svn commit: r902903 [6/14] - in /websites/staging/thrift/trunk/content: ./ tutorial/

[bu...@apache.org]

Modified: websites/staging/thrift/trunk/content/tutorial/go.html
==============================================================================
--- websites/staging/thrift/trunk/content/tutorial/go.html (original)
+++ websites/staging/thrift/trunk/content/tutorial/go.html Sat Mar 22 17:44:08 2014
@@ -91,121 +91,126 @@
 <li>The GOPATH may need to be adjusted, alternatively manually put the Go Thrift library files into a suitable location.</li>
 </ul>
 <h3 id="client">Client</h3>
-<p><div class="codehilite"><pre><span class="n">import</span> <span class="p">(</span>
-    <span class="s">&quot;crypto/tls&quot;</span>
-    <span class="s">&quot;fmt&quot;</span>
-    <span class="s">&quot;git.apache.org/thrift.git/lib/go/thrift&quot;</span>
-    <span class="s">&quot;tutorial&quot;</span>
-<span class="p">)</span></p>
-<p><span class="n">func</span> <span class="n">handleClient</span><span class="p">(</span><span class="n">client</span> <span class="o">*</span><span class="n">tutorial</span><span class="p">.</span><span class="n">CalculatorClient</span><span class="p">)</span> <span class="p">(</span><span class="n">err</span> <span class="n">error</span><span class="p">)</span> <span class="p">{</span>
+<div class="codehilite"><pre>  <span class="p">:::</span><span class="n">cpp</span>
+<span class="n">import</span> <span class="p">(</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">crypto</span><span class="o">/</span><span class="n">tls</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">fmt</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">git</span><span class="p">.</span><span class="n">apache</span><span class="p">.</span><span class="n">org</span><span class="o">/</span><span class="n">thrift</span><span class="p">.</span><span class="n">git</span><span class="o">/</span><span class="n">lib</span><span class="o">/</span><span class="n">go</span><span class="o">/</span><span class="n">thrift</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">tutorial</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+<span class="p">)</span>
+
+<span class="n">func</span> <span class="n">handleClient</span><span class="p">(</span><span class="n">client</span> <span class="o">*</span><span class="n">tutorial</span><span class="p">.</span><span class="n">CalculatorClient</span><span class="p">)</span> <span class="p">(</span><span class="n">err</span> <span class="n">error</span><span class="p">)</span> <span class="p">{</span>
     <span class="n">client</span><span class="p">.</span><span class="n">Ping</span><span class="p">()</span>
-    <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="s">&quot;ping()&quot;</span><span class="p">)</span></p>
-<div class="codehilite"><pre><span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>sum<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>_<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>client<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span 
 class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Add<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>1<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>1<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Print<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>1+1=<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na"
 >class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>sum<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;se&quot;</span><span class="nt">&gt;</span>\n<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>tutorial<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>NewWork<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>()<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Op<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>tutorial<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quo
 t;</span><span class="nt">&gt;</span>Operation_DIVIDE<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Num1<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>1<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Num2<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>0<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>quotient<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>client<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</spa
 n><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Calculate<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>1<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>if<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>!=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>nil<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>switch<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>v<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>type<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</sp
 an><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>case<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>*<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>tutorial<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;nl&quot;</span><span class="nt">&gt;</span>InvalidOperation:<span class="nt">&lt;/span&gt;</span>
-        <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Invalid operation:<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span
 </span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>v<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>default<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:<span class="nt">&lt;/span&gt;</span>
-        <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Error during operation:<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt
 ;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>return<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>else<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Whoa we can divide by 0 with new value:<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span cl
 ass="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>quotient<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span>
-
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Op<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>tutorial<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quo
 t;</span><span class="nt">&gt;</span>Operation_SUBTRACT<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Num1<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>15<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Num2<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>10<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>diff<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>client<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><s
