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/* Declarations for objc-act.c.

   Copyright (C) 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009

   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/>.  */

#ifndef GCC_OBJC_ACT_H

#define GCC_OBJC_ACT_H

/* For enum gimplify_status */

#include "gimple.h"

/*** Language hooks ***/

bool objc_init (void);

const char *objc_printable_name (tree, int);

void objc_finish_file (void);

tree objc_fold_obj_type_ref (tree, tree);

int objc_gimplify_expr (tree *, gimple_seq *, gimple_seq *);

tree objc_eh_runtime_type (tree);

tree objc_eh_personality (void);

/* NB: The remaining public functions are prototyped in c-common.h, for the

   benefit of stub-objc.c and objc-act.c.  */

/* Objective-C structures */

#define CLASS_LANG_SLOT_ELTS            5

#define PROTOCOL_LANG_SLOT_ELTS         2

#define OBJC_INFO_SLOT_ELTS             2

/* KEYWORD_DECL */

#define KEYWORD_KEY_NAME(DECL) ((DECL)->decl_minimal.name)

#define KEYWORD_ARG_NAME(DECL) ((DECL)->decl_non_common.arguments)

/* INSTANCE_METHOD_DECL, CLASS_METHOD_DECL */

#define METHOD_SEL_NAME(DECL) ((DECL)->decl_minimal.name)

#define METHOD_SEL_ARGS(DECL) ((DECL)->decl_non_common.arguments)

#define METHOD_ADD_ARGS(DECL) ((DECL)->decl_non_common.result)

#define METHOD_ADD_ARGS_ELLIPSIS_P(DECL) ((DECL)->decl_common.lang_flag_0)

#define METHOD_DEFINITION(DECL) ((DECL)->decl_common.initial)

#define METHOD_ENCODING(DECL) ((DECL)->decl_minimal.context)

/* CLASS_INTERFACE_TYPE, CLASS_IMPLEMENTATION_TYPE,

   CATEGORY_INTERFACE_TYPE, CATEGORY_IMPLEMENTATION_TYPE,

   PROTOCOL_INTERFACE_TYPE */

#define CLASS_NAME(CLASS) ((CLASS)->type.name)

#define CLASS_SUPER_NAME(CLASS) (TYPE_CHECK (CLASS)->type.context)

#define CLASS_IVARS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 0)

#define CLASS_RAW_IVARS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 1)

#define CLASS_NST_METHODS(CLASS) ((CLASS)->type.minval)

#define CLASS_CLS_METHODS(CLASS) ((CLASS)->type.maxval)

#define CLASS_STATIC_TEMPLATE(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 2)

#define CLASS_CATEGORY_LIST(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 3)

#define CLASS_PROTOCOL_LIST(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 4)

#define PROTOCOL_NAME(CLASS) ((CLASS)->type.name)

#define PROTOCOL_LIST(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 0)

#define PROTOCOL_NST_METHODS(CLASS) ((CLASS)->type.minval)

#define PROTOCOL_CLS_METHODS(CLASS) ((CLASS)->type.maxval)

#define PROTOCOL_FORWARD_DECL(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 1)

#define PROTOCOL_DEFINED(CLASS) TREE_USED (CLASS)

/* ObjC-specific information pertaining to RECORD_TYPEs are stored in

   the LANG_SPECIFIC structures, which may itself need allocating first.  */

/* The following three macros must be overridden (in objcp/objcp-decl.h)

   for Objective-C++.  */

#define TYPE_OBJC_INFO(TYPE) TYPE_LANG_SPECIFIC (TYPE)->objc_info

#define SIZEOF_OBJC_TYPE_LANG_SPECIFIC sizeof (struct lang_type)

#define ALLOC_OBJC_TYPE_LANG_SPECIFIC(NODE)                             \

  do {                                                                  \

    TYPE_LANG_SPECIFIC (NODE) = GGC_CNEW (struct lang_type);            \

  } while (0)

