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rebuilding the docs with the fixed highlighter for '@' and regexes.
This commit is contained in:
Jeremy Ashkenas
parent
ad1c5e1884
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59ae79d8fb
6 changed files with 113 additions and 108 deletions
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@ -14,7 +14,7 @@ reduces into the <a href="http://en.wikipedia.org/wiki/Terminal_and_nonterminal_
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<p>If you run the <code>cake build:parser</code> command, Jison constructs a parse table
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from our rules and saves it into <code>lib/parser.js</code>.</p> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-2">#</a> </div> <p>The only dependency is on the <strong>Jison.Parser</strong>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">Parser: </span><span class="nx">require</span><span class="p">(</span><span class="s1">'jison'</span><span class="p">).</span><span class="nx">Parser</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-3">#</a> </div> <h2>Jison DSL</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-4">#</a> </div> <p>Since we're going to be wrapped in a function by Jison in any case, if our
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action immediately returns a value, we can optimize by removing the function
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wrapper and just returning the value directly.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">unwrap: </span><span class="o">/</span><span class="nx">function</span><span class="err">\</span><span class="nx">s</span><span class="o">*</span><span class="err">\</span><span class="p">(</span><span class="err">\</span><span class="p">)</span><span class="err">\</span><span class="nx">s</span><span class="o">*</span><span class="err">\</span><span class="p">{</span><span class="err">\</span><span class="nx">s</span><span class="o">*</span><span class="k">return</span><span class="err">\</span><span class="nx">s</span><span class="o">*</span><span class="p">([</span><span class="err">\</span><span class="nx">s</span><span class="err">\</span><span class="nx">S</span><span class="p">]</span><span class="o">*</span><span class="p">);</span><span class="err">\</span><span class="nx">s</span><span class="o">*</span><span class="err">\</span><span class="p">}</span><span class="o">/</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-5">#</a> </div> <p>Our handy DSL for Jison grammar generation, thanks to
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wrapper and just returning the value directly.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">unwrap: </span><span class="sr">/function\s*\(\)\s*\{\s*return\s*([\s\S]*);\s*\}/</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-5">#</a> </div> <p>Our handy DSL for Jison grammar generation, thanks to
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<a href="http://github.com/creationix">Tim Caswell</a>. For every rule in the grammar,
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we pass the pattern-defining string, the action to run, and extra options,
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optionally. If no action is specified, we simply pass the value of the
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@ -33,14 +33,14 @@ their numeric position, so in this rule:</p>
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for the <code>UNLESS</code> terminal, and <code>$3</code> would be the value of the second
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<code>Expression</code>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">grammar: </span><span class="p">{</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-8">#</a> </div> <p>The <strong>Root</strong> is the top-level node in the syntax tree. Since we parse bottom-up,
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all parsing must end here.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Root: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">Expressions</span><span class="p">()</span>
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<span class="nx">o</span> <span class="s2">"TERMINATOR"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">Expressions</span><span class="p">()</span>
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<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">Expressions</span><span class="p">()</span>
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<span class="nx">o</span> <span class="s2">"TERMINATOR"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">Expressions</span><span class="p">()</span>
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<span class="nx">o</span> <span class="s2">"Expressions"</span>
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<span class="nx">o</span> <span class="s2">"Block TERMINATOR"</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</a> </div> <p>Any list of expressions or method body, seperated by line breaks or
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semicolons.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Expressions: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">"Expression"</span><span class="p">,</span> <span class="o">-></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>
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<span class="nx">o</span> <span class="s2">"Expressions TERMINATOR Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$3</span>
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<span class="nx">o</span> <span class="s2">"Expression"</span><span class="p">,</span> <span class="o">-></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>
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<span class="nx">o</span> <span class="s2">"Expressions TERMINATOR Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$3</span>
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<span class="nx">o</span> <span class="s2">"Expressions TERMINATOR"</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</a> </div> <p>All the different types of expressions in our language. The basic unit of
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CoffeeScript is the <strong>Expression</strong> -- you'll notice that there is no
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@ -91,12 +91,11 @@ through and printed to JavaScript.</p> </td> <td class="
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<span class="nx">o</span> <span class="s2">"ON"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">true</span>
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<span class="nx">o</span> <span class="s2">"OFF"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">false</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-15">#</a> </div> <p>Assignment of a variable, property, or index to a value.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Assign: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">"Assignable ASSIGN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
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<span class="nx">o</span> <span class="s2">"Assignable ASSIGN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-16"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-16">#</a> </div> <p>Assignment when it happens within an object literal. The difference from
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the ordinary <strong>Assign</strong> is that these allow numbers and strings as keys.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">AssignObj: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">"Identifier ASSIGN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="k">new</span> <span class="nx">ValueNode</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="s1">'object'</span>
