Re: Filename of current package

caller may give you what you want.
foo.pl

use Data::Dumper;

sub callstack
{
 return caller();
}

print Dumper(callstack());
[download]

This prints

$VAR1 = 'main';
$VAR2 = 'foo.pl';
$VAR3 = 9;
[download]

Var1 is the calling package (in this case main) Var2 is the calling file Var3 is the line where it was called

Comment on Re: Filename of current package Select or Download Code

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Re: Re: Filename of current package by jaa (Friar) on Mar 22, 2004 at 19:27 UTC
Thanks for the pointer, but I'm still not able to find the filename of the package. I have played a little with caller(), but it seems to provide details of the calling program, rather than the included module? Here is more what I am looking to do: `# my.pl use My::Factory; my $obj = My::Factory->new('Apple'); ... # My/Factory.pm package My::Factory; 1; sub new{ my $factoryclass = shift; my $class = "My::" . shift; # My::Apple my $filename = $class; $filename =~ s/::/\//g; $filename .= '.pm'; # My/Apple.pm if ( -e $filename ) { require $filename; } else { die "not found: $filename"; } }` [download] Which all looks good and dandy, except that My::Factory is picked up from @INC at runtime. I thought that a package might know its own filename? Note that I don't want to pick up My::Apple from somewhere else in @INC - I want it to be in the same place as My/Factory.pm Apologies if that is not clear... Off to see if I can figure out how Carp does it... Regards Jeff	[reply] [d/l]

Replies are listed 'Best First'.

Re: Re: Filename of current package
by jaa (Friar) on Mar 22, 2004 at 19:27 UTC

Thanks for the pointer, but I'm still not able to find the filename of the package. I have played a little with caller(), but it seems to provide details of the calling program, rather than the included module?

Here is more what I am looking to do:

# my.pl
use My::Factory;

my $obj = My::Factory->new('Apple');
...
# My/Factory.pm
package My::Factory;
1;
sub new{
  my $factoryclass = shift;
  my $class = "My::" . shift; # My::Apple
  my $filename = $class;
  $filename =~ s/::/\//g;  
  $filename .= '.pm'; # My/Apple.pm
  if ( -e $filename ) {
    require $filename;
  } else {
    die "not found: $filename";
  }     
}
[download]

Which all looks good and dandy, except that My::Factory is picked up from @INC at runtime. I thought that a package might know its own filename?

Note that I don't want to pick up My::Apple from somewhere else in @INC - I want it to be in the same place as My/Factory.pm

Apologies if that is not clear...

Off to see if I can figure out how Carp does it...

Regards

Jeff

[reply]
[d/l]