Failed to emit precompiled header because Loop condition

Question

Let said I have Swift and Objc classes, and a MyProject-Bridging.h

BazSwiftClass.swift

public class BazSwiftClass: NSObject {
    public let foo: String
    @objc init(foo: String) {
        self.foo = foo
    }
}

FooClass.h

#import "MyProject-Swift.h"
@interface FooClass : NSObject {
     - (BazSwiftClass)bazMethod;
}

I want to access the FooClass.h in another Swift Class (let said BarSwiftClass)

public class BarSwiftClass {
     public hello() -> BazSwiftClass {
          return FooClass().bazMethod()
     } 
}

I need FooClass.h in my swift file, so I added FooClass in my MyProject-Bridging.h

#import "FooClass.h"

So the Flow is like BarSwiftClass -> FooClass -> BazSwiftClass

It can't work because the compiler show "failed to emit precompiled header" and I think it is because of #import "FooClass.h" in MyProejct-Bridging.h

Please help.

Thank you.

Answer 1

Replace your code

#import "MyProject-Swift.h"
@interface FooClass : NSObject {
     - (BazSwiftClass)bazMethod;
}

With

@class BazSwiftClass
@interface FooClass : NSObject {
     - (BazSwiftClass)bazMethod;
}

and in FooClass.m File you can import #import "MyProject-Swift.h"