| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case |
| // - src/dstr-binding/error/try.template |
| /*--- |
| description: Error forwarding when IteratorValue returns an abrupt completion (try statement) |
| esid: sec-runtime-semantics-catchclauseevaluation |
| features: [Symbol.iterator, destructuring-binding] |
| flags: [generated] |
| info: | |
| Catch : catch ( CatchParameter ) Block |
| |
| [...] |
| 5. Let status be the result of performing BindingInitialization for |
| CatchParameter passing thrownValue and catchEnv as arguments. |
| [...] |
| |
| 13.3.3.6 Runtime Semantics: IteratorBindingInitialization |
| BindingRestElement : ... BindingIdentifier |
| 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, |
| environment). |
| 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, |
| [...] |
| c. Let nextValue be IteratorValue(next). |
| d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to |
| true. |
| e. ReturnIfAbrupt(nextValue). |
| |
| ---*/ |
| var poisonedValue = Object.defineProperty({}, 'value', { |
| get: function() { |
| throw new Test262Error(); |
| } |
| }); |
| var iter = {}; |
| iter[Symbol.iterator] = function() { |
| return { |
| next: function() { |
| return poisonedValue; |
| } |
| }; |
| }; |
| |
| assert.throws(Test262Error, function() { |
| try { |
| throw iter; |
| } catch ([...x]) {} |
| }); |