On Mon, 18 Feb 2013 17:14:54 -0500, Andrej Mitrovic
<andrej.mitrov...@gmail.com> wrote:
http://dlang.org/template.html#TemplateThisParameter
That's hardly a descriptive example, so in what context is the feature
useful? Some code snippets would be welcome so we can update the page
with a nicer and more useful example.
I actually use it in dcollections :)
What it's nice for is simulating covariance with interface templates:
interface Addable(T)
{
auto addAll(this R)(T[] stuff)
{
foreach(t; stuff) add(t);
return cast(R)this;
}
Addable add(T t);
}
class List(T) : Addable!(T)
{
List add(T t) { ... }
// don't need to redefine addAll
}
This became important when operators were forced to be templates.
-Steve
