oc语言基础整理

objc.h----------------

typedef struct objc_class *Class;

struct objc_object {

Class isa  OBJC_ISA_AVAILABILITY;

};

typedef struct objc_object *id;

#if !OBJC_OLD_DISPATCH_PROTOTYPES

typedef void (*IMP)(void /* id, SEL, ... */ );

#else

typedef id (*IMP)(id, SEL, ...);

#endif

/// Type to represent a boolean value.

#if (TARGET_OS_IPHONE && __LP64__)  ||  TARGET_OS_WATCH

#define OBJC_BOOL_IS_BOOL 1

typedef bool BOOL;

#else

#define OBJC_BOOL_IS_CHAR 1

typedef signed char BOOL;

runtime.h------------------

/// An opaque type that represents a method in a class definition.

typedef struct objc_method *Method;

/// An opaque type that represents an instance variable.

typedef struct objc_ivar *Ivar;

/// An opaque type that represents a category.

typedef struct objc_category *Category;

/// An opaque type that represents an Objective-C declared property.

typedef struct objc_property *objc_property_t;

struct objc_class {

Class isa  OBJC_ISA_AVAILABILITY;

#if !__OBJC2__

Class super_class                                        OBJC2_UNAVAILABLE;

const char *name                                         OBJC2_UNAVAILABLE;

long version                                             OBJC2_UNAVAILABLE;

long info                                                OBJC2_UNAVAILABLE;

long instance_size                                       OBJC2_UNAVAILABLE;

struct objc_ivar_list *ivars                             OBJC2_UNAVAILABLE;

struct objc_method_list **methodLists                    OBJC2_UNAVAILABLE;

struct objc_cache *cache                                 OBJC2_UNAVAILABLE;

struct objc_protocol_list *protocols                     OBJC2_UNAVAILABLE;

#endif

} OBJC2_UNAVAILABLE;

/* Use `Class` instead of `struct objc_class *` */

struct objc_method {

SEL method_name                                          OBJC2_UNAVAILABLE;

char *method_types                                       OBJC2_UNAVAILABLE;

IMP method_imp                                           OBJC2_UNAVAILABLE;

}

struct objc_category {

char *category_name                                      OBJC2_UNAVAILABLE;

char *class_name                                         OBJC2_UNAVAILABLE;

struct objc_method_list *instance_methods                OBJC2_UNAVAILABLE;

struct objc_method_list *class_methods                   OBJC2_UNAVAILABLE;

struct objc_protocol_list *protocols                     OBJC2_UNAVAILABLE;

}                                                            OBJC2_UNAVAILABLE;

struct objc_ivar {

char *ivar_name                                          OBJC2_UNAVAILABLE;

char *ivar_type                                          OBJC2_UNAVAILABLE;

int ivar_offset                                          OBJC2_UNAVAILABLE;

#ifdef __LP64__

int space                                                OBJC2_UNAVAILABLE;

#endif

}

OBJC_EXPORT void (*_error)(id, const char *, va_list)        OBJC2_UNAVAILABLE;

Object.h-----------------

@interface Object

{

Class isa; /* A pointer to the instance's class structure */

}

NSObject.h-----------------

@interface NSObject <NSObject> {

Class isa  OBJC_ISA_AVAILABILITY;

}

objc-sync.h----------------

/**

* Begin synchronizing on 'obj'.

* Allocates recursive pthread_mutex associated with 'obj' if needed.

*

* @param obj The object to begin synchronizing on.

*

* @return OBJC_SYNC_SUCCESS once lock is acquired.

*/

OBJC_EXPORT  int objc_sync_enter(id obj)

__OSX_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

/**

* End synchronizing on 'obj'.

*

* @param obj The objet to end synchronizing on.

*

* @return OBJC_SYNC_SUCCESS or OBJC_SYNC_NOT_OWNING_THREAD_ERROR

*/

OBJC_EXPORT  int objc_sync_exit(id obj)

__OSX_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);

// The wait/notify functions have never worked correctly and no longer exist.

