| // RUN: %target-run-simple-swift | %FileCheck %s |
| // REQUIRES: executable_test |
| |
| // REQUIRES: objc_interop |
| |
| // FIXME: Should go into the standard library. |
| public extension _ObjectiveCBridgeable { |
| static func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectiveCType?) |
| -> Self { |
| var result: Self? |
| _forceBridgeFromObjectiveC(source!, result: &result) |
| return result! |
| } |
| } |
| |
| // CHECK: testing... |
| print("testing...") |
| |
| class C {} |
| |
| func bridgedStatus<T>(_: T.Type) -> String { |
| let bridged = _isBridgedToObjectiveC(T.self) |
| let verbatim = _isBridgedVerbatimToObjectiveC(T.self) |
| if !bridged && verbatim { |
| return "IS NOT BRIDGED BUT IS VERBATIM?!" |
| } |
| return bridged ? |
| verbatim ? "is bridged verbatim" : "is custom-bridged" |
| : "is unbridged" |
| } |
| |
| func testBridging<T>(_ x: T, _ name: String) { |
| print("\(name) \(bridgedStatus(T.self))") |
| var b : String |
| let result = _bridgeAnythingToObjectiveC(x) |
| b = "bridged as " + ( |
| (result as? C) != nil ? "C" : (result as? T) != nil ? "itself" : "an unknown type") |
| print("\(name) instance \(b)") |
| } |
| |
| //===----------------------------------------------------------------------===// |
| struct BridgedValueType : _ObjectiveCBridgeable { |
| func _bridgeToObjectiveC() -> C { |
| return C() |
| } |
| static func _forceBridgeFromObjectiveC( |
| _ x: C, |
| result: inout BridgedValueType? |
| ) { |
| _preconditionFailure("implement") |
| } |
| static func _conditionallyBridgeFromObjectiveC( |
| _ x: C, |
| result: inout BridgedValueType? |
| ) -> Bool { |
| _preconditionFailure("implement") |
| } |
| } |
| |
| // CHECK-NEXT: BridgedValueType is custom-bridged |
| // CHECK-NEXT: BridgedValueType instance bridged as C |
| testBridging(BridgedValueType(), "BridgedValueType") |
| |
| //===----------------------------------------------------------------------===// |
| struct UnbridgedValueType {} |
| |
| // CHECK-NEXT: UnbridgedValueType is unbridged |
| // CHECK-NEXT: UnbridgedValueType instance bridged as itself |
| testBridging(UnbridgedValueType(), "UnbridgedValueType") |
| |
| //===----------------------------------------------------------------------===// |
| class PlainClass {} |
| |
| // CHECK-NEXT: PlainClass is bridged verbatim |
| // CHECK-NEXT: PlainClass instance bridged as itself |
| testBridging(PlainClass(), "PlainClass") |
| |