[Bioperl-l] Bio::Root::RootI->throw($msg,$class) overloading?

[Hilmar Lapp]

I think it does this already, except that I believe you need to  
create the exception object and initialize with the message upfront.

Steve, can you comment? Is this at least somewhat right?

	-hilmar

On Jul 11, 2006, at 4:58 AM, Rutger Vos wrote:

> Dear all,
>
> would it be possible to overload Bio::Root::RootI's 'throw' method to
> accept an additional, optional (positional) argument to define the
> exception class, e.g. using Exception::Class:
>
> # ...somewhere ...
>
> sub makefh {
>     my ( $self, $filename ) = @_;
>     open my $fh, '<' $filename or $self->throw("Can't open file: $!",
> 'Bio::Exceptions::FileIO'); # NOTE second argument
>     return $fh;
> }
>
> #.... somewhere else
> my $fh;
> eval {
>     $fh = $obj->makefh( 'data.txt');
> }
> if ( $@ and $@->isa('Bio::Exceptions::FileIO') ) {
>     # something's wrong with the file?
> }
>
> -- 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++
> Rutger Vos, PhD. candidate
> Department of Biological Sciences
> Simon Fraser University
> 8888 University Drive
> Burnaby, BC, V5A1S6
> Phone: 604-291-5625
> Fax: 604-291-3496
> Personal site: http://www.sfu.ca/~rvosa
> FAB* lab: http://www.sfu.ca/~fabstar
> Bio::Phylo: http://search.cpan.org/~rvosa/Bio-Phylo/
> ++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
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-- 
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: Hilmar Lapp  -:-  Durham, NC  -:-  hlapp at gmx dot net :
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