Hello,

In all my modules I use $SIG{__WARN__} to log warnings in a logfile. This ensures warnings are never overlooked. However, it seems some warnings cannot be caught: 

package Test;

use strict;
use warnings;

sub new {
    my $this = shift;
    my $class = ref($this) || $this;
    my $self = {};
    bless($self, $class);

    $SIG{'__WARN__'} = sub { print 'WARNING: '.$_[0]; };

    return $self;
}

sub A {
    my $self = shift;

    warn 'This will trigger $SIG{__WARN__}';
}

sub B {
    my $self = shift;

    $self->NonExistingFunction();
}

my $test = Test->new();
$test->A();
$test->B();

[download]
The output is: 

WARNING: This will trigger $SIG{__WARN__} at test.pl line 20.
Can't locate object method "NonExistingFunction" via package "Test" at
+ test.pl line 26.

[download]
So the fatal error triggered when calling a non-existing method is not caught.

How can I accomplish this?

Best regards,

Marcel

In reply to Catching warnings by Marcello

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