#define TYPE_HAS_OBJC_INFO(TYPE)                                \

        (TYPE_LANG_SPECIFIC (TYPE) && TYPE_OBJC_INFO (TYPE))

#define TYPE_OBJC_INTERFACE(TYPE) TREE_VEC_ELT (TYPE_OBJC_INFO (TYPE), 0)

#define TYPE_OBJC_PROTOCOL_LIST(TYPE) TREE_VEC_ELT (TYPE_OBJC_INFO (TYPE), 1)

#define INIT_TYPE_OBJC_INFO(TYPE)                               \

        do                                                      \

          {                                                     \

            if (!TYPE_LANG_SPECIFIC (TYPE))                     \

              ALLOC_OBJC_TYPE_LANG_SPECIFIC(TYPE);              \

            if (!TYPE_OBJC_INFO (TYPE))                         \

              TYPE_OBJC_INFO (TYPE)                             \

                = make_tree_vec (OBJC_INFO_SLOT_ELTS);          \

          }                                                     \

        while (0)

#define DUP_TYPE_OBJC_INFO(DST, SRC)                            \

        do                                                      \

          {                                                     \

            ALLOC_OBJC_TYPE_LANG_SPECIFIC(DST);                 \

            if (TYPE_LANG_SPECIFIC (SRC))                       \

              memcpy (TYPE_LANG_SPECIFIC (DST),                 \

                      TYPE_LANG_SPECIFIC (SRC),                 \

                      SIZEOF_OBJC_TYPE_LANG_SPECIFIC);          \

            TYPE_OBJC_INFO (DST)                                \

              = make_tree_vec (OBJC_INFO_SLOT_ELTS);            \

          }                                                     \

        while (0)

#define TYPED_OBJECT(TYPE)                                      \

        (TREE_CODE (TYPE) == RECORD_TYPE                        \

         && TYPE_HAS_OBJC_INFO (TYPE)                           \

         && TYPE_OBJC_INTERFACE (TYPE))

#define OBJC_TYPE_NAME(TYPE) TYPE_NAME(TYPE)

#define OBJC_SET_TYPE_NAME(TYPE, NAME) (TYPE_NAME (TYPE) = NAME)

/* Hash tables to manage the global pool of method prototypes.  */

typedef struct hashed_entry     *hash;

typedef struct hashed_attribute *attr;

struct GTY(()) hashed_attribute {

  attr next;

  tree value;

};

struct GTY(()) hashed_entry {

  attr list;

  hash next;

  tree key;

};

extern GTY ((length ("SIZEHASHTABLE"))) hash *nst_method_hash_list;

extern GTY ((length ("SIZEHASHTABLE"))) hash *cls_method_hash_list;

#define SIZEHASHTABLE           257

/* Objective-C/Objective-C++ @implementation list.  */

struct GTY(()) imp_entry {

  struct imp_entry *next;

  tree imp_context;

  tree imp_template;

  tree class_decl;              /* _OBJC_CLASS_<my_name>; */

  tree meta_decl;               /* _OBJC_METACLASS_<my_name>; */

  BOOL_BITFIELD has_cxx_cdtors : 1;

};

extern GTY(()) struct imp_entry *imp_list;

extern GTY(()) int imp_count;   /* `@implementation' */

extern GTY(()) int cat_count;   /* `@category' */

extern GTY(()) enum tree_code objc_inherit_code;

extern GTY(()) int objc_public_flag;

