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<h3>Included Modules</h3>
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<li><span class="include">Enumerable</span>
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<li ><a href="#method-c-new">::new</a>
<li ><a href="#method-i-each">#each</a>
<li ><a href="#method-i-head">#head</a>
<li ><a href="#method-i-head_out">#head_out</a>
<li ><a href="#method-i-insert">#insert</a>
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<h1 id="class-Alimento::Lista" class="class">
class Alimento::Lista
</h1>
<section class="description">
<p>Clase que representa a una lista doblemente enlazada Se ha incluido el
mixin Enumerable</p>
</section>
<section id="5Buntitled-5D" class="documentation-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">(head, tail)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Se asignan la cabeza (@head) y la cola (@tail) y se enlazan</p>
<div class="method-source-code" id="new-source">
<pre><span class="ruby-comment"># File lib/alimento/lista.rb, line 12</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">head</span>, <span class="ruby-identifier">tail</span>)
<span class="ruby-ivar">@head</span> = <span class="ruby-identifier">head</span>
<span class="ruby-ivar">@tail</span> = <span class="ruby-identifier">tail</span>
<span class="ruby-ivar">@head</span>.<span class="ruby-identifier">siguiente</span> = <span class="ruby-ivar">@tail</span>
<span class="ruby-ivar">@tail</span>.<span class="ruby-identifier">anterior</span> = <span class="ruby-ivar">@head</span>
<span class="ruby-keyword">end</span></pre>
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</section>
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-each" class="method-detail ">
<div class="method-heading">
<span class="method-name">each</span><span
class="method-args">() { |valor| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Se incluye el método del mixin Enumerable Se define como una iteración
sobre los valores de cada nodod de la lista</p>
<div class="method-source-code" id="each-source">
<pre><span class="ruby-comment"># File lib/alimento/lista.rb, line 59</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">each</span>
<span class="ruby-identifier">tmp</span> = <span class="ruby-ivar">@head</span>
<span class="ruby-keyword">while</span> <span class="ruby-identifier">tmp</span> <span class="ruby-operator">!=</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">do</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">tmp</span>.<span class="ruby-identifier">valor</span>
<span class="ruby-identifier">tmp</span> = <span class="ruby-identifier">tmp</span>.<span class="ruby-identifier">siguiente</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-head" class="method-detail ">
<div class="method-heading">
<span class="method-name">head</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Getter/Setter de @head</p>
<div class="method-source-code" id="head-source">
<pre><span class="ruby-comment"># File lib/alimento/lista.rb, line 21</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">head</span>
<span class="ruby-ivar">@head</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-head_out" class="method-detail ">
<div class="method-heading">
<span class="method-name">head_out</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Método que extrae/elimina el primer valor de la lista</p>
<div class="method-source-code" id="head_out-source">
<pre><span class="ruby-comment"># File lib/alimento/lista.rb, line 42</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">head_out</span>
<span class="ruby-identifier">aux</span> = <span class="ruby-ivar">@head</span>.<span class="ruby-identifier">siguiente</span>
<span class="ruby-ivar">@head</span>.<span class="ruby-identifier">siguiente</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@head</span> = <span class="ruby-identifier">aux</span>
<span class="ruby-ivar">@head</span>.<span class="ruby-identifier">anterior</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-insert" class="method-detail ">
<div class="method-heading">
<span class="method-name">insert</span><span
class="method-args">(nodo)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Método que inserta un nodo en la cabeza de la lista</p>
<div class="method-source-code" id="insert-source">
<pre><span class="ruby-comment"># File lib/alimento/lista.rb, line 31</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">insert</span>(<span class="ruby-identifier">nodo</span>)
<span class="ruby-keyword">if</span>(<span class="ruby-identifier">nodo</span>.<span class="ruby-identifier">is_a?</span><span class="ruby-constant">Nodo</span>) <span class="ruby-keyword">then</span>
<span class="ruby-identifier">aux</span> = <span class="ruby-ivar">@head</span>
<span class="ruby-ivar">@head</span> = <span class="ruby-identifier">nodo</span>
<span class="ruby-ivar">@head</span>.<span class="ruby-identifier">anterior</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@head</span>.<span class="ruby-identifier">siguiente</span> = <span class="ruby-identifier">aux</span>
<span class="ruby-identifier">aux</span>.<span class="ruby-identifier">anterior</span> = <span class="ruby-ivar">@head</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-tail" class="method-detail ">
<div class="method-heading">
<span class="method-name">tail</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Getter/Setter de @tail</p>
<div class="method-source-code" id="tail-source">
<pre><span class="ruby-comment"># File lib/alimento/lista.rb, line 26</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">tail</span>
<span class="ruby-ivar">@tail</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-tail_out" class="method-detail ">
<div class="method-heading">
<span class="method-name">tail_out</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Método que extrae/elimina el último valor de la lista</p>
<div class="method-source-code" id="tail_out-source">
<pre><span class="ruby-comment"># File lib/alimento/lista.rb, line 50</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">tail_out</span>
<span class="ruby-identifier">aux</span> = <span class="ruby-ivar">@tail</span>.<span class="ruby-identifier">anterior</span>
<span class="ruby-ivar">@tail</span>.<span class="ruby-identifier">anterior</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@tail</span> = <span class="ruby-identifier">aux</span>
<span class="ruby-ivar">@tail</span>.<span class="ruby-identifier">siguiente</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span></pre>
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