File: C:/Ruby27-x64/share/doc/ruby/html/IRB/Irb.html
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<h3>Parent</h3>
<p class="link"><a href="../Object.html">Object</a>
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<h3>Extended With Modules</h3>
<ul class="link-list">
<li><a class="extend" href="ExtendCommandBundle.html">IRB::ExtendCommandBundle</a>
</ul>
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<!-- 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-assignment_expression-3F">#assignment_expression?</a>
<li ><a href="#method-i-eval_input">#eval_input</a>
<li ><a href="#method-i-handle_exception">#handle_exception</a>
<li ><a href="#method-i-inspect">#inspect</a>
<li ><a href="#method-i-run">#run</a>
<li ><a href="#method-i-signal_handle">#signal_handle</a>
<li ><a href="#method-i-signal_status">#signal_status</a>
<li ><a href="#method-i-suspend_context">#suspend_context</a>
<li ><a href="#method-i-suspend_input_method">#suspend_input_method</a>
<li ><a href="#method-i-suspend_name">#suspend_name</a>
<li ><a href="#method-i-suspend_workspace">#suspend_workspace</a>
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<h1 id="class-IRB::Irb" class="class">
class IRB::Irb
</h1>
<section class="description">
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section class="constants-list">
<header>
<h3>Constants</h3>
</header>
<dl>
<dt id="ASSIGNMENT_NODE_TYPES">ASSIGNMENT_NODE_TYPES
<dd>
<dt id="ATTR_PLAIN">ATTR_PLAIN
<dd>
<dt id="ATTR_TTY">ATTR_TTY
<dd>
</dl>
</section>
<section class="attribute-method-details" class="method-section">
<header>
<h3>Attributes</h3>
</header>
<div id="attribute-i-context" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">context</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
<p>Returns the current context of this irb session</p>
</div>
</div>
<div id="attribute-i-scanner" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">scanner</span><span
class="attribute-access-type">[RW]</span>
</div>
<div class="method-description">
<p>The lexer used by this irb session</p>
</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">(workspace = nil, input_method = nil)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Creates a new irb session</p>
<div class="method-source-code" id="new-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 455</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">workspace</span> = <span class="ruby-keyword">nil</span>, <span class="ruby-identifier">input_method</span> = <span class="ruby-keyword">nil</span>)
<span class="ruby-ivar">@context</span> = <span class="ruby-constant">Context</span>.<span class="ruby-identifier">new</span>(<span class="ruby-keyword">self</span>, <span class="ruby-identifier">workspace</span>, <span class="ruby-identifier">input_method</span>)
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">main</span>.<span class="ruby-identifier">extend</span> <span class="ruby-constant">ExtendCommandBundle</span>
<span class="ruby-ivar">@signal_status</span> = <span class="ruby-value">:IN_IRB</span>
<span class="ruby-ivar">@scanner</span> = <span class="ruby-constant">RubyLex</span>.<span class="ruby-identifier">new</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-assignment_expression-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">assignment_expression?</span><span
class="method-args">(line)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="assignment_expression-3F-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 799</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">assignment_expression?</span>(<span class="ruby-identifier">line</span>)
<span class="ruby-comment"># Try to parse the line and check if the last of possibly multiple</span>
<span class="ruby-comment"># expressions is an assignment type.</span>
<span class="ruby-comment"># If the expression is invalid, Ripper.sexp should return nil which will</span>
<span class="ruby-comment"># result in false being returned. Any valid expression should return an</span>
<span class="ruby-comment"># s-expression where the second selement of the top level array is an</span>
<span class="ruby-comment"># array of parsed expressions. The first element of each expression is the</span>
<span class="ruby-comment"># expression's type.</span>
<span class="ruby-identifier">verbose</span>, <span class="ruby-identifier">$VERBOSE</span> = <span class="ruby-identifier">$VERBOSE</span>, <span class="ruby-keyword">nil</span>
<span class="ruby-identifier">result</span> = <span class="ruby-constant">ASSIGNMENT_NODE_TYPES</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-constant">Ripper</span>.<span class="ruby-identifier">sexp</span>(<span class="ruby-identifier">line</span>)&.<span class="ruby-identifier">dig</span>(<span class="ruby-value">1</span>,<span class="ruby-value">-1</span>,<span class="ruby-value">0</span>))
<span class="ruby-identifier">$VERBOSE</span> = <span class="ruby-identifier">verbose</span>
<span class="ruby-identifier">result</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-eval_input" class="method-detail ">
<div class="method-heading">
<span class="method-name">eval_input</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Evaluates input for this session.</p>
