Pool can now be used with types not derived from IRecyclable and/or without a public default constructor; consolidated type-related helper methods into a common helper class (TypeHelper.cs); optimized GetFieldInfosIncludingBaseClasses() method

git-svn-id: file:///srv/devel/repo-conversion/nusu@268 d2e56fa2-650e-0410-a79f-9358c0239efd

Nuclex.Support (net-4.0).csproj

@@ -58,10 +58,6 @@
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Source\Cloning\CloneFactoryTest.cs" />
-    <Compile Include="Source\Cloning\ClonerHelpers.cs" />
-    <Compile Include="Source\Cloning\ClonerHelpers.Test.cs">
-      <DependentUpon>ClonerHelpers.cs</DependentUpon>
-    </Compile>
     <Compile Include="Source\Cloning\ExpressionTreeCloner.cs" />
     <Compile Include="Source\Cloning\ExpressionTreeCloner.FieldBased.cs">
       <DependentUpon>ExpressionTreeCloner.cs</DependentUpon>
@@ -253,10 +249,6 @@
     <Compile Include="Source\Plugins\NoPluginAttribute.Test.cs">
       <DependentUpon>NoPluginAttribute.cs</DependentUpon>
     </Compile>
-    <Compile Include="Source\Plugins\PluginHelper.cs" />
-    <Compile Include="Source\Plugins\PluginHelper.Test.cs">
-      <DependentUpon>PluginHelper.cs</DependentUpon>
-    </Compile>
     <Compile Include="Source\Plugins\PluginHost.cs" />
     <Compile Include="Source\Plugins\PluginHost.Test.cs">
       <DependentUpon>PluginHost.cs</DependentUpon>
@@ -285,6 +277,10 @@
     <Compile Include="Source\ObservableHelper.Test.cs">
       <DependentUpon>ObservableHelper.cs</DependentUpon>
     </Compile>
+    <Compile Include="Source\TypeHelper.cs" />
+    <Compile Include="Source\TypeHelper.Test.cs">
+      <DependentUpon>\TypeHelper.cs</DependentUpon>
+    </Compile>
     <Compile Include="Source\Semaphore.cs" />
     <Compile Include="Source\Semaphore.Test.cs">
       <DependentUpon>Semaphore.cs</DependentUpon>

Nuclex.Support (xna-4.0-phone7).csproj

@@ -89,10 +89,6 @@
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Source\Cloning\CloneFactoryTest.cs" />
-    <Compile Include="Source\Cloning\ClonerHelpers.cs" />
-    <Compile Include="Source\Cloning\ClonerHelpers.Test.cs">
-      <DependentUpon>ClonerHelpers.cs</DependentUpon>
-    </Compile>
     <Compile Include="Source\Cloning\ExpressionTreeCloner.cs" />
     <Compile Include="Source\Cloning\ExpressionTreeCloner.FieldBased.cs">
       <DependentUpon>ExpressionTreeCloner.cs</DependentUpon>
@@ -284,10 +280,6 @@
     <Compile Include="Source\Plugins\NoPluginAttribute.Test.cs">
       <DependentUpon>NoPluginAttribute.cs</DependentUpon>
     </Compile>
-    <Compile Include="Source\Plugins\PluginHelper.cs" />
-    <Compile Include="Source\Plugins\PluginHelper.Test.cs">
-      <DependentUpon>PluginHelper.cs</DependentUpon>
-    </Compile>
     <Compile Include="Source\Plugins\PluginHost.cs" />
     <Compile Include="Source\Plugins\PluginHost.Test.cs">
       <DependentUpon>PluginHost.cs</DependentUpon>
@@ -316,6 +308,10 @@
     <Compile Include="Source\ObservableHelper.Test.cs">
       <DependentUpon>ObservableHelper.cs</DependentUpon>
     </Compile>
+    <Compile Include="Source\TypeHelper.cs" />
+    <Compile Include="Source\TypeHelper.Test.cs">
+      <DependentUpon>\TypeHelper.cs</DependentUpon>
+    </Compile>
     <Compile Include="Source\Semaphore.cs" />
     <Compile Include="Source\Semaphore.Test.cs">
       <DependentUpon>Semaphore.cs</DependentUpon>

