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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
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Module: Kernel
— Documentation by YARD 0.9.20
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<span class="title">Kernel</span>
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<div id="content"><h1>Module: Kernel
</h1>
<div class="box_info">
<dl>
<dt>Defined in:</dt>
<dd>mrblib/kernel.rb<span class="defines">,<br />
src/kernel.c,<br /> mrbgems/mruby-sprintf/src/kernel.c,<br /> mrbgems/mruby-io/mrblib/kernel.rb,<br /> mrbgems/mruby-print/mrblib/print.rb,<br /> mrbgems/mruby-method/mrblib/kernel.rb,<br /> mrbgems/mruby-object-ext/mrblib/object.rb,<br /> mrbgems/mruby-rational/mrblib/rational.rb,<br /> mrbgems/mruby-enumerator/mrblib/enumerator.rb</span>
</dd>
</dl>
</div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>Kernel</p>
<p>ISO 15.3.1</p>
</div>
</div>
<div class="tags">
</div>
<h2>
Class Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#Array-class_method" title="Array (class method)">.<strong>Array</strong>(arg) ⇒ Array </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns +arg+ as an Array using to_a method.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#caller-class_method" title="caller (class method)">.<strong>caller</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#fail-class_method" title="fail (class method)">.<strong>fail</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>With no arguments, raises a <code>RuntimeError</code> With a single +String+ argument, raises a +RuntimeError+ with the string as a message.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#Float-class_method" title="Float (class method)">.<strong>Float</strong>(arg) ⇒ Float </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns <i>arg</i> converted to a float.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#Hash-class_method" title="Hash (class method)">.<strong>Hash</strong>(arg) ⇒ Hash </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a <code>Hash</code> if <i>arg</i> is a <code>Hash</code>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#Integer-class_method" title="Integer (class method)">.<strong>Integer</strong>(arg, base = 0) ⇒ Integer </a>
</span>
<span class="summary_desc"><div class='inline'><p>Converts <i>arg</i> to a <code>Fixnum</code>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#String-class_method" title="String (class method)">.<strong>String</strong>(arg) ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns <i>arg</i> as an <code>String</code>.</p>
</div></span>
</li>
</ul>
<h2>
Instance Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#!~-instance_method" title="#!~ (instance method)">#<strong>!~</strong>(y) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>11.4.4 Step c).</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#===-instance_method" title="#=== (instance method)">#<strong>===</strong>(other) ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Case Equality—For class <code>Object</code>, effectively the same as calling <code>#==</code>, but typically overridden by descendants to provide meaningful semantics in <code>case</code> statements.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#__case_eqq-instance_method" title="#__case_eqq (instance method)">#<strong>__case_eqq</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>internal.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#__method__-instance_method" title="#__method__ (instance method)">#<strong>__method__</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns the name at the definition of the current method as a Symbol.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#__printstr__-instance_method" title="#__printstr__ (instance method)">#<strong>__printstr__</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>15.3.1.3.34.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#__to_int-instance_method" title="#__to_int (instance method)">#<strong>__to_int</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>internal.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#__to_str-instance_method" title="#__to_str (instance method)">#<strong>__to_str</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>internal.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#_inspect-instance_method" title="#_inspect (instance method)">#<strong>_inspect</strong>(_recur_list) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>internal method for inspect.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#%60-instance_method" title="#` (instance method)">#<strong>`</strong>(cmd) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>15.3.1.2.1 Kernel.<code> provided by Kernel#</code> 15.3.1.3.3.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#block_given%3F-instance_method" title="#block_given? (instance method)">#<strong>block_given?</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns <code>true</code> if <code>yield</code> would execute a block in the current context.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#class-instance_method" title="#class (instance method)">#<strong>class</strong> ⇒ Class </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns the class of <i>obj</i>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#clone-instance_method" title="#clone (instance method)">#<strong>clone</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Produces a shallow copy of <i>obj</i>—the instance variables of <i>obj</i> are copied, but not the objects they reference.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#define_singleton_method-instance_method" title="#define_singleton_method (instance method)">#<strong>define_singleton_method</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>15.3.1.3.45.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#dup-instance_method" title="#dup (instance method)">#<strong>dup</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Produces a shallow copy of <i>obj</i>—the instance variables of <i>obj</i> are copied, but not the objects they reference.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#eql%3F-instance_method" title="#eql? (instance method)">#<strong>eql?</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Equality—At the <code>Object</code> level, <code>==</code> returns <code>true</code> only if <i>obj</i> and <i>other</i> are the same object.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#extend-instance_method" title="#extend (instance method)">#<strong>extend</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Adds to <em>obj</em> the instance methods from each module given as a parameter.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#format-instance_method" title="#format (instance method)">#<strong>format</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>in sprintf.c.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#freeze-instance_method" title="#freeze (instance method)">#<strong>freeze</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>15.3.1.3.13.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#frozen%3F-instance_method" title="#frozen? (instance method)">#<strong>frozen?</strong> ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#gets-instance_method" title="#gets (instance method)">#<strong>gets</strong>(*args) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#global_variables-instance_method" title="#global_variables (instance method)">#<strong>global_variables</strong> ⇒ Array </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns an array of the names of global variables.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#hash-instance_method" title="#hash (instance method)">#<strong>hash</strong> ⇒ Fixnum </a>
</span>
<span class="summary_desc"><div class='inline'><p>Generates a <code>Fixnum</code> hash value for this object.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#initialize_copy-instance_method" title="#initialize_copy (instance method)">#<strong>initialize_copy</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>15.3.1.3.16.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#inspect-instance_method" title="#inspect (instance method)">#<strong>inspect</strong> ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a string containing a human-readable representation of <i>obj</i>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#instance_of%3F-instance_method" title="#instance_of? (instance method)">#<strong>instance_of?</strong> ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns <code>true</code> if <i>obj</i> is an instance of the given class.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#instance_variable_defined%3F-instance_method" title="#instance_variable_defined? (instance method)">#<strong>instance_variable_defined?</strong>(symbol) ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns <code>true</code> if the given instance variable is defined in <i>obj</i>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#instance_variable_get-instance_method" title="#instance_variable_get (instance method)">#<strong>instance_variable_get</strong>(symbol) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns the value of the given instance variable, or nil if the instance variable is not set.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#instance_variable_set-instance_method" title="#instance_variable_set (instance method)">#<strong>instance_variable_set</strong>(symbol, obj) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Sets the instance variable names by <i>symbol</i> to <i>object</i>, thereby frustrating the efforts of the class’s author to attempt to provide proper encapsulation.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#instance_variables-instance_method" title="#instance_variables (instance method)">#<strong>instance_variables</strong> ⇒ Array </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns an array of instance variable names for the receiver.</p>
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<a href="#is_a%3F-instance_method" title="#is_a? (instance method)">#<strong>is_a?</strong> ⇒ Object </a>
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<span class="summary_desc"><div class='inline'><p>Returns <code>true</code> if <i>class</i> is the class of <i>obj</i>, or if <i>class</i> is one of the superclasses of <i>obj</i> or modules included in <i>obj</i>.</p>
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<a href="#iterator%3F-instance_method" title="#iterator? (instance method)">#<strong>iterator?</strong> ⇒ Object </a>
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<span class="summary_desc"><div class='inline'><p>Returns <code>true</code> if <code>yield</code> would execute a block in the current context.</p>
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