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

/* Language-dependent hooks for Objective-C++.
   Copyright (C) 2005-2022 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 "cp-tree.h"
#include "c-family/c-objc.h"
#include "objc-act.h"
#include "langhooks.h"
#include "langhooks-def.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 ();
}

#include "gtype-objcp.h"
Commit	Line	Data
b2e61dde	1	/* Language-dependent hooks for Objective-C++.
7adcbafe	2	Copyright (C) 2005-2022 Free Software Foundation, Inc.
b2e61dde MS	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
af84f9c5	9	the Free Software Foundation; either version 3, or (at your option)
b2e61dde MS	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
af84f9c5 NC	18	along with GCC; see the file COPYING3. If not see
	19	<http://www.gnu.org/licenses/>. */
	20
b2e61dde MS	21	#include "config.h"
	22	#include "system.h"
	23	#include "coretypes.h"
b2e61dde	24	#include "cp-tree.h"
61d3ce20	25	#include "c-family/c-objc.h"
b2e61dde MS	26	#include "objc-act.h"
	27	#include "langhooks.h"
	28	#include "langhooks-def.h"
b2e61dde MS	29	#include "cp-objcp-common.h"
	30
	31	enum c_language_kind c_language = clk_objcxx;
3ed8593d	32	static void objcxx_init_ts (void);
b2e61dde MS	33
	34	/* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
	35	consequently, there should be very few hooks below. */
	36
	37	#undef LANG_HOOKS_NAME
	38	#define LANG_HOOKS_NAME "GNU Objective-C++"
	39	#undef LANG_HOOKS_INIT
	40	#define LANG_HOOKS_INIT objc_init
98273e5a ZL	41	#undef LANG_HOOKS_GIMPLIFY_EXPR
98273e5a ZL	42	#define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr
3ed8593d AP	43	#undef LANG_HOOKS_INIT_TS
	44	#define LANG_HOOKS_INIT_TS objcxx_init_ts
	45
b2e61dde	46	/* Each front end provides its own lang hook initializer. */
4537ec0c	47	struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
b2e61dde	48
b2e61dde MS	49	/* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
	50	there should be very few (if any) routines below. */
	51
	52	tree
	53	objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain,
	54	tree in_decl, bool function_p ATTRIBUTE_UNUSED)
	55	{
015c2c66 MM	56	#define RECURSE(NODE) \
	57	tsubst_copy_and_build (NODE, args, complain, in_decl, \
	58	/function_p=/false, \
	59	/integral_constant_expression_p=/false)
b2e61dde MS	60
	61	/* The following two can only occur in Objective-C++. */
	62
	63	switch ((int) TREE_CODE (t))
	64	{
	65	case MESSAGE_SEND_EXPR:
	66	return objc_finish_message_expr
	67	(RECURSE (TREE_OPERAND (t, 0)),
	68	TREE_OPERAND (t, 1), /* No need to expand the selector. */
b4f588c4	69	RECURSE (TREE_OPERAND (t, 2)), NULL);
b2e61dde MS	70
	71	case CLASS_REFERENCE_EXPR:
	72	return objc_get_class_reference
	73	(RECURSE (TREE_OPERAND (t, 0)));
	74
	75	default:
	76	break;
	77	}
	78
	79	/* Fall back to C++ processing. */
	80	return NULL_TREE;
	81
	82	#undef RECURSE
	83	}
	84
3ed8593d AP	85	static void
	86	objcxx_init_ts (void)
	87	{
81f653d6 NF	88	objc_common_init_ts ();
81f653d6 NF	89	cp_common_init_ts ();
3ed8593d AP	90	}
3ed8593d AP	91
b2e61dde	92	#include "gtype-objcp.h"