Class::xsaccessor implements fast xs accessors both for getting at and setting an object attribute. additionally, the module supports mutators and simple predicates like those for testing the truth value of a variable. it works only with objects that are implemented as ordinary hashes.

the xs accessor methods were between 1.6 and 2.5 times faster than typical pure-perl accessors in some simple benchmarking. if you usually write clear code, a factor of two speed-up is a good estimate.

refer to class::xsaccessor::array (also included in libclass-xsaccessor-perl) for an implementation that works with array-based objects.