Reflection_Engine: Subtypes query added

Reflection_Engine/Query/ImplementingTypes.cs

@@ -24,8 +24,6 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
-using System.Linq;
-using System.Reflection;
 
 namespace BH.Engine.Reflection
 {
@@ -35,7 +33,9 @@ public static partial class Query
         /**** Public Methods                            ****/
         /***************************************************/
 
-        [Description("Returns all the loaded types that implement the specified interface.")]
+        [Description("Returns all loaded BHoM types that implement the specified interface.")]
+        [Input("@interface", "Interface to find its implementing types.")]
+        [Output("implementingTypes", "Collection of BHoM types that implement the input interface.")]
         public static List<Type> ImplementingTypes(this Type @interface)
         {
             if(@interface == null)
@@ -47,13 +47,7 @@ public static List<Type> ImplementingTypes(this Type @interface)
             if ([email protected])
                 return new List<Type>();
 
-            List<Type> implemented = new List<Type>();
-            foreach (Type t in Base.Query.BHoMTypeList())
-            {
-                if (@interface.IsAssignableFrom(t))
-                    implemented.Add(t);
-            }
-            return implemented;
+            return @interface.Subtypes();
         }
 
         /***************************************************/

Reflection_Engine/Query/Subtypes.cs

@@ -0,0 +1,62 @@
+/*
+ * This file is part of the Buildings and Habitats object Model (BHoM)
+ * Copyright (c) 2015 - 2023, the respective contributors. All rights reserved.
+ *
+ * Each contributor holds copyright over their respective contributions.
+ * The project versioning (Git) records all such contribution source information.
+ *                                           
+ *                                                                              
+ * The BHoM is free software: you can redistribute it and/or modify         
+ * it under the terms of the GNU Lesser General Public License as published by  
+ * the Free Software Foundation, either version 3.0 of the License, or          
+ * (at your option) any later version.                                          
+ *                                                                              
+ * The BHoM is distributed in the hope that it will be useful,              
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 
+ * GNU Lesser General Public License for more details.                          
+ *                                                                            
+ * You should have received a copy of the GNU Lesser General Public License     
+ * along with this code. If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.      
+ */
+
+using BH.oM.Base.Attributes;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+
+namespace BH.Engine.Reflection
+{
+    public static partial class Query
+    {
+        /***************************************************/
+        /**** Public Methods                            ****/
+        /***************************************************/
+
+        [Description("Returns all loaded BHoM types that inherit from the specified parent type.")]
+        [Input("parentType", "Parent type of the subtypes to be returned.")]
+        [Output("subtypes", "Collection of BHoM subtypes of the input parent type.")]
+        public static List<Type> Subtypes(this Type parentType)
+        {
+            if (parentType == null)
+            {
+                Base.Compute.RecordWarning("Cannot query the subtypes of a null type.");
+                return new List<Type>();
+            }
+
+            List<Type> implemented = new List<Type>();
+            foreach (Type t in Base.Query.BHoMTypeList())
+            {
+                if (parentType.IsAssignableFrom(t))
+                    implemented.Add(t);
+            }
+
+            return implemented;
+        }
+
+        /***************************************************/
+    }
+}
+
+
+