Fixed all ReSharper issues

Some are silly, like the "member not used" for public interfaces. The comments everywhere are ugly, sorry, but it keeps the possibly important issues visible without a dependency on some ReSharper annotations package.

Tapeti.Annotations/ExchangeAttribute.cs

@@ -1,15 +0,0 @@
-using System;
-
-namespace Tapeti.Annotations
-{
-    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
-    public class ExchangeAttribute : Attribute
-    {
-        public string Name { get; set; }
-
-        public ExchangeAttribute(string name)
-        {
-            Name = name;
-        }
-    }
-}

Tapeti.Annotations/RequestAttribute.cs

@@ -1,6 +1,6 @@
 using System;
 
-namespace Tapeti.Flow.Annotations
+namespace Tapeti.Annotations
 {
     [AttributeUsage(AttributeTargets.Class)]
     public class RequestAttribute : Attribute

Tapeti.Flow.SQL/ConfigExtensions.cs

@@ -1,6 +1,8 @@
 using System.Collections.Generic;
 using Tapeti.Config;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti.Flow.SQL
 {
     public static class ConfigExtensions

Tapeti.Flow.SQL/SqlConnectionFlowRepository.cs

@@ -69,7 +69,7 @@ namespace Tapeti.Flow.SQL
 
         public Task CreateState<T>(Guid flowID, T state, DateTime timestamp)
         {
-            var stateJason = JsonConvert.SerializeObject(state);
+            //var stateJson = JsonConvert.SerializeObject(state);
 
             throw new NotImplementedException();
         }

Tapeti.Flow/Default/FlowBindingMiddleware.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Reflection;
 using System.Threading.Tasks;
+using Tapeti.Annotations;
 using Tapeti.Config;
 using Tapeti.Flow.Annotations;
 using Tapeti.Helpers;
@@ -59,8 +60,7 @@ namespace Tapeti.Flow.Default
 
         private static void RegisterYieldPointResult(IBindingContext context)
         {
-            bool isTaskOf;
+            if (!context.Result.Info.ParameterType.IsTypeOrTaskOf(typeof(IYieldPoint), out var isTaskOf))
-            if (!context.Result.Info.ParameterType.IsTypeOrTaskOf(typeof(IYieldPoint), out isTaskOf))
                 return;
 
             if (isTaskOf)
@@ -100,8 +100,7 @@ namespace Tapeti.Flow.Default
             if (request?.Response == null)
                 return;
 
-            bool isTaskOf;
+            if (!context.Result.Info.ParameterType.IsTypeOrTaskOf(t => t == request.Response || t == typeof(IYieldPoint), out _))
-            if (!context.Result.Info.ParameterType.IsTypeOrTaskOf(t => t == request.Response || t == typeof(IYieldPoint), out isTaskOf))
                 throw new ResponseExpectedException($"Response of class {request.Response.FullName} expected in controller {context.Method.DeclaringType?.FullName}, method {context.Method.Name}");
         }
     }

Tapeti.Flow/Default/FlowCleanupMiddleware.cs

@@ -1,8 +1,4 @@
-using System;
+using System.Threading.Tasks;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Tapeti.Config;
 
 namespace Tapeti.Flow.Default
@@ -11,8 +7,7 @@ namespace Tapeti.Flow.Default
     {
         public async Task Handle(IMessageContext context, HandlingResult handlingResult)
         {
-            object flowContextObj;
+            if (!context.Items.TryGetValue(ContextItems.FlowContext, out var flowContextObj))
-            if (!context.Items.TryGetValue(ContextItems.FlowContext, out flowContextObj))
                 return;
             var flowContext = (FlowContext)flowContextObj;
 

Tapeti.Flow/Default/FlowMessageFilterMiddleware.cs

@@ -28,8 +28,7 @@ namespace Tapeti.Flow.Default
             if (context.Properties.CorrelationId == null)
                 return null;
 
-            Guid continuationID;
+            if (!Guid.TryParse(context.Properties.CorrelationId, out var continuationID))
-            if (!Guid.TryParse(context.Properties.CorrelationId, out continuationID))
                 return null;
 
             var flowStore = context.DependencyResolver.Resolve<IFlowStore>();
@@ -44,8 +43,6 @@ namespace Tapeti.Flow.Default
             if (flowState == null)
                 return null;
 
-            ContinuationMetadata continuation;
-
             var flowContext = new FlowContext
             {
                 MessageContext = context,
@@ -54,7 +51,7 @@ namespace Tapeti.Flow.Default
                 FlowState = flowState,
 
                 ContinuationID = continuationID,
-                ContinuationMetadata = flowState.Continuations.TryGetValue(continuationID, out continuation) ? continuation : null
+                ContinuationMetadata = flowState.Continuations.TryGetValue(continuationID, out var continuation) ? continuation : null
             };
 
             // IDisposable items in the IMessageContext are automatically disposed

Tapeti.Flow/Default/FlowProvider.cs

@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Reflection;
 using System.Threading.Tasks;
 using RabbitMQ.Client.Framing;
+using Tapeti.Annotations;
 using Tapeti.Config;
 using Tapeti.Flow.Annotations;
 using Tapeti.Flow.FlowHelpers;
@@ -54,6 +56,8 @@ namespace Tapeti.Flow.Default
         private async Task SendRequest(FlowContext context, object message, ResponseHandlerInfo responseHandlerInfo, 
             string convergeMethodName = null, bool convergeMethodTaskSync = false)
         {
+            Debug.Assert(context.FlowState != null, "context.FlowState != null");
+
             if (context.FlowState == null)
             {
                 await CreateNewFlowState(context);
@@ -114,7 +118,7 @@ namespace Tapeti.Flow.Default
         {
             await context.Delete();
 
