mirror of
https://github.com/jashkenas/coffeescript.git
synced 2022-11-09 12:23:24 -05:00
stylistics: removing a bunch of unecessary parentheses
This commit is contained in:
Jeremy Ashkenas
parent
aae2405de4
commit
d3a51fbfa1
6 changed files with 88 additions and 114 deletions
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@ -30,7 +30,7 @@ of source.</p>
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<p>Before returning the token stream, run it through the <a href="rewriter.html">Rewriter</a>
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unless explicitly asked not to.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">tokenize: </span><span class="p">(</span><span class="nx">code</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-></span>
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<span class="nx">code</span> <span class="o">:</span> <span class="nx">code</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/(\r|\s+$)/g</span><span class="p">,</span> <span class="s1">''</span><span class="p">)</span>
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<span class="nx">code</span> <span class="o">:</span> <span class="nx">code</span><span class="p">.</span><span class="nx">replace</span> <span class="o">/</span><span class="p">(</span><span class="err">\</span><span class="nx">r</span><span class="o">|</span><span class="err">\</span><span class="nx">s</span><span class="o">+</span><span class="nx">$</span><span class="p">)</span><span class="o">/</span><span class="nx">g</span><span class="p">,</span> <span class="s1">''</span>
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<span class="nx">o</span> <span class="o">:</span> <span class="nx">options</span> <span class="o">or</span> <span class="p">{}</span>
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<span class="err">@</span><span class="nx">code</span> <span class="o">:</span> <span class="nx">code</span> <span class="c1"># The remainder of the source code.</span>
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<span class="err">@</span><span class="nx">i</span> <span class="o">:</span> <span class="mi">0</span> <span class="c1"># Current character position we're parsing.</span>
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@ -39,7 +39,7 @@ unless explicitly asked not to.</p> </td> <td class="cod
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<span class="err">@</span><span class="nx">indents</span> <span class="o">:</span> <span class="p">[]</span> <span class="c1"># The stack of all current indentation levels.</span>
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<span class="err">@</span><span class="nx">tokens</span> <span class="o">:</span> <span class="p">[]</span> <span class="c1"># Stream of parsed tokens in the form ['TYPE', value, line]</span>
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<span class="k">while</span> <span class="err">@</span><span class="nx">i</span> <span class="o"><</span> <span class="err">@</span><span class="nx">code</span><span class="p">.</span><span class="nx">length</span>
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<span class="err">@</span><span class="nv">chunk: </span><span class="err">@</span><span class="nx">code</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="err">@</span><span class="nx">i</span><span class="p">)</span>
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<span class="err">@</span><span class="nv">chunk: </span><span class="err">@</span><span class="nx">code</span><span class="p">.</span><span class="nx">slice</span> <span class="err">@</span><span class="nx">i</span>
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<span class="err">@</span><span class="nx">extract_next_token</span><span class="p">()</span>
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<span class="err">@</span><span class="nx">close_indentation</span><span class="p">()</span>
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<span class="k">return</span> <span class="err">@</span><span class="nx">tokens</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">rewrite</span> <span class="o">is</span> <span class="kc">off</span>
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@ -68,7 +68,7 @@ referenced as property names here, so you can still do <code>jQuery.is()</code>
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though <code>is</code> means <code>===</code> otherwise.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">identifier_token: </span><span class="o">-></span>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">id: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">IDENTIFIER</span><span class="p">,</span> <span class="mi">1</span>
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<span class="err">@</span><span class="nx">name_access_type</span><span class="p">()</span>
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<span class="nv">accessed: </span><span class="nx">include</span> <span class="nx">ACCESSORS</span><span class="p">,</span> <span class="err">@</span><span class="nx">tag</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
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<span class="nv">accessed: </span><span class="nx">include</span> <span class="nx">ACCESSORS</span><span class="p">,</span> <span class="err">@</span><span class="nx">tag</span> <span class="mi">0</span>
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<span class="nv">tag: </span><span class="s1">'IDENTIFIER'</span>
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<span class="nv">tag: </span><span class="nx">id</span><span class="p">.</span><span class="nx">toUpperCase</span><span class="p">()</span> <span class="k">if</span> <span class="o">not</span> <span class="nx">accessed</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">KEYWORDS</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
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<span class="err">@</span><span class="nx">identifier_error</span> <span class="nx">id</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">RESERVED</span><span class="p">,</span> <span class="nx">id</span>
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@ -76,8 +76,8 @@ though <code>is</code> means <code>===</code> otherwise.</p> </td>
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<span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">id</span><span class="p">.</span><span class="nx">length</span>
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<span class="k">if</span> <span class="o">not</span> <span class="nx">accessed</span>
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<span class="nv">tag: id: </span><span class="nx">CONVERSIONS</span><span class="p">[</span><span class="nx">id</span><span class="p">]</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">COFFEE_ALIASES</span><span class="p">,</span> <span class="nx">id</span>
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<span class="k">return</span> <span class="err">@</span><span class="nx">tag_half_assignment</span><span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="k">if</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'ASSIGN'</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
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<span class="err">@</span><span class="nx">token</span><span class="p">(</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
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<span class="k">return</span> <span class="err">@</span><span class="nx">tag_half_assignment</span> <span class="nx">tag</span> <span class="k">if</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'ASSIGN'</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
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<span class="err">@</span><span class="nx">token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">id</span>
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<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-11"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-11">#</a> </div> <p>Matches numbers, including decimals, hex, and exponential notation.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">number_token: </span><span class="o">-></span>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">number: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">NUMBER</span><span class="p">,</span> <span class="mi">1</span>
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<span class="err">@</span><span class="nx">token</span> <span class="s1">'NUMBER'</span><span class="p">,</span> <span class="nx">number</span>
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@ -88,13 +88,13 @@ are balanced within the string's contents, and within nested interpolations.</p>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">string:</span>
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<span class="err">@</span><span class="nx">balanced_token</span><span class="p">([</span><span class="s1">'"'</span><span class="p">,</span> <span class="s1">'"'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'${'</span><span class="p">,</span> <span class="s1">'}'</span><span class="p">])</span> <span class="o">or</span>
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<span class="err">@</span><span class="nx">balanced_token</span> <span class="p">[</span><span class="s2">"'"</span><span class="p">,</span> <span class="s2">"'"</span><span class="p">]</span>
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<span class="err">@</span><span class="nx">interpolate_string</span> <span class="nx">string</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">STRING_NEWLINES</span><span class="p">,</span> <span class="s2">" \\\n"</span><span class="p">)</span>
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<span class="err">@</span><span class="nx">interpolate_string</span> <span class="nx">string</span><span class="p">.</span><span class="nx">replace</span> <span class="nx">STRING_NEWLINES</span><span class="p">,</span> <span class="s2">" \\\n"</span>
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<span class="err">@</span><span class="nv">line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">string</span><span class="p">,</span> <span class="s2">"\n"</span>
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<span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">string</span><span class="p">.</span><span class="nx">length</span>
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<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-13">#</a> </div> <p>Matches heredocs, adjusting indentation to the correct level, as heredocs
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preserve whitespace, but ignore indentation to the left.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">heredoc_token: </span><span class="o">-></span>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">match: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">HEREDOC</span><span class="p">)</span>
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<span class="nv">quote: </span><span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">substr</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
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<span class="nv">quote: </span><span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">substr</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
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<span class="nv">doc: </span><span class="err">@</span><span class="nx">sanitize_heredoc</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">or</span> <span class="nx">match</span><span class="p">[</span><span class="mi">4</span><span class="p">],</span> <span class="nx">quote</span>
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<span class="err">@</span><span class="nx">interpolate_string</span> <span class="s2">"$quote$doc$quote"</span>
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<span class="err">@</span><span class="nv">line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s2">"\n"</span>
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@ -102,7 +102,7 @@ preserve whitespace, but ignore indentation to the left.</p> </td>
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<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-14"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-14">#</a> </div> <p>Matches JavaScript interpolated directly into the source via backticks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">js_token: </span><span class="o">-></span>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nx">starts</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">,</span> <span class="s1">'`'</span>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">script: </span><span class="err">@</span><span class="nx">balanced_token</span> <span class="p">[</span><span class="s1">'`'</span><span class="p">,</span> <span class="s1">'`'</span><span class="p">]</span>