OBJC_EXPORT  int objc_sync_wait(id obj, long long milliSecondsMaxWait)

UNAVAILABLE_ATTRIBUTE;

OBJC_EXPORT  int objc_sync_notify(id obj)

UNAVAILABLE_ATTRIBUTE;

OBJC_EXPORT  int objc_sync_notifyAll(id obj)

UNAVAILABLE_ATTRIBUTE;

集合类--------------

DEFINED AS: A common class

HEADER FILES: objc/List.h

DEPRECATED_ATTRIBUTE

@interface List : Object

{

@public

id *dataPtr  DEPRECATED_ATTRIBUTE; /* data of the List object */

unsigned numElements  DEPRECATED_ATTRIBUTE; /* Actual number of elements */

unsigned maxElements  DEPRECATED_ATTRIBUTE; /* Total allocated elements */

}

- (id)makeObjectsPerform:(SEL)aSelector  DEPRECATED_ATTRIBUTE;

- (id)makeObjectsPerform:(SEL)aSelector with:anObject  DEPRECATED_ATTRIBUTE;

/*************************************************************************

* Hash tables of arbitrary data

*************************************************************************/

/* This module allows hashing of arbitrary data.  Such data must be pointers or integers, and client is responsible for allocating/deallocating this data.  A deallocation call-back is provided.

The objective C class HashTable is preferred when dealing with (key, values) associations because it is easier to use in that situation.

As well-behaved scalable data structures, hash tables double in size when they start becoming full, thus guaranteeing both average constant time access and linear size. */

typedef struct {

uintptr_t (*hash)(const void *info, const void *data);

int (*isEqual)(const void *info, const void *data1, const void *data2);

void (*free)(const void *info, void *data);

int style; /* reserved for future expansion; currently 0 */

} NXHashTablePrototype;

NSObjCRuntime.h----------------

#if __LP64__ || (TARGET_OS_EMBEDDED && !TARGET_OS_IPHONE) || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64

typedef long NSInteger;

typedef unsigned long NSUInteger;

#else

typedef int NSInteger;

typedef unsigned int NSUInteger;

#endif

objc-exception.h---------------

typedef struct {

int version;

void (*throw_exc)(id); // version 0

void (*try_enter)(void *); // version 0

void (*try_exit)(void *); // version 0

id (*extract)(void *); // version 0

int (*match)(Class, id); // version 0

} objc_exception_functions_t;

objc-load.h-----------------

OBJC_EXPORT long objc_loadModules (

char *modlist[],

void *errStream,

void (*class_callback) (Class, Category),

/*headerType*/ struct mach_header **hdr_addr,

char *debug_file

) OBJC2_UNAVAILABLE;

OBJC_EXPORT int objc_loadModule (

char * moduleName,

void (*class_callback) (Class, Category),

int * errorCode

) OBJC2_UNAVAILABLE;

OBJC_EXPORT long objc_unloadModules(

void *errorStream, /* input (optional) */

void (*unloadCallback)(Class, Category) /* input (optional) */

)

message.h---------------

/// Specifies the superclass of an instance.

struct objc_super {

/// Specifies an instance of a class.

__unsafe_unretained id receiver;

/// Specifies the particular superclass of the instance to message.

#if !defined(__cplusplus)  &&  !__OBJC2__

/* For compatibility with old objc-runtime.h header */

__unsafe_unretained Class class;

#else

__unsafe_unretained Class super_class;

#endif

/* super_class is the first class to search */

};

* These functions must be cast to an appropriate function pointer type

* before being called.

*/

#if !OBJC_OLD_DISPATCH_PROTOTYPES

OBJC_EXPORT void objc_msgSend(void /* id self, SEL op, ... */ )

__OSX_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

OBJC_EXPORT void objc_msgSendSuper(void /* struct objc_super *super, SEL op, ... */ )

__OSX_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);

#else