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

/*	Copyright (C) 1995,1996 Mikael Djurfeldt
 * 
 * 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, 675 Mass Ave, Cambridge, MA 02139, 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 "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_i_copy;
static SCM scm_i_breakpoint, scm_i_line, scm_i_column;
static SCM scm_i_filename;

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_SETGC8MARK (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_gen_puts (scm_regular_string, "#<srcprops ", port);
  SCM_SET_WRITINGP (pstate, 1);
  scm_iprin1 (scm_srcprops_to_plist (obj), port, pstate);
  SCM_SET_WRITINGP (pstate, writingp);
  scm_gen_putc ('>', port);
  return 1;
}

static scm_smobfuns srcpropssmob =
{marksrcprops, freesrcprops, prinsrcprops, 0};


SCM
scm_make_srcprops (line, col, filename, copy, plist)
     int line;
     int col;
     SCM filename;
     SCM copy;
     SCM plist;
{
  register SCM ans;
  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];
    }
  SCM_NEWCELL (ans);
  SCM_CAR (ans) = scm_tc16_srcprops;
  ptr->pos = SRCPROPMAKPOS (line, col);
  ptr->fname = filename;
  ptr->copy = copy;
  ptr->plist = plist;
  SCM_CDR (ans) = (SCM) ptr;
  SCM_ALLOW_INTS;
  return ans;
}


SCM
scm_srcprops_to_plist (obj)
     SCM obj;
{
  SCM plist = SRCPROPPLIST (obj);
  if (!SCM_UNBNDP (SRCPROPCOPY (obj)))
    plist = scm_acons (scm_i_copy, SRCPROPCOPY (obj), plist);
  if (!SCM_UNBNDP (SRCPROPFNAME (obj)))
    plist = scm_acons (scm_i_filename, SRCPROPFNAME (obj), plist);
  plist = scm_acons (scm_i_column, SCM_MAKINUM (SRCPROPCOL (obj)), plist);
  plist = scm_acons (scm_i_line, SCM_MAKINUM (SRCPROPLINE (obj)), plist);
  plist = scm_acons (scm_i_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;
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOEXP (obj);
  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;
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOEXP (obj);
  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;
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOEXP (obj);
  p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL);
  if (SCM_IMP (p) || !SRCPROPSP (p))
    goto plist;
  if      (scm_i_breakpoint == key) p = SRCPROPBRK (p);
  else if (scm_i_line       == key) p = SCM_MAKINUM (SRCPROPLINE (p));
  else if (scm_i_column     == key) p = SCM_MAKINUM (SRCPROPCOL (p));
  else if (scm_i_filename   == key) p = SRCPROPFNAME (p);
  else if (scm_i_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;
  if (SCM_MEMOIZEDP (obj))
    obj = SCM_MEMOEXP (obj);
  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_i_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_i_line == key)
    {
      if (SCM_NIMP (p) && SRCPROPSP (p))
	SETSRCPROPLINE (p, datum);
      else
	SCM_WHASHSET (scm_source_whash, h,
		  scm_make_srcprops (datum, 0, SCM_UNDEFINED, SCM_UNDEFINED, p));
    }
  else if (scm_i_column == key)
    {
      if (SCM_NIMP (p) && SRCPROPSP (p))
	SETSRCPROPCOL (p, datum);
      else
	SCM_WHASHSET (scm_source_whash, h,
		  scm_make_srcprops (0, datum, SCM_UNDEFINED, SCM_UNDEFINED, p));
    }
  else if (scm_i_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_i_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_newsmob (&srcpropssmob);
  scm_source_whash = scm_make_weak_key_hash_table (SCM_MAKINUM (2047));

  scm_i_filename = SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED));
  scm_i_copy = SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED));
  scm_i_line = SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED));
  scm_i_column = SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED));
  scm_i_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
575888bd MD	1	/* Copyright (C) 1995,1996 Mikael Djurfeldt
	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
	15	* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	16	*
	17	* As a special exception, the Free Software Foundation gives permission
	18	* for additional uses of the text contained in its release of GUILE.
	19	*
	20	* The exception is that, if you link the GUILE library with other files
	21	* to produce an executable, this does not by itself cause the
	22	* resulting executable to be covered by the GNU General Public License.
	23	* Your use of that executable is in no way restricted on account of
	24	* linking the GUILE library code into it.
	25	*
	26	* This exception does not however invalidate any other reasons why
	27	* the executable file might be covered by the GNU General Public License.