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<span class="err">@</span><span class="nx">token</span> <span class="s1">'JS'</span><span class="p">,</span> <span class="nx">script</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">JS_CLEANER</span><span class="p">,</span> <span class="s1">''</span><span class="p">)</span>
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<span class="err">@</span><span class="nx">token</span> <span class="s1">'JS'</span><span class="p">,</span> <span class="nx">script</span><span class="p">.</span><span class="nx">replace</span> <span class="nx">JS_CLEANER</span><span class="p">,</span> <span class="s1">''</span>
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<span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">script</span><span class="p">.</span><span class="nx">length</span>
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<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-15">#</a> </div> <p>Matches regular expression literals. Lexing regular expressions is difficult
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to distinguish from division, so we borrow some basic heuristics from
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@ -111,7 +111,7 @@ borrow interpolation from <code>@interpolate_string</code>.</p> </td
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">REGEX_START</span>
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<span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">NOT_REGEX</span><span class="p">,</span> <span class="err">@</span><span class="nx">tag</span><span class="p">()</span>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">regex: </span><span class="err">@</span><span class="nx">balanced_token</span> <span class="p">[</span><span class="s1">'/'</span><span class="p">,</span> <span class="s1">'/'</span><span class="p">]</span>
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<span class="nv">regex: </span><span class="o">+</span> <span class="p">(</span><span class="nv">flags: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="nx">regex</span><span class="p">.</span><span class="nx">length</span><span class="p">).</span><span class="nx">match</span><span class="p">(</span><span class="nx">REGEX_FLAGS</span><span class="p">))</span>
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<span class="nv">regex: </span><span class="o">+</span> <span class="p">(</span><span class="nv">flags: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="nx">regex</span><span class="p">.</span><span class="nx">length</span><span class="p">).</span><span class="nx">match</span> <span class="nx">REGEX_FLAGS</span><span class="p">)</span>
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<span class="k">if</span> <span class="nx">regex</span><span class="p">.</span><span class="nx">match</span> <span class="nx">REGEX_INTERPOLATION</span>
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<span class="nv">str: </span><span class="nx">regex</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">1</span><span class="p">).</span><span class="nx">split</span><span class="p">(</span><span class="s1">'/'</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
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<span class="nv">str: </span><span class="nx">str</span><span class="p">.</span><span class="nx">replace</span> <span class="nx">REGEX_ESCAPE</span><span class="p">,</span> <span class="p">(</span><span class="nx">escaped</span><span class="p">)</span> <span class="o">-></span> <span class="s1">'\\'</span> <span class="o">+</span> <span class="nx">escaped</span>
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@ -127,7 +127,7 @@ balanced (ie. strings, JS literals).</p> </td> <td class
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so they're treated as real tokens, like any other part of the language.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">comment_token: </span><span class="o">-></span>
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<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">comment: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">COMMENT</span><span class="p">,</span> <span class="mi">1</span>
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<span class="err">@</span><span class="nv">line: </span><span class="o">+</span> <span class="p">(</span><span class="nx">comment</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">MULTILINER</span><span class="p">)</span> <span class="o">or</span> <span class="p">[]).</span><span class="nx">length</span>
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<span class="nv">lines: </span><span class="nx">compact</span> <span class="nx">comment</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">COMMENT_CLEANER</span><span class="p">,</span> <span class="s1">''</span><span class="p">).</span><span class="nx">split</span><span class="p">(</span><span class="nx">MULTILINER</span><span class="p">)</span>
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<span class="nv">lines: </span><span class="nx">compact</span> <span class="nx">comment</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">COMMENT_CLEANER</span><span class="p">,</span> <span class="s1">''</span><span class="p">).</span><span class="nx">split</span> <span class="nx">MULTILINER</span>
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<span class="nv">i: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
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<span class="k">if</span> <span class="err">@</span><span class="nx">unfinished</span><span class="p">()</span>
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<span class="nv">i: </span><span class="o">-</span> <span class="mi">1</span> <span class="k">while</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">include</span> <span class="nx">LINE_BREAK</span><span class="p">,</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span>
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@ -153,7 +153,7 @@ can close multiple indents, so we need to know how far in we happen to be.</p>
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<span class="nv">no_newlines: </span><span class="nx">next_character</span> <span class="o">is</span> <span class="s1">'.'</span> <span class="o">or</span> <span class="err">@</span><span class="nx">unfinished</span><span class="p">()</span>
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<span class="k">if</span> <span class="nx">size</span> <span class="o">is</span> <span class="err">@</span><span class="nx">indent</span>
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<span class="k">return</span> <span class="err">@</span><span class="nx">suppress_newlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">no_newlines</span>
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<span class="k">return</span> <span class="err">@</span><span class="nx">newline_token</span><span class="p">(</span><span class="nx">indent</span><span class="p">)</span>
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<span class="k">return</span> <span class="err">@</span><span class="nx">newline_token</span> <span class="nx">indent</span>
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<span class="k">else</span> <span class="k">if</span> <span class="nx">size</span> <span class="o">></span> <span class="err">@</span><span class="nx">indent</span>
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<span class="k">return</span> <span class="err">@</span><span class="nx">suppress_newlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">no_newlines</span>
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<span class="nv">diff: </span><span class="nx">size</span> <span class="o">-</span> <span class="err">@</span><span class="nx">indent</span>
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@ -185,14 +185,14 @@ Multi-character operators are also literal tokens, so that Jison can assign
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the proper order of operations. There are some symbols that we tag specially
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here. <code>;</code> and newlines are both treated as a <code>TERMINATOR</code>, we distinguish
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parentheses that indicate a method call from regular parentheses, and so on.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">literal_token: </span><span class="o">-></span>
|
||||
<span class="nv">match: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">OPERATOR</span><span class="p">)</span>
|
||||
<span class="nv">match: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">OPERATOR</span>
|
||||
<span class="nv">value: </span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="nv">space: </span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
|
||||
<span class="err">@</span><span class="nx">tag_parameters</span><span class="p">()</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">and</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">CODE</span><span class="p">)</span>
|
||||
<span class="nv">value: </span><span class="o">or</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="err">@</span><span class="nx">tag_parameters</span><span class="p">()</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">and</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span> <span class="nx">CODE</span>
|
||||
<span class="nv">value: </span><span class="o">or</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">substr</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="nv">prev_spaced: </span><span class="err">@</span><span class="nx">prev</span><span class="p">()</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">().</span><span class="nx">spaced</span>
|
||||
<span class="nv">tag: </span><span class="nx">value</span>
|
||||
<span class="k">if</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">ASSIGNMENT</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span> <span class="nx">ASSIGNMENT</span>
|
||||
<span class="nv">tag: </span><span class="s1">'ASSIGN'</span>
|
||||
<span class="err">@</span><span class="nx">assignment_error</span><span class="p">()</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">JS_FORBIDDEN</span><span class="p">,</span> <span class="err">@</span><span class="nx">value</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">';'</span>
|
||||
|
|
@ -208,7 +208,7 @@ parentheses that indicate a method call from regular parentheses, and so on.</p>
|
|||
<span class="nv">tag: </span><span class="s1">'CALL_START'</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">'('</span>
|
||||
<span class="nv">tag: </span><span class="s1">'INDEX_START'</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">'['</span>
|
||||
<span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">value</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="k">return</span> <span class="err">@</span><span class="nx">tag_half_assignment</span><span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="k">if</span> <span class="nx">space</span> <span class="o">and</span> <span class="nx">prev_spaced</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'ASSIGN'</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
|
||||
<span class="k">return</span> <span class="err">@</span><span class="nx">tag_half_assignment</span> <span class="nx">tag</span> <span class="k">if</span> <span class="nx">space</span> <span class="o">and</span> <span class="nx">prev_spaced</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'ASSIGN'</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
|
||||
<span class="err">@</span><span class="nx">token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-24"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-24">#</a> </div> <h2>Token Manipulators</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-25"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-25">#</a> </div> <p>As we consume a new <code>IDENTIFIER</code>, look at the previous token to determine
|
||||
if it's a special kind of accessor.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">name_access_type: </span><span class="o">-></span>
|
||||
|
|
@ -233,14 +233,14 @@ parameters specially in order to make things easier for the parser.</p>
|
|||
<span class="nv">i: </span><span class="mi">0</span>
|
||||
<span class="k">while</span> <span class="kc">true</span>
|
||||
<span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span> <span class="nx">i</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="o">not</span> <span class="nx">tok</span>
|
||||
