gcc/cp/ptree.c

   1 /* Prints out trees in human readable form.
   2    Copyright (C) 1992-2017 Free Software Foundation, Inc.
   3    Hacked by Michael Tiemann (tiemann@cygnus.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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21
  22 #include "config.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "cp-tree.h"
  26 #include "print-tree.h"
  27
  28 void
  29 cxx_print_decl (FILE *file, tree node, int indent)
  30 {
  31   if (TREE_CODE (node) == FIELD_DECL)
  32     {
  33       if (DECL_MUTABLE_P (node))
  34         {
  35           indent_to (file, indent + 3);
  36           fprintf (file, " mutable ");
  37         }
  38       return;
  39     }
  40
  41   if (!CODE_CONTAINS_STRUCT (TREE_CODE (node), TS_DECL_COMMON)
  42       || !DECL_LANG_SPECIFIC (node))
  43     return;
  44   if (TREE_CODE (node) == FUNCTION_DECL)
  45     {
  46       int flags = TFF_DECL_SPECIFIERS|TFF_RETURN_TYPE
  47         |TFF_FUNCTION_DEFAULT_ARGUMENTS|TFF_EXCEPTION_SPECIFICATION ;
  48       indent_to (file, indent + 3);
  49       fprintf (file, " full-name \"%s\"", decl_as_string (node, flags));
  50     }
  51   else if (TREE_CODE (node) == TEMPLATE_DECL)
  52     {
  53       print_node (file, "parms", DECL_TEMPLATE_PARMS (node), indent + 4);
  54       indent_to (file, indent + 3);
  55       fprintf (file, " full-name \"%s\"",
  56                decl_as_string (node, TFF_TEMPLATE_HEADER));
  57     }
  58
  59   indent_to (file, indent + 3);
  60   if (DECL_EXTERNAL (node) && DECL_NOT_REALLY_EXTERN (node))
  61     fprintf (file, " not-really-extern");
  62   if (TREE_CODE (node) == FUNCTION_DECL
  63       && DECL_PENDING_INLINE_INFO (node))
  64     fprintf (file, " pending-inline-info %p",
  65              (void *) DECL_PENDING_INLINE_INFO (node));
  66   if (VAR_OR_FUNCTION_DECL_P (node)
  67       && DECL_TEMPLATE_INFO (node))
  68     fprintf (file, " template-info %p",
  69              (void *) DECL_TEMPLATE_INFO (node));
  70 }
  71
  72 void
  73 cxx_print_type (FILE *file, tree node, int indent)
  74 {
  75   switch (TREE_CODE (node))
  76     {
  77     case BOUND_TEMPLATE_TEMPLATE_PARM:
  78       print_node (file, "args", TYPE_TI_ARGS (node), indent + 4);
  79       gcc_fallthrough ();
  80
  81     case TEMPLATE_TYPE_PARM:
  82     case TEMPLATE_TEMPLATE_PARM:
  83       indent_to (file, indent + 3);
  84       fprintf (file, "index %d level %d orig_level %d",
  85                TEMPLATE_TYPE_IDX (node), TEMPLATE_TYPE_LEVEL (node),
  86                TEMPLATE_TYPE_ORIG_LEVEL (node));
  87       return;
  88
  89     case FUNCTION_TYPE:
  90     case METHOD_TYPE:
  91       if (TYPE_RAISES_EXCEPTIONS (node))
  92         print_node (file, "throws", TYPE_RAISES_EXCEPTIONS (node), indent + 4);
  93       return;
  94
  95     case RECORD_TYPE:
  96     case UNION_TYPE:
  97       break;
  98
  99     case DECLTYPE_TYPE:
 100       print_node (file, "expr", DECLTYPE_TYPE_EXPR (node), indent + 4);
 101       return;
 102
 103     case TYPENAME_TYPE:
 104       print_node (file, "fullname", TYPENAME_TYPE_FULLNAME (node),
 105                   indent + 4);
 106       return;
 107
 108     case TYPE_PACK_EXPANSION:
 109       print_node (file, "args", PACK_EXPANSION_EXTRA_ARGS (node), indent + 4);
 110       return;
 111
 112     default:
 113       return;
 114     }
 115
 116   if (TYPE_PTRMEMFUNC_P (node))
