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/* classes: h_files */
#ifndef SCM_SNARF_H
#define SCM_SNARF_H
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
/* Macros for snarfing initialization actions from C source. */
#if defined(__cplusplus) || defined(GUILE_CPLUSPLUS_SNARF)
/* This used to be "SCM (*)(...)" but GCC on RedHat 7.1 doesn't seem
to like it.
*/
#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
#else
#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
#endif
/* Generic macros to be used in user macro definitions.
*
* For example, in order to define a macro which creates ints and
* initializes them to the result of foo (), do:
*
* #define SCM_FOO(NAME) \
* SCM_SNARF_HERE (int NAME) \
* SCM_SNARF_INIT (NAME = foo ())
*
* The SCM_SNARF_INIT text goes into the corresponding .x file
* up through the first occurrence of SCM_SNARF_DOC_START on that
* line, if any.
*/
#ifdef SCM_MAGIC_SNARF_INITS
# define SCM_SNARF_HERE(X)
# define SCM_SNARF_INIT(X) ^^ X ^:^
# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
#else
# ifdef SCM_MAGIC_SNARF_DOCS
# define SCM_SNARF_HERE(X)
# define SCM_SNARF_INIT(X)
# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING) \
^^ { \
cname CNAME ^^ \
fname FNAME ^^ \
type TYPE ^^ \
location __FILE__ __LINE__ ^^ \
arglist ARGLIST ^^ \
argsig REQ OPT VAR ^^ \
DOCSTRING ^^ }
# else
# define SCM_SNARF_HERE(X) X
# define SCM_SNARF_INIT(X)
# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
# endif
#endif
#define SCM_DEFINE(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
SCM_SNARF_HERE(\
static const char s_ ## FNAME [] = PRIMNAME; \
SCM FNAME ARGLIST\
)\
SCM_SNARF_INIT(\
scm_c_define_gsubr (s_ ## FNAME, REQ, OPT, VAR, \
(SCM_FUNC_CAST_ARBITRARY_ARGS) FNAME); \
)\
SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
#define SCM_DEFINE_PUBLIC(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
SCM_SNARF_HERE(\
static const char s_ ## FNAME [] = PRIMNAME; \
SCM FNAME ARGLIST\
)\
SCM_SNARF_INIT(\
scm_c_define_gsubr (s_ ## FNAME, REQ, OPT, VAR, \
(SCM_FUNC_CAST_ARBITRARY_ARGS) FNAME); \
scm_c_export (s_ ## FNAME, NULL); \
)\
SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
#define SCM_DEFINE1(FNAME, PRIMNAME, TYPE, ARGLIST, DOCSTRING) \
SCM_SNARF_HERE(\
static const char s_ ## FNAME [] = PRIMNAME; \
SCM FNAME ARGLIST\
)\
SCM_SNARF_INIT(scm_c_define_subr (s_ ## FNAME, TYPE, FNAME); ) \
SCM_SNARF_DOCS(1, FNAME, PRIMNAME, ARGLIST, 2, 0, 0, DOCSTRING)
#define SCM_PROC(RANAME, STR, REQ, OPT, VAR, CFN) \
SCM_SNARF_HERE(static const char RANAME[]=STR) \
SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN))
#define SCM_REGISTER_PROC(RANAME, STR, REQ, OPT, VAR, CFN) \
SCM_SNARF_HERE(static const char RANAME[]=STR) \
SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN);) \
SCM_SNARF_DOCS(register, CFN, STR, (), REQ, OPT, VAR, \
"implemented by the C function \"" #CFN "\"")
#define SCM_GPROC(RANAME, STR, REQ, OPT, VAR, CFN, GF) \
SCM_SNARF_HERE(\
static const char RANAME[]=STR;\
static SCM GF \
)SCM_SNARF_INIT(\
GF = SCM_PACK (0); /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
scm_c_define_gsubr_with_generic (RANAME, REQ, OPT, VAR, \
(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
)
#define SCM_PROC1(RANAME, STR, TYPE, CFN) \
SCM_SNARF_HERE(static const char RANAME[]=STR) \
SCM_SNARF_INIT(\
scm_c_define_subr (RANAME, TYPE, (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN) \
)
#define SCM_GPROC1(RANAME, STR, TYPE, CFN, GF) \
SCM_SNARF_HERE(\
static const char RANAME[]=STR; \
static SCM GF \
)SCM_SNARF_INIT(\
GF = SCM_PACK (0); /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
scm_c_define_subr_with_generic (RANAME, TYPE, \
(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
)
#define SCM_SYNTAX(RANAME, STR, TYPE, CFN) \
SCM_SNARF_HERE(static const char RANAME[]=STR)\
SCM_SNARF_INIT(scm_make_synt (RANAME, TYPE, CFN))
#define SCM_SYMBOL(c_name, scheme_name) \
SCM_SNARF_HERE(static SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_str2symbol (scheme_name)))
#define SCM_GLOBAL_SYMBOL(c_name, scheme_name) \
SCM_SNARF_HERE(SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_str2symbol (scheme_name)))
#define SCM_KEYWORD(c_name, scheme_name) \
SCM_SNARF_HERE(static SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_make_keyword (scheme_name)))
#define SCM_GLOBAL_KEYWORD(c_name, scheme_name) \
SCM_SNARF_HERE(SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_make_keyword (scheme_name)))
#define SCM_VARIABLE(c_name, scheme_name) \
SCM_SNARF_HERE(static SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
#define SCM_GLOBAL_VARIABLE(c_name, scheme_name) \
SCM_SNARF_HERE(SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
#define SCM_VARIABLE_INIT(c_name, scheme_name, init_val) \
SCM_SNARF_HERE(static SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
#define SCM_GLOBAL_VARIABLE_INIT(c_name, scheme_name, init_val) \
SCM_SNARF_HERE(SCM c_name) \
SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
#define SCM_NONREC_CRITICAL_SECTION(prefix) \
SCM_SNARF_HERE(static scm_t_mutex prefix ## _mutex) \
SCM_SNARF_INIT(scm_i_plugin_mutex_init (&prefix ## _mutex, 0))
#define SCM_GLOBAL_NONREC_CRITICAL_SECTION(prefix) \
SCM_SNARF_HERE(scm_t_mutex prefix ## _mutex) \
SCM_SNARF_INIT(scm_i_plugin_mutex_init (&prefix ## _mutex, 0))
#define SCM_REC_CRITICAL_SECTION(prefix) \
SCM_SNARF_HERE(\
static scm_t_mutex prefix ## _mutex; \
static int prefix ## _count; \
static scm_thread *prefix ## _owner\
)SCM_SNARF_INIT(\
scm_i_plugin_mutex_init (&prefix ## _mutex, 0)\
)
#define SCM_GLOBAL_REC_CRITICAL_SECTION(prefix) \
SCM_SNARF_HERE(\
scm_t_mutex prefix ## _mutex; \
int prefix ## _count; \
scm_thread *prefix ## _owner\
)SCM_SNARF_INIT(\
scm_i_plugin_mutex_init (&prefix ## _mutex, 0); \
prefix ## _count = 0; \
prefix ## _owner = 0\
)
#ifdef SCM_MAGIC_SNARF_DOCS
#undef SCM_ASSERT
#define SCM_ASSERT(_cond, _arg, _pos, _subr) ^^ argpos _arg _pos __LINE__ ^^
#endif /* SCM_MAGIC_SNARF_DOCS */
#endif /* SCM_SNARF_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/
|
