[deliverable/binutils-gdb.git] / gdb / ch-typeprint.c

/* Support for printing Chill types for GDB, the GNU debugger.
   Copyright 1986, 1988, 1989, 1991 Free Software Foundation, Inc.

This file is part of GDB.

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 of the License, 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 program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#include "defs.h"
#include "obstack.h"
#include "bfd.h"		/* Binary File Description */
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
#include "gdbcore.h"
#include "target.h"
#include "command.h"
#include "gdbcmd.h"
#include "language.h"
#include "demangle.h"
#include "ch-lang.h"
#include "typeprint.h"

#include <string.h>
#include <errno.h>

static void
chill_type_print_base PARAMS ((struct type *, GDB_FILE *, int, int));

void
chill_print_type (type, varstring, stream, show, level)
     struct type *type;
     char *varstring;
     GDB_FILE *stream;
     int show;
     int level;
{
  if (varstring != NULL && *varstring != '\0')
    {
      fputs_filtered (varstring, stream);
      fputs_filtered (" ", stream);
    }
  chill_type_print_base (type, stream, show, level);
}

/* Print the name of the type (or the ultimate pointer target,
   function value or array element).

   SHOW nonzero means don't print this type as just its name;
   show its real definition even if it has a name.
   SHOW zero means print just typename or tag if there is one
   SHOW negative means abbreviate structure elements.
   SHOW is decremented for printing of structure elements.

   LEVEL is the depth to indent by.
   We increase it for some recursive calls.  */

static void
chill_type_print_base (type, stream, show, level)
     struct type *type;
     GDB_FILE *stream;
     int show;
     int level;
{
  char *name;
  register int len;
  register int i;
  struct type *index_type;
  struct type *range_type;
  LONGEST low_bound;
  LONGEST high_bound;

  QUIT;

  wrap_here ("    ");
  if (type == NULL)
    {
      fputs_filtered ("<type unknown>", stream);
      return;
    }

  /* When SHOW is zero or less, and there is a valid type name, then always
     just print the type name directly from the type. */

  if ((show <= 0) && (TYPE_NAME (type) != NULL))
    {
      fputs_filtered (TYPE_NAME (type), stream);
      return;
    }

  check_stub_type (type);

  switch (TYPE_CODE (type))
    {
      case TYPE_CODE_PTR:
	if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID)
	  {
	    fprintf_filtered (stream, "PTR");
	    break;
	  }
	fprintf_filtered (stream, "REF ");
	chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	break;

      case TYPE_CODE_BOOL:
	fprintf_filtered (stream, "BOOL");
	break;

      case TYPE_CODE_ARRAY:
	range_type = TYPE_FIELD_TYPE (type, 0);
	index_type = TYPE_TARGET_TYPE (range_type);
	low_bound = TYPE_FIELD_BITPOS (range_type, 0);
	high_bound = TYPE_FIELD_BITPOS (range_type, 1);
        fputs_filtered ("ARRAY (", stream);
	print_type_scalar (index_type, low_bound, stream);
	fputs_filtered (":", stream);
	print_type_scalar (index_type, high_bound, stream);
	fputs_filtered (") ", stream);
	chill_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level);
	break;

      case TYPE_CODE_BITSTRING:
        fprintf_filtered (stream, "BOOLS (%d)",
			  TYPE_FIELD_BITPOS (TYPE_FIELD_TYPE(type,0), 1) + 1);
	break;

      case TYPE_CODE_SET:
        fputs_filtered ("POWERSET ", stream);
	chill_print_type (TYPE_FIELD_TYPE (type, 0), "", stream,
			  show - 1, level);
	break;

      case TYPE_CODE_STRING:
	range_type = TYPE_FIELD_TYPE (type, 0);
	index_type = TYPE_TARGET_TYPE (range_type);
	high_bound = TYPE_FIELD_BITPOS (range_type, 1);
        fputs_filtered ("CHARS (", stream);
	print_type_scalar (index_type, high_bound + 1, stream);
	fputs_filtered (")", stream);
	break;

      case TYPE_CODE_MEMBER:
	fprintf_filtered (stream, "MEMBER ");
        chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	break;
      case TYPE_CODE_REF:
	fprintf_filtered (stream, "/*LOC*/ ");
        chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	break;
      case TYPE_CODE_FUNC:
	fprintf_filtered (stream, "PROC (?)");
        chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	break;