-            if (context.FlowState != null && context.FlowState.Metadata.Reply != null)
+            if (context.FlowState?.Metadata.Reply != null)
                 throw new YieldPointException($"Flow must end with a response message of type {context.FlowState.Metadata.Reply.ResponseTypeName}");
         }
 
@@ -179,15 +183,12 @@ namespace Tapeti.Flow.Default
 
         public async Task Execute(IMessageContext context, IYieldPoint yieldPoint)
         {
-            var executableYieldPoint = yieldPoint as DelegateYieldPoint;
+            if (!(yieldPoint is DelegateYieldPoint executableYieldPoint))
-
-            if (executableYieldPoint == null)
                 throw new YieldPointException($"Yield point is required in controller {context.Controller.GetType().Name} for method {context.Binding.Method.Name}");
 
             FlowContext flowContext;
-            object flowContextItem;
 
-            if (!context.Items.TryGetValue(ContextItems.FlowContext, out flowContextItem))
+            if (!context.Items.TryGetValue(ContextItems.FlowContext, out var flowContextItem))
             {
                 flowContext = new FlowContext
                 {
@@ -202,7 +203,6 @@ namespace Tapeti.Flow.Default
 
             try
             {
-                if (executableYieldPoint != null)
                 await executableYieldPoint.Execute(flowContext);
             }
             catch (YieldPointException e)

Tapeti.Flow/Default/FlowState.cs

@@ -12,16 +12,16 @@ namespace Tapeti.Flow.Default
 
         public FlowMetadata Metadata
         {
-            get { return metadata ?? (metadata = new FlowMetadata()); }
+            get => metadata ?? (metadata = new FlowMetadata());
-            set { metadata = value; }
+            set => metadata = value;
         }
 
         public string Data { get; set; }
 
         public Dictionary<Guid, ContinuationMetadata> Continuations
         {
-            get { return continuations ?? (continuations = new Dictionary<Guid, ContinuationMetadata>()); }
+            get => continuations ?? (continuations = new Dictionary<Guid, ContinuationMetadata>());
-            set { continuations = value; }
+            set => continuations = value;
         }
 
 

Tapeti.Flow/Default/FlowStore.cs

@@ -1,9 +1,7 @@
-using Newtonsoft.Json;
+using System;
-using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading;
 using System.Threading.Tasks;
 using Tapeti.Flow.FlowHelpers;
 
@@ -11,13 +9,13 @@ namespace Tapeti.Flow.Default
 {
     public class FlowStore : IFlowStore
     {
-        private readonly ConcurrentDictionary<Guid, FlowState> FlowStates = new ConcurrentDictionary<Guid, FlowState>();
+        private readonly ConcurrentDictionary<Guid, FlowState> flowStates = new ConcurrentDictionary<Guid, FlowState>();
-        private readonly ConcurrentDictionary<Guid, Guid> ContinuationLookup = new ConcurrentDictionary<Guid, Guid>();
+        private readonly ConcurrentDictionary<Guid, Guid> continuationLookup = new ConcurrentDictionary<Guid, Guid>();
-        private readonly LockCollection<Guid> Locks = new LockCollection<Guid>(EqualityComparer<Guid>.Default);
+        private readonly LockCollection<Guid> locks = new LockCollection<Guid>(EqualityComparer<Guid>.Default);
 
         private readonly IFlowRepository repository;
 
-        private volatile bool InUse = false;
+        private volatile bool inUse;
 
         public FlowStore(IFlowRepository repository) 
         {
@@ -27,36 +25,35 @@ namespace Tapeti.Flow.Default
 
         public async Task Load()
         {
-            if (InUse)
+            if (inUse)
                 throw new InvalidOperationException("Can only load the saved state once.");
 
-            InUse = true;
+            inUse = true;
 
-            FlowStates.Clear();
+            flowStates.Clear();
-            ContinuationLookup.Clear();
+            continuationLookup.Clear();
 
             foreach (var flowStateRecord in await repository.GetStates<FlowState>())
             {
-                FlowStates.TryAdd(flowStateRecord.Key, flowStateRecord.Value);
+                flowStates.TryAdd(flowStateRecord.Key, flowStateRecord.Value);
 
                 foreach (var continuation in flowStateRecord.Value.Continuations)
-                    ContinuationLookup.GetOrAdd(continuation.Key, flowStateRecord.Key);
+                    continuationLookup.GetOrAdd(continuation.Key, flowStateRecord.Key);
             }
         }
 
 
         public Task<Guid?> FindFlowID(Guid continuationID)
         {
-            Guid result;
+            return Task.FromResult(continuationLookup.TryGetValue(continuationID, out var result) ? result : (Guid?)null);
-            return Task.FromResult(ContinuationLookup.TryGetValue(continuationID, out result) ? result : (Guid?)null);
         }
 
 
         public async Task<IFlowStateLock> LockFlowState(Guid flowID)
         {
-            InUse = true;
+            inUse = true;
 
-            var flowStatelock = new FlowStateLock(this, flowID, await Locks.GetLock(flowID));
+            var flowStatelock = new FlowStateLock(this, flowID, await locks.GetLock(flowID));
             return flowStatelock;
         }
 
