Source: libdevel-callsite-perl Section: perl Priority: optional Maintainer: Debian Perl Group Uploaders: Salvatore Bonaccorso Build-Depends: debhelper (>= 10), perl Standards-Version: 4.1.5 Vcs-Browser: https://salsa.debian.org/perl-team/modules/packages/libdevel-callsite-perl Vcs-Git: https://salsa.debian.org/perl-team/modules/packages/libdevel-callsite-perl.git Homepage: https://metacpan.org/release/Devel-Callsite Testsuite: autopkgtest-pkg-perl Rules-Requires-Root: no Package: libdevel-callsite-perl Architecture: any Depends: ${misc:Depends}, ${perl:Depends}, ${shlibs:Depends} Description: Perl module to get caller return OP address and Perl interpreter context Devel::Callsite module provides subroutines to get the caller return OP address and perl interpreter context. . The callsite() function returns the OP address of the caller, a number, one level up from where it was called. It's useful for functions that need to uniquely know where they were called, such as Every::every(); see Every. Or it can be used to pinpoint a location with finer granularity than a line number (see http://www.perlmonks.com/?node_id=987268). In conjunction with an OP tree disassembly you can know exactly where the caller is located in the Perl source. . The context() function returns the interpreter context as a number. This is a fairly unique number together with the call site.