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<span class="nx">o</span> <span class="s2">"AlphaNumeric ASSIGN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="k">new</span> <span class="nx">ValueNode</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="s1">'object'</span>
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<span class="nx">o</span> <span class="s2">"ThisProperty ASSIGN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="k">new</span> <span class="nx">ValueNode</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="s1">'this'</span>
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<span class="nx">o</span> <span class="s2">"Comment"</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-17"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-17">#</a> </div> <p>A return statement from a function body.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Return: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">"RETURN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ReturnNode</span> <span class="nx">$2</span>
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@ -159,56 +158,63 @@ or by array index or slice.</p> </td> <td class="code">
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<span class="nx">o</span> <span class="s2">"{ IndentedAssignList }"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ObjectNode</span> <span class="nx">$2</span>
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<span class="nx">o</span> <span class="s2">"{ AssignList , }"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ObjectNode</span> <span class="nx">$2</span>
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<span class="nx">o</span> <span class="s2">"{ IndentedAssignList , }"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ObjectNode</span> <span class="nx">$2</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-31"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-31">#</a> </div> <p>Class definitions have optional bodies of prototype property assignments,
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and optional references to the superclass.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Class: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span>
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable EXTENDS Value"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span>
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable IndentedAssignList"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$3</span>
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable EXTENDS Value IndentedAssignList"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$5</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-32"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-32">#</a> </div> <p>Assignment of properties within an object literal can be separated by
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-31"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-31">#</a> </div> <p>Assignment of properties within an object literal can be separated by
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comma, as in JavaScript, or simply by newline.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">AssignList: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="p">[]</span>
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<span class="nx">o</span> <span class="s2">"AssignObj"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
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<span class="nx">o</span> <span class="s2">"AssignList , AssignObj"</span><span class="p">,</span> <span class="o">-></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>
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<span class="nx">o</span> <span class="s2">"AssignList TERMINATOR AssignObj"</span><span class="p">,</span> <span class="o">-></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>
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<span class="nx">o</span> <span class="s2">"AssignList , TERMINATOR AssignObj"</span><span class="p">,</span> <span class="o">-></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>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-33"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-33">#</a> </div> <p>An <strong>AssignList</strong> within a block indentation.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">IndentedAssignList: </span><span class="p">[</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-32"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-32">#</a> </div> <p>An <strong>AssignList</strong> within a block indentation.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">IndentedAssignList: </span><span class="p">[</span>
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<span class="nx">o</span> <span class="s2">"INDENT AssignList OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span>
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<span class="nx">o</span> <span class="s2">"INDENT AssignList , OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-34"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-34">#</a> </div> <p>The three flavors of function call: normal, object instantiation with <code>new</code>,
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-33"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-33">#</a> </div> <p>Class definitions have optional bodies of prototype property assignments,
|
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and optional references to the superclass.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Class: </span><span class="p">[</span>
|
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span>
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable EXTENDS Value"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span>
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable INDENT ClassBody OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$4</span>
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<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable EXTENDS Value INDENT ClassBody OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$6</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-34"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-34">#</a> </div> <p>Assignments that can happen directly inside a class declaration.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ClassAssign: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"AssignObj"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span>
|
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<span class="nx">o</span> <span class="s2">"ThisProperty ASSIGN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="k">new</span> <span class="nx">ValueNode</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="s1">'this'</span>
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||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-35"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-35">#</a> </div> <p>A list of assignments to a class.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ClassBody: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="p">[]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ClassAssign"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ClassBody TERMINATOR ClassAssign"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">$3</span>
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<span class="p">]</span></pre></div> </td> </tr> <tr id="section-36"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-36">#</a> </div> <p>The three flavors of function call: normal, object instantiation with <code>new</code>,
|
||||
