NAME

Devel::Callsite - Get current callsite and interpreter context

SYNOPSIS

use Devel::Callsite;
sub $site { return callsite() };
print $site->(), "\n"; # prints one number
print $site->(), "\n"; # prints a different number

print context(), "\n"; # prints the interpreter context, a number

DESCRIPTION

The callsite() function returns the callsite (a number) one level up from where it was called. See the tests for an example. It's useful for functions that need to uniquely know where they were called, such as Every::every() (see CPAN for that module).

The context() function returns the interpreter context as a number. This is a fairly unique number together with the call site.

HISTORY

Written by Ben Morrow on perl5-porters. CPAN-ified by Ted Zlatanov.

AUTHOR

Ben Morrow <ben@morrow.me.uk> Ted Zlatanov <tzz@lifelogs.com>