יובל קוג'מן (Yuval Kogman) > B-XSUB-Dumber > B::XSUB::Dumber

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NAME ^

B::XSUB::Dumber - B::OPCheck demo for microoptimizing XSUB invocation.

SYNOPSIS ^

        use Scalar::Util qw(blessed reftype);

        {
                use B::XSUB::Dumber qw(blessed reftype);
                reftype($thingy);
        }

DESCRIPTION ^

Certain XSUBs don't need lots of fluff from pp_entersub to be invoked since they don't do anything fancy. For XSUBs fitting this description this module lexically replaces the implementation of the entersub ops calling them with a much simpler version that doesn't do anything except invoke the XSUB function pointer from the CV.

This is meant mostly as a demo of the sort of thing B::OPCheck lets you do, so please don't take it too seriously or rely on it in any way.

VERSION CONTROL ^

This module is maintained using Darcs. You can get the latest version from http://nothingmuch.woobling.org/code, and use darcs send to commit changes.

AUTHOR ^

Yuval Kogman <nothingmuch@woobling.org>

COPYRIGHT ^

        Copyright (c) 2008 Yuval Kogman. All rights reserved
        This program is free software; you can redistribute
        it and/or modify it under the same terms as Perl itself.
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