gdb/ada-typeprint.c

   1 /* Support for printing Ada types for GDB, the GNU debugger.
   2    Copyright (C) 1986, 1988, 1989, 1991, 1997, 1998, 1999, 2000, 2001, 2002,
   3    2003, 2004, 2007 Free Software Foundation, Inc.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22 #include "defs.h"
  23 #include "gdb_obstack.h"
  24 #include "bfd.h"                /* Binary File Description */
  25 #include "symtab.h"
  26 #include "gdbtypes.h"
  27 #include "expression.h"
  28 #include "value.h"
  29 #include "gdbcore.h"
  30 #include "target.h"
  31 #include "command.h"
  32 #include "gdbcmd.h"
  33 #include "language.h"
  34 #include "demangle.h"
  35 #include "c-lang.h"
  36 #include "typeprint.h"
  37 #include "ada-lang.h"
  38
  39 #include <ctype.h>
  40 #include "gdb_string.h"
  41 #include <errno.h>
  42
  43 static int print_record_field_types (struct type *, struct type *,
  44                                      struct ui_file *, int, int);
  45
  46 static void print_array_type (struct type *, struct ui_file *, int, int);
  47
  48 static void print_choices (struct type *, int, struct ui_file *,
  49                            struct type *);
  50
  51 static void print_range (struct type *, struct ui_file *);
  52
  53 static void print_range_bound (struct type *, char *, int *,
  54                                struct ui_file *);
  55
  56 static void
  57 print_dynamic_range_bound (struct type *, const char *, int,
  58                            const char *, struct ui_file *);
  59
  60 static void print_range_type_named (char *, struct ui_file *);
  61 \f
  62
  63
  64 static char *name_buffer;
  65 static int name_buffer_len;
  66
  67 /* The (decoded) Ada name of TYPE.  This value persists until the
  68    next call.  */
  69
  70 static char *
  71 decoded_type_name (struct type *type)
  72 {
  73   if (ada_type_name (type) == NULL)
  74     return NULL;
  75   else
  76     {
  77       char *raw_name = ada_type_name (type);
  78       char *s, *q;
  79
  80       if (name_buffer == NULL || name_buffer_len <= strlen (raw_name))
  81         {
  82           name_buffer_len = 16 + 2 * strlen (raw_name);
  83           name_buffer = xrealloc (name_buffer, name_buffer_len);
  84         }
  85       strcpy (name_buffer, raw_name);
  86
  87       s = (char *) strstr (name_buffer, "___");
  88       if (s != NULL)
  89         *s = '\0';
  90
  91       s = name_buffer + strlen (name_buffer) - 1;
  92       while (s > name_buffer && (s[0] != '_' || s[-1] != '_'))
  93         s -= 1;
  94
  95       if (s == name_buffer)
  96         return name_buffer;
  97
  98       if (!islower (s[1]))
  99         return NULL;
 100
 101       for (s = q = name_buffer; *s != '\0'; q += 1)
 102         {
 103           if (s[0] == '_' && s[1] == '_')
 104             {
 105               *q = '.';
 106               s += 2;
 107             }
 108           else
 109             {
 110               *q = *s;
 111               s += 1;
 112             }
 113         }
 114       *q = '\0';
 115       return name_buffer;
 116     }
 117 }
 118
 119
 120 /* Print a description of a type in the format of a
 121    typedef for the current language.
