Troublemaker dmd 2.061 - Templates?

[nazriel]

On Saturday, 5 January 2013 at 18:45:26 UTC, David wrote:
> LOL
> mixin template get_packets_mixin(alias Module) {
>     template get_packets() {
>         alias NoDuplicates!(get_packets_impl!(get_members!())) 
> get_packets;
>     }
>
>     template get_members() {
>         alias TypeTuple!(__traits(allMembers, Module)) 
> get_members;
>     }
>
>     private template get_packets_impl(T...) {
>         static if(__traits(compiles, mixin(T[0]).id)) {
> //             pragma(msg, PacketTuple!(mixin(T[0]), 
> mixin(T[0]).id));
> //             pragma(msg, get_packets_impl!(T[1..$]));
>             alias TypeTuple!(PacketTuple!(mixin(T[0]), 
> mixin(T[0]).id),
> get_packets_impl!(T[1..$])) get_packets_impl;
>         } else {
> //             pragma(msg, get_packets_impl!(T[1..$])); // 
> <----------
>             alias TypeTuple!(get_packets_impl!(T[1..$])) 
> get_packets_impl;
>         }
>     }
>
>     private template get_packets_impl() {
>         alias TypeTuple!() get_packets_impl;
>     }
>
>     template PacketTuple(T, ubyte b) {
>         alias T cls;
>         alias b id;
>     }
>
>     auto parse_packet(ubyte id)(Stream s) {
>         alias staticIndexOf!(id, staticMap!(extract_id, 
> get_packets!()))
> id_index;
>         static if(id_index < 0) {
>             static assert(false, "Invalid packet with id: " ~
> toStringNow!id);
>         } else {
>             return get_packets!()[id_index].cls.recv(s);
>         }
>     }
>
>     pragma(msg, get_packets_impl!(__traits(allMembers, 
> Module)));
> }
>
> With this pragma: "pragma(msg, get_packets_impl!(T[1..$]));"
> outcommented, I get _error_, but if I let it in, everything 
> compiles.
>
> I have no idea if I should laugh or cry.

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