<span class="k">switch</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">when</span> <span class="s1">'IDENTIFIER'</span> <span class="k">then</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">'PARAM'</span>
|
||||
<span class="k">when</span> <span class="s1">')'</span> <span class="k">then</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">'PARAM_END'</span>
|
||||
<span class="k">when</span> <span class="s1">'('</span> <span class="k">then</span> <span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">'PARAM_START'</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-29"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-29">#</a> </div> <p>Close up all remaining open blocks at the end of the file.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">close_indentation: </span><span class="o">-></span>
|
||||
<span class="err">@</span><span class="nx">outdent_token</span><span class="p">(</span><span class="err">@</span><span class="nx">indent</span><span class="p">)</span></pre></div> </td> </tr> <tr id="section-30"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-30">#</a> </div> <p>The error for when you try to use a forbidden word in JavaScript as
|
||||
<span class="err">@</span><span class="nx">outdent_token</span> <span class="err">@</span><span class="nx">indent</span></pre></div> </td> </tr> <tr id="section-30"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-30">#</a> </div> <p>The error for when you try to use a forbidden word in JavaScript as
|
||||
an identifier.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">identifier_error: </span><span class="p">(</span><span class="nx">word</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">"SyntaxError: Reserved word \"$word\" on line ${@line + 1}"</span></pre></div> </td> </tr> <tr id="section-31"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-31">#</a> </div> <p>The error for when you try to assign to a reserved word in JavaScript,
|
||||
like "function" or "default".</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">assignment_error: </span><span class="o">-></span>
|
||||
|
|
@ -260,7 +260,7 @@ token stream.</p> </td> <td class="code">
|
|||
<span class="k">else</span>
|
||||
<span class="nv">lexer: </span> <span class="k">new</span> <span class="nx">Lexer</span><span class="p">()</span>
|
||||
<span class="nv">tokens: </span> <span class="p">[]</span>
|
||||
<span class="nv">quote: </span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">quote: </span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="p">[</span><span class="nx">i</span><span class="p">,</span> <span class="nx">pi</span><span class="p">]</span><span class="o">:</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span>
|
||||
<span class="k">while</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">str</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
|
||||
<span class="k">if</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="s1">'\\'</span><span class="p">,</span> <span class="nx">i</span>
|
||||
|
|
@ -297,16 +297,16 @@ token stream.</p> </td> <td class="code">
|
|||
<span class="err">@</span><span class="nx">token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span>
|
||||
<span class="err">@</span><span class="nx">token</span> <span class="s1">'+'</span><span class="p">,</span> <span class="s1">'+'</span> <span class="k">if</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
|
||||
<span class="nx">tokens</span></pre></div> </td> </tr> <tr id="section-33"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-33">#</a> </div> <h2>Helpers</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-34"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-34">#</a> </div> <p>Add a token to the results, taking note of the line number.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">token: </span><span class="p">(</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span><span class="p">([</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="err">@</span><span class="nx">line</span><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>Peek at a tag in the current token stream.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">tag: </span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="err">@</span><span class="nx">line</span><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>Peek at a tag in the current token stream.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">tag: </span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span> <span class="nx">index</span>
|
||||
<span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="nx">tag</span> <span class="k">if</span> <span class="nx">tag</span><span class="o">?</span>
|
||||
<span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><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>Peek at a value in the current token stream.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">value: </span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">val</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span> <span class="nx">index</span>
|
||||
<span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="nx">val</span> <span class="k">if</span> <span class="nx">val</span><span class="o">?</span>
|
||||
<span class="nx">tok</span><span class="p">[</span><span class="mi">1</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>Peek at a previous token, entire.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">prev: </span><span class="p">(</span><span class="nx">index</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="p">(</span><span class="nx">index</span> <span class="o">or</span> <span class="mi">1</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>Attempt to match a string against the current chunk, returning the indexed
|
||||
match if successful, and <code>false</code> otherwise.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">match: </span><span class="p">(</span><span class="nx">regex</span><span class="p">,</span> <span class="nx">index</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">m: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">regex</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">m: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">regex</span>
|
||||
<span class="k">if</span> <span class="nx">m</span> <span class="k">then</span> <span class="nx">m</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span> <span class="k">else</span> <span class="kc">false</span></pre></div> </td> </tr> <tr id="section-39"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-39">#</a> </div> <p>Are we in the midst of an unfinished expression?</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">unfinished: </span><span class="o">-></span>
|
||||
<span class="nv">prev: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
|
||||
<span class="err">@</span><span class="nx">value</span><span class="p">()</span> <span class="o">and</span> <span class="err">@</span><span class="nx">value</span><span class="p">().</span><span class="nx">match</span> <span class="o">and</span> <span class="err">@</span><span class="nx">value</span><span class="p">().</span><span class="nx">match</span><span class="p">(</span><span class="nx">NO_NEWLINE</span><span class="p">)</span> <span class="o">and</span>
|
||||
|
|
|
|||
|
|
@ -72,7 +72,7 @@ a pure statement?</p> </td> <td class="code">
|
|||
<span class="nx">node</span><span class="p">.</span><span class="nx">traverse</span> <span class="nx">block</span> <span class="k">if</span> <span class="nx">node</span><span class="p">.</span><span class="nx">traverse</span></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-15">#</a> </div> <p><code>toString</code> representation of the node, for inspecting the parse tree.
|
||||
This is what <code>coffee --nodes</code> prints out.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">toString: </span><span class="p">(</span><span class="nx">idt</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">idt: </span><span class="o">or</span> <span class="s1">''</span>
|
||||
<span class="s1">'\n'</span> <span class="o">+</span> <span class="nx">idt</span> <span class="o">+</span> <span class="err">@</span><span class="nx">type</span> <span class="o">+</span> <span class="p">(</span><span class="nx">child</span><span class="p">.</span><span class="nx">toString</span><span class="p">(</span><span class="nx">idt</span> <span class="o">+</span> <span class="nx">TAB</span><span class="p">)</span> <span class="k">for</span> <span class="nx">child</span> <span class="k">in</span> <span class="err">@</span><span class="nx">children</span><span class="p">).</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><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>Default implementations of the common node identification methods. Nodes
|
||||
<span class="s1">'\n'</span> <span class="o">+</span> <span class="nx">idt</span> <span class="o">+</span> <span class="err">@</span><span class="nx">constructor</span><span class="p">.</span><span class="nx">name</span> <span class="o">+</span> <span class="p">(</span><span class="nx">child</span><span class="p">.</span><span class="nx">toString</span><span class="p">(</span><span class="nx">idt</span> <span class="o">+</span> <span class="nx">TAB</span><span class="p">)</span> <span class="k">for</span> <span class="nx">child</span> <span class="k">in</span> <span class="err">@</span><span class="nx">children</span><span class="p">).</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><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>Default implementations of the common node identification methods. Nodes
|
||||
will override these with custom logic, if needed.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">unwrap: </span> <span class="o">-></span> <span class="k">this</span>
|
||||
<span class="nv">children: </span> <span class="p">[]</span>
|
||||
<span class="nv">is_statement: </span> <span class="o">-></span> <span class="kc">false</span>
|
||||
|
|
@ -80,7 +80,6 @@ will override these with custom logic, if needed.</p> </td>
|
|||
<span class="nv">top_sensitive: </span> <span class="o">-></span> <span class="kc">false</span></pre></div> </td> </tr> <tr id="section-17"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-17">#</a> </div> <h3>Expressions</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-18"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-18">#</a> </div> <p>The expressions body is the list of expressions that forms the body of an
|
||||
indented block of code -- the implementation of a function, a clause in an
|
||||
<code>if</code>, <code>switch</code>, or <code>try</code>, and so on...</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.Expressions: </span><span class="nx">class</span> <span class="nx">Expressions</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Expressions'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">nodes</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="err">@</span><span class="nv">expressions: </span><span class="nx">compact</span> <span class="nx">flatten</span> <span class="nx">nodes</span> <span class="o">or</span> <span class="p">[]</span></pre></div> </td> </tr> <tr id="section-19"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-19">#</a> </div> <p>Tack an expression on to the end of this expression list.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">push: </span><span class="p">(</span><span class="nx">node</span><span class="p">)</span> <span class="o">-></span>
|
||||
|
|
@ -127,7 +126,6 @@ to be one.</p> </td> <td class="code"> <di
|
|||
<span class="nx">statement</span> <span class="nx">Expressions</span></pre></div> </td> </tr> <tr id="section-30"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-30">#</a> </div> <h3>LiteralNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-31"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-31">#</a> </div> <p>Literals are static values that can be passed through directly into
|
||||
JavaScript without translation, such as: strings, numbers,
|
||||
<code>true</code>, <code>false</code>, <code>null</code>...</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.LiteralNode: </span><span class="nx">class</span> <span class="nx">LiteralNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Literal'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">value</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">value: </span><span class="nx">value</span></pre></div> </td> </tr> <tr id="section-32"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-32">#</a> </div> <p>Break and continue must be treated as pure statements -- they lose their
|
||||
|
|
@ -143,7 +141,6 @@ meaning when wrapped in a closure.</p> </td> <td class="
|
|||
