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46f9baf49a
* libguile/Makefile.am (snarf-gsubr.h): New target. (BUILT_SOURCES, nodist_modinclude_HEADERS, MOSTLYCLEANFILES): Add `snarf-gsubr.h'. * libguile/procs.h (SCM_SUBR_ARITY_TO_TYPE): New macro. * libguile/snarf.h (SCM_DEFINE): Rename to... (SCM_DEFINE_GSUBR): this. (SCM_DEFINE_SUBR)[SCM_SUPPORT_STATIC_ALLOCATION]: New macro. (SCM_DEFINE_SUBR_reqX_optY_rstZ)[SCM_SUPPORT_STATIC_ALLOCATION]: New set of macros. (SCM_IMMUTABLE_SUBR): New macro.
420 lines
15 KiB
C
420 lines
15 KiB
C
/* classes: h_files */
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#ifndef SCM_SNARF_H
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#define SCM_SNARF_H
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/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004, 2006, 2009 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* Macros for snarfing initialization actions from C source. */
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#if defined(__cplusplus) || defined(GUILE_CPLUSPLUS_SNARF)
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/* This used to be "SCM (*)(...)" but GCC on RedHat 7.1 doesn't seem
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to like it.
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*/
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#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
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#else
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#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
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#endif
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#if (defined SCM_ALIGNED) && (SCM_DEBUG_TYPING_STRICTNESS <= 1)
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/* We support static allocation of some `SCM' objects. */
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# define SCM_SUPPORT_STATIC_ALLOCATION
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#endif
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/* C preprocessor token concatenation. */
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#define scm_i_paste(x, y) x ## y
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#define scm_i_paste3(a, b, c) a ## b ## c
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/* Generic macros to be used in user macro definitions.
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*
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* For example, in order to define a macro which creates ints and
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* initializes them to the result of foo (), do:
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*
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* #define SCM_FOO(NAME) \
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* SCM_SNARF_HERE (int NAME) \
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* SCM_SNARF_INIT (NAME = foo ())
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*
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* The SCM_SNARF_INIT text goes into the corresponding .x file
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* up through the first occurrence of SCM_SNARF_DOC_START on that
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* line, if any.
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*/
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#ifdef SCM_MAGIC_SNARF_INITS
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# define SCM_SNARF_HERE(X)
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# define SCM_SNARF_INIT(X) ^^ X ^:^
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# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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#else
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# ifdef SCM_MAGIC_SNARF_DOCS
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# define SCM_SNARF_HERE(X)
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# define SCM_SNARF_INIT(X)
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# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING) \
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^^ { \
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cname CNAME ^^ \
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fname FNAME ^^ \
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type TYPE ^^ \
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location __FILE__ __LINE__ ^^ \
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arglist ARGLIST ^^ \
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argsig REQ OPT VAR ^^ \
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DOCSTRING ^^ }
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# else
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# define SCM_SNARF_HERE(X) X
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# define SCM_SNARF_INIT(X)
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# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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# endif
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#endif
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#define SCM_DEFINE_GSUBR(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(\
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scm_c_define_gsubr (s_ ## FNAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) FNAME); \
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)\
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SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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#ifdef SCM_SUPPORT_STATIC_ALLOCATION
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/* Regular "subrs", i.e., few arguments. */
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#define SCM_DEFINE_SUBR(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
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SCM_SYMBOL (scm_i_paste (FNAME, __name), PRIMNAME); \
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SCM_SNARF_HERE( \
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static const char scm_i_paste (s_, FNAME) [] = PRIMNAME; \
