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112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/* classes: h_files */
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#ifndef SCM_THROW_H
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#define SCM_THROW_H
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/* Copyright (C) 1995,1996,1998,2000 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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#include "libguile/__scm.h"
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typedef SCM (*scm_t_catch_body) (void *data);
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typedef SCM (*scm_t_catch_handler) (void *data,
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SCM tag, SCM throw_args);
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SCM_API SCM scm_internal_catch (SCM tag,
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scm_t_catch_body body,
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void *body_data,
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scm_t_catch_handler handler,
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void *handler_data);
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SCM_API SCM scm_internal_lazy_catch (SCM tag,
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scm_t_catch_body body,
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void *body_data,
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scm_t_catch_handler handler,
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void *handler_data);
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SCM_API SCM scm_internal_stack_catch (SCM tag,
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scm_t_catch_body body,
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void *body_data,
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scm_t_catch_handler handler,
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void *handler_data);
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/* The first argument to scm_body_thunk should be a pointer to one of
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these. See the implementation of catch in throw.c. */
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struct scm_body_thunk_data
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{
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/* The tag being caught. We only use it to figure out what
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arguments to pass to the body procedure; see scm_catch_thunk_body for
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details. */
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SCM tag;
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/* The Scheme procedure object constituting the catch body.
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scm_body_by_proc invokes this. */
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SCM body_proc;
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};
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SCM_API SCM scm_body_thunk (void *);
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SCM_API SCM scm_handle_by_proc (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_proc_catching_all (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_message (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_message_noexit (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_throw (void *, SCM, SCM);
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SCM_API int scm_exit_status (SCM args);
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SCM_API SCM scm_catch (SCM tag, SCM thunk, SCM handler);
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SCM_API SCM scm_lazy_catch (SCM tag, SCM thunk, SCM handler);
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SCM_API SCM scm_ithrow (SCM key, SCM args, int noreturn);
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SCM_API SCM scm_throw (SCM key, SCM args);
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SCM_API void scm_init_throw (void);
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#endif /* SCM_THROW_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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