/* Declarations for objc-act.c.
- Copyright (C) 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009,
+ 2010, 2011 Free Software Foundation, Inc.
This file is part of GCC.
const char *objc_printable_name (tree, int);
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. */
#define METHOD_TYPE_ATTRIBUTES(DECL) ((DECL)->decl_common.abstract_origin)
#define METHOD_PROPERTY_CONTEXT(DECL) ((DECL)->decl_common.size_unit)
-#define PROPERTY_NAME(DECL) ((DECL)->decl_minimal.name)
+
+/* PROPERTY_DECL. A PROPERTY_DECL repesents a @property declaration
+ (when attached to the list of properties of an interface) or a
+ @synthesize or @dynamic declaration (when attached to the list of
+ properties of an implementation). */
+
+/* TREE_TYPE is the type (int, float, etc) of the property. */
+
+/* DECL_ARTIFICIAL is set to 1 if the PROPERTY_DECL is an artificial
+ property declaration created when the dot-syntax object.component
+ is used with no actual @property matching the component, but a
+ valid getter/setter. */
+
+/* PROPERTY_NAME is the name of the property. */
+#define PROPERTY_NAME(DECL) DECL_NAME(DECL)
+
+/* PROPERTY_GETTER_NAME is the identifier of the getter method. */
#define PROPERTY_GETTER_NAME(DECL) ((DECL)->decl_non_common.arguments)
+
+/* PROPERTY_SETTER_NAME is the identifier of the setter method. */
#define PROPERTY_SETTER_NAME(DECL) ((DECL)->decl_non_common.result)
+
+/* PROPERTY_READONLY can be 0 or 1. */
+#define PROPERTY_READONLY(DECL) DECL_LANG_FLAG_0 (DECL)
+
+/* PROPERTY_NONATOMIC can be 0 or 1. */
+#define PROPERTY_NONATOMIC(DECL) DECL_LANG_FLAG_1 (DECL)
+
+typedef enum objc_property_assign_semantics {
+ OBJC_PROPERTY_ASSIGN = 1,
+ OBJC_PROPERTY_RETAIN = 2,
+ OBJC_PROPERTY_COPY = 3
+} objc_property_assign_semantics;
+
+/* PROPERTY_ASSIGN_SEMANTICS can be OBJC_PROPERTY_ASSIGN,
+ OBJC_PROPERTY_RETAIN or OBJC_PROPERTY_COPY. We need an integer to
+ store it, so we hijack the alignment, that properties don't
+ have. */
+#define PROPERTY_ASSIGN_SEMANTICS(DECL) ((DECL)->decl_common.align)
+
+/* PROPERTY_IVAR_NAME is the identifier of the instance variable.
+ This is set only if the PROPERTY_DECL represents a @synthesize;
+ otherwise, it is set to TREE_NULL. */
#define PROPERTY_IVAR_NAME(DECL) ((DECL)->decl_common.initial)
-#define PROPERTY_READONLY(DECL) ((DECL)->decl_minimal.context)
-#define PROPERTY_COPIES(DECL) ((DECL)->decl_common.size_unit)
+
+/* PROPERTY_DYNAMIC can be 0 or 1. This is 1 if the PROPERTY_DECL
+ represents a @dynamic; otherwise, it is set to 0. */
+#define PROPERTY_DYNAMIC(DECL) DECL_LANG_FLAG_2 (DECL)
+
+/* PROPERTY_HAS_NO_GETTER can be 0 or 1. Normally it is 0, but if
+ this is an artificial PROPERTY_DECL that we generate even without a
+ getter, it is set to 1. */
+#define PROPERTY_HAS_NO_GETTER(DECL) DECL_LANG_FLAG_3 (DECL)
+
+/* PROPERTY_HAS_NO_SETTER can be 0 or 1. Normally it is 0, but if
+ this is an artificial PROPERTY_DECL that we generate even without a
+ setter, it is set to 1. */
+#define PROPERTY_HAS_NO_SETTER(DECL) DECL_LANG_FLAG_4 (DECL)
+
+/* PROPERTY_OPTIONAL can be 0 or 1. Normally it is 0, but if this is
+ a property declared as @optional in a @protocol, then it is set to
+ 1. */
+#define PROPERTY_OPTIONAL(DECL) DECL_LANG_FLAG_5 (DECL)
+
+/* PROPERTY_REF. A PROPERTY_REF represents an 'object.property'
+ expression. It is normally used for property access, but when
+ the Objective-C 2.0 "dot-syntax" (object.component) is used
