[bpt/guile.git] / libguile / srcprop.c

/*	Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation
 * 
 * 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.
 *
 * The author can be reached at djurfeldt@nada.kth.se
 * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */

/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
   gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */

\f

#include <stdio.h>
#include "libguile/_scm.h"
#include "libguile/smob.h"
#include "libguile/alist.h"
#include "libguile/debug.h"
#include "libguile/hashtab.h"
#include "libguile/hash.h"
#include "libguile/ports.h"
#include "libguile/root.h"
#include "libguile/weaks.h"

#include "libguile/validate.h"
#include "libguile/srcprop.h"
\f
/* {Source Properties}
 *
 * Properties of source list expressions.
 * Five of these have special meaning and optimized storage:
 *
 * filename    string   The name of the source file.
 * copy        list     A copy of the list expression.
 * line	       integer	The source code line number.
 * column      integer	The source code column number.
 * breakpoint  boolean	Sets a breakpoint on this form.
 *
 * Most properties above can be set by the reader.
 *
 */

SCM scm_sym_filename;
SCM scm_sym_copy;
SCM scm_sym_line;
SCM scm_sym_column;
SCM scm_sym_breakpoint;

long scm_tc16_srcprops;
static scm_srcprops_chunk *srcprops_chunklist = 0;
static scm_srcprops *srcprops_freelist = 0;


static SCM
marksrcprops (SCM obj)
{
  scm_gc_mark (SRCPROPFNAME (obj));
  scm_gc_mark (SRCPROPCOPY (obj));
  return SRCPROPPLIST (obj);
}


static scm_sizet
freesrcprops (SCM obj)
{
  *((scm_srcprops **) SCM_CELL_WORD_1 (obj)) = srcprops_freelist;
  srcprops_freelist = (scm_srcprops *) SCM_CELL_WORD_1 (obj);
  return 0; /* srcprops_chunks are not freed until leaving guile */
}


static int
prinsrcprops (SCM obj,SCM port,scm_print_state *pstate)
{
  int writingp = SCM_WRITINGP (pstate);
  scm_puts ("#<srcprops ", port);
  SCM_SET_WRITINGP (pstate, 1);
  scm_iprin1 (scm_srcprops_to_plist (obj), port, pstate);
  SCM_SET_WRITINGP (pstate, writingp);
  scm_putc ('>', port);
  return 1;
}


SCM
scm_make_srcprops (int line, int col, SCM filename, SCM copy, SCM plist)
{
  register scm_srcprops *ptr;
  SCM_DEFER_INTS;
  if ((ptr = srcprops_freelist) != NULL)
    srcprops_freelist = *(scm_srcprops **)ptr;
  else
    {
      int i;
      scm_srcprops_chunk *mem;
      scm_sizet n = sizeof (scm_srcprops_chunk)
	            + sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
      SCM_SYSCALL (mem = (scm_srcprops_chunk *) malloc (n));
      SCM_ASSERT (mem, SCM_UNDEFINED, SCM_NALLOC, "srcprops");
      scm_mallocated += n;
      mem->next = srcprops_chunklist;
      srcprops_chunklist = mem;
      ptr = &mem->srcprops[0];
      for (i = 1; i < SRCPROPS_CHUNKSIZE - 1; ++i)
	*(scm_srcprops **)&ptr[i] = &ptr[i + 1];
      *(scm_srcprops **)&ptr[SRCPROPS_CHUNKSIZE - 1] = 0;
      srcprops_freelist = (scm_srcprops *) &ptr[1];
    }
  ptr->pos = SRCPROPMAKPOS (line, col);
  ptr->fname = filename;
  ptr->copy = copy;
  ptr->plist = plist;
  SCM_RETURN_NEWSMOB (scm_tc16_srcprops, ptr);
}


