Fix AndroidBinder for Swift 6.3

Sources/AndroidBinder/AndroidBinder.swift

@@ -111,9 +111,12 @@ public extension AndroidBinder {
     /**
      * Determine whether the current thread is currently executing an incoming transaction.
      *
+     * Available since API level 33.
+     *
      * \return true if the current thread is currently executing an incoming transaction, and false
      * otherwise.
      */
+    @available(Android 33, *)
     static var isHandlingTransaction: Bool {
         AIBinder_isHandlingTransaction()
     }

Sources/AndroidBinder/Error.swift

@@ -36,8 +36,12 @@ public struct AndroidBinderError: Error {
 public extension AndroidBinderError {
 
     var message: String {
-        let status = Status(errorCode: errorCode)
-        return status.description
+        if #available(Android 30, *) {
+            let status = Status(errorCode: errorCode)
+            return status.description
+        } else {
+            return "Binder error (code: \(errorCode))"
+        }
     }
 }
 

Sources/AndroidBinder/Parcel.swift

@@ -50,6 +50,7 @@ public extension Parcel {
      *
      * \return A parcel which is not related to any IBinder objects.
      */
+    @available(Android 31, *)
     init() {
         self.handle = .create()
     }
@@ -73,6 +74,7 @@ public extension Parcel {
      *
      * Available since API level 31.
      */
+    @available(Android 31, *)
     var dataSize: Int {
         Int(handle.dataSize)
     }
@@ -106,6 +108,7 @@ public extension Parcel {
      *
      * Available since API level 31.
      */
+    @available(Android 31, *)
     func reset() throws(AndroidBinderError) {
         try handle.reset().get()
     }
@@ -119,6 +122,7 @@ public extension Parcel {
      * \param start starting position in \p other (must be a value from getDataPosition).
      * \param size number of bytes to copy from \p other.
      */
+    @available(Android 31, *)
     func appendContents(of other: borrowing Parcel, start: Int = 0, size: Int) throws(AndroidBinderError) {
         try handle.appendFrom(other.handle, start: Int32(start), size: Int32(size)).get()
     }
@@ -602,6 +606,7 @@ internal extension Parcel.Handle {
      *
      * Available since API level 31.
      */
+    @available(Android 31, *)
     static func create() -> Parcel.Handle {
         guard let pointer = AParcel_create() else {
             fatalError("Unable to initialize \(Self.self) \(#function)")
@@ -637,6 +642,7 @@ internal extension Parcel.Handle {
      *
      * Available since API level 31.
      */
+    @available(Android 31, *)
     var dataSize: Int32 {
         AParcel_getDataSize(pointer)
     }
@@ -655,6 +661,7 @@ internal extension Parcel.Handle {
      *
      * Available since API level 31.
      */
+    @available(Android 31, *)
     func reset() -> Result<Void, AndroidBinderError> {
         AParcel_reset(pointer).mapError()
     }
@@ -664,6 +671,7 @@ internal extension Parcel.Handle {
      *
      * Available since API level 31.
      */
+    @available(Android 31, *)
     func appendFrom(_ from: Parcel.Handle, start: Int32, size: Int32) -> Result<Void, AndroidBinderError> {
         AParcel_appendFrom(from.pointer, pointer, start, size).mapError()
     }

Sources/AndroidBinder/Status.swift

@@ -121,6 +121,7 @@ public extension Status {
 extension Status { //: CustomStringConvertible, CustomDebugStringConvertible {
 
     /// Get human-readable description for debugging.
+    @available(Android 30, *)
     public var description: String {
         handle.withDescription { $0.description }
     }
@@ -142,6 +143,7 @@ internal extension Status {
 
 internal extension Status {
 
+    @available(Android 30, *)
     struct Description: ~Copyable {
 
         let cString: UnsafePointer<CChar>
@@ -172,8 +174,9 @@ internal extension Status {
     }
 }
 
+@available(Android 30, *)
 extension Status.Description {
-    
+
     public var description: String {
         String(cString: cString)
     }
@@ -290,6 +293,7 @@ internal extension Status.Handle {
      *
      * \return a description, must be deleted with AStatus_deleteDescription.
      */
+    @available(Android 30, *)
     func withDescription<T>(_ block: (borrowing Status.Description) -> T) -> T {
         let description = Status.Description(status: self)
         return block(description)

Sources/AndroidOS/IBinderNDK.swift

@@ -56,7 +56,7 @@ internal extension AndroidBinder {
      * the Java object is of the wrong type, this will return null.
      */
     convenience init(_ javaObject: jobject, environment: JNIEnvironment) {
-        guard let pointer = AParcel_fromJavaParcel(environment, javaObject) else {
+        guard let pointer = AIBinder_fromJavaBinder(environment, javaObject) else {
             fatalError("Unable to initialize from Java object")
         }
         self.init(pointer)

Sources/AndroidOS/ParcelNDK.swift

@@ -24,6 +24,7 @@ public extension AndroidOS.Parcel {
 public extension AndroidOS.Parcel {
 
     /// Create a temporary NDK object and perform operatios on it.
+    @available(Android 30, *)
     func withNDK<E, Result>(_ body: (borrowing NDK) throws(E) -> Result) throws(E) -> Result where E: Error {
         let ndk = NDK.fromJava(javaThis, environment: javaEnvironment)
         return try body(ndk)
@@ -46,6 +47,7 @@ internal extension AndroidBinder.Parcel {
      * will return null. This must be deleted with AParcel_delete. This does not take ownership of the
      * jobject and is only good for as long as the jobject is alive.
      */
+    @available(Android 30, *)
     static func fromJava(_ javaObject: jobject, environment: JNIEnvironment) -> AndroidBinder.Parcel {
         guard let pointer = AParcel_fromJavaParcel(environment, javaObject) else {
             fatalError("Unable to initialize from Java object")