 122    NEW is the new name for a type TYPE.  */
 123
 124 void
 125 ada_typedef_print (struct type *type, struct symbol *new,
 126                    struct ui_file *stream)
 127 {
 128    /* XXX: type_sprint */
 129   fprintf_filtered (stream, "type %.*s is ",
 130                     ada_name_prefix_len (SYMBOL_PRINT_NAME (new)),
 131                     SYMBOL_PRINT_NAME (new));
 132   type_print (type, "", stream, 1);
 133 }
 134
 135 /* Print range type TYPE on STREAM.  */
 136
 137 static void
 138 print_range (struct type *type, struct ui_file *stream)
 139 {
 140   struct type *target_type;
 141   target_type = TYPE_TARGET_TYPE (type);
 142   if (target_type == NULL)
 143     target_type = type;
 144
 145   switch (TYPE_CODE (target_type))
 146     {
 147     case TYPE_CODE_RANGE:
 148     case TYPE_CODE_INT:
 149     case TYPE_CODE_BOOL:
 150     case TYPE_CODE_CHAR:
 151     case TYPE_CODE_ENUM:
 152       break;
 153     default:
 154       target_type = builtin_type_int;
 155       break;
 156     }
 157
 158   if (TYPE_NFIELDS (type) < 2)
 159     {
 160       /* A range needs at least 2 bounds to be printed.  If there are less
 161          than 2, just print the type name instead of the range itself.
 162          This check handles cases such as characters, for example.
 163
 164          If the name is not defined, then we don't print anything.
 165        */
 166       fprintf_filtered (stream, "%.*s",
 167                         ada_name_prefix_len (TYPE_NAME (type)),
 168                         TYPE_NAME (type));
 169     }
 170   else
 171     {
 172       /* We extract the range type bounds respectively from the first element
 173          and the last element of the type->fields array */
 174       const LONGEST lower_bound = (LONGEST) TYPE_LOW_BOUND (type);
 175       const LONGEST upper_bound =
 176         (LONGEST) TYPE_FIELD_BITPOS (type, TYPE_NFIELDS (type) - 1);
 177
 178       ada_print_scalar (target_type, lower_bound, stream);
 179       fprintf_filtered (stream, " .. ");
 180       ada_print_scalar (target_type, upper_bound, stream);
 181     }
 182 }
 183
 184 /* Print the number or discriminant bound at BOUNDS+*N on STREAM, and
 185    set *N past the bound and its delimiter, if any.  */
 186
 187 static void
 188 print_range_bound (struct type *type, char *bounds, int *n,
 189                    struct ui_file *stream)
 190 {
 191   LONGEST B;
 192   if (ada_scan_number (bounds, *n, &B, n))
 193     {
 194       /* STABS decodes all range types which bounds are 0 .. -1 as
 195          unsigned integers (ie. the type code is TYPE_CODE_INT, not
 196          TYPE_CODE_RANGE).  Unfortunately, ada_print_scalar() relies
 197          on the unsigned flag to determine whether the bound should
 198          be printed as a signed or an unsigned value.  This causes
 199          the upper bound of the 0 .. -1 range types to be printed as
 200          a very large unsigned number instead of -1.
 201          To workaround this stabs deficiency, we replace the TYPE by
 202          builtin_type_long when we detect that the bound is negative,
 203          and the type is a TYPE_CODE_INT.  The bound is negative when
 204          'm' is the last character of the number scanned in BOUNDS.  */
 205       if (bounds[*n - 1] == 'm' && TYPE_CODE (type) == TYPE_CODE_INT)
 206         type = builtin_type_long;
 207       ada_print_scalar (type, B, stream);
 208       if (bounds[*n] == '_')
 209         *n += 2;
 210     }
 211   else
 212     {
 213       int bound_len;
 214       char *bound = bounds + *n;
 215       char *pend;
 216
 217       pend = strstr (bound, "__");
 218       if (pend == NULL)
 219         *n += bound_len = strlen (bound);
 220       else
 221         {
 222           bound_len = pend - bound;
 223           *n += bound_len + 2;
 224         }
 225       fprintf_filtered (stream, "%.*s", bound_len, bound);
 226     }
 227 }
 228
 229 /* Assuming NAME[0 .. NAME_LEN-1] is the name of a range type, print
 230    the value (if found) of the bound indicated by SUFFIX ("___L" or