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SCM_IMMUTABLE_SUBR (scm_i_paste (FNAME, __subr), \
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scm_i_paste (FNAME, __name), \
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REQ, OPT, VAR, &FNAME); \
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SCM FNAME ARGLIST \
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) \
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SCM_SNARF_INIT( \
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/* Initialize the procedure name (an interned symbol). */ \
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scm_i_paste (FNAME, __subr_meta_info)[0] = scm_i_paste (FNAME, __name); \
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\
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/* Define the subr. */ \
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scm_c_define (scm_i_paste (s_, FNAME), scm_i_paste (FNAME, __subr)); \
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) \
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SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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/* XXX: Eventually, we could statically allocate gsubrs as well. */
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/* These are the subrs whose arity makes it possible to define them as "raw
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subrs" (as opposed to "gsubrs"). This has to be consistent with
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`SCM_SUBR_ARITY_TO_TYPE ()' and `create_gsubr ()'. */
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#define SCM_DEFINE_SUBR_req0_opt0_rst0 SCM_DEFINE_SUBR
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#define SCM_DEFINE_SUBR_req1_opt0_rst0 SCM_DEFINE_SUBR
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#define SCM_DEFINE_SUBR_req0_opt1_rst0 SCM_DEFINE_SUBR
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#define SCM_DEFINE_SUBR_req1_opt1_rst0 SCM_DEFINE_SUBR
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#define SCM_DEFINE_SUBR_req2_opt0_rst0 SCM_DEFINE_SUBR
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#define SCM_DEFINE_SUBR_req3_opt0_rst0 SCM_DEFINE_SUBR
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#define SCM_DEFINE_SUBR_req0_opt0_rst1 SCM_DEFINE_SUBR
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#define SCM_DEFINE_SUBR_req2_opt0_rst1 SCM_DEFINE_SUBR
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/* For any other combination of required/optional/rest arguments, use
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`SCM_DEFINE_GSUBR (). */
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#include "libguile/snarf-gsubr.h"
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/* The generic subr definition macro. This macro dispatches to either
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`SCM_DEFINE_SUBR ()' or `SCM_DEFINE_GSUBR ()' depending on the arity of
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the subr being defined. */
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#define SCM_DEFINE(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
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SCM_DEFINE_SUBR_req ## REQ ## _opt ## OPT ## _rst ## VAR \
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(FNAME, PRIMNAME, \
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REQ, OPT, VAR, \
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ARGLIST, DOCSTRING)
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#else /* !SCM_SUPPORT_STATIC_ALLOCATION */
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/* Always use the generic subr case. */
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#define SCM_DEFINE SCM_DEFINE_GSUBR
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#endif /* !SCM_SUPPORT_STATIC_ALLOCATION */
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#define SCM_PRIMITIVE_GENERIC(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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static SCM g_ ## FNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(\
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g_ ## FNAME = SCM_PACK (0); \
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scm_c_define_gsubr_with_generic (s_ ## FNAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) FNAME, \
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&g_ ## FNAME); \
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)\
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SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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#define SCM_DEFINE_PUBLIC(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(\
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scm_c_define_gsubr (s_ ## FNAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) FNAME); \
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scm_c_export (s_ ## FNAME, NULL); \
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)\
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SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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#define SCM_DEFINE1(FNAME, PRIMNAME, TYPE, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(scm_c_define_subr (s_ ## FNAME, TYPE, FNAME); ) \
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SCM_SNARF_DOCS(1, FNAME, PRIMNAME, ARGLIST, 2, 0, 0, DOCSTRING)
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#define SCM_PRIMITIVE_GENERIC_1(FNAME, PRIMNAME, TYPE, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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static SCM g_ ## FNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(\
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g_ ## FNAME = SCM_PACK (0); \
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scm_c_define_subr_with_generic (s_ ## FNAME, TYPE, FNAME, &g_ ## FNAME); \
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)\
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SCM_SNARF_DOCS(1, FNAME, PRIMNAME, ARGLIST, 2, 0, 0, DOCSTRING)