Nuclex.Support (xna-4.0-xbox360).csproj

@@ -100,10 +100,6 @@
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Source\Cloning\CloneFactoryTest.cs" />
-    <Compile Include="Source\Cloning\ClonerHelpers.cs" />
-    <Compile Include="Source\Cloning\ClonerHelpers.Test.cs">
-      <DependentUpon>ClonerHelpers.cs</DependentUpon>
-    </Compile>
     <Compile Include="Source\Cloning\ExpressionTreeCloner.cs" />
     <Compile Include="Source\Cloning\ExpressionTreeCloner.FieldBased.cs">
       <DependentUpon>ExpressionTreeCloner.cs</DependentUpon>
@@ -295,10 +291,6 @@
     <Compile Include="Source\Plugins\NoPluginAttribute.Test.cs">
       <DependentUpon>NoPluginAttribute.cs</DependentUpon>
     </Compile>
-    <Compile Include="Source\Plugins\PluginHelper.cs" />
-    <Compile Include="Source\Plugins\PluginHelper.Test.cs">
-      <DependentUpon>PluginHelper.cs</DependentUpon>
-    </Compile>
     <Compile Include="Source\Plugins\PluginHost.cs" />
     <Compile Include="Source\Plugins\PluginHost.Test.cs">
       <DependentUpon>PluginHost.cs</DependentUpon>
@@ -327,6 +319,10 @@
     <Compile Include="Source\ObservableHelper.Test.cs">
       <DependentUpon>ObservableHelper.cs</DependentUpon>
     </Compile>
+    <Compile Include="Source\TypeHelper.cs" />
+    <Compile Include="Source\TypeHelper.Test.cs">
+      <DependentUpon>\TypeHelper.cs</DependentUpon>
+    </Compile>
     <Compile Include="Source\Semaphore.cs" />
     <Compile Include="Source\Semaphore.Test.cs">
       <DependentUpon>Semaphore.cs</DependentUpon>

Source/Cloning/ClonerHelpers.cs

@@ -1,81 +0,0 @@
-#region CPL License
-/*
-Nuclex Framework
-Copyright (C) 2002-2012 Nuclex Development Labs
-
-This library is free software; you can redistribute it and/or
-modify it under the terms of the IBM Common Public License as
-published by the IBM Corporation; either version 1.0 of the
-License, or (at your option) any later version.
-
-This library 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
-IBM Common Public License for more details.
-
-You should have received a copy of the IBM Common Public
-License along with this library
-*/
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Reflection;
-
-namespace Nuclex.Support.Cloning {
-
-  /// <summary>Contains helper methods for the cloners</summary>
-  internal static class ClonerHelpers {
-
-    /// <summary>
-    ///   Returns all the fields of a type, working around a weird reflection issue
-    ///   where explicitly declared fields in base classes are returned, but not
-    ///   automatic property backing fields.
-    /// </summary>
-    /// <param name="type">Type whose fields will be returned</param>
-    /// <param name="bindingFlags">Binding flags to use when querying the fields</param>
-    /// <returns>All of the type's fields, including its base types</returns>
-    public static FieldInfo[] GetFieldInfosIncludingBaseClasses(
-      Type type, BindingFlags bindingFlags
-    ) {
-      FieldInfo[] fieldInfos = type.GetFields(bindingFlags);
-
-      // If this class doesn't have a base, don't waste any time
-      if(type.BaseType == typeof(object)) {
-        return fieldInfos;
-      } else { // Otherwise, collect all types up to the furthest base class
-        var fieldInfoList = new List<FieldInfo>(fieldInfos);
-        while(type.BaseType != typeof(object)) {
-          type = type.BaseType;
-          fieldInfos = type.GetFields(bindingFlags);
-
-          // Look for fields we do not have listed yet and merge them into the main list
-          for(int index = 0; index < fieldInfos.Length; ++index) {
-            bool found = false;
-
-            for(int searchIndex = 0; searchIndex < fieldInfoList.Count; ++searchIndex) {
-              bool match =
-                (fieldInfoList[searchIndex].DeclaringType == fieldInfos[index].DeclaringType) &&
-                (fieldInfoList[searchIndex].Name == fieldInfos[index].Name);
-
-              if(match) {
-                found = true;
-                break;
-              }
-            }
-
-            if(!found) {
-              fieldInfoList.Add(fieldInfos[index]);
-            }
-          }
-        }
-
-        return fieldInfoList.ToArray();
-      }
-    }
-
-  }
-
-} // namespace Nuclex.Support.Cloning

Source/Cloning/ExpressionTreeCloner.FieldBased.cs

@@ -185,8 +185,8 @@ namespace Nuclex.Support.Cloning {
         );
 
