6 /* Copyright (C) 1995,1996,1998,2000, 2006 Free Software Foundation, Inc.
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.
13 * This library 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 GNU
16 * Lesser General Public License for more details.
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
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libguile/__scm.h"
29 typedef SCM (*scm_t_catch_body) (void *data);
30 typedef SCM (*scm_t_catch_handler) (void *data,
31 SCM tag, SCM throw_args);
33 SCM_API SCM scm_c_catch (SCM tag,
34 scm_t_catch_body body,
36 scm_t_catch_handler handler,
38 scm_t_catch_handler pre_unwind_handler,
39 void *pre_unwind_handler_data);
41 SCM_API SCM scm_c_with_throw_handler (SCM tag,
42 scm_t_catch_body body,
44 scm_t_catch_handler handler,
48 SCM_API SCM scm_internal_catch (SCM tag,
49 scm_t_catch_body body,
51 scm_t_catch_handler handler,
54 SCM_API SCM scm_internal_lazy_catch (SCM tag,
55 scm_t_catch_body body,
57 scm_t_catch_handler handler,
60 SCM_API SCM scm_internal_stack_catch (SCM tag,
61 scm_t_catch_body body,
63 scm_t_catch_handler handler,
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
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
75 /* The Scheme procedure object constituting the catch body.
76 scm_body_by_proc invokes this. */
80 SCM_API SCM scm_body_thunk (void *);
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);
90 SCM_API SCM scm_catch_with_pre_unwind_handler (SCM tag, SCM thunk, SCM handler, SCM lazy_handler);
91 SCM_API SCM scm_catch (SCM tag, SCM thunk, SCM handler);
92 SCM_API SCM scm_with_throw_handler (SCM tag, SCM thunk, SCM handler);
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);
96 SCM_API SCM scm_throw (SCM key, SCM args);
97 SCM_API void scm_init_throw (void);
99 #endif /* SCM_THROW_H */