DMDScript now under Boost license

[Philippe Sigaud]

On Wed, Mar 31, 2010 at 21:21, Adam D. Ruppe <destructionator at gmail.com>wrote:

> On Wed, Mar 31, 2010 at 09:03:10PM +0200, Philippe Sigaud wrote:
> > Cool, I wasn't sure it'd work. Now we know what this new trait is for :)
>
> It is slightly different than my old code: the getPlainName helper function
> is not required with the __trait. (It truncated the string at the first
> paren, since stringof returns the arguments too, whereas identifier does
> not).
>

I get it.


>
> I think it would be a good idea to get a nice overview doc written up on
> template idioms - things like this, how to use the isSomeString, etc,
> templates in std.traits to work the constraints, and so on.
>

Or the way to sneak arrays as template parameters...

Oh yes. I'd be willing to participate, but I'm also waiting to see what
Andrei says in his book.

I recently made a template to bind template parameters, and another to
determine the 'arity' of a template (no param, 1, etc.). The latter was
after discovering that if an alias parameter is a template, the .stringof
gives the entire signature : parameters, constraints, etc.
I'm discovering something new every week and I have the impression my
knowledge of templates is ... kaleidoscopic : lots of colorful parts, no
global vision.



> Another one in pretty.d I hit was taking a ParameterTypeTuple and using it
> to expand the runtime args array. At first, I used a list of static if
> T.length == 1, and manually written it out. Today, I changed it to a CTFE
> function returning a string to mix on, which sucks less, but still feels
> weird.
>

I still feel wrong when I'm using CTFE. That's too bad, because with the
recent leaps in the CTFE perimeter Don made, CTFE has become a very powerful
tool indeed.


Having a nice overview document would be good to save time and make this
> kind of code prettier. Maybe I'll write one to get started then post it to
> the group for additions and improvements. Don't have the time today though.
>

A document, or a wiki page. But to start things and get a little attention,
a discussion here is better.


  Philippe
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