/* Stub functions for Objective-C and Objective-C++ routines
   that are called from within the C and C++ front-ends,
   respectively.
   Copyright (C) 1991, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   2004, 2005, 2007, 2009, 2010, 2011 Free Software Foundation, Inc.

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 "tree.h"
#include "c-common.h"
#include "c-objc.h"

tree
objc_is_class_name (tree ARG_UNUSED (arg))
{
  return 0;
}

tree
objc_is_id (tree ARG_UNUSED (arg))
{
  return 0;
}

tree
objc_is_object_ptr (tree ARG_UNUSED (arg))
{
  return 0;
}

bool objc_diagnose_private_ivar (tree ARG_UNUSED (arg))
{
  return false;
}

tree
objc_lookup_ivar (tree other, tree ARG_UNUSED (arg))
{
  /* Just use whatever C/C++ found.  */
  return other;
}

void
objc_check_decl (tree ARG_UNUSED (decl))
{
}

void
objc_check_global_decl (tree ARG_UNUSED (decl))
{
}

tree
objc_common_type (tree ARG_UNUSED (type1), tree ARG_UNUSED (type2))
{
  return 0;
}

bool
objc_compare_types (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
		    int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
{
  return false;
}

bool
objc_have_common_type (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
		       int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
{
  return false;
}

void
objc_volatilize_decl (tree ARG_UNUSED (decl))
{
}

tree
objc_rewrite_function_call (tree function, tree ARG_UNUSED (first_param))
{
  return function;
}

tree
objc_message_selector (void)
{
  return 0;
}

void
objc_declare_alias (tree ARG_UNUSED (alias), tree ARG_UNUSED (orig))
{
}

void
objc_declare_class (tree ARG_UNUSED (identifier))
{
}

void
objc_declare_protocol (tree ARG_UNUSED (name), tree ARG_UNUSED (attributes))
{
}

void
objc_start_protocol (tree ARG_UNUSED (proto),
		     tree ARG_UNUSED (protorefs),
		     tree ARG_UNUSED (attribs))
{
}

void 
objc_set_method_opt (bool ARG_UNUSED (optional))
{
}

void
objc_start_class_interface (tree ARG_UNUSED (name),
			    tree ARG_UNUSED (super),
			    tree ARG_UNUSED (protos),
			    tree ARG_UNUSED (attribs))
{
}

void
objc_start_category_interface (tree ARG_UNUSED (name),
			       tree ARG_UNUSED (categ),
			       tree ARG_UNUSED (protos),
			       tree ARG_UNUSED (attribs))
{
}

void
objc_continue_interface (void)
{
}

void
objc_finish_interface (void)
{
}

void
objc_add_instance_variable (tree ARG_UNUSED (decl))
{
}

void
objc_set_visibility (objc_ivar_visibility_kind ARG_UNUSED (vis))
{
}

void
objc_start_class_implementation (tree ARG_UNUSED (name),
				 tree ARG_UNUSED (super))
{
}

void
objc_start_category_implementation (tree ARG_UNUSED (name),
				    tree ARG_UNUSED (categ))
{
}

void
objc_continue_implementation (void)
{
}

void
objc_clear_super_receiver (void)
{
}

void
objc_finish_implementation (void)
{
}

void
objc_add_method_declaration (bool ARG_UNUSED (is_class_method),
			     tree ARG_UNUSED (signature),
			     tree ARG_UNUSED (attributes))
{
}

bool
objc_start_method_definition (bool ARG_UNUSED (is_class_method),
			      tree ARG_UNUSED (signature),
			      tree ARG_UNUSED (attributes),
			      tree ARG_UNUSED (expr))
{
  return true;
}

void
objc_finish_method_definition (tree ARG_UNUSED (fndecl))
{
}

bool 
objc_method_decl (enum tree_code ARG_UNUSED(opcode))
{
  return false;
}

tree
objc_build_keyword_decl (tree ARG_UNUSED (selector),
			 tree ARG_UNUSED (type),
			 tree ARG_UNUSED (identifier),
			 tree ARG_UNUSED (attributes))
{
  return 0;
}

tree
objc_build_method_signature (bool ARG_UNUSED (is_class_method),
			     tree ARG_UNUSED (rettype),
			     tree ARG_UNUSED (selectors),
			     tree ARG_UNUSED (optparms),
			     bool ARG_UNUSED (ellipsis))
{
  return 0;
}

tree
objc_build_encode_expr (tree ARG_UNUSED (expr))
{
  return 0;
}

tree
objc_build_protocol_expr (tree ARG_UNUSED (expr))
{
  return 0;
}

tree
objc_build_selector_expr (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
{
  return 0;
}