<span class="nv">toString: </span><span class="p">(</span><span class="nx">idt</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="s2">" \"$@value\""</span></pre></div> </td> </tr> <tr id="section-33"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-33">#</a> </div> <h3>ReturnNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-34"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-34">#</a> </div> <p>A <code>return</code> is a <em>pure_statement</em> -- wrapping it in a closure wouldn't
|
||||
make sense.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ReturnNode: </span><span class="nx">class</span> <span class="nx">ReturnNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Return'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">expression</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="p">[</span><span class="err">@</span><span class="nv">expression: </span><span class="nx">expression</span><span class="p">]</span>
|
||||
|
|
@ -160,7 +157,6 @@ make sense.</p> </td> <td class="code"> <d
|
|||
|
||||
<span class="nx">statement</span> <span class="nx">ReturnNode</span><span class="p">,</span> <span class="kc">true</span></pre></div> </td> </tr> <tr id="section-35"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-35">#</a> </div> <h3>ValueNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-36"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-36">#</a> </div> <p>A value, variable or literal or parenthesized, indexed or dotted into,
|
||||
or vanilla.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ValueNode: </span><span class="nx">class</span> <span class="nx">ValueNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Value'</span>
|
||||
|
||||
<span class="nv">SOAK: </span><span class="s2">" == undefined ? undefined : "</span></pre></div> </td> </tr> <tr id="section-37"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-37">#</a> </div> <p>A <strong>ValueNode</strong> has a base and a list of property accesses.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">constructor: </span><span class="p">(</span><span class="nx">base</span><span class="p">,</span> <span class="nx">properties</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span> <span class="nx">flatten</span> <span class="p">[</span><span class="err">@</span><span class="nv">base: </span><span class="nx">base</span><span class="p">,</span> <span class="err">@</span><span class="nv">properties: </span><span class="p">(</span><span class="nx">properties</span> <span class="o">or</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>Add a property access to the list.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">push: </span><span class="p">(</span><span class="nx">prop</span><span class="p">)</span> <span class="o">-></span>
|
||||
|
|
@ -211,7 +207,6 @@ evaluate a anything twice when building the soak chain.</p> </td>
|
|||
|
||||
<span class="k">if</span> <span class="nx">op</span> <span class="o">and</span> <span class="nx">soaked</span> <span class="k">then</span> <span class="s2">"($complete)"</span> <span class="k">else</span> <span class="nx">complete</span></pre></div> </td> </tr> <tr id="section-43"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-43">#</a> </div> <h3>CommentNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-44"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-44">#</a> </div> <p>CoffeeScript passes through comments as JavaScript comments at the
|
||||
same position.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.CommentNode: </span><span class="nx">class</span> <span class="nx">CommentNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Comment'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">lines</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">lines: </span><span class="nx">lines</span>
|
||||
|
|
@ -225,7 +220,6 @@ same position.</p> </td> <td class="code">
|
|||
|
||||
<span class="nx">statement</span> <span class="nx">CommentNode</span></pre></div> </td> </tr> <tr id="section-45"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-45">#</a> </div> <h3>CallNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-46"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-46">#</a> </div> <p>Node for a function invocation. Takes care of converting <code>super()</code> calls into
|
||||
calls against the prototype's function of the same name.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.CallNode: </span><span class="nx">class</span> <span class="nx">CallNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Call'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">variable</span><span class="p">,</span> <span class="nx">args</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">is_new: </span> <span class="kc">false</span>
|
||||
|
|
@ -260,7 +254,6 @@ of the current function.</p> </td> <td class="code">
|
|||
<span class="s2">"${@prefix()}${meth}.apply($obj, ${ @compile_splat_arguments(o) })"</span></pre></div> </td> </tr> <tr id="section-51"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-51">#</a> </div> <h3>CurryNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-52"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-52">#</a> </div> <p>Binds a context object and a list of arguments to a function,
|
||||
returning the bound function. After ECMAScript 5, Prototype.js, and
|
||||
Underscore's <code>bind</code> functions.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.CurryNode: </span><span class="nx">class</span> <span class="nx">CurryNode</span> <span class="k">extends</span> <span class="nx">CallNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Curry'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">meth</span><span class="p">,</span> <span class="nx">args</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span> <span class="nx">flatten</span> <span class="p">[</span><span class="err">@</span><span class="nv">meth: </span><span class="nx">meth</span><span class="p">,</span> <span class="err">@</span><span class="nv">context: </span><span class="nx">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="err">@</span><span class="nv">args: </span><span class="p">(</span><span class="nx">args</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">or</span> <span class="p">[])]</span>
|
||||
|
|
@ -277,25 +270,22 @@ Underscore's <code>bind</code> functions.</p> </td> <td
|
|||
<span class="p">(</span><span class="k">new</span> <span class="nx">CallNode</span><span class="p">(</span><span class="nx">ref</span><span class="p">,</span> <span class="p">[</span><span class="err">@</span><span class="nx">meth</span><span class="p">,</span> <span class="err">@</span><span class="nx">context</span><span class="p">,</span> <span class="nx">literal</span><span class="p">(</span><span class="err">@</span><span class="nx">arguments</span><span class="p">(</span><span class="nx">o</span><span class="p">))])).</span><span class="nx">compile</span> <span class="nx">o</span></pre></div> </td> </tr> <tr id="section-53"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-53">#</a> </div> <h3>ExtendsNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-54"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-54">#</a> </div> <p>Node to extend an object's prototype with an ancestor object.
|
||||
After <code>goog.inherits</code> from the
|
||||
<a href="http://closure-library.googlecode.com/svn/docs/closure_goog_base.js.html">Closure Library</a>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ExtendsNode: </span><span class="nx">class</span> <span class="nx">ExtendsNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Extends'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">child</span><span class="p">,</span> <span class="nx">parent</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span> <span class="p">[</span><span class="err">@</span><span class="nv">child: </span><span class="nx">child</span><span class="p">,</span> <span class="err">@</span><span class="nv">parent: </span><span class="nx">parent</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>Hooks one constructor into another's prototype chain.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">compile_node: </span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">ref: </span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">literal</span> <span class="nx">utility</span> <span class="s1">'extends'</span>
|
||||
<span class="p">(</span><span class="k">new</span> <span class="nx">CallNode</span> <span class="nx">ref</span><span class="p">,</span> <span class="p">[</span><span class="err">@</span><span class="nx">child</span><span class="p">,</span> <span class="err">@</span><span class="nx">parent</span><span class="p">]).</span><span class="nx">compile</span> <span class="nx">o</span></pre></div> </td> </tr> <tr id="section-56"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-56">#</a> </div> <h3>AccessorNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-57"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-57">#</a> </div> <p>A <code>.</code> accessor into a property of a value, or the <code>::</code> shorthand for
|
||||
an accessor into the object's prototype.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.AccessorNode: </span><span class="nx">class</span> <span class="nx">AccessorNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Accessor'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span> <span class="p">[</span><span class="err">@</span><span class="nv">name: </span><span class="nx">name</span><span class="p">]</span>
|
||||
<span class="err">@</span><span class="nv">prototype: </span><span class="nx">tag</span> <span class="o">is</span> <span class="s1">'prototype'</span>
|
||||
<span class="err">@</span><span class="nx">prototype</span><span class="o">:</span><span class="nx">tag</span> <span class="o">is</span> <span class="s1">'prototype'</span>
|
||||
<span class="err">@</span><span class="nv">soak_node: </span><span class="nx">tag</span> <span class="o">is</span> <span class="s1">'soak'</span>
|
||||
<span class="k">this</span>
|
||||
|
||||
<span class="nv">compile_node: </span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">proto_part: </span><span class="k">if</span> <span class="err">@</span><span class="nx">prototype</span> <span class="k">then</span> <span class="s1">'prototype.'</span> <span class="k">else</span> <span class="s1">''</span>
|
||||
<span class="s2">".$proto_part${@name.compile(o)}"</span></pre></div> </td> </tr> <tr id="section-58"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-58">#</a> </div> <h3>IndexNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-59"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-59">#</a> </div> <p>A <code>[ ... ]</code> indexed accessor into an array or object.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.IndexNode: </span><span class="nx">class</span> <span class="nx">IndexNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Index'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span> <span class="p">[</span><span class="err">@</span><span class="nv">index: </span><span class="nx">index</span><span class="p">]</span>
|
||||
|
|
@ -306,7 +296,6 @@ an accessor into the object's prototype.</p> </td> <td c
|
|||
<span class="s2">"[$idx]"</span></pre></div> </td> </tr> <tr id="section-60"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-60">#</a> </div> <h3>RangeNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-61"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-61">#</a> </div> <p>A range literal. Ranges can be used to extract portions (slices) of arrays,
|
||||
to specify a range for comprehensions, or as a value, to be expanded into the
|
||||
corresponding array of integers at runtime.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.RangeNode: </span><span class="nx">class</span> <span class="nx">RangeNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Range'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">from</span><span class="p">,</span> <span class="nx">to</span><span class="p">,</span> <span class="nx">exclusive</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span> <span class="p">[</span><span class="err">@</span><span class="nv">from: </span><span class="nx">from</span><span class="p">,</span> <span class="err">@</span><span class="nv">to: </span><span class="nx">to</span><span class="p">]</span>
|
||||
|
|
@ -334,7 +323,6 @@ it instead of wrapping nodes.</p> </td> <td class="code"
|
|||
<span class="p">(</span><span class="k">new</span> <span class="nx">ParentheticalNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">CallNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">CodeNode</span><span class="p">([],</span> <span class="nx">arr</span><span class="p">.</span><span class="nx">make_return</span><span class="p">())))).</span><span class="nx">compile</span><span class="p">(</span><span class="nx">o</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> <h3>SliceNode</h3> </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>An array slice literal. Unlike JavaScript's <code>Array#slice</code>, the second parameter
