get ToString description from native

Packages/com.teach310.core-bluetooth-for-unity/Runtime/CBATTRequest.cs

@@ -1,4 +1,5 @@
 using System;
+using CoreBluetooth.Foundation;
 
 namespace CoreBluetooth
 {
@@ -59,6 +60,8 @@ internal CBATTRequest(SafeNativeATTRequestHandle handle, NativeATTRequestProxy n
             _nativeATTRequest = nativeATTRequest;
         }
 
+        public override string ToString() => NSObject.ToString(this, Handle);
+
         public void Dispose()
         {
             if (_disposed) return;

Packages/com.teach310.core-bluetooth-for-unity/Runtime/CBCentral.cs

@@ -1,4 +1,5 @@
 using System;
+using CoreBluetooth.Foundation;
 
 namespace CoreBluetooth
 {
@@ -41,10 +42,7 @@ internal CBCentral(SafeNativeCentralHandle nativeCentral)
             _nativeCentral = new NativeCentralProxy(Handle);
         }
 
-        public override string ToString()
-        {
-            return $"CBCentral: identifier = {Identifier}, maximumUpdateValueLength = {MaximumUpdateValueLength}";
-        }
+        public override string ToString() => NSObject.ToString(this, Handle);
 
         public void Dispose()
         {

Packages/com.teach310.core-bluetooth-for-unity/Runtime/CBCentralManager.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading;
 
 namespace CoreBluetooth

Packages/com.teach310.core-bluetooth-for-unity/Runtime/CBMutableCharacteristic.cs

@@ -1,4 +1,5 @@
 using System;
+using CoreBluetooth.Foundation;
 
 namespace CoreBluetooth
 {
@@ -65,12 +66,7 @@ CBAttributePermissions permissions
             _nativeMutableCharacteristic = new NativeMutableCharacteristicProxy(Handle);
         }
 
-        public override string ToString()
-        {
-            var valueText = Value == null ? "null" : $"{{length = {Value.Length}, bytes = {BitConverter.ToString(Value).Replace("-", "")}}}";
-            var notifyingText = IsNotifying ? "YES" : "NO";
-            return $"CBMutableCharacteristic: UUID = {UUID}, properties = {Properties}, value = {valueText}, notifying = {notifyingText}, permissions = {Permissions}";
-        }
+        public override string ToString() => NSObject.ToString(this, Handle);
 
         public void Dispose()
         {

Packages/com.teach310.core-bluetooth-for-unity/Runtime/CBMutableService.cs

@@ -1,4 +1,5 @@
 using System;
+using CoreBluetooth.Foundation;
 
 namespace CoreBluetooth
 {
@@ -31,10 +32,7 @@ public CBMutableService(string uuid, bool isPrimary) : base(uuid)
             _nativeMutableService = new NativeMutableServiceProxy(Handle);
         }
 
-        public override string ToString()
-        {
-            return $"CBMutableService: UUID = {UUID}";
-        }
+        public override string ToString() => NSObject.ToString(this, Handle);
 
         public void Dispose()
         {

Packages/com.teach310.core-bluetooth-for-unity/Runtime/Foundation/AnyObject.cs

@@ -11,5 +11,21 @@ public static void Release(IntPtr handle)
                 NativeMethods.any_object_release(handle);
             }
         }
+
+        public static string ToString(IntPtr handle)
+        {
+            if (handle == IntPtr.Zero)
+            {
+                return string.Empty;
+            }
+
+            using var description = GetDescription(handle);
+            return description.ToString();
+        }
+
+        internal static NSString GetDescription(IntPtr handle)
+        {
+            return new NSString(NativeMethods.any_object_to_string(handle));
+        }
     }
 }

Packages/com.teach310.core-bluetooth-for-unity/Runtime/Foundation/NSObject.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Text.RegularExpressions;
+
+namespace CoreBluetooth.Foundation
+{
+    public class NSObject
+    {
+        public static string ToString<T>(T obj, SafeHandle handle)
+        {
+            return ToString(obj, handle.DangerousGetHandle());
+        }
+
+        public static string ToString<T>(T obj, IntPtr handle)
+        {
+            if (handle == IntPtr.Zero)
+            {
+                return typeof(T).Name;
+            }
+
+            using var description = AnyObject.GetDescription(handle);
+            string pattern = @"^<.*?:\s+0x[0-9a-f]+|>$";
+            var content = Regex.Replace(description.ToString(), pattern, "");
+            if (content == string.Empty)
+            {
+                return typeof(T).Name;
+            }
+
+            return $"{obj.GetType().Name}:{content}";
+        }
+    }
+}

Packages/com.teach310.core-bluetooth-for-unity/Runtime/Foundation/NativeMethods.cs

@@ -14,6 +14,9 @@ internal static class NativeMethods
         [DllImport(DLL_NAME, CallingConvention = CallingConvention.Cdecl)]
         internal static extern void any_object_release(IntPtr handle);
 
+        [DllImport(DLL_NAME, CallingConvention = CallingConvention.Cdecl)]
+        internal static extern SafeNSStringHandle any_object_to_string(IntPtr handle);
+
         [DllImport(DLL_NAME, CallingConvention = CallingConvention.Cdecl)]
         internal static extern SafeNSNumberHandle ns_number_new_bool([MarshalAs(UnmanagedType.I1)] bool value);
 

