gcc/cp/dump.c

   1 /* Tree-dumping functionality for intermediate representation.
   2    Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
   3    Written by Mark Mitchell <mark@codesourcery.com>
   4
   5 This file is part of GCC.
   6
   7 GCC 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, or (at your option)
  10 any later version.
  11
  12 GCC 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 GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  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 (di, "protected");
  42   else if (TREE_PRIVATE(t))
  43     dump_string (di, "private");
  44   else
  45     dump_string (di, "public");
  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 CONVERT_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 (di, 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 (di, "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 (di, "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 (di, "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 (! IS_AGGR_TYPE (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))
 268         {
 269           int i;
 270
 271           for (i = 0; i < CLASSTYPE_N_BASECLASSES (t); ++i)
 272             {
 273               tree base_binfo = BINFO_BASETYPE (TYPE_BINFO (t), i);
 274               dump_child ("base", BINFO_TYPE (base_binfo));
 275               if (TREE_VIA_VIRTUAL (base_binfo))
 276                 dump_string (di, "virtual");
 277               dump_access (di, base_binfo);
 278             }
 279         }
 280       break;
 281
 282     case FIELD_DECL:
 283       dump_access (di, t);
 284       if (DECL_MUTABLE_P (t))
 285         dump_string(di, "mutable");
 286       break;
 287
 288     case VAR_DECL:
 289       if (TREE_CODE (CP_DECL_CONTEXT (t)) == RECORD_TYPE)
 290         dump_access (di, t);
 291       if (TREE_STATIC (t) && !TREE_PUBLIC (t))
 292         dump_string (di, "static");
 293       break;
 294
 295     case FUNCTION_DECL:
 296       if (!DECL_THUNK_P (t))
 297         {
 298           if (DECL_OVERLOADED_OPERATOR_P (t)) {
 299             dump_string (di, "operator");
 300             dump_op (di, t);
 301           }
 302           if (DECL_FUNCTION_MEMBER_P (t))
 303             {
 304               dump_string (di, "member");
 305               dump_access (di, t);
 306             }
 307           if (DECL_PURE_VIRTUAL_P (t))
 308             dump_string (di, "pure");
 309           if (DECL_VIRTUAL_P (t))
 310             dump_string (di, "virtual");
 311           if (DECL_CONSTRUCTOR_P (t))
 312             dump_string (di, "constructor");
 313           if (DECL_DESTRUCTOR_P (t))
 314             dump_string (di, "destructor");
 315           if (DECL_CONV_FN_P (t))
 316             dump_string (di, "conversion");
 317           if (DECL_GLOBAL_CTOR_P (t))
 318             dump_string (di, "global init");
 319           if (DECL_GLOBAL_DTOR_P (t))
 320             dump_string (di, "global fini");
 321           if (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t))
 322             dump_string (di, "pseudo tmpl");
 323         }
 324       else
 325         {
 326           tree virt = THUNK_VIRTUAL_OFFSET (t);
 327
 328           dump_string (di, "thunk");
 329           if (DECL_THIS_THUNK_P (t))
 330             dump_string (di, "this adjusting");
 331           else
 332             {
 333               dump_string (di, "result adjusting");
 334               if (virt)
 335                 virt = BINFO_VPTR_FIELD (virt);
 336             }
 337           dump_int (di, "fixd", THUNK_FIXED_OFFSET (t));
 338           if (virt)
 339             dump_int (di, "virt", tree_low_cst (virt, 0));
 340           dump_child ("fn", DECL_INITIAL (t));
 341         }
 342       break;
 343
 344     case NAMESPACE_DECL:
 345       if (DECL_NAMESPACE_ALIAS (t))
 346         dump_child ("alis", DECL_NAMESPACE_ALIAS (t));
 347       else if (!dump_flag (di, TDF_SLIM, t))
 348         dump_child ("dcls", cp_namespace_decls (t));
 349       break;
 350
 351     case TEMPLATE_DECL:
 352       dump_child ("rslt", DECL_TEMPLATE_RESULT (t));
 353       dump_child ("inst", DECL_TEMPLATE_INSTANTIATIONS (t));
 354       dump_child ("spcs", DECL_TEMPLATE_SPECIALIZATIONS (t));
 355       dump_child ("prms", DECL_TEMPLATE_PARMS (t));
 356       break;
 357
 358     case OVERLOAD:
 359       dump_child ("crnt", OVL_CURRENT (t));
 360       dump_child ("chan", OVL_CHAIN (t));
 361       break;
 362
 363     case TRY_BLOCK:
 364       dump_stmt (di, t);
 365       if (CLEANUP_P (t))
 366         dump_string (di, "cleanup");
 367       dump_child ("body", TRY_STMTS (t));
 368       dump_child ("hdlr", TRY_HANDLERS (t));
 369       break;
 370
 371     case EH_SPEC_BLOCK:
 372       dump_stmt (di, t);
 373       dump_child ("body", EH_SPEC_STMTS (t));
 374       dump_child ("raises", EH_SPEC_RAISES (t));
 375       break;
 376
 377     case PTRMEM_CST:
 378       dump_child ("clas", PTRMEM_CST_CLASS (t));
 379       dump_child ("mbr", PTRMEM_CST_MEMBER (t));
 380       break;
 381
 382     case THROW_EXPR:
 383       /* These nodes are unary, but do not have code class `1'.  */
 384       dump_child ("op 0", TREE_OPERAND (t, 0));
 385       break;
 386
 387     case AGGR_INIT_EXPR:
 388       dump_int (di, "ctor", AGGR_INIT_VIA_CTOR_P (t));
 389       dump_child ("fn", TREE_OPERAND (t, 0));
 390       dump_child ("args", TREE_OPERAND (t, 1));
 391       dump_child ("decl", TREE_OPERAND (t, 2));
 392       break;
 393
 394     case HANDLER:
 395       dump_stmt (di, t);
 396       dump_child ("parm", HANDLER_PARMS (t));
 397       dump_child ("body", HANDLER_BODY (t));
 398       break;
 399
 400     case MUST_NOT_THROW_EXPR:
 401       dump_stmt (di, t);
 402       dump_child ("body", TREE_OPERAND (t, 0));
 403       break;
 404
 405     case USING_STMT:
 406       dump_stmt (di, t);
 407       dump_child ("nmsp", USING_STMT_NAMESPACE (t));
 408       break;
 409
 410     case CLEANUP_STMT:
 411       dump_stmt (di, t);
 412       dump_child ("decl", CLEANUP_DECL (t));
 413       dump_child ("expr", CLEANUP_EXPR (t));
 414       dump_child ("body", CLEANUP_BODY (t));
 415       break;
 416
 417     case IF_STMT:
 418       dump_stmt (di, t);
 419       dump_child ("cond", IF_COND (t));
 420       dump_child ("then", THEN_CLAUSE (t));
 421       dump_child ("else", ELSE_CLAUSE (t));
 422       break;
 423
 424     default:
 425       break;
 426     }
 427
 428   return c_dump_tree (di, t);
 429 }