new art: lapse

1 files changed, 59 insertions, 26 deletions

diff --git a/docs/posts/gripes_with_go/index.html b/docs/posts/gripes_with_go/index.html
index 1551fe6..74d6995 100644
--- a/docs/posts/gripes_with_go/index.html
+++ b/docs/posts/gripes_with_go/index.html
@@ -28,7 +28,7 @@
             01/08 — 2020
             <div class="stats">
               <span class="stats-number">
-                76.71
+                76.72
               </span>
               <span class="stats-unit">cm</span>
               &nbsp
@@ -42,17 +42,24 @@
             Gripes With Go
           </h1>
           <div class="post-text">
-            <p>You’ve read a lot of posts about the shortcomings of the Go programming language, so what’s one more.</p>
+            <p>You’ve read a lot of posts about the shortcomings of the Go
+programming language, so what’s one more.</p>
 <ol type="1">
 <li><a href="#lack-of-sum-types">Lack of sum types</a></li>
 <li><a href="#type-assertions">Type assertions</a></li>
 <li><a href="#date-and-time">Date and Time</a></li>
-<li><a href="#statements-over-expressions">Statements over Expressions</a></li>
-<li><a href="#erroring-out-on-unused-variables">Erroring out on unused variables</a></li>
+<li><a href="#statements-over-expressions">Statements over
+Expressions</a></li>
+<li><a href="#erroring-out-on-unused-variables">Erroring out on unused
+variables</a></li>
 <li><a href="#error-handling">Error handling</a></li>
 </ol>
 <h3 id="lack-of-sum-types">Lack of Sum types</h3>
-<p>A “Sum” type is a data type that can hold one of many states at a given time, similar to how a boolean can hold a true or a false, not too different from an <code>enum</code> type in C. Go lacks <code>enum</code> types unfortunately, and you are forced to resort to crafting your own substitute.</p>
+<p>A “Sum” type is a data type that can hold one of many states at a
+given time, similar to how a boolean can hold a true or a false, not too
+different from an <code>enum</code> type in C. Go lacks
+<code>enum</code> types unfortunately, and you are forced to resort to
+crafting your own substitute.</p>
 <p>A type to represent gender for example:</p>
 <div class="sourceCode" id="cb1"><pre class="sourceCode go"><code class="sourceCode go"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="kw">type</span> Gender <span class="dt">int</span></span>
 <span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a></span>
@@ -67,17 +74,18 @@
 <span id="cb1-11"><a href="#cb1-11" aria-hidden="true" tabindex="-1"></a><span class="co">// Oops! We have to implement String() for Gender ...</span></span>
 <span id="cb1-12"><a href="#cb1-12" aria-hidden="true" tabindex="-1"></a></span>
 <span id="cb1-13"><a href="#cb1-13" aria-hidden="true" tabindex="-1"></a><span class="kw">func</span> <span class="op">(</span>g Gender<span class="op">)</span> String<span class="op">()</span> <span class="dt">string</span> <span class="op">{</span></span>
-<span id="cb1-14"><a href="#cb1-14" aria-hidden="true" tabindex="-1"></a>    <span class="kw">switch</span> <span class="op">(</span>g<span class="op">)</span> <span class="op">{</span></span>
-<span id="cb1-15"><a href="#cb1-15" aria-hidden="true" tabindex="-1"></a>    <span class="kw">case</span> <span class="dv">0</span><span class="op">:</span> <span class="kw">return</span> <span class="st">&quot;Male&quot;</span></span>
-<span id="cb1-16"><a href="#cb1-16" aria-hidden="true" tabindex="-1"></a>    <span class="kw">case</span> <span class="dv">1</span><span class="op">:</span> <span class="kw">return</span> <span class="st">&quot;Female&quot;</span></span>
-<span id="cb1-17"><a href="#cb1-17" aria-hidden="true" tabindex="-1"></a>    <span class="kw">default</span><span class="op">:</span> <span class="kw">return</span> <span class="st">&quot;Other&quot;</span></span>
+<span id="cb1-14"><a href="#cb1-14" aria-hidden="true" tabindex="-1"></a>    <span class="cf">switch</span> <span class="op">(</span>g<span class="op">)</span> <span class="op">{</span></span>
+<span id="cb1-15"><a href="#cb1-15" aria-hidden="true" tabindex="-1"></a>    <span class="cf">case</span> <span class="dv">0</span><span class="op">:</span> <span class="cf">return</span> <span class="st">&quot;Male&quot;</span></span>
