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1 | /* classes: h_files */ |
2 | ||
0527e687 DH |
3 | #ifndef SCM_THROW_H |
4 | #define SCM_THROW_H | |
5 | ||
6 | /* Copyright (C) 1995,1996,1998,2000 Free Software Foundation, Inc. | |
7 | * | |
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8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
0527e687 | 12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
0527e687 | 17 | * |
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18 | * You should have received a copy of the GNU General Public License |
19 | * along with this software; see the file COPYING. If not, write to | |
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20 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
21 | * Boston, MA 02111-1307 USA | |
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22 | * |
23 | * As a special exception, the Free Software Foundation gives permission | |
24 | * for additional uses of the text contained in its release of GUILE. | |
25 | * | |
26 | * The exception is that, if you link the GUILE library with other files | |
27 | * to produce an executable, this does not by itself cause the | |
28 | * resulting executable to be covered by the GNU General Public License. | |
29 | * Your use of that executable is in no way restricted on account of | |
30 | * linking the GUILE library code into it. | |
31 | * | |
32 | * This exception does not however invalidate any other reasons why | |
33 | * the executable file might be covered by the GNU General Public License. | |
34 | * | |
35 | * This exception applies only to the code released by the | |
36 | * Free Software Foundation under the name GUILE. If you copy | |
37 | * code from other Free Software Foundation releases into a copy of | |
38 | * GUILE, as the General Public License permits, the exception does | |
39 | * not apply to the code that you add in this way. To avoid misleading | |
40 | * anyone as to the status of such modified files, you must delete | |
41 | * this exception notice from them. | |
42 | * | |
43 | * If you write modifications of your own for GUILE, it is your choice | |
44 | * whether to permit this exception to apply to your modifications. | |
82892bed | 45 | * If you do not wish that, delete this exception notice. */ |
0527e687 | 46 | |
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47 | \f |
48 | ||
b4309c3c | 49 | #include "libguile/__scm.h" |
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50 | |
51 | \f | |
fec45334 | 52 | |
92c2555f MV |
53 | typedef SCM (*scm_t_catch_body) (void *data); |
54 | typedef SCM (*scm_t_catch_handler) (void *data, | |
7866a09b | 55 | SCM tag, SCM throw_args); |
650fa1ab | 56 | |
33b001fd MV |
57 | SCM_API SCM scm_internal_catch (SCM tag, |
58 | scm_t_catch_body body, | |
59 | void *body_data, | |
60 | scm_t_catch_handler handler, | |
61 | void *handler_data); | |
62 | ||
63 | SCM_API SCM scm_internal_lazy_catch (SCM tag, | |
64 | scm_t_catch_body body, | |
65 | void *body_data, | |
66 | scm_t_catch_handler handler, | |
67 | void *handler_data); | |
68 | ||
69 | SCM_API SCM scm_internal_stack_catch (SCM tag, | |
70 | scm_t_catch_body body, | |
71 | void *body_data, | |
72 | scm_t_catch_handler handler, | |
73 | void *handler_data); | |
95384717 | 74 | |
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75 | /* The first argument to scm_body_thunk should be a pointer to one of |
76 | these. See the implementation of catch in throw.c. */ | |
77 | struct scm_body_thunk_data | |
78 | { | |
79 | /* The tag being caught. We only use it to figure out what | |
80 | arguments to pass to the body procedure; see scm_catch_thunk_body for | |
81 | details. */ | |
82 | SCM tag; | |
83 | ||
84 | /* The Scheme procedure object constituting the catch body. | |
85 | scm_body_by_proc invokes this. */ | |
86 | SCM body_proc; | |
87 | }; | |
88 | ||
33b001fd | 89 | SCM_API SCM scm_body_thunk (void *); |
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90 | |
91 | ||
33b001fd MV |
92 | SCM_API SCM scm_handle_by_proc (void *, SCM, SCM); |
93 | SCM_API SCM scm_handle_by_proc_catching_all (void *, SCM, SCM); | |
94 | SCM_API SCM scm_handle_by_message (void *, SCM, SCM); | |
95 | SCM_API SCM scm_handle_by_message_noexit (void *, SCM, SCM); | |
96 | SCM_API SCM scm_handle_by_throw (void *, SCM, SCM); | |
97 | SCM_API int scm_exit_status (SCM args); | |
650fa1ab | 98 | |
33b001fd MV |
99 | SCM_API SCM scm_catch (SCM tag, SCM thunk, SCM handler); |
100 | SCM_API SCM scm_lazy_catch (SCM tag, SCM thunk, SCM handler); | |
101 | SCM_API SCM scm_ithrow (SCM key, SCM args, int noreturn); | |
1a36eef2 | 102 | |
33b001fd MV |
103 | SCM_API SCM scm_throw (SCM key, SCM args); |
104 | SCM_API void scm_init_throw (void); | |
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105 | |
106 | #endif /* SCM_THROW_H */ | |
89e00824 ML |
107 | |
108 | /* | |
109 | Local Variables: | |
110 | c-file-style: "gnu" | |
111 | End: | |
112 | */ |