mixin creating an enum
Robert Fraser
fraserofthenight at gmail.com
Fri May 23 05:02:14 PDT 2008
Hendrik Renken wrote:
> Hi,
>
> i have a struct containing "attributes" identified by int-ids:
>
> struct Foo
> {
> char[uint] attributes;
> }
>
>
> I would like to use instead of the int-ids an enum, since the range of
> the ids is strict and cannot change. And i want this struct to be
> generic. So what i need would be a mixin template, which i give the enum
> -members and the template generates the enum.
>
> struct Foo(char[] enummembers)
> {
> enum Bar
> {
> mixin enummembers;
> }
>
> char[][] attributes;
> }
>
> Now i would be able to address the attributes by the enum-members. Is
> that possible? Since i couldn't find anythiong close in the docs or in
> the Wiki4D or in the dsource tutorials
struct Foo(char[] enumMembers)
{
mixin("enum Bar {" ~ enumMembers ~ "}");
char[][Bar] attributes;
}
...?
If enumMembers isn't in the exact correct form, you'll probably need a
string function to get it there.
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