Andrei Alexandrescu wrote:
What are your faves?
opDispatch was expectantly successful for me. I haven't seen it
often used in examples or others peoples code, but it allows for
some really awesome stuff.
For instance, who says D doesn't have multiple inheritance?
struct A { void a() { writeln("a"); } }
struct B { void b() { writeln("b"); } }
struct C {
private A _a;
private B _b;
void opDispatch(string s)() {
static if (__traits(hasMember, A, s))
mixin("_a."~s~"();");
else if (__traits(hasMember, B, s))
mixin("_b."~s~"();");
else static assert("Method not found.");
}
}
void main() {
auto c = C();
c.a();
c.b();
}
and similarly, "alias x this" is useful for pseudo hierarchy. The
only down-side to doing this is that Mono-D doesn't currently
parse the syntax.