<div class="method-source-code" id="eval_input-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 485</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">eval_input</span>
<span class="ruby-identifier">exc</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">set_prompt</span> <span class="ruby-keyword">do</span>
<span class="ruby-operator">|</span><span class="ruby-identifier">ltype</span>, <span class="ruby-identifier">indent</span>, <span class="ruby-identifier">continue</span>, <span class="ruby-identifier">line_no</span><span class="ruby-operator">|</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">ltype</span>
<span class="ruby-identifier">f</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">prompt_s</span>
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">continue</span>
<span class="ruby-identifier">f</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">prompt_c</span>
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">indent</span> <span class="ruby-operator">></span> <span class="ruby-value">0</span>
<span class="ruby-identifier">f</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">prompt_n</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">f</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">prompt_i</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">f</span> = <span class="ruby-string">""</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">f</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">prompting?</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>.<span class="ruby-identifier">prompt</span> = <span class="ruby-identifier">p</span> = <span class="ruby-identifier">prompt</span>(<span class="ruby-identifier">f</span>, <span class="ruby-identifier">ltype</span>, <span class="ruby-identifier">indent</span>, <span class="ruby-identifier">line_no</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>.<span class="ruby-identifier">prompt</span> = <span class="ruby-identifier">p</span> = <span class="ruby-string">""</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">auto_indent_mode</span> <span class="ruby-keyword">and</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value">:auto_indent</span>)
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">ltype</span>
<span class="ruby-identifier">prompt_i</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">prompt_i</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-operator">?</span> <span class="ruby-string">""</span> <span class="ruby-operator">:</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">prompt_i</span>
<span class="ruby-identifier">ind</span> = <span class="ruby-identifier">prompt</span>(<span class="ruby-identifier">prompt_i</span>, <span class="ruby-identifier">ltype</span>, <span class="ruby-identifier">indent</span>, <span class="ruby-identifier">line_no</span>)[<span class="ruby-regexp">/.*\z/</span>].<span class="ruby-identifier">size</span> <span class="ruby-operator">+</span>
<span class="ruby-identifier">indent</span> <span class="ruby-operator">*</span> <span class="ruby-value">2</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">p</span>.<span class="ruby-identifier">size</span>
<span class="ruby-identifier">ind</span> <span class="ruby-operator">+=</span> <span class="ruby-value">2</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">continue</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>.<span class="ruby-identifier">prompt</span> = <span class="ruby-identifier">p</span> <span class="ruby-operator">+</span> <span class="ruby-string">" "</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">ind</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">ind</span> <span class="ruby-operator">></span> <span class="ruby-value">0</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>.<span class="ruby-identifier">prompt</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">set_input</span>(<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>) <span class="ruby-keyword">do</span>
<span class="ruby-identifier">signal_status</span>(<span class="ruby-value">:IN_INPUT</span>) <span class="ruby-keyword">do</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">l</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>.<span class="ruby-identifier">gets</span>
<span class="ruby-identifier">print</span> <span class="ruby-identifier">l</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">verbose?</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">ignore_eof?</span> <span class="ruby-keyword">and</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>.<span class="ruby-identifier">readable_after_eof?</span>
<span class="ruby-identifier">l</span> = <span class="ruby-string">"\n"</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">verbose?</span>
<span class="ruby-identifier">printf</span> <span class="ruby-string">"Use \"exit\" to leave %s\n"</span>, <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">ap_name</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">print</span> <span class="ruby-string">"\n"</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">l</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">set_auto_indent</span>(<span class="ruby-ivar">@context</span>) <span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">auto_indent_mode</span>