         // Enumerate all of the type's fields and generate transfer expressions for each
-        FieldInfo[] fieldInfos = ClonerHelpers.GetFieldInfosIncludingBaseClasses(
+        FieldInfo[] fieldInfos = clonedType.GetFieldInfosIncludingBaseClasses(
-          clonedType, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
+          BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
         );
         for(int index = 0; index < fieldInfos.Length; ++index) {
           FieldInfo fieldInfo = fieldInfos[index];
@@ -495,8 +495,8 @@ namespace Nuclex.Support.Cloning {
       ICollection<Expression> transferExpressions
     ) {
       // Enumerate all of the type's fields and generate transfer expressions for each
-      FieldInfo[] fieldInfos = ClonerHelpers.GetFieldInfosIncludingBaseClasses(
+      FieldInfo[] fieldInfos = clonedType.GetFieldInfosIncludingBaseClasses(
-        clonedType, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
+        BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
       );
       for(int index = 0; index < fieldInfos.Length; ++index) {
         FieldInfo fieldInfo = fieldInfos[index];

Source/Cloning/ReflectionCloner.cs

@@ -167,8 +167,8 @@ namespace Nuclex.Support.Cloning {
       object clone = FormatterServices.GetUninitializedObject(originalType);
 #endif
 
-      FieldInfo[] fieldInfos = ClonerHelpers.GetFieldInfosIncludingBaseClasses(
+      FieldInfo[] fieldInfos = originalType.GetFieldInfosIncludingBaseClasses(
-        originalType, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
+        BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
       );
       for(int index = 0; index < fieldInfos.Length; ++index) {
         FieldInfo fieldInfo = fieldInfos[index];
@@ -249,8 +249,8 @@ namespace Nuclex.Support.Cloning {
       object clone = FormatterServices.GetUninitializedObject(originalType);
 #endif
 
-      FieldInfo[] fieldInfos = ClonerHelpers.GetFieldInfosIncludingBaseClasses(
+      FieldInfo[] fieldInfos = originalType.GetFieldInfosIncludingBaseClasses(
-        originalType, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
+        BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
       );
       for(int index = 0; index < fieldInfos.Length; ++index) {
         FieldInfo fieldInfo = fieldInfos[index];

Source/Cloning/SerializationCloner.cs

@@ -118,8 +118,8 @@ namespace Nuclex.Support.Cloning {
       ) {
         Type originalType = objectToSerialize.GetType();
 
-        FieldInfo[] fieldInfos = ClonerHelpers.GetFieldInfosIncludingBaseClasses(
+        FieldInfo[] fieldInfos = originalType.GetFieldInfosIncludingBaseClasses(
-          originalType, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
+          BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
         );
         for(int index = 0; index < fieldInfos.Length; ++index) {
           FieldInfo fieldInfo = fieldInfos[index];
@@ -143,8 +143,8 @@ namespace Nuclex.Support.Cloning {
       ) {
         Type originalType = deserializedObject.GetType();
 
-        FieldInfo[] fieldInfos = ClonerHelpers.GetFieldInfosIncludingBaseClasses(
+        FieldInfo[] fieldInfos = originalType.GetFieldInfosIncludingBaseClasses(
-          originalType, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
+          BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
         );
         for(int index = 0; index < fieldInfos.Length; ++index) {
           FieldInfo fieldInfo = fieldInfos[index];

Source/Collections/PairPriorityQueue.cs

@@ -30,8 +30,8 @@ namespace Nuclex.Support.Collections {
   ///   priority data type implements the IComparable interface, the user does not
   ///   even
   /// </remarks>
-  public class PairPriorityQueue<TPriority, TItem>
+  public class PairPriorityQueue<TPriority, TItem> :
-    : ICollection, IEnumerable<PriorityItemPair<TPriority, TItem>> {
+    ICollection, IEnumerable<PriorityItemPair<TPriority, TItem>> {
 
     #region class PairComparer
 

Source/Collections/ParentingCollection.cs

@@ -98,13 +98,12 @@ namespace Nuclex.Support.Collections {
       // starting from the last item in the assumption that this is the fastest
       // way to empty a list without causing excessive shiftings in the array.
       for(int index = base.Count - 1; index >= 0; --index) {
-
         IDisposable disposable = base[index] as IDisposable;
 
         // If the item is disposable, destroy it now
-        if(disposable != null)
+        if(disposable != null) {
           disposable.Dispose();
-
+        }
       }
 
       base.ClearItems();

Source/Collections/Pool.cs

@@ -45,18 +45,35 @@ namespace Nuclex.Support.Collections {
   ///     automatically call its IRecyclable.Recycle() method.
   ///   </para>
   /// </remarks>
-  public class Pool<TItem> where TItem : class, new() {
+  public class Pool<TItem> {
 
     /// <summary>Default number of recyclable objects the pool will store</summary>
     public const int DefaultPoolSize = 64;
 
