gdb/ch-typeprint.c

   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"
  34
  35 #include <string.h>
  36 #include <errno.h>
  37
  38 void
  39 chill_print_type_base PARAMS ((struct type *, FILE *, int, int));
  40
  41 void
  42 chill_print_type (type, varstring, stream, show, level)
  43      struct type *type;
  44      char *varstring;
  45      FILE *stream;
  46      int show;
  47      int level;
  48 {
  49   struct type *index_type;
  50   struct type *range_type;
  51   LONGEST low_bound;
  52   LONGEST high_bound;
  53
  54   if (varstring != NULL && *varstring != '\0')
  55     {
  56       fputs_filtered (varstring, stream);
  57       fputs_filtered (" ", stream);
  58     }
  59   switch (TYPE_CODE (type))
  60     {
  61       case TYPE_CODE_ARRAY:
  62         range_type = TYPE_FIELD_TYPE (type, 0);
  63         index_type = TYPE_TARGET_TYPE (range_type);
  64         low_bound = TYPE_FIELD_BITPOS (range_type, 0);
  65         high_bound = TYPE_FIELD_BITPOS (range_type, 1);
  66         fputs_filtered ("array (", stream);
  67         print_type_scalar (index_type, low_bound, stream);
  68         fputs_filtered (":", stream);
  69         print_type_scalar (index_type, high_bound, stream);
  70         fputs_filtered (") ", stream);
  71         chill_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level);
  72         break;
  73       default:
  74         chill_print_type_base (type, stream, show, level);
  75         break;
  76     }
  77 }
  78
  79 /* Print the name of the type (or the ultimate pointer target,
  80    function value or array element).
  81
  82    SHOW nonzero means don't print this type as just its name;
  83    show its real definition even if it has a name.
  84    SHOW zero means print just typename or tag if there is one
  85    SHOW negative means abbreviate structure elements.
  86    SHOW is decremented for printing of structure elements.
  87
  88    LEVEL is the depth to indent by.
  89    We increase it for some recursive calls.  */
  90
  91 void
  92 chill_print_type_base (type, stream, show, level)
  93      struct type *type;
  94      FILE *stream;
  95      int show;
  96      int level;
  97 {
  98   QUIT;
  99
 100   wrap_here ("    ");
 101   if (type == NULL)
 102     {
 103       fputs_filtered ("<type unknown>", stream);
 104       return;
 105     }
 106
 107   /* When SHOW is zero or less, and there is a valid type name, then always
 108      just print the type name directly from the type. */
 109
 110   if ((show <= 0) && (TYPE_NAME (type) != NULL))
 111     {
 112       fputs_filtered (TYPE_NAME (type), stream);
 113       return;
 114     }
 115
 116   switch (TYPE_CODE (type))
 117     {
 118       case TYPE_CODE_ARRAY:
 119       case TYPE_CODE_PTR:
 120       case TYPE_CODE_MEMBER:
 121       case TYPE_CODE_REF:
 122       case TYPE_CODE_FUNC:
 123         chill_print_type_base (TYPE_TARGET_TYPE (type), stream, show, level);
 124         break;
 125
 126       case TYPE_CODE_VOID:
 127       case TYPE_CODE_UNDEF:
 128       case TYPE_CODE_ERROR:
 129       case TYPE_CODE_RANGE:
 130       case TYPE_CODE_ENUM:
 131       case TYPE_CODE_UNION:
 132       case TYPE_CODE_STRUCT:
 133       case TYPE_CODE_METHOD:
 134         error ("missing language support in chill_print_type_base");
 135         break;
 136
 137       default:
 138
 139         /* Handle types not explicitly handled by the other cases,
 140            such as fundamental types.  For these, just print whatever
 141            the type name is, as recorded in the type itself.  If there
 142            is no type name, then complain. */
 143
 144         if (TYPE_NAME (type) != NULL)
 145           {
 146             fputs_filtered (TYPE_NAME (type), stream);
 147           }
 148         else
 149           {
 150             error ("Unrecognized type code (%d) in symbol table.",
 151                    TYPE_CODE (type));
 152           }
 153         break;
 154       }
 155 }