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

/*	Copyright (C) 1995,1996,1997,1998 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 */
\f

#include <stdio.h>
#include "_scm.h"
#include "smob.h"
#include "genio.h"
#include "alist.h"
#include "debug.h"
#include "hashtab.h"
#include "hash.h"
#include "weaks.h"

#include "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_P ((SCM obj));

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


static scm_sizet freesrcprops SCM_P ((SCM obj));

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


static int prinsrcprops SCM_P ((SCM obj, SCM port, scm_print_state *pstate));

static int
prinsrcprops (obj, port, pstate)
     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 (line, col, filename, copy, plist)
     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 (obj)
     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_PROC (s_source_properties, "source-properties", 1, 0, 0, scm_source_properties);

SCM
scm_source_properties (obj)
     SCM obj;
{
  SCM p;
  SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_source_properties);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NCONSP (obj))
    scm_wrong_type_arg (s_source_properties, 1, obj);
#endif
  p = scm_hashq_ref (scm_source_whash, obj, (SCM) NULL);
  if (p != (SCM) NULL && SRCPROPSP (p))
    return scm_srcprops_to_plist (p);
  return SCM_EOL;
}

/* Perhaps this procedure should look through an alist
   and try to make a srcprops-object...? */
SCM_PROC (s_set_source_properties_x, "set-source-properties!", 2, 0, 0, scm_set_source_properties_x);

SCM
scm_set_source_properties_x (obj, plist)
     SCM obj;
     SCM plist;
{
  SCM handle;
  SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_set_source_properties_x);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NCONSP (obj))
    scm_wrong_type_arg (s_set_source_properties_x, 1, obj);
#endif
  handle = scm_hashq_create_handle_x (scm_source_whash, obj, plist);
  SCM_SETCDR (handle, plist);
  return plist;
}

SCM_PROC (s_source_property, "source-property", 2, 0, 0, scm_source_property);

SCM
scm_source_property (obj, key)
     SCM obj;
     SCM key;
{
  SCM p;
  SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_source_property);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NCONSP (obj))
    scm_wrong_type_arg (s_source_property, 1, obj);
#endif
  p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL);
  if (SCM_IMP (p) || !SRCPROPSP (p))
    goto plist;
  if      (scm_sym_breakpoint == key) p = SRCPROPBRK (p);
  else if (scm_sym_line       == key) p = SCM_MAKINUM (SRCPROPLINE (p));
  else if (scm_sym_column     == key) p = SCM_MAKINUM (SRCPROPCOL (p));
  else if (scm_sym_filename   == key) p = SRCPROPFNAME (p);
  else if (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;
}

SCM_PROC (s_set_source_property_x, "set-source-property!", 3, 0, 0, scm_set_source_property_x);

SCM
scm_set_source_property_x (obj, key, datum)
     SCM obj;
     SCM key;
     SCM datum;
{
  scm_whash_handle h;
  SCM p;
  SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_set_source_property_x);
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOIZED_EXP (obj);
#ifndef SCM_RECKLESS
  else if (SCM_NCONSP (obj))
    scm_wrong_type_arg (s_set_source_property_x, 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_sym_breakpoint == key)
    {
      if (SCM_FALSEP (datum))
	CLEARSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p)
			 ? p
			 : SCM_WHASHSET (scm_source_whash, h,
					 scm_make_srcprops (0,
							    0,
							    SCM_UNDEFINED,
							    SCM_UNDEFINED,
							    p)));
      else
	SETSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p)
		       ? p
		       : SCM_WHASHSET (scm_source_whash, h,
				       scm_make_srcprops (0,
							  0,
							  SCM_UNDEFINED,
							  SCM_UNDEFINED,
							  p)));
    }
  else if (scm_sym_line == key)
    {
      SCM_ASSERT (SCM_INUMP (datum),
		  datum, SCM_ARG3, s_set_source_property_x);
      if (SCM_NIMP (p) && 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_sym_column == key)
    {
      SCM_ASSERT (SCM_INUMP (datum),
		  datum, SCM_ARG3, s_set_source_property_x);
      if (SCM_NIMP (p) && 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_sym_filename == key)
    {
      if (SCM_NIMP (p) && SRCPROPSP (p))
	SRCPROPFNAME (p) = datum;
      else
	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, datum, SCM_UNDEFINED, p));
    }
  else if (scm_sym_filename == key)
    {
      if (SCM_NIMP (p) && 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;
}


