This module implements lexical scoping of subroutines. Although it can be used directly, it is mainly intended to be infrastructure for modules that manage namespaces. This module influences the meaning of single-part subroutine names that appear dir...

Using this module will give your code the illusion of having lexically scoped subroutines. This is because where ever a sub is lexically declared it will really just turn into a "my()"ed scalar pointing to a coderef. However the lexically scoped subs...

Sub::Exporter::Lexical provides an alternate installer for Sub::Exporter. Installers are documented in Sub::Exporter's documentation; all you need to know is that by using Sub::Exporter::Lexical's installer, you can import routines into a lexical sco...

Not documented yet....

This module allows to dynamically inject lexical subs during compilation. It is implemented using lexical subroutines introduced in perl 5.18. This is a low level library. It is meant for cases where subroutine names and bodies are to be treated as d...

This module provides a C and Perl API for replacing subroutine calls by custom opcodes. This has two main advantages : * it gets rid of the overhead of a normal subroutine call ; * there's no symbol table entry defined for the subroutine. Subroutine ...

This module 'cleans' subroutines you mark with the "Cleaned" attribute, preventing them being called from places they haven't been already been bound by the perl compiler. The main advantage in this is that you can declare subroutines and use them in...

Sub::Lazy allows you to mark subs as candidates for lazy evaluation. Good candidates for lazy evaluation: * Have no side-effects. They don't alter global variables; they don't make use of any closed-over lexical variables; they don't do IO or make sy...

This package provides performant ways to generate subroutines from strings....

This module provides one function, "delete_sub", that deletes the subroutine whose name is passed to it. (To load the module without importing the function, write "use Sub::Delete();".) This does more than simply undefine the subroutine in the manner...

This module allows a function to be augmented with a filter that will be applied to its return values. Whenever the function returns, by whatever means, the value (or list of values) being returned is passed through the filter before going to the cal...

This module provides syntactic sugar for lambda abstractions and applications. Perl supports lambdas through subroutine references. You can write things like the curried addition: sub { my ($x) = @_; sub { my ($y) = @_; $x + $y } } However, this is n...

The Sub::Assert module implements subroutine pre- and postconditions. Furthermore, it allows restricting the subroutine's calling context. There's one big gotcha with this: It's slow. For every call to subroutines you use assert() with, you pay for t...

The compose() function takes any number of subroutine references and creates a new subroutine reference from them that * Executes the code from the 1st with the parameters passed in * Executes the code from (N+1)th with the return value from the Nth....

This module contains functions that examine and modify data that Perl attaches to subroutines....

ACHTUNG! If you're not familiar with Exporter or exporting, read Sub::Exporter::Tutorial first! Why Generators? The biggest benefit of Sub::Exporter over existing exporters (including the ubiquitous Exporter.pm) is its ability to build new coderefs f...

Recursive closures suffer from a severe memory leak. "Sub::Recursive" makes the problem go away cleanly and at the same time allows you to write recursive subroutines as expressions and can make them truly anonymous. There's no significant speed diff...

This module provides optional checking of subroutine existence at compile time. This checking detects mistyped subroutine names and subroutines that the programmer forgot to import. Traditionally Perl does not detect these errors until runtime, so it...

Sub::Parameters provides a syntactic sugar for parameter parsing. It's primary interface is via attributes, you first apply notation to the subroutine that you wish it to use extended parameter passing, and of what style with the WantParams attribute...

This module provides a facility to delay an action on a subroutine until the subroutine's body (the code that will be run when the subroutine is called) has been attached to the subroutine object. This is mainly useful in implementing subroutine attr...