Deployed c078119 to master with MkDocs 1.2.4 and mike 1.1.2

master/CHANGELOG/index.html

@@ -1481,6 +1481,7 @@ and this project adheres to <a href="https://semver.org/spec/v2.0.0.html">Semant
   entrypoint f(c : Main) : int = c.spend(10)
 </code></pre></div></li>
 <li>Return a mapping from variables to FATE registers in the compilation output.</li>
+<li>Hole expression.</li>
 </ul>
 <h3 id="changed">Changed</h3>
 <ul>

master/sitemap.xml

@@ -2,47 +2,47 @@
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
     <url>
          <loc>None</loc>
-         <lastmod>2022-12-12</lastmod>
+         <lastmod>2023-01-12</lastmod>
          <changefreq>daily</changefreq>
     </url>
 </urlset>

master/sophia_features/index.html

@@ -423,6 +423,13 @@
     Literals
   </a>
   
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#hole-expression" class="md-nav__link">
+    Hole expression
+  </a>
+  
 </li>
       
         <li class="md-nav__item">
@@ -825,6 +832,13 @@
     Literals
   </a>
   
+</li>
+      
+        <li class="md-nav__item">
+  <a href="#hole-expression" class="md-nav__link">
+    Hole expression
+  </a>
+  
 </li>
       
         <li class="md-nav__item">
@@ -1665,6 +1679,14 @@ Others like <code>List</code>, <code>Frac</code>, <code>Option</code> need to be
 </tr>
 </tbody>
 </table>
+<h2 id="hole-expression">Hole expression</h2>
+<p>Hole expressions, written as <code>???</code>, are expressions that are used as a placeholder. During compilation, the compiler will generate a type error indication the type of the hole expression.</p>
+<div class="highlight"><pre><span></span><code>include &quot;List.aes&quot;
+contract C =
+    entrypoint f() =
+        List.sum(List.map(???, [1,2,3]))
+</code></pre></div>
+<p>A hole expression found in the example above will generate the error <code>Found a hole of type `(int) =&gt; int`</code>. This says that the compiler expects a function from <code>int</code> to <code>int</code> in place of the <code>???</code> placeholder.</p>
 <h2 id="arithmetic">Arithmetic</h2>
 <p>Sophia integers (<code>int</code>) are represented by arbitrary-sized signed words and support the following
 arithmetic operations:

master/sophia_syntax/index.html

@@ -811,6 +811,7 @@ element may be indented less than the indentation of the block. For instance</p>
 <span class="w">       </span><span class="o">|</span><span class="w"> </span><span class="n">Int</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Bytes</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">String</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">Char</span><span class="w">        </span><span class="c1">// Literals              123, 0xff, #00abc123, &quot;foo&quot;, &#39;%&#39;</span>
 <span class="w">       </span><span class="o">|</span><span class="w"> </span><span class="n">AccountAddress</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">ContractAddress</span><span class="w">   </span><span class="c1">// Chain identifiers</span>
 <span class="w">       </span><span class="o">|</span><span class="w"> </span><span class="n">OracleAddress</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">OracleQueryId</span><span class="w">      </span><span class="c1">// Chain identifiers</span>
+<span class="w">       </span><span class="o">|</span><span class="w"> </span><span class="err">&#39;</span><span class="o">???</span><span class="err">&#39;</span><span class="w">                              </span><span class="c1">// Hole expression       1 + ???</span>
 
 <span class="n">Generator</span><span class="w"> </span><span class="o">::=</span><span class="w"> </span><span class="n">Pattern</span><span class="w"> </span><span class="err">&#39;</span><span class="o">&lt;-</span><span class="err">&#39;</span><span class="w"> </span><span class="n">Expr</span><span class="w">   </span><span class="c1">// Generator</span>
 <span class="w">            </span><span class="o">|</span><span class="w"> </span><span class="err">&#39;</span><span class="k">if</span><span class="sc">&#39; &#39;</span><span class="p">(</span><span class="err">&#39;</span><span class="w"> </span><span class="n">Expr</span><span class="w"> </span><span class="sc">&#39;)&#39;</span><span class="w">   </span><span class="c1">// Guard</span>