      case TYPE_CODE_STRUCT:
	if (chill_is_varying_struct (type))
	  {
	    chill_type_print_base (TYPE_FIELD_TYPE (type, 1),
				   stream, show, level);
	    fputs_filtered (" VARYING", stream);
	  }
	else
	  {
	    fprintf_filtered (stream, "STRUCT ");

	    fprintf_filtered (stream, "(\n");
	    if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
	      {
		if (TYPE_FLAGS (type) & TYPE_FLAG_STUB)
		  {
		    fprintfi_filtered (level + 4, stream, "<incomplete type>\n");
		  }
		else
		  {
		    fprintfi_filtered (level + 4, stream, "<no data fields>\n");
		  }
	      }
	    else
	      {
		len = TYPE_NFIELDS (type);
		for (i = TYPE_N_BASECLASSES (type); i < len; i++)
		  {
		    struct type *field_type = TYPE_FIELD_TYPE (type, i);
		    QUIT;
		    print_spaces_filtered (level + 4, stream);
		    if (TYPE_CODE (field_type) == TYPE_CODE_UNION)
		      { int j; /* variant number */
			fputs_filtered ("CASE OF\n", stream);
			for (j = 0; j < TYPE_NFIELDS (field_type); j++)
			  { int k; /* variant field index */
			    struct type *variant_type
			      = TYPE_FIELD_TYPE (field_type, j);
			    int var_len = TYPE_NFIELDS (variant_type);
			    print_spaces_filtered (level + 4, stream);
			    if (strcmp (TYPE_FIELD_NAME (field_type, j),
					"else") == 0)
			      fputs_filtered ("ELSE\n", stream);
			    else
			      fputs_filtered (":\n", stream);
			    if (TYPE_CODE (variant_type) != TYPE_CODE_STRUCT)
			      error ("variant record confusion");
			    for (k = 0; k < var_len; k++)
			      {
				print_spaces_filtered (level + 8, stream);
				chill_print_type (TYPE_FIELD_TYPE (variant_type, k),
						  TYPE_FIELD_NAME (variant_type, k),
						  stream, show - 1, level + 8);
				if (k < (var_len - 1))
				  fputs_filtered (",", stream);
				fputs_filtered ("\n", stream);
			      }
			  }
			fputs_filtered ("ESAC\n", stream);
		      }
		    else
		      chill_print_type (field_type,
					TYPE_FIELD_NAME (type, i),
					stream, show - 1, level + 4);
		    if (i < (len - 1))
		      {
			fputs_filtered (",", stream);
		      }
		    fputs_filtered ("\n", stream);
		  }
	      }
	    fprintfi_filtered (level, stream, ")");
	  }
	break;

      case TYPE_CODE_RANGE:
	if (TYPE_DUMMY_RANGE (type))
	  chill_type_print_base (TYPE_TARGET_TYPE (type),
				 stream, show, level);
	else if (TYPE_TARGET_TYPE (type))
	  {
	    chill_type_print_base (TYPE_TARGET_TYPE (type),
				   stream, show, level);
	    fputs_filtered (" (", stream);
	    print_type_scalar (TYPE_TARGET_TYPE (type),
			       TYPE_FIELD_BITPOS (type, 0), stream);
	    fputs_filtered (":", stream);
	    print_type_scalar (TYPE_TARGET_TYPE (type),
			       TYPE_FIELD_BITPOS (type, 1), stream);
	    fputs_filtered (")", stream);
	  }
	else
	  fprintf_filtered (stream, "RANGE? (%s : %d)",
			    TYPE_FIELD_BITPOS (type, 0),
			    TYPE_FIELD_BITPOS (type, 1));
	break;

      case TYPE_CODE_ENUM:
	{
	  register int lastval = 0;
	  fprintf_filtered (stream, "SET (");
	  len = TYPE_NFIELDS (type);
	  for (i = 0; i < len; i++)
	    {
	      QUIT;
	      if (i) fprintf_filtered (stream, ", ");
	      wrap_here ("    ");
	      fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
	      if (lastval != TYPE_FIELD_BITPOS (type, i))
		{
		  fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i));
		  lastval = TYPE_FIELD_BITPOS (type, i);
		}
	      lastval++;
	    }
	  fprintf_filtered (stream, ")");
	}
	break;

      case TYPE_CODE_VOID:
      case TYPE_CODE_UNDEF:
      case TYPE_CODE_ERROR:
      case TYPE_CODE_UNION:
      case TYPE_CODE_METHOD:
	error ("missing language support in chill_type_print_base");
	break;

      default:

