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CoffeeScript 0.9.2

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Jeremy Ashkenas 2010-08-23 22:08:33 -04:00
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@ -65,7 +65,6 @@ them somewhat circular.</p> </td> <td class="code">
<span class="nx">o</span> <span class="s2">&quot;Switch&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Extends&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Class&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Splat&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Existence&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Comment&quot;</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-13">#</a> </div> <p>An indented block of expressions. Note that the <a href="rewriter.html">Rewriter</a>
@ -215,41 +214,49 @@ object.</p> </td> <td class="code"> <div c
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-46"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-46">#</a> </div> <p>The slice literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Slice</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;INDEX_START Expression . . Expression INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$5</span>
<span class="nx">o</span> <span class="s2">&quot;INDEX_START Expression . . . Expression INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;INDEX_START Expression . . INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span>
<span class="nx">o</span> <span class="s2">&quot;INDEX_START Expression . . . INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;INDEX_START . . Expression INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;INDEX_START . . . Expression INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$5</span><span class="p">,</span> <span class="kc">true</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-47"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-47">#</a> </div> <p>The array literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nb">Array</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;[ ArgList OptComma ]&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ArrayNode</span> <span class="nx">$2</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-48"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-48">#</a> </div> <p>The <strong>ArgList</strong> is both the list of objects passed into a function call,
as well as the contents of an array literal
(i.e. comma-separated expressions). Newlines work as well.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ArgList</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">[]</span>
<span class="nx">o</span> <span class="s2">&quot;Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;ArgList , Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$3</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;ArgList OptComma TERMINATOR Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$4</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;Arg&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;ArgList , Arg&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$3</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;ArgList OptComma TERMINATOR Arg&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$4</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;ArgList OptComma INDENT ArgList OptComma OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">$4</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-49"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-49">#</a> </div> <p>Just simple, comma-separated, required arguments (no fancy syntax). We need
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-49"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-49">#</a> </div> <p>Valid arguments are Expressions or Splats.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Arg</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;Expression&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Splat&quot;</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-50"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-50">#</a> </div> <p>Just simple, comma-separated, required arguments (no fancy syntax). We need
this to be separate from the <strong>ArgList</strong> for use in <strong>Switch</strong> blocks, where
having the newlines wouldn't make sense.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">SimpleArgs</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;Expression&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;SimpleArgs , Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span>
<span class="k">if</span> <span class="nx">$1</span> <span class="k">instanceof</span> <span class="nb">Array</span> <span class="k">then</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span><span class="p">([</span><span class="nx">$3</span><span class="p">])</span> <span class="k">else</span> <span class="p">[</span><span class="nx">$1</span><span class="p">].</span><span class="nx">concat</span><span class="p">([</span><span class="nx">$3</span><span class="p">])</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-50"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-50">#</a> </div> <p>The variants of <em>try/catch/finally</em> exception handling blocks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Try</span><span class="o">:</span> <span class="p">[</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-51"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-51">#</a> </div> <p>The variants of <em>try/catch/finally</em> exception handling blocks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Try</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;TRY Block Catch&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">TryNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;TRY Block FINALLY Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">TryNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;TRY Block Catch FINALLY Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">TryNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="nx">$5</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-51"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-51">#</a> </div> <p>A catch clause names its error and runs a block of code.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Catch</span><span class="o">:</span> <span class="p">[</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-52"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-52">#</a> </div> <p>A catch clause names its error and runs a block of code.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Catch</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;CATCH Identifier Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">]</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-52"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-52">#</a> </div> <p>Throw an exception object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Throw</span><span class="o">:</span> <span class="p">[</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-53"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-53">#</a> </div> <p>Throw an exception object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Throw</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;THROW Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ThrowNode</span> <span class="nx">$2</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-53"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-53">#</a> </div> <p>Parenthetical expressions. Note that the <strong>Parenthetical</strong> is a <strong>Value</strong>,
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-54"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-54">#</a> </div> <p>Parenthetical expressions. Note that the <strong>Parenthetical</strong> is a <strong>Value</strong>,
not an <strong>Expression</strong>, so if you need to use an expression in a place
where only values are accepted, wrapping it in parentheses will always do
the trick.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Parenthetical</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;( Line )&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="nx">$2</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-54"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-54">#</a> </div> <p>The condition portion of a while loop.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">WhileSource</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;( )&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;&#39;</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-55"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-55">#</a> </div> <p>The condition portion of a while loop.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">WhileSource</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;WHILE Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;WHILE Expression WHEN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;UNTIL Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;UNTIL Expression WHEN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-55"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-55">#</a> </div> <p>The while loop can either be normal, with a block of expressions to execute,
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-56"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-56">#</a> </div> <p>The while loop can either be normal, with a block of expressions to execute,
or postfix, with a single expression. There is no do..while.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">While</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;WhileSource Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;Statement WhileSource&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
@ -260,7 +267,7 @@ or postfix, with a single expression. There is no do..while.</p> </t
<span class="nx">Loop</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;LOOP Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;true&#39;</span><span class="p">).</span><span class="nx">addBody</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;LOOP Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;true&#39;</span><span class="p">).</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$2</span><span class="p">]</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-56"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-56">#</a> </div> <p>Array, object, and range comprehensions, at the most generic level.