|
||||
specifies the index of the end of the slice, just as the first parameter
|
||||
is the index of the beginning.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.SliceNode: </span><span class="nx">class</span> <span class="nx">SliceNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Slice'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">range</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="p">[</span><span class="err">@</span><span class="nv">range: </span><span class="nx">range</span><span class="p">]</span>
|
||||
|
|
@ -345,7 +333,6 @@ is the index of the beginning.</p> </td> <td class="code
|
|||
<span class="nv">to: </span> <span class="err">@</span><span class="nx">range</span><span class="p">.</span><span class="nx">to</span><span class="p">.</span><span class="nx">compile</span><span class="p">(</span><span class="nx">o</span><span class="p">)</span>
|
||||
<span class="nv">plus_part: </span> <span class="k">if</span> <span class="err">@</span><span class="nx">range</span><span class="p">.</span><span class="nx">exclusive</span> <span class="k">then</span> <span class="s1">''</span> <span class="k">else</span> <span class="s1">' + 1'</span>
|
||||
<span class="s2">".slice($from, $to$plus_part)"</span></pre></div> </td> </tr> <tr id="section-67"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-67">#</a> </div> <h3>ObjectNode</h3> </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>An object literal, nothing fancy.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ObjectNode: </span><span class="nx">class</span> <span class="nx">ObjectNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Object'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">props</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="err">@</span><span class="nv">objects: </span><span class="err">@</span><span class="nv">properties: </span><span class="nx">props</span> <span class="o">or</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> <p>All the mucking about with commas is to make sure that CommentNodes and
|
||||
|
|
@ -353,26 +340,25 @@ AssignNodes get interleaved correctly, with no trailing commas or
|
|||
commas affixed to comments.</p>
|
||||
|
||||
<p><em>TODO: Extract this and add it to ArrayNode</em>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">compile_node: </span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">o.indent: </span><span class="err">@</span><span class="nx">idt</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">o.indent: </span><span class="err">@</span><span class="nx">idt</span> <span class="mi">1</span>
|
||||
<span class="nv">non_comments: </span><span class="nx">prop</span> <span class="k">for</span> <span class="nx">prop</span> <span class="k">in</span> <span class="err">@</span><span class="nx">properties</span> <span class="k">when</span> <span class="o">not</span> <span class="p">(</span><span class="nx">prop</span> <span class="k">instanceof</span> <span class="nx">CommentNode</span><span class="p">)</span>
|
||||
<span class="nv">last_noncom: </span> <span class="nx">non_comments</span><span class="p">[</span><span class="nx">non_comments</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
|
||||
<span class="nv">props: </span><span class="k">for</span> <span class="nx">prop</span><span class="p">,</span> <span class="nx">i</span> <span class="k">in</span> <span class="err">@</span><span class="nx">properties</span>
|
||||
<span class="nv">join: </span> <span class="s2">",\n"</span>
|
||||
<span class="nv">join: </span> <span class="s2">"\n"</span> <span class="k">if</span> <span class="p">(</span><span class="nx">prop</span> <span class="o">is</span> <span class="nx">last_noncom</span><span class="p">)</span> <span class="o">or</span> <span class="p">(</span><span class="nx">prop</span> <span class="k">instanceof</span> <span class="nx">CommentNode</span><span class="p">)</span>
|
||||
<span class="nv">join: </span> <span class="s1">''</span> <span class="k">if</span> <span class="nx">i</span> <span class="o">is</span> <span class="err">@</span><span class="nx">properties</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
|
||||
<span class="nv">indent: </span><span class="k">if</span> <span class="nx">prop</span> <span class="k">instanceof</span> <span class="nx">CommentNode</span> <span class="k">then</span> <span class="s1">''</span> <span class="k">else</span> <span class="err">@</span><span class="nx">idt</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">indent: </span><span class="k">if</span> <span class="nx">prop</span> <span class="k">instanceof</span> <span class="nx">CommentNode</span> <span class="k">then</span> <span class="s1">''</span> <span class="k">else</span> <span class="err">@</span><span class="nx">idt</span> <span class="mi">1</span>
|
||||
<span class="nx">indent</span> <span class="o">+</span> <span class="nx">prop</span><span class="p">.</span><span class="nx">compile</span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="o">+</span> <span class="nx">join</span>
|
||||
<span class="nv">props: </span><span class="nx">props</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span>
|
||||
<span class="nv">inner: </span><span class="k">if</span> <span class="nx">props</span> <span class="k">then</span> <span class="s1">'\n'</span> <span class="o">+</span> <span class="nx">props</span> <span class="o">+</span> <span class="s1">'\n'</span> <span class="o">+</span> <span class="err">@</span><span class="nx">idt</span><span class="p">()</span> <span class="k">else</span> <span class="s1">''</span>
|
||||
<span class="s2">"{$inner}"</span></pre></div> </td> </tr> <tr id="section-70"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-70">#</a> </div> <h3>ArrayNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-71"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-71">#</a> </div> <p>An array literal.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ArrayNode: </span><span class="nx">class</span> <span class="nx">ArrayNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Array'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">objects</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="err">@</span><span class="nv">objects: </span><span class="nx">objects</span> <span class="o">or</span> <span class="p">[]</span>
|
||||
<span class="err">@</span><span class="nv">compile_splat_literal: </span><span class="nx">SplatNode</span><span class="p">.</span><span class="nx">compile_mixed_array</span> <span class="o"><-</span> <span class="err">@</span><span class="p">,</span> <span class="err">@</span><span class="nx">objects</span>
|
||||
|
||||
<span class="nv">compile_node: </span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">o.indent: </span><span class="err">@</span><span class="nx">idt</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">o.indent: </span><span class="err">@</span><span class="nx">idt</span> <span class="mi">1</span>
|
||||
<span class="nv">objects: </span><span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="nx">obj</span><span class="p">,</span> <span class="nx">i</span> <span class="k">in</span> <span class="err">@</span><span class="nx">objects</span>
|
||||
<span class="nv">code: </span><span class="nx">obj</span><span class="p">.</span><span class="nx">compile</span><span class="p">(</span><span class="nx">o</span><span class="p">)</span>
|
||||
|
|
@ -386,8 +372,7 @@ commas affixed to comments.</p>
|
|||
<span class="nx">objects</span><span class="p">.</span><span class="nx">push</span> <span class="s2">"$code, "</span>
|
||||
<span class="nv">objects: </span><span class="nx">objects</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span>
|
||||
<span class="nv">ending: </span><span class="k">if</span> <span class="nx">objects</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="s1">'\n'</span><span class="p">)</span> <span class="o">>=</span> <span class="mi">0</span> <span class="k">then</span> <span class="s2">"\n$@tab]"</span> <span class="k">else</span> <span class="s1">']'</span>
|
||||
<span class="s2">"[$objects$ending"</span></pre></div> </td> </tr> <tr id="section-72"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-72">#</a> </div> <h3>ClassNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-73"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-73">#</a> </div> <p>The CoffeeScript class definition.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ClassNode: </span><span class="nx">class</span> <span class="nx">ClassNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Class'</span></pre></div> </td> </tr> <tr id="section-74"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-74">#</a> </div> <p>Initialize a <strong>ClassNode</strong> with its name, an optional superclass, and a
|
||||
<span class="s2">"[$objects$ending"</span></pre></div> </td> </tr> <tr id="section-72"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-72">#</a> </div> <h3>ClassNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-73"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-73">#</a> </div> <p>The CoffeeScript class definition.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ClassNode: </span><span class="nx">class</span> <span class="nx">ClassNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span></pre></div> </td> </tr> <tr id="section-74"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-74">#</a> </div> <p>Initialize a <strong>ClassNode</strong> with its name, an optional superclass, and a
|
||||
list of prototype property assignments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">constructor: </span><span class="p">(</span><span class="nx">variable</span><span class="p">,</span> <span class="nx">parent</span><span class="p">,</span> <span class="nx">props</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="nx">compact</span> <span class="nx">flatten</span> <span class="p">[</span><span class="err">@</span><span class="nv">variable: </span><span class="nx">variable</span><span class="p">,</span> <span class="err">@</span><span class="nv">parent: </span><span class="nx">parent</span><span class="p">,</span> <span class="err">@</span><span class="nv">properties: </span><span class="nx">props</span> <span class="o">or</span> <span class="p">[]]</span>
|
||||
<span class="err">@</span><span class="nv">returns: </span> <span class="kc">false</span>
|
||||
|
|
@ -431,8 +416,7 @@ constructor, property assignments, and inheritance getting built out below.</p>
|
|||
<span class="s2">"$construct$extension$props$returns"</span>
|
||||
|
||||
<span class="nx">statement</span> <span class="nx">ClassNode</span></pre></div> </td> </tr> <tr id="section-76"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-76">#</a> </div> <h3>AssignNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-77"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-77">#</a> </div> <p>The <strong>AssignNode</strong> is used to assign a local variable to value, or to set the
|
||||
property of an object -- including within object literals.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.AssignNode: </span><span class="nx">class</span> <span class="nx">AssignNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Assign'</span></pre></div> </td> </tr> <tr id="section-78"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-78">#</a> </div> <p>Matchers for detecting prototype assignments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">PROTO_ASSIGN: </span><span class="sr">/^(\S+)\.prototype/</span>
|
||||
property of an object -- including within object literals.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.AssignNode: </span><span class="nx">class</span> <span class="nx">AssignNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span></pre></div> </td> </tr> <tr id="section-78"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-78">#</a> </div> <p>Matchers for detecting prototype assignments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">PROTO_ASSIGN: </span><span class="sr">/^(\S+)\.prototype/</span>
|
||||
<span class="nv">LEADING_DOT: </span> <span class="sr">/^\.(prototype\.)?/</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">variable</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="nx">context</span><span class="p">)</span> <span class="o">-></span>
|
||||
|
|
@ -505,7 +489,6 @@ for details.</p> </td> <td class="code"> <
|
|||
<span class="s2">"${name}.splice.apply($name, [$from, $to].concat($val))"</span></pre></div> </td> </tr> <tr id="section-82"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-82">#</a> </div> <h3>CodeNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-83"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-83">#</a> </div> <p>A function definition. This is the only node that creates a new Scope.
