Simplify null checks

Author: viceice

Unity.Wcf/UnityContractBehavior.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.ServiceModel.Channels;
 using System.ServiceModel.Description;
 using System.ServiceModel.Dispatcher;
@@ -11,12 +11,7 @@ public class UnityContractBehavior : IContractBehavior
 
         public UnityContractBehavior(IInstanceProvider instanceProvider)
         {
-            if (instanceProvider == null)
-            {
-                throw new ArgumentNullException("instanceProvider");
-            }
-
-            _instanceProvider = instanceProvider;
+            _instanceProvider = instanceProvider ?? throw new ArgumentNullException("instanceProvider");
         }
 
         public void AddBindingParameters(ContractDescription contractDescription, ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
@@ -37,4 +32,4 @@ public void Validate(ContractDescription contractDescription, ServiceEndpoint en
         {
         }
     }
-}
+}

Unity.Wcf/UnityInstanceProvider.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.ServiceModel;
 using System.ServiceModel.Channels;
 using System.ServiceModel.Dispatcher;
@@ -12,18 +12,8 @@ public class UnityInstanceProvider : IInstanceProvider
 
         public UnityInstanceProvider(IUnityContainer container, Type contractType)
         {
-            if (container == null)
-            {
-                throw new ArgumentNullException("container");
-            }
-
-            if (contractType == null)
-            {
-                throw new ArgumentNullException("contractType");
-            }
-
-            _container = container;
-            _contractType = contractType;
+            _container = container ?? throw new ArgumentNullException("container");
+            _contractType = contractType ?? throw new ArgumentNullException("contractType");
         }
 
         public object GetInstance(InstanceContext instanceContext, Message message)
@@ -44,4 +34,4 @@ public void ReleaseInstance(InstanceContext instanceContext, object instance)
             instanceContext.Extensions.Find<UnityInstanceContextExtension>().DisposeOfChildContainer();
         }
     }
-}
+}