<span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">each_top_level_statement</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">line</span>, <span class="ruby-identifier">line_no</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">signal_status</span>(<span class="ruby-value">:IN_EVAL</span>) <span class="ruby-keyword">do</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-identifier">line</span>.<span class="ruby-identifier">untaint</span> <span class="ruby-keyword">if</span> <span class="ruby-constant">RUBY_VERSION</span> <span class="ruby-operator"><</span> <span class="ruby-string">'2.7'</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">evaluate</span>(<span class="ruby-identifier">line</span>, <span class="ruby-identifier">line_no</span>, <span class="ruby-value">exception:</span> <span class="ruby-identifier">exc</span>)
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">echo?</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">assignment_expression?</span>(<span class="ruby-identifier">line</span>)
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">echo_on_assignment?</span>
<span class="ruby-identifier">output_value</span>(<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">omit_on_assignment?</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">output_value</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">Interrupt</span> <span class="ruby-operator">=></span> <span class="ruby-identifier">exc</span>
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">SystemExit</span>, <span class="ruby-constant">SignalException</span>
<span class="ruby-identifier">raise</span>
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">Exception</span> <span class="ruby-operator">=></span> <span class="ruby-identifier">exc</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">exc</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">next</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">handle_exception</span>(<span class="ruby-identifier">exc</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-handle_exception" class="method-detail ">
<div class="method-heading">
<span class="method-name">handle_exception</span><span
class="method-args">(exc)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="handle_exception-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 564</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">handle_exception</span>(<span class="ruby-identifier">exc</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">exc</span>.<span class="ruby-identifier">backtrace</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">exc</span>.<span class="ruby-identifier">backtrace</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">=~</span> <span class="ruby-regexp">/\/irb(2)?(\/.*|-.*|\.rb)?:/</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">exc</span>.<span class="ruby-identifier">class</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">!~</span> <span class="ruby-regexp">/^IRB/</span> <span class="ruby-operator">&&</span>
<span class="ruby-operator">!</span>(<span class="ruby-constant">SyntaxError</span> <span class="ruby-operator">===</span> <span class="ruby-identifier">exc</span>) <span class="ruby-operator">&&</span> <span class="ruby-operator">!</span>(<span class="ruby-constant">EncodingError</span> <span class="ruby-operator">===</span> <span class="ruby-identifier">exc</span>)
<span class="ruby-comment"># The backtrace of invalid encoding hash (ex. {"\xAE": 1}) raises EncodingError without lineno.</span>
<span class="ruby-identifier">irb_bug</span> = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">irb_bug</span> = <span class="ruby-keyword">false</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-constant">STDOUT</span>.<span class="ruby-identifier">tty?</span>
<span class="ruby-identifier">attr</span> = <span class="ruby-constant">ATTR_TTY</span>
<span class="ruby-identifier">print</span> <span class="ruby-node">"#{attr[1]}Traceback#{attr[]} (most recent call last):\n"</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">attr</span> = <span class="ruby-constant">ATTR_PLAIN</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">messages</span> = []
<span class="ruby-identifier">lasts</span> = []
<span class="ruby-identifier">levels</span> = <span class="ruby-value">0</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">exc</span>.<span class="ruby-identifier">backtrace</span>
<span class="ruby-identifier">count</span> = <span class="ruby-value">0</span>
<span class="ruby-identifier">exc</span>.<span class="ruby-identifier">backtrace</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">m</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">workspace</span>.<span class="ruby-identifier">filter_backtrace</span>(<span class="ruby-identifier">m</span>) <span class="ruby-keyword">or</span> <span class="ruby-keyword">next</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">irb_bug</span>
<span class="ruby-identifier">count</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">attr</span> <span class="ruby-operator">==</span> <span class="ruby-constant">ATTR_TTY</span>
