Re: interface final members

[Jacob Carlborg]

On 2012-02-21 14:15, Mantis wrote:
21.02.2012 14:46, Joshua Reusch пишет:
interface I {
final int foo(I other, int a, int b) {
return other.foo(a,b) + a*b;
}
int foo(int a, int b);
}
class A : I {
int foo(int a, int b) {
return a*b;
}
}

void main() {
A a = new A;

a.foo(5,5);
a.I.foo(a, 5,5);
a.foo(a, 5,5); //line 22
}
---------
$ rdmd interface_final_test
interface_final_test.d(22): Error: function interface_final_test.A.foo
(int a, int b) is not callable using argument types (A,int,int)
interface_final_test.d(22): Error: expected 2 arguments, not 3 for
non-variadic function type int(int a, int b)
---------


Why do I need to write a.I.foo instead of a.foo to call the final
method of the interface ?

Thank you, Joshua



I can't comment on the behaviour, but you may find this workaround useful:

class A : I {
alias I.foo foo;
int foo(int a, int b) {
return a*b;
}
}

It's because the base class and the subclass use different overload 
sets, or something like that.

--
/Jacob Carlborg