 231    "___U") according to the ___XD conventions.  */
 232
 233 static void
 234 print_dynamic_range_bound (struct type *type, const char *name, int name_len,
 235                            const char *suffix, struct ui_file *stream)
 236 {
 237   static char *name_buf = NULL;
 238   static size_t name_buf_len = 0;
 239   LONGEST B;
 240   int OK;
 241
 242   GROW_VECT (name_buf, name_buf_len, name_len + strlen (suffix) + 1);
 243   strncpy (name_buf, name, name_len);
 244   strcpy (name_buf + name_len, suffix);
 245
 246   B = get_int_var_value (name_buf, &OK);
 247   if (OK)
 248     ada_print_scalar (type, B, stream);
 249   else
 250     fprintf_filtered (stream, "?");
 251 }
 252
 253 /* Print the range type named NAME.  */
 254
 255 static void
 256 print_range_type_named (char *name, struct ui_file *stream)
 257 {
 258   struct type *raw_type = ada_find_any_type (name);
 259   struct type *base_type;
 260   char *subtype_info;
 261
 262   if (raw_type == NULL)
 263     base_type = builtin_type_int;
 264   else if (TYPE_CODE (raw_type) == TYPE_CODE_RANGE)
 265     base_type = TYPE_TARGET_TYPE (raw_type);
 266   else
 267     base_type = raw_type;
 268
 269   subtype_info = strstr (name, "___XD");
 270   if (subtype_info == NULL && raw_type == NULL)
 271     fprintf_filtered (stream, "? .. ?");
 272   else if (subtype_info == NULL)
 273     print_range (raw_type, stream);
 274   else
 275     {
 276       int prefix_len = subtype_info - name;
 277       char *bounds_str;
 278       int n;
 279
 280       subtype_info += 5;
 281       bounds_str = strchr (subtype_info, '_');
 282       n = 1;
 283
 284       if (*subtype_info == 'L')
 285         {
 286           print_range_bound (base_type, bounds_str, &n, stream);
 287           subtype_info += 1;
 288         }
 289       else
 290         print_dynamic_range_bound (base_type, name, prefix_len, "___L",
 291                                    stream);
 292
 293       fprintf_filtered (stream, " .. ");
 294
 295       if (*subtype_info == 'U')
 296         print_range_bound (base_type, bounds_str, &n, stream);
 297       else
 298         print_dynamic_range_bound (base_type, name, prefix_len, "___U",
 299                                    stream);
 300     }
 301 }
 302
 303 /* Print enumerated type TYPE on STREAM.  */
 304
 305 static void
 306 print_enum_type (struct type *type, struct ui_file *stream)
 307 {
 308   int len = TYPE_NFIELDS (type);
 309   int i, lastval;
 310
 311   fprintf_filtered (stream, "(");
 312   wrap_here (" ");
 313
 314   lastval = 0;
 315   for (i = 0; i < len; i++)
 316     {
 317       QUIT;
 318       if (i)
 319         fprintf_filtered (stream, ", ");
 320       wrap_here ("    ");
 321       fputs_filtered (ada_enum_name (TYPE_FIELD_NAME (type, i)), stream);
 322       if (lastval != TYPE_FIELD_BITPOS (type, i))
 323         {
 324           fprintf_filtered (stream, " => %d", TYPE_FIELD_BITPOS (type, i));
 325           lastval = TYPE_FIELD_BITPOS (type, i);
 326         }
 327       lastval += 1;
 328     }
 329   fprintf_filtered (stream, ")");
 330 }
 331
 332 /* Print representation of Ada fixed-point type TYPE on STREAM.  */
 333
 334 static void
 335 print_fixed_point_type (struct type *type, struct ui_file *stream)
 336 {
 337   DOUBLEST delta = ada_delta (type);
 338   DOUBLEST small = ada_fixed_to_float (type, 1.0);
 339
 340   if (delta < 0.0)
 341     fprintf_filtered (stream, "delta ??");
 342   else
 343     {
 344       fprintf_filtered (stream, "delta %g", (double) delta);
 345       if (delta != small)
 346         fprintf_filtered (stream, " <'small = %g>", (double) small);
 347     }
 348 }
 349
 350 /* Print representation of special VAX floating-point type TYPE on STREAM.  */
 351
 352 static void
 353 print_vax_floating_point_type (struct type *type, struct ui_file *stream)
 354 {
 355   fprintf_filtered (stream, "<float format %c>",
 356                     ada_vax_float_type_suffix (type));
 357 }
 358
 359 /* Print simple (constrained) array type TYPE on STREAM.  LEVEL is the
