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// Errors accessing next, done, or value don't cause an exception to be
// thrown into the iterator of a yield*.
function* g(n) { for (var i=0; i<n; i++) yield i; }
function* delegate(iter) { return yield* iter; }
var log = "", inner, outer;
// That var is poisoooooon, p-poison poison...
var Poison = new Error;
function log_calls(method) {
return function () {
log += "x"
return method.call(this);
}
}
function poison(receiver, prop) {
Object.defineProperty(receiver, prop, { get: function () { throw Poison } });
}
// Poison inner.next.
inner = g(10);
outer = delegate(inner);
inner.throw = log_calls(inner.throw);
poison(inner, 'next')
assertThrowsValue(outer.next.bind(outer), Poison);
assertEq(log, "");
// Poison result value from inner.
inner = g(10);
outer = delegate(inner);
inner.next = function () { return { done: true, get value() { throw Poison} } };
inner.throw = log_calls(inner.throw);
assertThrowsValue(outer.next.bind(outer), Poison);
assertEq(log, "");
// Poison result done from inner.
inner = g(10);
outer = delegate(inner);
inner.next = function () { return { get done() { throw Poison }, value: 42 } };
inner.throw = log_calls(inner.throw);
assertThrowsValue(outer.next.bind(outer), Poison);
assertEq(log, "");
// mischief managed.
if (typeof reportCompare == "function")
reportCompare(true, true);