define new types within templates
Phil Deets
pjdeets2 at gmail.com
Tue Dec 29 15:24:28 PST 2009
On Tue, 29 Dec 2009 17:44:18 -0500, teo <teo.ubuntu.remove at yahoo.com>
wrote:
> There was a way to define new types within templates and I think that I
> have seen that demonstrated here in the newsgroups, but cannot find it
> now. Can someone help me please?
>
> I would like to do something like this:
>
> template MyTemplate(T)
> {
> struct T ~ "Struct" // define FooStruct structure
> {
> int x;
> }
> class T ~ "Class" // define FooClass class
> {
> void bar(T ~ "Struct" t)
> {
> // ...
> }
> }
> }
>
> void main()
> {
> mixin MyTemplate!("Foo");
> FooStruct t;
> FooClass f = new FooClass();
> f.bar(t);
> }
>
> Hopefully I am not mistaken.
Did you try string mixins? Maybe something like this untested code:
template MyTemplate(T)
{
mixin (CtfeReplace(q{
struct _T_Struct
{
int x;
}
}, "_T_", T.stringof));
mixin (CtfeReplace(q{
class _T_Class
{
void bar(_T_Struct t)
{
// ...
}
}
}, "_T_", T.stringof));
}
Sorry if this is a duplicate post. I attempted to cancel my earlier post.
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