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/* Tree-dumping functionality for intermediate representation.

   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008

   Free Software Foundation, Inc.

   Written by Mark Mitchell <mark@codesourcery.com>

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3, or (at your option)

any later version.

GCC is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

#include "config.h"

#include "system.h"

#include "coretypes.h"

#include "tm.h"

#include "tree.h"

#include "cp-tree.h"

#include "tree-dump.h"

static void dump_access (dump_info_p, tree);

static void dump_op (dump_info_p, tree);

/* Dump a representation of the accessibility information associated

   with T.  */

static void

dump_access (dump_info_p di, tree t)

{

  if (TREE_PROTECTED(t))

    dump_string_field (di, "accs", "prot");

  else if (TREE_PRIVATE(t))

    dump_string_field (di, "accs", "priv");

  else

    dump_string_field (di, "accs", "pub");

}

/* Dump a representation of the specific operator for an overloaded

   operator associated with node t.  */

static void

dump_op (dump_info_p di, tree t)

{

  switch (DECL_OVERLOADED_OPERATOR_P (t)) {

    case NEW_EXPR:

      dump_string (di, "new");

      break;

    case VEC_NEW_EXPR:

      dump_string (di, "vecnew");

      break;

    case DELETE_EXPR:

      dump_string (di, "delete");

      break;

    case VEC_DELETE_EXPR:

      dump_string (di, "vecdelete");

      break;

    case UNARY_PLUS_EXPR:

      dump_string (di, "pos");

      break;

    case NEGATE_EXPR:

      dump_string (di, "neg");

      break;

    case ADDR_EXPR:

      dump_string (di, "addr");

      break;

    case INDIRECT_REF:

      dump_string(di, "deref");

      break;

    case BIT_NOT_EXPR:

      dump_string(di, "not");

      break;

    case TRUTH_NOT_EXPR:

      dump_string(di, "lnot");

      break;

    case PREINCREMENT_EXPR:

      dump_string(di, "preinc");

      break;

    case PREDECREMENT_EXPR:

      dump_string(di, "predec");

      break;

    case PLUS_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "plusassign");

      else

        dump_string(di, "plus");

      break;

    case MINUS_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "minusassign");

      else

        dump_string(di, "minus");

      break;

    case MULT_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "multassign");

      else

        dump_string (di, "mult");

      break;

    case TRUNC_DIV_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "divassign");

      else

        dump_string (di, "div");

      break;

    case TRUNC_MOD_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

         dump_string (di, "modassign");

      else

        dump_string (di, "mod");

      break;

    case BIT_AND_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "andassign");

      else

        dump_string (di, "and");

      break;

    case BIT_IOR_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "orassign");

      else

        dump_string (di, "or");

      break;

    case BIT_XOR_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "xorassign");

      else

        dump_string (di, "xor");

      break;

    case LSHIFT_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "lshiftassign");

      else

        dump_string (di, "lshift");

      break;

    case RSHIFT_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "rshiftassign");

      else

        dump_string (di, "rshift");

      break;

    case EQ_EXPR:

      dump_string (di, "eq");

      break;

    case NE_EXPR:

      dump_string (di, "ne");

      break;

    case LT_EXPR:

      dump_string (di, "lt");

      break;

    case GT_EXPR:

      dump_string (di, "gt");

      break;

    case LE_EXPR:

      dump_string (di, "le");

      break;

    case GE_EXPR:

      dump_string (di, "ge");

      break;

    case TRUTH_ANDIF_EXPR:

      dump_string (di, "land");

      break;

    case TRUTH_ORIF_EXPR:

      dump_string (di, "lor");

      break;

    case COMPOUND_EXPR:

      dump_string (di, "compound");

      break;

    case MEMBER_REF:

      dump_string (di, "memref");

      break;

    case COMPONENT_REF:

      dump_string (di, "ref");

      break;

    case ARRAY_REF:

      dump_string (di, "subs");

      break;

    case POSTINCREMENT_EXPR:

      dump_string (di, "postinc");

      break;

    case POSTDECREMENT_EXPR:

      dump_string (di, "postdec");

      break;

    case CALL_EXPR:

      dump_string (di, "call");

      break;

    case NOP_EXPR:

      if (DECL_ASSIGNMENT_OPERATOR_P (t))

        dump_string (di, "assign");

      break;

    default:

      break;

  }

}

bool

cp_dump_tree (void* dump_info, tree t)

{

  enum tree_code code;

  dump_info_p di = (dump_info_p) dump_info;

  /* Figure out what kind of node this is.  */

  code = TREE_CODE (t);

  if (DECL_P (t))

    {

      if (DECL_LANG_SPECIFIC (t) && DECL_LANGUAGE (t) != lang_cplusplus)

        dump_string_field (di, "lang", language_to_string (DECL_LANGUAGE (t)));

    }

  switch (code)

    {

    case IDENTIFIER_NODE:

      if (IDENTIFIER_OPNAME_P (t))

        {

          dump_string_field (di, "note", "operator");

          return true;

        }

      else if (IDENTIFIER_TYPENAME_P (t))

        {

          dump_child ("tynm", TREE_TYPE (t));

          return true;

        }

      break;

    case OFFSET_TYPE:

      dump_string_field (di, "note", "ptrmem");

      dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));

      dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));

      return true;

    case RECORD_TYPE:

      if (TYPE_PTRMEMFUNC_P (t))

        {

          dump_string_field (di, "note", "ptrmem");

          dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));

          dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));

          return true;

        }

      /* Fall through.  */

    case UNION_TYPE:

      /* Is it a type used as a base? */

      if (TYPE_CONTEXT (t) && TREE_CODE (TYPE_CONTEXT (t)) == TREE_CODE (t)

          && CLASSTYPE_AS_BASE (TYPE_CONTEXT (t)) == t)

        {

          dump_child ("bfld", TYPE_CONTEXT (t));

          return true;

        }

      if (! MAYBE_CLASS_TYPE_P (t))

        break;

      dump_child ("vfld", TYPE_VFIELD (t));

      if (CLASSTYPE_TEMPLATE_SPECIALIZATION(t))

        dump_string(di, "spec");

      if (!dump_flag (di, TDF_SLIM, t) && TYPE_BINFO (t))

        {

          int i;

          tree binfo;

          tree base_binfo;

          for (binfo = TYPE_BINFO (t), i = 0;

               BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)

            {

              dump_child ("base", BINFO_TYPE (base_binfo));

              if (BINFO_VIRTUAL_P (base_binfo))

                dump_string_field (di, "spec", "virt");

              dump_access (di, base_binfo);

            }

        }

      break;

    case FIELD_DECL:

      dump_access (di, t);

      if (DECL_MUTABLE_P (t))

        dump_string_field (di, "spec", "mutable");

      break;

    case VAR_DECL:

      if (TREE_CODE (CP_DECL_CONTEXT (t)) == RECORD_TYPE)

        dump_access (di, t);

      if (TREE_STATIC (t) && !TREE_PUBLIC (t))

        dump_string_field (di, "link", "static");

      break;

    case FUNCTION_DECL:

      if (!DECL_THUNK_P (t))

        {

          if (DECL_OVERLOADED_OPERATOR_P (t)) {

            dump_string_field (di, "note", "operator");

            dump_op (di, t);

          }

          if (DECL_FUNCTION_MEMBER_P (t))

            {

              dump_string_field (di, "note", "member");

              dump_access (di, t);

            }

          if (DECL_PURE_VIRTUAL_P (t))

            dump_string_field (di, "spec", "pure");

          if (DECL_VIRTUAL_P (t))

            dump_string_field (di, "spec", "virt");

          if (DECL_CONSTRUCTOR_P (t))

            dump_string_field (di, "note", "constructor");

          if (DECL_DESTRUCTOR_P (t))

            dump_string_field (di, "note", "destructor");

          if (DECL_CONV_FN_P (t))

            dump_string_field (di, "note", "conversion");

          if (DECL_GLOBAL_CTOR_P (t))

            dump_string_field (di, "note", "global init");

          if (DECL_GLOBAL_DTOR_P (t))

            dump_string_field (di, "note", "global fini");

          if (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t))

            dump_string_field (di, "note", "pseudo tmpl");

        }

      else

        {

          tree virt = THUNK_VIRTUAL_OFFSET (t);

          dump_string_field (di, "note", "thunk");

          if (DECL_THIS_THUNK_P (t))

            dump_string_field (di, "note", "this adjusting");

          else

            {

              dump_string_field (di, "note", "result adjusting");

              if (virt)

                virt = BINFO_VPTR_FIELD (virt);

            }

          dump_int (di, "fixd", THUNK_FIXED_OFFSET (t));

          if (virt)

            dump_int (di, "virt", tree_low_cst (virt, 0));

          dump_child ("fn", DECL_INITIAL (t));

        }

      break;

    case NAMESPACE_DECL:

      if (DECL_NAMESPACE_ALIAS (t))

        dump_child ("alis", DECL_NAMESPACE_ALIAS (t));

      else if (!dump_flag (di, TDF_SLIM, t))

        dump_child ("dcls", cp_namespace_decls (t));

      break;

    case TEMPLATE_DECL:

      dump_child ("rslt", DECL_TEMPLATE_RESULT (t));

      dump_child ("inst", DECL_TEMPLATE_INSTANTIATIONS (t));

      dump_child ("spcs", DECL_TEMPLATE_SPECIALIZATIONS (t));

      dump_child ("prms", DECL_TEMPLATE_PARMS (t));

      break;

    case OVERLOAD:

      dump_child ("crnt", OVL_CURRENT (t));

      dump_child ("chan", OVL_CHAIN (t));

      break;

    case TRY_BLOCK:

      dump_stmt (di, t);

      if (CLEANUP_P (t))

        dump_string_field (di, "note", "cleanup");

      dump_child ("body", TRY_STMTS (t));

      dump_child ("hdlr", TRY_HANDLERS (t));

      break;

    case EH_SPEC_BLOCK:

      dump_stmt (di, t);

      dump_child ("body", EH_SPEC_STMTS (t));

      dump_child ("raises", EH_SPEC_RAISES (t));

      break;

    case PTRMEM_CST:

      dump_child ("clas", PTRMEM_CST_CLASS (t));

      dump_child ("mbr", PTRMEM_CST_MEMBER (t));

      break;

    case THROW_EXPR:

      /* These nodes are unary, but do not have code class `1'.  */

      dump_child ("op 0", TREE_OPERAND (t, 0));

      break;

    case AGGR_INIT_EXPR:

      {

        int i = 0;

        tree arg;

        aggr_init_expr_arg_iterator iter;

        dump_int (di, "ctor", AGGR_INIT_VIA_CTOR_P (t));

        dump_child ("fn", AGGR_INIT_EXPR_FN (t));

        FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)

          {

            char buffer[32];

            sprintf (buffer, "%u", i);

            dump_child (buffer, arg);

            i++;

          }

        dump_child ("decl", AGGR_INIT_EXPR_SLOT (t));

      }

      break;

    case HANDLER:

      dump_stmt (di, t);

      dump_child ("parm", HANDLER_PARMS (t));

      dump_child ("body", HANDLER_BODY (t));

      break;

    case MUST_NOT_THROW_EXPR:

      dump_stmt (di, t);

      dump_child ("body", TREE_OPERAND (t, 0));

      break;

    case USING_STMT:

      dump_stmt (di, t);

      dump_child ("nmsp", USING_STMT_NAMESPACE (t));

      break;

    case CLEANUP_STMT:

      dump_stmt (di, t);

      dump_child ("decl", CLEANUP_DECL (t));

      dump_child ("expr", CLEANUP_EXPR (t));

      dump_child ("body", CLEANUP_BODY (t));

      break;

    case IF_STMT:

      dump_stmt (di, t);

      dump_child ("cond", IF_COND (t));

      dump_child ("then", THEN_CLAUSE (t));

      dump_child ("else", ELSE_CLAUSE (t));

      break;

    case BREAK_STMT:

    case CONTINUE_STMT:

      dump_stmt (di, t);

      break;

    case DO_STMT:

      dump_stmt (di, t);

      dump_child ("body", DO_BODY (t));

      dump_child ("cond", DO_COND (t));

      break;

    case FOR_STMT:

      dump_stmt (di, t);

      dump_child ("init", FOR_INIT_STMT (t));

      dump_child ("cond", FOR_COND (t));

      dump_child ("expr", FOR_EXPR (t));

      dump_child ("body", FOR_BODY (t));

      break;

    case SWITCH_STMT:

      dump_stmt (di, t);

      dump_child ("cond", SWITCH_STMT_COND (t));

      dump_child ("body", SWITCH_STMT_BODY (t));

      break;

    case WHILE_STMT:

      dump_stmt (di, t);

      dump_child ("cond", WHILE_COND (t));

      dump_child ("body", WHILE_BODY (t));

      break;

    case STMT_EXPR:

      dump_child ("stmt", STMT_EXPR_STMT (t));

      break;

    case EXPR_STMT:

      dump_stmt (di, t);

      dump_child ("expr", EXPR_STMT_EXPR (t));

      break;

    default:

      break;

    }

  return c_dump_tree (di, t);

}