@@ -74,7 +71,7 @@ namespace Tapeti.Flow.Default
                 this.flowID = flowID;
                 this.flowLock = flowLock;
 
-                owner.FlowStates.TryGetValue(flowID, out flowState);
+                owner.flowStates.TryGetValue(flowID, out flowState);
             }
 
             public void Dispose()
@@ -106,20 +103,17 @@ namespace Tapeti.Flow.Default
                 if (flowState != null)
                 {
                     foreach (var removedContinuation in flowState.Continuations.Keys.Where(k => !newFlowState.Continuations.ContainsKey(k)))
-                    {
+                        owner.continuationLookup.TryRemove(removedContinuation, out _);
-                        Guid removedValue;
-                        owner.ContinuationLookup.TryRemove(removedContinuation, out removedValue);
-                    }
                 }
 
                 foreach (var addedContinuation in newFlowState.Continuations.Where(c => flowState == null || !flowState.Continuations.ContainsKey(c.Key)))
                 {
-                    owner.ContinuationLookup.TryAdd(addedContinuation.Key, flowID);
+                    owner.continuationLookup.TryAdd(addedContinuation.Key, flowID);
                 }
 
                 var isNew = flowState == null;
                 flowState = newFlowState;
-                owner.FlowStates[flowID] = newFlowState;
+                owner.flowStates[flowID] = newFlowState;
 
                 // Storing the flowstate in the underlying repository
                 if (isNew)
@@ -141,13 +135,9 @@ namespace Tapeti.Flow.Default
                 if (flowState != null)
                 {
                     foreach (var removedContinuation in flowState.Continuations.Keys)
-                    {
+                        owner.continuationLookup.TryRemove(removedContinuation, out _);
-                        Guid removedValue;
-                        owner.ContinuationLookup.TryRemove(removedContinuation, out removedValue);
-                    }
 
-                    FlowState removedFlow;
+                    owner.flowStates.TryRemove(flowID, out _);
-                    owner.FlowStates.TryRemove(flowID, out removedFlow);
 
                     if (flowState != null)
                     {

Tapeti.Flow/Default/NonPersistentFlowRepository.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading.Tasks;
 
 namespace Tapeti.Flow.Default

Tapeti.Flow/FlowHelpers/LockCollection.cs

@@ -1,7 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Threading.Tasks;
 
 namespace Tapeti.Flow.FlowHelpers
@@ -17,14 +15,14 @@ namespace Tapeti.Flow.FlowHelpers
 
         public Task<IDisposable> GetLock(T key)
         {
+            // ReSharper disable once InconsistentlySynchronizedField - by design
             LockItem nextLi = new LockItem(locks, key);
             try
             {
                 bool continueImmediately = false;
                 lock (locks)
                 {
-                    LockItem li;
+                    if (!locks.TryGetValue(key, out var li))
-                    if (!locks.TryGetValue(key, out li))
                     {
                         locks.Add(key, nextLi);
                         continueImmediately = true;
@@ -80,8 +78,7 @@ namespace Tapeti.Flow.FlowHelpers
             {
                 lock (locks)
                 {
-                    LockItem li;
+                    if (!locks.TryGetValue(key, out var li))
-                    if (!locks.TryGetValue(key, out li))
                         return;
 
                     if (li != this)

Tapeti.Flow/FlowMiddleware.cs

@@ -6,7 +6,7 @@ namespace Tapeti.Flow
 {
     public class FlowMiddleware : ITapetiExtension
     {
-        private IFlowRepository flowRepository;
+        private readonly IFlowRepository flowRepository;
 
         public FlowMiddleware(IFlowRepository flowRepository)
         {
@@ -18,7 +18,7 @@ namespace Tapeti.Flow
             container.RegisterDefault<IFlowProvider, FlowProvider>();
             container.RegisterDefault<IFlowStarter, FlowStarter>();
             container.RegisterDefault<IFlowHandler, FlowProvider>();
-            container.RegisterDefaultSingleton<IFlowRepository>(() => flowRepository ?? new NonPersistentFlowRepository());
+            container.RegisterDefaultSingleton(() => flowRepository ?? new NonPersistentFlowRepository());
             container.RegisterDefaultSingleton<IFlowStore, FlowStore>();
         }
 

Tapeti.Flow/IFlowProvider.cs

@@ -3,6 +3,8 @@ using System.Linq.Expressions;
 using System.Threading.Tasks;
 using Tapeti.Config;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti.Flow
 {
     public interface IFlowProvider

Tapeti.Flow/IFlowRepository.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading.Tasks;
 
 namespace Tapeti.Flow
@@ -12,13 +11,4 @@ namespace Tapeti.Flow
         Task UpdateState<T>(Guid flowID, T state);
         Task DeleteState(Guid flowID);
     }
-
-
-    public class FlowStateRecord
-    {
-        public Guid FlowID;
-        public string Metadata;
-        public string Data;
-        public Dictionary<Guid, string> ContinuationMetadata;
-    }
 }

Tapeti.Flow/IFlowStore.cs

@@ -1,8 +1,9 @@
 using System;
-using System.Collections.Generic;
 using System.Threading.Tasks;
 using Tapeti.Flow.Default;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti.Flow
 {
     public interface IFlowStore