/* Objective-C/Objective-C++ global tree enumeration.  */

enum objc_tree_index

{

    OCTI_STATIC_NST,

    OCTI_STATIC_NST_DECL,

    OCTI_SELF_ID,

    OCTI_UCMD_ID,

    OCTI_SELF_DECL,

    OCTI_UMSG_DECL,

    OCTI_UMSG_FAST_DECL,

    OCTI_UMSG_SUPER_DECL,

    OCTI_UMSG_STRET_DECL,

    OCTI_UMSG_SUPER_STRET_DECL,

    OCTI_GET_CLASS_DECL,

    OCTI_GET_MCLASS_DECL,

    OCTI_SUPER_TYPE,

    OCTI_SEL_TYPE,

    OCTI_ID_TYPE,

    OCTI_CLS_TYPE,

    OCTI_NST_TYPE,

    OCTI_PROTO_TYPE,

    OCTI_CLS_CHAIN,

    OCTI_ALIAS_CHAIN,

    OCTI_INTF_CHAIN,

    OCTI_PROTO_CHAIN,

    OCTI_IMPL_CHAIN,

    OCTI_CLS_REF_CHAIN,

    OCTI_SEL_REF_CHAIN,

    OCTI_IVAR_CHAIN,

    OCTI_CLS_NAMES_CHAIN,

    OCTI_METH_VAR_NAMES_CHAIN,

    OCTI_METH_VAR_TYPES_CHAIN,

    OCTI_SYMBOLS_DECL,

    OCTI_NST_VAR_DECL,

    OCTI_CLS_VAR_DECL,

    OCTI_NST_METH_DECL,

    OCTI_CLS_METH_DECL,

    OCTI_CLS_DECL,

    OCTI_MCLS_DECL,

    OCTI_SEL_TABLE_DECL,

    OCTI_MODULES_DECL,

    OCTI_GNU_INIT_DECL,

    OCTI_INTF_CTX,

    OCTI_IMPL_CTX,

    OCTI_METH_CTX,

    OCTI_IVAR_CTX,

    OCTI_IMPL_TEMPL,

    OCTI_CLS_TEMPL,

    OCTI_CAT_TEMPL,

    OCTI_UPRIV_REC,

    OCTI_PROTO_TEMPL,

    OCTI_SEL_TEMPL,

    OCTI_UCLS_SUPER_REF,

    OCTI_UUCLS_SUPER_REF,

    OCTI_METH_TEMPL,

    OCTI_IVAR_TEMPL,

    OCTI_METH_LIST_TEMPL,

    OCTI_METH_PROTO_LIST_TEMPL,

    OCTI_IVAR_LIST_TEMPL,

    OCTI_SYMTAB_TEMPL,

    OCTI_MODULE_TEMPL,

    OCTI_SUPER_TEMPL,

    OCTI_OBJ_REF,

    OCTI_CLS_REF,

    OCTI_METH_PROTO_TEMPL,

    OCTI_FUNCTION1_TEMPL,

    OCTI_FUNCTION2_TEMPL,

    OCTI_OBJ_ID,

    OCTI_CLS_ID,

    OCTI_ID_NAME,

    OCTI_CLASS_NAME,

    OCTI_CNST_STR_ID,

    OCTI_CNST_STR_TYPE,

    OCTI_CNST_STR_GLOB_ID,

    OCTI_STRING_CLASS_DECL,

    OCTI_INTERNAL_CNST_STR_TYPE,

    OCTI_SUPER_DECL,

    OCTI_UMSG_NONNIL_DECL,

    OCTI_UMSG_NONNIL_STRET_DECL,

    OCTI_STORAGE_CLS,

    OCTI_EXCEPTION_EXTRACT_DECL,

    OCTI_EXCEPTION_TRY_ENTER_DECL,

    OCTI_EXCEPTION_TRY_EXIT_DECL,

    OCTI_EXCEPTION_MATCH_DECL,

    OCTI_EXCEPTION_THROW_DECL,

    OCTI_SYNC_ENTER_DECL,

    OCTI_SYNC_EXIT_DECL,

    OCTI_SETJMP_DECL,

    OCTI_EXCDATA_TEMPL,

    OCTI_STACK_EXCEPTION_DATA_DECL,

    OCTI_LOCAL_EXCEPTION_DECL,

    OCTI_RETHROW_EXCEPTION_DECL,

    OCTI_EVAL_ONCE_DECL,

    OCTI_CATCH_TYPE,

    OCTI_EXECCLASS_DECL,

    OCTI_ASSIGN_IVAR_DECL,

    OCTI_ASSIGN_IVAR_FAST_DECL,

    OCTI_ASSIGN_GLOBAL_DECL,

    OCTI_ASSIGN_STRONGCAST_DECL,

    OCTI_MAX

};

extern GTY(()) tree objc_global_trees[OCTI_MAX];

