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<title>Module: Erubis::RubyEvaluator</title>
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<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Module</strong></td>
<td class="class-name-in-header">Erubis::RubyEvaluator</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../files/erubis/evaluator_rb.html">
erubis/evaluator.rb
</a>
<br />
</td>
</tr>
</table>
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<p>
evaluator for Ruby
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000197">def_method</a>&nbsp;&nbsp;
<a href="#M000196">evaluate</a>&nbsp;&nbsp;
<a href="#M000195">result</a>&nbsp;&nbsp;
</div>
</div>
</div>
<!-- if includes -->
<div id="includes">
<h3 class="section-bar">Included Modules</h3>
<div id="includes-list">
<span class="include-name"><a href="Evaluator.html">Evaluator</a></span>
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</div>
<div id="section">
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000197" class="method-detail">
<a name="M000197"></a>
<div class="method-heading">
<a href="#M000197" class="method-signature">
<span class="method-name">def_method</span><span class="method-args">(object, method_name, filename=nil)</span>
</a>
</div>
<div class="method-description">
<p>
if object is an Class or Module then define instance method to it, else
define singleton method to it.
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000197-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000197-source">
<pre>
<span class="ruby-comment cmt"># File erubis/evaluator.rb, line 79</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">def_method</span>(<span class="ruby-identifier">object</span>, <span class="ruby-identifier">method_name</span>, <span class="ruby-identifier">filename</span>=<span class="ruby-keyword kw">nil</span>)
<span class="ruby-identifier">m</span> = <span class="ruby-identifier">object</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Module</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">:module_eval</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">:instance_eval</span>
<span class="ruby-identifier">object</span>.<span class="ruby-identifier">__send__</span>(<span class="ruby-identifier">m</span>, <span class="ruby-node">&quot;def #{method_name}; #{@src}; end&quot;</span>, <span class="ruby-identifier">filename</span> <span class="ruby-operator">||</span> <span class="ruby-ivar">@filename</span> <span class="ruby-operator">||</span> <span class="ruby-value str">'(erubis)'</span>)
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000196" class="method-detail">
<a name="M000196"></a>
<div class="method-heading">
<a href="#M000196" class="method-signature">
<span class="method-name">evaluate</span><span class="method-args">(_context=Context.new)</span>
</a>
</div>
<div class="method-description">
<p>
invoke context.instance_eval(@src)
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000196-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000196-source">
<pre>
<span class="ruby-comment cmt"># File erubis/evaluator.rb, line 69</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">evaluate</span>(<span class="ruby-identifier">_context</span>=<span class="ruby-constant">Context</span>.<span class="ruby-identifier">new</span>)
<span class="ruby-identifier">_context</span> = <span class="ruby-constant">Context</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">_context</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">_context</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>)
<span class="ruby-comment cmt">#return _context.instance_eval(@src, @filename || '(erubis)')</span>
<span class="ruby-comment cmt">#@_proc ||= eval(&quot;proc { #{@src} }&quot;, Erubis::EMPTY_BINDING, @filename || '(erubis)')</span>
<span class="ruby-ivar">@_proc</span> <span class="ruby-operator">||=</span> <span class="ruby-identifier">eval</span>(<span class="ruby-node">&quot;proc { #{@src} }&quot;</span>, <span class="ruby-identifier">binding</span>(), <span class="ruby-ivar">@filename</span> <span class="ruby-operator">||</span> <span class="ruby-value str">'(erubis)'</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">_context</span>.<span class="ruby-identifier">instance_eval</span>(<span class="ruby-operator">&amp;</span><span class="ruby-ivar">@_proc</span>)
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000195" class="method-detail">
<a name="M000195"></a>
<div class="method-heading">
<a href="#M000195" class="method-signature">
<span class="method-name">result</span><span class="method-args">(_binding_or_hash=TOPLEVEL_BINDING)</span>
</a>
</div>
<div class="method-description">
<p>
eval(@src) with binding object
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000195-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000195-source">
<pre>
<span class="ruby-comment cmt"># File erubis/evaluator.rb, line 53</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">result</span>(<span class="ruby-identifier">_binding_or_hash</span>=<span class="ruby-constant">TOPLEVEL_BINDING</span>)
<span class="ruby-identifier">_arg</span> = <span class="ruby-identifier">_binding_or_hash</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">_arg</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>)
<span class="ruby-identifier">_b</span> = <span class="ruby-identifier">binding</span>()
<span class="ruby-identifier">eval</span> <span class="ruby-identifier">_arg</span>.<span class="ruby-identifier">collect</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">k</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-node">&quot;#{k} = _arg[#{k.inspect}]; &quot;</span>}.<span class="ruby-identifier">join</span>, <span class="ruby-identifier">_b</span>
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">_arg</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Binding</span>)
<span class="ruby-identifier">_b</span> = <span class="ruby-identifier">_arg</span>
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">_arg</span>.<span class="ruby-identifier">nil?</span>
<span class="ruby-identifier">_b</span> = <span class="ruby-identifier">binding</span>()
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>.<span class="ruby-identifier">new</span>(<span class="ruby-node">&quot;#{self.class.name}#result(): argument should be Binding or Hash but passed #{_arg.class.name} object.&quot;</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">eval</span>(<span class="ruby-ivar">@src</span>, <span class="ruby-identifier">_b</span>, (<span class="ruby-ivar">@filename</span> <span class="ruby-operator">||</span> <span class="ruby-value str">'(erubis'</span>))
<span class="ruby-keyword kw">end</span>
</pre>
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