Overload assignment operator, and implicit conversion

It would be nice to be able to overload the assignment operator, and convert implicitly:

class myNum:
public i as int

def constructor(j as int):
i = j

static def op_Assignment(j as int):
i = j

static def op_Addition(x as myNum, y as myNum) as myNum:
return x.i + y.i // becomes return myNum(x.i + y.i)

x as myNum = 0 // becomes x as myNum = myNum(0)
x = 4 // becomes x.op_Assignment(4)