     /// <summary>Initializes a new pool using the default capacity</summary>
-    public Pool() : this(DefaultPoolSize) { }
+    /// <param name="createNewDelegate">Delegate that will be used to create new items</param>
+    /// <param name="recycleDelegate">Delegate that will be used to recycle items</param>
+    public Pool(Func<TItem> createNewDelegate = null, Action<TItem> recycleDelegate = null) :
+      this(DefaultPoolSize, createNewDelegate, recycleDelegate) { }
 
     /// <summary>Initializes a new pool using a user-specified capacity</summary>
     /// <param name="capacity">Capacity of the pool</param>
-    public Pool(int capacity) {
+    /// <param name="createNewDelegate">Delegate that will be used to create new items</param>
+    /// <param name="recycleDelegate">Delegate that will be used to recycle items</param>
+    public Pool(
+      int capacity, Func<TItem> createNewDelegate = null, Action<TItem> recycleDelegate = null
+    ) {
       Capacity = capacity;
+
+      if(createNewDelegate == null) {
+        createNewDelegate = new Func<TItem>(Activator.CreateInstance<TItem>);
+      }
+      if(recycleDelegate == null) {
+        recycleDelegate = new Action<TItem>(callRecycleIfSupported);
+      }
+
+      this.createNewDelegate = createNewDelegate;
+      this.recycleDelegate = recycleDelegate;
     }
 
     /// <summary>
@@ -68,7 +85,7 @@ namespace Nuclex.Support.Collections {
         if(this.items.Count > 0) {
           return this.items.Dequeue();
         } else {
-          return new TItem();
+          return this.createNewDelegate();
         }
       }
     }
@@ -82,13 +99,14 @@ namespace Nuclex.Support.Collections {
       // Call Recycle() when the object is redeemed (instead of when it leaves
       // the pool again) in order to eliminate any references the object may hold
       // to other objects.
-      callRecycleIfSupported(item);
+      this.recycleDelegate(item);
 
       lock(this) {
         if(this.items.Count < this.capacity) {
           this.items.Enqueue(item);
         }
       }
+
     }
 
     /// <summary>Number of objects the pool can retain</summary>
@@ -125,6 +143,8 @@ namespace Nuclex.Support.Collections {
     ///   Required because the Queue class doesn't allow this value to be retrieved
     /// </remarks>
     private int capacity;
+    private Func<TItem> createNewDelegate;
+    private Action<TItem> recycleDelegate;
 
   }
 

Source/Plugins/Employer.cs

@@ -36,7 +36,7 @@ namespace Nuclex.Support.Plugins {
     /// <param name="type">Type which will be assessed</param>
     /// <returns>True if the type can be employed, otherwise false</returns>
     public virtual bool CanEmploy(Type type) {
-      return PluginHelper.HasDefaultConstructor(type);
+      return type.HasDefaultConstructor();
     }
 
     /// <summary>Employs the specified plugin type</summary>

Source/Plugins/FactoryEmployer.cs

@@ -24,7 +24,7 @@ using System.Collections.Generic;
 namespace Nuclex.Support.Plugins {
 
   /// <summary>Employer to create factories of suiting types found in plugins</summary>
-  /// <typeparam name="ProductType">
+  /// <typeparam name="TProduct">
   ///   Interface or base class that the types need to implement
   /// </typeparam>
   /// <remarks>
@@ -41,12 +41,12 @@ namespace Nuclex.Support.Plugins {
   ///     a human-readable name, capabilities or an icon.
   ///   </para>
   /// </remarks>
-  public class FactoryEmployer<ProductType> : Employer where ProductType : class {
+  public class FactoryEmployer<TProduct> : Employer where TProduct : class {
 
     #region class ConcreteFactory
 
     /// <summary>Concrete factory for the types in a plugin assembly</summary>
-    private class ConcreteFactory : IAbstractFactory<ProductType>, IAbstractFactory {
+    private class ConcreteFactory : IAbstractFactory<TProduct>, IAbstractFactory {
 
       /// <summary>
       ///   Initializes a factory and configures it for the specified product
@@ -58,8 +58,8 @@ namespace Nuclex.Support.Plugins {
 
       /// <summary>Create a new instance of the type the factory is configured to</summary>
       /// <returns>The newly created instance</returns>
-      public ProductType CreateInstance() {
+      public TProduct CreateInstance() {
-        return (ProductType)Activator.CreateInstance(this.concreteType);
+        return (TProduct)Activator.CreateInstance(this.concreteType);
       }
 
