mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 03:40:34 +02:00
357 lines
10 KiB
C
357 lines
10 KiB
C
/* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002 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 */
|
||
|
||
|
||
|
||
|
||
#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"
|
||
|
||
/* {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:
|
||
*/
|