Avatar of Tolgar
 asked on

Why can't I use string as a subroutine ref while "strict refs" in use in Perl?

I get the following error after using dereferencing:

Can't use string ("errorIDsInCatchblocks") as a subroutine ref while "strict refs" in use at

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This is the code I have:

my $nonStrictCheckResult = $check->($fileTobeSubmitted);

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Why do I get this error and how can I fix it without compromising use strict?


Avatar of undefined
Last Comment

8/22/2022 - Mon

Ok. I now use eval and this fixed the previous problem. But I still have problem.

Let me show you the big picture:

I have a Perl module  (FullyqualifiedNames.pm):

#!/usr/local/apps/bat/latest/bin/perl -w
package stdModules::FullyqualifiedNames;
use strict;
use warnings;

use Exporter 'import';
our @EXPORT = qw(FullyqualifiedNames);

sub FullyqualifiedNames{
my ($file) = @_;
my @line_numbers;

open (FILE, $file) or die "Couldn't open $file: $!\n";
my @data = <FILE>;

my $lineno = 0;
my $result;

foreach my $line (@data) {
		if ($line =~ /^import(.*)\*/) {
			push (@line_numbers,$lineno);
	if (scalar(@line_numbers)) {
		#return (0,@line_numbers);
		$result = 'Fail';
		return $result;
	else {
		#return (1,@line_numbers);
		$result = 'Pass';
		return $result;

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I would like to call this module from another Perl module. In order to do that I have done the followings to the other Perl module which is called runCheck.pm

I have the following line in the beginning which makes it a package:
package stdModules::runCheck;

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I added the following line (standardsRepository is the name of the directory where FullyqualifiedNames lives.)
use standardsRepository::FullyqualifiedNames;

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Then I have some more code and finally I run the following command:
my $Result = eval "$check('$fileTobeSubmitted')";

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However, this does not return anything. Therefore, $result is undef.

Can you please let me know what I am doing wring and how I can fix it?


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