+ with no matching property, a PROPERTY_REF is still created to
+ represent it, with an artificial PROPERTY_DECL. */
+
+/* PROPERTY_REF_OBJECT is the object whose property we are
+ accessing. */
+#define PROPERTY_REF_OBJECT(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 0)
+
+/* PROPERTY_REF_PROPERTY_DECL is the PROPERTY_DECL for the property
+ used in the expression. From it, you can get the property type,
+ and the getter/setter names. This PROPERTY_DECL could be artificial
+ if we are processing an 'object.component' syntax with no matching
+ declared property. */
+#define PROPERTY_REF_PROPERTY_DECL(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 1)
+
+/* PROPERTY_REF_GETTER_CALL is the getter call expression, ready to
+ use at gimplify time if needed. Generating the getter call
+ requires modifying the selector table, and, in the case of
+ self/super, requires the context to be generated correctly. The
+ gimplify stage is too late to do these things, so we generate the
+ getter call earlier instead, and keep it here in case we need to
+ use it. */
+#define PROPERTY_REF_GETTER_CALL(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 2)
+
+/* PROPERTY_REF_DEPRECATED_GETTER is normally set to NULL_TREE. If
+ the property getter is deprecated, it is set to the method
+ prototype for it, which is used to generate the deprecation warning
+ when the getter is used. */
+#define PROPERTY_REF_DEPRECATED_GETTER(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 3)
/* CLASS_INTERFACE_TYPE, CLASS_IMPLEMENTATION_TYPE,
CATEGORY_INTERFACE_TYPE, CATEGORY_IMPLEMENTATION_TYPE,
PROTOCOL_INTERFACE_TYPE */
+/* CLASS_NAME is the name of the class. */
#define CLASS_NAME(CLASS) ((CLASS)->type.name)
+/* CLASS_SUPER_NAME is the name of the superclass, or, in the case of
+ categories, it is the name of the category itself. */
#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_PROTOCOL_LIST(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 4)
#define TOTAL_CLASS_RAW_IVARS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 5)
+#define CLASS_HAS_EXCEPTION_ATTR(CLASS) ((CLASS)->type.lang_flag_0)
+
#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)
/* For CLASS_IMPLEMENTATION_TYPE or CATEGORY_IMPLEMENTATION_TYPE. */
#define IMPL_PROPERTY_DECL(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 6)
+/* TREE_DEPRECATED is used for a CLASS_INTERFACE_TYPE or PROTOCOL_INTERFACE_TYPE. */
+
+/* TYPE_ATTRIBUTES is used for a CLASS_INTERFACE_TYPE or PROTOCOL_INTERFACE_TYPE. */
+
/* ObjC-specific information pertaining to RECORD_TYPEs are stored in
the LANG_SPECIFIC structures, which may itself need allocating first. */
= make_tree_vec (OBJC_INFO_SLOT_ELTS); \
} \
while (0)
+
#define DUP_TYPE_OBJC_INFO(DST, SRC) \
do \
{ \
attr next;
tree value;
};
+
struct GTY(()) hashed_entry {
attr list;
hash next;
tree key;
};
+#define SIZEHASHTABLE 257
+
extern GTY ((length ("SIZEHASHTABLE"))) hash *nst_method_hash_list;
extern GTY ((length ("SIZEHASHTABLE"))) hash *cls_method_hash_list;
-#define SIZEHASHTABLE 257
+extern GTY ((length ("SIZEHASHTABLE"))) hash *cls_name_hash_list;
+extern GTY ((length ("SIZEHASHTABLE"))) hash *als_name_hash_list;
+
+/* An array of all the local variables in the current function that
+ need to be marked as volatile. */
+extern GTY(()) VEC(tree,gc) *local_variables_to_volatilize;
/* Objective-C/Objective-C++ @implementation list. */