       /// <summary>Create a new instance of the type the factory is configured to</summary>
@@ -77,11 +77,11 @@ namespace Nuclex.Support.Plugins {
 
     /// <summary>Initializes a new FactoryEmployer</summary>
     public FactoryEmployer() {
-      this.employedFactories = new List<IAbstractFactory<ProductType>>();
+      this.employedFactories = new List<IAbstractFactory<TProduct>>();
     }
 
     /// <summary>List of all factories that the instance employer has created</summary>
-    public List<IAbstractFactory<ProductType>> Factories {
+    public List<IAbstractFactory<TProduct>> Factories {
       get { return this.employedFactories; }
     }
 
@@ -90,20 +90,20 @@ namespace Nuclex.Support.Plugins {
     /// <returns>True if the type can be employed</returns>
     public override bool CanEmploy(Type type) {
       return
-        PluginHelper.HasDefaultConstructor(type) &&
+        type.HasDefaultConstructor() &&
-        typeof(ProductType).IsAssignableFrom(type) &&
+        typeof(TProduct).IsAssignableFrom(type) &&
         !type.ContainsGenericParameters;
     }
 
     /// <summary>Employs the specified plugin type</summary>
     /// <param name="type">Type to be employed</param>
     public override void Employ(Type type) {
-      if(!PluginHelper.HasDefaultConstructor(type)) {
+      if(!type.HasDefaultConstructor()) {
         throw new MissingMethodException(
           "Cannot employ type because it does not have a public default constructor"
         );
       }
-      if(!typeof(ProductType).IsAssignableFrom(type)) {
+      if(!typeof(TProduct).IsAssignableFrom(type)) {
         throw new InvalidCastException(
           "Cannot employ type because it cannot be cast to the factory's product type"
         );
@@ -118,7 +118,7 @@ namespace Nuclex.Support.Plugins {
     }
 
     /// <summary>All factories that the instance employer has created</summary>
-    private List<IAbstractFactory<ProductType>> employedFactories;
+    private List<IAbstractFactory<TProduct>> employedFactories;
 
   }
 

Source/Plugins/InstanceEmployer.cs

@@ -24,7 +24,7 @@ using System.Collections.Generic;
 namespace Nuclex.Support.Plugins {
 
   /// <summary>Employer that directly creates instances of the types in a plugin</summary>
-  /// <typeparam name="T">Interface or base class required for the employed types</typeparam>
+  /// <typeparam name="TEmployedType">Interface or base class required for the employed types</typeparam>
   /// <remarks>
   ///   <para>
   ///     This employer directly creates an instance of any type in a plugin assembly that
@@ -44,15 +44,15 @@ namespace Nuclex.Support.Plugins {
   ///     factory would then be implemented on the plugin side.
   ///   </para>
   /// </remarks>
-  public class InstanceEmployer<T> : Employer {
+  public class InstanceEmployer<TEmployedType> : Employer {
 
     /// <summary>Initializes a new instance employer</summary>
     public InstanceEmployer() {
-      this.employedInstances = new List<T>();
+      this.employedInstances = new List<TEmployedType>();
     }
 
     /// <summary>All instances that have been employed</summary>
-    public List<T> Instances {
+    public List<TEmployedType> Instances {
       get { return this.employedInstances; }
     }
 
@@ -61,19 +61,19 @@ namespace Nuclex.Support.Plugins {
     /// <returns>True if the type can be employed</returns>
     public override bool CanEmploy(Type type) {
       return
-        PluginHelper.HasDefaultConstructor(type) &&
+        type.HasDefaultConstructor() &&
-        typeof(T).IsAssignableFrom(type) &&
+        typeof(TEmployedType).IsAssignableFrom(type) &&
         !type.ContainsGenericParameters;
     }
 
     /// <summary>Employs the specified plugin type</summary>
     /// <param name="type">Type to be employed</param>
     public override void Employ(Type type) {
-      this.employedInstances.Add((T)Activator.CreateInstance(type));
+      this.employedInstances.Add((TEmployedType)Activator.CreateInstance(type));
     }
 
     /// <summary>All instances employed by the instance employer</summary>
-    private List<T> employedInstances;
+    private List<TEmployedType> employedInstances;
 
