B::Hooks::OP::Check - Wrap OP check callbacks
# include "hook_op_check.h" STATIC OP *my_const_check_op (pTHX_ OP *op, void *user_data) { /* ... */ return op; } STATIC hook_op_check_id my_hook_id = 0; void setup () CODE: my_hook_id = hook_op_check (OP_CONST, my_const_check_op, NULL); void teardown () CODE: hook_op_check_remove (OP_CONST, my_hook_id);
This module provides a c api for XS modules to hook into the callbacks of PL_check
.
ExtUtils::Depends is used to export all functions for other XS modules to use. Include the following in your Makefile.PL:
my $pkg = ExtUtils::Depends->new('Your::XSModule', 'B::Hooks::OP::Check'); WriteMakefile( ... # your normal makefile flags $pkg->get_makefile_vars, );
Your XS module can now include hook_op_check.h
.
Type that callbacks need to implement.
Type to identify a callback.
Register the callback cb
to be called after the PL_check
function for opcodes of the given type
. user_data
will be passed to the callback as the last argument. Returns an id that can be used to remove the callback later on.
Remove the callback identified by id
. Returns the userdata the callback had.
Florian Ragwitz <rafl@debian.org>
Copyright (c) 2008 Florian Ragwitz
This module is free software.
You may distribute this code under the same terms as Perl itself.