Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Channels/BindingElement.cs

@@ -0,0 +1,66 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Channels
+{
+    using System.Runtime;
+    using System.ServiceModel;
+
+    public abstract class BindingElement
+    {
+        protected BindingElement()
+        {
+        }
+
+        protected BindingElement(BindingElement elementToBeCloned)
+        {
+        }
+
+        public abstract BindingElement Clone();
+
+        public virtual IChannelFactory<TChannel> BuildChannelFactory<TChannel>(BindingContext context)
+        {
+            if (context == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
+
+            return context.BuildInnerChannelFactory<TChannel>();
+        }
+
+        public virtual IChannelListener<TChannel> BuildChannelListener<TChannel>(BindingContext context) where TChannel : class, IChannel
+        {
+            if (context == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
+
+            return context.BuildInnerChannelListener<TChannel>();
+        }
+
+        public virtual bool CanBuildChannelFactory<TChannel>(BindingContext context)
+        {
+            if (context == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
+
+            return context.CanBuildInnerChannelFactory<TChannel>();
+        }
+
+        public virtual bool CanBuildChannelListener<TChannel>(BindingContext context) where TChannel : class, IChannel
+        {
+            if (context == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
+
+            return context.CanBuildInnerChannelListener<TChannel>();
+        }
+
+        public abstract T GetProperty<T>(BindingContext context) where T : class;
+
+        internal T GetIndividualProperty<T>() where T : class
+        {
+            return this.GetProperty<T>(new BindingContext(new CustomBinding(), new BindingParameterCollection()));
+        }
+
+        internal virtual bool IsMatch(BindingElement b)
+        {
+            Fx.Assert(true, "Should not be called unless this binding element is used in one of the standard bindings. In which case, please re-implement the IsMatch() method.");
+            return false;
+        }
+    }
+}