Function

protocol_copyProtocolList(_:_:)

Returns an array of the protocols adopted by a protocol.

Declaration

func protocol_copyProtocolList(_ proto: Protocol, _ outCount: UnsafeMutablePointer<UInt32>?) -> AutoreleasingUnsafeMutablePointer<Protocol>?

Parameters

proto

A protocol.

outCount

Upon return, contains the number of elements in the returned array.

Return Value

A C array of protocols adopted by proto. The array contains *outCount pointers followed by a NULL terminator. You must free the array with free().

If the protocol declares no properties, NULL is returned and *outCount is 0.

See Also

Working with Protocols

func objc_registerProtocol(Protocol)

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

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.