Swift language support?

ID	Created	Type	mocl Version	Dev OS	Target	Status
#49	by dmsurti on 2014-07-12 (2530 days ago)	question	14.05	Mac OS X	iOS	closed

Description

Summary: I tried a simple say-hello example (which works fine with iOS8 and OS X 10.10 Yosemite, using ObjC) on my iPad. However if I try the same example with Swift, when I look for the say_hello function in AppDelegate.swift, I see say_hello__callinfo. Is there a simple mechanism to call mocl generated code from Swift? If there are more steps required, any plans to add Swift language support?

Steps to Reproduce: This was my app.lisp:

(declaim (call-in say-hello))

(define say-hello (name)
  (format nil "Hello, ~A" name))

Need Xcode 6, OS X 10.10, iOS 8. Create swift only project. Rest of the steps are same. Try calling say_hello in AppDelegate.swift.

Expected Results: Should be callable from AppDelegate.swift

Actual Results: Not callable.

Notes:

Comments

Whoops. that's not define, it's defun :-) (Auto spell check did that, probably the spell checker likes Scheme more!!!)

- dmsurti, 2530 days ago

Hi,

Swift is a moving target and mocl doesn't yet try to integrate with it in any official capacity. For the time being, you could manually create Objective-C functions that wrap mocl calls, and then call those wrappers from Swift.

Hopefully there will be official support in future.

Wes

- Wukix, 2530 days ago

Hi,
Swift is a moving target and mocl doesn't yet try to integrate with it
-- Ok, that makes sense. 

For the time being, you could manually create Objective-C functions that wrap mocl calls,
-- Yes, I tried that but given that I have all my app logic code in Lisp and it is just UI code, so either of Swift or ObjC makes sense and when I looked at the wrapper layer, it looks like just a pointless indirection. (in the context of the 3D sports game that I am developing).

Hopefully there will be official support in future.
-- Yes, hope that there is official support once Swift reaches a stable state.

Thanks,
Deepak

- dmsurti, 2530 days ago