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guile/libguile/keywords.c
Andy Wingo e7efe8e793 decruftify scm_sys_protects
* libguile/root.h
* libguile/root.c (scm_sys_protects): It used to be that for some reason
  we'd define a special array of "protected" values. This was a little
  silly, always, but with the BDW GC it's completely unnecessary. Also
  many of these variables were unused, and none of them were good API.
  So remove this array, and either eliminate, make static, or make
  internal the various values.

* libguile/snarf.h: No need to generate calls to scm_permanent_object.

* guile-readline/readline.c (scm_init_readline): No need to call
  scm_permanent_object.

* libguile/array-map.c (ramap, rafe): Remove the dubious nullvect
  optimizations.

* libguile/async.c (scm_init_async): No need to init scm_asyncs, it is
  no more.

* libguile/eval.c (scm_init_eval): No need to init scm_listofnull, it is
  no more.

* libguile/gc.c: Make scm_protects a static var.
  (scm_storage_prehistory): Change the sanity check to use the address
  of protects.
  (scm_init_gc_protect_object): No need to clear the scm_sys_protects,
  as it is no more.

* libguile/keywords.c: Make the keyword obarray a static var.
* libguile/numbers.c: Make flo0 a static var.
* libguile/objprop.c: Make object_whash a static var.
* libguile/properties.c: Make properties_whash a static var.

* libguile/srcprop.h:
* libguile/srcprop.c: Make scm_source_whash a global with internal
  linkage.

* libguile/strings.h:
* libguile/strings.c: Make scm_nullstr a global with internal linkage.

* libguile/vectors.c (scm_init_vectors): No need to init scm_nullvect,
  it's unused.
2009-12-05 12:38:43 +01:00

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/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004, 2006, 2008, 2009 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include "libguile/_scm.h"
#include "libguile/async.h"
#include "libguile/ports.h"
#include "libguile/root.h"
#include "libguile/smob.h"
#include "libguile/hashtab.h"
#include "libguile/validate.h"
#include "libguile/keywords.h"
#include "libguile/strings.h"
static SCM keyword_obarray;
scm_t_bits scm_tc16_keyword;
#define KEYWORDP(X) (SCM_SMOB_PREDICATE (scm_tc16_keyword, (X)))
#define KEYWORDSYM(X) (SCM_SMOB_OBJECT (X))
static int
keyword_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED)
{
scm_puts ("#:", port);
scm_display (KEYWORDSYM (exp), port);
return 1;
}
SCM_DEFINE (scm_keyword_p, "keyword?", 1, 0, 0,
(SCM obj),
"Return @code{#t} if the argument @var{obj} is a keyword, else\n"
"@code{#f}.")
#define FUNC_NAME s_scm_keyword_p
{
return scm_from_bool (KEYWORDP (obj));
}
#undef FUNC_NAME
SCM_DEFINE (scm_symbol_to_keyword, "symbol->keyword", 1, 0, 0,
(SCM symbol),
"Return the keyword with the same name as @var{symbol}.")
#define FUNC_NAME s_scm_symbol_to_keyword
{
SCM keyword;
SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, 0, NULL, "symbol");
SCM_CRITICAL_SECTION_START;
/* njrev: NEWSMOB and hashq_set_x can raise errors */
keyword = scm_hashq_ref (keyword_obarray, symbol, SCM_BOOL_F);
if (scm_is_false (keyword))
{
SCM_NEWSMOB (keyword, scm_tc16_keyword, SCM_UNPACK (symbol));
scm_hashq_set_x (keyword_obarray, symbol, keyword);
}
SCM_CRITICAL_SECTION_END;
return keyword;
}
#undef FUNC_NAME
SCM_DEFINE (scm_keyword_to_symbol, "keyword->symbol", 1, 0, 0,
(SCM keyword),
"Return the symbol with the same name as @var{keyword}.")
#define FUNC_NAME s_scm_keyword_to_symbol
{
scm_assert_smob_type (scm_tc16_keyword, keyword);
return KEYWORDSYM (keyword);
}
#undef FUNC_NAME
int
scm_is_keyword (SCM val)
{
return KEYWORDP (val);
}
SCM
scm_from_locale_keyword (const char *str)
{
return scm_symbol_to_keyword (scm_from_locale_symbol (str));
}
SCM
scm_from_locale_keywordn (const char *str, size_t len)
{
return scm_symbol_to_keyword (scm_from_locale_symboln (str, len));
}
/* njrev: critical sections reviewed so far up to here */
void
scm_init_keywords ()
{
scm_tc16_keyword = scm_make_smob_type ("keyword", 0);
scm_set_smob_print (scm_tc16_keyword, keyword_print);
keyword_obarray = scm_c_make_hash_table (0);
#include "libguile/keywords.x"
}
/*
Local Variables:
c-file-style: "gnu"
End:
*/