 360    recursion (indentation) level, in case the element type itself has
 361    nested structure, and SHOW is the number of levels of internal
 362    structure to show (see ada_print_type).  */
 363
 364 static void
 365 print_array_type (struct type *type, struct ui_file *stream, int show,
 366                   int level)
 367 {
 368   int bitsize;
 369   int n_indices;
 370
 371   bitsize = 0;
 372   fprintf_filtered (stream, "array (");
 373
 374   n_indices = -1;
 375   if (show < 0)
 376     fprintf_filtered (stream, "...");
 377   else
 378     {
 379       if (ada_is_packed_array_type (type))
 380         type = ada_coerce_to_simple_array_type (type);
 381       if (type == NULL)
 382         {
 383           fprintf_filtered (stream, _("<undecipherable array type>"));
 384           return;
 385         }
 386       if (ada_is_simple_array_type (type))
 387         {
 388           struct type *range_desc_type =
 389             ada_find_parallel_type (type, "___XA");
 390           struct type *arr_type;
 391
 392           bitsize = 0;
 393           if (range_desc_type == NULL)
 394             {
 395               for (arr_type = type; TYPE_CODE (arr_type) == TYPE_CODE_ARRAY;
 396                    arr_type = TYPE_TARGET_TYPE (arr_type))
 397                 {
 398                   if (arr_type != type)
 399                     fprintf_filtered (stream, ", ");
 400                   print_range (TYPE_INDEX_TYPE (arr_type), stream);
 401                   if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0)
 402                     bitsize = TYPE_FIELD_BITSIZE (arr_type, 0);
 403                 }
 404             }
 405           else
 406             {
 407               int k;
 408               n_indices = TYPE_NFIELDS (range_desc_type);
 409               for (k = 0, arr_type = type;
 410                    k < n_indices;
 411                    k += 1, arr_type = TYPE_TARGET_TYPE (arr_type))
 412                 {
 413                   if (k > 0)
 414                     fprintf_filtered (stream, ", ");
 415                   print_range_type_named (TYPE_FIELD_NAME
 416                                           (range_desc_type, k), stream);
 417                   if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0)
 418                     bitsize = TYPE_FIELD_BITSIZE (arr_type, 0);
 419                 }
 420             }
 421         }
 422       else
 423         {
 424           int i, i0;
 425           for (i = i0 = ada_array_arity (type); i > 0; i -= 1)
 426             fprintf_filtered (stream, "%s<>", i == i0 ? "" : ", ");
 427         }
 428     }
 429
 430   fprintf_filtered (stream, ") of ");
 431   wrap_here ("");
 432   ada_print_type (ada_array_element_type (type, n_indices), "", stream,
 433                   show == 0 ? 0 : show - 1, level + 1);
 434   if (bitsize > 0)
 435     fprintf_filtered (stream, " <packed: %d-bit elements>", bitsize);
 436 }
 437
 438 /* Print the choices encoded by field FIELD_NUM of variant-part TYPE on
 439    STREAM, assuming the VAL_TYPE is the type of the values.  */
 440
 441 static void
 442 print_choices (struct type *type, int field_num, struct ui_file *stream,
 443                struct type *val_type)
 444 {
 445   int have_output;
 446   int p;
 447   const char *name = TYPE_FIELD_NAME (type, field_num);
 448
 449   have_output = 0;
 450
 451   /* Skip over leading 'V': NOTE soon to be obsolete.  */
 452   if (name[0] == 'V')
 453     {
 454       if (!ada_scan_number (name, 1, NULL, &p))
 455         goto Huh;
 456     }
 457   else
 458     p = 0;
 459
 460   while (1)
 461     {
 462       switch (name[p])
 463         {
 464         default:
 465           return;
 466         case 'S':
 467         case 'R':
 468         case 'O':
 469           if (have_output)
 470             fprintf_filtered (stream, " | ");
 471           have_output = 1;
 472           break;
 473         }
 474
 475       switch (name[p])
 476         {
 477         case 'S':
 478           {
 479             LONGEST W;
