gcc/cp/dump.c

   1 /* Tree-dumping functionality for intermediate representation.
   2    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2010
   3    Free Software Foundation, Inc.
   4    Written by Mark Mitchell <mark@codesourcery.com>
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #include "config.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "tm.h"
  26 #include "tree.h"
  27 #include "cp-tree.h"
  28 #include "tree-dump.h"
  29
  30 static void dump_access (dump_info_p, tree);
  31
  32 static void dump_op (dump_info_p, tree);
  33
  34 /* Dump a representation of the accessibility information associated
  35    with T.  */
  36
  37 static void
  38 dump_access (dump_info_p di, tree t)
  39 {
  40   if (TREE_PROTECTED(t))
  41     dump_string_field (di, "accs", "prot");
  42   else if (TREE_PRIVATE(t))
  43     dump_string_field (di, "accs", "priv");
  44   else
  45     dump_string_field (di, "accs", "pub");
  46 }
  47
  48 /* Dump a representation of the specific operator for an overloaded
  49    operator associated with node t.  */
  50
  51 static void
  52 dump_op (dump_info_p di, tree t)
  53 {
  54   switch (DECL_OVERLOADED_OPERATOR_P (t)) {
  55     case NEW_EXPR:
  56       dump_string (di, "new");
  57       break;
  58     case VEC_NEW_EXPR:
  59       dump_string (di, "vecnew");
  60       break;
  61     case DELETE_EXPR:
  62       dump_string (di, "delete");
  63       break;
  64     case VEC_DELETE_EXPR:
  65       dump_string (di, "vecdelete");
  66       break;
  67     case UNARY_PLUS_EXPR:
  68       dump_string (di, "pos");
  69       break;
  70     case NEGATE_EXPR:
  71       dump_string (di, "neg");
  72       break;
  73     case ADDR_EXPR:
  74       dump_string (di, "addr");
  75       break;
  76     case INDIRECT_REF:
  77       dump_string(di, "deref");
  78       break;
  79     case BIT_NOT_EXPR:
  80       dump_string(di, "not");
  81       break;
  82     case TRUTH_NOT_EXPR:
  83       dump_string(di, "lnot");
  84       break;
  85     case PREINCREMENT_EXPR:
  86       dump_string(di, "preinc");
  87       break;
  88     case PREDECREMENT_EXPR:
  89       dump_string(di, "predec");
  90       break;
  91     case PLUS_EXPR:
  92       if (DECL_ASSIGNMENT_OPERATOR_P (t))
  93         dump_string (di, "plusassign");
  94       else
  95         dump_string(di, "plus");
  96       break;
  97     case MINUS_EXPR:
  98       if (DECL_ASSIGNMENT_OPERATOR_P (t))
  99         dump_string (di, "minusassign");
 100       else
 101         dump_string(di, "minus");
 102       break;
 103     case MULT_EXPR:
 104       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 105         dump_string (di, "multassign");
 106       else
 107         dump_string (di, "mult");
 108       break;
 109     case TRUNC_DIV_EXPR:
 110       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 111         dump_string (di, "divassign");
 112       else
 113         dump_string (di, "div");
 114       break;
 115     case TRUNC_MOD_EXPR:
 116       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 117          dump_string (di, "modassign");
 118       else
 119         dump_string (di, "mod");
 120       break;
 121     case BIT_AND_EXPR:
 122       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 123         dump_string (di, "andassign");
 124       else
 125         dump_string (di, "and");
 126       break;
 127     case BIT_IOR_EXPR:
 128       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 129         dump_string (di, "orassign");
 130       else
 131         dump_string (di, "or");
 132       break;
 133     case BIT_XOR_EXPR:
 134       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 135         dump_string (di, "xorassign");
 136       else
 137         dump_string (di, "xor");