+<span id="cb1-16"><a href="#cb1-16" aria-hidden="true" tabindex="-1"></a>    <span class="cf">case</span> <span class="dv">1</span><span class="op">:</span> <span class="cf">return</span> <span class="st">&quot;Female&quot;</span></span>
+<span id="cb1-17"><a href="#cb1-17" aria-hidden="true" tabindex="-1"></a>    <span class="cf">default</span><span class="op">:</span> <span class="cf">return</span> <span class="st">&quot;Other&quot;</span></span>
 <span id="cb1-18"><a href="#cb1-18" aria-hidden="true" tabindex="-1"></a>    <span class="op">}</span></span>
 <span id="cb1-19"><a href="#cb1-19" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span>
 <span id="cb1-20"><a href="#cb1-20" aria-hidden="true" tabindex="-1"></a></span>
 <span id="cb1-21"><a href="#cb1-21" aria-hidden="true" tabindex="-1"></a><span class="co">// You can accidentally do stupid stuff like:</span></span>
 <span id="cb1-22"><a href="#cb1-22" aria-hidden="true" tabindex="-1"></a>gender <span class="op">:=</span> Male <span class="op">+</span> <span class="dv">1</span></span></code></pre></div>
 <p>The Haskell equivalent of the same:</p>
-<div class="sourceCode" id="cb2"><pre class="sourceCode haskell"><code class="sourceCode haskell"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="kw">data</span> <span class="dt">Gender</span> <span class="ot">=</span> <span class="dt">Male</span></span>
+<div class="sourceCode" id="cb2"><pre
+class="sourceCode haskell"><code class="sourceCode haskell"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="kw">data</span> <span class="dt">Gender</span> <span class="ot">=</span> <span class="dt">Male</span></span>
 <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a>            <span class="op">|</span> <span class="dt">Female</span></span>
 <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a>            <span class="op">|</span> <span class="dt">Other</span></span>
 <span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a>            <span class="kw">deriving</span> (<span class="dt">Show</span>)</span>
@@ -88,7 +96,7 @@
 <p>Type assertions in Go allow you to do:</p>
 <div class="sourceCode" id="cb3"><pre class="sourceCode go"><code class="sourceCode go"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="kw">var</span> x <span class="kw">interface</span><span class="op">{}</span> <span class="op">=</span> <span class="dv">7</span></span>
 <span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>y<span class="op">,</span> goodToGo <span class="op">:=</span> x<span class="op">.(</span><span class="dt">int</span><span class="op">)</span></span>
-<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="kw">if</span> goodToGo <span class="op">{</span></span>
+<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> goodToGo <span class="op">{</span></span>
 <span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a>    fmt<span class="op">.</span>Println<span class="op">(</span>y<span class="op">)</span></span>
 <span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
 <p>The error check however is optional:</p>
@@ -98,18 +106,32 @@
 <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a><span class="co">// results in a runtime error:</span></span>
 <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a><span class="co">// panic: interface conversion: interface {} is int, not float64</span></span></code></pre></div>
 <h3 id="date-and-time">Date and Time</h3>
-<p>Anyone that has written Go previously, will probably already know what I am getting at here. For the uninitiated, parsing and formatting dates in Go requires a “layout”. This “layout” is based on magical reference date:</p>
+<p>Anyone that has written Go previously, will probably already know
+what I am getting at here. For the uninitiated, parsing and formatting
+dates in Go requires a “layout”. This “layout” is based on magical
+reference date:</p>
 <pre><code>Mon Jan 2 15:04:05 MST 2006</code></pre>
-<p>Which is the date produced when you write the first seven natural numbers like so:</p>
+<p>Which is the date produced when you write the first seven natural
+numbers like so:</p>
 <pre><code>01/02 03:04:05 &#39;06 -0700</code></pre>
