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function bar(o, trigger) {
with ({}) {}
if (trigger) {
Object.defineProperty(o, "y", {
get() { return 3; }
});
}
}
function foo(o, trigger) {
var result;
for (var key in o) {
result = o[key];
bar(o, trigger);
}
return result;
}
var arr = [];
for (var i = 0; i < 10; i++) {
arr.push({["x" + i]: 0, y: 0});
}
with ({}) {}
for (var i = 0; i < 1000; i++) {
for (var o of arr) {
foo(o, false)
}
}
print(foo(arr[0], true));