 138       break;
 139     case LSHIFT_EXPR:
 140       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 141         dump_string (di, "lshiftassign");
 142       else
 143         dump_string (di, "lshift");
 144       break;
 145     case RSHIFT_EXPR:
 146       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 147         dump_string (di, "rshiftassign");
 148       else
 149         dump_string (di, "rshift");
 150       break;
 151     case EQ_EXPR:
 152       dump_string (di, "eq");
 153       break;
 154     case NE_EXPR:
 155       dump_string (di, "ne");
 156       break;
 157     case LT_EXPR:
 158       dump_string (di, "lt");
 159       break;
 160     case GT_EXPR:
 161       dump_string (di, "gt");
 162       break;
 163     case LE_EXPR:
 164       dump_string (di, "le");
 165       break;
 166     case GE_EXPR:
 167       dump_string (di, "ge");
 168       break;
 169     case TRUTH_ANDIF_EXPR:
 170       dump_string (di, "land");
 171       break;
 172     case TRUTH_ORIF_EXPR:
 173       dump_string (di, "lor");
 174       break;
 175     case COMPOUND_EXPR:
 176       dump_string (di, "compound");
 177       break;
 178     case MEMBER_REF:
 179       dump_string (di, "memref");
 180       break;
 181     case COMPONENT_REF:
 182       dump_string (di, "ref");
 183       break;
 184     case ARRAY_REF:
 185       dump_string (di, "subs");
 186       break;
 187     case POSTINCREMENT_EXPR:
 188       dump_string (di, "postinc");
 189       break;
 190     case POSTDECREMENT_EXPR:
 191       dump_string (di, "postdec");
 192       break;
 193     case CALL_EXPR:
 194       dump_string (di, "call");
 195       break;
 196     case NOP_EXPR:
 197       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 198         dump_string (di, "assign");
 199       break;
 200     default:
 201       break;
 202   }
 203 }
 204
 205 bool
 206 cp_dump_tree (void* dump_info, tree t)
 207 {
 208   enum tree_code code;
 209   dump_info_p di = (dump_info_p) dump_info;
 210
 211   /* Figure out what kind of node this is.  */
 212   code = TREE_CODE (t);
 213
 214   if (DECL_P (t))
 215     {
 216       if (DECL_LANG_SPECIFIC (t) && DECL_LANGUAGE (t) != lang_cplusplus)
 217         dump_string_field (di, "lang", language_to_string (DECL_LANGUAGE (t)));
 218     }
 219
 220   switch (code)
 221     {
 222     case IDENTIFIER_NODE:
 223       if (IDENTIFIER_OPNAME_P (t))
 224         {
 225           dump_string_field (di, "note", "operator");
 226           return true;
 227         }
 228       else if (IDENTIFIER_TYPENAME_P (t))
 229         {
 230           dump_child ("tynm", TREE_TYPE (t));
 231           return true;
 232         }
 233       break;
 234
 235     case OFFSET_TYPE:
 236       dump_string_field (di, "note", "ptrmem");
 237       dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
 238       dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
 239       return true;
 240
 241     case RECORD_TYPE:
 242       if (TYPE_PTRMEMFUNC_P (t))
 243         {
 244           dump_string_field (di, "note", "ptrmem");
 245           dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
 246           dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
 247           return true;
 248         }
 249       /* Fall through.  */
 250
 251     case UNION_TYPE:
 252       /* Is it a type used as a base? */
 253       if (TYPE_CONTEXT (t) && TREE_CODE (TYPE_CONTEXT (t)) == TREE_CODE (t)
 254           && CLASSTYPE_AS_BASE (TYPE_CONTEXT (t)) == t)
 255         {
 256           dump_child ("bfld", TYPE_CONTEXT (t));
 257           return true;
 258         }
 259
 260       if (! MAYBE_CLASS_TYPE_P (t))
 261         break;
 262
 263       dump_child ("vfld", TYPE_VFIELD (t));
 264       if (CLASSTYPE_TEMPLATE_SPECIALIZATION(t))