and calling <code>super()</code></p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Call: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Invocation"</span>
|
||||
<span class="nx">o</span> <span class="s2">"NEW Invocation"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span><span class="p">.</span><span class="nx">new_instance</span><span class="p">()</span>
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<span class="nx">o</span> <span class="s2">"Super"</span>
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||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-35"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-35">#</a> </div> <p>Binds a function call to a context and/or arguments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Curry: </span><span class="p">[</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-37"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-37">#</a> </div> <p>Binds a function call to a context and/or arguments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Curry: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Value <- Arguments"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CurryNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
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||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-36"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-36">#</a> </div> <p>Extending an object by setting its prototype chain to reference a parent
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-38"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-38">#</a> </div> <p>Extending an object by setting its prototype chain to reference a parent
|
||||
object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Extends: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SimpleAssignable EXTENDS Value"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ExtendsNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-37"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-37">#</a> </div> <p>Ordinary function invocation, or a chained series of calls.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Invocation: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SimpleAssignable EXTENDS Value"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ExtendsNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-39"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-39">#</a> </div> <p>Ordinary function invocation, or a chained series of calls.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Invocation: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Value Arguments"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"Invocation Arguments"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-38"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-38">#</a> </div> <p>The list of arguments to a function call.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Arguments: </span><span class="p">[</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-40"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-40">#</a> </div> <p>The list of arguments to a function call.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Arguments: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"CALL_START ArgList CALL_END"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"CALL_START ArgList , CALL_END"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-39"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-39">#</a> </div> <p>Calling super.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Super: </span><span class="p">[</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-41"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-41">#</a> </div> <p>Calling super.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Super: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SUPER CALL_START ArgList CALL_END"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="s1">'super'</span><span class="p">,</span> <span class="nx">$3</span>
|
||||
<span class="nx">o</span> <span class="s2">"SUPER CALL_START ArgList , CALL_END"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="s1">'super'</span><span class="p">,</span> <span class="nx">$3</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-40"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-40">#</a> </div> <p>A reference to the <em>this</em> current object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">This: </span><span class="p">[</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-42"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-42">#</a> </div> <p>A reference to the <em>this</em> current object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">This: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"THIS"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">'this'</span>
|
||||
<span class="nx">o</span> <span class="s2">"@"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">'this'</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-41"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-41">#</a> </div> <p>A reference to a property on <em>this</em>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ThisProperty: </span><span class="p">[</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-43"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-43">#</a> </div> <p>A reference to a property on <em>this</em>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ThisProperty: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"@ Identifier"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span><span class="p">(</span><span class="s1">'this'</span><span class="p">),</span> <span class="p">[</span><span class="k">new</span> <span class="nx">AccessorNode</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-42"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-42">#</a> </div> <p>The CoffeeScript range literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Range: </span><span class="p">[</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-44"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-44">#</a> </div> <p>The CoffeeScript range literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Range: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"[ Expression . . Expression ]"</span><span class="p">,</span> <span class="o">-></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">"[ Expression . . . Expression ]"</span><span class="p">,</span> <span class="o">-></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="p">]</span></pre></div> </td> </tr> <tr id="section-43"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-43">#</a> </div> <p>The slice literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Slice: </span><span class="p">[</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-45"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-45">#</a> </div> <p>The slice literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Slice: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"INDEX_START Expression . . Expression INDEX_END"</span><span class="p">,</span> <span class="o">-></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">"INDEX_START Expression . . . Expression INDEX_END"</span><span class="p">,</span> <span class="o">-></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="p">]</span></pre></div> </td> </tr> <tr id="section-44"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-44">#</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="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 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">"[ ArgList ]"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ArrayNode</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"[ ArgList , ]"</span><span class="p">,</span> <span class="o">-></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-45"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-45">#</a> </div> <p>The <strong>ArgList</strong> is both the list of objects passed into a function call,