-<p>Parsing a string in <code>YYYY-MM-DD</code> format would look something like:</p>
+<p>Parsing a string in <code>YYYY-MM-DD</code> format would look
+something like:</p>
 <div class="sourceCode" id="cb7"><pre class="sourceCode go"><code class="sourceCode go"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="kw">const</span> layout <span class="op">=</span> <span class="st">&quot;2006-01-02&quot;</span></span>
 <span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a>time<span class="op">.</span>Parse<span class="op">(</span>layout<span class="op">,</span> <span class="st">&quot;2020-08-01&quot;</span><span class="op">)</span></span></code></pre></div>
-<p>This so-called “intuitive” method of formatting dates doesn’t allow you to print <code>0000 hrs</code> as <code>2400 hrs</code>, it doesn’t allow you to omit the leading zero in 24 hour formats. It is rife with inconveniences, if only there were a <a href="https://man7.org/linux/man-pages/man3/strftime.3.html">tried and tested</a> date formatting convention …</p>
+<p>This so-called “intuitive” method of formatting dates doesn’t allow
+you to print <code>0000 hrs</code> as <code>2400 hrs</code>, it doesn’t
+allow you to omit the leading zero in 24 hour formats. It is rife with
+inconveniences, if only there were a <a
+href="https://man7.org/linux/man-pages/man3/strftime.3.html">tried and
+tested</a> date formatting convention …</p>
 <h3 id="statements-over-expressions">Statements over Expressions</h3>
-<p>Statements have side effects, expressions return values. More often than not, expressions are easier to understand at a glance: evaluate the LHS and assign the same to the RHS.</p>
-<p>Rust allows you to create local namespaces, and treats blocks (<code>{}</code>) as expressions:</p>
-<div class="sourceCode" id="cb8"><pre class="sourceCode rust"><code class="sourceCode rust"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="kw">let</span> twenty_seven <span class="op">=</span> <span class="op">{</span></span>
+<p>Statements have side effects, expressions return values. More often
+than not, expressions are easier to understand at a glance: evaluate the
+LHS and assign the same to the RHS.</p>
+<p>Rust allows you to create local namespaces, and treats blocks
+(<code>{}</code>) as expressions:</p>
+<div class="sourceCode" id="cb8"><pre
+class="sourceCode rust"><code class="sourceCode rust"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="kw">let</span> twenty_seven <span class="op">=</span> <span class="op">{</span></span>
 <span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a>    <span class="kw">let</span> three <span class="op">=</span> <span class="dv">1</span> <span class="op">+</span> <span class="dv">2</span><span class="op">;</span></span>
 <span id="cb8-3"><a href="#cb8-3" aria-hidden="true" tabindex="-1"></a>    <span class="kw">let</span> nine <span class="op">=</span> three <span class="op">*</span> three<span class="op">;</span></span>
 <span id="cb8-4"><a href="#cb8-4" aria-hidden="true" tabindex="-1"></a>    nine <span class="op">*</span> three</span>
@@ -120,17 +142,25 @@
 <span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a>three <span class="op">:=</span> <span class="dv">1</span> <span class="op">+</span> <span class="dv">2</span></span>
 <span id="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a>nine <span class="op">:=</span> three <span class="op">*</span> three</span>
 <span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a>twenty_seven <span class="op">=</span> nine <span class="op">*</span> three</span></code></pre></div>
-<h3 id="erroring-out-on-unused-variables">Erroring out on unused variables</h3>
-<p>Want to quickly prototype something? Go says no! In all seriousness, a warning would suffice, I don’t want to have to go back and comment each unused import out, only to come back and uncomment them a few seconds later.</p>
+<h3 id="erroring-out-on-unused-variables">Erroring out on unused
+variables</h3>
+<p>Want to quickly prototype something? Go says no! In all seriousness,
+a warning would suffice, I don’t want to have to go back and comment
+each unused import out, only to come back and uncomment them a few
+seconds later.</p>
 <h3 id="error-handling">Error handling</h3>