 pan class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Calculate<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>1<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>work<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>if<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>!=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>nil<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>switch<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>v<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>type<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</sp
 an><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>case<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>*<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>tutorial<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;nl&quot;</span><span class="nt">&gt;</span>InvalidOperation:<span class="nt">&lt;/span&gt;</span>
-        <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Invalid operation:<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span
 </span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>v<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>default<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:<span class="nt">&lt;/span&gt;</span>
-        <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Error during operation:<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt
 ;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>return<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>else<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Print<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>15-10=<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span clas
 s="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>diff<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;se&quot;</span><span class="nt">&gt;</span>\n<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span>
-
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>log<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>client<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><sp
 an class="s">&quot;n&quot;</span><span class="nt">&gt;</span>GetStruct<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;mi&quot;</span><span class="nt">&gt;</span>1<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>if<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>!=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>nil<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Unable to get struct:<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span<
 /span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>return<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>else<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Check log:<span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <spa
 n class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>log<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Value<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>return<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span>
-</pre></div>
+    <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">ping</span><span class="p">()</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;)</span>
+
+    <span class="n">sum</span><span class="p">,</span> <span class="n">_</span> <span class="p">:=</span> <span class="n">client</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span>1<span class="p">,</span> 1<span class="p">)</span>
+    <span class="n">fmt</span><span class="p">.</span><span class="n">Print</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>1<span class="o">+</span>1<span class="p">=</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">sum</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="o">\</span><span class="n">n</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;)</span>
+
+    <span class="n">work</span> <span class="p">:=</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">NewWork</span><span class="p">()</span>
+    <span class="n">work</span><span class="p">.</span><span class="n">Op</span> <span class="p">=</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">Operation_DIVIDE</span>
+    <span class="n">work</span><span class="p">.</span><span class="n">Num1</span> <span class="p">=</span> 1
+    <span class="n">work</span><span class="p">.</span><span class="n">Num2</span> <span class="p">=</span> 0
+    <span class="n">quotient</span><span class="p">,</span> <span class="n">err</span> <span class="p">:=</span> <span class="n">client</span><span class="p">.</span><span class="n">Calculate</span><span class="p">(</span>1<span class="p">,</span> <span class="n">work</span><span class="p">)</span>
+    <span class="k">if</span> <span class="n">err</span> !<span class="p">=</span> <span class="n">nil</span> <span class="p">{</span>
+        <span class="k">switch</span> <span class="n">v</span> <span class="p">:=</span> <span class="n">err</span><span class="p">.(</span><span class="n">type</span><span class="p">)</span> <span class="p">{</span>
+        <span class="k">case</span> <span class="o">*</span><span class="n">tutorial</span><span class="p">.</span><span class="n">InvalidOperation</span><span class="p">:</span>
+            <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Invalid</span> <span class="n">operation</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">v</span><span class="p">)</span>
+        <span class="n">default</span><span class="p">:</span>
+            <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Error</span> <span class="n">during</span> <span class="n">operation</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">err</span><span class="p">)</span>
+        <span class="p">}</span>
+        <span class="k">return</span> <span class="n">err</span>
+    <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+        <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Whoa</span> <span class="n">we</span> <span class="n">can</span> <span class="n">divide</span> <span class="n">by</span> 0 <span class="n">with</span> <span class="n">new</span> <span class="n">value</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">quotient</span><span class="p">)</span>
+    <span class="p">}</span>
+
+    <span class="n">work</span><span class="p">.</span><span class="n">Op</span> <span class="p">=</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">Operation_SUBTRACT</span>
+    <span class="n">work</span><span class="p">.</span><span class="n">Num1</span> <span class="p">=</span> 15