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#define SCM_PROC(RANAME, STR, REQ, OPT, VAR, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR) \
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SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN))
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#define SCM_REGISTER_PROC(RANAME, STR, REQ, OPT, VAR, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR) \
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SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN);) \
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SCM_SNARF_DOCS(register, CFN, STR, (), REQ, OPT, VAR, \
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"implemented by the C function \"" #CFN "\"")
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#define SCM_GPROC(RANAME, STR, REQ, OPT, VAR, CFN, GF) \
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SCM_SNARF_HERE(\
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static const char RANAME[]=STR;\
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static SCM GF \
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)SCM_SNARF_INIT(\
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GF = SCM_PACK (0); /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
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scm_c_define_gsubr_with_generic (RANAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
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)
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#define SCM_PROC1(RANAME, STR, TYPE, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR) \
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SCM_SNARF_INIT(\
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scm_c_define_subr (RANAME, TYPE, (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN) \
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)
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#define SCM_GPROC1(RANAME, STR, TYPE, CFN, GF) \
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SCM_SNARF_HERE(\
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static const char RANAME[]=STR; \
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static SCM GF \
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)SCM_SNARF_INIT(\
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GF = SCM_PACK (0); /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
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scm_c_define_subr_with_generic (RANAME, TYPE, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
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)
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#define SCM_SYNTAX(RANAME, STR, TYPE, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR)\
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SCM_SNARF_INIT(scm_make_synt (RANAME, TYPE, CFN))
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#ifdef SCM_SUPPORT_STATIC_ALLOCATION
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# define SCM_SYMBOL(c_name, scheme_name) \
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SCM_SNARF_HERE( \
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SCM_IMMUTABLE_STRING (scm_i_paste (c_name, _string), scheme_name); \
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static SCM c_name) \
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SCM_SNARF_INIT( \
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c_name = scm_string_to_symbol (scm_i_paste (c_name, _string)) \
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)
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# define SCM_GLOBAL_SYMBOL(c_name, scheme_name) \
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SCM_SNARF_HERE( \
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SCM_IMMUTABLE_STRING (scm_i_paste (c_name, _string), scheme_name); \
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SCM c_name) \
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SCM_SNARF_INIT( \
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c_name = scm_string_to_symbol (scm_i_paste (c_name, _string)) \
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)
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#else /* !SCM_SUPPORT_STATIC_ALLOCATION */
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# define SCM_SYMBOL(c_name, scheme_name) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_symbol (scheme_name)))
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# define SCM_GLOBAL_SYMBOL(c_name, scheme_name) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_symbol (scheme_name)))
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#endif /* !SCM_SUPPORT_STATIC_ALLOCATION */
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#define SCM_KEYWORD(c_name, scheme_name) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_keyword (scheme_name)))
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#define SCM_GLOBAL_KEYWORD(c_name, scheme_name) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_keyword (scheme_name)))
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#define SCM_VARIABLE(c_name, scheme_name) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
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#define SCM_GLOBAL_VARIABLE(c_name, scheme_name) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
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#define SCM_VARIABLE_INIT(c_name, scheme_name, init_val) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
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#define SCM_GLOBAL_VARIABLE_INIT(c_name, scheme_name, init_val) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
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#define SCM_MUTEX(c_name) \
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SCM_SNARF_HERE(static scm_t_mutex c_name) \
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SCM_SNARF_INIT(scm_i_plugin_mutex_init (&c_name, &scm_i_plugin_mutex))
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#define SCM_GLOBAL_MUTEX(c_name) \
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SCM_SNARF_HERE(scm_t_mutex c_name) \
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SCM_SNARF_INIT(scm_i_plugin_mutex_init (&c_name, &scm_i_plugin_mutex))
