1B::Hooks::OP::Check(3)User Contributed Perl DocumentationB::Hooks::OP::Check(3)
2
3
4

NAME

6       B::Hooks::OP::Check - Wrap OP check callbacks
7

VERSION

9       version 0.22
10

SYNOPSIS

12           # include "hook_op_check.h"
13
14           STATIC OP *my_const_check_op (pTHX_ OP *op, void *user_data) {
15               /* ... */
16               return op;
17           }
18
19           STATIC hook_op_check_id my_hook_id = 0;
20
21           void
22           setup ()
23               CODE:
24                   my_hook_id = hook_op_check (OP_CONST, my_const_check_op, NULL);
25
26           void
27           teardown ()
28               CODE:
29                   hook_op_check_remove (OP_CONST, my_hook_id);
30

DESCRIPTION

32       This module provides a C API for XS modules to hook into the callbacks
33       of "PL_check".
34
35       ExtUtils::Depends is used to export all functions for other XS modules
36       to use. Include the following in your Makefile.PL:
37
38           my $pkg = ExtUtils::Depends->new('Your::XSModule', 'B::Hooks::OP::Check');
39           WriteMakefile(
40               ... # your normal makefile flags
41               $pkg->get_makefile_vars,
42           );
43
44       Your XS module can now include "hook_op_check.h".
45

TYPES

47   typedef OP *(*hook_op_check_cb) (pTHX_ OP *, void *);
48       Type that callbacks need to implement.
49
50   typedef UV hook_op_check_id
51       Type to identify a callback.
52

FUNCTIONS

54   hook_op_check_id hook_op_check (opcode type, hook_op_check_cb cb, void
55       *user_data)
56       Register the callback "cb" to be called after the "PL_check" function
57       for opcodes of the given "type". "user_data" will be passed to the
58       callback as the last argument. Returns an id that can be used to remove
59       the callback later on.
60
61   void *hook_op_check_remove (opcode type, hook_op_check_id id)
62       Remove the callback identified by "id". Returns the user_data that the
63       callback had.
64

SUPPORT

66       Bugs may be submitted through the RT bug tracker
67       <https://rt.cpan.org/Public/Dist/Display.html?Name=B-Hooks-OP-Check>
68       (or bug-B-Hooks-OP-Check@rt.cpan.org <mailto:bug-B-Hooks-OP-
69       Check@rt.cpan.org>).
70

AUTHOR

72       Florian Ragwitz <rafl@debian.org>
73

CONTRIBUTORS

75       ·   Karen Etheridge <ether@cpan.org>
76
77       ·   Zefram <zefram@fysh.org>
78
79       ·   Alexandr Ciornii <alexchorny@gmail.com>
80

82       This software is copyright (c) 2008 by Florian Ragwitz.
83
84       This is free software; you can redistribute it and/or modify it under
85       the same terms as the Perl 5 programming language system itself.
86
87
88
89perl v5.32.0                      2020-07-28            B::Hooks::OP::Check(3)
Impressum