Null references

[Nick Treleaven]

On 22/08/2012 16:42, Philippe Sigaud wrote:
> Then, both Simen and you could code a generic algebraic datatype
> generator, with the associated matching functions (and probably
> mapping / reducing) Here come the whole Haskell / ML menagerie of
> types:)
>
> mixin(ADT("
> Tree(T):
>      Leaf(T)
>    | Branch(Tree, Tree)
> "));
>
> or something like that... And then encode JSON like this.
>
> Or update std.typecons.Algebraic to make it deal with recursive definitions...

Sounds interesting. I haven't really thought about modelling sum types 
yet - but I'm probably not the best person as I haven't actually used 
them in a functional language. I expect that D's meta-programming 
abilities will allow for some interesting things.

BTW thanks for your template tutorial, it's been very helpful.