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// Define constructor with a proxy as prototype
let hook = { get: function(target, name, receiver) { return receiver; } }
let Base = function() { }
Base.prototype = new Proxy(Base.prototype, hook);
class Derived extends Base {
test() {
// Check proxy receiver is |this|, rather than Base.[[Prototype]]
assertEq(super.x, this);
}
test_elem() {
// Check proxy receiver is |this|, rather than Base.[[Prototype]]
assertEq(super[0], this);
}
}
let d = new Derived();
for (let i = 0; i < 20; ++i) {
d.test();
d.test_elem();
}