Acme-JavaTrace

 view release on metacpan or  search on metacpan

README  view on Meta::CPAN

DESCRIPTION

    <buzzword> This module tries to improves the Perl programmer 
    experience by porting the Java paradigm to print stack traces, 
    which is more professional than Perl's way. </buzzword>

    This is achieved by modifying the functions warn() and die() 
    in order to replace the standard messages by complete stack traces 
    that precisely indicates how and where the error or warning occurred. 
    Other than this, their use should stay unchanged, even when using 
    die() inside eval(). 

    For a explanation of why I wrote this module, you can read the sildes 
    of my lightning talk "Entreprise Perl", available here: 
      http://maddingue.org/conferences/yapc-eu-2004/entreprise-perl/


INSTALLATION

lib/Acme/JavaTrace.pm  view on Meta::CPAN

Acme::JavaTrace - Module for using Java-like stack traces

=head1 VERSION

Version 0.08

=head1 SYNOPSIS

On the command-line:

    perl -wMAcme::JavaTrace program_with_strange_errors.pl

Inside a module:

    use Acme::JavaTrace;
    warn "some kind of non-fatal exception occured";
    die "some kind of fatal exception occured";


=head1 DESCRIPTION

C<< <buzzword> >>This module tries to improves the Perl programmer 
experience by porting the Java paradigm to print stack traces, which 
is more professional than Perl's way. C<< </buzzword> >>

This is achieved by modifying the functions C<warn()> and C<die()> 
in order to replace the standard messages by complete stack traces 
that precisely indicates how and where the error or warning occurred. 
Other than this, their use should stay unchanged, even when using 
C<die()> inside C<eval()>. 

For a explanation of why I wrote this module, you can read the slides 
of my lightning talk I<Entreprise Perl>, available here: 
L<http://maddingue.org/conferences/yapc-eu-2004/entreprise-perl/>


=head1 OPTIONS

t/03showrefs0.t  view on Meta::CPAN

use strict;
use Test::More tests => 4;
use Acme::JavaTrace;

my $text = "Advice from Klortho #11901: You can't just make shit up and expect the computer to know what you mean, Retardo!";

eval {
    die bless { type => 'error', text => $text }, 'Exception'
};

isa_ok( $@, 'HASH' );
isa_ok( $@, 'Exception' );
is( $@->{text}, $text, "checking the field text" );
is( $@->{type}, 'error', "checking the field text" );

t/03showrefs1.t  view on Meta::CPAN

use strict;
use Test::More tests => 1;
use Acme::JavaTrace 'showrefs';
use Data::Dumper;

my $text = "Advice from Klortho #11901: You cant just make shit up and expect the computer to know what you mean, Retardo!";

my @attrs = (
    $Data::Dumper::VERSION <= 2.121
        ? (text => $text)
        : (type => 'error', text => $text)
);

eval {
    die bless { @attrs }, 'Exception'
};

like( $@, 
      qq|/^Caught exception object: Exception=HASH\\(0x[0-9a-fA-F]+\\): bless\\( \\{\n|.
      qq|\\s+'text' => '\Q$text\E',?\n|.
      ($Data::Dumper::VERSION <= 2.121 ? '' : qq|\\s+'type' => 'error',?\n|) .
      qq|\\}, 'Exception' \\)/|, 
      "checking the trace"
);