Packages/com.teach310.core-bluetooth-for-unity/Tests/Runtime/CBMutableCharacteristicTests.cs

@@ -61,7 +61,7 @@ public void Permissions()
         public void ToString_Output()
         {
             using var characteristic = new CBMutableCharacteristic(validUUID1, CBCharacteristicProperties.Broadcast, null, CBAttributePermissions.Readable);
-            Assert.That(characteristic.ToString(), Is.EqualTo($"CBMutableCharacteristic: UUID = {validUUID1}, properties = Broadcast, value = null, notifying = NO, permissions = Readable"));
+            Assert.That(characteristic.ToString(), Is.EqualTo($"CBMutableCharacteristic: UUID = {validUUID1}, Value = (null), Properties = 0x1, Permissions = 0x1, Descriptors = (null), SubscribedCentrals = (\n)"));
         }
 #endif
     }

Packages/com.teach310.core-bluetooth-for-unity/package.json

@@ -1,6 +1,6 @@
 {
   "name": "com.teach310.core-bluetooth-for-unity",
-  "version": "0.4.6",
+  "version": "0.4.7",
   "displayName": "CoreBluetooth",
   "description": "Provides native Apple CoreBluetooth integration for use with Unity.",
   "unity": "2022.3",

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/CB4UATTRequest.swift

@@ -32,3 +32,9 @@ public class CB4UATTRequest {
         return request.offset
     }
 }
+
+extension CB4UATTRequest: CustomStringConvertible {
+    public var description: String {
+        return request.description
+    }
+}

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/CB4UCentral.swift

@@ -15,3 +15,9 @@ public class CB4UCentral {
         return central.maximumUpdateValueLength
     }
 }
+
+extension CB4UCentral: CustomStringConvertible {
+    public var description: String {
+        return central.description
+    }
+}

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/CB4UCentralManager.swift

@@ -41,7 +41,7 @@ public class CB4UCentralManager : NSObject {
     public func cancelPeripheralConnection(peripheral: CB4UPeripheral) {
         centralManager.cancelPeripheralConnection(peripheral.peripheral)
     }
-
+    
     public func retrievePeripherals(withIdentifiers identifiers: [UUID]) -> NSMutableArray {
         let peripherals = centralManager.retrievePeripherals(withIdentifiers: identifiers)
         let array = NSMutableArray()
@@ -64,6 +64,10 @@ public class CB4UCentralManager : NSObject {
     public var isScanning: Bool {
         return centralManager.isScanning
     }
+
+    override public var description: String {
+        return centralManager.description
+    }
 }
 
 extension CB4UCentralManager : CBCentralManagerDelegate {

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/CB4UMutableCharacteristic.swift

@@ -11,7 +11,7 @@ public class CB4UMutableCharacteristic {
             characteristic.value = newValue
         }
     }
-
+    
     public var valueLength: Int {
         return characteristic.value?.count ?? 0
     }
@@ -38,3 +38,9 @@ public class CB4UMutableCharacteristic {
         self.characteristic = characteristic
     }
 }
+
+extension CB4UMutableCharacteristic: CustomStringConvertible {
+    public var description: String {
+        return characteristic.description
+    }
+}

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/CB4UMutableService.swift

@@ -15,3 +15,9 @@ public class CB4UMutableService {
         }
     }
 }
+
+extension CB4UMutableService: CustomStringConvertible {
+    public var description: String {
+        return service.description
+    }
+}

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/CB4UPeripheral.swift

@@ -105,6 +105,10 @@ public class CB4UPeripheral : NSObject {
     public func readRSSI() {
         peripheral.readRSSI()
     }
+
+    override public var description: String {
+        return peripheral.description
+    }
 }
 
 extension CB4UPeripheral : CBPeripheralDelegate {

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/CB4UPeripheralManager.swift

@@ -67,6 +67,10 @@ public class CB4UPeripheralManager : NSObject {
     public func respond(to request: CB4UATTRequest, withResult result: CBATTError.Code) {
         peripheralManager.respond(to: request.request, withResult: result)
     }
+
+    override public var description: String {
+        return peripheralManager.description
+    }
 }
 
 extension CB4UPeripheralManager : CBPeripheralManagerDelegate {

Plugins/CoreBluetoothForUnity/Sources/CoreBluetoothForUnity/FoundationForUnity/FoundationForUnity.swift

@@ -5,6 +5,14 @@ public func any_object_release(_ handle: UnsafeRawPointer) {
     Unmanaged<AnyObject>.fromOpaque(handle).release()
 }
 
+@_cdecl("any_object_to_string")
+public func any_object_to_string(_ handle: UnsafeRawPointer) -> UnsafeMutableRawPointer {
+    let instance = Unmanaged<AnyObject>.fromOpaque(handle).takeUnretainedValue()
+    let str = String(describing: instance)
+    let nsstring = str as NSString
+    return Unmanaged.passRetained(nsstring).toOpaque()
+}
+
 @_cdecl("ns_number_new_bool")
 public func ns_number_new_bool(_ value: Bool) -> UnsafeMutableRawPointer {
     let instance = NSNumber(value: value)