|
||||
When for the purposes of walking the contents of a function body, the CodeNode
|
||||
has no <em>children</em> -- they're within the inner scope.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.CodeNode: </span><span class="nx">class</span> <span class="nx">CodeNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Code'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">params</span><span class="p">,</span> <span class="nx">body</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">params: </span> <span class="nx">params</span> <span class="o">or</span> <span class="p">[]</span>
|
||||
|
|
@ -560,7 +543,6 @@ the function -- the parameters and body of expressions.</p> </td>
|
|||
<span class="nv">children: </span><span class="p">(</span><span class="nx">child</span><span class="p">.</span><span class="nx">toString</span><span class="p">(</span><span class="nx">idt</span> <span class="o">+</span> <span class="nx">TAB</span><span class="p">)</span> <span class="k">for</span> <span class="nx">child</span> <span class="k">in</span> <span class="err">@</span><span class="nx">real_children</span><span class="p">()).</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span>
|
||||
<span class="s2">"\n$idt$children"</span></pre></div> </td> </tr> <tr id="section-87"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-87">#</a> </div> <h3>SplatNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-88"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-88">#</a> </div> <p>A splat, either as a parameter to a function, an argument to a call,
|
||||
or as part of a destructuring assignment.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.SplatNode: </span><span class="nx">class</span> <span class="nx">SplatNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Splat'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">name: </span><span class="nx">literal</span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="nx">unless</span> <span class="nx">name</span><span class="p">.</span><span class="nx">compile</span>
|
||||
|
|
@ -599,7 +581,6 @@ splats, to a proper array</p> </td> <td class="code">
|
|||
<span class="nx">args</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span></pre></div> </td> </tr> <tr id="section-92"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-92">#</a> </div> <h3>WhileNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-93"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-93">#</a> </div> <p>A while loop, the only sort of low-level loop exposed by CoffeeScript. From
|
||||
it, all other loops can be manufactured. Useful in cases where you need more
|
||||
flexibility or more speed than a comprehension can provide.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.WhileNode: </span><span class="nx">class</span> <span class="nx">WhileNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'While'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">condition</span><span class="p">,</span> <span class="nx">opts</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nx">children</span><span class="o">:</span><span class="p">[</span><span class="err">@</span><span class="nv">condition: </span><span class="nx">condition</span><span class="p">]</span>
|
||||
|
|
@ -618,7 +599,7 @@ flexibility or more speed than a comprehension can provide.</p> </td
|
|||
<em>while</em> can be used as a part of a larger expression -- while loops may
|
||||
return an array containing the computed result of each iteration.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">compile_node: </span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">top: </span> <span class="nx">del</span><span class="p">(</span><span class="nx">o</span><span class="p">,</span> <span class="s1">'top'</span><span class="p">)</span> <span class="o">and</span> <span class="o">not</span> <span class="err">@</span><span class="nx">returns</span>
|
||||
<span class="nv">o.indent: </span> <span class="err">@</span><span class="nx">idt</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">o.indent: </span> <span class="err">@</span><span class="nx">idt</span> <span class="mi">1</span>
|
||||
<span class="nv">o.top: </span> <span class="kc">true</span>
|
||||
<span class="nv">cond: </span> <span class="err">@</span><span class="nx">condition</span><span class="p">.</span><span class="nx">compile</span><span class="p">(</span><span class="nx">o</span><span class="p">)</span>
|
||||
<span class="nv">set: </span> <span class="s1">''</span>
|
||||
|
|
@ -636,15 +617,14 @@ return an array containing the computed result of each iteration.</p>
|
|||
<span class="s2">"$pre {\n${ @body.compile(o) }\n$@tab}\n$post"</span>
|
||||
|
||||
<span class="nx">statement</span> <span class="nx">WhileNode</span></pre></div> </td> </tr> <tr id="section-95"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-95">#</a> </div> <h3>OpNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-96"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-96">#</a> </div> <p>Simple Arithmetic and logical operations. Performs some conversion from
|
||||
CoffeeScript operations into their JavaScript equivalents.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.OpNode: </span><span class="nx">class</span> <span class="nx">OpNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Op'</span></pre></div> </td> </tr> <tr id="section-97"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-97">#</a> </div> <p>The map of conversions from CoffeeScript to JavaScript symbols.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">CONVERSIONS: </span><span class="p">{</span>
|
||||
CoffeeScript operations into their JavaScript equivalents.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.OpNode: </span><span class="nx">class</span> <span class="nx">OpNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span></pre></div> </td> </tr> <tr id="section-97"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-97">#</a> </div> <p>The map of conversions from CoffeeScript to JavaScript symbols.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">CONVERSIONS: </span><span class="p">{</span>
|
||||
<span class="s1">'=='</span><span class="o">:</span> <span class="s1">'==='</span>
|
||||
<span class="s1">'!='</span><span class="o">:</span> <span class="s1">'!=='</span>
|
||||
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-98"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-98">#</a> </div> <p>The list of operators for which we perform
|
||||
<a href="http://docs.python.org/reference/expressions.html#notin">Python-style comparison chaining</a>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">CHAINABLE: </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">'<='</span><span class="p">,</span> <span class="s1">'==='</span><span class="p">,</span> <span class="s1">'!=='</span><span class="p">]</span></pre></div> </td> </tr> <tr id="section-99"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-99">#</a> </div> <p>Our assignment operators that have no JavaScript equivalent.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ASSIGNMENT: </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></pre></div> </td> </tr> <tr id="section-100"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-100">#</a> </div> <p>Operators must come before their operands with a space.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">PREFIX_OPERATORS: </span><span class="p">[</span><span class="s1">'typeof'</span><span class="p">,</span> <span class="s1">'delete'</span><span class="p">]</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">operator</span><span class="p">,</span> <span class="nx">first</span><span class="p">,</span> <span class="nx">second</span><span class="p">,</span> <span class="nx">flip</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">type: </span><span class="o">+</span> <span class="s1">' '</span> <span class="o">+</span> <span class="nx">operator</span>
|
||||
<span class="err">@</span><span class="nv">constructor.name: </span><span class="o">+</span> <span class="s1">' '</span> <span class="o">+</span> <span class="nx">operator</span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="nx">compact</span> <span class="p">[</span><span class="err">@</span><span class="nv">first: </span><span class="nx">first</span><span class="p">,</span> <span class="err">@</span><span class="nv">second: </span><span class="nx">second</span><span class="p">]</span>
|
||||
<span class="err">@</span><span class="nv">operator: </span><span class="err">@</span><span class="nx">CONVERSIONS</span><span class="p">[</span><span class="nx">operator</span><span class="p">]</span> <span class="o">or</span> <span class="nx">operator</span>
|
||||
<span class="err">@</span><span class="nv">flip: </span><span class="o">!!</span><span class="nx">flip</span>
|
||||
|
|
@ -685,7 +665,6 @@ to give us the safe references for the variables.</p> </td>
|
|||
<span class="nv">parts: </span><span class="p">[</span><span class="err">@</span><span class="nx">operator</span><span class="p">,</span> <span class="nx">space</span><span class="p">,</span> <span class="err">@</span><span class="nx">first</span><span class="p">.</span><span class="nx">compile</span><span class="p">(</span><span class="nx">o</span><span class="p">)]</span>
|
||||
<span class="nv">parts: </span><span class="nx">parts</span><span class="p">.</span><span class="nx">reverse</span><span class="p">()</span> <span class="k">if</span> <span class="err">@</span><span class="nx">flip</span>
|
||||
<span class="nx">parts</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span></pre></div> </td> </tr> <tr id="section-105"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-105">#</a> </div> <h3>TryNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-106"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-106">#</a> </div> <p>A classic <em>try/catch/finally</em> block.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.TryNode: </span><span class="nx">class</span> <span class="nx">TryNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Try'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">attempt</span><span class="p">,</span> <span class="nx">error</span><span class="p">,</span> <span class="nx">recovery</span><span class="p">,</span> <span class="nx">ensure</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="nx">compact</span> <span class="p">[</span><span class="err">@</span><span class="nv">attempt: </span><span class="nx">attempt</span><span class="p">,</span> <span class="err">@</span><span class="nv">recovery: </span><span class="nx">recovery</span><span class="p">,</span> <span class="err">@</span><span class="nv">ensure: </span><span class="nx">ensure</span><span class="p">]</span>
