fix IDE informations

Author: nogic1008

src/MicroBatchFramework.WebHosting/BatchEngineMiddleware.cs

@@ -1,4 +1,4 @@
-using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
@@ -115,7 +115,7 @@ public async Task Invoke(HttpContext httpContext)
             }
 
             // create args
-            string[] args = null;
+            string[] args;
             try
             {
                 if (httpContext.Request.HasFormContentType)

src/MicroBatchFramework.WebHosting/BatchEngineSwaggerMiddleware.cs

@@ -9,8 +9,6 @@ namespace MicroBatchFramework.WebHosting
 {
     public class BatchEngineSwaggerMiddleware
     {
-        private static readonly Task EmptyTask = Task.FromResult(0);
-
         private readonly RequestDelegate next;
         private readonly MethodInfo[] handlers;
         private readonly SwaggerOptions options;

src/MicroBatchFramework.WebHosting/Swagger/SwaggerDefinitionBuilder.cs

@@ -1,4 +1,4 @@
-using MicroBatchFramework.WebHosting.Swagger.Schemas;
+using MicroBatchFramework.WebHosting.Swagger.Schemas;
 using Microsoft.AspNetCore.Http;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Serialization;
@@ -44,13 +44,15 @@ public byte[] BuildSwaggerJson()
                         : null;
                 }
 
-                var doc = new SwaggerDocument();
-                doc.info = options.Info;
-                doc.host = (options.CustomHost != null) ? options.CustomHost(httpContext) : httpContext.Request.Headers["Host"][0];
-                doc.basePath = options.ApiBasePath;
-                doc.schemes = (options.ForceSchemas.Length == 0) ? new[] { httpContext.Request.IsHttps ? "https" : httpContext.Request.Scheme } : options.ForceSchemas;
-                doc.paths = new Dictionary<string, PathItem>();
-                doc.definitions = new Dictionary<string, Schema>();
+                var doc = new SwaggerDocument
+                {
+                    info = options.Info,
+                    host = (options.CustomHost != null) ? options.CustomHost(httpContext) : httpContext.Request.Headers["Host"][0],
+                    basePath = options.ApiBasePath,
+                    schemes = (options.ForceSchemas.Length == 0) ? new[] { httpContext.Request.IsHttps ? "https" : httpContext.Request.Scheme } : options.ForceSchemas,
+                    paths = new Dictionary<string, PathItem>(),
+                    definitions = new Dictionary<string, Schema>()
+                };
 
                 // tags.
                 var xmlServiceName = (xDocLookup != null)
@@ -203,8 +205,7 @@ string BuildSchema(IDictionary<string, Schema> definitions, Type type)
             var fullName = type.FullName;
             if (fullName == null) return ""; // safety(TODO:IDictionary<> is not supported)
 
-            Schema schema;
-            if (definitions.TryGetValue(fullName, out schema)) return "#/definitions/" + fullName;
+            if (definitions.TryGetValue(fullName, out Schema schema)) return "#/definitions/" + fullName;
 
             var properties = type.GetProperties(BindingFlags.Instance | BindingFlags.Public);
             var fields = type.GetFields(BindingFlags.Instance | BindingFlags.Public);

src/MicroBatchFramework/BatchEngine.cs

@@ -1,4 +1,4 @@
-using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
@@ -118,9 +118,8 @@ public async Task RunAsync(Type type, string[] args)
 
         async Task RunCore(BatchContext ctx, Type type, MethodInfo methodInfo, string[] args, int argsOffset)
         {
-            object instance = null;
-            object[] invokeArgs = null;
-
+            object instance;
+            object[] invokeArgs;
             try
             {
                 if (!TryGetInvokeArguments(methodInfo.GetParameters(), args, argsOffset, out invokeArgs, out var errorMessage))