratorRecord.[[done]] is true, let v be undefined. 23 3. 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 4. Return the result of performing BindingInitialization of BindingPattern 27 with v and environment as the arguments. 28 ---*/ 29 var values = [2, 1, 3]; 30 31 var ranCatch = false; 32 33 try { 34 throw []; 35 } catch ([[...x] = values]) { 36 assert(Array.isArray(x)); 37 assert.sameValue(x[0], 2); 38 assert.sameValue(x[1], 1); 39 assert.sameValue(x[2], 3); 40 assert.sameValue(x.length, 3); 41 assert.notSameValue(x, values); 42 ranCatch = true; 43 } 44 45 assert(ranCatch, 'executed `catch` block'); 46 47 reportCompare(0, 0);