/* List of classes with list of their static instances.  */

#define objc_static_instances   objc_global_trees[OCTI_STATIC_NST]

/* The declaration of the array administrating the static instances.  */

#define static_instances_decl   objc_global_trees[OCTI_STATIC_NST_DECL]

/* Some commonly used instances of "identifier_node".  */

#define self_id                 objc_global_trees[OCTI_SELF_ID]

#define ucmd_id                 objc_global_trees[OCTI_UCMD_ID]

#define self_decl               objc_global_trees[OCTI_SELF_DECL]

#define umsg_decl               objc_global_trees[OCTI_UMSG_DECL]

#define umsg_fast_decl          objc_global_trees[OCTI_UMSG_FAST_DECL]

#define umsg_super_decl         objc_global_trees[OCTI_UMSG_SUPER_DECL]

#define umsg_stret_decl         objc_global_trees[OCTI_UMSG_STRET_DECL]

#define umsg_super_stret_decl   objc_global_trees[OCTI_UMSG_SUPER_STRET_DECL]

#define objc_get_class_decl     objc_global_trees[OCTI_GET_CLASS_DECL]

#define objc_get_meta_class_decl                        \

                                objc_global_trees[OCTI_GET_MCLASS_DECL]

#define objc_super_type         objc_global_trees[OCTI_SUPER_TYPE]

#define objc_selector_type              objc_global_trees[OCTI_SEL_TYPE]

#define objc_object_type        objc_global_trees[OCTI_ID_TYPE]

#define objc_class_type         objc_global_trees[OCTI_CLS_TYPE]

#define objc_instance_type      objc_global_trees[OCTI_NST_TYPE]

#define objc_protocol_type      objc_global_trees[OCTI_PROTO_TYPE]

/* Type checking macros.  */

#define IS_ID(TYPE)                                                     \

        (TREE_CODE (TYPE) == POINTER_TYPE                               \

         && (TYPE_MAIN_VARIANT (TREE_TYPE (TYPE))                       \

             == TREE_TYPE (objc_object_type)))

#define IS_CLASS(TYPE)                                                  \

        (TREE_CODE (TYPE) == POINTER_TYPE                               \

         && (TYPE_MAIN_VARIANT (TREE_TYPE (TYPE))                       \

             == TREE_TYPE (objc_class_type)))

#define IS_PROTOCOL_QUALIFIED_UNTYPED(TYPE)                             \

        ((IS_ID (TYPE) || IS_CLASS (TYPE))                              \

         && TYPE_HAS_OBJC_INFO (TREE_TYPE (TYPE))                       \

         && TYPE_OBJC_PROTOCOL_LIST (TREE_TYPE (TYPE)))

#define IS_SUPER(TYPE)                                                  \

        (TREE_CODE (TYPE) == POINTER_TYPE                               \

         && TREE_TYPE (TYPE) == objc_super_template)

#define class_chain             objc_global_trees[OCTI_CLS_CHAIN]

#define alias_chain             objc_global_trees[OCTI_ALIAS_CHAIN]

#define interface_chain         objc_global_trees[OCTI_INTF_CHAIN]

#define protocol_chain          objc_global_trees[OCTI_PROTO_CHAIN]

#define implemented_classes     objc_global_trees[OCTI_IMPL_CHAIN]

