An opaque type that represents an instance variable.
SDKs
- iOS 4.0+
- macOS 10.5+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
Framework
- Objective-C Runtime
Declaration
typedef struct objc _ivar *Ivar;
An opaque type that represents an instance variable.
SDKs
Framework
typedef struct objc _ivar *Ivar;
Class
An opaque type that represents an Objective-C class.
Method
An opaque type that represents a method in a class definition.
Category
An opaque type that represents a category.
objc _property _t
An opaque type that represents an Objective-C declared property.
IMP
A pointer to the start of a method implementation.
SEL
Defines an opaque type that represents a method selector.
objc _method _description
Defines an Objective-C method.
objc _cache
Performance optimization for method calls. Contains pointers to recently used methods.
objc _property _attribute _t
Defines a property attribute.