|
||||
<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 <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="nv">ArgList: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="p">[]</span>
|
||||
|
|
@ -220,46 +226,46 @@ as well as the contents of an array literal
|
|||
<span class="nx">o</span> <span class="s2">"ArgList , INDENT Expression"</span><span class="p">,</span> <span class="o">-></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">"ArgList OUTDENT"</span>
|
||||
<span class="nx">o</span> <span class="s2">"ArgList , OUTDENT"</span>
|
||||
<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>Just simple, comma-separated, required arguments (no fancy syntax). We need
|
||||
<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>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="nv">SimpleArgs: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression"</span>
|
||||
<span class="nx">o</span> <span class="s2">"SimpleArgs , Expression"</span><span class="p">,</span> <span class="o">-></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-47"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-47">#</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="nv">Try: </span><span class="p">[</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>The variants of <em>try/catch/finally</em> exception handling blocks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Try: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"TRY Block Catch"</span><span class="p">,</span> <span class="o">-></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">"TRY Block FINALLY Block"</span><span class="p">,</span> <span class="o">-></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">"TRY Block Catch FINALLY Block"</span><span class="p">,</span> <span class="o">-></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-48"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-48">#</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="nv">Catch: </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>A catch clause names its error and runs a block of code.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Catch: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"CATCH Identifier Block"</span><span class="p">,</span> <span class="o">-></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-49"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-49">#</a> </div> <p>Throw an exception object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Throw: </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>Throw an exception object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Throw: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"THROW Expression"</span><span class="p">,</span> <span class="o">-></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-50"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-50">#</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-52"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-52">#</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="nv">Parenthetical: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"( Expression )"</span><span class="p">,</span> <span class="o">-></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-51"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-51">#</a> </div> <p>A language extension to CoffeeScript from the outside. We simply pass
|
||||
<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>A language extension to CoffeeScript from the outside. We simply pass
|
||||
it through unaltered.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">Extension: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"EXTENSION"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">yytext</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>The condition portion of a while loop.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">WhileSource: </span><span class="p">[</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="nv">WhileSource: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"WHILE Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"WHILE Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="p">{</span><span class="nx">filter</span> <span class="o">:</span> <span class="nx">$4</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>The while loop can either be normal, with a block of expressions to execute,
|
||||
<span class="nx">o</span> <span class="s2">"WHILE Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="p">{</span><span class="nv">filter : </span><span class="nx">$4</span><span class="p">}</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,
|
||||
or postfix, with a single expression. There is no do..while.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">While: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"WhileSource Block"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">add_body</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression WhileSource"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span><span class="p">.</span><span class="nx">add_body</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="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>Array, object, and range comprehensions, at the most generic level.
|
||||
<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.
|
||||
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="nv">For: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression FOR ForVariables ForSource"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</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">"FOR ForVariables ForSource Block"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">$2</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="mi">1</span><span class="p">]</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>An array or range comprehension has variables for the current element and
|
||||
<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 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="nv">ForVariables: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Identifier"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"Identifier , Identifier"</span><span class="p">,</span> <span class="o">-></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-56"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-56">#</a> </div> <p>The source of a comprehension is an array or object with an optional filter
|
||||
<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>The source of a comprehension is an array or object with an optional filter
|
||||
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="nv">ForSource: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">}</span>
|
||||
|
|
@ -269,34 +275,34 @@ in fixed-size increments.</p> </td> <td class="code">
|
|||
<span class="nx">o</span> <span class="s2">"IN Expression BY Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">step: </span> <span class="nx">$4</span><span class="p">}</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression WHEN Expression BY Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">filter: </span><span class="nx">$4</span><span class="p">;</span> <span class="nv">step: </span> <span class="nx">$6</span><span class="p">}</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression BY Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">step: </span> <span class="nx">$4</span><span class="p">,</span> <span class="nv">filter: </span><span class="nx">$6</span><span class="p">}</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>The CoffeeScript switch/when/else block replaces the JavaScript