/* Chains to manage selectors that are referenced and defined in the

   module.  */

#define cls_ref_chain           objc_global_trees[OCTI_CLS_REF_CHAIN]   /* Classes referenced.  */

#define sel_ref_chain           objc_global_trees[OCTI_SEL_REF_CHAIN]   /* Selectors referenced.  */

#define objc_ivar_chain         objc_global_trees[OCTI_IVAR_CHAIN]

/* Chains to manage uniquing of strings.  */

#define class_names_chain       objc_global_trees[OCTI_CLS_NAMES_CHAIN]

#define meth_var_names_chain    objc_global_trees[OCTI_METH_VAR_NAMES_CHAIN]

#define meth_var_types_chain    objc_global_trees[OCTI_METH_VAR_TYPES_CHAIN]

/* Backend data declarations.  */

#define UOBJC_SYMBOLS_decl              objc_global_trees[OCTI_SYMBOLS_DECL]

#define UOBJC_INSTANCE_VARIABLES_decl   objc_global_trees[OCTI_NST_VAR_DECL]

#define UOBJC_CLASS_VARIABLES_decl      objc_global_trees[OCTI_CLS_VAR_DECL]

#define UOBJC_INSTANCE_METHODS_decl     objc_global_trees[OCTI_NST_METH_DECL]

#define UOBJC_CLASS_METHODS_decl        objc_global_trees[OCTI_CLS_METH_DECL]

#define UOBJC_CLASS_decl                objc_global_trees[OCTI_CLS_DECL]

#define UOBJC_METACLASS_decl            objc_global_trees[OCTI_MCLS_DECL]

#define UOBJC_SELECTOR_TABLE_decl       objc_global_trees[OCTI_SEL_TABLE_DECL]

#define UOBJC_MODULES_decl              objc_global_trees[OCTI_MODULES_DECL]

#define GNU_INIT_decl                   objc_global_trees[OCTI_GNU_INIT_DECL]

/* The following are used when compiling a class implementation.

   implementation_template will normally be an interface, however if

   none exists this will be equal to objc_implementation_context...it is

   set in start_class.  */

#define objc_interface_context          objc_global_trees[OCTI_INTF_CTX]

#define objc_implementation_context     objc_global_trees[OCTI_IMPL_CTX]

#define objc_method_context             objc_global_trees[OCTI_METH_CTX]

#define objc_ivar_context               objc_global_trees[OCTI_IVAR_CTX]

#define implementation_template objc_global_trees[OCTI_IMPL_TEMPL]

#define objc_class_template     objc_global_trees[OCTI_CLS_TEMPL]

#define objc_category_template  objc_global_trees[OCTI_CAT_TEMPL]

#define uprivate_record         objc_global_trees[OCTI_UPRIV_REC]

#define objc_protocol_template  objc_global_trees[OCTI_PROTO_TEMPL]

#define objc_selector_template  objc_global_trees[OCTI_SEL_TEMPL]

#define ucls_super_ref          objc_global_trees[OCTI_UCLS_SUPER_REF]

#define uucls_super_ref         objc_global_trees[OCTI_UUCLS_SUPER_REF]

#define umsg_nonnil_decl        objc_global_trees[OCTI_UMSG_NONNIL_DECL]

#define umsg_nonnil_stret_decl  objc_global_trees[OCTI_UMSG_NONNIL_STRET_DECL]

#define objc_storage_class      objc_global_trees[OCTI_STORAGE_CLS]

#define objc_exception_extract_decl             \

                                objc_global_trees[OCTI_EXCEPTION_EXTRACT_DECL]

#define objc_exception_try_enter_decl           \

                                objc_global_trees[OCTI_EXCEPTION_TRY_ENTER_DECL]

#define objc_exception_try_exit_decl            \

                                objc_global_trees[OCTI_EXCEPTION_TRY_EXIT_DECL]

#define objc_exception_match_decl               \

                                objc_global_trees[OCTI_EXCEPTION_MATCH_DECL]

