Cannot explicitly specialize a generic function

Question

I have issue with following code:

func generic1(name : String){
}

func generic2(name : String){
     generic1(name)
}
         


        

Answer 1

You don't need a generic here since you have static types (String as parameter), but if you want to have a generic function call another you could do the following.

Using Generic methods

func fetchObjectOrCreate(type: T.Type) -> T {
    if let existing = fetchExisting(type) {
       return existing
    }
    else {
        return createNew(type)
    }
}

func fetchExisting(type: T.Type) -> T {
    let entityName = NSStringFromClass(type)
     // Run query for entiry
} 

func createNew(type: T.Type) -> T {
     let entityName = NSStringFromClass(type)
     // create entity with name
} 

Using a generic class (Less flexible as the generic can be defined for 1 type only per instance)

class Foo {

   func doStuff(text: String) -> T {
      return doOtherStuff(text)
   }

   func doOtherStuff(text: String) -> T {

   }  

}

let foo = Foo()
foo.doStuff("text")