 480             if (!ada_scan_number (name, p + 1, &W, &p))
 481               goto Huh;
 482             ada_print_scalar (val_type, W, stream);
 483             break;
 484           }
 485         case 'R':
 486           {
 487             LONGEST L, U;
 488             if (!ada_scan_number (name, p + 1, &L, &p)
 489                 || name[p] != 'T' || !ada_scan_number (name, p + 1, &U, &p))
 490               goto Huh;
 491             ada_print_scalar (val_type, L, stream);
 492             fprintf_filtered (stream, " .. ");
 493             ada_print_scalar (val_type, U, stream);
 494             break;
 495           }
 496         case 'O':
 497           fprintf_filtered (stream, "others");
 498           p += 1;
 499           break;
 500         }
 501     }
 502
 503 Huh:
 504   fprintf_filtered (stream, "??");
 505
 506 }
 507
 508 /* Assuming that field FIELD_NUM of TYPE is a VARIANTS field whose
 509    discriminant is contained in OUTER_TYPE, print its variants on STREAM.
 510    LEVEL is the recursion
 511    (indentation) level, in case any of the fields themselves have
 512    nested structure, and SHOW is the number of levels of internal structure
 513    to show (see ada_print_type).  For this purpose, fields nested in a
 514    variant part are taken to be at the same level as the fields
 515    immediately outside the variant part.  */
 516
 517 static void
 518 print_variant_clauses (struct type *type, int field_num,
 519                        struct type *outer_type, struct ui_file *stream,
 520                        int show, int level)
 521 {
 522   int i;
 523   struct type *var_type, *par_type;
 524   struct type *discr_type;
 525
 526   var_type = TYPE_FIELD_TYPE (type, field_num);
 527   discr_type = ada_variant_discrim_type (var_type, outer_type);
 528
 529   if (TYPE_CODE (var_type) == TYPE_CODE_PTR)
 530     {
 531       var_type = TYPE_TARGET_TYPE (var_type);
 532       if (var_type == NULL || TYPE_CODE (var_type) != TYPE_CODE_UNION)
 533         return;
 534     }
 535
 536   par_type = ada_find_parallel_type (var_type, "___XVU");
 537   if (par_type != NULL)
 538     var_type = par_type;
 539
 540   for (i = 0; i < TYPE_NFIELDS (var_type); i += 1)
 541     {
 542       fprintf_filtered (stream, "\n%*swhen ", level + 4, "");
 543       print_choices (var_type, i, stream, discr_type);
 544       fprintf_filtered (stream, " =>");
 545       if (print_record_field_types (TYPE_FIELD_TYPE (var_type, i),
 546                                     outer_type, stream, show, level + 4) <= 0)
 547         fprintf_filtered (stream, " null;");
 548     }
 549 }
 550
 551 /* Assuming that field FIELD_NUM of TYPE is a variant part whose
 552    discriminants are contained in OUTER_TYPE, print a description of it
 553    on STREAM.  LEVEL is the recursion (indentation) level, in case any of
 554    the fields themselves have nested structure, and SHOW is the number of
 555    levels of internal structure to show (see ada_print_type).  For this
 556    purpose, fields nested in a variant part are taken to be at the same
 557    level as the fields immediately outside the variant part.  */
 558
 559 static void
 560 print_variant_part (struct type *type, int field_num, struct type *outer_type,
 561                     struct ui_file *stream, int show, int level)
 562 {
 563   fprintf_filtered (stream, "\n%*scase %s is", level + 4, "",
 564                     ada_variant_discrim_name
 565                     (TYPE_FIELD_TYPE (type, field_num)));
 566   print_variant_clauses (type, field_num, outer_type, stream, show,
 567                          level + 4);
 568   fprintf_filtered (stream, "\n%*send case;", level + 4, "");
 569 }
 570
 571 /* Print a description on STREAM of the fields in record type TYPE, whose
 572    discriminants are in OUTER_TYPE.  LEVEL is the recursion (indentation)
 573    level, in case any of the fields themselves have nested structure,
 574    and SHOW is the number of levels of internal structure to show
 575    (see ada_print_type).  Does not print parent type information of TYPE.