 265         dump_string(di, "spec");
 266
 267       if (!dump_flag (di, TDF_SLIM, t) && TYPE_BINFO (t))
 268         {
 269           int i;
 270           tree binfo;
 271           tree base_binfo;
 272
 273           for (binfo = TYPE_BINFO (t), i = 0;
 274                BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)
 275             {
 276               dump_child ("base", BINFO_TYPE (base_binfo));
 277               if (BINFO_VIRTUAL_P (base_binfo))
 278                 dump_string_field (di, "spec", "virt");
 279               dump_access (di, base_binfo);
 280             }
 281         }
 282       break;
 283
 284     case FIELD_DECL:
 285       dump_access (di, t);
 286       if (DECL_MUTABLE_P (t))
 287         dump_string_field (di, "spec", "mutable");
 288       break;
 289
 290     case VAR_DECL:
 291       if (TREE_CODE (CP_DECL_CONTEXT (t)) == RECORD_TYPE)
 292         dump_access (di, t);
 293       if (TREE_STATIC (t) && !TREE_PUBLIC (t))
 294         dump_string_field (di, "link", "static");
 295       break;
 296
 297     case FUNCTION_DECL:
 298       if (!DECL_THUNK_P (t))
 299         {
 300           if (DECL_OVERLOADED_OPERATOR_P (t)) {
 301             dump_string_field (di, "note", "operator");
 302             dump_op (di, t);
 303           }
 304           if (DECL_FUNCTION_MEMBER_P (t))
 305             {
 306               dump_string_field (di, "note", "member");
 307               dump_access (di, t);
 308             }
 309           if (DECL_PURE_VIRTUAL_P (t))
 310             dump_string_field (di, "spec", "pure");
 311           if (DECL_VIRTUAL_P (t))
 312             dump_string_field (di, "spec", "virt");
 313           if (DECL_CONSTRUCTOR_P (t))
 314             dump_string_field (di, "note", "constructor");
 315           if (DECL_DESTRUCTOR_P (t))
 316             dump_string_field (di, "note", "destructor");
 317           if (DECL_CONV_FN_P (t))
 318             dump_string_field (di, "note", "conversion");
 319           if (DECL_GLOBAL_CTOR_P (t))
 320             dump_string_field (di, "note", "global init");
 321           if (DECL_GLOBAL_DTOR_P (t))
 322             dump_string_field (di, "note", "global fini");
 323           if (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t))
 324             dump_string_field (di, "note", "pseudo tmpl");
 325         }
 326       else
 327         {
 328           tree virt = THUNK_VIRTUAL_OFFSET (t);
 329
 330           dump_string_field (di, "note", "thunk");
 331           if (DECL_THIS_THUNK_P (t))
 332             dump_string_field (di, "note", "this adjusting");
 333           else
 334             {
 335               dump_string_field (di, "note", "result adjusting");
 336               if (virt)
 337                 virt = BINFO_VPTR_FIELD (virt);
 338             }
 339           dump_int (di, "fixd", THUNK_FIXED_OFFSET (t));
 340           if (virt)
 341             dump_int (di, "virt", tree_low_cst (virt, 0));
 342           dump_child ("fn", DECL_INITIAL (t));
 343         }
 344       break;
 345
 346     case NAMESPACE_DECL:
 347       if (DECL_NAMESPACE_ALIAS (t))
 348         dump_child ("alis", DECL_NAMESPACE_ALIAS (t));
 349       else if (!dump_flag (di, TDF_SLIM, t))
 350         dump_child ("dcls", cp_namespace_decls (t));
 351       break;
 352
 353     case TEMPLATE_DECL:
 354       dump_child ("rslt", DECL_TEMPLATE_RESULT (t));
 355       dump_child ("inst", DECL_TEMPLATE_INSTANTIATIONS (t));
 356       dump_child ("spcs", DECL_TEMPLATE_SPECIALIZATIONS (t));
 357       dump_child ("prms", DECL_TEMPLATE_PARMS (t));
 358       break;
 359
 360     case OVERLOAD:
 361       dump_child ("crnt", OVL_CURRENT (t));
 362       dump_child ("chan", OVL_CHAIN (t));
 363       break;
 364
