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B::Hooks::OP::Check::StashChange.3pm
Langue: en
Version: 2009-04-19 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
NAME
B::Hooks::OP::Check::StashChange - Invoke callbacks when the stash code is being compiled in changesSYNOPSIS
From Perl
package Foo; use B::Hooks::OP::Check::StashChange; our $id = B::Hooks::OP::Check::StashChange::register(sub { my ($new, $old) = @_; warn "${old} -> ${new}"; }); package Bar; # "Foo -> Bar" B::Hooks::OP::Check::StashChange::unregister($Foo::id); package Moo; # callback not invoked
From C/XS
#include "hooks_op_check_stashchange.h" STATIC OP * my_callback (pTHX_ OP *op, char *new_stash, char *old_stash, void *user_data) { /* ... */ return op; } UV id; /* register callback */ id = hook_op_check_stashchange (cv, my_callback, NULL); /* unregister */ hook_op_check_stashchange_remove (id);
DESCRIPTION
Perl API
register
B::Hooks::OP::Check:: # or my $id = B::Hooks::OP::Check::StashChange::register(\&callback);
Register "callback" when an opcode is being compiled in a different namespace than the previous one.
An id that can be used for later removal of the handler using "unregister" is returned.
unregister
B::Hooks::OP::Check::StashChange::unregister($id);
Disable the callback referenced by $id.
C API
TYPES
OP *(*hook_op_check_stashchange_cb) (pTHX_ OP *op, const char *new_stash, const char *old_stash, void *user_data)The type the callbacks need to implement.
FUNCTIONS
UV hook_op_check_stashchange (hook_op_check_stashchange_cb cb, void *user_data)Register the callback "cb" to be when an opcode is compiled in a different namespace than the previous. "user_data" will be passed to the callback as the last argument.
Returns an id that can be used to remove the handler using "hook_op_check_stashchange_remove".
void *hook_op_check_stashchange_remove (UV id)
Remove a previously registered handler referred to by "id".
Returns the user data that was associated with the handler.
SEE ALSO
B::Hooks::OP::CheckAUTHOR
Florian Ragwitz <rafl@debian.org>COPYRIGHT AND LICENSE
Copyright (c) 2008 Florian RagwitzThis module is free software.
You may distribute this code under the same terms as Perl itself.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre