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/* Process the ObjC-specific declarations and variables for

   the Objective-C++ compiler.

   Copyright (C) 2005, 2007, 2010 Free Software Foundation, Inc.

   Contributed by Ziemowit Laski  <zlaski@apple.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 "hashtab.h"

#include "c-family/c-objc.h"

#include "objc-act.h"

#include "objcp-decl.h"

/* Hacks to simulate start_struct() and finish_struct(). */

tree

objcp_start_struct (location_t loc ATTRIBUTE_UNUSED,

                    enum tree_code code ATTRIBUTE_UNUSED, tree name)

{

  tree s;

  /* The idea here is to mimic the actions that the C++ parser takes when

     constructing 'extern "C" struct NAME {'.  */

  push_lang_context (lang_name_c);

  if (!name)

    name = make_anon_name ();

  s = xref_tag (record_type, name, ts_global, 0);

  CLASSTYPE_DECLARED_CLASS (s) = 0;  /* this is a 'struct', not a 'class'.  */

  xref_basetypes (s, NULL_TREE);     /* no base classes here!  */

  return begin_class_definition (s, NULL_TREE);

}

tree

objcp_finish_struct (location_t loc ATTRIBUTE_UNUSED,

                     tree t, tree fieldlist, tree attributes)

{

  tree field, next_field;

  for (field = fieldlist; field; field = next_field)

  {

    next_field = TREE_CHAIN (field);      /* insert one field at a time;  */

    TREE_CHAIN (field) = NULL_TREE;       /* otherwise, grokfield croaks. */

    finish_member_declaration (field);

  }

  t = finish_struct (t, attributes);

  /* If we are inside an @interface and are generating the list of

     ivars, we need to check for duplicate ivars.

  */

  if (fieldlist)

    objc_detect_field_duplicates (true);

  pop_lang_context ();

  return t;

}

void

objcp_finish_function (void)

{

  /* The C++ flavor of 'finish_function' does not generate RTL -- one has

     to call 'expand_or_defer_fn' to do that.  */

  expand_or_defer_fn (finish_function (0));

}

tree

objcp_xref_tag (enum tree_code code ATTRIBUTE_UNUSED, tree name)

{

  return xref_tag (record_type, name, ts_global, false);

}

int

objcp_comptypes (tree type1, tree type2)

{

  return comptypes (type1, type2, COMPARE_STRICT);

}

tree

objcp_begin_compound_stmt (int flags ATTRIBUTE_UNUSED)

{

  return begin_compound_stmt (0);

}

tree

objcp_end_compound_stmt (tree stmt, int flags ATTRIBUTE_UNUSED)

{

  /* The following has been snarfed from

     cp/semantics.c:finish_compound_stmt().  */

  if (TREE_CODE (stmt) == BIND_EXPR)

    BIND_EXPR_BODY (stmt) = do_poplevel (BIND_EXPR_BODY (stmt));

  else if (STATEMENT_LIST_NO_SCOPE (stmt))

    stmt = pop_stmt_list (stmt);

  else

    stmt = do_poplevel (stmt);

  return stmt;

}