<span class="ruby-identifier">m</span> = <span class="ruby-identifier">sprintf</span>(<span class="ruby-string">"%9d: from %s"</span>, <span class="ruby-identifier">count</span>, <span class="ruby-identifier">m</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">m</span> = <span class="ruby-node">"\tfrom #{m}"</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">messages</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator"><</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">back_trace_limit</span>
<span class="ruby-identifier">messages</span>.<span class="ruby-identifier">push</span>(<span class="ruby-identifier">m</span>)
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">lasts</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator"><</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">back_trace_limit</span>
<span class="ruby-identifier">lasts</span>.<span class="ruby-identifier">push</span>(<span class="ruby-identifier">m</span>).<span class="ruby-identifier">shift</span>
<span class="ruby-identifier">levels</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">attr</span> <span class="ruby-operator">==</span> <span class="ruby-constant">ATTR_TTY</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">lasts</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">puts</span> <span class="ruby-identifier">lasts</span>.<span class="ruby-identifier">reverse</span>
<span class="ruby-identifier">printf</span> <span class="ruby-string">"... %d levels...\n"</span>, <span class="ruby-identifier">levels</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">levels</span> <span class="ruby-operator">></span> <span class="ruby-value">0</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">puts</span> <span class="ruby-identifier">messages</span>.<span class="ruby-identifier">reverse</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">m</span> = <span class="ruby-identifier">exc</span>.<span class="ruby-identifier">to_s</span>.<span class="ruby-identifier">split</span>(<span class="ruby-regexp">/\n/</span>)
<span class="ruby-identifier">print</span> <span class="ruby-node">"#{attr[1]}#{exc.class} (#{attr[4]}#{m.shift}#{attr[0, 1]})#{attr[]}\n"</span>
<span class="ruby-identifier">puts</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span> <span class="ruby-node">"#{attr[1]}#{s}#{attr[]}\n"</span>}
<span class="ruby-keyword">if</span> <span class="ruby-identifier">attr</span> <span class="ruby-operator">==</span> <span class="ruby-constant">ATTR_PLAIN</span>
<span class="ruby-identifier">puts</span> <span class="ruby-identifier">messages</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">lasts</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">puts</span> <span class="ruby-identifier">lasts</span>
<span class="ruby-identifier">printf</span> <span class="ruby-string">"... %d levels...\n"</span>, <span class="ruby-identifier">levels</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">levels</span> <span class="ruby-operator">></span> <span class="ruby-value">0</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">print</span> <span class="ruby-string">"Maybe IRB bug!\n"</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">irb_bug</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-inspect" class="method-detail ">
<div class="method-heading">
<span class="method-name">inspect</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Outputs the local variables to this current session, including <a href="Irb.html#method-i-signal_status"><code>signal_status</code></a> and <a href="Irb.html#attribute-i-context"><code>context</code></a>, using IRB::Locale.</p>
<div class="method-source-code" id="inspect-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 784</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">inspect</span>
<span class="ruby-identifier">ary</span> = []
<span class="ruby-keyword">for</span> <span class="ruby-identifier">iv</span> <span class="ruby-keyword">in</span> <span class="ruby-identifier">instance_variables</span>
<span class="ruby-keyword">case</span> (<span class="ruby-identifier">iv</span> = <span class="ruby-identifier">iv</span>.<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword">when</span> <span class="ruby-string">"@signal_status"</span>
<span class="ruby-identifier">ary</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">format</span>(<span class="ruby-string">"%s=:%s"</span>, <span class="ruby-identifier">iv</span>, <span class="ruby-ivar">@signal_status</span>.<span class="ruby-identifier">id2name</span>)
<span class="ruby-keyword">when</span> <span class="ruby-string">"@context"</span>
<span class="ruby-identifier">ary</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">format</span>(<span class="ruby-string">"%s=%s"</span>, <span class="ruby-identifier">iv</span>, <span class="ruby-identifier">eval</span>(<span class="ruby-identifier">iv</span>).<span class="ruby-identifier">__to_s__</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">ary</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">format</span>(<span class="ruby-string">"%s=%s"</span>, <span class="ruby-identifier">iv</span>, <span class="ruby-identifier">eval</span>(<span class="ruby-identifier">iv</span>))
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">format</span>(<span class="ruby-string">"#<%s: %s>"</span>, <span class="ruby-keyword">self</span>.<span class="ruby-identifier">class</span>, <span class="ruby-identifier">ary</span>.<span class="ruby-identifier">join</span>(<span class="ruby-string">", "</span>))