SCM
scm_srcprops_to_plist (SCM obj)
{
  SCM plist = SRCPROPPLIST (obj);
  if (!SCM_UNBNDP (SRCPROPCOPY (obj)))
    plist = scm_acons (scm_sym_copy, SRCPROPCOPY (obj), plist);
  if (!SCM_UNBNDP (SRCPROPFNAME (obj)))
    plist = scm_acons (scm_sym_filename, SRCPROPFNAME (obj), plist);
  plist = scm_acons (scm_sym_column, SCM_MAKINUM (SRCPROPCOL (obj)), plist);
  plist = scm_acons (scm_sym_line, SCM_MAKINUM (SRCPROPLINE (obj)), plist);
  plist = scm_acons (scm_sym_breakpoint, SRCPROPBRK (obj), plist);
  return plist;
}

SCM_DEFINE (scm_source_properties, "source-properties", 1, 0, 0, 
            (SCM obj),
"")
#define FUNC_NAME s_scm_source_properties
{
  SCM p;
  SCM_VALIDATE_NIM (1,obj);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NCONSP (obj))
    SCM_WRONG_TYPE_ARG (1, obj);
#endif
  p = scm_hashq_ref (scm_source_whash, obj, SCM_BOOL_F);
  if (SRCPROPSP (p))
    return scm_srcprops_to_plist (p);
  return SCM_EOL;
}
#undef FUNC_NAME

/* Perhaps this procedure should look through an alist
   and try to make a srcprops-object...? */
SCM_DEFINE (scm_set_source_properties_x, "set-source-properties!", 2, 0, 0,
            (SCM obj, SCM plist),
"")
#define FUNC_NAME s_scm_set_source_properties_x
{
  SCM handle;
  SCM_VALIDATE_NIM (1,obj);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NCONSP (obj))
    SCM_WRONG_TYPE_ARG(1, obj);
#endif
  handle = scm_hashq_create_handle_x (scm_source_whash, obj, plist);
  SCM_SETCDR (handle, plist);
  return plist;
}
#undef FUNC_NAME

SCM_DEFINE (scm_source_property, "source-property", 2, 0, 0,
            (SCM obj, SCM key),
"")
#define FUNC_NAME s_scm_source_property
{
  SCM p;
  SCM_VALIDATE_NIM (1,obj);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NECONSP (obj))
    SCM_WRONG_TYPE_ARG (1, obj);
#endif
  p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL);
  if (SCM_IMP (p) || !SRCPROPSP (p))
    goto plist;
  if      (SCM_EQ_P (scm_sym_breakpoint, key)) p = SRCPROPBRK (p);
  else if (SCM_EQ_P (scm_sym_line,       key)) p = SCM_MAKINUM (SRCPROPLINE (p));
  else if (SCM_EQ_P (scm_sym_column,     key)) p = SCM_MAKINUM (SRCPROPCOL (p));
  else if (SCM_EQ_P (scm_sym_filename,   key)) p = SRCPROPFNAME (p);
  else if (SCM_EQ_P (scm_sym_copy,       key)) p = SRCPROPCOPY (p);
  else
    {
      p = SRCPROPPLIST (p);
    plist:
      p = scm_assoc (key, p);
      return (SCM_NIMP (p) ? SCM_CDR (p) : SCM_BOOL_F);
    }
  return SCM_UNBNDP (p) ? SCM_BOOL_F : p;
}
#undef FUNC_NAME

