Andrei Alexandrescu schrieb: > Consider two objects a and b with a of class type. Currently, the > expression a == b is blindly rewritten as a.opEquals(b). I argue it > should be rewritten into a call to an (imaginary/inlined) function > equalObjects(a, b), with the following definition: > > bool equalObjects(T, U)(T a, U b) if (is(T == class)) > { > static if (is(U == class)) > { > if (b is null) return a is null; > if (a is null) return b is null; > } > else > { > enforce(a !is null); > } > return a.opEquals(b); > } > > This hoists the identity test outside the opEquals call and also deals > with null references. What do you think? > > > Andrei
What about interfaces?