How can I add forward class references used in the -Swift.h header?
- by Bill
I'm integrating Swift code into a large Objective-C project, but I'm running into problems when my Swift code refers to Objective-C classes. For example, suppose I have:
An Objective-C class called MyTableViewController
An Objective-C class called DeletionWorkflow
I declared a Swift class as follows:
class DeletionVC: MyTableViewController {
let deleteWorkflow: DeletionWorkflow
...
}
If I now try to use this class by importing ProjectName-Swift.h into Objective-C code, I get undefined symbol errors for both MyTableViewController and DeletionWorkflow.
I can fix the problem in that individual source file by importing DeletionWorkflow.h and MyTableViewController.h before I import ProjectName-Swift.h but this doesn't scale up to a large project where I want my Swift and Objective-C to interact often.
Is there a way to add forward class references to ProjectName-Swift.h so that these errors don't occur when I try to use Swift classes from Objective-C code in my app?