	/* Handle types not explicitly handled by the other cases,
	   such as fundamental types.  For these, just print whatever
	   the type name is, as recorded in the type itself.  If there
	   is no type name, then complain. */

	if (TYPE_NAME (type) != NULL)
	  {
	    fputs_filtered (TYPE_NAME (type), stream);
	  }
	else
	  {
	    error ("Unrecognized type code (%d) in symbol table.",
		   TYPE_CODE (type));
	  }
	break;
      }
}
Commit	Line	Data
a8a69e63 FF	1	/* Support for printing Chill types for GDB, the GNU debugger.
	2	Copyright 1986, 1988, 1989, 1991 Free Software Foundation, Inc.
	3
	4	This file is part of GDB.
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	19
	20	#include "defs.h"
	21	#include "obstack.h"
	22	#include "bfd.h" /* Binary File Description */
	23	#include "symtab.h"
	24	#include "gdbtypes.h"
	25	#include "expression.h"
	26	#include "value.h"
	27	#include "gdbcore.h"
	28	#include "target.h"
	29	#include "command.h"
	30	#include "gdbcmd.h"
	31	#include "language.h"
	32	#include "demangle.h"
	33	#include "ch-lang.h"
100f92e2	34	#include "typeprint.h"
a8a69e63 FF	35
	36	#include <string.h>
	37	#include <errno.h>
	38
8fbdca53	39	static void
199b2450	40	chill_type_print_base PARAMS ((struct type , GDB_FILE , int, int));
a8a69e63 FF	41
	42	void
	43	chill_print_type (type, varstring, stream, show, level)
	44	struct type *type;
	45	char *varstring;
199b2450	46	GDB_FILE *stream;
a8a69e63 FF	47	int show;
	48	int level;
	49	{
a8a69e63 FF	50	if (varstring != NULL && *varstring != '\0')
	51	{
	52	fputs_filtered (varstring, stream);
	53	fputs_filtered (" ", stream);
	54	}
8a177da6	55	chill_type_print_base (type, stream, show, level);
a8a69e63 FF	56	}
	57
	58	/* Print the name of the type (or the ultimate pointer target,
	59	function value or array element).
	60
	61	SHOW nonzero means don't print this type as just its name;
	62	show its real definition even if it has a name.
	63	SHOW zero means print just typename or tag if there is one
	64	SHOW negative means abbreviate structure elements.
	65	SHOW is decremented for printing of structure elements.
	66
	67	LEVEL is the depth to indent by.
	68	We increase it for some recursive calls. */
	69
8fbdca53 FF	70	static void
8fbdca53 FF	71	chill_type_print_base (type, stream, show, level)
a8a69e63	72	struct type *type;
199b2450	73	GDB_FILE *stream;
a8a69e63 FF	74	int show;
	75	int level;
	76	{
8fbdca53 FF	77	char *name;
	78	register int len;
	79	register int i;
8a177da6 PB	80	struct type *index_type;
	81	struct type *range_type;
	82	LONGEST low_bound;
	83	LONGEST high_bound;
8fbdca53	84
a8a69e63 FF	85	QUIT;
	86
	87	wrap_here (" ");
	88	if (type == NULL)
	89	{
	90	fputs_filtered ("<type unknown>", stream);
	91	return;
	92	}
	93
	94	/* When SHOW is zero or less, and there is a valid type name, then always
	95	just print the type name directly from the type. */
	96
	97	if ((show <= 0) && (TYPE_NAME (type) != NULL))
	98	{
	99	fputs_filtered (TYPE_NAME (type), stream);
	100	return;
	101	}
	102
dda398c3 JK	103	check_stub_type (type);
dda398c3 JK	104
a8a69e63 FF	105	switch (TYPE_CODE (type))
a8a69e63 FF	106	{
a8a69e63	107	case TYPE_CODE_PTR:
8a177da6 PB	108	if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID)