	28	*
	29	* This exception applies only to the code released by the
	30	* Free Software Foundation under the name GUILE. If you copy
	31	* code from other Free Software Foundation releases into a copy of
	32	* GUILE, as the General Public License permits, the exception does
	33	* not apply to the code that you add in this way. To avoid misleading
	34	* anyone as to the status of such modified files, you must delete
	35	* this exception notice from them.
	36	*
	37	* If you write modifications of your own for GUILE, it is your choice
	38	* whether to permit this exception to apply to your modifications.
	39	* If you do not wish that, delete this exception notice.
	40	*
	41	* The author can be reached at djurfeldt@nada.kth.se
	42	* Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN
	43	*/
	44	\f
	45
	46	#include <stdio.h>
	47	#include "_scm.h"
20e6290e JB	48	#include "smob.h"
	49	#include "alist.h"
	50	#include "debug.h"
	51	#include "hashtab.h"
5c5549cb	52	#include "hash.h"
20e6290e	53	#include "weaks.h"
575888bd	54
20e6290e	55	#include "srcprop.h"
575888bd MD	56	\f
	57	/* {Source Properties}
	58	*
	59	* Properties of source list expressions.
	60	* Five of these have special meaning and optimized storage:
	61	*
	62	* filename string The name of the source file.
	63	* copy list A copy of the list expression.
	64	* line integer The source code line number.
	65	* column integer The source code column number.
	66	* breakpoint boolean Sets a breakpoint on this form.
	67	*
	68	* Most properties above can be set by the reader.
	69	*
	70	*/
	71
	72	SCM scm_i_copy;
	73	static SCM scm_i_breakpoint, scm_i_line, scm_i_column;
	74	static SCM scm_i_filename;
	75
5c5549cb	76	long scm_tc16_srcprops;
575888bd MD	77	static scm_srcprops_chunk *srcprops_chunklist = 0;
	78	static scm_srcprops *srcprops_freelist = 0;
	79
1cc91f1b JB	80
	81	static SCM marksrcprops SCM_P ((SCM obj));
	82
575888bd MD	83	static SCM
	84	marksrcprops (obj)
	85	SCM obj;
575888bd MD	86	{
	87	SCM_SETGC8MARK (obj);
	88	scm_gc_mark (SRCPROPFNAME (obj));
	89	scm_gc_mark (SRCPROPCOPY (obj));
	90	return SRCPROPPLIST (obj);
	91	}
	92
1cc91f1b JB	93
	94	static scm_sizet freesrcprops SCM_P ((SCM obj));
	95
575888bd MD	96	static scm_sizet
	97	freesrcprops (obj)
	98	SCM obj;
575888bd MD	99	{
	100	((scm_srcprops *) SCM_CDR (obj)) = srcprops_freelist;
	101	srcprops_freelist = (scm_srcprops *) SCM_CDR (obj);
	102	return 0; /* srcprops_chunks are not freed until leaving guile */
	103	}
	104
1cc91f1b JB	105
	106	static int prinsrcprops SCM_P ((SCM obj, SCM port, scm_print_state *pstate));
	107
575888bd	108	static int
19402679	109	prinsrcprops (obj, port, pstate)
575888bd MD	110	SCM obj;
575888bd MD	111	SCM port;
19402679	112	scm_print_state *pstate;
575888bd	113	{
19402679	114	int writingp = SCM_WRITINGP (pstate);
575888bd	115	scm_gen_puts (scm_regular_string, "#<srcprops ", port);
19402679 MD	116	SCM_SET_WRITINGP (pstate, 1);
	117	scm_iprin1 (scm_srcprops_to_plist (obj), port, pstate);
	118	SCM_SET_WRITINGP (pstate, writingp);
575888bd MD	119	scm_gen_putc ('>', port);
	120	return 1;
	121	}
	122
	123	static scm_smobfuns srcpropssmob =
	124	{marksrcprops, freesrcprops, prinsrcprops, 0};
	125
1cc91f1b	126
575888bd	127	SCM
5c5549cb	128	scm_make_srcprops (line, col, filename, copy, plist)
575888bd MD	129	int line;
	130	int col;
	131	SCM filename;
	132	SCM copy;
	133	SCM plist;
575888bd MD	134	{
	135	register SCM ans;