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-57"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-57">#</a> </div> <p>Array, object, and range comprehensions, at the most generic level.
Comprehensions can either be normal, with a block of expressions to execute,
or postfix, with a single expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">For</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;Statement ForBody&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">vars</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">vars</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
@ -276,17 +283,17 @@ or postfix, with a single expression.</p> </td> <td clas
<span class="nx">ForStart</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;FOR ForVariables&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;FOR ALL ForVariables&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nv">$3.raw = </span><span class="kc">true</span><span class="p">;</span> <span class="nx">$3</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-57"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-57">#</a> </div> <p>An array of all accepted values for a variable inside the loop. This
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-58"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-58">#</a> </div> <p>An array of all accepted values for a variable inside the loop. This
enables support for pattern matching.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ForValue</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;Identifier&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Array&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
<span class="nx">o</span> <span class="s2">&quot;Object&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-58"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-58">#</a> </div> <p>An array or range comprehension has variables for the current element and
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-59"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-59">#</a> </div> <p>An array or range comprehension has variables for the current element and
(optional) reference to the current index. Or, <em>key, value</em>, in the case
of object comprehensions.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ForVariables</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;ForValue&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
<span class="nx">o</span> <span class="s2">&quot;ForValue , ForValue&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span><span class="p">]</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-59"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-59">#</a> </div> <p>The source of a comprehension is an array or object with an optional guard
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-60"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-60">#</a> </div> <p>The source of a comprehension is an array or object with an optional guard
clause. If it's an array comprehension, you can also choose to step through
in fixed-size increments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ForSource</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;IN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span>
@ -296,92 +303,68 @@ in fixed-size increments.</p> </td> <td class="code">
<span class="nx">o</span> <span class="s2">&quot;IN Expression BY Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">step</span><span class="o">:</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;IN Expression WHEN Expression BY Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">step</span><span class="o">:</span> <span class="nx">$6</span>
<span class="nx">o</span> <span class="s2">&quot;IN Expression BY Expression WHEN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">step</span><span class="o">:</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$6</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-60"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-60">#</a> </div> <p>The CoffeeScript switch/when/else block replaces the JavaScript
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-61"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-61">#</a> </div> <p>The CoffeeScript switch/when/else block replaces the JavaScript
switch/case/default by compiling into an if-else chain.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Switch</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;SWITCH Expression INDENT Whens OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$4</span><span class="p">.</span><span class="nx">switchesOver</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;SWITCH Expression INDENT Whens ELSE Block OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$4</span><span class="p">.</span><span class="nx">switchesOver</span><span class="p">(</span><span class="nx">$2</span><span class="p">).</span><span class="nx">addElse</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;SWITCH INDENT Whens OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;SWITCH INDENT Whens ELSE Block OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$3</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$5</span><span class="p">,</span> <span class="kc">true</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-61"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-61">#</a> </div> <p>The inner list of whens is left recursive. At code-generation time, the
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-62"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-62">#</a> </div> <p>The inner list of whens is left recursive. At code-generation time, the
IfNode will rewrite them into a proper chain.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Whens</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;When&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Whens When&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$2</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-62"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-62">#</a> </div> <p>An individual <strong>When</strong> clause, with action.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">When</span><span class="o">:</span> <span class="p">[</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-63"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-63">#</a> </div> <p>An individual <strong>When</strong> clause, with action.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">When</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;LEADING_WHEN SimpleArgs Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;LEADING_WHEN SimpleArgs Block TERMINATOR&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-63"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-63">#</a> </div> <p>The most basic form of <em>if</em> is a condition and an action. The following
