[thirdparty/gcc.git] / gcc / objcp / objcp-lang.c

/* Language-dependent hooks for Objective-C++.
   Copyright (C) 2005-2015 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 "vec.h"
#include "alias.h"
#include "symtab.h"
#include "options.h"
#include "inchash.h"
#include "tree.h"
#include "cp-tree.h"
#include "c-family/c-common.h"
#include "c-family/c-objc.h"
#include "objc-act.h"
#include "langhooks.h"
#include "langhooks-def.h"
#include "target.h"
#include "cp-objcp-common.h"

enum c_language_kind c_language = clk_objcxx;
static void objcxx_init_ts (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_GIMPLIFY_EXPR 
#define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr
#undef LANG_HOOKS_INIT_TS
#define LANG_HOOKS_INIT_TS objcxx_init_ts

/* 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)), NULL);

    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_common_init_ts ();
  cp_common_init_ts ();

  init_shadowed_var_for_decl ();
}

#include "gtype-objcp.h"
Commit	Line	Data
82d4ee2b	1	/* Language-dependent hooks for Objective-C++.
d353bf18	2	Copyright (C) 2005-2015 Free Software Foundation, Inc.
82d4ee2b	3	Contributed by Ziemowit Laski <zlaski@apple.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
97e6b62e	9	the Free Software Foundation; either version 3, or (at your option)
82d4ee2b	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
97e6b62e	18	along with GCC; see the file COPYING3. If not see
	19	<http://www.gnu.org/licenses/>. */
	20
82d4ee2b	21	#include "config.h"
	22	#include "system.h"
	23	#include "coretypes.h"
	24	#include "tm.h"
b20a8bb4	25	#include "vec.h"
b20a8bb4	26	#include "alias.h"
	27	#include "symtab.h"
	28	#include "options.h"
b20a8bb4	29	#include "inchash.h"
82d4ee2b	30	#include "tree.h"
82d4ee2b	31	#include "cp-tree.h"
7bedc3a0	32	#include "c-family/c-common.h"
6c536c4f	33	#include "c-family/c-objc.h"
82d4ee2b	34	#include "objc-act.h"
	35	#include "langhooks.h"
	36	#include "langhooks-def.h"
cc7d6aed	37	#include "target.h"
82d4ee2b	38	#include "cp-objcp-common.h"
	39
	40	enum c_language_kind c_language = clk_objcxx;
4dd41a12	41	static void objcxx_init_ts (void);
82d4ee2b	42
	43	/* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
	44	consequently, there should be very few hooks below. */
	45
	46	#undef LANG_HOOKS_NAME
	47	#define LANG_HOOKS_NAME "GNU Objective-C++"
	48	#undef LANG_HOOKS_INIT
	49	#define LANG_HOOKS_INIT objc_init
bf2e0d73	50	#undef LANG_HOOKS_GIMPLIFY_EXPR
bf2e0d73	51	#define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr
4dd41a12	52	#undef LANG_HOOKS_INIT_TS
	53	#define LANG_HOOKS_INIT_TS objcxx_init_ts
	54
82d4ee2b	55	/* Each front end provides its own lang hook initializer. */
34e5cced	56	struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
82d4ee2b	57
82d4ee2b	58	/* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
	59	there should be very few (if any) routines below. */
	60
	61	tree
	62	objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain,
	63	tree in_decl, bool function_p ATTRIBUTE_UNUSED)
	64	{
bde9ebf7	65	#define RECURSE(NODE) \
	66	tsubst_copy_and_build (NODE, args, complain, in_decl, \
	67	/function_p=/false, \
	68	/integral_constant_expression_p=/false)
82d4ee2b	69
	70	/* The following two can only occur in Objective-C++. */
	71
	72	switch ((int) TREE_CODE (t))
	73	{
	74	case MESSAGE_SEND_EXPR:
	75	return objc_finish_message_expr
	76	(RECURSE (TREE_OPERAND (t, 0)),
	77	TREE_OPERAND (t, 1), /* No need to expand the selector. */
d67e8485	78	RECURSE (TREE_OPERAND (t, 2)), NULL);
82d4ee2b	79
	80	case CLASS_REFERENCE_EXPR:
	81	return objc_get_class_reference
	82	(RECURSE (TREE_OPERAND (t, 0)));
	83
	84	default:
	85	break;
	86	}
	87
	88	/* Fall back to C++ processing. */
	89	return NULL_TREE;
	90
	91	#undef RECURSE
	92	}
	93
4dd41a12	94	static void
	95	objcxx_init_ts (void)
	96	{
9b88d08d	97	objc_common_init_ts ();
9b88d08d	98	cp_common_init_ts ();
1118bb28	99
4dd41a12	100	init_shadowed_var_for_decl ();
	101	}
	102
82d4ee2b	103	#include "gtype-objcp.h"