Just wondering if this exists in the standard library.
I made a function "Implements!(T,I)" that returns true is a given
type "T" implements the interface "I".
http://dpaste.dzfl.pl/d7a727fd
I've found it really helps with keeping some code clean such as
the below:
void main() {
int i = 0x34342343;
writebytes(i);
}
//enum Order { Big };
//interface IRawBytes { ubyte[] bytes(Order); }
interface IRawBytes { ubyte[] bytes(); }
void writebytes(T)(T item) if (Implements!(T, IRawBytes)) {
import std.stdio : writeln;
writeln(item.bytes);
}
ubyte[] bytes(ref int i) {
ubyte* ptr;
ptr = cast(ubyte*)&i;
return ptr[0..i.sizeof];
}
If you decide that IRawBytes.bytes should start taking an Order
parameter you get the same benefits you would have got if you had
used classes with an interface.