+    <span class="n">work</span><span class="p">.</span><span class="n">Num2</span> <span class="p">=</span> 10
+    <span class="n">diff</span><span class="p">,</span> <span class="n">err</span> <span class="p">:=</span> <span class="n">client</span><span class="p">.</span><span class="n">Calculate</span><span class="p">(</span>1<span class="p">,</span> <span class="n">work</span><span class="p">)</span>
+    <span class="k">if</span> <span class="n">err</span> !<span class="p">=</span> <span class="n">nil</span> <span class="p">{</span>
+        <span class="k">switch</span> <span class="n">v</span> <span class="p">:=</span> <span class="n">err</span><span class="p">.(</span><span class="n">type</span><span class="p">)</span> <span class="p">{</span>
+        <span class="k">case</span> <span class="o">*</span><span class="n">tutorial</span><span class="p">.</span><span class="n">InvalidOperation</span><span class="p">:</span>
+            <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Invalid</span> <span class="n">operation</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">v</span><span class="p">)</span>
+        <span class="n">default</span><span class="p">:</span>
+            <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Error</span> <span class="n">during</span> <span class="n">operation</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">err</span><span class="p">)</span>
+        <span class="p">}</span>
+        <span class="k">return</span> <span class="n">err</span>
+    <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+        <span class="n">fmt</span><span class="p">.</span><span class="n">Print</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>15<span class="o">-</span>10<span class="p">=</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">diff</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="o">\</span><span class="n">n</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;)</span>
+    <span class="p">}</span>
 
+    <span class="nb">log</span><span class="p">,</span> <span class="n">err</span> <span class="p">:=</span> <span class="n">client</span><span class="p">.</span><span class="n">GetStruct</span><span class="p">(</span>1<span class="p">)</span>
+    <span class="k">if</span> <span class="n">err</span> !<span class="p">=</span> <span class="n">nil</span> <span class="p">{</span>
+        <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Unable</span> <span class="n">to</span> <span class="n">get</span> <span class="n">struct</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">err</span><span class="p">)</span>
+        <span class="k">return</span> <span class="n">err</span>
+    <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+        <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Check</span> <span class="nb">log</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="nb">log</span><span class="p">.</span><span class="n">Value</span><span class="p">)</span>
+    <span class="p">}</span>
+    <span class="k">return</span> <span class="n">err</span>
+<span class="p">}</span>
 
-<p><span class="p">}</span></p>
-<p><span class="n">func</span> <span class="n">runClient</span><span class="p">(</span><span class="n">transportFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TTransportFactory</span><span class="p">,</span> <span class="n">protocolFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TProtocolFactory</span><span class="p">,</span> <span class="n">addr</span> <span class="n">string</span><span class="p">,</span> <span class="n">secure</span> <span class="kt">bool</span><span class="p">)</span> <span class="n">error</span> <span class="p">{</span>
+<span class="n">func</span> <span class="n">runClient</span><span class="p">(</span><span class="n">transportFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TTransportFactory</span><span class="p">,</span> <span class="n">protocolFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TProtocolFactory</span><span class="p">,</span> <span class="n">addr</span> <span class="n">string</span><span class="p">,</span> <span class="n">secure</span> <span class="n">bool</span><span class="p">)</span> <span class="n">error</span> <span class="p">{</span>
     <span class="n">var</span> <span class="n">transport</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TTransport</span>
     <span class="n">var</span> <span class="n">err</span> <span class="n">error</span>
     <span class="k">if</span> <span class="n">secure</span> <span class="p">{</span>
-        <span class="n">cfg</span> <span class="o">:=</span> <span class="k">new</span><span class="p">(</span><span class="n">tls</span><span class="p">.</span><span class="n">Config</span><span class="p">)</span>
-        <span class="n">cfg</span><span class="p">.</span><span class="n">InsecureSkipVerify</span> <span class="o">=</span> <span class="kc">true</span>
-        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="o">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTSSLSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">,</span> <span class="n">cfg</span><span class="p">)</span>
+        <span class="n">cfg</span> <span class="p">:=</span> <span class="n">new</span><span class="p">(</span><span class="n">tls</span><span class="p">.</span><span class="n">Config</span><span class="p">)</span>
+        <span class="n">cfg</span><span class="p">.</span><span class="n">InsecureSkipVerify</span> <span class="p">=</span> <span class="n">true</span>
+        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="p">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTSSLSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">,</span> <span class="n">cfg</span><span class="p">)</span>
     <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
-        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="o">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">)</span>
+        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="p">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">)</span>
     <span class="p">}</span>
-    <span class="k">if</span> <span class="n">err</span> <span class="o">!=</span> <span class="n">nil</span> <span class="p">{</span>
-        <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="s">&quot;Error opening socket:&quot;</span><span class="p">,</span> <span class="n">err</span><span class="p">)</span>
+    <span class="k">if</span> <span class="n">err</span> !<span class="p">=</span> <span class="n">nil</span> <span class="p">{</span>
+        <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Error</span> <span class="n">opening</span> <span class="n">socket</span><span class="p">:</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">err</span><span class="p">)</span>