	136	register scm_srcprops *ptr;
	137	SCM_DEFER_INTS;
	138	if ((ptr = srcprops_freelist) != NULL)
	139	srcprops_freelist = (scm_srcprops *)ptr;
	140	else
	141	{
	142	int i;
	143	scm_srcprops_chunk *mem;
	144	scm_sizet n = sizeof (scm_srcprops_chunk)
	145	+ sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
	146	SCM_SYSCALL (mem = (scm_srcprops_chunk *) malloc (n));
	147	SCM_ASSERT (mem, SCM_UNDEFINED, SCM_NALLOC, "srcprops");
	148	scm_mallocated += n;
	149	mem->next = srcprops_chunklist;
	150	srcprops_chunklist = mem;
	151	ptr = &mem->srcprops[0];
	152	for (i = 1; i < SRCPROPS_CHUNKSIZE - 1; ++i)
	153	(scm_srcprops *)&ptr[i] = &ptr[i + 1];
	154	(scm_srcprops *)&ptr[SRCPROPS_CHUNKSIZE - 1] = 0;
	155	srcprops_freelist = (scm_srcprops *) &ptr[1];
	156	}
	157	SCM_NEWCELL (ans);
5c5549cb	158	SCM_CAR (ans) = scm_tc16_srcprops;
575888bd MD	159	ptr->pos = SRCPROPMAKPOS (line, col);
	160	ptr->fname = filename;
	161	ptr->copy = copy;
	162	ptr->plist = plist;
	163	SCM_CDR (ans) = (SCM) ptr;
	164	SCM_ALLOW_INTS;
	165	return ans;
	166	}
	167
1cc91f1b	168
575888bd MD	169	SCM
	170	scm_srcprops_to_plist (obj)
	171	SCM obj;
575888bd MD	172	{
	173	SCM plist = SRCPROPPLIST (obj);
	174	if (!SCM_UNBNDP (SRCPROPCOPY (obj)))
	175	plist = scm_acons (scm_i_copy, SRCPROPCOPY (obj), plist);
	176	if (!SCM_UNBNDP (SRCPROPFNAME (obj)))
	177	plist = scm_acons (scm_i_filename, SRCPROPFNAME (obj), plist);
	178	plist = scm_acons (scm_i_column, SCM_MAKINUM (SRCPROPCOL (obj)), plist);
	179	plist = scm_acons (scm_i_line, SCM_MAKINUM (SRCPROPLINE (obj)), plist);
	180	plist = scm_acons (scm_i_breakpoint, SRCPROPBRK (obj), plist);
	181	return plist;
	182	}
	183
	184	SCM_PROC (s_source_properties, "source-properties", 1, 0, 0, scm_source_properties);
1cc91f1b	185
575888bd MD	186	SCM
	187	scm_source_properties (obj)
	188	SCM obj;
575888bd MD	189	{
	190	SCM p;
	191	if (SCM_MEMOIZEDP (obj))
	192	obj = SCM_MEMOEXP (obj);
	193	p = scm_hashq_ref (scm_source_whash, obj, (SCM) NULL);
	194	if (p != (SCM) NULL && SRCPROPSP (p))
	195	return scm_srcprops_to_plist (p);
	196	return SCM_EOL;
	197	}
	198
	199	/* Perhaps this procedure should look through an alist
	200	and try to make a srcprops-object...? */
	201	SCM_PROC (s_set_source_properties_x, "set-source-properties!", 2, 0, 0, scm_set_source_properties_x);
1cc91f1b	202
575888bd MD	203	SCM
	204	scm_set_source_properties_x (obj, plist)
	205	SCM obj;
	206	SCM plist;
575888bd MD	207	{
	208	SCM handle;
	209	if (SCM_MEMOIZEDP (obj))
	210	obj = SCM_MEMOEXP (obj);
	211	handle = scm_hashq_create_handle_x (scm_source_whash, obj, plist);
	212	SCM_SETCDR (handle, plist);
	213	return plist;
	214	}
	215
	216	SCM_PROC (s_source_property, "source-property", 2, 0, 0, scm_source_property);
1cc91f1b	217
575888bd MD	218	SCM
	219	scm_source_property (obj, key)
	220	SCM obj;
	221	SCM key;
575888bd MD	222	{
	223	SCM p;
	224	if (SCM_MEMOIZEDP (obj))
	225	obj = SCM_MEMOEXP (obj);
	226	p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL);
	227	if (SCM_IMP (p) \|\| !SRCPROPSP (p))
	228	goto plist;
	229	if (scm_i_breakpoint == key) p = SRCPROPBRK (p);
	230	else if (scm_i_line == key) p = SCM_MAKINUM (SRCPROPLINE (p));
	231	else if (scm_i_column == key) p = SCM_MAKINUM (SRCPROPCOL (p));
	232	else if (scm_i_filename == key) p = SRCPROPFNAME (p);
	233	else if (scm_i_copy == key) p = SRCPROPCOPY (p);
	234	else
	235	{
	236	p = SRCPROPPLIST (p);
	237	plist:
	238	p = scm_assoc (key, p);
	239	return (SCM_NIMP (p) ? SCM_CDR (p) : SCM_BOOL_F);
	240	}
	241	return SCM_UNBNDP (p) ? SCM_BOOL_F : p;
	242	}
	243
	244	SCM_PROC (s_set_source_property_x, "set-source-property!", 3, 0, 0, scm_set_source_property_x);
1cc91f1b	245
575888bd MD	246	SCM
	247	scm_set_source_property_x (obj, key, datum)
	248	SCM obj;
	249	SCM key;
	250	SCM datum;
575888bd MD	251	{
	252	scm_whash_handle h;
	253	SCM p;
	254	if (SCM_MEMOIZEDP (obj))
	255	obj = SCM_MEMOEXP (obj);
	256	h = scm_whash_get_handle (scm_source_whash, obj);
	257	if (SCM_WHASHFOUNDP (h))
	258	p = SCM_WHASHREF (scm_source_whash, h);
	259	else
	260	{
	261	h = scm_whash_create_handle (scm_source_whash, obj);
	262	p = SCM_EOL;
	263	}
	264	if (scm_i_breakpoint == key)
	265	if (SCM_FALSEP (datum))
	266	CLEARSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p)
	267	? p
	268	: SCM_WHASHSET (scm_source_whash, h,
5c5549cb	269	scm_make_srcprops (0, 0, SCM_UNDEFINED,
575888bd MD	270	SCM_UNDEFINED, p)));
	271	else
	272	SETSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p)
	273	? p
	274	: SCM_WHASHSET (scm_source_whash, h,
5c5549cb	275	scm_make_srcprops (0, 0, SCM_UNDEFINED,
575888bd MD	276	SCM_UNDEFINED, p)));
	277	else if (scm_i_line == key)
	278	{
	279	if (SCM_NIMP (p) && SRCPROPSP (p))
	280	SETSRCPROPLINE (p, datum);
	281	else
	282	SCM_WHASHSET (scm_source_whash, h,
5c5549cb	283	scm_make_srcprops (datum, 0, SCM_UNDEFINED, SCM_UNDEFINED, p));
575888bd MD	284	}
	285	else if (scm_i_column == key)
	286	{
	287	if (SCM_NIMP (p) && SRCPROPSP (p))
	288	SETSRCPROPCOL (p, datum);
	289	else
	290	SCM_WHASHSET (scm_source_whash, h,
5c5549cb	291	scm_make_srcprops (0, datum, SCM_UNDEFINED, SCM_UNDEFINED, p));
575888bd MD	292	}
	293	else if (scm_i_filename == key)
	294	{
	295	if (SCM_NIMP (p) && SRCPROPSP (p))
	296	SRCPROPFNAME (p) = datum;
	297	else
5c5549cb	298	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, datum, SCM_UNDEFINED, p));
575888bd MD	299	}
	300	else if (scm_i_filename == key)
	301	{
	302	if (SCM_NIMP (p) && SRCPROPSP (p))
	303	SRCPROPCOPY (p) = datum;
	304	else
5c5549cb	305	SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, SCM_UNDEFINED, datum, p));
575888bd MD	306	}
	307	else
	308	SCM_WHASHSET (scm_source_whash, h, scm_acons (key, datum, p));
	309	return SCM_UNSPECIFIED;
	310	}
	311
1cc91f1b	312
575888bd MD	313	void
575888bd MD	314	scm_init_srcprop ()
575888bd	315	{
5c5549cb MD	316	scm_tc16_srcprops = scm_newsmob (&srcpropssmob);
5c5549cb MD	317	scm_source_whash = scm_make_weak_key_hash_table (SCM_MAKINUM (2047));
575888bd MD	318
	319	scm_i_filename = SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED));
	320	scm_i_copy = SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED));
	321	scm_i_line = SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED));
	322	scm_i_column = SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED));
	323	scm_i_breakpoint = SCM_CAR (scm_sysintern ("breakpoint", SCM_UNDEFINED));
	324
	325	scm_sysintern ("source-whash", scm_source_whash);
	326	#include "srcprop.x"
	327	}
	328
	329	void
	330	scm_finish_srcprop ()
	331	{
	332	register scm_srcprops_chunk ptr = srcprops_chunklist, next;
	333	while (ptr)
	334	{
	335	next = ptr->next;
	336	free ((char *) ptr);
	337	scm_mallocated -= sizeof (scm_srcprops_chunk)
	338	+ sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1);
5c5549cb	339	ptr = next;
575888bd MD	340	}
575888bd MD	341	}