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75a83da03e
This implementation required a compromise between parser performance and AST structuring. On the one hand, Parse must be fast in order to keep things in the IDE zippy, on the other we must hit the disk to properly resolve 'canImport' conditions and inject members of the active clause into the AST. Additionally, a Parse-only pass may not provide platform-specific information to the compiler invocation and so may mistakenly activate or de-activate branches in the if-configuration decl. The compromise is to perform condition evaluation only when continuing on to semantic analysis. This keeps the parser quick and avoids the unpacking that parse does for active conditions while still retaining the ability to see through to an active condition when we know we're moving on to semantic analysis anyways.
75 lines
1.4 KiB
Swift
75 lines
1.4 KiB
Swift
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck -verify %s
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// REQUIRES: objc_interop
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class Unique {}
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#if canImport(Swift)
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#else
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class Unique {} // This should not happen
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#endif
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#if canImport(Swiftz)
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class Unique {} // This should not happen
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#else
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#endif
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#if canImport(UIKit)
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import UIKit
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class MyView : UIView {}
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#elseif canImport(AppKit)
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import AppKit
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class MyView : NSView {}
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#else
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class Unique {} // This should not happen
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#endif
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#if canImport(Foundation) || canImport(Foundation)
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import Foundation
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#else
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class Unique {} // This should not happen
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#endif
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#if canImport(Foundation) && canImport(Foundation)
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import Foundation
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#else
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class Unique {} // This should not happen
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#endif
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#if !canImport(Swiftz)
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#if canImport(UIKit)
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import UIKit
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#else
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class Unique {} // This should not happen
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#endif
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#else
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class Unique {} // This should not happen
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#endif
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func keepOn(keepingOn : () -> ()) {
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#if canImport(Foundation)
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keepingOn()
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#else
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class Unique {} // This should not happen
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#endif
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}
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keepOn {
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#if !canImport(Swift) || canImport(Foundation)
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print("")
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#elseif canImport(Swiftz)
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class Unique {} // This should not happen
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#else
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class Unique {} // This should not happen
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#endif
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let object : NSObject
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#if canImport(Foundation)
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object = NSObject()
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#else
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object = "This should not happen"
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#endif
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print(object)
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}
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