	109	{
	110	fprintf_filtered (stream, "PTR");
	111	break;
	112	}
	113	fprintf_filtered (stream, "REF ");
	114	chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	115	break;
	116
11b959da FF	117	case TYPE_CODE_BOOL:
	118	fprintf_filtered (stream, "BOOL");
	119	break;
	120
8a177da6 PB	121	case TYPE_CODE_ARRAY:
	122	range_type = TYPE_FIELD_TYPE (type, 0);
	123	index_type = TYPE_TARGET_TYPE (range_type);
	124	low_bound = TYPE_FIELD_BITPOS (range_type, 0);
	125	high_bound = TYPE_FIELD_BITPOS (range_type, 1);
	126	fputs_filtered ("ARRAY (", stream);
	127	print_type_scalar (index_type, low_bound, stream);
	128	fputs_filtered (":", stream);
	129	print_type_scalar (index_type, high_bound, stream);
	130	fputs_filtered (") ", stream);
	131	chill_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level);
	132	break;
	133
cba00921 PB	134	case TYPE_CODE_BITSTRING:
	135	fprintf_filtered (stream, "BOOLS (%d)",
	136	TYPE_FIELD_BITPOS (TYPE_FIELD_TYPE(type,0), 1) + 1);
	137	break;
	138
e909f287 PB	139	case TYPE_CODE_SET:
e909f287 PB	140	fputs_filtered ("POWERSET ", stream);
cba00921 PB	141	chill_print_type (TYPE_FIELD_TYPE (type, 0), "", stream,
cba00921 PB	142	show - 1, level);
e909f287 PB	143	break;
e909f287 PB	144
8a177da6 PB	145	case TYPE_CODE_STRING:
	146	range_type = TYPE_FIELD_TYPE (type, 0);
	147	index_type = TYPE_TARGET_TYPE (range_type);
	148	high_bound = TYPE_FIELD_BITPOS (range_type, 1);
cba00921	149	fputs_filtered ("CHARS (", stream);
8a177da6 PB	150	print_type_scalar (index_type, high_bound + 1, stream);
	151	fputs_filtered (")", stream);
	152	break;
	153
a8a69e63	154	case TYPE_CODE_MEMBER:
8a177da6 PB	155	fprintf_filtered (stream, "MEMBER ");
	156	chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	157	break;
a8a69e63	158	case TYPE_CODE_REF:
8a177da6 PB	159	fprintf_filtered (stream, "/LOC/ ");
	160	chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	161	break;
a8a69e63	162	case TYPE_CODE_FUNC:
8a177da6	163	fprintf_filtered (stream, "PROC (?)");
8fbdca53 FF	164	chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
	165	break;
	166
	167	case TYPE_CODE_STRUCT:
cba00921	168	if (chill_is_varying_struct (type))
8fbdca53	169	{
cba00921 PB	170	chill_type_print_base (TYPE_FIELD_TYPE (type, 1),
	171	stream, show, level);
	172	fputs_filtered (" VARYING", stream);
8fbdca53 FF	173	}
	174	else
	175	{
cba00921 PB	176	fprintf_filtered (stream, "STRUCT ");
cba00921 PB	177
8fbdca53 FF	178	fprintf_filtered (stream, "(\n");
	179	if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
	180	{
	181	if (TYPE_FLAGS (type) & TYPE_FLAG_STUB)
	182	{
	183	fprintfi_filtered (level + 4, stream, "<incomplete type>\n");
	184	}
	185	else
	186	{
	187	fprintfi_filtered (level + 4, stream, "<no data fields>\n");
	188	}
	189	}
	190	else
	191	{
	192	len = TYPE_NFIELDS (type);
	193	for (i = TYPE_N_BASECLASSES (type); i < len; i++)
	194	{
11b959da	195	struct type *field_type = TYPE_FIELD_TYPE (type, i);
8fbdca53 FF	196	QUIT;
8fbdca53 FF	197	print_spaces_filtered (level + 4, stream);
11b959da FF	198	if (TYPE_CODE (field_type) == TYPE_CODE_UNION)
	199	{ int j; /* variant number */
	200	fputs_filtered ("CASE OF\n", stream);
	201	for (j = 0; j < TYPE_NFIELDS (field_type); j++)
	202	{ int k; /* variant field index */