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-64"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-64">#</a> </div> <p>The most basic form of <em>if</em> is a condition and an action. The following
if-related rules are broken up along these lines in order to avoid
ambiguity.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">IfBlock</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;IF Expression Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;UNLESS Expression Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;IfBlock ELSE IF Expression Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="p">(</span><span class="k">new</span> <span class="nx">IfNode</span><span class="p">(</span><span class="nx">$4</span><span class="p">,</span> <span class="nx">$5</span><span class="p">)).</span><span class="nx">forceStatement</span><span class="p">()</span>
<span class="nx">o</span> <span class="s2">&quot;IfBlock ELSE Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$3</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-64"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-64">#</a> </div> <p>The full complement of <em>if</em> expressions, including postfix one-liner
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-65"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-65">#</a> </div> <p>The full complement of <em>if</em> expressions, including postfix one-liner
<em>if</em> and <em>unless</em>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">If</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;IfBlock&quot;</span>
<span class="nx">o</span> <span class="s2">&quot;Statement IF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Expression IF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Statement UNLESS Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Expression UNLESS Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-65"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-65">#</a> </div> <p>Arithmetic and logical operators, working on one or more operands.
<span class="nx">o</span> <span class="s2">&quot;Statement POST_IF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Expression POST_IF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Statement POST_UNLESS Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Expression POST_UNLESS Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="nx">statement</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-66"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-66">#</a> </div> <p>Arithmetic and logical operators, working on one or more operands.
Here they are grouped by order of precedence. The actual precedence rules
are defined at the bottom of the page. It would be shorter if we could
combine most of these rules into a single generic <em>Operand OpSymbol Operand</em>
-type rule, but in order to make the precedence binding possible, separate
rules are necessary.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Operation</span><span class="o">:</span> <span class="p">[</span>
<span class="nx">o</span> <span class="s2">&quot;! Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;!! Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;!!&#39;</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span><span class="p">(</span><span class="s2">&quot;- Expression&quot;</span><span class="p">,</span> <span class="p">(</span><span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nx">prec</span><span class="o">:</span> <span class="s1">&#39;UMINUS&#39;</span><span class="p">})</span>
<span class="nx">o</span><span class="p">(</span><span class="s2">&quot;+ Expression&quot;</span><span class="p">,</span> <span class="p">(</span><span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nx">prec</span><span class="o">:</span> <span class="s1">&#39;UPLUS&#39;</span><span class="p">})</span>
<span class="nx">o</span> <span class="s2">&quot;~ Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;~&#39;</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;UNARY Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span><span class="p">(</span><span class="s2">&quot;- Expression&quot;</span><span class="p">,</span> <span class="p">(</span><span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nx">prec</span><span class="o">:</span> <span class="s1">&#39;UNARY&#39;</span><span class="p">})</span>
<span class="nx">o</span><span class="p">(</span><span class="s2">&quot;+ Expression&quot;</span><span class="p">,</span> <span class="p">(</span><span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nx">prec</span><span class="o">:</span> <span class="s1">&#39;UNARY&#39;</span><span class="p">})</span>
<span class="nx">o</span> <span class="s2">&quot;-- Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;--&#39;</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;++ Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;++&#39;</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;DELETE Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;delete&#39;</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;TYPEOF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;typeof&#39;</span><span class="p">,</span> <span class="nx">$2</span>
<span class="nx">o</span> <span class="s2">&quot;Expression --&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;--&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Expression ++&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;++&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="kc">true</span>
<span class="nx">o</span> <span class="s2">&quot;Expression * Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;*&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression / Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression % Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;%&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression ? Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression + Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression - Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &lt;&lt; Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&lt;&lt;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &gt;&gt; Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&gt;&gt;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &gt;&gt;&gt; Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&gt;&gt;&gt;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &amp; Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&amp;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression | Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;|&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression ^ Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;^&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &lt;= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&lt;=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &lt; Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&lt;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &gt; Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&gt;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &gt;= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&gt;=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression == Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;==&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression != Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;!=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &amp;&amp; Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&amp;&amp;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression || Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;||&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression OP? Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression MATH Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression SHIFT Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression COMPARE Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression LOGIC Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Value COMPOUND_ASSIGN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Value COMPOUND_ASSIGN INDENT Expression OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;Expression -= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;-=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression += Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;+=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression /= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;/=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression *= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;*=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression %= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;%=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression ||= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;||=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression &amp;&amp;= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&amp;&amp;=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression ?= Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;?=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression INSTANCEOF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;instanceof&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression IN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">InNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression OF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;in&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression ! IN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="k">new</span> <span class="nx">InNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;Expression ! OF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;in&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-66"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-66">#</a> </div> <h2>Precedence</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-67"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-67">#</a> </div> <p>Operators at the top of this list have higher precedence than the ones lower
<span class="nx">o</span> <span class="s2">&quot;Expression INSTANCEOF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;instanceof&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
<span class="nx">o</span> <span class="s2">&quot;Expression UNARY IN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="k">new</span> <span class="nx">InNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;Expression UNARY OF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;in&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
<span class="nx">o</span> <span class="s2">&quot;Expression UNARY INSTANCEOF Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;instanceof&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-67"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-67">#</a> </div> <h2>Precedence</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-68"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-68">#</a> </div> <p>Operators at the top of this list have higher precedence than the ones lower
down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
<pre><code>2 + (3 * 4)
@ -391,26 +374,24 @@ down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
<pre><code>(2 + 3) * 4
</code></pre> </td> <td class="code"> <div class="highlight"><pre><span class="nv">operators = </span><span class="p">[</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;?&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;nonassoc&quot;</span><span class="p">,</span> <span class="s1">&#39;UMINUS&#39;</span><span class="p">,</span> <span class="s1">&#39;UPLUS&#39;</span><span class="p">,</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="s1">&#39;!!&#39;</span><span class="p">,</span> <span class="s1">&#39;~&#39;</span><span class="p">,</span> <span class="s1">&#39;++&#39;</span><span class="p">,</span> <span class="s1">&#39;--&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;*&#39;</span><span class="p">,</span> <span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="s1">&#39;%&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="s1">&#39;NEW&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;nonassoc&quot;</span><span class="p">,</span> <span class="s1">&#39;++&#39;</span><span class="p">,</span> <span class="s1">&#39;--&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;UNARY&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;MATH&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;&lt;&lt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;&gt;&gt;&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;&amp;&#39;</span><span class="p">,</span> <span class="s1">&#39;|&#39;</span><span class="p">,</span> <span class="s1">&#39;^&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;&lt;=&#39;</span><span class="p">,</span> <span class="s1">&#39;&lt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;=&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;DELETE&#39;</span><span class="p">,</span> <span class="s1">&#39;INSTANCEOF&#39;</span><span class="p">,</span> <span class="s1">&#39;TYPEOF&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;SHIFT&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;COMPARE&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;INSTANCEOF&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;==&#39;</span><span class="p">,</span> <span class="s1">&#39;!