Function

objc_registerProtocol(_:)

Registers a newly created protocol with the Objective-C runtime.

Declaration

func objc_registerProtocol(_ proto: Protocol)

Parameters

proto

The protocol you want to register with the Objective-C runtime.

Discussion

When you create a new protocol using the objc_allocateProtocol(_:), you then register it with the Objective-C runtime by calling this function. After a protocol is successfully registered, it is immutable and ready to use.

See Also

Working with Protocols

func protocol_addProtocol(Protocol, Protocol)

Adds a registered protocol to another protocol that is under construction.

func protocol_isEqual(Protocol?, Protocol?) -> Bool

Returns a Boolean value that indicates whether two protocols are equal.

func protocol_copyMethodDescriptionList(Protocol, Bool, Bool, UnsafeMutablePointer<UInt32>?) -> UnsafeMutablePointer<objc_method_description>?

Returns an array of method descriptions of methods meeting a given specification for a given protocol.

func protocol_getMethodDescription(Protocol, Selector, Bool, Bool) -> objc_method_description

Returns a method description structure for a specified method of a given protocol.

func protocol_conformsToProtocol(Protocol?, Protocol?) -> Bool

Returns a Boolean value that indicates whether one protocol conforms to another protocol.