Swift4.2 support about apikit

[usk2000]

@ikesyo

Because Swift 4 or later can use multiple language versions simultaneously per target basis

I tried to re-install all Pods and I can build fine. It seems that I updated compiler version for APIKit.
Thanks for your advice!
And thanks for #265

[ikesyo]

APIKit is Swift 4 compatible, so should be compiled on Swift 4.2 compiler with Swift 4.0 language mode (compatibility mode). What are you suffering from?

If you are using CocoaPods, you can use post_install hook to pin Swift version to 4.0 for APIKit: CocoaPods/CocoaPods#6791 (comment).

On the other hand, we could add s.swift_version = '4.0' to APIKit.podspec for the pinning purpose. FYI @ishkawa

[usk2000]

@ikesyo
I want to use Swift4.2 feature in my project,
When I converted code to Swift 4.2, I get build error with APIKit.

APIKit is Swift 4 compatible, so should be compiled on Swift 4.2 compiler with Swift 4.0 language mode (compatibility mode)

OK, I will try it.

[ikesyo]

@usk2000 Because Swift 4 or later can use multiple language versions simultaneously per target basis, even if you use Swift 4.2 for your application target, there is no need to update APIKit to Swift 4.2 as well.

[ikesyo]

If you are using CocoaPods, you can use post_install hook to pin Swift version to 4.0 for APIKit: CocoaPods/CocoaPods#6791 (comment).

On the other hand, we could add s.swift_version = '4.0' to APIKit.podspec for the pinning purpose. FYI @ishkawa

Oh the podspec is already specifying swift_version so there should be no problem for CocoaPods users 😅:

APIKit/APIKit.podspec

Line 26 in dc4350d

s.swift_version = "4.0"

[usk2000]

@ikesyo

Because Swift 4 or later can use multiple language versions simultaneously per target basis

I will try it. I seems to set this feature wrong.

Thanks.