#define objc_exception_throw_decl               \

                                objc_global_trees[OCTI_EXCEPTION_THROW_DECL]

#define objc_sync_enter_decl    objc_global_trees[OCTI_SYNC_ENTER_DECL]

#define objc_sync_exit_decl     objc_global_trees[OCTI_SYNC_EXIT_DECL]

#define objc_exception_data_template            \

                                objc_global_trees[OCTI_EXCDATA_TEMPL]

#define objc_setjmp_decl        objc_global_trees[OCTI_SETJMP_DECL]

#define objc_stack_exception_data               \

                                objc_global_trees[OCTI_STACK_EXCEPTION_DATA_DECL]

#define objc_caught_exception   objc_global_trees[OCTI_LOCAL_EXCEPTION_DECL]    

#define objc_rethrow_exception  objc_global_trees[OCTI_RETHROW_EXCEPTION_DECL]  

#define objc_eval_once          objc_global_trees[OCTI_EVAL_ONCE_DECL]  

#define objc_catch_type         objc_global_trees[OCTI_CATCH_TYPE]

#define execclass_decl          objc_global_trees[OCTI_EXECCLASS_DECL]

#define objc_assign_ivar_decl   objc_global_trees[OCTI_ASSIGN_IVAR_DECL]

#define objc_assign_ivar_fast_decl              \

                                objc_global_trees[OCTI_ASSIGN_IVAR_FAST_DECL]

#define objc_assign_global_decl objc_global_trees[OCTI_ASSIGN_GLOBAL_DECL]

#define objc_assign_strong_cast_decl            \

                                objc_global_trees[OCTI_ASSIGN_STRONGCAST_DECL]

#define objc_method_template    objc_global_trees[OCTI_METH_TEMPL]

#define objc_ivar_template      objc_global_trees[OCTI_IVAR_TEMPL]

#define objc_method_list_ptr    objc_global_trees[OCTI_METH_LIST_TEMPL]

#define objc_method_proto_list_ptr              \

                                objc_global_trees[OCTI_METH_PROTO_LIST_TEMPL]

#define objc_ivar_list_ptr      objc_global_trees[OCTI_IVAR_LIST_TEMPL]

#define objc_symtab_template    objc_global_trees[OCTI_SYMTAB_TEMPL]

#define objc_module_template    objc_global_trees[OCTI_MODULE_TEMPL]

#define objc_super_template     objc_global_trees[OCTI_SUPER_TEMPL]

#define objc_object_reference   objc_global_trees[OCTI_OBJ_REF]

#define objc_class_reference    objc_global_trees[OCTI_CLS_REF]

#define objc_method_prototype_template          \

                                objc_global_trees[OCTI_METH_PROTO_TEMPL]

#define function1_template      objc_global_trees[OCTI_FUNCTION1_TEMPL]

#define function2_template      objc_global_trees[OCTI_FUNCTION2_TEMPL]

#define objc_object_id          objc_global_trees[OCTI_OBJ_ID]

#define objc_class_id           objc_global_trees[OCTI_CLS_ID]

#define objc_object_name                objc_global_trees[OCTI_ID_NAME]

#define objc_class_name         objc_global_trees[OCTI_CLASS_NAME]

#define constant_string_id      objc_global_trees[OCTI_CNST_STR_ID]

#define constant_string_type    objc_global_trees[OCTI_CNST_STR_TYPE]

#define constant_string_global_id               \

                                objc_global_trees[OCTI_CNST_STR_GLOB_ID]

#define string_class_decl       objc_global_trees[OCTI_STRING_CLASS_DECL]

#define internal_const_str_type objc_global_trees[OCTI_INTERNAL_CNST_STR_TYPE]

#define UOBJC_SUPER_decl        objc_global_trees[OCTI_SUPER_DECL]

#endif /* GCC_OBJC_ACT_H */