SCM_DEFINE (scm_set_source_property_x, "set-source-property!", 3, 0, 0,
            (SCM obj, SCM key, SCM datum),
"")
#define FUNC_NAME s_scm_set_source_property_x
{
  scm_whash_handle h;
  SCM p;
  SCM_VALIDATE_NIM (1,obj);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NCONSP (obj))
    SCM_WRONG_TYPE_ARG (1, obj);
#endif
  h = scm_whash_get_handle (scm_source_whash, obj);
  if (SCM_WHASHFOUNDP (h))
    p = SCM_WHASHREF (scm_source_whash, h);
  else
    {
      h = scm_whash_create_handle (scm_source_whash, obj);
      p = SCM_EOL;
    }
  if (SCM_EQ_P (scm_sym_breakpoint, key))
    {
      if (SCM_FALSEP (datum))
	CLEARSRCPROPBRK (SRCPROPSP (p)
			 ? p
			 : SCM_WHASHSET (scm_source_whash, h,
					 scm_make_srcprops (0,
							    0,
							    SCM_UNDEFINED,
							    SCM_UNDEFINED,
							    p)));
      else
	SETSRCPROPBRK (SRCPROPSP (p)
		       ? p
		       : SCM_WHASHSET (scm_source_whash, h,
				       scm_make_srcprops (0,
							  0,
							  SCM_UNDEFINED,
							  SCM_UNDEFINED,
							  p)));
    }
  else if (SCM_EQ_P (scm_sym_line, key))
    {
      SCM_VALIDATE_INUM (3,datum);
      if (SRCPROPSP (p))
	SETSRCPROPLINE (p, SCM_INUM (datum));
      else
	SCM_WHASHSET (scm_source_whash, h,
		      scm_make_srcprops (SCM_INUM (datum), 0,
					 SCM_UNDEFINED, SCM_UNDEFINED, p));
    }
  else if (SCM_EQ_P (scm_sym_column, key))
    {
      SCM_VALIDATE_INUM (3,datum);
      if (SRCPROPSP (p))
	SETSRCPROPCOL (p, SCM_INUM (datum));
      else
	SCM_WHASHSET (scm_source_whash, h,
		      scm_make_srcprops (0, SCM_INUM (datum),
					 SCM_UNDEFINED, SCM_UNDEFINED, p));
    }
  else if (SCM_EQ_P (scm_sym_filename, key))
    {
      if (SRCPROPSP (p))
	SRCPROPFNAME (p) = datum;
      else
	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, datum, SCM_UNDEFINED, p));
    }
  else if (SCM_EQ_P (scm_sym_filename, key))
    {
      if (SRCPROPSP (p))
	SRCPROPCOPY (p) = datum;
      else
	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, SCM_UNDEFINED, datum, p));
    }
  else
    SCM_WHASHSET (scm_source_whash, h, scm_acons (key, datum, p));
  return SCM_UNSPECIFIED;
}
#undef FUNC_NAME


void
scm_init_srcprop ()
{
  scm_tc16_srcprops = scm_make_smob_type_mfpe ("srcprops", 0,
                                         marksrcprops, freesrcprops, prinsrcprops, NULL);
  scm_source_whash = scm_make_weak_key_hash_table (SCM_MAKINUM (2047));

  scm_sym_filename = SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED));
  scm_sym_copy = SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED));
  scm_sym_line = SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED));
  scm_sym_column = SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED));
  scm_sym_breakpoint = SCM_CAR (scm_sysintern ("breakpoint", SCM_UNDEFINED));

  scm_sysintern ("source-whash", scm_source_whash);
#include "libguile/srcprop.x"
}

void
scm_finish_srcprop ()
{
  register scm_srcprops_chunk *ptr = srcprops_chunklist, *next;
  while (ptr)
    {
      next = ptr->next;
      free ((char *) ptr);
      scm_mallocated -= sizeof (scm_srcprops_chunk)
	                + sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
      ptr = next;
    }
}