struct imp_entry *next;
tree imp_context;
tree imp_template;
- tree class_decl; /* _OBJC_CLASS_<my_name>; */
- tree meta_decl; /* _OBJC_METACLASS_<my_name>; */
+ tree class_decl; /* _OBJC[_v2]_CLASS/CATEGORY_<my_name>; */
+ tree meta_decl; /* _OBJC[_v2]_METACLASS_<my_name>; */
BOOL_BITFIELD has_cxx_cdtors : 1;
};
extern GTY(()) int imp_count; /* `@implementation' */
extern GTY(()) int cat_count; /* `@category' */
-extern GTY(()) enum tree_code objc_inherit_code;
extern GTY(()) objc_ivar_visibility_kind objc_ivar_visibility;
/* Objective-C/Objective-C++ global tree enumeration. */
OCTI_NST_TYPE,
OCTI_PROTO_TYPE,
- OCTI_CLS_CHAIN,
- OCTI_ALIAS_CHAIN,
OCTI_INTF_CHAIN,
OCTI_PROTO_CHAIN,
OCTI_IMPL_CHAIN,
OCTI_STRING_CLASS_DECL,
OCTI_INTERNAL_CNST_STR_TYPE,
OCTI_SUPER_DECL,
+ OCTI_SUPER_SUPERFIELD_ID,
OCTI_UMSG_NONNIL_DECL,
OCTI_UMSG_NONNIL_STRET_DECL,
OCTI_STORAGE_CLS,
OCTI_FAST_ENUM_STATE_TEMP,
OCTI_ENUM_MUTATION_DECL,
+ OCTI_GET_PROPERTY_DECL,
+ OCTI_SET_PROPERTY_DECL,
+ OCTI_COPY_STRUCT_DECL,
+ OCTI_GET_PROPERTY_STRUCT_DECL,
+ OCTI_SET_PROPERTY_STRUCT_DECL,
+
+ /* "V1" stuff. */
+ OCTI_V1_PROP_LIST_TEMPL,
+ OCTI_V1_PROP_NAME_ATTR_CHAIN,
+
OCTI_MAX
};
(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]
#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]
+
+/* Constant string classes. */
#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]
+#define super_superclassfield_id \
+ objc_global_trees[OCTI_SUPER_SUPERFIELD_ID]
+
#define objc_fast_enumeration_state_template \
objc_global_trees[OCTI_FAST_ENUM_STATE_TEMP]
#define objc_enumeration_mutation_decl \
objc_global_trees[OCTI_ENUM_MUTATION_DECL]
+/* Declarations of functions used when synthesizing property
+ accessors. */
+#define objc_getProperty_decl objc_global_trees[OCTI_GET_PROPERTY_DECL]
+#define objc_setProperty_decl objc_global_trees[OCTI_SET_PROPERTY_DECL]
+#define objc_copyStruct_decl objc_global_trees[OCTI_COPY_STRUCT_DECL]
+#define objc_getPropertyStruct_decl \
+ objc_global_trees[OCTI_GET_PROPERTY_STRUCT_DECL]
+#define objc_setPropertyStruct_decl \
+ objc_global_trees[OCTI_SET_PROPERTY_STRUCT_DECL]
+
+/* V1 stuff. */
+#define objc_prop_list_ptr objc_global_trees[OCTI_V1_PROP_LIST_TEMPL]
+#define prop_names_attr_chain objc_global_trees[OCTI_V1_PROP_NAME_ATTR_CHAIN]
+
+/* Reserved tag definitions. */
+
+#define OBJECT_TYPEDEF_NAME "id"
+#define CLASS_TYPEDEF_NAME "Class"
+
+#define TAG_OBJECT "objc_object"
+#define TAG_CLASS "objc_class"
+#define TAG_SUPER "objc_super"
+#define TAG_SELECTOR "objc_selector"
+
+#define UTAG_CLASS "_objc_class"
+#define UTAG_IVAR "_objc_ivar"
+#define UTAG_IVAR_LIST "_objc_ivar_list"
+#define UTAG_METHOD "_objc_method"
+#define UTAG_METHOD_LIST "_objc_method_list"
+#define UTAG_CATEGORY "_objc_category"
+#define UTAG_MODULE "_objc_module"
+#define UTAG_SYMTAB "_objc_symtab"
+#define UTAG_SUPER "_objc_super"
+#define UTAG_SELECTOR "_objc_selector"
+
+#define UTAG_PROTOCOL "_objc_protocol"
+#define UTAG_METHOD_PROTOTYPE "_objc_method_prototype"
+#define UTAG_METHOD_PROTOTYPE_LIST "_objc__method_prototype_list"
+
+#define PROTOCOL_OBJECT_CLASS_NAME "Protocol"
+
+#define TAG_EXCEPTIONTHROW "objc_exception_throw"
+#define TAG_SYNCENTER "objc_sync_enter"
+#define TAG_SYNCEXIT "objc_sync_exit"
+
+/* Really should be NeXT private. */
+#define UTAG_EXCDATA "_objc_exception_data"
+
+#define TAG_CXX_CONSTRUCT ".cxx_construct"
+#define TAG_CXX_DESTRUCT ".cxx_destruct"