Tapeti.Flow/YieldPointException.cs

@@ -5,6 +5,5 @@ namespace Tapeti.Flow
     public class YieldPointException : Exception
     {
         public YieldPointException(string message) : base(message) { }
-        public YieldPointException(string message, Exception innerException) : base(message, innerException) { }
     }
 }

Tapeti.Serilog/TapetiSeriLogger.cs

@@ -1,6 +1,8 @@
 using System;
 using ISeriLogger = Serilog.ILogger;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti.Serilog
 {
     public class TapetiSeriLogger: ILogger

Tapeti.Tests/ConnectionStringParser.cs

@@ -1,8 +1,7 @@
-using Tapeti;
+using Tapeti.Helpers;
-using Tapeti.Helpers;
 using Xunit;
 
-namespace Tapet.Tests
+namespace Tapeti.Tests
 {
     // ReSharper disable InconsistentNaming
     public class ConnectionStringParserTest
@@ -119,9 +118,7 @@ namespace Tapet.Tests
         [Fact]
         public void OnlySemicolons()
         {
-            AssertConnectionString(";;;", new TapetiConnectionParams
+            AssertConnectionString(";;;", new TapetiConnectionParams());
-            {
-            });
         }
 
         [Fact]
@@ -184,7 +181,8 @@ namespace Tapet.Tests
             });
         }
 
-        private void AssertConnectionString(string connectionstring, TapetiConnectionParams expected)
+        // ReSharper disable once ParameterOnlyUsedForPreconditionCheck.Local
+        private static void AssertConnectionString(string connectionstring, TapetiConnectionParams expected)
         {
             var parsed = ConnectionStringParser.Parse(connectionstring);
 

Tapeti.Tests/TypeNameRoutingKeyStrategyTests.cs

@@ -2,7 +2,7 @@
 using Tapeti.Default;
 using Xunit;
 
-namespace Tapet.Tests
+namespace Tapeti.Tests
 {
     // ReSharper disable InconsistentNaming
     public class TypeNameRoutingKeyStrategyTests

Tapeti.sln.DotSettings

@@ -0,0 +1,4 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=ID/@EntryIndexedValue">ID</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=KV/@EntryIndexedValue">KV</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateInstanceFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aaBb" /&gt;</s:String></wpf:ResourceDictionary>

Tapeti/Config/ICleanupMiddleware.cs

@@ -1,8 +1,4 @@
-using System;
+using System.Threading.Tasks;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Tapeti.Config
 {

Tapeti/Config/IExceptionStrategyContext.cs

@@ -1,8 +1,6 @@
 using System;
-using System.Collections.Generic;
+
-using System.Linq;
+// ReSharper disable UnusedMember.Global
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Tapeti.Config
 {

Tapeti/Config/IMessageContext.cs

@@ -2,6 +2,8 @@
 using System.Collections.Generic;
 using RabbitMQ.Client;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti.Config
 {
     public interface IMessageContext : IDisposable

Tapeti/Config/IPublishContext.cs

@@ -1,5 +1,7 @@
 using RabbitMQ.Client;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti.Config
 {
     public interface IPublishContext

Tapeti/Connection/IConnectionEventListener.cs

@@ -1,10 +1,4 @@
-using System;
+namespace Tapeti.Connection
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace Tapeti.Connection
 {
     public interface IConnectionEventListener
     {

Tapeti/Connection/TapetiConsumer.cs

@@ -5,7 +5,6 @@ using System.Runtime.ExceptionServices;
 using RabbitMQ.Client;
 using Tapeti.Config;
 using Tapeti.Default;
-using Tapeti.Helpers;
 using System.Threading.Tasks;
 
 namespace Tapeti.Connection
@@ -42,7 +41,6 @@ namespace Tapeti.Connection
         {
             Task.Run(async () =>
             {
-                ExceptionDispatchInfo exception = null;
                 MessageContext context = null;
                 HandlingResult handlingResult = null;
                 try
@@ -67,7 +65,7 @@ namespace Tapeti.Connection
                     }
                     catch (Exception eDispatch)
                     {
-                        exception = ExceptionDispatchInfo.Capture(UnwrapException(eDispatch));
+                        var exception = ExceptionDispatchInfo.Capture(UnwrapException(eDispatch));
                         logger.HandlerException(eDispatch);
                         try
                         {
@@ -119,10 +117,7 @@ namespace Tapeti.Connection
                     }
                     try
                     {
-                        if (context != null)
+                        context?.Dispose();
-                        {
-                            context.Dispose();
-                        }
                     }
                     catch (Exception eDispose)
                     {
@@ -178,25 +173,25 @@ namespace Tapeti.Connection
             RecursiveCaller firstCaller = null;
             RecursiveCaller currentCaller = null;
 
-            Action<Handler> addHandler = (Handler handle) =>
+            void AddHandler(Handler handle)
             {
                 var caller = new RecursiveCaller(handle);
                 if (currentCaller == null)
                     firstCaller = caller;
                 else
-                    currentCaller.next = caller;
+                    currentCaller.Next = caller;
                 currentCaller = caller;
-            };
+            }
 
             if (binding.MessageFilterMiddleware != null)
             {
                 foreach (var m in binding.MessageFilterMiddleware)
                 {
-                    addHandler(m.Handle);
+                    AddHandler(m.Handle);
                 }
             }
 