/*
  Local Variables:
  c-file-style: "gnu"
  End:
*/
Commit	Line	Data
78a0461a	1	/* Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation
575888bd MD	2	*
	3	* This program is free software; you can redistribute it and/or modify
	4	* it under the terms of the GNU General Public License as published by
	5	* the Free Software Foundation; either version 2, or (at your option)
	6	* any later version.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this software; see the file COPYING. If not, write to
82892bed JB	15	* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
82892bed JB	16	* Boston, MA 02111-1307 USA
575888bd MD	17	*
	18	* As a special exception, the Free Software Foundation gives permission
	19	* for additional uses of the text contained in its release of GUILE.
	20	*
	21	* The exception is that, if you link the GUILE library with other files
	22	* to produce an executable, this does not by itself cause the
	23	* resulting executable to be covered by the GNU General Public License.
	24	* Your use of that executable is in no way restricted on account of
	25	* linking the GUILE library code into it.
	26	*
	27	* This exception does not however invalidate any other reasons why
	28	* the executable file might be covered by the GNU General Public License.
	29	*
	30	* This exception applies only to the code released by the
	31	* Free Software Foundation under the name GUILE. If you copy
	32	* code from other Free Software Foundation releases into a copy of
	33	* GUILE, as the General Public License permits, the exception does
	34	* not apply to the code that you add in this way. To avoid misleading
	35	* anyone as to the status of such modified files, you must delete
	36	* this exception notice from them.
	37	*
	38	* If you write modifications of your own for GUILE, it is your choice
	39	* whether to permit this exception to apply to your modifications.
	40	* If you do not wish that, delete this exception notice.
	41	*
	42	* The author can be reached at djurfeldt@nada.kth.se
82892bed	43	* Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */
1bbd0b84 GB	44
	45	/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
	46	gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
	47
575888bd MD	48	\f
	49
	50	#include <stdio.h>
a0599745 MD	51	#include "libguile/_scm.h"
	52	#include "libguile/smob.h"
	53	#include "libguile/alist.h"
	54	#include "libguile/debug.h"
	55	#include "libguile/hashtab.h"
	56	#include "libguile/hash.h"
	57	#include "libguile/ports.h"
	58	#include "libguile/root.h"
	59	#include "libguile/weaks.h"
575888bd	60
a0599745 MD	61	#include "libguile/validate.h"
a0599745 MD	62	#include "libguile/srcprop.h"
575888bd MD	63	\f
	64	/* {Source Properties}
	65	*
	66	* Properties of source list expressions.
	67	* Five of these have special meaning and optimized storage:
	68	*
	69	* filename string The name of the source file.
	70	* copy list A copy of the list expression.
	71	* line integer The source code line number.
	72	* column integer The source code column number.
	73	* breakpoint boolean Sets a breakpoint on this form.
	74	*
	75	* Most properties above can be set by the reader.
	76	*
	77	*/
	78
92e5aa0e MD	79	SCM scm_sym_filename;
	80	SCM scm_sym_copy;
	81	SCM scm_sym_line;
	82	SCM scm_sym_column;
