Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/WebParts/WebPartUtil.cs

@@ -0,0 +1,74 @@
+//------------------------------------------------------------------------------
+// <copyright file="WebPartUtil.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls.WebParts {
+
+    using System;
+    using System.Diagnostics;
+    using System.Reflection;
+    using System.Web.Compilation;
+
+    internal static class WebPartUtil {
+
+        // Called from WebPartManagerInternals and ConnectionsZone.
+        internal static object CreateObjectFromType(Type type) {
+            return HttpRuntime.FastCreatePublicInstance(type);
+        }
+
+        // We use BuildManager.GetType() instead of Type.GetType() so we can load types from the
+        // Code directory, even if no assembly is specified.
+        internal static Type DeserializeType(string typeName, bool throwOnError) {
+            return BuildManager.GetType(typeName, throwOnError);
+        }
+
+        internal static Type[] GetTypesForConstructor(ConstructorInfo constructor) {
+            Debug.Assert(constructor != null);
+            ParameterInfo[] parameters = constructor.GetParameters();
+            Type[] types = new Type[parameters.Length];
+            for (int i = 0; i < parameters.Length; i++) {
+                types[i] = parameters[i].ParameterType;
+            }
+            return types;
+        }
+
+        internal static bool IsConnectionPointTypeValid(Type connectionPointType, bool isConsumer) {
+            if (connectionPointType == null) {
+                return true;
+            }
+
+            if (!(connectionPointType.IsPublic || connectionPointType.IsNestedPublic)) {
+                return false;
+            }
+
+            Type baseType = isConsumer ? typeof(ConsumerConnectionPoint) : typeof(ProviderConnectionPoint);
+            if (!connectionPointType.IsSubclassOf(baseType)) {
+                return false;
+            }
+
+            Type[] constructorTypes = isConsumer ? ConsumerConnectionPoint.ConstructorTypes :
+                ProviderConnectionPoint.ConstructorTypes;
+            ConstructorInfo constructor = connectionPointType.GetConstructor(constructorTypes);
+            if (constructor == null) {
+                return false;
+            }
+
+            return true;
+        }
+
+        // This helper method used to be needed to resolve types in the Code directory.  Since this
+        // was fixed in VSWhidbey 380793, we can just use Type.AssemblyQualifiedName instead of
+        // Type.FullName.  However, I am leaving this helper method in place in case we need to make
+        // another fix in the future.
+        internal static string SerializeType(Type type) {
+            if (type.Assembly.GlobalAssemblyCache) {
+                return type.AssemblyQualifiedName;
+            }
+            else {
+                return type.FullName;
+            }
+        }
+    }
+}