Bioperl: State of the art in perl Exception modules?

[Ewan Birney]

On Mon, 15 Nov 1999, Mr P.A. Van Heusden wrote:

> 
> Hi Ewan
> 
> I've now been playing with BioPerl exceptions for a while (as I convert my
> code into children of Bio::Root::Object), and they seem to work well (I
> like the debugging output they give when not caught). As you say, though,

sorry for teh delay in replying..


> it is pretty much an all or nothing case. 
> 
> There are essentially, as I see it, two ways forward for refining this:
> 
> 1) Standardize on an 'exception string' like:
> 
>  $self->throw('IO ERROR: blah blah');
> 
> or
> 
> 2) Allow for exception classes - so
> 
>  $self->throw('IOERROR', 'blah blah');
> 
> The tendency in exception schemes I've seen seems to be to use the second.
> Would it be worthwhile working on this for BioPerl?

Yes - I think it would. At the same time we could think about clearing up
the root object and discarding crud (A good thing in my view). Why
don't you make a proposal on guts about how it should work etc.

> 
> Peter
> --
> Peter van Heusden : pvanheus@hgmp.mrc.ac.uk : PGP key available
> Criticism has torn up the imaginary flowers from the chain not so that man
> shall wear the unadorned, bleak chain but so that he will shake off the 
> chain and pluck the living flower. - Karl Marx 
>            NOTE: I do not speak for the HGMP or the MRC.
> 
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