=&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;&amp;&amp;&#39;</span><span class="p">,</span> <span class="s1">&#39;||&#39;</span><span class="p">,</span> <span class="s1">&#39;OP?&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;-=&#39;</span><span class="p">,</span> <span class="s1">&#39;+=&#39;</span><span class="p">,</span> <span class="s1">&#39;/=&#39;</span><span class="p">,</span> <span class="s1">&#39;*=&#39;</span><span class="p">,</span> <span class="s1">&#39;%=&#39;</span><span class="p">,</span> <span class="s1">&#39;||=&#39;</span><span class="p">,</span> <span class="s1">&#39;&amp;&amp;=&#39;</span><span class="p">,</span> <span class="s1">&#39;?=&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;LOGIC&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;COMPOUND_ASSIGN&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;.&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;INDENT&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;nonassoc&quot;</span><span class="p">,</span> <span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;WHEN&#39;</span><span class="p">,</span> <span class="s1">&#39;LEADING_WHEN&#39;</span><span class="p">,</span> <span class="s1">&#39;IN&#39;</span><span class="p">,</span> <span class="s1">&#39;OF&#39;</span><span class="p">,</span> <span class="s1">&#39;BY&#39;</span><span class="p">,</span> <span class="s1">&#39;THROW&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;FOR&#39;</span><span class="p">,</span> <span class="s1">&#39;WHILE&#39;</span><span class="p">,</span> <span class="s1">&#39;UNTIL&#39;</span><span class="p">,</span> <span class="s1">&#39;LOOP&#39;</span><span class="p">,</span> <span class="s1">&#39;NEW&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;CLASS&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span> <span class="s1">&#39;EXTENDS&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;IF&#39;</span><span class="p">,</span> <span class="s1">&#39;UNLESS&#39;</span><span class="p">,</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">,</span> <span class="s1">&#39;FOR&#39;</span><span class="p">,</span> <span class="s1">&#39;WHILE&#39;</span><span class="p">,</span> <span class="s1">&#39;UNTIL&#39;</span><span class="p">,</span> <span class="s1">&#39;LOOP&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;CLASS&#39;</span><span class="p">,</span> <span class="s1">&#39;EXTENDS&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;=&#39;</span><span class="p">,</span> <span class="s1">&#39;:&#39;</span><span class="p">,</span> <span class="s1">&#39;RETURN&#39;</span><span class="p">]</span>
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;UNLESS&#39;</span><span class="p">,</span> <span class="s1">&#39;IF&#39;</span><span class="p">,</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">]</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-68"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-68">#</a> </div> <h2>Wrapping Up</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-69"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-69">#</a> </div> <p>Finally, now what we have our <strong>grammar</strong> and our <strong>operators</strong>, we can create
<span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span> <span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;UNLESS&#39;</span><span class="p">,</span> <span class="s1">&#39;POST_IF&#39;</span><span class="p">,</span> <span class="s1">&#39;POST_UNLESS&#39;</span><span class="p">]</span>
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-69"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-69">#</a> </div> <h2>Wrapping Up</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-70"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-70">#</a> </div> <p>Finally, now what we have our <strong>grammar</strong> and our <strong>operators</strong>, we can create
our <strong>Jison.Parser</strong>. We do this by processing all of our rules, recording all
terminals (every symbol which does not appear as the name of a rule above)
as "tokens".</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">tokens = </span><span class="p">[]</span>
@ -419,14 +400,13 @@ as "tokens".</p> </td> <td class="code"> <
<span class="k">for</span> <span class="nx">token</span> <span class="k">in</span> <span class="nx">alt</span><span class="p">[</span><span class="mi">0</span><span class="p">].</span><span class="nx">split</span> <span class="s1">&#39; &#39;</span>
<span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="nx">token</span> <span class="nx">unless</span> <span class="nx">grammar</span><span class="p">[</span><span class="nx">token</span><span class="p">]</span>
<span class="nx">alt</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;return #{alt[1]}&quot;</span> <span class="k">if</span> <span class="nx">name</span> <span class="o">is</span> <span class="s1">&#39;Root&#39;</span>
<span class="nx">alt</span></pre></div> </td> </tr> <tr id="section-70"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-70">#</a> </div> <p>Initialize the <strong>Parser</strong> with our list of terminal <strong>tokens</strong>, our <strong>grammar</strong>
<span class="nx">alt</span></pre></div> </td> </tr> <tr id="section-71"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-71">#</a> </div> <p>Initialize the <strong>Parser</strong> with our list of terminal <strong>tokens</strong>, our <strong>grammar</strong>
rules, and the name of the root. Reverse the operators because Jison orders
precedence from low to high, and we have it high to low
(as in <a href="http://dinosaur.compilertools.net/yacc/index.html">Yacc</a>).</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.parser = </span><span class="k">new</span> <span class="nx">Parser</span> <span class="p">{</span>
(as in <a href="http://dinosaur.compilertools.net/yacc/index.html">Yacc</a>).</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.parser = </span><span class="k">new</span> <span class="nx">Parser</span>
<span class="nx">tokens</span><span class="o">:</span> <span class="nx">tokens</span><span class="p">.</span><span class="nx">join</span> <span class="s1">&#39; &#39;</span>
<span class="nx">bnf</span><span class="o">:</span> <span class="nx">grammar</span>
<span class="nx">operators</span><span class="o">:</span> <span class="nx">operators</span><span class="p">.</span><span class="nx">reverse</span><span class="p">()</span>
<span class="nx">startSymbol</span><span class="o">:</span> <span class="s1">&#39;Root&#39;</span>
<span class="p">}</span>
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>