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 "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;
    }
}
Commit	Line	Data
7dc6e754	1	/* Copyright (C) 1995,1996,1997,1998 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 */
575888bd MD	44	\f
	45
	46	#include <stdio.h>
	47	#include "_scm.h"
20e6290e	48	#include "smob.h"
56366edf	49	#include "genio.h"
20e6290e JB	50	#include "alist.h"
	51	#include "debug.h"
	52	#include "hashtab.h"
5c5549cb	53	#include "hash.h"
20e6290e	54	#include "weaks.h"
575888bd	55
20e6290e	56	#include "srcprop.h"
575888bd MD	57	\f
	58	/* {Source Properties}
	59	*
	60	* Properties of source list expressions.
	61	* Five of these have special meaning and optimized storage:
	62	*
	63	* filename string The name of the source file.
	64	* copy list A copy of the list expression.
	65	* line integer The source code line number.
	66	* column integer The source code column number.
	67	* breakpoint boolean Sets a breakpoint on this form.
	68	*
	69	* Most properties above can be set by the reader.
	70	*
	71	*/
	72
92e5aa0e MD	73	SCM scm_sym_filename;
	74	SCM scm_sym_copy;
	75	SCM scm_sym_line;
	76	SCM scm_sym_column;
	77	SCM scm_sym_breakpoint;
575888bd	78
5c5549cb	79	long scm_tc16_srcprops;
575888bd MD	80	static scm_srcprops_chunk *srcprops_chunklist = 0;
	81	static scm_srcprops *srcprops_freelist = 0;
	82
1cc91f1b JB	83
	84	static SCM marksrcprops SCM_P ((SCM obj));
	85
575888bd MD	86	static SCM
	87	marksrcprops (obj)
	88	SCM obj;
575888bd	89	{
575888bd MD	90	scm_gc_mark (SRCPROPFNAME (obj));
	91	scm_gc_mark (SRCPROPCOPY (obj));
	92	return SRCPROPPLIST (obj);
	93	}
	94
1cc91f1b JB	95
	96	static scm_sizet freesrcprops SCM_P ((SCM obj));
	97
575888bd MD	98	static scm_sizet
	99	freesrcprops (obj)
	100	SCM obj;
575888bd MD	101	{
	102	((scm_srcprops *) SCM_CDR (obj)) = srcprops_freelist;
	103	srcprops_freelist = (scm_srcprops *) SCM_CDR (obj);
	104	return 0; /* srcprops_chunks are not freed until leaving guile */
	105	}
	106
1cc91f1b JB	107
	108	static int prinsrcprops SCM_P ((SCM obj, SCM port, scm_print_state *pstate));
	109
575888bd	110	static int
19402679	111	prinsrcprops (obj, port, pstate)
575888bd MD	112	SCM obj;
575888bd MD	113	SCM port;
19402679	114	scm_print_state *pstate;
575888bd	115	{
19402679	116	int writingp = SCM_WRITINGP (pstate);
b7f3516f	117	scm_puts ("#<srcprops ", port);
19402679 MD	118	SCM_SET_WRITINGP (pstate, 1);
	119	scm_iprin1 (scm_srcprops_to_plist (obj), port, pstate);
	120	SCM_SET_WRITINGP (pstate, writingp);
b7f3516f	121	scm_putc ('>', port);
575888bd MD	122	return 1;
	123	}
	124
1cc91f1b	125
575888bd	126	SCM
5c5549cb	127	scm_make_srcprops (line, col, filename, copy, plist)
575888bd MD	128	int line;
	129	int col;
	130	SCM filename;
	131	SCM copy;
	132	SCM plist;
575888bd	133	{
575888bd MD	134	register scm_srcprops *ptr;
