NAME Symbol::Util - Additional utils for Perl symbols manipulation SYNOPSIS use Symbol::Util ':all'; my $caller = caller; *{ fetch_glob("${caller}::foo") } = sub { "this is foo" }; my $coderef = fetch_glob("${caller}::bar", "CODE"); sub baz { 42; } export_glob($caller, "baz"); print join "\n", keys %{ stash("main") }; delete_glob("${caller}::foo", "CODE"); use constant PI => 3.14159265; delete_sub "PI"; # remove constant from public API require YAML; export_package(__PACKAGE__, "YAML", "Dump"); # import YAML::Dump unexport_package(__PACKAGE, "YAML"); # remove imported symbols no Symbol::Util; # clean all symbols imported from Symbol::Util DESCRIPTION This module provides a set of additional functions useful for Perl symbols manipulation. All Perl symbols from the same package are organized as a stash. Each symbol (glob) contains one or more of following slots: `SCALAR', `ARRAY', `HASH', `CODE', `IO', `FORMAT'. These slots are also accessible as standard variables or bare words. The Perl symbols table is directly accessible with typeglob prefix but it can be difficult to read and problematic if strict mode is used. Also the access to stash, glob and one of its slot have different syntax notation. `stash' and `fetch_glob' functions gets stash or glob without need to use `no strict 'refs''. `delete_glob' function allows to delete specific slot of symbol name without deleting others. `delete_sub' removes the symbol from class API. This symbol won't be available as an object method. `export_glob' function exports a glob to the target package. `export_package' works like Exporter module and allows to export symbols from one package to other. `unexport_package' allows to delete previously exported symbols. AUTHOR Piotr Roszatycki LICENSE Copyright (c) 2009, 2012 Piotr Roszatycki . This is free software; you can redistribute it and/or modify it under the same terms as perl itself. See http://dev.perl.org/licenses/artistic.html