[Cython] Done with prototype for "parse tree transforms"

[Martin C. Martin]

Ok, thanks a lot.

My day job is programming Lisp, and since I started two years ago, I've 
seen the light about a number of things, including macros.  It would be 
cool to have access to the Abstract Syntax Tree of a Cython 
expression/statement/function/etc., and be able to manipulate it at 
compile time.  But it sounds like that's a whole other project.  :)

Best,
Martin

Dag Sverre Seljebotn wrote:
> Martin C. Martin wrote:
>> Great!
>>
>> How does it compare to Lisp's macros?
> I'll try to answer, but I'm guessing about your assumptions so do ask 
> again if I miss.
> 
> This is work that is only relevant to the internal Cython compiler, so 
> it doesn't compare (or compares very poorly) with LISP. Ie when 
> transforming the parse tree one is transforming the input Cython source 
> to output C source, but the transform itself doesn't live within that 
> parse tree at all.
> 
> If what you are asking instead is: How easy is it to write transforms 
> compared to writing LISP macros, then the answer is still that it 
> compares poorly, but then the goals are rather different too (the number 
> of transforms will be max ~30 I think, and the number of LISP programs 
> are... :-) )
> 
> 
> Dag Sverre