	203	struct type *variant_type
	204	= TYPE_FIELD_TYPE (field_type, j);
	205	int var_len = TYPE_NFIELDS (variant_type);
	206	print_spaces_filtered (level + 4, stream);
	207	if (strcmp (TYPE_FIELD_NAME (field_type, j),
	208	"else") == 0)
	209	fputs_filtered ("ELSE\n", stream);
	210	else
	211	fputs_filtered (":\n", stream);
	212	if (TYPE_CODE (variant_type) != TYPE_CODE_STRUCT)
	213	error ("variant record confusion");
	214	for (k = 0; k < var_len; k++)
	215	{
	216	print_spaces_filtered (level + 8, stream);
	217	chill_print_type (TYPE_FIELD_TYPE (variant_type, k),
	218	TYPE_FIELD_NAME (variant_type, k),
	219	stream, show - 1, level + 8);
	220	if (k < (var_len - 1))
	221	fputs_filtered (",", stream);
	222	fputs_filtered ("\n", stream);
	223	}
	224	}
	225	fputs_filtered ("ESAC\n", stream);
	226	}
	227	else
	228	chill_print_type (field_type,
	229	TYPE_FIELD_NAME (type, i),
	230	stream, show - 1, level + 4);
8fbdca53 FF	231	if (i < (len - 1))
	232	{
	233	fputs_filtered (",", stream);
	234	}
	235	fputs_filtered ("\n", stream);
	236	}
	237	}
	238	fprintfi_filtered (level, stream, ")");
	239	}
a8a69e63 FF	240	break;
a8a69e63 FF	241
11b959da	242	case TYPE_CODE_RANGE:
cba00921 PB	243	if (TYPE_DUMMY_RANGE (type))
	244	chill_type_print_base (TYPE_TARGET_TYPE (type),
	245	stream, show, level);
	246	else if (TYPE_TARGET_TYPE (type))
11b959da FF	247	{
	248	chill_type_print_base (TYPE_TARGET_TYPE (type),
	249	stream, show, level);
	250	fputs_filtered (" (", stream);
	251	print_type_scalar (TYPE_TARGET_TYPE (type),
	252	TYPE_FIELD_BITPOS (type, 0), stream);
	253	fputs_filtered (":", stream);
	254	print_type_scalar (TYPE_TARGET_TYPE (type),
	255	TYPE_FIELD_BITPOS (type, 1), stream);
	256	fputs_filtered (")", stream);
	257	}
	258	else
	259	fprintf_filtered (stream, "RANGE? (%s : %d)",
	260	TYPE_FIELD_BITPOS (type, 0),
	261	TYPE_FIELD_BITPOS (type, 1));
	262	break;
	263
cba00921 PB	264	case TYPE_CODE_ENUM:
	265	{
	266	register int lastval = 0;
	267	fprintf_filtered (stream, "SET (");
	268	len = TYPE_NFIELDS (type);
	269	for (i = 0; i < len; i++)
	270	{
	271	QUIT;
	272	if (i) fprintf_filtered (stream, ", ");
	273	wrap_here (" ");
	274	fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
	275	if (lastval != TYPE_FIELD_BITPOS (type, i))
	276	{
	277	fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i));
	278	lastval = TYPE_FIELD_BITPOS (type, i);
	279	}
	280	lastval++;
	281	}
	282	fprintf_filtered (stream, ")");
	283	}
	284	break;
	285
a8a69e63 FF	286	case TYPE_CODE_VOID:
	287	case TYPE_CODE_UNDEF:
	288	case TYPE_CODE_ERROR:
a8a69e63	289	case TYPE_CODE_UNION:
a8a69e63	290	case TYPE_CODE_METHOD:
8fbdca53	291	error ("missing language support in chill_type_print_base");
a8a69e63 FF	292	break;
	293
	294	default:
	295
	296	/* Handle types not explicitly handled by the other cases,
	297	such as fundamental types. For these, just print whatever
	298	the type name is, as recorded in the type itself. If there
	299	is no type name, then complain. */
	300
	301	if (TYPE_NAME (type) != NULL)
	302	{
	303	fputs_filtered (TYPE_NAME (type), stream);
	304	}
	305	else
	306	{
	307	error ("Unrecognized type code (%d) in symbol table.",
	308	TYPE_CODE (type));
	309	}
	310	break;
	311	}
	312	}