 365     case TRY_BLOCK:
 366       dump_stmt (di, t);
 367       if (CLEANUP_P (t))
 368         dump_string_field (di, "note", "cleanup");
 369       dump_child ("body", TRY_STMTS (t));
 370       dump_child ("hdlr", TRY_HANDLERS (t));
 371       break;
 372
 373     case EH_SPEC_BLOCK:
 374       dump_stmt (di, t);
 375       dump_child ("body", EH_SPEC_STMTS (t));
 376       dump_child ("raises", EH_SPEC_RAISES (t));
 377       break;
 378
 379     case PTRMEM_CST:
 380       dump_child ("clas", PTRMEM_CST_CLASS (t));
 381       dump_child ("mbr", PTRMEM_CST_MEMBER (t));
 382       break;
 383
 384     case THROW_EXPR:
 385       /* These nodes are unary, but do not have code class `1'.  */
 386       dump_child ("op 0", TREE_OPERAND (t, 0));
 387       break;
 388
 389     case AGGR_INIT_EXPR:
 390       {
 391         int i = 0;
 392         tree arg;
 393         aggr_init_expr_arg_iterator iter;
 394         dump_int (di, "ctor", AGGR_INIT_VIA_CTOR_P (t));
 395         dump_child ("fn", AGGR_INIT_EXPR_FN (t));
 396         FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
 397           {
 398             char buffer[32];
 399             sprintf (buffer, "%u", i);
 400             dump_child (buffer, arg);
 401             i++;
 402           }
 403         dump_child ("decl", AGGR_INIT_EXPR_SLOT (t));
 404       }
 405       break;
 406
 407     case HANDLER:
 408       dump_stmt (di, t);
 409       dump_child ("parm", HANDLER_PARMS (t));
 410       dump_child ("body", HANDLER_BODY (t));
 411       break;
 412
 413     case MUST_NOT_THROW_EXPR:
 414       dump_stmt (di, t);
 415       dump_child ("body", TREE_OPERAND (t, 0));
 416       dump_child ("cond", MUST_NOT_THROW_COND (t));
 417       break;
 418
 419     case USING_STMT:
 420       dump_stmt (di, t);
 421       dump_child ("nmsp", USING_STMT_NAMESPACE (t));
 422       break;
 423
 424     case CLEANUP_STMT:
 425       dump_stmt (di, t);
 426       dump_child ("decl", CLEANUP_DECL (t));
 427       dump_child ("expr", CLEANUP_EXPR (t));
 428       dump_child ("body", CLEANUP_BODY (t));
 429       break;
 430
 431     case IF_STMT:
 432       dump_stmt (di, t);
 433       dump_child ("cond", IF_COND (t));
 434       dump_child ("then", THEN_CLAUSE (t));
 435       dump_child ("else", ELSE_CLAUSE (t));
 436       break;
 437
 438     case BREAK_STMT:
 439     case CONTINUE_STMT:
 440       dump_stmt (di, t);
 441       break;
 442
 443     case DO_STMT:
 444       dump_stmt (di, t);
 445       dump_child ("body", DO_BODY (t));
 446       dump_child ("cond", DO_COND (t));
 447       break;
 448
 449     case FOR_STMT:
 450       dump_stmt (di, t);
 451       dump_child ("init", FOR_INIT_STMT (t));
 452       dump_child ("cond", FOR_COND (t));
 453       dump_child ("expr", FOR_EXPR (t));
 454       dump_child ("body", FOR_BODY (t));
 455       break;
 456
 457     case RANGE_FOR_STMT:
 458       dump_stmt (di, t);
 459       dump_child ("decl", RANGE_FOR_DECL (t));
 460       dump_child ("expr", RANGE_FOR_EXPR (t));
 461       dump_child ("body", RANGE_FOR_BODY (t));
 462       break;
 463
 464     case SWITCH_STMT:
 465       dump_stmt (di, t);
 466       dump_child ("cond", SWITCH_STMT_COND (t));
 467       dump_child ("body", SWITCH_STMT_BODY (t));
 468       break;
 469
 470     case WHILE_STMT:
 471       dump_stmt (di, t);
 472       dump_child ("cond", WHILE_COND (t));
 473       dump_child ("body", WHILE_BODY (t));
 474       break;
 475
 476     case STMT_EXPR:
 477       dump_child ("stmt", STMT_EXPR_STMT (t));
 478       break;
 479
 480     case EXPR_STMT:
 481       dump_stmt (di, t);
 482       dump_child ("expr", EXPR_STMT_EXPR (t));
 483       break;
 484
 485     default:
 486       break;
 487     }
 488
 489   return c_dump_tree (di, t);
 490 }