	83	SCM scm_sym_breakpoint;
575888bd	84
5c5549cb	85	long scm_tc16_srcprops;
575888bd MD	86	static scm_srcprops_chunk *srcprops_chunklist = 0;
	87	static scm_srcprops *srcprops_freelist = 0;
	88
1cc91f1b	89
575888bd	90	static SCM
1bbd0b84	91	marksrcprops (SCM obj)
575888bd	92	{
575888bd MD	93	scm_gc_mark (SRCPROPFNAME (obj));
	94	scm_gc_mark (SRCPROPCOPY (obj));
	95	return SRCPROPPLIST (obj);
	96	}
	97
1cc91f1b	98
575888bd	99	static scm_sizet
1bbd0b84	100	freesrcprops (SCM obj)
575888bd	101	{
54778cd3 DH	102	((scm_srcprops *) SCM_CELL_WORD_1 (obj)) = srcprops_freelist;
54778cd3 DH	103	srcprops_freelist = (scm_srcprops *) SCM_CELL_WORD_1 (obj);
575888bd MD	104	return 0; /* srcprops_chunks are not freed until leaving guile */
	105	}
	106
1cc91f1b	107
575888bd	108	static int
1bbd0b84	109	prinsrcprops (SCM obj,SCM port,scm_print_state *pstate)
575888bd	110	{
19402679	111	int writingp = SCM_WRITINGP (pstate);
b7f3516f	112	scm_puts ("#<srcprops ", port);
19402679 MD	113	SCM_SET_WRITINGP (pstate, 1);
	114	scm_iprin1 (scm_srcprops_to_plist (obj), port, pstate);
	115	SCM_SET_WRITINGP (pstate, writingp);
b7f3516f	116	scm_putc ('>', port);
575888bd MD	117	return 1;
	118	}
	119
1cc91f1b	120
575888bd	121	SCM
1bbd0b84	122	scm_make_srcprops (int line, int col, SCM filename, SCM copy, SCM plist)
575888bd	123	{
575888bd MD	124	register scm_srcprops *ptr;
	125	SCM_DEFER_INTS;
	126	if ((ptr = srcprops_freelist) != NULL)
	127	srcprops_freelist = (scm_srcprops *)ptr;
	128	else
	129	{
	130	int i;
	131	scm_srcprops_chunk *mem;
	132	scm_sizet n = sizeof (scm_srcprops_chunk)
	133	+ sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
	134	SCM_SYSCALL (mem = (scm_srcprops_chunk *) malloc (n));
	135	SCM_ASSERT (mem, SCM_UNDEFINED, SCM_NALLOC, "srcprops");
	136	scm_mallocated += n;
	137	mem->next = srcprops_chunklist;
	138	srcprops_chunklist = mem;
	139	ptr = &mem->srcprops[0];
	140	for (i = 1; i < SRCPROPS_CHUNKSIZE - 1; ++i)
	141	(scm_srcprops *)&ptr[i] = &ptr[i + 1];
	142	(scm_srcprops *)&ptr[SRCPROPS_CHUNKSIZE - 1] = 0;
	143	srcprops_freelist = (scm_srcprops *) &ptr[1];
	144	}
575888bd MD	145	ptr->pos = SRCPROPMAKPOS (line, col);
	146	ptr->fname = filename;
	147	ptr->copy = copy;
	148	ptr->plist = plist;
23a62151	149	SCM_RETURN_NEWSMOB (scm_tc16_srcprops, ptr);
575888bd MD	150	}
575888bd MD	151
1cc91f1b	152
575888bd	153	SCM
1bbd0b84	154	scm_srcprops_to_plist (SCM obj)
575888bd MD	155	{
	156	SCM plist = SRCPROPPLIST (obj);
	157	if (!SCM_UNBNDP (SRCPROPCOPY (obj)))
92e5aa0e	158	plist = scm_acons (scm_sym_copy, SRCPROPCOPY (obj), plist);
575888bd	159	if (!SCM_UNBNDP (SRCPROPFNAME (obj)))
92e5aa0e MD	160	plist = scm_acons (scm_sym_filename, SRCPROPFNAME (obj), plist);
	161	plist = scm_acons (scm_sym_column, SCM_MAKINUM (SRCPROPCOL (obj)), plist);
	162	plist = scm_acons (scm_sym_line, SCM_MAKINUM (SRCPROPLINE (obj)), plist);
	163	plist = scm_acons (scm_sym_breakpoint, SRCPROPBRK (obj), plist);
575888bd MD	164	return plist;
	165	}
	166
a1ec6916	167	SCM_DEFINE (scm_source_properties, "source-properties", 1, 0, 0,
1bbd0b84	168	(SCM obj),
717050c8	169	"")
1bbd0b84	170	#define FUNC_NAME s_scm_source_properties
575888bd MD	171	{
575888bd MD	172	SCM p;
6b5a304f	173	SCM_VALIDATE_NIM (1,obj);
