[Cython] #303 + simplifying type system

[Dag Sverre Seljebotn]

Dag Sverre Seljebotn wrote:
> A)
> 
> Ticket #303 manifests itself like this:
> 
> cdef extern:
>      ctypedef float footype # really double!
> 
> cdef class A:
>      cdef public footype myproperty
> 
> My suggestion for a fix here is to replace all T_INT, T_UINT etc. with 
> simply three types: __Pyx_T_SIGNED, __Pyx_T_UNSIGNED, __Pyx_T_FLOAT. 
> These would use sizeof to determine the right type to flag the extension 
> type property as (like Lisandro did with T_SIZET already does).
> 
> I can then change T_SIZET to __Pyx_T_UNSIGNED, right? (Basically that 
> would be a rename...) Or it T_SIZET is defined in any Python version, 
> I'll just throw it in on the list of possible "outputs" from the macro 
> if it is defined.
> 
> B)
> 
> Given this change (which could happen in -devel), is there any obstacles 
> to getting rid of the detailed type system in PyrexTypes? Basically 
> Cython would only deal with "signed", "unsigned" and "float" (and in 
> time "complex").
> 
> Doing
> 
> cdef short i
> 
> would basically flag i as "signed"; the "short-ness" would only be 
> present as the cname of the type.
> 

Note: I see B) happening in -unstable. (A) in -devel).


-- 
Dag Sverre