   }
 

Source/Plugins/PluginHelper.Test.cs

@@ -1,83 +0,0 @@
-#region CPL License
-/*
-Nuclex Framework
-Copyright (C) 2002-2012 Nuclex Development Labs
-
-This library is free software; you can redistribute it and/or
-modify it under the terms of the IBM Common Public License as
-published by the IBM Corporation; either version 1.0 of the
-License, or (at your option) any later version.
-
-This library 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
-IBM Common Public License for more details.
-
-You should have received a copy of the IBM Common Public
-License along with this library
-*/
-#endregion
-
-using System;
-using System.IO;
-
-#if UNITTEST
-
-using NUnit.Framework;
-
-namespace Nuclex.Support.Plugins {
-
-  /// <summary>Unit Test for the plugin helper class</summary>
-  [TestFixture]
-  internal class PluginHelperTest {
-
-    #region class NoDefaultConstructor
-
-    /// <summary>Test class that doesn't have a default constructor</summary>
-    private class NoDefaultConstructor {
-      /// <summary>Initializes a new instance of the test class</summary>
-      /// <param name="dummy">Dummy argument so this is no default constructor</param>
-      public NoDefaultConstructor(int dummy) { }
-    }
-
-    #endregion // class NoDefaultConstructor
-
-    #region class NonPublicDefaultConstructor
-
-    /// <summary>Test class that has a non-public default constructor</summary>
-    private class NonPublicDefaultConstructor {
-      /// <summary>Initializes a new instance of the test class</summary>
-      protected NonPublicDefaultConstructor() { }
-    }
-
-    #endregion // class NonPublicDefaultConstructor
-
-    #region class PublicDefaultConstructor
-
-    /// <summary>Test class that has a public default constructor</summary>
-    private class PublicDefaultConstructor {
-      /// <summary>Initializes a new instance of the test class</summary>
-      public PublicDefaultConstructor() { }
-    }
-
-    #endregion // class PublicDefaultConstructor
-
-    /// <summary>Tests whether the default constructor detection works as expected</summary>
-    [Test]
-    public void TestDefaultConstructorDetection() {
-      Assert.IsFalse(
-        PluginHelper.HasDefaultConstructor(typeof(NoDefaultConstructor))
-      );
-      Assert.IsFalse(
-        PluginHelper.HasDefaultConstructor(typeof(NonPublicDefaultConstructor))
-      );
-      Assert.IsTrue(
-        PluginHelper.HasDefaultConstructor(typeof(PublicDefaultConstructor))
-      );
-    }
-
-  }
-
-} // namespace Nuclex.Support.Plugins
-
-#endif // UNITTEST

Source/Plugins/PluginHelper.cs

@@ -1,44 +0,0 @@
-#region CPL License
-/*
-Nuclex Framework
-Copyright (C) 2002-2012 Nuclex Development Labs
-
-This library is free software; you can redistribute it and/or
-modify it under the terms of the IBM Common Public License as
-published by the IBM Corporation; either version 1.0 of the
-License, or (at your option) any later version.
-
-This library 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
-IBM Common Public License for more details.
-
-You should have received a copy of the IBM Common Public
-License along with this library
-*/
-#endregion
-
-using System;
-using System.Reflection;
-
-namespace Nuclex.Support.Plugins {
-
-  /// <summary>Supporting functions for the plugin classes</summary>
-  public static class PluginHelper {
-
-    /// <summary>Determines whether the given type has a default constructor</summary>
-    /// <param name="type">Type which is to be checked</param>
-    /// <returns>True if the type has a default constructor</returns>
-    public static bool HasDefaultConstructor(Type type) {
-      ConstructorInfo[] constructors = type.GetConstructors();
-
-      foreach(ConstructorInfo constructor in constructors)
-        if(constructor.IsPublic && (constructor.GetParameters().Length == 0))
-          return true;
-
-      return false;
-    }
-
-  }
-
-} // namespace Nuclex.Support.Plugins

Source/Plugins/PrototypeFactory.cs

@@ -7,16 +7,16 @@ namespace Nuclex.Support.Plugins {
 #if !NO_CLONING
 
   /// <summary>Factory that creates instances by cloning a prototype</summary>
-  /// <typeparam name="ProductType">Type of product created by the factory</typeparam>
+  /// <typeparam name="TProduct">Type of product created by the factory</typeparam>
-  /// <typeparam name="ConcreteType">Type of the prototype that will be cloned</typeparam>
+  /// <typeparam name="TConcreteType">Type of the prototype that will be cloned</typeparam>
-  public class PrototypeFactory<ProductType, ConcreteType> :
+  public class PrototypeFactory<TProduct, TConcreteType> :
-    IAbstractFactory<ProductType>, IAbstractFactory, IDisposable
+    IAbstractFactory<TProduct>, IAbstractFactory, IDisposable
-    where ProductType : class
+    where TProduct : class
-    where ConcreteType : class, ICloneable {
+    where TConcreteType : class, ICloneable {
 
