Class::Accessor::Fast - Faster, but less expandable, accessors
package Foo; use base qw(Class::Accessor::Fast); # The rest as Class::Accessor except no set() or get().
This is a somewhat faster, but less expandable, version of Class::Accessor. Class::Accessor's generated accessors require two method calls to accompish their task (one for the accessor, another for get() or set()). Class::Accessor::Fast eliminates calling set()/get() and does the access itself, resulting in a somewhat faster accessor.
The downside is that you can't easily alter the behavior of your accessors, nor can your subclasses. Of course, should you need this later, you can always swap out Class::Accessor::Fast for Class::Accessor.
"EFFICIENCY" in Class::Accessor for an efficiency comparison.
Michael G Schwern <firstname.lastname@example.org>