Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
366 views
in Technique[技术] by (71.8m points)

ios - Lazy var giving 'Instance member can not be used on type' error

I had this error several times now and I resorted to different workarounds, but I'm really curious why it happens. Basic scenario is following:

class SomeClass {
  var coreDataStuff = CoreDataStuff!
  lazy var somethingElse = SomethingElse(coreDataStuff: coreDataStuff)
}

So I understand I can not use self before class is fully initialised, but in this case I'm using self property coreDataStuff to initialise a lazy var which will not happen until my instance is ready.

Anybody could explain me why I'm getting Instance member can not be used on type error?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Try that :

class SomeClass {
  var coreDataStuff = CoreDataStuff!
  lazy var somethingElse: SomethingElse = SomethingElse(coreDataStuff: self.coreDataStuff)
}

It is important to precise the type of your lazy var and to add self. to the argument you pass


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

1.4m articles

1.4m replys

5 comments

57.0k users

...