     /// <summary>Initializes a new prototype based factory</summary>
     /// <param name="prototype">Prototype instance that will be cloned</param>
-    public PrototypeFactory(ConcreteType prototype) {
+    public PrototypeFactory(TConcreteType prototype) {
       this.prototype = prototype;
     }
 
@@ -24,8 +24,8 @@ namespace Nuclex.Support.Plugins {
     ///   Creates a new instance of the type to which the factory is specialized
     /// </summary>
     /// <returns>The newly created instance</returns>
-    public ProductType CreateInstance() {
+    public TProduct CreateInstance() {
-      return (ProductType)this.prototype.Clone();
+      return (TProduct)this.prototype.Clone();
     }
 
     /// <summary>
@@ -49,7 +49,7 @@ namespace Nuclex.Support.Plugins {
     }
 
     /// <summary>The prototype object</summary>
-    private ConcreteType prototype;
+    private TConcreteType prototype;
 
   }
 

Source/TypeHelper.Test.cs

@@ -25,11 +25,42 @@ using System.Reflection;
 
 using NUnit.Framework;
 
-namespace Nuclex.Support.Cloning {
+namespace Nuclex.Support {
 
-  /// <summary>Unit Test for the cloner helpers</summary>
+  /// <summary>Unit Test for the strign segment class</summary>
   [TestFixture]
-  internal class ClonerHelpersTest {
+  internal class TypeHelperTest {
+
+    #region class NoDefaultConstructor
+
+    /// <summary>Test class that doesn't have a default constructor</summary>
+    private class NoDefaultConstructor {
+      /// <summary>Initializes a new instance of the test class</summary>
+      /// <param name="dummy">Dummy argument so this is no default constructor</param>
+      public NoDefaultConstructor(int dummy) { }
+    }
+
+    #endregion // class NoDefaultConstructor
+
+    #region class NonPublicDefaultConstructor
+
+    /// <summary>Test class that has a non-public default constructor</summary>
+    private class NonPublicDefaultConstructor {
+      /// <summary>Initializes a new instance of the test class</summary>
+      protected NonPublicDefaultConstructor() { }
+    }
+
+    #endregion // class NonPublicDefaultConstructor
+
+    #region class PublicDefaultConstructor
+
+    /// <summary>Test class that has a public default constructor</summary>
+    private class PublicDefaultConstructor {
+      /// <summary>Initializes a new instance of the test class</summary>
+      public PublicDefaultConstructor() { }
+    }
+
+    #endregion // class PublicDefaultConstructor
 
     #region class Base
 
@@ -61,8 +92,8 @@ namespace Nuclex.Support.Cloning {
     /// </summary>
     [Test]
     public void CanGetBackingFieldsForPropertiesInBaseClasses() {
-      FieldInfo[] fieldInfos = ClonerHelpers.GetFieldInfosIncludingBaseClasses(
+      FieldInfo[] fieldInfos = typeof(Derived).GetFieldInfosIncludingBaseClasses(
-        typeof(Derived), BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
+        BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
       );
       Assert.AreEqual(4, fieldInfos.Length);
     }
@@ -79,8 +110,16 @@ namespace Nuclex.Support.Cloning {
       };
     }
 
+    /// <summary>Tests whether the default constructor detection works as expected</summary>
+    [Test]
+    public void TestDefaultConstructorDetection() {
+      Assert.IsFalse(typeof(NoDefaultConstructor).HasDefaultConstructor());
+      Assert.IsFalse(typeof(NonPublicDefaultConstructor).HasDefaultConstructor());
+      Assert.IsTrue(typeof(PublicDefaultConstructor).HasDefaultConstructor());
     }
 