-            addHandler(async (c, next) =>
+            AddHandler(async (c, next) =>
             {
                 c.Controller = dependencyResolver.Resolve(binding.Controller);
                 await next();
@@ -204,18 +199,18 @@ namespace Tapeti.Connection
 
             foreach (var m in messageMiddleware)
             {
-                addHandler(m.Handle);
+                AddHandler(m.Handle);
             }
 
             if (binding.MessageMiddleware != null)
             {
                 foreach (var m in binding.MessageMiddleware)
                 {
-                    addHandler(m.Handle);
+                    AddHandler(m.Handle);
                 }
             }
 
-            addHandler(async (c, next) =>
+            AddHandler(async (c, next) =>
             {
                 await binding.Invoke(c, message);
             });
@@ -244,10 +239,11 @@ namespace Tapeti.Connection
 
     public class RecursiveCaller
     {
-        private Handler handle;
+        private readonly Handler handle;
         private MessageContext currentContext;
         private MessageContext nextContext;
-        public RecursiveCaller next;
+
+        public RecursiveCaller Next;
 
         public RecursiveCaller(Handler handle)
         {
@@ -263,9 +259,9 @@ namespace Tapeti.Connection
             {
                 currentContext = context;
 
-                context.UseNestedContext = next == null ? (Action<MessageContext>)null : UseNestedContext;
+                context.UseNestedContext = Next == null ? (Action<MessageContext>)null : UseNestedContext;
 
-                await handle(context, callNext);
+                await handle(context, CallNext);
             }
             finally
             {
@@ -273,18 +269,18 @@ namespace Tapeti.Connection
             }
         }
 
-        private async Task callNext()
+        private async Task CallNext()
         {
-            if (next == null)
+            if (Next == null)
                 return;
             if (nextContext != null)
             {
-                await next.Call(nextContext);
+                await Next.Call(nextContext);
             }else
             {
                 try
                 {
-                    await next.Call(currentContext);
+                    await Next.Call(currentContext);
                 }
                 finally
                 {

Tapeti/Connection/TapetiWorker.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading.Tasks;
 using RabbitMQ.Client;
 using RabbitMQ.Client.Exceptions;

Tapeti/Default/ConsoleLogger.cs

@@ -6,17 +6,17 @@ namespace Tapeti.Default
     {
         public void Connect(TapetiConnectionParams connectionParams)
         {
-            throw new System.NotImplementedException();
+            throw new NotImplementedException();
         }
 
         public void ConnectFailed(TapetiConnectionParams connectionParams)
         {
-            throw new System.NotImplementedException();
+            throw new NotImplementedException();
         }
 
         public void ConnectSuccess(TapetiConnectionParams connectionParams)
         {
-            throw new System.NotImplementedException();
+            throw new NotImplementedException();
         }
 
         public void HandlerException(Exception e)

Tapeti/Default/ExceptionStrategyContext.cs

@@ -1,8 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Tapeti.Config;
 
 namespace Tapeti.Default
@@ -22,19 +18,8 @@ namespace Tapeti.Default
         private HandlingResultBuilder handlingResult;
         public HandlingResultBuilder HandlingResult
         {
-            get
+            get => handlingResult ?? (handlingResult = new HandlingResultBuilder());
-            {
+            set => handlingResult = value;
-                if (handlingResult == null)
-                {
-                    handlingResult = new HandlingResultBuilder();
-                }
-                return handlingResult;
-            }
-
-            set
-            {
-                handlingResult = value;
-            }
         }
     }
 }

Tapeti/Default/JsonMessageSerializer.cs

@@ -45,12 +45,10 @@ namespace Tapeti.Default
 
         public object Deserialize(byte[] body, IBasicProperties properties)
         {
-            object typeName;
-
             if (properties.ContentType == null || !properties.ContentType.Equals(ContentType))
                 throw new ArgumentException($"content_type must be {ContentType}");
 
-            if (properties.Headers == null || !properties.Headers.TryGetValue(ClassTypeHeader, out typeName))
+            if (properties.Headers == null || !properties.Headers.TryGetValue(ClassTypeHeader, out var typeName))
                 throw new ArgumentException($"{ClassTypeHeader} header not present");
 
             var messageType = deserializedTypeNames.GetOrAdd(Encoding.UTF8.GetString((byte[])typeName), DeserializeTypeName);

Tapeti/Default/MessageContext.cs

@@ -21,7 +21,6 @@ namespace Tapeti.Default
 
         public IDictionary<string, object> Items { get; }
 
-        private readonly MessageContext outerContext;
         internal Action<MessageContext> UseNestedContext;
         internal Action<MessageContext> OnContextDisposed;
 
@@ -43,8 +42,6 @@ namespace Tapeti.Default
             Properties = outerContext.Properties;
 
             Items = new DeferingDictionary(outerContext.Items);
-
-            this.outerContext = outerContext;
         }
 
         public void Dispose()
@@ -71,8 +68,8 @@ namespace Tapeti.Default
 
         private class DeferingDictionary : IDictionary<string, object>
         {
-            private IDictionary<string, object> myState;
+            private readonly IDictionary<string, object> myState;
-            private IDictionary<string, object> deferee;
+            private readonly IDictionary<string, object> deferee;
 
             public DeferingDictionary(IDictionary<string, object> deferee)
             {
@@ -84,10 +81,7 @@ namespace Tapeti.Default
 
             object IDictionary<string, object>.this[string key]
             {
-                get
+                get => myState.ContainsKey(key) ? myState[key] : deferee[key];
-                {
-                    return myState.ContainsKey(key) ? myState[key] : deferee[key];
-                }
 
                 set
                 {
@@ -98,37 +92,10 @@ namespace Tapeti.Default
                 }
             }
 