	135	SCM_DEFER_INTS;
	136	if ((ptr = srcprops_freelist) != NULL)
	137	srcprops_freelist = (scm_srcprops *)ptr;
	138	else
	139	{
	140	int i;
	141	scm_srcprops_chunk *mem;
	142	scm_sizet n = sizeof (scm_srcprops_chunk)
	143	+ sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
	144	SCM_SYSCALL (mem = (scm_srcprops_chunk *) malloc (n));
	145	SCM_ASSERT (mem, SCM_UNDEFINED, SCM_NALLOC, "srcprops");
	146	scm_mallocated += n;
	147	mem->next = srcprops_chunklist;
	148	srcprops_chunklist = mem;
	149	ptr = &mem->srcprops[0];
	150	for (i = 1; i < SRCPROPS_CHUNKSIZE - 1; ++i)
	151	(scm_srcprops *)&ptr[i] = &ptr[i + 1];
	152	(scm_srcprops *)&ptr[SRCPROPS_CHUNKSIZE - 1] = 0;
	153	srcprops_freelist = (scm_srcprops *) &ptr[1];
	154	}
575888bd MD	155	ptr->pos = SRCPROPMAKPOS (line, col);
	156	ptr->fname = filename;
	157	ptr->copy = copy;
	158	ptr->plist = plist;
23a62151	159	SCM_RETURN_NEWSMOB (scm_tc16_srcprops, ptr);
575888bd MD	160	}
575888bd MD	161
1cc91f1b	162
575888bd MD	163	SCM
	164	scm_srcprops_to_plist (obj)
	165	SCM obj;
575888bd MD	166	{
	167	SCM plist = SRCPROPPLIST (obj);
	168	if (!SCM_UNBNDP (SRCPROPCOPY (obj)))
92e5aa0e	169	plist = scm_acons (scm_sym_copy, SRCPROPCOPY (obj), plist);
575888bd	170	if (!SCM_UNBNDP (SRCPROPFNAME (obj)))
92e5aa0e MD	171	plist = scm_acons (scm_sym_filename, SRCPROPFNAME (obj), plist);
	172	plist = scm_acons (scm_sym_column, SCM_MAKINUM (SRCPROPCOL (obj)), plist);
	173	plist = scm_acons (scm_sym_line, SCM_MAKINUM (SRCPROPLINE (obj)), plist);
	174	plist = scm_acons (scm_sym_breakpoint, SRCPROPBRK (obj), plist);
575888bd MD	175	return plist;
	176	}
	177
	178	SCM_PROC (s_source_properties, "source-properties", 1, 0, 0, scm_source_properties);
1cc91f1b	179
575888bd MD	180	SCM
	181	scm_source_properties (obj)
	182	SCM obj;
575888bd MD	183	{
575888bd MD	184	SCM p;
a4645b97	185	SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_source_properties);
575888bd	186	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	187	obj = SCM_MEMOIZED_EXP (obj);
	188	#ifndef SCM_RECKLESS
	189	else if (SCM_NCONSP (obj))
	190	scm_wrong_type_arg (s_source_properties, 1, obj);
	191	#endif
575888bd MD	192	p = scm_hashq_ref (scm_source_whash, obj, (SCM) NULL);
	193	if (p != (SCM) NULL && SRCPROPSP (p))
	194	return scm_srcprops_to_plist (p);
	195	return SCM_EOL;
	196	}
	197
	198	/* Perhaps this procedure should look through an alist
	199	and try to make a srcprops-object...? */
	200	SCM_PROC (s_set_source_properties_x, "set-source-properties!", 2, 0, 0, scm_set_source_properties_x);
1cc91f1b	201
575888bd MD	202	SCM
	203	scm_set_source_properties_x (obj, plist)
	204	SCM obj;
	205	SCM plist;
575888bd MD	206	{
575888bd MD	207	SCM handle;
a4645b97	208	SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_set_source_properties_x);
575888bd	209	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	210	obj = SCM_MEMOIZED_EXP (obj);
