What is method modifiers (before/after/around) in Perl?

Method modifiers in Perl allow you to change the behavior of methods in object-oriented programming. These modifiers can be applied to existing methods to include additional behavior before, after, or around the original method's execution.

Types of Method Modifiers

• before: Executes code before the original method.
• after: Executes code after the original method.
• around: Wraps the original method allowing you to modify its behavior.

Example of Method Modifiers

package MyClass;
use Moose;

# Define a method with a before modifier
before 'my_method' => sub {
    print "Before my_method\n";
};

# Define the method
sub my_method {
    print "Inside my_method\n";
}

# Define a method with an after modifier
after 'my_method' => sub {
    print "After my_method\n";
};

# Define a method with an around modifier
around 'my_method' => sub {
    my $orig = shift;
    print "Before the original method\n";
    $self->$orig();  # Call the original method
    print "After the original method\n";
};

# Create an instance and call the method
my $obj = MyClass->new();
$obj->my_method();