From eb379b6f76ea3bf43aff17fbc28e17657e41e332 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Mon, 24 Jul 2017 15:37:13 +0900
Subject: [PATCH] [Modify] Throw exceptions

---
 websocket-sharp/WebSocket.cs | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/websocket-sharp/WebSocket.cs b/websocket-sharp/WebSocket.cs
index 3c23ec6c..202da89d 100644
--- a/websocket-sharp/WebSocket.cs
+++ b/websocket-sharp/WebSocket.cs
@@ -2501,12 +2501,14 @@ namespace WebSocketSharp
     /// </param>
     public void Close (CloseStatusCode code)
     {
-      string msg;
-      if (!CheckParametersForClose (code, null, _client, out msg)) {
-        _logger.Error (msg);
-        error ("An error has occurred in closing the connection.", null);
+      if (_client && code == CloseStatusCode.ServerError) {
+        var msg = "ServerError cannot be used.";
+        throw new ArgumentException (msg, "code");
+      }
 
-        return;
+      if (!_client && code == CloseStatusCode.MandatoryExtension) {
+        var msg = "MandatoryExtension cannot be used.";
+        throw new ArgumentException (msg, "code");
       }
 
       close ((ushort) code, String.Empty);