UDA status

[simendsjo]

On Sunday, 17 March 2013 at 14:46:59 UTC, Jacob Carlborg wrote:
> On 2013-03-11 21:41, simendsjo wrote:
>
>> Some update.. Using a custom Tuple(T...) makes things a bit 
>> smoother.
>> Here's my first working test with two templates: hasAttr to 
>> see if an
>> attribute exists, and attrOfType to get all attributes 
>> matching a type
>> (not sure if I should include values..)
>
> You need to use TypeTuple and not Tuple. This is my library 
> functions for UDA's:
>
> https://github.com/jacob-carlborg/orange/blob/master/orange/core/Attribute.d

Thanks. I've gotten quite far already:

     struct A { int i; }
     @("struct S")
     struct S {
         @("int i", 0, 1, S, A(-1))
         int i;
         @("string a", "aoeu", 2, string, A(10))
         string a;
         @("long f(int i)")
         long f(int i) { return i; }
     }
     alias TypeTuple!(  TupleWrapper!(S, "struct S")
                      , TupleWrapper!(S.i, "int i", 0, 1, S, A(-1))
                      , TupleWrapper!(S.a, "string a", "aoeu", 2, 
string, A(10))
                      , TupleWrapper!(S.f, "long f(int i)")
                      ) Expected;
     alias getMembersAndAttributes!S Actual;
     static assert(isEqual!(TupleWrapper!Expected, 
TupleWrapper!Actual));