_cmd in Swift language

Question

My previous question was marked duplicate. I tried to edit my question, but I can't remove duplicate tag, so I have to create a new one What is the swift equivalent to _cmd?

I want to get current method name to use in a format message similar to this one

[NSExeception raise:NSInternalInconsistencyException format:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)]

Also, I want to use _cmd as key to set associated object. Does anyone know the equivalent of _cmd in Swift I really appreciate.

Your question was marked as a duplicate because it already has an answer: see the link on your old question. If you feel that it is not a duplicate, visit [meta](http://meta.stackoverflow.com/), but please read the [Help Center](http://stackoverflow.com/help/whats-meta) first. — AstroCB, Jun 30 '14 at 05:26
did you tried `__FUNCTION__`? if it is not what you want, make it clear in original question. we will reopen it if need to. — Bryan Chen, Jun 30 '14 at 05:34
I know how to use __FUNCTION__, but I want something like _cmd, cause it can be used in other case — LongNV, Jun 30 '14 at 06:36

score 23 · Answer 1 · answered Jun 30 '14 at 05:54

23

There's no _cmd, but you can use __FUNCTION__ to get the name of the current function, which can be used in place of selectors most of the time.

func myUnimplementedMethod() {
    println("You must override \(__FUNCTION__) in a subclass")
}
myUnimplementedMethod()
// prints "You must override myUnimplementedMethod() in a subclass"

answered Jun 30 '14 at 05:54

Nate Cook

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23

Note that `__FUNCTION__` was replaced with `#function`in Swift 2.2. – cherrmanncom Apr 27 '16 at 14:43

_cmd in Swift language

1 Answers1

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