September 02, 2009
Wed, 02 Sep 2009 10:28:58 +0200, downs thusly wrote:

> Robert Fraser wrote:
>> downs wrote:
>>> <downs>     foo.betweens("src=\"", "\"") /select/ (string s) { return
>>> s.find(criteria) != -1; }
>> 
>> Heh, I love that infix expression syntax. Too abd it ends up with a completely useless wrapper struct & 2 function calls, but hopefully LDC can inline that out.
>> 
>> 
> I'm 90% sure it can.
> 
> [update] Actually, I just tried and LDC compiles a simple /select/ test
> to plain, inlined code. [update2] GDC doesn't.
> [update3] For that matter, neither does DMD.
> 
> LDC is really shaping up to be the best D compiler out there. It already is on Unix (imho). Now if only they can get win32 exception support to work ..
> 
>>> <downs>     auto videocon =
>>> ctx.getStreams().first(WHERE!("?.codec.codec_type ==
>>> CodecType.Video")).codec;
>> 
>> Heh, going LINQ on us, now?
> 
> I _was_ thinking of that :) Could have used ex!() but WHERE is a little
> denser.
> 
> (for comparison: ex!("c -> c.codec.codec_type == CodecType.Video") )

This is impressive. You acknowledge that the functional representation is so much better that you actually implement its compiler with the metaprogramming facilities. Imagine, in future, you can just write, mixin compile("SML", ` some code ... `); and all your problems are solved. It's a shame the built-in syntax looks like this crap

  (T)(T c){ return c; }

instead of this

  c -> c
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