On Sunday, 9 December 2012 at 19:54:17 UTC, js.mdnq wrote:
On Sunday, 9 December 2012 at 19:34:05 UTC, anonymous wrote:
On Sunday, 9 December 2012 at 19:24:24 UTC, js.mdnq wrote:
In this particular case you can do this:
mixin template GenStruct(string stringname)
{
struct S
{
....
}
mixin("alias S " ~ stringname ~ "alpha;");
}
But what if I use more than one mixin? I'll have multiple
structs
with the same name.
That's not an issue.
"If two different mixins are put in the same scope, and each
define a declaration with the same name, there is an ambiguity
error when the declaration is referenced" (note: when it's
referenced, not when it's declared)
and
"If the name of a declaration in a mixin is the same as a
declaration in the surrounding scope, the surrounding
declaration overrides the mixin one"
- http://dlang.org/template-mixin.html
Huh?
No, I mean, if I use the mixin more than once?
GenStruct("s1");
GenStruct("s2");
then I'll have
struct s { } alias s s1;
struct s { } alias s s2;
which will fail or not be what I want, since I want to generate
the structs s1 and s1.
It won't fail and you'll get s1alpha and s2alpha.
Maybe it helps if you see it in action:
http://dpaste.dzfl.pl/5d4cb742 (Note: "Result: Success", i.e. the
asserts hold)
