test262/src/dstr-binding/ary-ptrn-elem-id-iter-step-...

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: Error forwarding when IteratorStep returns an abrupt completion
template: error
info: |
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
---*/
//- setup
var g = {};
g[Symbol.iterator] = function() {
return {
next: function() {
throw new Test262Error();
}
};
};
//- elems
[x]
//- vals
g
//- error
Test262Error