-            int ICollection<KeyValuePair<string, object>>.Count
+            int ICollection<KeyValuePair<string, object>>.Count => myState.Count + deferee.Count;
-            {
+            bool ICollection<KeyValuePair<string, object>>.IsReadOnly => false;
-                get
+            ICollection<string> IDictionary<string, object>.Keys => myState.Keys.Concat(deferee.Keys).ToList().AsReadOnly();
-                {
+            ICollection<object> IDictionary<string, object>.Values => myState.Values.Concat(deferee.Values).ToList().AsReadOnly();
-                    return myState.Count + deferee.Count;
-                }
-            }
-
-            bool ICollection<KeyValuePair<string, object>>.IsReadOnly
-            {
-                get
-                {
-                    return false;
-                }
-            }
-
-            ICollection<string> IDictionary<string, object>.Keys
-            {
-                get
-                {
-                    return myState.Keys.Concat(deferee.Keys).ToList().AsReadOnly();
-                }
-            }
-
-            ICollection<object> IDictionary<string, object>.Values
-            {
-                get
-                {
-                    return myState.Values.Concat(deferee.Values).ToList().AsReadOnly();
-                }
-            }
 
             void ICollection<KeyValuePair<string, object>>.Add(KeyValuePair<string, object> item)
             {

Tapeti/Default/NackExceptionStrategy.cs

@@ -1,9 +1,4 @@
-using System;
+using Tapeti.Config;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Tapeti.Config;
 
 namespace Tapeti.Default
 {

Tapeti/Default/PublishResultBinding.cs

@@ -1,5 +1,5 @@
 using System;
-using System.Linq.Expressions;
+using System.Diagnostics;
 using System.Reflection;
 using System.Threading.Tasks;
 using RabbitMQ.Client.Framing;
@@ -18,15 +18,14 @@ namespace Tapeti.Default
                 return;
 
 
-            bool isTaskOf;
+            if (!context.Result.Info.ParameterType.IsTypeOrTaskOf(t => t.IsClass, out var isTaskOf, out var actualType))
-            Type actualType;
-            if (!context.Result.Info.ParameterType.IsTypeOrTaskOf(t => t.IsClass, out isTaskOf, out actualType))
                 return;
 
 
             if (isTaskOf)
             {
-                var handler = GetType().GetMethod("PublishGenericTaskResult", BindingFlags.NonPublic | BindingFlags.Static).MakeGenericMethod(actualType);
+                var handler = GetType().GetMethod("PublishGenericTaskResult", BindingFlags.NonPublic | BindingFlags.Static)?.MakeGenericMethod(actualType);
+                Debug.Assert(handler != null, nameof(handler) + " != null");
 
                 context.Result.SetHandler(async (messageContext, value) =>
                 {
@@ -54,13 +53,5 @@ namespace Tapeti.Default
 
             return publisher.Publish(message, properties);
         }
-
-
-        private static async Task PublishGenericTaskResult<T>(IMessageContext messageContext, object value) where T : class
-        {
-            var message = await (Task<T>)value;
-            if (message != null)
-                await Reply(message, messageContext);
-        }
     }
 }

Tapeti/Default/RequeueExceptionStrategy.cs

@@ -1,5 +1,6 @@
-using System;
+using Tapeti.Config;
-using Tapeti.Config;
+
+// ReSharper disable UnusedMember.Global
 
 namespace Tapeti.Default
 {

Tapeti/Default/TypeNameRoutingKeyStrategy.cs

@@ -2,7 +2,6 @@
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Text.RegularExpressions;
 
 namespace Tapeti.Default

Tapeti/HandlingResult.cs

@@ -1,8 +1,4 @@
-using System;
+// ReSharper disable UnusedMember.Global
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Tapeti
 {
@@ -34,26 +30,14 @@ namespace Tapeti
         private HandlingResult data = Default;
 
         public ConsumeResponse ConsumeResponse {
-            get
+            get => data.ConsumeResponse;
-            {
+            set => GetWritableData().ConsumeResponse = value;
-                return data.ConsumeResponse;
-            }
-            set
-            {
-                GetWritableData().ConsumeResponse = value;
-            }
         }
 
         public MessageAction MessageAction
         {
-            get
+            get => data.MessageAction;
-            {
+            set => GetWritableData().MessageAction = value;
-                return data.MessageAction;
-            }
-            set
-            {
-                GetWritableData().MessageAction = value;
-            }
         }
 
         public HandlingResult ToHandlingResult()

Tapeti/Helpers/ConnectionstringParser.cs

@@ -1,18 +1,14 @@
-using System;
+using System.Text;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Tapeti.Helpers
 {
     public class ConnectionStringParser
     {
-        readonly TapetiConnectionParams result = new TapetiConnectionParams();
+        private readonly TapetiConnectionParams result = new TapetiConnectionParams();
 
-        readonly string connectionstring;
+        private readonly string connectionstring;
-        int pos = -1;
+        private int pos = -1;
-        char current = '\0';
+        private char current = '\0';
 
         public static TapetiConnectionParams Parse(string connectionstring)
         {
@@ -33,16 +29,12 @@ namespace Tapeti.Helpers
         {
             var key = ParseKey();
 
-            if (current == '=')
+            if (current != '=')
-            {
+                return;
+
             var value = ParseValue();
             SetValue(key, value);
         }
-            else
-            {
-                EnableKey(key);
-            }
-        }
 
         private string ParseKey()
         {
@@ -112,11 +104,6 @@ namespace Tapeti.Helpers
             return false;
         }
 
