Function

protocol_copyMethodDescriptionList

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

Declaration

struct objc_method_description * protocol_copyMethodDescriptionList(Protocol *proto, BOOL isRequiredMethod, BOOL isInstanceMethod, unsigned int *outCount);

Parameters

p

A protocol.

isRequiredMethod

A Boolean value that indicates whether returned methods should be required methods (pass YES to specify required methods).

isInstanceMethod

A Boolean value that indicates whether returned methods should be instance methods (pass YES to specify instance methods).

outCount

Upon return, contains the number of method description structures in the returned array.

Return Value

A C array of objc_method_description structures containing the names and types of p’s methods specified by isRequiredMethod and isInstanceMethod. The array contains *outCount pointers followed by a NULL terminator. You must free the list with free().

If the protocol declares no methods that meet the specification, NULL is returned and *outCount is 0.

Discussion

Methods in other protocols adopted by this protocol are not included.

See Also

Working with Protocols

objc_getProtocol

Returns a specified protocol.

objc_copyProtocolList

Returns an array of all the protocols known to the runtime.

objc_allocateProtocol

Creates a new protocol instance.

objc_registerProtocol

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

protocol_addMethodDescription

Adds a method to a protocol.

protocol_addProtocol

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

protocol_addProperty

Adds a property to a protocol that is under construction.

protocol_getName

Returns a the name of a protocol.

protocol_isEqual

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

protocol_getMethodDescription

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

protocol_copyPropertyList

Returns an array of the properties declared by a protocol.

protocol_getProperty

Returns the specified property of a given protocol.

protocol_copyProtocolList

Returns an array of the protocols adopted by a protocol.

protocol_conformsToProtocol

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

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