|
||||
|
|
@ -697,7 +676,7 @@ to give us the safe references for the variables.</p> </td>
|
|||
<span class="err">@</span><span class="nv">recovery: </span><span class="err">@</span><span class="nx">recovery</span><span class="p">.</span><span class="nx">make_return</span><span class="p">()</span> <span class="k">if</span> <span class="err">@</span><span class="nx">recovery</span>
|
||||
<span class="k">this</span></pre></div> </td> </tr> <tr id="section-107"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-107">#</a> </div> <p>Compilation is more or less as you would expect -- the <em>finally</em> clause
|
||||
is optional, the <em>catch</em> is not.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">compile_node: </span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">o.indent: </span> <span class="err">@</span><span class="nx">idt</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">o.indent: </span> <span class="err">@</span><span class="nx">idt</span> <span class="mi">1</span>
|
||||
<span class="nv">o.top: </span> <span class="kc">true</span>
|
||||
<span class="nv">attempt_part: </span><span class="err">@</span><span class="nx">attempt</span><span class="p">.</span><span class="nx">compile</span><span class="p">(</span><span class="nx">o</span><span class="p">)</span>
|
||||
<span class="nv">error_part: </span> <span class="k">if</span> <span class="err">@</span><span class="nx">error</span> <span class="k">then</span> <span class="s2">" (${ @error.compile(o) }) "</span> <span class="k">else</span> <span class="s1">' '</span>
|
||||
|
|
@ -706,7 +685,6 @@ is optional, the <em>catch</em> is not.</p> </td> <td cl
|
|||
<span class="s2">"${@tab}try {\n$attempt_part\n$@tab}$catch_part$finally_part"</span>
|
||||
|
||||
<span class="nx">statement</span> <span class="nx">TryNode</span></pre></div> </td> </tr> <tr id="section-108"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-108">#</a> </div> <h3>ThrowNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-109"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-109">#</a> </div> <p>Simple node to throw an exception.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ThrowNode: </span><span class="nx">class</span> <span class="nx">ThrowNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Throw'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">expression</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="p">[</span><span class="err">@</span><span class="nv">expression: </span><span class="nx">expression</span><span class="p">]</span></pre></div> </td> </tr> <tr id="section-110"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-110">#</a> </div> <p>A <strong>ThrowNode</strong> is already a return, of sorts...</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">make_return: </span><span class="o">-></span>
|
||||
|
|
@ -718,7 +696,6 @@ is optional, the <em>catch</em> is not.</p> </td> <td cl
|
|||
<span class="nx">statement</span> <span class="nx">ThrowNode</span></pre></div> </td> </tr> <tr id="section-111"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-111">#</a> </div> <h3>ExistenceNode</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-112"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-112">#</a> </div> <p>Checks a variable for existence -- not <em>null</em> and not <em>undefined</em>. This is
|
||||
similar to <code>.nil?</code> in Ruby, and avoids having to consult a JavaScript truth
|
||||
table.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ExistenceNode: </span><span class="nx">class</span> <span class="nx">ExistenceNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Existence'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">expression</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="p">[</span><span class="err">@</span><span class="nv">expression: </span><span class="nx">expression</span><span class="p">]</span>
|
||||
|
|
@ -736,7 +713,6 @@ we tried to clean up the results by detecting and removing redundant
|
|||
parentheses, but no longer -- you can put in as many as you please.</p>
|
||||
|
||||
<p>Parentheses are a good way to force any statement to become an expression.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ParentheticalNode: </span><span class="nx">class</span> <span class="nx">ParentheticalNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'Paren'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">expression</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">children: </span><span class="p">[</span><span class="err">@</span><span class="nv">expression: </span><span class="nx">expression</span><span class="p">]</span>
|
||||
|
|
@ -759,7 +735,6 @@ expression, able to return the result of each filtered iteration.</p>
|
|||
<p>Unlike Python array comprehensions, they can be multi-line, and you can pass
|
||||
the current index of the loop as a second parameter. Unlike Ruby blocks,
|
||||
you can map and filter in a single pass.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.ForNode: </span><span class="nx">class</span> <span class="nx">ForNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'For'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">body</span><span class="p">,</span> <span class="nx">source</span><span class="p">,</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">index</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">body: </span> <span class="nx">body</span>
|
||||
|
|
@ -794,7 +769,7 @@ some cannot.</p> </td> <td class="code"> <
|
|||
<span class="nv">index: </span> <span class="err">@</span><span class="nx">index</span> <span class="o">and</span> <span class="err">@</span><span class="nx">index</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">o</span>
|
||||
<span class="nx">scope</span><span class="p">.</span><span class="nx">find</span> <span class="nx">name</span> <span class="k">if</span> <span class="nx">name</span>
|
||||
<span class="nx">scope</span><span class="p">.</span><span class="nx">find</span> <span class="nx">index</span> <span class="k">if</span> <span class="nx">index</span>
|
||||
<span class="nv">body_dent: </span> <span class="err">@</span><span class="nx">idt</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">body_dent: </span> <span class="err">@</span><span class="nx">idt</span> <span class="mi">1</span>
|
||||
<span class="nv">rvar: </span> <span class="nx">scope</span><span class="p">.</span><span class="nx">free_variable</span><span class="p">()</span> <span class="nx">unless</span> <span class="nx">top_level</span>
|
||||
<span class="nv">ivar: </span> <span class="k">if</span> <span class="nx">range</span> <span class="k">then</span> <span class="nx">name</span> <span class="k">else</span> <span class="nx">index</span> <span class="o">or</span> <span class="nx">scope</span><span class="p">.</span><span class="nx">free_variable</span><span class="p">()</span>
|
||||
<span class="nv">var_part: </span> <span class="s1">''</span>
|
||||
|
|
@ -832,7 +807,6 @@ expression by pushing down requested returns to the last line of each clause.</p
|
|||
|
||||
<p>Single-expression <strong>IfNodes</strong> are compiled into ternary operators if possible,
|
||||
because ternaries are already proper expressions, and don't need conversion.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.IfNode: </span><span class="nx">class</span> <span class="nx">IfNode</span> <span class="k">extends</span> <span class="nx">BaseNode</span>
|
||||
<span class="nv">type: </span><span class="s1">'If'</span>
|
||||
|
||||
<span class="nv">constructor: </span><span class="p">(</span><span class="nx">condition</span><span class="p">,</span> <span class="nx">body</span><span class="p">,</span> <span class="nx">else_body</span><span class="p">,</span> <span class="nx">tags</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="err">@</span><span class="nv">condition: </span><span class="nx">condition</span>
|
||||
|
|
@ -890,7 +864,7 @@ force inner <em>else</em> bodies into statement form.</p> </td>
|
|||
<span class="err">@</span><span class="nx">rewrite_switch</span><span class="p">(</span><span class="nx">o</span><span class="p">)</span> <span class="k">if</span> <span class="err">@</span><span class="nx">switcher</span>
|
||||
<span class="nv">child: </span> <span class="nx">del</span> <span class="nx">o</span><span class="p">,</span> <span class="s1">'chain_child'</span>
|
||||
<span class="nv">cond_o: </span> <span class="nx">merge</span> <span class="nx">o</span>
|
||||
<span class="nv">o.indent: </span> <span class="err">@</span><span class="nx">idt</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nv">o.indent: </span> <span class="err">@</span><span class="nx">idt</span> <span class="mi">1</span>
|
||||
<span class="nv">o.top: </span> <span class="kc">true</span>
|
||||
<span class="nv">if_dent: </span> <span class="k">if</span> <span class="nx">child</span> <span class="k">then</span> <span class="s1">''</span> <span class="k">else</span> <span class="err">@</span><span class="nx">idt</span><span class="p">()</span>
|
||||
<span class="nv">com_dent: </span> <span class="k">if</span> <span class="nx">child</span> <span class="k">then</span> <span class="err">@</span><span class="nx">idt</span><span class="p">()</span> <span class="k">else</span> <span class="s1">''</span>
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ corrected before implicit parentheses can be wrapped around blocks of code.</p>
|
|||
<span class="err">@</span><span class="nx">close_open_calls_and_indexes</span><span class="p">()</span>
|
||||
<span class="err">@</span><span class="nx">add_implicit_indentation</span><span class="p">()</span>
|
||||
<span class="err">@</span><span class="nx">add_implicit_parentheses</span><span class="p">()</span>
|
||||
<span class="err">@</span><span class="nx">ensure_balance</span><span class="p">(</span><span class="nx">BALANCED_PAIRS</span><span class="p">)</span>
|
||||
<span class="err">@</span><span class="nx">ensure_balance</span> <span class="nx">BALANCED_PAIRS</span>
|
||||
<span class="err">@</span><span class="nx">rewrite_closing_parens</span><span class="p">()</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-6">#</a> </div> <p>Rewrite the token stream, looking one token ahead and behind.
