Function

protocol_conformsToProtocol(_:_:)

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

Declaration

func protocol_conformsToProtocol(_ proto: Protocol?, _ other: Protocol?) -> Bool

Parameters

proto

A protocol.

other

A protocol.

Return Value

true if proto conforms to other, otherwise false.

Discussion

One protocol can incorporate other protocols using the same syntax that classes use to adopt a protocol:

@protocol ProtocolName < protocol list >

All the protocols listed between angle brackets are considered part of the ProtocolName protocol.

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.

Beta Software

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