-<div class="sourceCode" id="cb10"><pre class="sourceCode go"><code class="sourceCode go"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="kw">if</span> err <span class="op">!=</span> <span class="ot">nil</span> <span class="op">{</span> <span class="op">...</span> <span class="op">}</span></span></code></pre></div>
+<div class="sourceCode" id="cb10"><pre
+class="sourceCode go"><code class="sourceCode go"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> err <span class="op">!=</span> <span class="ot">nil</span> <span class="op">{</span> <span class="op">...</span> <span class="op">}</span></span></code></pre></div>
 <p>Need I say more? I will, for good measure:</p>
 <ol type="1">
 <li>Error handling is optional</li>
-<li>Errors are propagated via a clunky <code>if</code> + <code>return</code> statement</li>
+<li>Errors are propagated via a clunky <code>if</code> +
+<code>return</code> statement</li>
 </ol>
-<p>I prefer Haskell’s “Monadic” error handling, which is employed by Rust as well:</p>
-<div class="sourceCode" id="cb11"><pre class="sourceCode rust"><code class="sourceCode rust"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="co">// 1. error handling is compulsory</span></span>
+<p>I prefer Haskell’s “Monadic” error handling, which is employed by
+Rust as well:</p>
+<div class="sourceCode" id="cb11"><pre
+class="sourceCode rust"><code class="sourceCode rust"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="co">// 1. error handling is compulsory</span></span>
 <span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a><span class="co">// 2. errors are propagated with the `?` operator</span></span>
 <span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a><span class="kw">fn</span> foo() <span class="op">-&gt;</span> <span class="dt">Result</span><span class="op">&lt;</span><span class="dt">String</span><span class="op">,</span> <span class="pp">io::</span><span class="bu">Error</span><span class="op">&gt;</span> <span class="op">{</span></span>
 <span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a>    <span class="kw">let</span> <span class="kw">mut</span> f <span class="op">=</span> <span class="pp">File::</span>open(<span class="st">&quot;foo.txt&quot;</span>)<span class="op">?;</span> <span class="co">// return if error</span></span>
@@ -144,13 +174,16 @@
 <span id="cb11-12"><a href="#cb11-12" aria-hidden="true" tabindex="-1"></a><span class="kw">fn</span> main() <span class="op">{</span></span>
 <span id="cb11-13"><a href="#cb11-13" aria-hidden="true" tabindex="-1"></a>    <span class="co">// `contents` is an enum known as Result:</span></span>
 <span id="cb11-14"><a href="#cb11-14" aria-hidden="true" tabindex="-1"></a>    <span class="kw">let</span> contents <span class="op">=</span> foo()<span class="op">;</span></span>
-<span id="cb11-15"><a href="#cb11-15" aria-hidden="true" tabindex="-1"></a>    <span class="kw">match</span> contents <span class="op">{</span></span>
+<span id="cb11-15"><a href="#cb11-15" aria-hidden="true" tabindex="-1"></a>    <span class="cf">match</span> contents <span class="op">{</span></span>
 <span id="cb11-16"><a href="#cb11-16" aria-hidden="true" tabindex="-1"></a>        <span class="cn">Ok</span>(c) <span class="op">=&gt;</span> <span class="pp">println!</span>(c)<span class="op">,</span></span>
 <span id="cb11-17"><a href="#cb11-17" aria-hidden="true" tabindex="-1"></a>        <span class="cn">Err</span>(e) <span class="op">=&gt;</span> <span class="pp">eprintln!</span>(e)</span>
 <span id="cb11-18"><a href="#cb11-18" aria-hidden="true" tabindex="-1"></a>    <span class="op">}</span></span>
 <span id="cb11-19"><a href="#cb11-19" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
 <h3 id="conclusion">Conclusion</h3>
-<p>I did not want to conclude without talking about stylistic choices, lack of metaprogramming, bizzare export rules, but, I am too busy converting my <code>interface{}</code> types into actual generic code for Go v2.</p>
+<p>I did not want to conclude without talking about stylistic choices,
+lack of metaprogramming, bizzare export rules, but, I am too busy
+converting my <code>interface{}</code> types into actual generic code
+for Go v2.</p>
 
           </div>