	211	#ifndef SCM_RECKLESS
	212	else if (SCM_NCONSP (obj))
	213	scm_wrong_type_arg (s_set_source_properties_x, 1, obj);
	214	#endif
575888bd MD	215	handle = scm_hashq_create_handle_x (scm_source_whash, obj, plist);
	216	SCM_SETCDR (handle, plist);
	217	return plist;
	218	}
	219
	220	SCM_PROC (s_source_property, "source-property", 2, 0, 0, scm_source_property);
1cc91f1b	221
575888bd MD	222	SCM
	223	scm_source_property (obj, key)
	224	SCM obj;
	225	SCM key;
575888bd MD	226	{
575888bd MD	227	SCM p;
a4645b97	228	SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_source_property);
575888bd	229	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	230	obj = SCM_MEMOIZED_EXP (obj);
	231	#ifndef SCM_RECKLESS
	232	else if (SCM_NCONSP (obj))
	233	scm_wrong_type_arg (s_source_property, 1, obj);
	234	#endif
575888bd MD	235	p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL);
	236	if (SCM_IMP (p) \|\| !SRCPROPSP (p))
	237	goto plist;
92e5aa0e MD	238	if (scm_sym_breakpoint == key) p = SRCPROPBRK (p);
	239	else if (scm_sym_line == key) p = SCM_MAKINUM (SRCPROPLINE (p));
	240	else if (scm_sym_column == key) p = SCM_MAKINUM (SRCPROPCOL (p));
	241	else if (scm_sym_filename == key) p = SRCPROPFNAME (p);
	242	else if (scm_sym_copy == key) p = SRCPROPCOPY (p);
575888bd MD	243	else
	244	{
	245	p = SRCPROPPLIST (p);
	246	plist:
	247	p = scm_assoc (key, p);
	248	return (SCM_NIMP (p) ? SCM_CDR (p) : SCM_BOOL_F);
	249	}
	250	return SCM_UNBNDP (p) ? SCM_BOOL_F : p;
	251	}
	252
	253	SCM_PROC (s_set_source_property_x, "set-source-property!", 3, 0, 0, scm_set_source_property_x);
1cc91f1b	254
575888bd MD	255	SCM
	256	scm_set_source_property_x (obj, key, datum)
	257	SCM obj;
	258	SCM key;
	259	SCM datum;
575888bd MD	260	{
	261	scm_whash_handle h;
	262	SCM p;
a4645b97	263	SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_set_source_property_x);
575888bd	264	if (SCM_MEMOIZEDP (obj))
a4645b97 MD	265	obj = SCM_MEMOIZED_EXP (obj);
	266	#ifndef SCM_RECKLESS
	267	else if (SCM_NCONSP (obj))
	268	scm_wrong_type_arg (s_set_source_property_x, 1, obj);
	269	#endif
575888bd MD	270	h = scm_whash_get_handle (scm_source_whash, obj);
	271	if (SCM_WHASHFOUNDP (h))
	272	p = SCM_WHASHREF (scm_source_whash, h);
	273	else
	274	{
	275	h = scm_whash_create_handle (scm_source_whash, obj);
	276	p = SCM_EOL;
	277	}
92e5aa0e	278	if (scm_sym_breakpoint == key)
cda139a7 MD	279	{
	280	if (SCM_FALSEP (datum))
	281	CLEARSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p)
	282	? p
	283	: SCM_WHASHSET (scm_source_whash, h,
	284	scm_make_srcprops (0,
	285	0,
	286	SCM_UNDEFINED,
	287	SCM_UNDEFINED,
	288	p)));
	289	else
	290	SETSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p)
575888bd MD	291	? p
575888bd MD	292	: SCM_WHASHSET (scm_source_whash, h,
cda139a7 MD	293	scm_make_srcprops (0,
