libconst-fast-perl - 0.014-1 main

Const::Fast is a perl module for creating read-only scalars, arrays,
and hashes. It enables you to set a variable to the given value and
subsequently make it readonly. Arrays and hashes will be made deeply
readonly.
.
This module uses the builtin readonly feature of perl, making access
to the variables just as fast as any normal variable without the
weird side-effects of ties.