 576    Returns 0 if no fields printed, -1 for an incomplete type, else > 0.
 577    Prints each field beginning on a new line, but does not put a new line at
 578    end.  */
 579
 580 static int
 581 print_record_field_types (struct type *type, struct type *outer_type,
 582                           struct ui_file *stream, int show, int level)
 583 {
 584   int len, i, flds;
 585
 586   flds = 0;
 587   len = TYPE_NFIELDS (type);
 588
 589   if (len == 0 && (TYPE_FLAGS (type) & TYPE_FLAG_STUB) != 0)
 590     return -1;
 591
 592   for (i = 0; i < len; i += 1)
 593     {
 594       QUIT;
 595
 596       if (ada_is_parent_field (type, i) || ada_is_ignored_field (type, i))
 597         ;
 598       else if (ada_is_wrapper_field (type, i))
 599         flds += print_record_field_types (TYPE_FIELD_TYPE (type, i), type,
 600                                           stream, show, level);
 601       else if (ada_is_variant_part (type, i))
 602         {
 603           print_variant_part (type, i, outer_type, stream, show, level);
 604           flds = 1;
 605         }
 606       else
 607         {
 608           flds += 1;
 609           fprintf_filtered (stream, "\n%*s", level + 4, "");
 610           ada_print_type (TYPE_FIELD_TYPE (type, i),
 611                           TYPE_FIELD_NAME (type, i),
 612                           stream, show - 1, level + 4);
 613           fprintf_filtered (stream, ";");
 614         }
 615     }
 616
 617   return flds;
 618 }
 619
 620 /* Print record type TYPE on STREAM.  LEVEL is the recursion (indentation)
 621    level, in case the element type itself has nested structure, and SHOW is
 622    the number of levels of internal structure to show (see ada_print_type).  */
 623
 624 static void
 625 print_record_type (struct type *type0, struct ui_file *stream, int show,
 626                    int level)
 627 {
 628   struct type *parent_type;
 629   struct type *type;
 630
 631   type = ada_find_parallel_type (type0, "___XVE");
 632   if (type == NULL)
 633     type = type0;
 634
 635   parent_type = ada_parent_type (type);
 636   if (ada_type_name (parent_type) != NULL)
 637     fprintf_filtered (stream, "new %s with record",
 638                       decoded_type_name (parent_type));
 639   else if (parent_type == NULL && ada_is_tagged_type (type, 0))
 640     fprintf_filtered (stream, "tagged record");
 641   else
 642     fprintf_filtered (stream, "record");
 643
 644   if (show < 0)
 645     fprintf_filtered (stream, " ... end record");
 646   else
 647     {
 648       int flds;
 649
 650       flds = 0;
 651       if (parent_type != NULL && ada_type_name (parent_type) == NULL)
 652         flds += print_record_field_types (parent_type, parent_type,
 653                                           stream, show, level);
 654       flds += print_record_field_types (type, type, stream, show, level);
 655
 656       if (flds > 0)
 657         fprintf_filtered (stream, "\n%*send record", level, "");
 658       else if (flds < 0)
 659         fprintf_filtered (stream, _(" <incomplete type> end record"));
 660       else
 661         fprintf_filtered (stream, " null; end record");
 662     }
 663 }
 664
