6 /* Copyright (C) 1995,1996,1998,2000, 2006, 2008, 2010, 2014 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 License
10 * as published by the Free Software Foundation; either version 3 of
11 * the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful, but
14 * 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
26 #include "libguile/__scm.h"
30 typedef SCM (*scm_t_catch_body
) (void *data
);
31 typedef SCM (*scm_t_catch_handler
) (void *data
,
32 SCM tag
, SCM throw_args
);
34 SCM_API SCM
scm_c_catch (SCM tag
,
35 scm_t_catch_body body
,
37 scm_t_catch_handler handler
,
39 scm_t_catch_handler pre_unwind_handler
,
40 void *pre_unwind_handler_data
);
42 SCM_API SCM
scm_c_with_throw_handler (SCM tag
,
43 scm_t_catch_body body
,
45 scm_t_catch_handler handler
,
49 SCM_API SCM
scm_internal_catch (SCM tag
,
50 scm_t_catch_body body
,
52 scm_t_catch_handler handler
,
55 /* The first argument to scm_body_thunk should be a pointer to one of
56 these. See the implementation of catch in throw.c. */
57 struct scm_body_thunk_data
59 /* The tag being caught. We only use it to figure out what
60 arguments to pass to the body procedure; see scm_catch_thunk_body for
64 /* The Scheme procedure object constituting the catch body.
65 scm_body_by_proc invokes this. */
69 SCM_API SCM
scm_body_thunk (void *);
72 SCM_API SCM
scm_handle_by_proc (void *, SCM
, SCM
);
73 SCM_API SCM
scm_handle_by_proc_catching_all (void *, SCM
, SCM
);
74 SCM_API SCM
scm_handle_by_message (void *, SCM
, SCM
);
75 SCM_API SCM
scm_handle_by_message_noexit (void *, SCM
, SCM
);
76 SCM_API SCM
scm_handle_by_throw (void *, SCM
, SCM
);
77 SCM_API
int scm_exit_status (SCM args
);
79 SCM_API SCM
scm_catch_with_pre_unwind_handler (SCM tag
, SCM thunk
, SCM handler
, SCM lazy_handler
);
80 SCM_API SCM
scm_catch (SCM tag
, SCM thunk
, SCM handler
);
81 SCM_API SCM
scm_with_throw_handler (SCM tag
, SCM thunk
, SCM handler
);
82 SCM_API SCM
scm_ithrow (SCM key
, SCM args
, int no_return
);
84 /* This throws to the `stack-overflow' key, without running pre-unwind
86 SCM_API
void scm_report_stack_overflow (void);
88 /* This throws to the `out-of-memory' key, without running pre-unwind
90 SCM_API
void scm_report_out_of_memory (void);
92 SCM_API SCM
scm_throw (SCM key
, SCM args
);
93 SCM_INTERNAL
void scm_init_throw (void);
95 #endif /* SCM_THROW_H */