-        private void EnableKey(string key)
-        {
-
-        }
-
         private void SetValue(string key, string value)
         {
             switch (key.ToLowerInvariant()) {

Tapeti/Helpers/MiddlewareHelper.cs

@@ -15,18 +15,16 @@ namespace Tapeti.Helpers
                 return;
             }
 
-            Action handleNext = null;
+            void HandleNext()
-
-            handleNext = () =>
             {
                 handlerIndex--;
                 if (handlerIndex >= 0)
-                    handle(middleware[handlerIndex], handleNext);
+                    handle(middleware[handlerIndex], HandleNext);
                 else
                     lastHandler();
-            };
+            }
 
-            handle(middleware[handlerIndex], handleNext);
+            handle(middleware[handlerIndex], HandleNext);
         }
 
 
@@ -39,18 +37,16 @@ namespace Tapeti.Helpers
                 return;
             }
 
-            Func<Task> handleNext = null;
+            async Task HandleNext()
-
-            handleNext = async () =>
             {
                 handlerIndex--;
                 if (handlerIndex >= 0)
-                    await handle(middleware[handlerIndex], handleNext);
+                    await handle(middleware[handlerIndex], HandleNext);
                 else
                     await lastHandler();
-            };
+            }
 
-            await handle(middleware[handlerIndex], handleNext);
+            await handle(middleware[handlerIndex], HandleNext);
         }
     }
 }

Tapeti/Helpers/TaskTypeHelper.cs

@@ -34,8 +34,7 @@ namespace Tapeti.Helpers
 
         public static bool IsTypeOrTaskOf(this Type type, Func<Type, bool> predicate, out bool isTaskOf)
         {
-            Type actualType;
+            return IsTypeOrTaskOf(type, predicate, out isTaskOf, out _);
-            return IsTypeOrTaskOf(type, predicate, out isTaskOf, out actualType);
         }
 
         public static bool IsTypeOrTaskOf(this Type type, Type compareTo, out bool isTaskOf)

Tapeti/IConnection.cs

@@ -1,6 +1,8 @@
 using System;
 using System.Threading.Tasks;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti
 {
     public interface IConnection : IDisposable

Tapeti/IExceptionStrategy.cs

@@ -1,5 +1,4 @@
-using System;
+using Tapeti.Config;
-using Tapeti.Config;
 
 namespace Tapeti
 {

Tapeti/ILogger.cs

@@ -1,5 +1,7 @@
 using System;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti
 {
     // This interface is deliberately specific and typed to allow for structured logging (e.g. Serilog)

Tapeti/MessageController.cs

@@ -1,5 +1,7 @@
 using Tapeti.Annotations;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti
 {
     /// <summary>

Tapeti/MessageFutureAction.cs

@@ -1,8 +1,4 @@
-using System;
+// ReSharper disable UnusedMember.Global
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Tapeti
 {

Tapeti/TapetiAppSettingsConnectionParams.cs

@@ -18,19 +18,19 @@ namespace Tapeti
         public TapetiAppSettingsConnectionParams(string prefix = DefaultPrefix)
         {
             var keys = ConfigurationManager.AppSettings.AllKeys;
-            Action<string, Action<string>> getAppSetting = (key, setValue) =>
+
+            void GetAppSetting(string key, Action<string> setValue)
             {
-                if (keys.Contains(prefix + key))
+                if (keys.Contains(prefix + key)) setValue(ConfigurationManager.AppSettings[prefix + key]);
-                    setValue(ConfigurationManager.AppSettings[prefix + key]);
+            }
-            };
 
 
-            getAppSetting(KeyHostname, value => HostName = value);
+            GetAppSetting(KeyHostname, value => HostName = value);
-            getAppSetting(KeyPort, value => Port = int.Parse(value));
+            GetAppSetting(KeyPort, value => Port = int.Parse(value));
-            getAppSetting(KeyVirtualHost, value => VirtualHost = value);
+            GetAppSetting(KeyVirtualHost, value => VirtualHost = value);
-            getAppSetting(KeyUsername, value => Username = value);
+            GetAppSetting(KeyUsername, value => Username = value);
-            getAppSetting(KeyPassword, value => Password = value);
+            GetAppSetting(KeyPassword, value => Password = value);
-            getAppSetting(KeyPrefetchCount, value => PrefetchCount = ushort.Parse(value));
+            GetAppSetting(KeyPrefetchCount, value => PrefetchCount = ushort.Parse(value));
         }
     }
 }

