ary-ptrn-elision-step-err.js (1441B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-elision-step-err.case 3 // - src/dstr-binding/error/try.template 4 /*--- 5 description: Elision advances iterator and forwards abrupt completions (try statement) 6 esid: sec-runtime-semantics-catchclauseevaluation 7 features: [generators, 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 ArrayBindingPattern : [ Elision ] 20 21 1. Return the result of performing 22 IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord 23 as the argument. 24 25 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation 26 27 Elision : , 28 29 1. If iteratorRecord.[[done]] is false, then 30 a. Let next be IteratorStep(iteratorRecord.[[iterator]]). 31 b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. 32 c. ReturnIfAbrupt(next). 33 34 ---*/ 35 var following = 0; 36 var iter =function* () { 37 throw new Test262Error(); 38 following += 1; 39 }(); 40 41 assert.throws(Test262Error, function() { 42 try { 43 throw iter; 44 } catch ([,]) {} 45 }); 46 47 iter.next(); 48 assert.sameValue(following, 0, 'Iterator was properly closed.'); 49 50 reportCompare(0, 0);