 665 /* Print the unchecked union type TYPE in something resembling Ada
 666    format on STREAM.  LEVEL is the recursion (indentation) level
 667    in case the element type itself has nested structure, and SHOW is the
 668    number of levels of internal structure to show (see ada_print_type).  */
 669 static void
 670 print_unchecked_union_type (struct type *type, struct ui_file *stream,
 671                             int show, int level)
 672 {
 673   if (show < 0)
 674     fprintf_filtered (stream, "record (?) is ... end record");
 675   else if (TYPE_NFIELDS (type) == 0)
 676     fprintf_filtered (stream, "record (?) is null; end record");
 677   else
 678     {
 679       int i;
 680
 681       fprintf_filtered (stream, "record (?) is\n%*scase ? is", level + 4, "");
 682
 683       for (i = 0; i < TYPE_NFIELDS (type); i += 1)
 684         {
 685           fprintf_filtered (stream, "\n%*swhen ? =>\n%*s", level + 8, "",
 686                             level + 12, "");
 687           ada_print_type (TYPE_FIELD_TYPE (type, i),
 688                           TYPE_FIELD_NAME (type, i),
 689                           stream, show - 1, level + 12);
 690           fprintf_filtered (stream, ";");
 691         }
 692
 693       fprintf_filtered (stream, "\n%*send case;\n%*send record",
 694                         level + 4, "", level, "");
 695     }
 696 }
 697
 698
 699
 700 /* Print function or procedure type TYPE on STREAM.  Make it a header
 701    for function or procedure NAME if NAME is not null.  */
 702
 703 static void
 704 print_func_type (struct type *type, struct ui_file *stream, char *name)
 705 {
 706   int i, len = TYPE_NFIELDS (type);
 707
 708   if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID)
 709     fprintf_filtered (stream, "procedure");
 710   else
 711     fprintf_filtered (stream, "function");
 712
 713   if (name != NULL && name[0] != '\0')
 714     fprintf_filtered (stream, " %s", name);
 715
 716   if (len > 0)
 717     {
 718       fprintf_filtered (stream, " (");
 719       for (i = 0; i < len; i += 1)
 720         {
 721           if (i > 0)
 722             {
 723               fputs_filtered ("; ", stream);
 724               wrap_here ("    ");
 725             }
 726           fprintf_filtered (stream, "a%d: ", i + 1);
 727           ada_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0);
 728         }
 729       fprintf_filtered (stream, ")");
 730     }
 731
 732   if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
 733     {
 734       fprintf_filtered (stream, " return ");
 735       ada_print_type (TYPE_TARGET_TYPE (type), "", stream, 0, 0);
 736     }
 737 }
 738
 739
 740 /* Print a description of a type TYPE0.
 741    Output goes to STREAM (via stdio).
 742    If VARSTRING is a non-empty string, print as an Ada variable/field
 743        declaration.
 744    SHOW+1 is the maximum number of levels of internal type structure
 745       to show (this applies to record types, enumerated types, and
 746       array types).
 747    SHOW is the number of levels of internal type structure to show
 748       when there is a type name for the SHOWth deepest level (0th is
 749       outer level).
