Commit | Line | Data |
---|---|---|
0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef THROWH | |
4 | #define THROWH | |
5 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this software; see the file COPYING. If not, write to | |
19 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | * | |
21 | * As a special exception, the Free Software Foundation gives permission | |
22 | * for additional uses of the text contained in its release of GUILE. | |
23 | * | |
24 | * The exception is that, if you link the GUILE library with other files | |
25 | * to produce an executable, this does not by itself cause the | |
26 | * resulting executable to be covered by the GNU General Public License. | |
27 | * Your use of that executable is in no way restricted on account of | |
28 | * linking the GUILE library code into it. | |
29 | * | |
30 | * This exception does not however invalidate any other reasons why | |
31 | * the executable file might be covered by the GNU General Public License. | |
32 | * | |
33 | * This exception applies only to the code released by the | |
34 | * Free Software Foundation under the name GUILE. If you copy | |
35 | * code from other Free Software Foundation releases into a copy of | |
36 | * GUILE, as the General Public License permits, the exception does | |
37 | * not apply to the code that you add in this way. To avoid misleading | |
38 | * anyone as to the status of such modified files, you must delete | |
39 | * this exception notice from them. | |
40 | * | |
41 | * If you write modifications of your own for GUILE, it is your choice | |
42 | * whether to permit this exception to apply to your modifications. | |
43 | * If you do not wish that, delete this exception notice. | |
44 | */ | |
45 | \f | |
46 | ||
b4309c3c | 47 | #include "libguile/__scm.h" |
0f2d19dd JB |
48 | |
49 | \f | |
fec45334 | 50 | |
650fa1ab JB |
51 | typedef SCM (*scm_catch_body_t) SCM_P ((void *data, SCM jmpbuf)); |
52 | typedef SCM (*scm_catch_handler_t) SCM_P ((void *data, | |
53 | SCM tag, SCM throw_args)); | |
54 | ||
55 | extern SCM scm_internal_catch SCM_P ((SCM tag, | |
56 | scm_catch_body_t body, | |
816a6f06 | 57 | void *body_data, |
650fa1ab | 58 | scm_catch_handler_t handler, |
816a6f06 JB |
59 | void *handler_data)); |
60 | ||
ccbfefb7 JB |
61 | extern SCM scm_internal_lazy_catch SCM_P ((SCM tag, |
62 | scm_catch_body_t body, | |
63 | void *body_data, | |
64 | scm_catch_handler_t handler, | |
65 | void *handler_data)); | |
66 | ||
816a6f06 JB |
67 | /* The first argument to scm_body_thunk should be a pointer to one of |
68 | these. See the implementation of catch in throw.c. */ | |
69 | struct scm_body_thunk_data | |
70 | { | |
71 | /* The tag being caught. We only use it to figure out what | |
72 | arguments to pass to the body procedure; see scm_catch_thunk_body for | |
73 | details. */ | |
74 | SCM tag; | |
75 | ||
76 | /* The Scheme procedure object constituting the catch body. | |
77 | scm_body_by_proc invokes this. */ | |
78 | SCM body_proc; | |
79 | }; | |
80 | ||
81 | extern SCM scm_body_thunk SCM_P ((void *, SCM)); | |
82 | ||
83 | ||
84 | extern SCM scm_handle_by_proc SCM_P ((void *, SCM, SCM)); | |
85 | extern SCM scm_handle_by_message SCM_P ((void *, SCM, SCM)); | |
650fa1ab | 86 | |
d6c7f2de | 87 | extern SCM scm_catch SCM_P ((SCM tag, SCM thunk, SCM handler)); |
f3b85c26 | 88 | extern SCM scm_lazy_catch SCM_P ((SCM tag, SCM thunk, SCM handler)); |
d6c7f2de JB |
89 | extern SCM scm_ithrow SCM_P ((SCM key, SCM args, int noreturn)); |
90 | extern SCM scm_throw SCM_P ((SCM key, SCM args)); | |
91 | extern void scm_init_throw SCM_P ((void)); | |
0f2d19dd | 92 | #endif /* THROWH */ |