Copyright ©1995 by NeXT Computer, Inc.  All Rights Reserved.

Types and Constants

Defined Types

Cache typedef struct objc_cache *Cache; Category typedef struct objc_category *Category; Ivar typedef struct objc_ivar *Ivar; marg_list typedef void *marg_list; Method typedef struct objc_method *Method; Module typedef struct objc_module *Module;

Symbolic Constants

	Type Constants	Meaning	Defined As
	_C_ID	id	`@'
	_C_CLASS	Class	`#'
	_C_SEL	SEL	`:'
	_C_VOID	void	`v'
	_C_CHR	char	`c'
	_C_UCHR	unsigned char	`C'
	_C_SHT	short	`s'
	_C_USHT	unsigned short	`S'
	_C_INT	int	`i'
	_C_UINT	unsigned int	`I'
	_C_LNG	long	`l'
	_C_ULNG	unsigned long	`L'
	_C_FLT	float	`f'
	_C_DBL	double	`d'
	_C_UNDEF	an undefined type	`?'
	_C_PTR	a pointer	`^'
	_C_CHARPTR	char *	`*'
	_C_BFLD	a bitfield	`b'
	_C_ARY_B	begin an array	`['
	_C_ARY_E	end an array	`]'
	_C_UNION_B	begin a union	`('
	_C_UNION_E	end a union	`)'
	_C_STRUCT_B	begin a structure	`{'
	_C_STRUCT_E	end a structure	`}'

Structures

objc_cache struct objc_cache { unsigned int mask; unsigned int occupied; Method buckets[1]; }; objc_category struct objc_category { char *category_name; char *class_name; struct objc_method_list *instance_methods; struct objc_method_list *class_methods; struct objc_protocol_list *protocols; }; objc_class struct objc_class { struct objc_class *isa; struct objc_class *super_class; const char *name; long version; long info; long instance_size; struct objc_ivar_list *ivars; struct objc_method_list *methods; struct objc_cache *cache; struct objc_protocol_list *protocols; }; objc_ivar struct objc_ivar { char *ivar_name; char *ivar_type; int ivar_offset; }; objc_ivar_list struct objc_ivar_list { int ivar_count; struct objc_ivar ivar_list[1]; }; objc_method struct objc_method { SEL method_name; char *method_types; IMP method_imp; }; objc_method_description struct objc_method_description { SEL name; char *types; }; objc_method_description_list struct objc_method_description_list { int count; struct objc_method_description list[1]; }; objc_method_list struct objc_method_list { struct objc_method_list *method_next; int method_count; struct objc_method method_list[1]; }; objc_module struct objc_module { unsigned long version; unsigned long size; const char *name; Symtab symtab; }; objc_protocol_list struct objc_protocol_list { struct objc_protocol_list *next int count; Protocol *list[1]; }; objc_super struct objc_super { id receiver; Class class; };

Global Variables

Function Pointers

	id	(*_alloc)	(Class aClass, unsigned int indexedIvarBytes)
	id	(*_dealloc)	(Object *anObject)
	id	(*_realloc)	(Object *anObject, unsigned int numBytes)
	id	(*_copy)	(Object *anObject, unsigned int indexedIvarBytes)
	id	(*_zoneAlloc)	(Class aClass, unsigned int indexedIvarBytes, NXZone *zone)
	id	(*_zoneRealloc)	(Object *anObject, unsigned int numBytes, NXZone *zone)
	id	(*_zoneCopy)	(Object *anObject, unsigned int indexedIvarBytes, NXZone *zone)
	id	(*_error)	(Object *anObject, char *format, va_list ap)