1 files changed, 88 insertions, 0 deletions
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Basic/ReferenceAssembly.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Basic/ReferenceAssembly.cs
new file mode 100644
index 000000000..665bd7ab1
--- /dev/null
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Basic/ReferenceAssembly.cs
@@ -0,0 +1,88 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.Core.Helpers;
+
+namespace Tango.Scripting.Basic
+{
+    public class ReferenceAssembly
+    {
+        private static Dictionary<String, Assembly> _assembliesCache;
+
+        static ReferenceAssembly()
+        {
+            _assembliesCache = new Dictionary<string, Assembly>();
+        }
+
+        public String File { get; set; }
+
+        public Type HintType { get; set; }
+
+        [JsonIgnore]
+        public String Name
+        {
+            get { return Path.GetFileNameWithoutExtension(File); }
+        }
+
+        public static ReferenceAssembly FromType(Type type)
+        {
+            ReferenceAssembly reference = new ReferenceAssembly();
+            reference.HintType = type;
+            var assembly = type.Assembly;
+            reference.File = assembly.Location;
+            return reference;
+        }
+
+        public static ReferenceAssembly FromFile(String file)
+        {
+            return new ReferenceAssembly() { File = file };
+        }
+
+        public Assembly Load()
+        {
+            Assembly loaded = null;
+            if (!_assembliesCache.TryGetValue(Name, out loaded))
+            {
+                try
+                {
+                    if (HintType != null)
+                    {
+                        loaded = HintType.Assembly;
+                    }
+                    else
+                    {
+                        loaded = Assembly.LoadFrom(File);
+                    }
+
+                    _assembliesCache.Add(Name, loaded);
+                }
+                catch
+                {
+                    try
+                    {
+                        String dotNetPath = AssemblyHelper.GetAssemblyTargetFrameworkFolder(Assembly.GetExecutingAssembly());
+                        String dotNetAsm = Path.Combine(dotNetPath, Name + ".dll");
+                        loaded = Assembly.LoadFrom(dotNetAsm);
+                        _assembliesCache.Add(Name, loaded);
+                    }
+                    catch (Exception ex)
+                    {
+                        throw new FileNotFoundException($"Could not load assembly '{Name}'. File not found.", ex);
+                    }
+                }
+            }
+
+            return loaded;
+        }
+
+        public override string ToString()
+        {
+            return Name;
+        }
+    }
+}