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var counter = 0;
const iterable = {
[Symbol.iterator]() {
return {
i: 0,
// Force the return method into a dynamic slot.
x0: 0, x1: 0, x2: 0, x3: 0, x4: 0, x5: 0, x6: 0, x7: 0, x8: 0,
x9: 0, x10: 0, x11: 0, x12: 0, x13: 0, x14: 0, x15: 0, x16: 0,
x17: 0, x18: 0, x19: 0, x20: 0, x21: 0, x22: 0, x23: 0, x24: 0,
next() {
return { value: this.i++, done: false }
},
return() {
counter += 1;
return { value: undefined, done: true };
}
};
}
}
function closeIter(o) {
for (var x of o) {
if (x == 2) {
throw "good";
}
}
}
function test() {
with ({}) {}
counter = 0;
for (var i = 0; i < 100; i++) {
var caught = "bad";
try {
closeIter(iterable)
} catch (e) {
caught = e;
}
assertEq(caught, "good");
}
assertEq(counter, 100)
}
with ({}) {}
test();
// Force an IC in Ion.
try {
closeIter([1,2,3]);
} catch {}
test();
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