Is this a reasonable approach to injecting a check into the "warn" call to remove certain warnings from your error stream? I would like to fix the warnings, but this is from 3rd party code, so the best I can do without rewriting their code (and introducing that mess) is to filter the errors out.

I don't want to filter all of these warnings out, just the ones from Foo::Bar.

#!perl -w
...
use Foo::Bar;
...
{
 my $lastwarn = $SIG{__WARN__};
 # Filter out garbage warnings
 $SIG{__WARN__} = sub {
   return if ($_[0] =~ m/Use of uninitialized value in subroutine.*Foo
+\/Bar.*/);
   (defined($lastwarn) && $lastwarn) ? &$lastwarn(@_) : warn(@_);
 };
}

[download]

Thanks all.

Update: Fixed error in regex.

Update 2: It appears (silly me) that the -w in the shebang line has implications (like making warnings global, for instance). I guess this is one of those "looking at the problem too long" type solutions (thanks tye).

--MidLifeXis

In reply to Injecting a filter into warn() by MidLifeXis

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