         <span class="k">return</span> <span class="n">err</span>
     <span class="p">}</span>
-    <span class="n">transport</span> <span class="o">=</span> <span class="n">transportFactory</span><span class="p">.</span><span class="n">GetTransport</span><span class="p">(</span><span class="n">transport</span><span class="p">)</span>
+    <span class="n">transport</span> <span class="p">=</span> <span class="n">transportFactory</span><span class="p">.</span><span class="n">GetTransport</span><span class="p">(</span><span class="n">transport</span><span class="p">)</span>
     <span class="n">defer</span> <span class="n">transport</span><span class="p">.</span><span class="n">Close</span><span class="p">()</span>
-    <span class="k">if</span> <span class="n">err</span> <span class="o">:=</span> <span class="n">transport</span><span class="p">.</span><span class="n">Open</span><span class="p">();</span> <span class="n">err</span> <span class="o">!=</span> <span class="n">nil</span> <span class="p">{</span>
+    <span class="k">if</span> <span class="n">err</span> <span class="p">:=</span> <span class="n">transport</span><span class="p">.</span><span class="n">Open</span><span class="p">();</span> <span class="n">err</span> !<span class="p">=</span> <span class="n">nil</span> <span class="p">{</span>
         <span class="k">return</span> <span class="n">err</span>
     <span class="p">}</span>
     <span class="k">return</span> <span class="n">handleClient</span><span class="p">(</span><span class="n">tutorial</span><span class="p">.</span><span class="n">NewCalculatorClientFactory</span><span class="p">(</span><span class="n">transport</span><span class="p">,</span> <span class="n">protocolFactory</span><span class="p">))</span>
 <span class="p">}</span>
-</pre></div></p>
+</pre></div>
+
+
 <h3 id="server">Server</h3>
-<p><div class="codehilite"><pre><span class="n">import</span> <span class="p">(</span>
-    <span class="s">&quot;crypto/tls&quot;</span>
-    <span class="s">&quot;fmt&quot;</span>
-    <span class="s">&quot;git.apache.org/thrift.git/lib/go/thrift&quot;</span>
-    <span class="s">&quot;tutorial&quot;</span>
-<span class="p">)</span></p>
-<p><span class="n">func</span> <span class="n">runServer</span><span class="p">(</span><span class="n">transportFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TTransportFactory</span><span class="p">,</span> <span class="n">protocolFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TProtocolFactory</span><span class="p">,</span> <span class="n">addr</span> <span class="n">string</span><span class="p">,</span> <span class="n">secure</span> <span class="kt">bool</span><span class="p">)</span> <span class="n">error</span> <span class="p">{</span>
+<div class="codehilite"><pre>  <span class="p">:::</span><span class="n">cpp</span>
+<span class="n">import</span> <span class="p">(</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">crypto</span><span class="o">/</span><span class="n">tls</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">fmt</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">git</span><span class="p">.</span><span class="n">apache</span><span class="p">.</span><span class="n">org</span><span class="o">/</span><span class="n">thrift</span><span class="p">.</span><span class="n">git</span><span class="o">/</span><span class="n">lib</span><span class="o">/</span><span class="n">go</span><span class="o">/</span><span class="n">thrift</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+    <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">tutorial</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span>
+<span class="p">)</span>
+
+<span class="n">func</span> <span class="n">runServer</span><span class="p">(</span><span class="n">transportFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TTransportFactory</span><span class="p">,</span> <span class="n">protocolFactory</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TProtocolFactory</span><span class="p">,</span> <span class="n">addr</span> <span class="n">string</span><span class="p">,</span> <span class="n">secure</span> <span class="n">bool</span><span class="p">)</span> <span class="n">error</span> <span class="p">{</span>
     <span class="n">var</span> <span class="n">transport</span> <span class="n">thrift</span><span class="p">.</span><span class="n">TServerTransport</span>
     <span class="n">var</span> <span class="n">err</span> <span class="n">error</span>
     <span class="k">if</span> <span class="n">secure</span> <span class="p">{</span>
-        <span class="n">cfg</span> <span class="o">:=</span> <span class="k">new</span><span class="p">(</span><span class="n">tls</span><span class="p">.</span><span class="n">Config</span><span class="p">)</span>
-        <span class="k">if</span> <span class="n">cert</span><span class="p">,</span> <span class="n">err</span> <span class="o">:=</span> <span class="n">tls</span><span class="p">.</span><span class="n">LoadX509KeyPair</span><span class="p">(</span><span class="s">&quot;server.crt&quot;</span><span class="p">,</span> <span class="s">&quot;server.key&quot;</span><span class="p">);</span> <span class="n">err</span> <span class="o">==</span> <span class="n">nil</span> <span class="p">{</span>
-            <span class="n">cfg</span><span class="p">.</span><span class="n">Certificates</span> <span class="o">=</span> <span class="n">append</span><span class="p">(</span><span class="n">cfg</span><span class="p">.</span><span class="n">Certificates</span><span class="p">,</span> <span class="n">cert</span><span class="p">)</span>
+        <span class="n">cfg</span> <span class="p">:=</span> <span class="n">new</span><span class="p">(</span><span class="n">tls</span><span class="p">.</span><span class="n">Config</span><span class="p">)</span>
+        <span class="k">if</span> <span class="n">cert</span><span class="p">,</span> <span class="n">err</span> <span class="p">:=</span> <span class="n">tls</span><span class="p">.</span><span class="n">LoadX509KeyPair</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">server</span><span class="p">.</span><span class="n">crt</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">server</span><span class="p">.</span><span class="n">key</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;);</span> <span class="n">err</span> <span class="o">==</span> <span class="n">nil</span> <span class="p">{</span>
