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/* Language-dependent hooks for Objective-C++.

   Copyright 2005, 2007, 2008 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 "c-common.h"

#include "toplev.h"

#include "objc-act.h"

#include "langhooks.h"

#include "langhooks-def.h"

#include "diagnostic.h"

#include "debug.h"

#include "cp-objcp-common.h"

#include "except.h"

enum c_language_kind c_language = clk_objcxx;

static void objcxx_init_ts (void);

static tree objcxx_eh_personality (void);

/* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;

   consequently, there should be very few hooks below.  */

#undef LANG_HOOKS_NAME

#define LANG_HOOKS_NAME "GNU Objective-C++"

#undef LANG_HOOKS_INIT

#define LANG_HOOKS_INIT objc_init

#undef LANG_HOOKS_DECL_PRINTABLE_NAME

#define LANG_HOOKS_DECL_PRINTABLE_NAME  objc_printable_name

#undef LANG_HOOKS_GIMPLIFY_EXPR 

#define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr

#undef LANG_HOOKS_INIT_TS

#define LANG_HOOKS_INIT_TS objcxx_init_ts

#undef LANG_HOOKS_EH_PERSONALITY

#define LANG_HOOKS_EH_PERSONALITY objcxx_eh_personality

#undef LANG_HOOKS_EH_RUNTIME_TYPE

#define LANG_HOOKS_EH_RUNTIME_TYPE build_eh_type_type

/* Each front end provides its own lang hook initializer.  */

struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;

/* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;

   there should be very few (if any) routines below.  */

tree

objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain,

                             tree in_decl, bool function_p ATTRIBUTE_UNUSED)

{

#define RECURSE(NODE)                                                   \

  tsubst_copy_and_build (NODE, args, complain, in_decl,                 \

                         /*function_p=*/false,                          \

                         /*integral_constant_expression_p=*/false)

  /* The following two can only occur in Objective-C++.  */

  switch ((int) TREE_CODE (t))

    {

    case MESSAGE_SEND_EXPR:

      return objc_finish_message_expr

        (RECURSE (TREE_OPERAND (t, 0)),

         TREE_OPERAND (t, 1),  /* No need to expand the selector.  */

         RECURSE (TREE_OPERAND (t, 2)));

    case CLASS_REFERENCE_EXPR:

      return objc_get_class_reference

        (RECURSE (TREE_OPERAND (t, 0)));

    default:

      break;

    }

  /* Fall back to C++ processing.  */

  return NULL_TREE;

#undef RECURSE

}

static void

objcxx_init_ts (void)

{

  /* objc decls */

  tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_NON_COMMON] = 1;

  tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_NON_COMMON] = 1;

  tree_contains_struct[KEYWORD_DECL][TS_DECL_NON_COMMON] = 1;

  tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_WITH_VIS] = 1;

  tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_WITH_VIS] = 1;

  tree_contains_struct[KEYWORD_DECL][TS_DECL_WITH_VIS] = 1;

  tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_WRTL] = 1;

  tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_WRTL] = 1;

  tree_contains_struct[KEYWORD_DECL][TS_DECL_WRTL] = 1;

  tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_MINIMAL] = 1;

  tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_MINIMAL] = 1;

  tree_contains_struct[KEYWORD_DECL][TS_DECL_MINIMAL] = 1;

  tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_COMMON] = 1;

  tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_COMMON] = 1;

  tree_contains_struct[KEYWORD_DECL][TS_DECL_COMMON] = 1;

  /* C++ decls */

  tree_contains_struct[NAMESPACE_DECL][TS_DECL_NON_COMMON] = 1;

  tree_contains_struct[USING_DECL][TS_DECL_NON_COMMON] = 1;

  tree_contains_struct[TEMPLATE_DECL][TS_DECL_NON_COMMON] = 1;

  tree_contains_struct[NAMESPACE_DECL][TS_DECL_WITH_VIS] = 1;

  tree_contains_struct[USING_DECL][TS_DECL_WITH_VIS] = 1;

  tree_contains_struct[TEMPLATE_DECL][TS_DECL_WITH_VIS] = 1;

  tree_contains_struct[NAMESPACE_DECL][TS_DECL_WRTL] = 1;

  tree_contains_struct[USING_DECL][TS_DECL_WRTL] = 1;

  tree_contains_struct[TEMPLATE_DECL][TS_DECL_WRTL] = 1;

  tree_contains_struct[NAMESPACE_DECL][TS_DECL_COMMON] = 1;

  tree_contains_struct[USING_DECL][TS_DECL_COMMON] = 1;

  tree_contains_struct[TEMPLATE_DECL][TS_DECL_COMMON] = 1;

  tree_contains_struct[NAMESPACE_DECL][TS_DECL_MINIMAL] = 1;

  tree_contains_struct[USING_DECL][TS_DECL_MINIMAL] = 1;

  tree_contains_struct[TEMPLATE_DECL][TS_DECL_MINIMAL] = 1;

  init_shadowed_var_for_decl ();

}

static GTY(()) tree objcp_eh_personality_decl;

static tree

objcxx_eh_personality (void)

{

  if (!objcp_eh_personality_decl)

    objcp_eh_personality_decl

        = build_personality_function (USING_SJLJ_EXCEPTIONS

                                      ? "__gxx_personality_sj0"

                                      : "__gxx_personality_v0");

  return objcp_eh_personality_decl;

}

void

finish_file (void)

{

  objc_finish_file ();

}

#include "gtype-objcp.h"