ufl team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Apr 26, 2011 at 03:45:22PM +0100, Garth N. Wells wrote:
>
>
> On 26/04/11 13:51, Anders Logg wrote:
> > On Tue, Apr 26, 2011 at 02:00:50PM +0200, Anders Logg wrote:
> >> It feels good that you trust me enough to handle it. ;-)
> >>
> >> Will add it sometime this afternoon and then we can revisit the JIT
> >> compiler caching.
> >
> > I'm getting confused here... Looking at preprocess.py in UFL, I see this:
> >
>
> It is confusing. Does the function 'preprocess' do anything that the old
> FormData class didn't? It would be easier to follow if Form just had a
> member function form_data() that computes and stores data (like it used
> to), or if Form had a 'preprocess' function. Having the function
> preprocess return a new form is really confusing.

I don't find that particularly confusing. It's the same as

  refined_mesh = refine(mesh)

--
Anders


> Garth
>
> >
> > def preprocess(form, object_names={}, common_cell=None):
> >
> >     ...
> >
> >     # Check that form is not already preprocessed
> >     if form.form_data() is not None:
> >         debug("Form is already preprocessed. Not updating form data.")
> >         return form
> >
> >     ...
> >
> >     # Attach form data to form
> >     form._form_data = form_data
> >
> >     # Attach preprocessed form to form data
> >     form_data._form = form
> >
> >
> > And when I look at the blamelist (bzr annotate), it looks like I added
> > those lines, so I must have come to my senses and added it back at
> > some point (way back). So in conclusion, calling preprocess() should
> > not taking any time.
> >
> > What am I missing?
> >