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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
0527e687 DH |
3 | #ifndef SCM_THROW_H |
4 | #define SCM_THROW_H | |
5 | ||
102dbb6f | 6 | /* Copyright (C) 1995,1996,1998,2000, 2006, 2008 Free Software Foundation, Inc. |
0527e687 | 7 | * |
73be1d9e MV |
8 | * This library is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
0527e687 | 12 | * |
73be1d9e | 13 | * This library is distributed in the hope that it will be useful, |
0f2d19dd | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
73be1d9e MV |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | * Lesser General Public License for more details. | |
0527e687 | 17 | * |
73be1d9e MV |
18 | * You should have received a copy of the GNU Lesser General Public |
19 | * License along with this library; if not, write to the Free Software | |
92205699 | 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
73be1d9e | 21 | */ |
0527e687 | 22 | |
0f2d19dd JB |
23 | \f |
24 | ||
b4309c3c | 25 | #include "libguile/__scm.h" |
0f2d19dd JB |
26 | |
27 | \f | |
fec45334 | 28 | |
92c2555f MV |
29 | typedef SCM (*scm_t_catch_body) (void *data); |
30 | typedef SCM (*scm_t_catch_handler) (void *data, | |
7866a09b | 31 | SCM tag, SCM throw_args); |
650fa1ab | 32 | |
43e01b1e NJ |
33 | SCM_API SCM scm_c_catch (SCM tag, |
34 | scm_t_catch_body body, | |
35 | void *body_data, | |
36 | scm_t_catch_handler handler, | |
37 | void *handler_data, | |
38 | scm_t_catch_handler pre_unwind_handler, | |
39 | void *pre_unwind_handler_data); | |
40 | ||
41 | SCM_API SCM scm_c_with_throw_handler (SCM tag, | |
42 | scm_t_catch_body body, | |
43 | void *body_data, | |
44 | scm_t_catch_handler handler, | |
45 | void *handler_data, | |
46 | int lazy_catch_p); | |
47 | ||
33b001fd MV |
48 | SCM_API SCM scm_internal_catch (SCM tag, |
49 | scm_t_catch_body body, | |
50 | void *body_data, | |
51 | scm_t_catch_handler handler, | |
52 | void *handler_data); | |
53 | ||
54 | SCM_API SCM scm_internal_lazy_catch (SCM tag, | |
55 | scm_t_catch_body body, | |
56 | void *body_data, | |
57 | scm_t_catch_handler handler, | |
58 | void *handler_data); | |
59 | ||
60 | SCM_API SCM scm_internal_stack_catch (SCM tag, | |
61 | scm_t_catch_body body, | |
62 | void *body_data, | |
63 | scm_t_catch_handler handler, | |
64 | void *handler_data); | |
95384717 | 65 | |
816a6f06 JB |
66 | /* The first argument to scm_body_thunk should be a pointer to one of |
67 | these. See the implementation of catch in throw.c. */ | |
68 | struct scm_body_thunk_data | |
69 | { | |
70 | /* The tag being caught. We only use it to figure out what | |
71 | arguments to pass to the body procedure; see scm_catch_thunk_body for | |
72 | details. */ | |
73 | SCM tag; | |
74 | ||
75 | /* The Scheme procedure object constituting the catch body. | |
76 | scm_body_by_proc invokes this. */ | |
77 | SCM body_proc; | |
78 | }; | |
79 | ||
33b001fd | 80 | SCM_API SCM scm_body_thunk (void *); |
816a6f06 JB |
81 | |
82 | ||
33b001fd MV |
83 | SCM_API SCM scm_handle_by_proc (void *, SCM, SCM); |
84 | SCM_API SCM scm_handle_by_proc_catching_all (void *, SCM, SCM); | |
85 | SCM_API SCM scm_handle_by_message (void *, SCM, SCM); | |
86 | SCM_API SCM scm_handle_by_message_noexit (void *, SCM, SCM); | |
87 | SCM_API SCM scm_handle_by_throw (void *, SCM, SCM); | |
88 | SCM_API int scm_exit_status (SCM args); | |
650fa1ab | 89 | |
43e01b1e | 90 | SCM_API SCM scm_catch_with_pre_unwind_handler (SCM tag, SCM thunk, SCM handler, SCM lazy_handler); |
33b001fd | 91 | SCM_API SCM scm_catch (SCM tag, SCM thunk, SCM handler); |
43e01b1e | 92 | SCM_API SCM scm_with_throw_handler (SCM tag, SCM thunk, SCM handler); |
33b001fd MV |
93 | SCM_API SCM scm_lazy_catch (SCM tag, SCM thunk, SCM handler); |
94 | SCM_API SCM scm_ithrow (SCM key, SCM args, int noreturn); | |
1a36eef2 | 95 | |
33b001fd | 96 | SCM_API SCM scm_throw (SCM key, SCM args); |
102dbb6f | 97 | SCM_INTERNAL void scm_init_throw (void); |
0527e687 DH |
98 | |
99 | #endif /* SCM_THROW_H */ | |
89e00824 ML |
100 | |
101 | /* | |
102 | Local Variables: | |
103 | c-file-style: "gnu" | |
104 | End: | |
105 | */ |