Defines the core types and functions of the Objective-C runtime. More...
#include <stdbool.h>#include <stddef.h>#include <stdint.h>
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Macros | |
| #define | nil ((id)0) |
| A null object pointer. | |
| #define | Nil ((Class)0) |
| A null class pointer. | |
| #define | YES true |
The Boolean value true. | |
| #define | NO false |
The Boolean value false. | |
| #define | OBJC_ROOT_CLASS |
| A macro to declare a class as a root class. More... | |
| #define | OBJC_UNUSED |
| A macro to declare a method parameter is unused. More... | |
| #define | OBJC_REQUIRES_NIL_TERMINATION |
| A macro to indicate that a method requires a nil-terminated list of arguments. More... | |
Typedefs | |
| typedef struct objc_object * | id |
| A pointer to an instance of a class. | |
| typedef const struct objc_selector * | SEL |
| A pointer to a method selector. | |
| typedef struct objc_class * | Class |
| A pointer to a class definition. | |
| typedef id(* | IMP) (id, SEL,...) |
| A pointer to a method implementation. | |
| typedef struct objc_method * | Method |
| A pointer to a method. | |
| typedef struct objc_protocol | objc_protocol_t |
| An instance of a protocol. | |
| typedef bool | BOOL |
| A Boolean value. | |
Functions | |
| Class | objc_lookupClass (const char *name) |
| Looks up a class by name. More... | |
| const char * | class_getName (Class cls) |
| Returns the name of a class. More... | |
| const char * | object_getClassName (id obj) |
| Returns the name of an object's class. More... | |
| Class | object_getClass (id object) |
| Returns the class of an object. More... | |
| void | object_setClass (id object, Class cls) |
| Sets the class of an object. More... | |
| BOOL | object_respondsToSelector (id object, SEL sel) |
| Checks if an instance's class responds to a selector. More... | |
| Class | object_getSuperclass (id obj) |
| Returns the superclass of an object. More... | |
| Class | class_getSuperclass (Class cls) |
| Returns the superclass of a class. More... | |
| BOOL | object_isKindOfClass (id object, Class cls) |
| Checks if an instance class matches, or subclass of another class. More... | |
| size_t | class_getInstanceSize (Class cls) |
| Returns the size of an instance of a class. More... | |
| BOOL | class_metaclassRespondsToSelector (Class cls, SEL sel) |
| Checks if a class object responds to a selector. More... | |
| BOOL | class_respondsToSelector (Class cls, SEL sel) |
| Checks if an instance of a class responds to a selector. More... | |
| const char * | sel_getName (SEL sel) |
| Returns the name of a selector. More... | |
| const char * | proto_getName (objc_protocol_t *protocol) |
| Returns the name of a protocol. More... | |
| BOOL | proto_conformsTo (objc_protocol_t *protocol, objc_protocol_t *otherProtocol) |
| Checks if a protocol conforms to another protocol. More... | |
| BOOL | class_conformsTo (Class cls, objc_protocol_t *otherProtocol) |
| Checks if a class conforms to a protocol. More... | |
Detailed Description
Defines the core types and functions of the Objective-C runtime.
This file provides the fundamental data structures and functions that constitute the Objective-C runtime. It includes definitions for objects, classes, selectors, and methods, as well as functions for introspection and message dispatch.
Definition in file runtime.h.