Use nameof operator

Author: henkmollema

src/Microsoft.AspNet.Http.Abstractions/Extensions/MapExtensions.cs

@@ -22,7 +22,7 @@ public static IApplicationBuilder Map([NotNull] this IApplicationBuilder app, Pa
         {
             if (pathMatch.HasValue && pathMatch.Value.EndsWith("/", StringComparison.Ordinal))
             {
-                throw new ArgumentException("The path must not end with a '/'", "pathMatch");
+                throw new ArgumentException("The path must not end with a '/'", nameof(pathMatch));
             }
 
             // create branch

src/Microsoft.AspNet.Http.Abstractions/FragmentString.cs

@@ -27,7 +27,7 @@ public FragmentString(string value)
         {
             if (!string.IsNullOrEmpty(value) && value[0] != '#')
             {
-                throw new ArgumentException("The leading '#' must be included for a non-empty fragment.", "value");
+                throw new ArgumentException("The leading '#' must be included for a non-empty fragment.", nameof(value));
             }
             _value = value;
         }

src/Microsoft.AspNet.Http.Abstractions/PathString.cs

@@ -29,7 +29,7 @@ public PathString(string value)
         {
             if (!String.IsNullOrEmpty(value) && value[0] != '/')
             {
-                throw new ArgumentException(""/*Resources.Exception_PathMustStartWithSlash*/, "value");
+                throw new ArgumentException(""/*Resources.Exception_PathMustStartWithSlash*/, nameof(value));
             }
             _value = value;
         }

src/Microsoft.AspNet.Http.Abstractions/QueryString.cs

@@ -30,7 +30,7 @@ public QueryString(string value)
         {
             if (!string.IsNullOrEmpty(value) && value[0] != '?')
             {
-                throw new ArgumentException("The leading '?' must be included for a non-empty query.", "value");
+                throw new ArgumentException("The leading '?' must be included for a non-empty query.", nameof(value));
             }
             _value = value;
         }

src/Microsoft.AspNet.Http/ReferenceReadStream.cs

@@ -57,7 +57,7 @@ public override long Position
                 ThrowIfDisposed();
                 if (value < 0 || value > Length)
                 {
-                    throw new ArgumentOutOfRangeException("value", value, "The Position must be within the length of the Stream: " + Length);
+                    throw new ArgumentOutOfRangeException(nameof(value), value, "The Position must be within the length of the Stream: " + Length);
                 }
                 VerifyPosition();
                 _position = value;

src/Microsoft.AspNet.Owin/OwinEnvironment.cs

@@ -37,11 +37,11 @@ public OwinEnvironment(HttpContext context)
         {
             if (context.GetFeature<IHttpRequestFeature>() == null)
             {
-                throw new ArgumentException("Missing required feature: " + nameof(IHttpRequestFeature) + ".", "context");
+                throw new ArgumentException("Missing required feature: " + nameof(IHttpRequestFeature) + ".", nameof(context));
             }
             if (context.GetFeature<IHttpResponseFeature>() == null)
             {
-                throw new ArgumentException("Missing required feature: " + nameof(IHttpResponseFeature) + ".", "context");
+                throw new ArgumentException("Missing required feature: " + nameof(IHttpResponseFeature) + ".", nameof(context));
             }
 
             _context = context;

src/Microsoft.AspNet.Owin/OwinFeatureCollection.cs

@@ -411,7 +411,7 @@ public void CopyTo([NotNull] KeyValuePair<Type, object>[] array, int arrayIndex)
         {
             if (arrayIndex < 0 || arrayIndex > array.Length)
             {
-                throw new ArgumentOutOfRangeException("arrayIndex", arrayIndex, string.Empty);
+                throw new ArgumentOutOfRangeException(nameof(arrayIndex), arrayIndex, string.Empty);
             }
             var keys = Keys;
             if (keys.Count > array.Length - arrayIndex)

src/Microsoft.AspNet.Owin/WebSockets/OwinWebSocketAdapter.cs

@@ -169,7 +169,7 @@ private static WebSocketMessageType OpCodeToEnum(int messageType)
                 case 0x8:
                     return WebSocketMessageType.Close;
                 default:
-                    throw new ArgumentOutOfRangeException("messageType", messageType, string.Empty);
+                    throw new ArgumentOutOfRangeException(nameof(messageType), messageType, string.Empty);
             }
         }
 
@@ -184,7 +184,7 @@ private static int EnumToOpCode(WebSocketMessageType webSocketMessageType)
                 case WebSocketMessageType.Close:
                     return 0x8;
                 default:
-                    throw new ArgumentOutOfRangeException("webSocketMessageType", webSocketMessageType, string.Empty);
+                    throw new ArgumentOutOfRangeException(nameof(webSocketMessageType), webSocketMessageType, string.Empty);
             }
         }
     }

src/Microsoft.AspNet.WebUtilities/BufferedReadStream.cs

@@ -64,7 +64,7 @@ public override long Position
             {
                 if (value < 0)
                 {
-                    throw new ArgumentOutOfRangeException("value", value, "Position must be positive.");
+                    throw new ArgumentOutOfRangeException(nameof(value), value, "Position must be positive.");
                 }
                 if (value == Position)
                 {

src/Microsoft.AspNet.WebUtilities/MultipartReaderStream.cs

@@ -70,11 +70,11 @@ public override long Position
             {
                 if (value < 0)
                 {
-                    throw new ArgumentOutOfRangeException("value", value, "The Position must be positive.");
+                    throw new ArgumentOutOfRangeException(nameof(value), value, "The Position must be positive.");
                 }
                 if (value > _observedLength)
                 {
-                    throw new ArgumentOutOfRangeException("value", value, "The Position must be less than length.");
+                    throw new ArgumentOutOfRangeException(nameof(value), value, "The Position must be less than length.");
                 }
                 _position = value;
                 if (_position < _observedLength)