File: C:/Ruby27-x64/share/doc/ruby/html/Racc/SymbolTable.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class Racc::SymbolTable - RDoc Documentation</title>
<script type="text/javascript">
var rdoc_rel_prefix = "../";
var index_rel_prefix = "../";
</script>
<script src="../js/navigation.js" defer></script>
<script src="../js/search.js" defer></script>
<script src="../js/search_index.js" defer></script>
<script src="../js/searcher.js" defer></script>
<script src="../js/darkfish.js" defer></script>
<link href="../css/fonts.css" rel="stylesheet">
<link href="../css/rdoc.css" rel="stylesheet">
<body id="top" role="document" class="class">
<nav role="navigation">
<div id="project-navigation">
<div id="home-section" role="region" title="Quick navigation" class="nav-section">
<h2>
<a href="../index.html" rel="home">Home</a>
</h2>
<div id="table-of-contents-navigation">
<a href="../table_of_contents.html#pages">Pages</a>
<a href="../table_of_contents.html#classes">Classes</a>
<a href="../table_of_contents.html#methods">Methods</a>
</div>
</div>
<div id="search-section" role="search" class="project-section initially-hidden">
<form action="#" method="get" accept-charset="utf-8">
<div id="search-field-wrapper">
<input id="search-field" role="combobox" aria-label="Search"
aria-autocomplete="list" aria-controls="search-results"
type="text" name="search" placeholder="Search" spellcheck="false"
title="Type to search, Up and Down to navigate, Enter to load">
</div>
<ul id="search-results" aria-label="Search Results"
aria-busy="false" aria-expanded="false"
aria-atomic="false" class="initially-hidden"></ul>
</form>
</div>
</div>
<div id="class-metadata">
<div id="parent-class-section" class="nav-section">
<h3>Parent</h3>
<p class="link"><a href="../Object.html">Object</a>
</div>
<div id="includes-section" class="nav-section">
<h3>Included Modules</h3>
<ul class="link-list">
<li><a class="include" href="../Enumerable.html">Enumerable</a>
</ul>
</div>
<!-- Method Quickref -->
<div id="method-list-section" class="nav-section">
<h3>Methods</h3>
<ul class="link-list" role="directory">
<li ><a href="#method-c-new">::new</a>
<li ><a href="#method-i-5B-5D">#[]</a>
<li ><a href="#method-i-check_terminals">#check_terminals</a>
<li ><a href="#method-i-delete">#delete</a>
<li ><a href="#method-i-each">#each</a>
<li ><a href="#method-i-each_nonterminal">#each_nonterminal</a>
<li ><a href="#method-i-each_terminal">#each_terminal</a>
<li ><a href="#method-i-fix">#fix</a>
<li ><a href="#method-i-fix_ident">#fix_ident</a>
<li ><a href="#method-i-intern">#intern</a>
<li ><a href="#method-i-nonterminals">#nonterminals</a>
<li ><a href="#method-i-nt_max">#nt_max</a>
<li ><a href="#method-i-terminals">#terminals</a>
</ul>
</div>
</div>
</nav>
<main role="main" aria-labelledby="class-Racc::SymbolTable">
<h1 id="class-Racc::SymbolTable" class="class">
class Racc::SymbolTable
</h1>
<section class="description">
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section class="attribute-method-details" class="method-section">
<header>
<h3>Attributes</h3>
</header>
<div id="attribute-i-anchor" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">anchor</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-dummy" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">dummy</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-error" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">error</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-nt_base" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">nt_base</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-symbols" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">symbols</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-to_a" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">to_a</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
</section>
<section id="public-class-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Class Methods</h3>
</header>
<div id="method-c-new" class="method-detail ">
<div class="method-heading">
<span class="method-name">new</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="new-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 868</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>
<span class="ruby-ivar">@symbols</span> = [] <span class="ruby-comment"># :: [Racc::Sym]</span>
<span class="ruby-ivar">@cache</span> = {} <span class="ruby-comment"># :: {(String|Symbol) => Racc::Sym}</span>
<span class="ruby-ivar">@dummy</span> = <span class="ruby-identifier">intern</span>(<span class="ruby-value">:$start</span>, <span class="ruby-keyword">true</span>)
<span class="ruby-ivar">@anchor</span> = <span class="ruby-identifier">intern</span>(<span class="ruby-keyword">false</span>, <span class="ruby-keyword">true</span>) <span class="ruby-comment"># Symbol ID = 0</span>
<span class="ruby-ivar">@error</span> = <span class="ruby-identifier">intern</span>(<span class="ruby-value">:error</span>, <span class="ruby-keyword">false</span>) <span class="ruby-comment"># Symbol ID = 1</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-5B-5D" class="method-detail ">
<div class="method-heading">
<span class="method-name">[]</span><span
class="method-args">(id)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="5B-5D-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 880</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">[]</span>(<span class="ruby-identifier">id</span>)
<span class="ruby-ivar">@symbols</span>[<span class="ruby-identifier">id</span>]
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-delete" class="method-detail ">
<div class="method-heading">
<span class="method-name">delete</span><span
class="method-args">(sym)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="delete-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 896</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">delete</span>(<span class="ruby-identifier">sym</span>)
<span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">delete</span> <span class="ruby-identifier">sym</span>
<span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">delete</span> <span class="ruby-identifier">sym</span>.<span class="ruby-identifier">value</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-each" class="method-detail ">
<div class="method-heading">
<span class="method-name">each</span><span
class="method-args">(&block)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="each-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 907</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">each</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">each</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-each_nonterminal" class="method-detail ">
<div class="method-heading">
<span class="method-name">each_nonterminal</span><span
class="method-args">(&block)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="each_nonterminal-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 923</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">each_nonterminal</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-ivar">@nterms</span>.<span class="ruby-identifier">each</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-each_terminal" class="method-detail ">
<div class="method-heading">
<span class="method-name">each_terminal</span><span
