IMP

Declaration

typealias IMP = OpaquePointer

Discussion

This data type is a pointer to the start of the function that implements the method. This function uses standard C calling conventions as implemented for the current CPU architecture. The first argument is a pointer to self (that is, the memory for the particular instance of this class, or, for a class method, a pointer to the metaclass). The second argument is the method selector. The method arguments follow.

See Also

Class-Definition Data Structures

• Method
• Ivar
• Category
• objc_property_t
• objc_method_description
• objc_cache
• objc_property_attribute_t