|
||||
Allow the return value of the block to tell us how many tokens to move
|
||||
|
|
@ -30,7 +30,7 @@ our feet.</p> </td> <td class="code"> <div
|
|||
<span class="nv">i: </span><span class="mi">0</span>
|
||||
<span class="k">while</span> <span class="kc">true</span>
|
||||
<span class="k">break</span> <span class="nx">unless</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span>
|
||||
<span class="nv">move: </span><span class="nx">block</span><span class="p">(</span><span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="nx">i</span><span class="p">)</span>
|
||||
<span class="nv">move: </span><span class="nx">block</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="nx">i</span>
|
||||
<span class="nv">i: </span><span class="o">+</span> <span class="nx">move</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-7">#</a> </div> <p>Massage newlines and indentations so that comments don't have to be
|
||||
correctly indented, or appear on a line of their own.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">adjust_comments: </span><span class="o">-></span>
|
||||
|
|
@ -51,7 +51,7 @@ dispatch them here.</p> </td> <td class="code">
|
|||
this, remove their trailing newlines.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">remove_mid_expression_newlines: </span><span class="o">-></span>
|
||||
<span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></span>
|
||||
<span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">post</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">EXPRESSION_CLOSE</span><span class="p">,</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'TERMINATOR'</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="k">return</span> <span class="mi">0</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</a> </div> <p>The lexer has tagged the opening parenthesis of a method call, and the
|
||||
opening bracket of an indexing operation. Match them with their paired
|
||||
close.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">close_open_calls_and_indexes: </span><span class="o">-></span>
|
||||
|
|
@ -59,8 +59,8 @@ close.</p> </td> <td class="code"> <div cl
|
|||
<span class="nv">brackets: </span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></span>
|
||||
<span class="k">switch</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">when</span> <span class="s1">'CALL_START'</span> <span class="k">then</span> <span class="nx">parens</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
|
||||
<span class="k">when</span> <span class="s1">'INDEX_START'</span> <span class="k">then</span> <span class="nx">brackets</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
|
||||
<span class="k">when</span> <span class="s1">'CALL_START'</span> <span class="k">then</span> <span class="nx">parens</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
|
||||
<span class="k">when</span> <span class="s1">'INDEX_START'</span> <span class="k">then</span> <span class="nx">brackets</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
|
||||
<span class="k">when</span> <span class="s1">'('</span> <span class="k">then</span> <span class="nx">parens</span><span class="p">[</span><span class="nx">parens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">'['</span> <span class="k">then</span> <span class="nx">brackets</span><span class="p">[</span><span class="nx">brackets</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">')'</span>
|
||||
|
|
@ -88,7 +88,7 @@ deal with them.</p> </td> <td class="code">
|
|||
<span class="k">when</span> <span class="s1">'CALL_END'</span> <span class="k">then</span> <span class="nv">calls: </span><span class="o">-</span> <span class="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">'('</span> <span class="k">then</span> <span class="nv">parens: </span><span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">')'</span> <span class="k">then</span> <span class="nv">parens: </span><span class="o">-</span> <span class="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">'INDENT'</span> <span class="k">then</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
|
||||
<span class="k">when</span> <span class="s1">'INDENT'</span> <span class="k">then</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
|
||||
<span class="k">when</span> <span class="s1">'OUTDENT'</span>
|
||||
<span class="nv">last: </span><span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
|
||||
<span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="nx">last</span>
|
||||
|
|
@ -104,9 +104,9 @@ deal with them.</p> </td> <td class="code">
|
|||
<span class="nv">size: </span><span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="nx">stack_pointer</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="nx">stack_pointer</span><span class="p">]</span><span class="o">:</span> <span class="mi">0</span>
|
||||
<span class="k">return</span> <span class="nx">size</span>
|
||||
<span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_FUNC</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">IMPLICIT_CALL</span><span class="p">,</span> <span class="nx">tag</span>
|
||||
<span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_FUNC</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_CALL</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span>
|
||||
<span class="nv">calls: </span><span class="mi">0</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">'CALL_START'</span><span class="p">,</span> <span class="s1">'('</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">'CALL_START'</span><span class="p">,</span> <span class="s1">'('</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
|
||||
<span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="k">return</span> <span class="mi">2</span></pre></div> </td> </tr> <tr id="section-12"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-12">#</a> </div> <p>Because our grammar is LALR(1), it can't handle some single-line
|
||||
expressions that lack ending delimiters. The <strong>Rewriter</strong> adds the implicit
|
||||
|
|
@ -117,7 +117,7 @@ but we need to make sure it's balanced.</p> </td> <td cl
|
|||
<span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">'INDENT'</span> <span class="o">and</span>
|
||||
<span class="o">not</span> <span class="p">(</span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'ELSE'</span> <span class="o">and</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'IF'</span><span class="p">)</span>
|
||||
<span class="nv">starter: </span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">'INDENT'</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">'INDENT'</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
|
||||
<span class="nv">idx: </span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="nv">parens: </span><span class="mi">0</span>
|
||||
<span class="k">while</span> <span class="kc">true</span>
|
||||
|
|
@ -131,12 +131,12 @@ but we need to make sure it's balanced.</p> </td> <td cl
|
|||
<span class="nv">insertion: </span><span class="k">if</span> <span class="nx">pre</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s2">","</span> <span class="k">then</span> <span class="nx">idx</span> <span class="o">-</span> <span class="mi">1</span> <span class="k">else</span> <span class="nx">idx</span>
|
||||
<span class="nv">outdent: </span><span class="p">[</span><span class="s1">'OUTDENT'</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
|
||||
<span class="nv">outdent.generated: </span><span class="kc">true</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">insertion</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">outdent</span><span class="p">)</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">insertion</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">outdent</span>
|
||||
<span class="k">break</span>
|
||||
<span class="nv">parens: </span><span class="o">+</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'('</span>
|
||||
<span class="nv">parens: </span><span class="o">-</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">')'</span>
|
||||
<span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'THEN'</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="k">return</span> <span class="mi">0</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-13">#</a> </div> <p>Ensure that all listed pairs of tokens are correctly balanced throughout
|
||||
the course of the token stream.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">ensure_balance: </span><span class="p">(</span><span class="nx">pairs</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">levels: </span><span class="p">{}</span>
|
||||
|
|
|
|||
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