async/await exposure for Swift

README.md

@@ -34,10 +34,20 @@ import OggDecoder
 ```swift
 let decoder = OGGDecoder()
 let oggFile = oggFileURL()
+
+// Using completion handler
 decoder.decode(oggFile) { (savedWavUrl: URL?) in
   // Do whatever you want with URL
   // If convert was fail, returned url is nil
 }
+
+// Using async
+Task {
+  let outputUrl = await decoder.decode(oggFile)
+
+  var wavAudioUrl: URL!
+  let result = await decoder.decode(oggFile, into: wavAudioUrl)
+}
 ```
 
 Available methods: 
@@ -46,7 +56,8 @@ decoder.decode(URL) -> URL?
 decoder.decode(URL, completion: (URL?) -> Void)
 decoder.decode(URL, into: URL) -> bool
 decoder.decode(URL, into: URL, completion: (Bool) -> Void)
-
+decoder.decode(URL) async -> URL?
+decoder.decode(URL, into: URL) async -> Bool
 ```
 
 ## License

Sources/OggDecoderObjC/include/OGGDecoder.h

@@ -17,6 +17,16 @@ NS_ASSUME_NONNULL_BEGIN
 -(void)decode:(NSURL*)oggFile into:(NSURL*)outputFile completion:(void (^)(BOOL))completion;
 -(nullable NSURL*)decode:(NSURL*)oggFile;
 -(void)decode:(NSURL*)oggFile completion:(void (^)(NSURL* _Nullable outputFile))completion;
+
+// async/await exposure for Swift
+#if __has_attribute(availability)
+-(void)decode:(NSURL *)oggFile completion:(void (^)(NSURL * _Nullable))completionHandler NS_SWIFT_ASYNC_NAME(decode(oggFile:)) API_AVAILABLE(ios(15.0), macos(12.0));
+-(void)decode:(NSURL *)oggFile into:(NSURL *)outputFile completion:(void (^)(BOOL))completionHandler NS_SWIFT_ASYNC_NAME(decode(oggFile:into:)) API_AVAILABLE(ios(15.0), macos(12.0));
+#else
+-(void)decode:(NSURL *)oggFile completion:(void (^)(NSURL * _Nullable))completionHandler NS_SWIFT_ASYNC_NAME(decode(oggFile:));
+-(void)decode:(NSURL *)oggFile into:(NSURL *)outputFile completion:(void (^)(BOOL))completionHandler NS_SWIFT_ASYNC_NAME(decode(oggFile:into:));
+#endif
+
 @end
 
 NS_ASSUME_NONNULL_END

Tests/OggDecoderTests/OggDecoderTests.swift

@@ -114,6 +114,33 @@ final class OggDecoderTests: XCTestCase {
         waitForExpectations(timeout: 60)
     }
 
+    @available(iOS 15.0, macOS 12.0, *)
+    func test_decodeOggAudio_asyncAwait_returnsTrue() async throws {
+        let oggAudioUrl = try fetchFileUrlFromTestBundle(filename: "TestResources/Chopin-polonaise-in-a-military", ext: "ogg")
+        let result = await decoder.decode(oggAudioUrl, into: wavAudioUrl)
+        XCTAssertTrue(result)
+    }
+
+    @available(iOS 15.0, macOS 12.0, *)
+    func test_decodeOgaAudio_asyncAwait_returnsTrue() async throws {
+        let ogaAudioUrl = try fetchFileUrlFromTestBundle(filename: "TestResources/Chopin_-_Polonaise_Op._53", ext: "oga")
+        let result = await decoder.decode(ogaAudioUrl, into: wavAudioUrl)
+        XCTAssertTrue(result)
+    }
+
+    @available(iOS 15.0, macOS 12.0, *)
+    func test_decodeOggAudio_asyncAwait_returnsFileUrl() async throws {
+        let oggAudioUrl = try fetchFileUrlFromTestBundle(filename: "TestResources/Chopin-polonaise-in-a-military", ext: "ogg")
+        let outputUrl = await decoder.decode(oggAudioUrl)
+        XCTAssertNotNil(outputUrl)
+    }
+
+    @available(iOS 15.0, macOS 12.0, *)
+    func test_decodeOgaAudio_asyncAwait_returnsFileUrl() async throws {
+        let ogaAudioUrl = try fetchFileUrlFromTestBundle(filename: "TestResources/Chopin_-_Polonaise_Op._53", ext: "oga")
+        let outputUrl = await decoder.decode(ogaAudioUrl)
+        XCTAssertNotNil(outputUrl)
+    }
 
     private func fetchFileUrlFromTestBundle(filename: String, ext: String) throws -> URL {
         let bundle = Bundle.module