[NativeAPI] Removed ManagedArray

Author: Lilyltt

Lagrange.Core.NativeAPI/NativeModel/Common/BotKeystoreStruct.cs

@@ -55,12 +55,12 @@ public BotKeystoreStruct() { }
 
         public ByteArrayNative SKey = new();
 
-        public ByteArrayKVPNative[] PsKey = [];
+        public ByteArrayDictNative PsKey = new();
 
         public static implicit operator BotKeystore(BotKeystoreStruct keystore)
         {
             var psKey = new Dictionary<string, string>();
-            foreach (var kvp in keystore.PsKey)
+            foreach (var kvp in (ByteArrayKVPNative[])keystore.PsKey)
             {
                 psKey[Encoding.UTF8.GetString(kvp.Key)] = Encoding.UTF8.GetString(kvp.Value);
             }
@@ -141,7 +141,7 @@ public static implicit operator BotKeystoreStruct(BotKeystore keystore)
         public BotKeystore ToKeystoreWithoutFree()
         {
             var psKey = new Dictionary<string, string>();
-            foreach (var kvp in PsKey)
+            foreach (var kvp in (ByteArrayKVPNative[])PsKey)
             {
                 psKey[Encoding.UTF8.GetString(kvp.Key)] = Encoding.UTF8.GetString(kvp.Value);
             }

Lagrange.Core.NativeAPI/NativeModel/Common/ByteArrayDictNative.cs

@@ -0,0 +1,40 @@
+using System.Runtime.InteropServices;
+
+namespace Lagrange.Core.NativeAPI.NativeModel.Common;
+
+public struct ByteArrayDictNative
+{
+    public int Length;
+    public IntPtr Data;
+    
+    public static implicit operator ByteArrayDictNative(ByteArrayKVPNative[] dict)
+    {
+        int size = Marshal.SizeOf<ByteArrayKVPNative>();
+        IntPtr ptr = Marshal.AllocHGlobal(size * dict.Length);
+        for (int i = 0; i < dict.Length; i++)
+        {
+            Marshal.StructureToPtr(dict[i], ptr + i * size, false);
+        }
+        
+        return new ByteArrayDictNative { Length = dict.Length, Data = ptr };
+    }
+    
+    public static implicit operator ByteArrayKVPNative[](ByteArrayDictNative dict)
+    {
+        if (dict.Data == IntPtr.Zero || dict.Length == 0)
+        {
+            return [];
+        }
+        
+        ByteArrayKVPNative[] result = new ByteArrayKVPNative[dict.Length];
+        int size = Marshal.SizeOf<ByteArrayKVPNative>();
+        for (int i = 0; i < dict.Length; i++)
+        {
+            result[i] = Marshal.PtrToStructure<ByteArrayKVPNative>(dict.Data + i * size);
+        }
+        
+        Marshal.FreeHGlobal(dict.Data);
+        
+        return result;
+    }
+}