print("\n--- Test: Method Calls on Objects ---");

// Setup a dictionary object
var obj = {};

// 1) Zero-arg method assigned to a property and invoked via dot call
obj.hello = func(){ print("hello-method"); };
obj.hello();

// 2) Method that uses the receiver as first implicit argument (self)
obj.set = func(self, key, value){ self[key] = value; };
obj.get = func(self, key){ return self[key]; };

obj.set(obj, "name", "Bob");
assert(obj.get(obj, "name") == "Bob", "obj.get should return value set via method using receiver");

// 3) Ensure taking a reference to a method and calling it as a plain function still works
var ref = obj.hello;
ref();

// 4) Ensure passing extra args still respects order after receiver injection
obj.concat3 = func(self, a, b){ return toString(a) + ":" + toString(b) + ":" + toString(self["name"]); };
var s = obj.concat3(obj, 1, 2);
assert(s == "1:2:Bob", "receiver should be last component in return value");

print("Method calls on objects: PASS");