Cannot perform selector with function as param

Question

I have one small quest for you guys. I want perform selector which contain function as param. But always getting runtime error.

This method is from iAd framework. And this is what I m trying to do:

 let sel = Selector("requestAttributionDetailsWithBlock:")
 if obj.responds(to: sel) { 
    obj.perform(sel, with: funcAsVar)
 }

where funcAsVar is a function as variable. Help please, guys

runtime error is: libswiftCore.dylib-[_SwiftValue dealloc]:

I don't think Swift functions get automatically bridged to Objective C blocks. Have you tried a Swift block that calls the function? — Dave Weston, Mar 07 '17 at 03:28
Actually you might be able to use `@convention(block)` on the parameter you pass to the `perform` method. — Dave Weston, Mar 07 '17 at 03:37
The iAd network has been discontinued: http://stackoverflow.com/a/37347959/2108547 — Daniel Storm, Mar 07 '17 at 16:49
Thank you, @DaveWeston! It helped for me. How I can mark it as `resolved`? — Andrey Gagan, Mar 07 '17 at 16:58

score 1 · Accepted Answer · answered Mar 07 '17 at 19:25

1

You can add @convention(block) on the parameter you pass to the perform method. Like this:

let sel = Selector("requestAttributionDetailsWithBlock:")
 if obj.responds(to: sel) { 
    obj.perform(sel, with: @convention(block) funcAsVar)
 }

answered Mar 07 '17 at 19:25

Dave Weston

1 Answers1