Tapeti/TapetiConfig.cs

@@ -127,8 +127,7 @@ namespace Tapeti
 
         public TapetiConfig Use(ITapetiExtension extension)
         {
-            var container = dependencyResolver as IDependencyContainer;
+            if (dependencyResolver is IDependencyContainer container)
-            if (container != null)
                 extension.RegisterDefaults(container);
 
             var middlewareBundle = extension.GetMiddleware(dependencyResolver);
@@ -139,14 +138,14 @@ namespace Tapeti
                 foreach (var middleware in middlewareBundle)
                 {
                     // ReSharper disable once CanBeReplacedWithTryCastAndCheckForNull
-                    if (middleware is IBindingMiddleware)
+                    if (middleware is IBindingMiddleware bindingExtension)
-                        Use((IBindingMiddleware)middleware);
+                        Use(bindingExtension);
-                    else if (middleware is IMessageMiddleware)
+                    else if (middleware is IMessageMiddleware messageExtension)
-                        Use((IMessageMiddleware)middleware);
+                        Use(messageExtension);
-                    else if (middleware is ICleanupMiddleware)
+                    else if (middleware is ICleanupMiddleware cleanupExtension)
-                        Use((ICleanupMiddleware)middleware);
+                        Use(cleanupExtension);
-                    else if (middleware is IPublishMiddleware)
+                    else if (middleware is IPublishMiddleware publishExtension)
-                        Use((IPublishMiddleware)middleware);
+                        Use(publishExtension);
                     else
                         throw new ArgumentException($"Unsupported middleware implementation: {(middleware == null ? "null" : middleware.GetType().Name)}");
                 }
@@ -181,7 +180,7 @@ namespace Tapeti
             (dependencyResolver as IDependencyContainer)?.RegisterController(controller);
 
             foreach (var method in controller.GetMembers(BindingFlags.Public | BindingFlags.Instance)
-                .Where(m => m.MemberType == MemberTypes.Method && m.DeclaringType != typeof(object) && !(m as MethodInfo).IsSpecialName)
+                .Where(m => m.MemberType == MemberTypes.Method && m.DeclaringType != typeof(object) && (m as MethodInfo)?.IsSpecialName == false)
                 .Select(m => (MethodInfo)m))
             {
                 var context = new BindingContext(method);
@@ -423,8 +422,7 @@ namespace Tapeti
 
             public IBinding GetBinding(Delegate method)
             {
-                IBinding binding;
+                return bindingMethodLookup.TryGetValue(method.Method, out var binding) ? binding : null;
-                return bindingMethodLookup.TryGetValue(method.Method, out binding) ? binding : null;
             }
         }
 
@@ -465,7 +463,7 @@ namespace Tapeti
             private QueueInfo queueInfo;
             public QueueInfo QueueInfo
             {
-                get { return queueInfo; }
+                get => queueInfo;
                 set
                 {
                     QueueName = (value?.Dynamic).GetValueOrDefault() ? value?.Name : null;

Tapeti/TapetiConnection.cs

@@ -4,6 +4,8 @@ using System.Threading.Tasks;
 using Tapeti.Config;
 using Tapeti.Connection;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti
 {
     public class TapetiConnection : IDisposable

Tapeti/TapetiConnectionParams.cs

@@ -1,5 +1,7 @@
 using System;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Tapeti
 {
     public class TapetiConnectionParams

Test/FlowEndController.cs

@@ -3,6 +3,8 @@ using Tapeti.Annotations;
 using Tapeti.Flow;
 using Tapeti.Flow.Annotations;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Test
 {
     [MessageController]

Test/MarcoController.cs

@@ -1,31 +1,32 @@
 using System;
 using System.ComponentModel.DataAnnotations;
 using System.Threading.Tasks;
-using Tapeti;
 using Tapeti.Annotations;
 using Tapeti.Flow;
 using Tapeti.Flow.Annotations;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Test
 {
     [MessageController]
     [DynamicQueue]
     public class MarcoController
     {
-        private readonly IPublisher publisher;
+        //private readonly IPublisher publisher;
         private readonly IFlowProvider flowProvider;
-        private readonly Visualizer visualizer;
+        //private readonly Visualizer visualizer;
 
         // Public properties are automatically stored and retrieved while in a flow
         public Guid StateTestGuid { get; set; }
 
         public int Phase;
 
-        public MarcoController(IPublisher publisher, IFlowProvider flowProvider, Visualizer visualizer)
+        public MarcoController(/*IPublisher publisher, */IFlowProvider flowProvider/*, Visualizer visualizer*/)
         {
-            this.publisher = publisher;
+            //this.publisher = publisher;
             this.flowProvider = flowProvider;
-            this.visualizer = visualizer;
+            //this.visualizer = visualizer;
         }
 
 

Test/MarcoEmitter.cs

@@ -1,18 +1,17 @@
-using System.Threading;
+using System.Threading.Tasks;
-using System.Threading.Tasks;
-using Tapeti;
 
 namespace Test
 {
     public class MarcoEmitter
     {
-        private readonly IPublisher publisher;
+        //private readonly IPublisher publisher;
 
 
-        public MarcoEmitter(IPublisher publisher)
+        /*public MarcoEmitter(IPublisher publisher)
         {
             this.publisher = publisher;
         }
+        */
 
 
         public async Task Run()
@@ -45,6 +44,7 @@ namespace Test
             {
                 await Task.Delay(1000);
             }
+            // ReSharper disable once FunctionNeverReturns
         }
     }
 }

Test/MyLogger.cs

@@ -1,10 +1,8 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Tapeti;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Test
 {
     public class MyLogger : ILogger

Test/Program.cs

@@ -1,11 +1,8 @@
 using System;
-using System.Threading.Tasks;
 using SimpleInjector;
 using Tapeti;
 using Tapeti.DataAnnotations;
 using Tapeti.Flow;
-using Tapeti.Flow.SQL;
-using Tapeti.Helpers;
 using Tapeti.SimpleInjector;
 using System.Threading;
 

Test/Visualizer.cs

@@ -1,6 +1,8 @@
 using System;
 using System.Threading.Tasks;
 
+// ReSharper disable UnusedMember.Global
+
 namespace Test
 {
     public class Visualizer