tree
objc_build_message_expr (tree ARG_UNUSED (receiver), tree ARG_UNUSED (args))
{
  return 0;
}

tree
objc_build_string_object (tree ARG_UNUSED (str))
{
  return 0;
}

tree
objc_get_class_reference (tree ARG_UNUSED (name))
{
  return 0;
}

bool
objc_detect_field_duplicates (bool ARG_UNUSED (check_superclasses_only))
{
  return false;
}

tree
objc_get_protocol_qualified_type (tree ARG_UNUSED (name),
				  tree ARG_UNUSED (protos))
{
  return 0;
}

int
objc_static_init_needed_p (void)
{
  return 0;
}

tree
objc_generate_static_init_call (tree ARG_UNUSED (ctors))
{
  return 0;
}

int
objc_is_public (tree ARG_UNUSED (expr), tree ARG_UNUSED (identifier))
{
  return 1;
}

tree
objc_get_class_ivars (tree ARG_UNUSED (name))
{
  return 0;
}

void
objc_add_property_declaration (location_t ARG_UNUSED (location), 
			       tree ARG_UNUSED (decl),
			       bool ARG_UNUSED (parsed_property_readonly),
			       bool ARG_UNUSED (parsed_property_readwrite),
			       bool ARG_UNUSED (parsed_property_assign),
			       bool ARG_UNUSED (parsed_property_retain),
			       bool ARG_UNUSED (parsed_property_copy),
			       bool ARG_UNUSED (parsed_property_nonatomic),
			       tree ARG_UNUSED (parsed_property_getter_ident),
			       tree ARG_UNUSED (parsed_property_setter_ident))
{
}

bool
objc_is_property_ref (tree ARG_UNUSED (node))
{
  return 0;
}

tree
objc_maybe_build_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
{
  return 0;
}

tree
objc_build_class_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
{
  return 0;
}

tree
objc_maybe_build_modify_expr (tree ARG_UNUSED (lhs), tree ARG_UNUSED (rhs))
{
  return 0;
}

tree
objc_build_incr_expr_for_property_ref (location_t ARG_UNUSED (location),
				       enum tree_code ARG_UNUSED (code),
				       tree ARG_UNUSED (argument),
				       tree ARG_UNUSED (increment))
{
  return 0;
}

void
objc_add_synthesize_declaration (location_t ARG_UNUSED (start_locus), 
				 tree ARG_UNUSED (property_and_ivar_list))
{
}

void
objc_add_dynamic_declaration (location_t ARG_UNUSED (start_locus), 
			      tree ARG_UNUSED (property_list))
{
}

const char *
objc_maybe_printable_name (tree ARG_UNUSED (decl), 
			   int ARG_UNUSED (v))
{
  return NULL;
}

tree
objc_build_throw_stmt (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
{
  return 0;
}

tree
objc_build_synchronized (location_t ARG_UNUSED (start_locus),
			 tree ARG_UNUSED (mutex), tree ARG_UNUSED (body))
{
  return 0;
}

void
objc_begin_try_stmt (location_t ARG_UNUSED (try_locus), tree ARG_UNUSED (body))
{
}

void
objc_begin_catch_clause (tree ARG_UNUSED (decl))
{
}

void
objc_finish_catch_clause (void)
{
}

void
objc_build_finally_clause (location_t ARG_UNUSED (finally_locus),
			   tree ARG_UNUSED (body))
{
}

tree
objc_finish_try_stmt (void)
{
  return 0;
}

tree
objc_generate_write_barrier (tree ARG_UNUSED (lhs),
			     enum tree_code ARG_UNUSED (modifycode),
			     tree ARG_UNUSED (rhs))
{
  return 0;
}

void
objc_finish_foreach_loop (location_t ARG_UNUSED (location), tree ARG_UNUSED (object_expression),
			  tree ARG_UNUSED (collection_expression), tree ARG_UNUSED (for_body),
			  tree ARG_UNUSED (break_label), tree ARG_UNUSED (continue_label))
{
  return;
}

void
objc_write_global_declarations (void)
{
}

bool
objc_string_ref_type_p (tree ARG_UNUSED (strp))
{
   return false;
}

void
objc_check_format_arg (tree ARG_UNUSED (format_arg), 
		       tree ARG_UNUSED (args_list))
{
}

void
objc_finish_function (void)
{
}

void
objc_maybe_warn_exceptions (location_t ARG_UNUSED (loc))
{
}