Improve parameter type naming for generic types (#343)

Author: olegKoshmeliuk

CHANGELOG.md

@@ -4,10 +4,11 @@
 
 * Enhance BoDi error handling to provide the name of the interface being registered when that interface has already been resolved (#324)
 * Improve code-behind feature file compilation speed (#336)
+* Improve parameter type naming for generic types (#343)
 
 ## Bug fixes:
 
-*Contributors of this release (in alphabetical order):* @clrudolphi, @obligaron
+*Contributors of this release (in alphabetical order):* @clrudolphi, @obligaron, @olegKoshmeliuk
 
 # v2.2.1 - 2024-11-08
 

Reqnroll/Bindings/Reflection/BindingReflectionExtensions.cs

@@ -17,7 +17,7 @@ public static bool IsAssignableTo(this Type type, IBindingType baseType)
             if (baseType is RuntimeBindingType runtimeBindingType)
                 return runtimeBindingType.Type.IsAssignableFrom(type);
 
-            if (type.FullName == baseType.FullName)
+            if (new RuntimeBindingType(type).FullName == baseType.FullName)
                 return true;
 
             if (type.BaseType != null && IsAssignableTo(type.BaseType, baseType))
@@ -28,10 +28,11 @@ public static bool IsAssignableTo(this Type type, IBindingType baseType)
 
         public static bool IsAssignableFrom(this Type baseType, IBindingType type)
         {
+            var bindingType = new RuntimeBindingType(baseType);
             if (type is IPolymorphicBindingType polymorphicBindingType)
-                return polymorphicBindingType.IsAssignableTo(new RuntimeBindingType(baseType));
+                return polymorphicBindingType.IsAssignableTo(bindingType);
 
-            if (type.FullName == baseType.FullName)
+            if (type.FullName == bindingType.FullName)
                 return true;
 
             return false;

Reqnroll/Bindings/Reflection/RuntimeBindingType.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 
 namespace Reqnroll.Bindings.Reflection
 {
@@ -8,13 +9,30 @@ public class RuntimeBindingType : IPolymorphicBindingType
 
         public string Name => Type.Name;
 
-        public string FullName => Type.FullName;
+        public string FullName { get; }
 
         public string AssemblyName => Type.Assembly.GetName().Name;
 
         public RuntimeBindingType(Type type)
         {
             Type = type;
+            FullName = GetFullName(type);
+        }
+
+        private static string GetFullName(Type type)
+        {
+            if (!type.IsConstructedGenericType)
+            {
+                return type.FullName;
+            }
+
+            if (type.GetGenericTypeDefinition() == typeof(Nullable<>))
+            {
+                return type.GenericTypeArguments[0].FullName + "?";
+            }
+
+            var genericParams = string.Join(",", type.GenericTypeArguments.Select(x => x.Name));
+            return $"{type.Namespace}.{type.Name.Split('`')[0]}<{genericParams}>";
         }
 
         public bool IsAssignableTo(IBindingType baseType)
@@ -37,7 +55,7 @@ public override bool Equals(object obj)
             if (ReferenceEquals(null, obj)) return false;
             if (ReferenceEquals(this, obj)) return true;
             if (obj.GetType() != GetType()) return false;
-            return Equals((RuntimeBindingType) obj);
+            return Equals((RuntimeBindingType)obj);
         }
 
         public override int GetHashCode()