-} // namespace Nuclex.Support.Cloning
+  }
+
+} // namespace Nuclex.Support
 
 #endif // UNITTEST

Source/TypeHelper.cs

@@ -0,0 +1,147 @@
+#region CPL License
+/*
+Nuclex Framework
+Copyright (C) 2002-2012 Nuclex Development Labs
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the IBM Common Public License as
+published by the IBM Corporation; either version 1.0 of the
+License, or (at your option) any later version.
+
+This library 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
+IBM Common Public License for more details.
+
+You should have received a copy of the IBM Common Public
+License along with this library
+*/
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+
+namespace Nuclex.Support {
+
+  /// <summary>Helper methods for the reflection Type class</summary>
+  public static class TypeHelper {
+
+    #region class MemberInfoComparer
+
+    /// <summary>Determines whether member informations relate to the same member</summary>
+    private class MemberInfoComparer : IEqualityComparer<MemberInfo> {
+
+      /// <summary>Default instance of the comparer</summary>
+      public static readonly MemberInfoComparer Default = new MemberInfoComparer();
+
+      /// <summary>Checks whether two member informations are equal</summary>
+      /// <param name="left">Informations about the left member in the comaprison</param>
+      /// <param name="right">Informations about the right member in the comparison</param>
+      /// <returns>True if the two member informations relate to the same member</returns>
+      public bool Equals(MemberInfo left, MemberInfo right) {
+        return
+          (left.DeclaringType == right.DeclaringType) &&
+          (left.Name == right.Name);
+      }
+
+      /// <summary>Determines the hash code of the specified member informations</summary>
+      /// <param name="memberInfo">
+      ///   Member informations whose hash code will be determined
+      /// </param>
+      /// <returns>The hash code of the specified member informations</returns>
+      public int GetHashCode(MemberInfo memberInfo) {
+        return (memberInfo.DeclaringType.GetHashCode() ^ memberInfo.Name.GetHashCode());
+      }
+
+    }
+
+    #endregion // class MemberInfoComparer
+
+    /// <summary>Determines whether the given type has a default constructor</summary>
+    /// <param name="type">Type which is to be checked</param>
+    /// <returns>True if the type has a default constructor</returns>
+    public static bool HasDefaultConstructor(this Type type) {
+      ConstructorInfo[] constructors = type.GetConstructors();
+
+      for(int index = 0; index < constructors.Length; ++index) {
+        ConstructorInfo constructor = constructors[index];
+        if(constructor.IsPublic && (constructor.GetParameters().Length == 0)) {
+          return true;
+        }
+      }
+
+      return false;
+    }
+
+#if XBOX || WINDOWS_PHONE
+    /// <summary>
+    ///   Returns all the fields of a type, including those defined in the type's base classes
+    /// </summary>
+    /// <param name="type">Type whose fields will be returned</param>
+    /// <param name="bindingFlags">Binding flags to use when querying the fields</param>
+    /// <returns>All of the type's fields, including its base types</returns>
+    public static FieldInfo[] GetFieldInfosIncludingBaseClasses(
+      this Type type, BindingFlags bindingFlags
+    ) {
+      FieldInfo[] fieldInfos = type.GetFields(bindingFlags);
+
+      // If this class doesn't have a base, don't waste any time
+      if(type.BaseType != typeof(object)) {
+        var fieldInfoSet = new Dictionary<FieldInfo, object>(MemberInfoComparer.Default);
+        for(int index = 0; index < fieldInfos.Length; ++index) {
+          fieldInfoSet.Add(fieldInfos[index], null);
+        }
+
+        while(type.BaseType != typeof(object)) {
+          type = type.BaseType;
+          fieldInfos = type.GetFields(bindingFlags);
+
+          for(int index = 0; index < fieldInfos.Length; ++index) {
+            FieldInfo fieldInfo = fieldInfos[index];
+            if(!fieldInfoSet.ContainsKey(fieldInfo)) {
+              fieldInfoSet.Add(fieldInfo, null);
+            }
+          }
+        }
+
+        fieldInfos = new FieldInfo[fieldInfoSet.Count];
+        fieldInfoSet.Keys.CopyTo(fieldInfos, 0);
+      }
+
+      return fieldInfos;
+    }
+#else
+    /// <summary>
+    ///   Returns all the fields of a type, including those defined in the type's base classes
+    /// </summary>
+    /// <param name="type">Type whose fields will be returned</param>
+    /// <param name="bindingFlags">Binding flags to use when querying the fields</param>
+    /// <returns>All of the type's fields, including its base types</returns>
+    public static FieldInfo[] GetFieldInfosIncludingBaseClasses(
+      this Type type, BindingFlags bindingFlags
+    ) {
+      FieldInfo[] fieldInfos = type.GetFields(bindingFlags);
+
+      // If this class doesn't have a base, don't waste any time
+      if(type.BaseType != typeof(object)) {
+        var fieldInfoSet = new HashSet<FieldInfo>(fieldInfos, MemberInfoComparer.Default);
+        while(type.BaseType != typeof(object)) {
+          type = type.BaseType;
+          fieldInfos = type.GetFields(bindingFlags);
+          for(int index = 0; index < fieldInfos.Length; ++index) {
+            fieldInfoSet.Add(fieldInfos[index]);
+          }
+        }
+
+        fieldInfos = new FieldInfo[fieldInfoSet.Count];
+        fieldInfoSet.CopyTo(fieldInfos);
+      }
+
+      return fieldInfos;
+    }
+#endif
+
+  }
+
+} // namespace Nuclex.Support