 750    When SHOW<0, no inner structure is shown.
 751    LEVEL indicates level of recursion (for nested definitions).  */
 752
 753 void
 754 ada_print_type (struct type *type0, char *varstring, struct ui_file *stream,
 755                 int show, int level)
 756 {
 757   struct type *type = ada_check_typedef (ada_get_base_type (type0));
 758   char *type_name = decoded_type_name (type);
 759   int is_var_decl = (varstring != NULL && varstring[0] != '\0');
 760
 761   if (type == NULL)
 762     {
 763       if (is_var_decl)
 764         fprintf_filtered (stream, "%.*s: ",
 765                           ada_name_prefix_len (varstring), varstring);
 766       fprintf_filtered (stream, "<null type?>");
 767       return;
 768     }
 769
 770   if (show > 0)
 771     type = ada_check_typedef (type);
 772
 773   if (is_var_decl && TYPE_CODE (type) != TYPE_CODE_FUNC)
 774     fprintf_filtered (stream, "%.*s: ",
 775                       ada_name_prefix_len (varstring), varstring);
 776
 777   if (type_name != NULL && show <= 0)
 778     {
 779       fprintf_filtered (stream, "%.*s",
 780                         ada_name_prefix_len (type_name), type_name);
 781       return;
 782     }
 783
 784   if (ada_is_aligner_type (type))
 785     ada_print_type (ada_aligned_type (type), "", stream, show, level);
 786   else if (ada_is_packed_array_type (type))
 787     print_array_type (type, stream, show, level);
 788   else
 789     switch (TYPE_CODE (type))
 790       {
 791       default:
 792         fprintf_filtered (stream, "<");
 793         c_print_type (type, "", stream, show, level);
 794         fprintf_filtered (stream, ">");
 795         break;
 796       case TYPE_CODE_PTR:
 797         fprintf_filtered (stream, "access ");
 798         ada_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level);
 799         break;
 800       case TYPE_CODE_REF:
 801         fprintf_filtered (stream, "<ref> ");
 802         ada_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level);
 803         break;
 804       case TYPE_CODE_ARRAY:
 805         print_array_type (type, stream, show, level);
 806         break;
 807       case TYPE_CODE_INT:
 808         if (ada_is_fixed_point_type (type))
 809           print_fixed_point_type (type, stream);
 810         else if (ada_is_vax_floating_type (type))
 811           print_vax_floating_point_type (type, stream);
 812         else
 813           {
 814             char *name = ada_type_name (type);
 815             if (!ada_is_range_type_name (name))
 816               fprintf_filtered (stream, _("<%d-byte integer>"),
 817                                 TYPE_LENGTH (type));
 818             else
 819               {
 820                 fprintf_filtered (stream, "range ");
 821                 print_range_type_named (name, stream);
 822               }
 823           }
 824         break;
 825       case TYPE_CODE_RANGE:
 826         if (ada_is_fixed_point_type (type))
 827           print_fixed_point_type (type, stream);
 828         else if (ada_is_vax_floating_type (type))
 829           print_vax_floating_point_type (type, stream);
 830         else if (ada_is_modular_type (type))
 831           fprintf_filtered (stream, "mod %s",
 832                             int_string (ada_modulus (type), 10, 0, 0, 1));
 833         else
 834           {
 835             fprintf_filtered (stream, "range ");
 836             print_range (type, stream);
 837           }
 838         break;
 839       case TYPE_CODE_FLT:
 840         fprintf_filtered (stream, _("<%d-byte float>"), TYPE_LENGTH (type));
 841         break;
 842       case TYPE_CODE_ENUM:
 843         if (show < 0)
 844           fprintf_filtered (stream, "(...)");
 845         else
 846           print_enum_type (type, stream);
 847         break;
 848       case TYPE_CODE_STRUCT:
 849         if (ada_is_array_descriptor_type (type))
 850           print_array_type (type, stream, show, level);
 851         else if (ada_is_bogus_array_descriptor (type))
 852           fprintf_filtered (stream,
 853                             _("array (?) of ? (<mal-formed descriptor>)"));
 854         else
 855           print_record_type (type, stream, show, level);
 856         break;
 857       case TYPE_CODE_UNION:
 858         print_unchecked_union_type (type, stream, show, level);
 859         break;
 860       case TYPE_CODE_FUNC:
 861         print_func_type (type, stream, varstring);
 862         break;
 863       }
 864 }