+            <span class="n">cfg</span><span class="p">.</span><span class="n">Certificates</span> <span class="p">=</span> <span class="n">append</span><span class="p">(</span><span class="n">cfg</span><span class="p">.</span><span class="n">Certificates</span><span class="p">,</span> <span class="n">cert</span><span class="p">)</span>
         <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
             <span class="k">return</span> <span class="n">err</span>
         <span class="p">}</span>
-        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="o">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTSSLServerSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">,</span> <span class="n">cfg</span><span class="p">)</span>
+        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="p">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTSSLServerSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">,</span> <span class="n">cfg</span><span class="p">)</span>
     <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
-        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="o">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTServerSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">)</span>
-    <span class="p">}</span></p>
-<div class="codehilite"><pre><span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>if<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>!=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>nil<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>{<span class="nt">&lt;/span&gt;</span>
-    <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>return<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>err<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>}<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Printf<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>%T<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;se&quot;</span><span class="nt">&gt;</span>\n<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span cl
 ass="nt">&gt;</span><span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>transport<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>handler<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>NewCalculatorHandler<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>()<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>processor<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>tutorial<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>NewCalculatorProcessor<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><
 span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>handler<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>server<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;o&quot;</span><span class="nt">&gt;</span>:=<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>thrift<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>NewTSimpleServer4<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class
 ="s">&quot;n&quot;</span><span class="nt">&gt;</span>processor<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>transport<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>transportFactory<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt
 ;</span>protocolFactory<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
+        <span class="n">transport</span><span class="p">,</span> <span class="n">err</span> <span class="p">=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTServerSocket</span><span class="p">(</span><span class="n">addr</span><span class="p">)</span>
+    <span class="p">}</span>
+
+    <span class="k">if</span> <span class="n">err</span> !<span class="p">=</span> <span class="n">nil</span> <span class="p">{</span>
+        <span class="k">return</span> <span class="n">err</span>
+    <span class="p">}</span>
+    <span class="n">fmt</span><span class="p">.</span><span class="n">Printf</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="c">%T\n&amp;quot;, transport)</span>
+    <span class="n">handler</span> <span class="p">:=</span> <span class="n">NewCalculatorHandler</span><span class="p">()</span>
+    <span class="n">processor</span> <span class="p">:=</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">NewCalculatorProcessor</span><span class="p">(</span><span class="n">handler</span><span class="p">)</span>
+    <span class="n">server</span> <span class="p">:=</span> <span class="n">thrift</span><span class="p">.</span><span class="n">NewTSimpleServer4</span><span class="p">(</span><span class="n">processor</span><span class="p">,</span> <span class="n">transport</span><span class="p">,</span> <span class="n">transportFactory</span><span class="p">,</span> <span class="n">protocolFactory</span><span class="p">)</span>
 
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>fmt<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Println<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>(<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;s&quot;</span><span class="nt">&gt;</span><span class="ni">&amp;quot;</span>Starting the simple server... on <span class="ni">&amp;quot;</span><span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>,<span class="nt">&lt;/span&gt;</span> <span class="nt">&
 lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>addr<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>)<span class="nt">&lt;/span&gt;</span>
-<span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;k&quot;</span><span class="nt">&gt;</span>return<span class="nt">&lt;/span&gt;</span> <span class="nt">&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>server<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>.<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;n&quot;</span><span class="nt">&gt;</span>Serve<span class="nt">&lt;/span&gt;&lt;span</span> <span class="na">class=</span><span class="s">&quot;p&quot;</span><span class="nt">&gt;</span>()<span class="nt">&lt;/span&gt;</span>
+    <span class="n">fmt</span><span class="p">.</span><span class="n">Println</span><span class="p">(</span><span class="o">&amp;</span><span class="n">quot</span><span class="p">;</span><span class="n">Starting</span> <span class="n">the</span> <span class="n">simple</span> <span class="n">server</span><span class="p">...</span> <span class="n">on</span> <span class="o">&amp;</span><span class="n">quot</span><span class="p">;,</span> <span class="n">addr</span><span class="p">)</span>
+    <span class="k">return</span> <span class="n">server</span><span class="p">.</span><span class="n">Serve</span><span class="p">()</span>
+<span class="p">}</span>
 </pre></div>
 
 
-<p><span class="p">}</span>
-</pre></div></p>
 <h2 id="additional-information">Additional Information</h2>
 <ul>
 <li>Try using one of the other available protocols, default is binary.</li>