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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.
/*---
esid: sec-generator-function-definitions-runtime-semantics-evaluation
es6id: 14.4.14
description: >
Abrupt completion returned when accessing `done` property of iteration result
info: |
YieldExpression : yield * AssignmentExpression
1. Let exprRef be the result of evaluating AssignmentExpression.
2. Let value be ? GetValue(exprRef).
3. Let iterator be ? GetIterator(value).
4. Let received be NormalCompletion(undefined).
5. Repeat
a. If received.[[Type]] is normal, then
i. Let innerResult be ? IteratorNext(iterator, received.[[Value]]).
ii. Let done be ? IteratorComplete(innerResult).
7.4.3 IteratorComplete
1. Assert: Type(iterResult) is Object.
2. Return ToBoolean(? Get(iterResult, "done")).
features: [generators, Symbol.iterator]
---*/
var thrown = new Test262Error();
var badIter = {};
var poisonedDone = Object.defineProperty({}, 'done', {
get: function() {
throw thrown;
}
});
badIter[Symbol.iterator] = function() {
return {
next: function() {
return poisonedDone;
}
};
};
function* g() {
try {
yield * badIter;
} catch (err) {
caught = err;
}
}
var iter = g();
var result, caught;
result = iter.next();
assert.sameValue(caught, thrown);
reportCompare(0, 0);
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