> Gwendal Roué wrote:
>
> `#if import Foo` can not deal with the fact that a single source file may
> have to perform the importability test several times.
This would be less of a problem if conditional imports like that worked locally
in all scopes of code, so you could write just
func foo() {
#if import UIKit
// Actually use UIKit...
#endif
// UIKit no longer visible.
}
— Pyry
> For example:
>
> #if canImport(UIKit)
> import UIKit
> // Some UIKit-related declarations
> #endif
> // Later in the same file
> func f() {
> #if canImport(UIKit)
> // Use UIKit-only declarations
> #endif
> }
>
> I know, I know, some will tell me to refactor my code. So let's just say I'm
> prototyping and that the code doesn't have its final shape, OK?
>
> Still, testing for module importability is not the same as importing it.
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