Re: [Swig-devel] Recent mods - global vars and regression test times

[Marcelo M. <mm...@ac...>]

William S Fulton wrote:

> Perl, Tcl and Python no longer mangle global variable wrappers with
> _wrap. Isn't this a bit dangerous and likely to cause a name clash with
> user code?


if you mean the set/get functions, well, yes, for a long time we have 
this possible
conflict, since if you have

  struct A {
     int x;
  };

then swig generates the methods A_x_set/ A_x_get. The same for global 
variables
I guess, ie,it will generate the methods x_set/x_get. The problem is 
that there are
many examples (and the docs) which depend on this rule, so you can do 
for example

%extend A {
      int x;
}

and manually provide the A_x_set/A_x_get methods.

In some moment we will need to break the entire universe in some moment 
and force everyone to
use either _wrap_A_x_get/_wrap_A_x_set or swig_A_x_get/swig_A_x_set.


>
> The perl test-suite seems to be taking a lot longer to run. I just timed
> it and it takes more than TWICE as long as 1.3.27. SWIG must be more 
> than 2x slower as this time includes the C++ compiler/link time as 
> well as executing some perl tests. What is causing this huge change? 
> Is it because the preprocessor, like me, also needs extra time to 
> decipher what the hell is going on with all the newly introduced macro 
> obfuscation? ;)
>
> I spend hours and hours testing the code before releases and it looks 
> like this is now going to take even longer. If there is anything that 
> can be done to return these languages back to the speed they used to 
> be I'd appreciate it very much.
>
well, we can try to profile swig again and look for some bottlenecks.... 
let me see if I can test something
later. Also, there are newer and larger tests for perl, tcl and ruby, 
like primitive_types.cpptest.

> Maybe it is time to add in the CMake nightly regression testing
> which can be run without any effort in the background so my own
> testing will no longer be necessary. 

you mean we can do that?, where?, in sourceforge?

> Or maybe someone wants to buy me a
> multiprocessor 4GHz machine ;)
>
me too!, however, first we will need swig to be able to recognize 
something like:

   make -j4 check-python-test-suite

Marcelo

> Ever hopeful!
> William
>
>
>
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