v6 is a module for the Perl

Perl

Perl is a high-level, general-purpose, interpreted, dynamic programming language. Perl was originally developed by Larry Wall in 1987 as a general-purpose Unix scripting language to make report processing easier. Since then, it has undergone many changes and revisions and become widely popular...

 programming language which runs under Perl version 5, and transforms Perl 6

Perl 6

Perl 6 is a major revision to the Perl programming language. It is still in development, as a specification from which several interpreter and compiler implementations are being written. It is introducing elements of many modern and historical languages. Perl 6 is intended to have many...

 code into Perl 5 code on the fly. To quote the release notes:

In summary: Perl 5 is now a first-class virtual machine for Pugs, and in this journey toward self-hosting, we will share as much common structure as possible between the Perl 5, Haskell, and the Parrot runtimes.

Components

v6 has many parts, divided into a stack of services which can be used to write Perl 6 code directly, or to implement Perl 6 features in Perl 5 programs.

Moose

Moose

Moose (Perl)

Moose is an extension of the Perl 5 object system. It brings modern object-oriented language features to Perl 5, making object-oriented programming more consistent and less tedious.-Features:...

 and other modules such as Class::MOP provide a low-level emulation of Perl 6's object model and meta-object protocol. This object model can be used directly or through v6.

Pugs::Grammar::Rule

Pugs::Grammar::Rule provides access to Perl 6's "rules", which are a superset

SuperSet

SuperSet Software was a group founded by friends and former Eyring Research Institute co-workers Drew Major, Dale Neibaur, Kyle Powell and later joined by Mark Hurst...

of classic regex functionality which allow the development of entire grammars.

Data::Bind

Data::Bind provides the parameter binding features of Perl 6, including named parameters.

Module::Compile

Module::Compile is like a source-filter, but is safer for real-world code development. It is this module which allows v6 to parse Perl 6 code and directly translate it into Perl 5 code which is then executed.