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-run" class="method-detail ">
<div class="method-heading">
<span class="method-name">run</span><span
class="method-args">(conf = IRB.conf)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="run-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 462</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">run</span>(<span class="ruby-identifier">conf</span> = <span class="ruby-constant">IRB</span>.<span class="ruby-identifier">conf</span>)
<span class="ruby-identifier">conf</span>[<span class="ruby-value">:IRB_RC</span>].<span class="ruby-identifier">call</span>(<span class="ruby-identifier">context</span>) <span class="ruby-keyword">if</span> <span class="ruby-identifier">conf</span>[<span class="ruby-value">:IRB_RC</span>]
<span class="ruby-identifier">conf</span>[<span class="ruby-value">:MAIN_CONTEXT</span>] = <span class="ruby-identifier">context</span>
<span class="ruby-identifier">trap</span>(<span class="ruby-string">"SIGINT"</span>) <span class="ruby-keyword">do</span>
<span class="ruby-identifier">signal_handle</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-identifier">catch</span>(<span class="ruby-value">:IRB_EXIT</span>) <span class="ruby-keyword">do</span>
<span class="ruby-identifier">eval_input</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">ensure</span>
<span class="ruby-identifier">conf</span>[<span class="ruby-value">:AT_EXIT</span>].<span class="ruby-identifier">each</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">hook</span><span class="ruby-operator">|</span> <span class="ruby-identifier">hook</span>.<span class="ruby-identifier">call</span>}
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-signal_handle" class="method-detail ">
<div class="method-heading">
<span class="method-name">signal_handle</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Handler for the signal SIGINT, see <a href="../Kernel.html#method-i-trap"><code>Kernel#trap</code></a> for more information.</p>
<div class="method-source-code" id="signal_handle-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 676</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">signal_handle</span>
<span class="ruby-keyword">unless</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">ignore_sigint?</span>
<span class="ruby-identifier">print</span> <span class="ruby-string">"\nabort!\n"</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">verbose?</span>
<span class="ruby-identifier">exit</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">case</span> <span class="ruby-ivar">@signal_status</span>
<span class="ruby-keyword">when</span> <span class="ruby-value">:IN_INPUT</span>
<span class="ruby-identifier">print</span> <span class="ruby-string">"^C\n"</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">RubyLex</span><span class="ruby-operator">::</span><span class="ruby-constant">TerminateLineInput</span>
<span class="ruby-keyword">when</span> <span class="ruby-value">:IN_EVAL</span>
<span class="ruby-constant">IRB</span>.<span class="ruby-identifier">irb_abort</span>(<span class="ruby-keyword">self</span>)
<span class="ruby-keyword">when</span> <span class="ruby-value">:IN_LOAD</span>
<span class="ruby-constant">IRB</span>.<span class="ruby-identifier">irb_abort</span>(<span class="ruby-keyword">self</span>, <span class="ruby-constant">LoadAbort</span>)
<span class="ruby-keyword">when</span> <span class="ruby-value">:IN_IRB</span>
<span class="ruby-comment"># ignore</span>
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># ignore other cases as well</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-signal_status" class="method-detail ">
<div class="method-heading">
<span class="method-name">signal_status</span><span
class="method-args">(status) { || ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Evaluates the given block using the given <code>status</code>.</p>
<div class="method-source-code" id="signal_status-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 698</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">signal_status</span>(<span class="ruby-identifier">status</span>)
<span class="ruby-keyword">return</span> <span class="ruby-keyword">yield</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@signal_status</span> <span class="ruby-operator">==</span> <span class="ruby-value">:IN_LOAD</span>
<span class="ruby-identifier">signal_status_back</span> = <span class="ruby-ivar">@signal_status</span>
<span class="ruby-ivar">@signal_status</span> = <span class="ruby-identifier">status</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-keyword">yield</span>
<span class="ruby-keyword">ensure</span>
<span class="ruby-ivar">@signal_status</span> = <span class="ruby-identifier">signal_status_back</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-suspend_context" class="method-detail ">
<div class="method-heading">
<span class="method-name">suspend_context</span><span
class="method-args">(context) { |back_context| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Evaluates the given block using the given <code>context</code> as the <a href="Context.html"><code>Context</code></a>.</p>