 117     print_node (file, "ptrmemfunc fn type", TYPE_PTRMEMFUNC_FN_TYPE (node),
 118                 indent + 4);
 119
 120   if (! CLASS_TYPE_P (node))
 121     return;
 122
 123   indent_to (file, indent + 4);
 124   fprintf (file, "full-name \"%s\"",
 125            type_as_string (node, TFF_CLASS_KEY_OR_ENUM));
 126
 127   indent_to (file, indent + 3);
 128
 129   if (TYPE_NEEDS_CONSTRUCTING (node))
 130     fputs ( " needs-constructor", file);
 131   if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (node))
 132     fputs (" needs-destructor", file);
 133   if (TYPE_HAS_DEFAULT_CONSTRUCTOR (node))
 134     fputs (" X()", file);
 135   if (TYPE_HAS_CONVERSION (node))
 136     fputs (" has-type-conversion", file);
 137   if (TYPE_HAS_COPY_CTOR (node))
 138     {
 139       if (TYPE_HAS_CONST_COPY_CTOR (node))
 140         fputs (" X(constX&)", file);
 141       else
 142         fputs (" X(X&)", file);
 143     }
 144   if (TYPE_HAS_NEW_OPERATOR (node))
 145     fputs (" new", file);
 146   if (TYPE_HAS_ARRAY_NEW_OPERATOR (node))
 147     fputs (" new[]", file);
 148   if (TYPE_GETS_DELETE (node) & 1)
 149     fputs (" delete", file);
 150   if (TYPE_GETS_DELETE (node) & 2)
 151     fputs (" delete[]", file);
 152   if (TYPE_HAS_COPY_ASSIGN (node))
 153     fputs (" this=(X&)", file);
 154   if (CLASSTYPE_SORTED_FIELDS (node))
 155     fprintf (file, " sorted-fields %p",
 156              (void *) CLASSTYPE_SORTED_FIELDS (node));
 157
 158   if (TREE_CODE (node) == RECORD_TYPE)
 159     {
 160       if (TYPE_BINFO (node))
 161         fprintf (file, " n_parents=%d",
 162                  BINFO_N_BASE_BINFOS (TYPE_BINFO (node)));
 163       else
 164         fprintf (file, " no-binfo");
 165
 166       fprintf (file, " use_template=%d", CLASSTYPE_USE_TEMPLATE (node));
 167       if (CLASSTYPE_INTERFACE_ONLY (node))
 168         fprintf (file, " interface-only");
 169       if (CLASSTYPE_INTERFACE_UNKNOWN (node))
 170         fprintf (file, " interface-unknown");
 171     }
 172 }
 173
 174
 175 static void
 176 cxx_print_binding (FILE *stream, cxx_binding *binding, const char *prefix)
 177 {
 178   fprintf (stream, "%s <%p>",
 179            prefix, (void *) binding);
 180 }
 181
 182 void
 183 cxx_print_identifier (FILE *file, tree node, int indent)
 184 {
 185   if (indent == 0)
 186     fprintf (file, " ");
 187   else
 188     indent_to (file, indent + 4);
 189   cxx_print_binding (file, IDENTIFIER_NAMESPACE_BINDINGS (node), "bindings");
 190   if (indent == 0)
 191     fprintf (file, " ");
 192   else
 193     indent_to (file, indent + 4);
 194   cxx_print_binding (file, IDENTIFIER_BINDING (node), "local bindings");
 195   print_node (file, "label", IDENTIFIER_LABEL_VALUE (node), indent + 4);
 196   print_node (file, "template", IDENTIFIER_TEMPLATE (node), indent + 4);
 197 }
 198
 199 void
 200 cxx_print_lambda_node (FILE *file, tree node, int indent)
 201 {
 202   if (LAMBDA_EXPR_MUTABLE_P (node))
 203     fprintf (file, " /mutable");
 204   fprintf (file, " default_capture_mode=[");
 205   switch (LAMBDA_EXPR_DEFAULT_CAPTURE_MODE (node))
 206     {
 207     case CPLD_NONE:
 208       fprintf (file, "NONE");
 209       break;
 210     case CPLD_COPY:
 211       fprintf (file, "COPY");
 212       break;
 213     case CPLD_REFERENCE:
 214       fprintf (file, "CPLD_REFERENCE");
 215       break;
 216     default:
 217       fprintf (file, "??");
 218       break;
 219     }
 220   fprintf (file, "] ");
 221   print_node (file, "capture_list", LAMBDA_EXPR_CAPTURE_LIST (node), indent + 4);
 222   print_node (file, "this_capture", LAMBDA_EXPR_THIS_CAPTURE (node), indent + 4);
 223   print_node (file, "return_type", LAMBDA_EXPR_RETURN_TYPE (node), indent + 4);
 224   print_node (file, "closure", LAMBDA_EXPR_CLOSURE (node), indent + 4);
 225 }
 226
 227 void
 228 cxx_print_xnode (FILE *file, tree node, int indent)
 229 {
 230   switch (TREE_CODE (node))
 231     {
 232     case BASELINK:
 233       print_node (file, "functions", BASELINK_FUNCTIONS (node), indent + 4);
 234       print_node (file, "binfo", BASELINK_BINFO (node), indent + 4);
 235       print_node (file, "access_binfo", BASELINK_ACCESS_BINFO (node),
 236                   indent + 4);
 237       break;
 238     case OVERLOAD:
 239       print_node (file, "function", OVL_FUNCTION (node), indent+4);
 240       print_node (file, "chain", TREE_CHAIN (node), indent+4);
 241       break;
 242     case TEMPLATE_PARM_INDEX:
 243       print_node (file, "decl", TEMPLATE_PARM_DECL (node), indent+4);
 244       indent_to (file, indent + 3);
 245       fprintf (file, "index %d level %d orig_level %d",
 246                TEMPLATE_PARM_IDX (node), TEMPLATE_PARM_LEVEL (node),
 247                TEMPLATE_PARM_ORIG_LEVEL (node));
 248       break;
 249     case TEMPLATE_INFO:
 250       print_node (file, "template", TI_TEMPLATE (node), indent+4);
 251       print_node (file, "args", TI_ARGS (node), indent+4);
 252       if (TI_PENDING_TEMPLATE_FLAG (node))
 253         {
 254           indent_to (file, indent + 3);
 255           fprintf (file, "pending_template");
 256         }
 257       break;
 258     case CONSTRAINT_INFO:
 259       {
 260         tree_constraint_info *cinfo = (tree_constraint_info *)node;
 261         if (cinfo->template_reqs)
 262           print_node (file, "template_reqs", cinfo->template_reqs, indent+4);
 263         if (cinfo->declarator_reqs)
 264           print_node (file, "declarator_reqs", cinfo->declarator_reqs,
 265                       indent+4);
 266         print_node (file, "associated_constr",
 267                           cinfo->associated_constr, indent+4);
 268         break;
 269       }
 270     case ARGUMENT_PACK_SELECT:
 271       print_node (file, "pack", ARGUMENT_PACK_SELECT_FROM_PACK (node),
 272                   indent+4);
 273       indent_to (file, indent + 3);
 274       fprintf (file, "index %d", ARGUMENT_PACK_SELECT_INDEX (node));
 275       break;
 276     case DEFERRED_NOEXCEPT:
 277       print_node (file, "pattern", DEFERRED_NOEXCEPT_PATTERN (node), indent+4);
 278       print_node (file, "args", DEFERRED_NOEXCEPT_ARGS (node), indent+4);
 279       break;
 280     case TRAIT_EXPR:
 281       indent_to (file, indent+4);
 282       fprintf (file, "kind %d", TRAIT_EXPR_KIND (node));
 283       print_node (file, "type 1", TRAIT_EXPR_TYPE1 (node), indent+4);
 284       if (TRAIT_EXPR_TYPE2 (node))
 285         print_node (file, "type 2", TRAIT_EXPR_TYPE2 (node), indent+4);
 286       break;
 287     case LAMBDA_EXPR:
 288       cxx_print_lambda_node (file, node, indent);
 289       break;
 290     default:
 291       break;
 292     }
 293 }
 294
 295 /* Print the node NODE on standard error, for debugging.  */
 296
 297 DEBUG_FUNCTION void
 298 debug_tree (cp_expr node)
 299 {
 300   debug_tree (node.get_value());
 301 }