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https://git.savannah.gnu.org/git/guile.git
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c2a654b7d2
Partial fix for <https://bugs.gnu.org/33044>. Reported by Tom de Vries <tdevries@suse.de>. Fix several instances of the mistake of using 'scm_from_locale_*' for C strings that originally came from a C string literal. Change several uses of 'scm_from_latin1_*' as well, to promote the practice of writing code that works for arbitrary C string literals. Also add missing years to the copyright notices of changed files, based on the git history. * libguile/debug-malloc.c, libguile/deprecation.c, libguile/error.c, libguile/eval.c, libguile/expand.c, libguile/extensions.c, libguile/filesys.c, libguile/init.c, libguile/load.c, libguile/modules.c, libguile/pairs.c, libguile/posix.c, libguile/print.c, libguile/random.c, libguile/read.c, libguile/regex-posix.c, libguile/snarf.h, libguile/srfi-13.c, libguile/stacks.c, libguile/stime.c, libguile/strports.c, libguile/values.c: Use 'scm_from_utf8_*' where appropriate.
344 lines
12 KiB
C
344 lines
12 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) 1995-2004, 2006, 2009-2011, 2013, 2014, 2017, 2018
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* 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 License
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* as published by the Free Software Foundation; either version 3 of
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* 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, but
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* 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
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* 02110-1301 USA
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*/
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/* Macros for snarfing initialization actions from C source. */
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/* Casting to a function that can take any number of arguments. */
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#define SCM_FUNC_CAST_ARBITRARY_ARGS scm_t_subr
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#ifdef SCM_ALIGNED
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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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* Some debugging options can cause the preprocessor to echo #define
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* directives to its output. Keeping the snarfing markers on separate
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* lines prevents guile-snarf from inadvertently snarfing the definition
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* of SCM_SNARF_INIT if those options are in effect.
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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_PREFIX ^^
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# define SCM_SNARF_INIT(X) SCM_SNARF_INIT_PREFIX 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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SCM_UNUSED 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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/* Always use the generic subr case. */
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#define SCM_DEFINE SCM_DEFINE_GSUBR
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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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SCM_UNUSED 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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SCM_UNUSED 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_PROC(RANAME, STR, REQ, OPT, VAR, CFN) \
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SCM_SNARF_HERE(SCM_UNUSED 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(SCM_UNUSED 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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SCM_UNUSED 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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#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_from_utf8_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_from_utf8_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_from_utf8_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_from_utf8_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_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_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_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_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. */
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#ifdef SCM_SUPPORT_STATIC_ALLOCATION
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#define SCM_IMMUTABLE_CELL(c_name, car, cdr) \
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static SCM_ALIGNED (8) SCM_UNUSED const scm_t_cell \
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c_name ## _raw_scell = \
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{ \
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SCM_PACK (car), \
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SCM_PACK (cdr) \
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}; \
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static SCM_UNUSED const SCM c_name = SCM_PACK (& c_name ## _raw_scell)
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#define SCM_IMMUTABLE_DOUBLE_CELL(c_name, car, cbr, ccr, cdr) \
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static SCM_ALIGNED (8) SCM_UNUSED const scm_t_cell \
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c_name ## _raw_cell [2] = \
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{ \
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{ SCM_PACK (car), SCM_PACK (cbr) }, \
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{ SCM_PACK (ccr), SCM_PACK (cdr) } \
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}; \
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static SCM_UNUSED const SCM c_name = SCM_PACK (& c_name ## _raw_cell)
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#define SCM_STATIC_DOUBLE_CELL(c_name, car, cbr, ccr, cdr) \
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static SCM_ALIGNED (8) SCM_UNUSED scm_t_cell \
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c_name ## _raw_cell [2] = \
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{ \
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{ SCM_PACK (car), SCM_PACK (cbr) }, \
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{ SCM_PACK (ccr), SCM_PACK (cdr) } \
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}; \
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static SCM_UNUSED SCM c_name = SCM_PACK (& c_name ## _raw_cell)
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#define SCM_IMMUTABLE_STRINGBUF(c_name, contents) \
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static SCM_UNUSED const \
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struct \
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{ \
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scm_t_bits word_0; \
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scm_t_bits word_1; \
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const char buffer[sizeof (contents)]; \
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} \
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c_name = \
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{ \
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scm_tc7_stringbuf, \
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sizeof (contents) - 1, \
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contents \
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}
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#define SCM_IMMUTABLE_STRING(c_name, contents) \
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SCM_IMMUTABLE_STRINGBUF (scm_i_paste (c_name, _stringbuf), contents); \
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SCM_IMMUTABLE_DOUBLE_CELL (c_name, \
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scm_tc7_ro_string, \
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(scm_t_bits) &scm_i_paste (c_name, \
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_stringbuf), \
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(scm_t_bits) 0, \
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(scm_t_bits) (sizeof (contents) - 1))
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#define SCM_IMMUTABLE_POINTER(c_name, ptr) \
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SCM_IMMUTABLE_CELL (c_name, scm_tc7_pointer, ptr)
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#endif /* SCM_SUPPORT_STATIC_ALLOCATION */
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/* Documentation. */
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#ifdef SCM_MAGIC_SNARF_DOCS
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#undef SCM_ASSERT
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#define SCM_ASSERT(_cond, _arg, _pos, _subr) ^^ argpos _arg _pos __LINE__ ^^
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#endif /* SCM_MAGIC_SNARF_DOCS */
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#endif /* SCM_SNARF_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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