+
+#define TAG_ENUMERATION_MUTATION "objc_enumerationMutation"
+#define TAG_FAST_ENUMERATION_STATE "__objcFastEnumerationState"
+
+typedef enum string_section
+{
+ class_names, /* class, category, protocol, module names */
+ meth_var_names, /* method and variable names */
+ meth_var_types, /* method and variable type descriptors */
+ prop_names_attr /* property names and their attributes. */
+} string_section;
+
+#define METHOD_DEF 0
+#define METHOD_REF 1
+
+/* (Decide if these can ever be validly changed.) */
+#define OBJC_ENCODE_INLINE_DEFS 0
+#define OBJC_ENCODE_DONT_INLINE_DEFS 1
+
+#define BUFSIZE 1024
+
+#define CLS_FACTORY 0x0001L
+#define CLS_META 0x0002L
+
+/* Runtime metadata flags - ??? apparently unused. */
+
+#define OBJC_MODIFIER_STATIC 0x00000001
+#define OBJC_MODIFIER_FINAL 0x00000002
+#define OBJC_MODIFIER_PUBLIC 0x00000004
+#define OBJC_MODIFIER_PRIVATE 0x00000008
+#define OBJC_MODIFIER_PROTECTED 0x00000010
+#define OBJC_MODIFIER_NATIVE 0x00000020
+#define OBJC_MODIFIER_SYNCHRONIZED 0x00000040
+#define OBJC_MODIFIER_ABSTRACT 0x00000080
+#define OBJC_MODIFIER_VOLATILE 0x00000100
+#define OBJC_MODIFIER_TRANSIENT 0x00000200
+#define OBJC_MODIFIER_NONE_SPECIFIED 0x80000000
+
+#define OBJC_VOID_AT_END void_list_node
+
+/* Exception handling constructs. We begin by having the parser do most
+ of the work and passing us blocks.
+ This allows us to handle different exceptions implementations. */
+
+/* Stack of open try blocks. */
+
+struct objc_try_context
+{
+ struct objc_try_context *outer;
+
+ /* Statements (or statement lists) as processed by the parser. */
+ tree try_body;
+ tree finally_body;
+
+ /* Some file position locations. */
+ location_t try_locus;
+ location_t end_try_locus;
+ location_t end_catch_locus;
+ location_t finally_locus;
+ location_t end_finally_locus;
+
+ /* A STATEMENT_LIST of CATCH_EXPRs, appropriate for sticking into op1
+ of a TRY_CATCH_EXPR. Even when doing Darwin setjmp. */
+ tree catch_list;
+
+ /* The CATCH_EXPR of an open @catch clause. */
+ tree current_catch;
+
+ /* The VAR_DECL holding __builtin_eh_pointer (or equivalent). */
+ tree caught_decl;
+ tree stack_decl;
+ tree rethrow_decl;
+};
+
+/* A small number of routines used by the FE parser and the runtime code
+ generators. Put here as inlines for efficiency in non-lto builds rather
+ than making them externs. */
+
+extern tree objc_create_temporary_var (tree, const char *);
+
+#define objc_is_object_id(TYPE) (OBJC_TYPE_NAME (TYPE) == objc_object_id)
+#define objc_is_class_id(TYPE) (OBJC_TYPE_NAME (TYPE) == objc_class_id)
+
+/* Retrieve category interface CAT_NAME (if any) associated with CLASS. */
+static inline tree
+lookup_category (tree klass, tree cat_name)
+{
+ tree category = CLASS_CATEGORY_LIST (klass);
+
+ while (category && CLASS_SUPER_NAME (category) != cat_name)
+ category = CLASS_CATEGORY_LIST (category);
+ return category;
+}
+
+/* Count only the fields occurring in T. */
+static inline int
+ivar_list_length (tree t)
+{
+ int count = 0;
+
+ for (; t; t = DECL_CHAIN (t))
+ if (TREE_CODE (t) == FIELD_DECL)
+ ++count;
+
+ return count;
+}
+
+static inline tree
+is_ivar (tree decl_chain, tree ident)
+{
+ for ( ; decl_chain; decl_chain = DECL_CHAIN (decl_chain))
+ if (DECL_NAME (decl_chain) == ident)
+ return decl_chain;
+ return NULL_TREE;
+}
+
#endif /* GCC_OBJC_ACT_H */
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