575888bd	174	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	175	obj = SCM_MEMOIZED_EXP (obj);
	176	#ifndef SCM_RECKLESS
	177	else if (SCM_NCONSP (obj))
1bbd0b84	178	SCM_WRONG_TYPE_ARG (1, obj);
a4645b97	179	#endif
230d095f DH	180	p = scm_hashq_ref (scm_source_whash, obj, SCM_BOOL_F);
230d095f DH	181	if (SRCPROPSP (p))
575888bd MD	182	return scm_srcprops_to_plist (p);
	183	return SCM_EOL;
	184	}
1bbd0b84	185	#undef FUNC_NAME
575888bd MD	186
	187	/* Perhaps this procedure should look through an alist
	188	and try to make a srcprops-object...? */
a1ec6916	189	SCM_DEFINE (scm_set_source_properties_x, "set-source-properties!", 2, 0, 0,
1bbd0b84 GB	190	(SCM obj, SCM plist),
	191	"")
	192	#define FUNC_NAME s_scm_set_source_properties_x
575888bd MD	193	{
575888bd MD	194	SCM handle;
6b5a304f	195	SCM_VALIDATE_NIM (1,obj);
575888bd	196	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	197	obj = SCM_MEMOIZED_EXP (obj);
	198	#ifndef SCM_RECKLESS
	199	else if (SCM_NCONSP (obj))
1bbd0b84	200	SCM_WRONG_TYPE_ARG(1, obj);
a4645b97	201	#endif
575888bd MD	202	handle = scm_hashq_create_handle_x (scm_source_whash, obj, plist);
	203	SCM_SETCDR (handle, plist);
	204	return plist;
	205	}
1bbd0b84	206	#undef FUNC_NAME
575888bd	207
a1ec6916	208	SCM_DEFINE (scm_source_property, "source-property", 2, 0, 0,
1bbd0b84 GB	209	(SCM obj, SCM key),
	210	"")
	211	#define FUNC_NAME s_scm_source_property
575888bd MD	212	{
575888bd MD	213	SCM p;
6b5a304f	214	SCM_VALIDATE_NIM (1,obj);
575888bd	215	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	216	obj = SCM_MEMOIZED_EXP (obj);
a4645b97 MD	217	#ifndef SCM_RECKLESS
09a56810	218	else if (SCM_NECONSP (obj))
1bbd0b84	219	SCM_WRONG_TYPE_ARG (1, obj);
a4645b97	220	#endif
575888bd MD	221	p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL);
	222	if (SCM_IMP (p) \|\| !SRCPROPSP (p))
	223	goto plist;
54778cd3 DH	224	if (SCM_EQ_P (scm_sym_breakpoint, key)) p = SRCPROPBRK (p);
	225	else if (SCM_EQ_P (scm_sym_line, key)) p = SCM_MAKINUM (SRCPROPLINE (p));
	226	else if (SCM_EQ_P (scm_sym_column, key)) p = SCM_MAKINUM (SRCPROPCOL (p));
	227	else if (SCM_EQ_P (scm_sym_filename, key)) p = SRCPROPFNAME (p);
	228	else if (SCM_EQ_P (scm_sym_copy, key)) p = SRCPROPCOPY (p);
575888bd MD	229	else
	230	{
	231	p = SRCPROPPLIST (p);
	232	plist:
	233	p = scm_assoc (key, p);
	234	return (SCM_NIMP (p) ? SCM_CDR (p) : SCM_BOOL_F);
	235	}
	236	return SCM_UNBNDP (p) ? SCM_BOOL_F : p;
	237	}
1bbd0b84	238	#undef FUNC_NAME
575888bd	239
a1ec6916	240	SCM_DEFINE (scm_set_source_property_x, "set-source-property!", 3, 0, 0,
1bbd0b84 GB	241	(SCM obj, SCM key, SCM datum),
	242	"")
	243	#define FUNC_NAME s_scm_set_source_property_x
575888bd MD	244	{
	245	scm_whash_handle h;
	246	SCM p;
6b5a304f	247	SCM_VALIDATE_NIM (1,obj);
575888bd	248	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	249	obj = SCM_MEMOIZED_EXP (obj);
	250	#ifndef SCM_RECKLESS
	251	else if (SCM_NCONSP (obj))
1bbd0b84	252	SCM_WRONG_TYPE_ARG (1, obj);
a4645b97	253	#endif
575888bd MD	254	h = scm_whash_get_handle (scm_source_whash, obj);
	255	if (SCM_WHASHFOUNDP (h))
	256	p = SCM_WHASHREF (scm_source_whash, h);
	257	else
	258	{
	259	h = scm_whash_create_handle (scm_source_whash, obj);
	260	p = SCM_EOL;
	261	}
54778cd3	262	if (SCM_EQ_P (scm_sym_breakpoint, key))
cda139a7 MD	263	{
