I have a module that provides some global variables and a few common subs. Some of the variables are set to default values. I presume I can assume that the values will be set before any code that uses the module can call any of the subs in the module. Is that a safe assumption if there are no BEGIN blocks involved? Example:

use strict;
use warnings;

package noname;

require Exporter;
our @ISA = ('Exporter');

our @EXPORT = qw($globalVariable UseVariable);

my $globalVariable = 'Default value';


sub UseVariable {
    print $globalVariable;
}

1;

package main;

noname::UseVariable ();
[download]

Prints:

Default value
[download]

If package main is in another file can this code bite me ($globalVariable used before it is initialised)?

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