	294	0,
	295	SCM_UNDEFINED,
	296	SCM_UNDEFINED,
	297	p)));
	298	}
92e5aa0e	299	else if (scm_sym_line == key)
575888bd	300	{
a9dbb9fd MD	301	SCM_ASSERT (SCM_INUMP (datum),
a9dbb9fd MD	302	datum, SCM_ARG3, s_set_source_property_x);
575888bd	303	if (SCM_NIMP (p) && SRCPROPSP (p))
a9dbb9fd	304	SETSRCPROPLINE (p, SCM_INUM (datum));
575888bd MD	305	else
575888bd MD	306	SCM_WHASHSET (scm_source_whash, h,
a9dbb9fd MD	307	scm_make_srcprops (SCM_INUM (datum), 0,
a9dbb9fd MD	308	SCM_UNDEFINED, SCM_UNDEFINED, p));
575888bd	309	}
92e5aa0e	310	else if (scm_sym_column == key)
575888bd	311	{
a9dbb9fd MD	312	SCM_ASSERT (SCM_INUMP (datum),
a9dbb9fd MD	313	datum, SCM_ARG3, s_set_source_property_x);
575888bd	314	if (SCM_NIMP (p) && SRCPROPSP (p))
a9dbb9fd	315	SETSRCPROPCOL (p, SCM_INUM (datum));
575888bd MD	316	else
575888bd MD	317	SCM_WHASHSET (scm_source_whash, h,
a9dbb9fd MD	318	scm_make_srcprops (0, SCM_INUM (datum),
a9dbb9fd MD	319	SCM_UNDEFINED, SCM_UNDEFINED, p));
575888bd	320	}
92e5aa0e	321	else if (scm_sym_filename == key)
575888bd MD	322	{
	323	if (SCM_NIMP (p) && SRCPROPSP (p))
	324	SRCPROPFNAME (p) = datum;
	325	else
5c5549cb	326	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, datum, SCM_UNDEFINED, p));
575888bd	327	}
92e5aa0e	328	else if (scm_sym_filename == key)
575888bd MD	329	{
	330	if (SCM_NIMP (p) && SRCPROPSP (p))
	331	SRCPROPCOPY (p) = datum;
	332	else
5c5549cb	333	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, SCM_UNDEFINED, datum, p));
575888bd MD	334	}
	335	else
	336	SCM_WHASHSET (scm_source_whash, h, scm_acons (key, datum, p));
	337	return SCM_UNSPECIFIED;
	338	}
	339
1cc91f1b	340
575888bd MD	341	void
575888bd MD	342	scm_init_srcprop ()
575888bd	343	{
23a62151 MD	344	scm_tc16_srcprops = scm_make_smob_type_mfpe ("srcprops", 0,
23a62151 MD	345	marksrcprops, freesrcprops, prinsrcprops, NULL);
5c5549cb	346	scm_source_whash = scm_make_weak_key_hash_table (SCM_MAKINUM (2047));
575888bd	347
92e5aa0e MD	348	scm_sym_filename = SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED));
	349	scm_sym_copy = SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED));
	350	scm_sym_line = SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED));
	351	scm_sym_column = SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED));
	352	scm_sym_breakpoint = SCM_CAR (scm_sysintern ("breakpoint", SCM_UNDEFINED));
575888bd MD	353
	354	scm_sysintern ("source-whash", scm_source_whash);
	355	#include "srcprop.x"
	356	}
	357
	358	void
	359	scm_finish_srcprop ()
	360	{
	361	register scm_srcprops_chunk ptr = srcprops_chunklist, next;
	362	while (ptr)
	363	{
	364	next = ptr->next;
	365	free ((char *) ptr);
	366	scm_mallocated -= sizeof (scm_srcprops_chunk)
	367	+ sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
5c5549cb	368	ptr = next;
575888bd MD	369	}
575888bd MD	370	}