Re: [Catalyst] Catalyst crashing hard with UTF-8 string

On 8 Jul 2009, at 18:01, Paul Makepeace wrote:

>> You know it's dieing inside TT, right? So you can Data::Dumper the
>> input
>> which causes it to die to a file, write a program that instantiates
>> View::TT, calls ->render with the same input (and template), and
>> that should
>> crap out in the same way?
>
> Ya, I was kinda hoping you wouldn't say this, and that there was a way
> to catch whatever was happening in Catalyst or trace the execution
> path to get to the point where the things actually dieing.

Well, start by throwing Devel::SimpleTrace, or Carp::Always at it to
get a strack trace.

MyApp::View::TT->render is going to get called, so add something like
this to that class:

use Data::Dumper;
sub render {
my ($self, $c, $template, $args) = @_;
local $Data::Dumper::Maxdepth = 4;
warn Dumper([$template, $args]);
$self->next::method($c, $template, $args);
}

increase Maxdepth if needed until it pukes..

You should literally be able to dump the Dumper glob into a .t file,
and build a test around it....

use MyApp;
use MyApp::View::TT;

my $view = MyApp::View::TT->new(%config_your_app_gives_TT_view);
my $VAR! = # Dumper crap here

my ($template, $args) = @$VAR1;

$view->render('MyApp', $template, $args); # Should blow up, in the
'correct' way..

Cutting template / data down to smallest replicable size and throwing
away Catalyst app and using raw TT should be easy from there forwards :)

Another thought - have you tried disabling the XS stash for TT? (IIRC
there is an env var to do this) and seeing if that affects the crash?

Cheers
t0m

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