On 2 Aug 2010, at 07:49, Bill Moseley wrote:

In execute() there's this code:

eval { $c->state( $code->execute( $class, $c, @{ $c->req- >args } ) || 0 ) };

$c->_stats_finish_execute( $stats_info ) if $c->use_stats and $stats_info;

    my $last = pop( @{ $c->stack } );

    if ( my $error = $@ ) {

The problem is that it's possible for the eval to fail but $@ is not set. An example is where Locale::Maketext localizes $@ so that exceptions come back with $@ undefined (for some odd reason).

In general, it's better to test the return value from eval directly instead of depend on $...@. Something like:

my $has_exception;
eval { $c->state( $code->execute( $class, $c, @{ $c->req->args } ) || 0 ); 1; } || $has_exception++;
...
if ( $has_exception ) {

Or use the "eval {....; 1 } || do { my $msg = $@; ...};" style.

I did a bit of work in DBIx::Class where I changed all the eval statements to using Try::Tiny instead. Not sure if it got into trunk yet. A similar conversion here would work.

Ton


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