class="method-args">(&block)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="each_terminal-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 915</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">each_terminal</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-ivar">@terms</span>.<span class="ruby-identifier">each</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-fix" class="method-detail ">
<div class="method-heading">
<span class="method-name">fix</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="fix-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 927</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">fix</span>
<span class="ruby-identifier">terms</span>, <span class="ruby-identifier">nterms</span> = <span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">partition</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span>.<span class="ruby-identifier">terminal?</span> }
<span class="ruby-ivar">@symbols</span> = <span class="ruby-identifier">terms</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">nterms</span>
<span class="ruby-ivar">@terms</span> = <span class="ruby-identifier">terms</span>
<span class="ruby-ivar">@nterms</span> = <span class="ruby-identifier">nterms</span>
<span class="ruby-ivar">@nt_base</span> = <span class="ruby-identifier">terms</span>.<span class="ruby-identifier">size</span>
<span class="ruby-identifier">fix_ident</span>
<span class="ruby-identifier">check_terminals</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-intern" class="method-detail ">
<div class="method-heading">
<span class="method-name">intern</span><span
class="method-args">(val, dummy = false)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="intern-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 884</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">intern</span>(<span class="ruby-identifier">val</span>, <span class="ruby-identifier">dummy</span> = <span class="ruby-keyword">false</span>)
<span class="ruby-ivar">@cache</span>[<span class="ruby-identifier">val</span>] <span class="ruby-operator">||=</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-identifier">sym</span> = <span class="ruby-constant">Sym</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">val</span>, <span class="ruby-identifier">dummy</span>)
<span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">sym</span>
<span class="ruby-identifier">sym</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-nonterminals" class="method-detail ">
<div class="method-heading">
<span class="method-name">nonterminals</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="nonterminals-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 919</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">nonterminals</span>
<span class="ruby-ivar">@symbols</span>[<span class="ruby-ivar">@nt_base</span>, <span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">-</span> <span class="ruby-ivar">@nt_base</span>]
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-nt_max" class="method-detail ">
<div class="method-heading">
<span class="method-name">nt_max</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="nt_max-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 903</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">nt_max</span>
<span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">size</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-terminals" class="method-detail ">
<div class="method-heading">
<span class="method-name">terminals</span><span
class="method-args">(&block)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="terminals-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 911</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">terminals</span>(<span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
<span class="ruby-ivar">@symbols</span>[<span class="ruby-value">0</span>, <span class="ruby-ivar">@nt_base</span>]
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="private-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Private Instance Methods</h3>
</header>
<div id="method-i-check_terminals" class="method-detail ">
<div class="method-heading">
<span class="method-name">check_terminals</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="check_terminals-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 945</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">check_terminals</span>
<span class="ruby-keyword">return</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">any?</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span>.<span class="ruby-identifier">should_terminal?</span> }
<span class="ruby-ivar">@anchor</span>.<span class="ruby-identifier">should_terminal</span>
<span class="ruby-ivar">@error</span>.<span class="ruby-identifier">should_terminal</span>
<span class="ruby-identifier">each_terminal</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">t</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">t</span>.<span class="ruby-identifier">should_terminal</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">t</span>.<span class="ruby-identifier">string_symbol?</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">s</span>.<span class="ruby-identifier">should_terminal</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">s</span>.<span class="ruby-identifier">assoc</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">terminals</span>().<span class="ruby-identifier">reject</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">t</span><span class="ruby-operator">|</span> <span class="ruby-identifier">t</span>.<span class="ruby-identifier">should_terminal?</span> }.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">t</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">CompileError</span>, <span class="ruby-node">"terminal #{t} not declared as terminal"</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">nonterminals</span>().<span class="ruby-identifier">select</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">n</span><span class="ruby-operator">|</span> <span class="ruby-identifier">n</span>.<span class="ruby-identifier">should_terminal?</span> }.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">n</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">CompileError</span>, <span class="ruby-node">"symbol #{n} declared as terminal but is not terminal"</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-fix_ident" class="method-detail ">
<div class="method-heading">
<span class="method-name">fix_ident</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="fix_ident-source">
<pre><span class="ruby-comment"># File lib/racc/grammar.rb, line 939</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">fix_ident</span>
<span class="ruby-ivar">@symbols</span>.<span class="ruby-identifier">each_with_index</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">t</span>, <span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">t</span>.<span class="ruby-identifier">ident</span> = <span class="ruby-identifier">i</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
</section>
</main>
<footer id="validator-badges" role="contentinfo">
<p><a href="https://validator.w3.org/check/referer">Validate</a>
<p>Generated by <a href="https://ruby.github.io/rdoc/">RDoc</a> 6.2.1.1.
<p>Based on <a href="http://deveiate.org/projects/Darkfish-RDoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
</footer>