11 Apr 2017 07:18:17 UTC
- Distribution: Sub-Identify
- Module version: 0.14
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- License: perl_5
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Sub::Identify - Retrieve names of code references
use Sub::Identify ':all'; my $subname = sub_name( $some_coderef ); my $packagename = stash_name( $some_coderef ); # or, to get all at once... my $fully_qualified_name = sub_fullname( $some_coderef ); defined $subname and say "this coderef points to sub $subname in package $packagename"; my ($file, $line) = get_code_location( $some_coderef ); $file and say "this coderef is defined at line $line in file $file"; is_sub_constant( $some_coderef ) and say "this coderef points to a constant subroutine";
Sub::Identifyallows you to retrieve the real name of code references.
It provides six functions, all of them taking a code reference.
sub_namereturns the name of the code reference passed as an argument (or
__ANON__if it's an anonymous code reference),
stash_namereturns its package, and
sub_fullnamereturns the concatenation of the two.
get_code_inforeturns a list of two elements, the package and the subroutine name (in case of you want both and are worried by the speed.)
In case of subroutine aliasing, those functions always return the original name.
get_code_locationreturns a two-element list containing the file name and the line number where the subroutine has been defined.
is_sub_constantreturns a boolean value indicating whether the subroutine is a constant or not.
Sub::Identifytries to load an XS implementation of the
get_code_locationand (on perl versions 5.16.0 and later)
is_sub_constantfunctions, for speed; if that fails, or if the environment variable
PERL_SUB_IDENTIFY_PPis defined to a true value, it will fall back to a pure perl implementation, that uses perl's introspection mechanism, provided by the
A git repository for the sources is at https://github.com/rgs/Sub-Identify.
(c) Rafael Garcia-Suarez (rgs at consttype dot org) 2005, 2008, 2012, 2014, 2015
This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.
Module Install Instructions
To install Sub::Identify, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell install Sub::Identify
For more information on module installation, please visit the detailed CPAN module installation guide.