Swift 4.1 (and above) Updated answer: Starting from Swift 4.1, all you have to is to conform to the Equatable protocol without the need of implementing the == method. See: SE-0185 – Synthesizing Equatable and Hashable conformance. Example: struct MyStruct: Equatable { var id: Int var value: String } let obj1 = MyStruct(id: 101, value: … Read more
I suggest using State Machine Compiler, it will output Objective-C code. I have had good success in Java and Python using this. You shouldn’t be writing state machine code by hand, you should be using something to generate the code for you. SMC will generate clean clear code you can then look at if you … Read more
You can do this with a generic class using a where clause: A where clause enables you to require that an associated type conforms to a certain protocol, and/or that certain type parameters and associated types be the same. To use it, make the class your property is defined in a generic class with a … Read more
This is just how protocols currently dispatch methods. A protocol witness table (see this WWDC talk for more info) is used in order to dynamically dispatch to implementations of protocol requirements upon being called on a protocol-typed instance. All it is, is really just a listing of the function implementations to call for each requirement … Read more
protocol TestProtocol { var name : String {set get} var age : Int {set get} } Provide a default extension for the protocol. Provide the default implementation for all the variables set and get which u want them to be optional. In below protocol, name and age are optional. extension TestProtocol { var name: String … Read more
Overview SOAP is a messaging protocol and in a nutshell is just another XML language. Its purpose is the data exchange over networks. Its concern is the encapsulation of these data and the rules for transmitting and receiving them. HTTP is an application protocol and SOAP messages are placed as the HTTP payload. Although there … Read more
No, they don’t have to match. When the message is sent, the SMTP Server (aka Message Transfer Agent or MTA) is creating a so called SMTP envelope which contains the recipients and the sender of the message (see RFC5321): SMTP transports a mail object. A mail object contains an envelope and content. The SMTP envelope … Read more
I haven’t tried this myself, but I think that the following syntax should work. __attribute__ ((deprecated)) @protocol MyProtocol @end This parallels the syntax for deprecating an entire interface as well as a single method. __attribute__ ((deprecated)) @interface MyClass @end @interface MyClass2 – (void) method __attribute__((deprecated)); @end