On Saturday, 25 May 2013 at 18:05:01 UTC, yaz wrote:
Is there a reason for restricting mixin templates to only
include declarations?
For example, the following code doesn't work.
(http://dpaste.dzfl.pl/1582a25e)
Looking at the language specification
(http://dlang.org/template-mixin.html) this doesn't seem to be
an implementation limitation.
import std.stdio;
mixin template Test() {
writeln("Hello D People!");
}
void main() {
mixin Test;
}
I would have posted to the main newsgroup but I thought that
maybe I'm missing something.
Thanks.
I think you can do it using a string mixin instead:
enum Test = `writeln("Hello D People!")`
void main() {
mixin(Test);
}
The answer to your question is probably that D has to know the
context for a template mixing at the point where it is declared
rather than where it is used.
If non-declarations were allowed the semantic meaning of the
template mixin would depend on the way it was used, and that's
not allowed.
I could also be completely wrong of course :P
