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Mastering Modern Perl: Writing Efficient and Maintainable Code

Solution Review: Writing an AUTOLOAD() Function

Explore how to write an AUTOLOAD function in Perl to manage undefined method calls dynamically. Learn how AUTOLOAD captures function names, processes arguments, and manipulates internal counters, enhancing your ability to write flexible and maintainable code using Perl's functions.

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Solution

Let’s look at the solution before jumping into the explanation:

Perl
sub AUTOLOAD {
   my $value = shift;
   my ($name) = our $AUTOLOAD =~ /::(\w+)$/;
   $count += $value if $name eq 'increment';
   $count -= $value if $name eq 'decrement';
   
   say "count = " . $count;
}

Explanation

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