cda139a7 MD	264	if (SCM_FALSEP (datum))
0c95b57d	265	CLEARSRCPROPBRK (SRCPROPSP (p)
cda139a7 MD	266	? p
	267	: SCM_WHASHSET (scm_source_whash, h,
	268	scm_make_srcprops (0,
	269	0,
	270	SCM_UNDEFINED,
	271	SCM_UNDEFINED,
	272	p)));
	273	else
0c95b57d	274	SETSRCPROPBRK (SRCPROPSP (p)
575888bd MD	275	? p
575888bd MD	276	: SCM_WHASHSET (scm_source_whash, h,
cda139a7 MD	277	scm_make_srcprops (0,
	278	0,
	279	SCM_UNDEFINED,
	280	SCM_UNDEFINED,
	281	p)));
	282	}
54778cd3	283	else if (SCM_EQ_P (scm_sym_line, key))
575888bd	284	{
3b3b36dd	285	SCM_VALIDATE_INUM (3,datum);
0c95b57d	286	if (SRCPROPSP (p))
a9dbb9fd	287	SETSRCPROPLINE (p, SCM_INUM (datum));
575888bd MD	288	else
575888bd MD	289	SCM_WHASHSET (scm_source_whash, h,
a9dbb9fd MD	290	scm_make_srcprops (SCM_INUM (datum), 0,
a9dbb9fd MD	291	SCM_UNDEFINED, SCM_UNDEFINED, p));
575888bd	292	}
54778cd3	293	else if (SCM_EQ_P (scm_sym_column, key))
575888bd	294	{
3b3b36dd	295	SCM_VALIDATE_INUM (3,datum);
0c95b57d	296	if (SRCPROPSP (p))
a9dbb9fd	297	SETSRCPROPCOL (p, SCM_INUM (datum));
575888bd MD	298	else
575888bd MD	299	SCM_WHASHSET (scm_source_whash, h,
a9dbb9fd MD	300	scm_make_srcprops (0, SCM_INUM (datum),
a9dbb9fd MD	301	SCM_UNDEFINED, SCM_UNDEFINED, p));
575888bd	302	}
54778cd3	303	else if (SCM_EQ_P (scm_sym_filename, key))
575888bd	304	{
0c95b57d	305	if (SRCPROPSP (p))
575888bd MD	306	SRCPROPFNAME (p) = datum;
575888bd MD	307	else
5c5549cb	308	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, datum, SCM_UNDEFINED, p));
575888bd	309	}
54778cd3	310	else if (SCM_EQ_P (scm_sym_filename, key))
575888bd	311	{
0c95b57d	312	if (SRCPROPSP (p))
575888bd MD	313	SRCPROPCOPY (p) = datum;
575888bd MD	314	else
5c5549cb	315	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, SCM_UNDEFINED, datum, p));
575888bd MD	316	}
	317	else
	318	SCM_WHASHSET (scm_source_whash, h, scm_acons (key, datum, p));
	319	return SCM_UNSPECIFIED;
	320	}
1bbd0b84	321	#undef FUNC_NAME
575888bd	322
1cc91f1b	323
575888bd MD	324	void
575888bd MD	325	scm_init_srcprop ()
575888bd	326	{
23a62151 MD	327	scm_tc16_srcprops = scm_make_smob_type_mfpe ("srcprops", 0,
23a62151 MD	328	marksrcprops, freesrcprops, prinsrcprops, NULL);
5c5549cb	329	scm_source_whash = scm_make_weak_key_hash_table (SCM_MAKINUM (2047));
575888bd	330
92e5aa0e MD	331	scm_sym_filename = SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED));
	332	scm_sym_copy = SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED));
	333	scm_sym_line = SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED));
	334	scm_sym_column = SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED));
	335	scm_sym_breakpoint = SCM_CAR (scm_sysintern ("breakpoint", SCM_UNDEFINED));
575888bd MD	336
575888bd MD	337	scm_sysintern ("source-whash", scm_source_whash);
a0599745	338	#include "libguile/srcprop.x"
575888bd MD	339	}
	340
	341	void
	342	scm_finish_srcprop ()
	343	{
	344	register scm_srcprops_chunk ptr = srcprops_chunklist, next;
	345	while (ptr)
	346	{
	347	next = ptr->next;
	348	free ((char *) ptr);
	349	scm_mallocated -= sizeof (scm_srcprops_chunk)
	350	+ sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
5c5549cb	351	ptr = next;
575888bd MD	352	}
575888bd MD	353	}
89e00824 ML	354
	355	/*
	356	Local Variables:
	357	c-file-style: "gnu"
	358	End:
	359	*/