1

Src/Core/Extensions/IEnumerable.cs

@@ -122,44 +122,20 @@ namespace BITKit
             value = default;
             return default;
         }
-        [Obsolete("Use TryGetElementAt instead")]
-        public static bool TryGet<T>(this IEnumerable<T> self, int index, out T value)=>TryGetElementAt(self, index, out value);
-
-        public static bool TryInsert<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey key, TValue value)
+        public static TValue GetOrCreate<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey t)  where TValue : new()
         {
-            lock (self)
+            if (self.TryGetValue(t, out var value))
             {
-                if (self.ContainsKey(key))
-                {
-                    self[key] = value;
-                }
-                else
-                {
-                    self.Add(key, value);
-                }
-                return true;
-            }
-        }
-        public static void Insert<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey key, TValue value)
-        {
-            TryInsert(self, key, value);
-        }
-        public static TValue GetOrCreate<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey t)
-        {
-            lock (self)
-            {
-                if (self.TryGetValue(t, out TValue value))
-                {
 
-                }
-                else
-                {
-                    value = Activator.CreateInstance<TValue>();
-                    self.Add(t, value);
-                }
-                return value;
             }
+            else
+            {
+                value = new TValue();
+                self.TryAdd(t, value);
+            }
+            return value;
         }
+
         public static bool TryRemove<T>(this IList<T> self, T t)
         {
             if (self.Contains(t))

Src/Core/Extensions/Object.cs

@@ -1,9 +1,64 @@
 using System;
+using System.Collections.Concurrent;
+using System.Runtime.CompilerServices;
+using Microsoft.Extensions.DependencyInjection;
+using Unity.Mathematics;
 
 namespace BITKit
 {
     public static partial class Extensions
     {
+        private static readonly ConcurrentDictionary<int,ConcurrentDictionary<int,object>> Services = new();
+        public static bool QueryComponents<T>(this IServiceProvider self,out T t1) where T : class
+        {
+            var id = self.GetHashCode();
+            var typeId = typeof(T).GetHashCode();
+            if (Services.GetOrCreate(id).TryGetValue(typeId, out var value) is false)
+            {
+                value = self.GetService<T>();
+                Services.GetOrCreate(id).TryAdd(typeId,value);
+            }
+            if (value is null)
+            {
+                t1 = null;
+                return false;
+            }
+            t1 = Unsafe.As<T>(value);
+            return true;
+        }
+        public static bool QueryComponents<T,T1> (this IServiceProvider self,out T t1,out T1 t2) where T : class where T1 : class
+        {
+            t1 = null;
+            t2 = null;
+            if (QueryComponents(self,out t1) is false) return false;
+            if (QueryComponents(self,out t2) is false) return false;
+            return true;
+        }
+        
+        public static bool QueryComponents<T,T1,T2> (this IServiceProvider self,out T t1,out T1 t2,out T2 t3) where T : class where T1 : class where T2 : class
+        {
+            t1 = null;
+            t2 = null;
+            t3 = null;
+            if (QueryComponents(self,out t1) is false) return false;
+            if (QueryComponents(self,out t2) is false) return false;
+            if (QueryComponents(self,out t3) is false) return false;
+            return true;
+        }
+        
+        public static bool QueryComponents<T,T1,T2,T3> (this IServiceProvider self,out T t1,out T1 t2,out T2 t3,out T3 t4) where T : class where T1 : class where T2 : class where T3 : class
+        {
+            t1 = null;
+            t2 = null;
+            t3 = null;
+            t4 = null;
+            if (QueryComponents(self,out t1) is false) return false;
+            if (QueryComponents(self,out t2) is false) return false;
+            if (QueryComponents(self,out t3) is false) return false;
+            if (QueryComponents(self,out t4) is false) return false;
+            return true;
+        }
+        
         public static T IsNull<T>(this T t, Action action)
         {
             if (t is null)