|
||||
<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 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="nv">Switch: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SWITCH Expression INDENT Whens OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$4</span><span class="p">.</span><span class="nx">rewrite_condition</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"SWITCH Expression INDENT Whens ELSE Block OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$4</span><span class="p">.</span><span class="nx">rewrite_condition</span><span class="p">(</span><span class="nx">$2</span><span class="p">).</span><span class="nx">add_else</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</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>The inner list of whens is left recursive. At code-generation time, the
|
||||
<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 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="nv">Whens: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"When"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Whens When"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$2</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>An individual <strong>When</strong> clause, with action.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">When: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"LEADING_WHEN SimpleArgs Block"</span><span class="p">,</span> <span class="o">-></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="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</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>An individual <strong>When</strong> clause, with action.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">When: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"LEADING_WHEN SimpleArgs Block"</span><span class="p">,</span> <span class="o">-></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="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
|
||||
<span class="nx">o</span> <span class="s2">"LEADING_WHEN SimpleArgs Block TERMINATOR"</span><span class="p">,</span> <span class="o">-></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="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
|
||||
<span class="nx">o</span> <span class="s2">"Comment TERMINATOR When"</span><span class="p">,</span> <span class="o">-></span> <span class="nv">$3.comment: </span><span class="nx">$1</span><span class="p">;</span> <span class="nx">$3</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 most basic form of <em>if</em> is a condition and an action. The following
|
||||
<span class="nx">o</span> <span class="s2">"Comment TERMINATOR When"</span><span class="p">,</span> <span class="o">-></span> <span class="nv">$3.comment: </span><span class="nx">$1</span><span class="p">;</span> <span class="nx">$3</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>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="nv">IfStart: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IF Expression Block"</span><span class="p">,</span> <span class="o">-></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">"IfStart ElsIf"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">add_else</span> <span class="nx">$2</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>An <strong>IfStart</strong> can optionally be followed by an else block.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">IfBlock: </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 <strong>IfStart</strong> can optionally be followed by an else block.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">IfBlock: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IfStart"</span>
|
||||
<span class="nx">o</span> <span class="s2">"IfStart ELSE Block"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">add_else</span> <span class="nx">$3</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 <em>else if</em> continuation of the <em>if</em> expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ElsIf: </span><span class="p">[</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>An <em>else if</em> continuation of the <em>if</em> expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ElsIf: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"ELSE IF Expression Block"</span><span class="p">,</span> <span class="o">-></span> <span class="p">(</span><span class="k">new</span> <span class="nx">IfNode</span><span class="p">(</span><span class="nx">$3</span><span class="p">,</span> <span class="nx">$4</span><span class="p">)).</span><span class="nx">force_statement</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>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="nv">If: </span><span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IfBlock"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression IF Expression"</span><span class="p">,</span> <span class="o">-></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="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression UNLESS Expression"</span><span class="p">,</span> <span class="o">-></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="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">invert: </span><span class="kc">true</span><span class="p">}</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>Arithmetic and logical operators, working on one or more operands.
|
||||
<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>
|
||||
|
|
@ -353,7 +359,7 @@ rules are necessary.</p> </td> <td class="code">
|
|||
<span class="nx">o</span> <span class="s2">"Expression IN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'in'</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-65"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-65">#</a> </div> <h2>Precedence</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-66"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-66">#</a> </div> <p>Operators at the top of this list have higher precedence than the ones lower
|
||||
<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)
|
||||
|
|
@ -382,7 +388,7 @@ down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
|
|||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'EXTENDS'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'ASSIGN'</span><span class="p">,</span> <span class="s1">'RETURN'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'->'</span><span class="p">,</span> <span class="s1">'=>'</span><span class="p">,</span> <span class="s1">'<-'</span><span class="p">,</span> <span class="s1">'UNLESS'</span><span class="p">,</span> <span class="s1">'IF'</span><span class="p">,</span> <span class="s1">'ELSE'</span><span class="p">,</span> <span class="s1">'WHILE'</span><span class="p">]</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>Wrapping Up</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>Finally, now what we have our <strong>grammar</strong> and our <strong>operators</strong>, we can create
|
||||
<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>
|
||||
|
|
@ -391,7 +397,7 @@ 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">' '</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">"return ${alt[1]}"</span> <span class="k">if</span> <span class="nx">name</span> <span class="o">is</span> <span class="s1">'Root'</span>
|
||||
<span class="nx">alt</span></pre></div> </td> </tr> <tr id="section-69"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-69">#</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
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precedence from low to high, and we have it high to low
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(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>
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