NAME
Contextual::Call - call sub with caller's context
VERSION
Version 0.01
SYNOPSIS
use Contextual::Call qw(ccall);
# invoke sub with your context.
my $cc = ccall($coderef);
... some processes ..
# and return value which was returned by $coderef and
# is matched with context.
return $cc->result;
DESCRIPTION
"ccall" function can invoke a function undef specified context (default is caller's context) and reproduce return value of that invocation.
This function is useful when you will override a method which returns different values between scalar and list context.
EXPORT
This module can export ccall
function.
FUNCTIONS
ccall
$cc = ccall($coderef);
Call specified code-ref with your context, and return a Contextual::Call object which contains result of that call. You can get the result appropriate for context.
This function is shortcut to "new" constructor.
CONSTRUCTOR
new
$obj = Contextual::Call->new({ context => wantarray, sub => $coderef });
Call specified code-ref with your context, and return a Contextual::Call object. This method is OO-style of "ccall" function.
METHODS
result
return $obj->result();
Return result value with same context with ccall/new.
AUTHOR
YAMASHINA Hio, <hio at cpan.org>
BUGS
Please report any bugs or feature requests to bug-contextual-call at rt.cpan.org
, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Contextual-Call. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Contextual::Call
You can also look for information at:
AnnoCPAN: Annotated CPAN documentation
CPAN Ratings
RT: CPAN's request tracker
Search CPAN
ACKNOWLEDGEMENTS
COPYRIGHT & LICENSE
Copyright 2007 YAMASHINA Hio, all rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.