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#define SCM_REC_MUTEX(c_name) \
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SCM_SNARF_HERE(static scm_t_rec_mutex c_name) \
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SCM_SNARF_INIT(scm_i_plugin_rec_mutex_init (&c_name, &scm_i_plugin_rec_mutex))
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#define SCM_GLOBAL_REC_MUTEX(c_name) \
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SCM_SNARF_HERE(scm_t_rec_mutex c_name) \
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SCM_SNARF_INIT(scm_i_plugin_rec_mutex_init (&c_name, &scm_i_plugin_rec_mutex))
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#define SCM_SMOB(tag, scheme_name, size) \
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SCM_SNARF_HERE(static scm_t_bits tag) \
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SCM_SNARF_INIT((tag)=scm_make_smob_type((scheme_name), (size));)
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#define SCM_GLOBAL_SMOB(tag, scheme_name, size) \
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SCM_SNARF_HERE(scm_t_bits tag) \
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SCM_SNARF_INIT((tag)=scm_make_smob_type((scheme_name), (size));)
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#define SCM_SMOB_MARK(tag, c_name, arg) \
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SCM_SNARF_HERE(static SCM c_name(SCM arg)) \
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SCM_SNARF_INIT(scm_set_smob_mark((tag), (c_name));)
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#define SCM_GLOBAL_SMOB_MARK(tag, c_name, arg) \
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SCM_SNARF_HERE(SCM c_name(SCM arg)) \
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SCM_SNARF_INIT(scm_set_smob_mark((tag), (c_name));)
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#define SCM_SMOB_FREE(tag, c_name, arg) \
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SCM_SNARF_HERE(static size_t c_name(SCM arg)) \
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SCM_SNARF_INIT(scm_set_smob_free((tag), (c_name));)
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#define SCM_GLOBAL_SMOB_FREE(tag, c_name, arg) \
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SCM_SNARF_HERE(size_t c_name(SCM arg)) \
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SCM_SNARF_INIT(scm_set_smob_free((tag), (c_name));)
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#define SCM_SMOB_PRINT(tag, c_name, obj, port, pstate) \
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SCM_SNARF_HERE(static int c_name(SCM obj, SCM port, scm_print_state* pstate)) \
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SCM_SNARF_INIT(scm_set_smob_print((tag), (c_name));)
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#define SCM_GLOBAL_SMOB_PRINT(tag, c_name, obj, port, pstate) \
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SCM_SNARF_HERE(int c_name(SCM obj, SCM port, scm_print_state* pstate)) \
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SCM_SNARF_INIT(scm_set_smob_print((tag), (c_name));)
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#define SCM_SMOB_EQUALP(tag, c_name, obj1, obj2) \
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SCM_SNARF_HERE(static SCM c_name(SCM obj1, SCM obj2)) \
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SCM_SNARF_INIT(scm_set_smob_equalp((tag), (c_name));)
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#define SCM_GLOBAL_SMOB_EQUALP(tag, c_name, obj1, obj2) \
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SCM_SNARF_HERE(SCM c_name(SCM obj1, SCM obj2)) \
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SCM_SNARF_INIT(scm_set_smob_equalp((tag), (c_name));)
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#define SCM_SMOB_APPLY(tag, c_name, req, opt, rest, arglist) \
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SCM_SNARF_HERE(static SCM c_name arglist) \
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SCM_SNARF_INIT(scm_set_smob_apply((tag), (c_name), (req), (opt), (rest));)
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#define SCM_GLOBAL_SMOB_APPLY(tag, c_name, req, opt, rest, arglist) \
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SCM_SNARF_HERE(SCM c_name arglist) \
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SCM_SNARF_INIT(scm_set_smob_apply((tag), (c_name), (req), (opt), (rest));)
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/* Low-level snarfing for static memory allocation. */
|
||
|
||
#ifdef SCM_SUPPORT_STATIC_ALLOCATION
|
||
|
||
#define SCM_IMMUTABLE_DOUBLE_CELL(c_name, car, cbr, ccr, cdr) \
|
||
static SCM_ALIGNED (8) SCM_UNUSED const scm_t_cell \
|
||
c_name ## _raw_cell [2] = \
|
||
{ \
|
||
{ SCM_PACK (car), SCM_PACK (cbr) }, \
|
||
{ SCM_PACK (ccr), SCM_PACK (cdr) } \
|
||
}; \
|
||
static SCM_UNUSED const SCM c_name = SCM_PACK (& c_name ## _raw_cell)
|
||
|
||
#define SCM_IMMUTABLE_STRINGBUF(c_name, contents) \
|
||
SCM_IMMUTABLE_DOUBLE_CELL (c_name, \
|
||
scm_tc7_stringbuf | SCM_I_STRINGBUF_F_SHARED, \
|
||
(scm_t_bits) (contents), \
|
||
(scm_t_bits) sizeof (contents) - 1, \
|
||
(scm_t_bits) 0)
|
||
|
||
#define SCM_IMMUTABLE_STRING(c_name, contents) \
|
||
SCM_IMMUTABLE_STRINGBUF (scm_i_paste (c_name, _stringbuf), contents); \
|
||
SCM_IMMUTABLE_DOUBLE_CELL (c_name, \
|
||
scm_tc7_ro_string, \
|
||
(scm_t_bits) &scm_i_paste (c_name, \
|
||
_stringbuf_raw_cell), \
|
||
(scm_t_bits) 0, \
|
||
(scm_t_bits) sizeof (contents) - 1)
|
||
|
||
#define SCM_IMMUTABLE_SUBR(c_name, name, req, opt, rest, fcn) \
|
||
static SCM_UNUSED SCM scm_i_paste (c_name, _meta_info)[2] = \
|
||
{ \
|
||
SCM_BOOL_F, /* The name, initialized at run-time. */ \
|
||
SCM_EOL /* The procedure properties. */ \
|
||
}; \
|
||
SCM_IMMUTABLE_DOUBLE_CELL (c_name, \
|
||
SCM_SUBR_ARITY_TO_TYPE (req, opt, rest), \
|
||
(scm_t_bits) fcn, \
|
||
(scm_t_bits) 0 /* no generic */, \
|
||
(scm_t_bits) & scm_i_paste (c_name, _meta_info));
|
||
|
||
#endif /* SCM_SUPPORT_STATIC_ALLOCATION */
|
||
|
||
|
||
/* Documentation. */
|
||
|
||
#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:
|
||
*/
|