<div class="method-source-code" id="suspend_context-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 666</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">suspend_context</span>(<span class="ruby-identifier">context</span>)
<span class="ruby-ivar">@context</span>, <span class="ruby-identifier">back_context</span> = <span class="ruby-identifier">context</span>, <span class="ruby-ivar">@context</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">back_context</span>
<span class="ruby-keyword">ensure</span>
<span class="ruby-ivar">@context</span> = <span class="ruby-identifier">back_context</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-suspend_input_method" class="method-detail ">
<div class="method-heading">
<span class="method-name">suspend_input_method</span><span
class="method-args">(input_method) { |back_io| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Evaluates the given block using the given <code>input_method</code> as the <a href="Context.html#attribute-i-io"><code>Context#io</code></a>.</p>
<p>Used by the irb commands <code>source</code> and <code>irb_load</code>, see IRB Sessions at <code>IRB</code> for more information.</p>
<div class="method-source-code" id="suspend_input_method-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 655</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">suspend_input_method</span>(<span class="ruby-identifier">input_method</span>)
<span class="ruby-identifier">back_io</span> = <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">io</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">instance_eval</span>{<span class="ruby-ivar">@io</span> = <span class="ruby-identifier">input_method</span>}
<span class="ruby-keyword">begin</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">back_io</span>
<span class="ruby-keyword">ensure</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">instance_eval</span>{<span class="ruby-ivar">@io</span> = <span class="ruby-identifier">back_io</span>}
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-suspend_name" class="method-detail ">
<div class="method-heading">
<span class="method-name">suspend_name</span><span
class="method-args">(path = nil, name = nil) { |back_path, back_name| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Evaluates the given block using the given <code>path</code> as the <a href="Context.html#attribute-i-irb_path"><code>Context#irb_path</code></a> and <code>name</code> as the <a href="Context.html#attribute-i-irb_name"><code>Context#irb_name</code></a>.</p>
<p>Used by the irb command <code>source</code>, see IRB Sessions at <code>IRB</code> for more information.</p>
<div class="method-source-code" id="suspend_name-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 625</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">suspend_name</span>(<span class="ruby-identifier">path</span> = <span class="ruby-keyword">nil</span>, <span class="ruby-identifier">name</span> = <span class="ruby-keyword">nil</span>)
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">irb_path</span>, <span class="ruby-identifier">back_path</span> = <span class="ruby-identifier">path</span>, <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">irb_path</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">path</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">irb_name</span>, <span class="ruby-identifier">back_name</span> = <span class="ruby-identifier">name</span>, <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">irb_name</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">name</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">back_path</span>, <span class="ruby-identifier">back_name</span>
<span class="ruby-keyword">ensure</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">irb_path</span> = <span class="ruby-identifier">back_path</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">path</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">irb_name</span> = <span class="ruby-identifier">back_name</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">name</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-suspend_workspace" class="method-detail ">
<div class="method-heading">
<span class="method-name">suspend_workspace</span><span
class="method-args">(workspace) { |back_workspace| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Evaluates the given block using the given <code>workspace</code> as the <a href="Context.html#attribute-i-workspace"><code>Context#workspace</code></a>.</p>
<p>Used by the irb command <code>irb_load</code>, see IRB Sessions at <code>IRB</code> for more information.</p>
<div class="method-source-code" id="suspend_workspace-source">
<pre><span class="ruby-comment"># File lib/irb.rb, line 641</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">suspend_workspace</span>(<span class="ruby-identifier">workspace</span>)
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">workspace</span>, <span class="ruby-identifier">back_workspace</span> = <span class="ruby-identifier">workspace</span>, <span class="ruby-ivar">@context</span>.<span class="ruby-identifier">workspace</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">back_workspace</span>
<span class="ruby-keyword">ensure</span>
<span class="ruby-ivar">@context</span>.<span class="ruby-identifier">workspace</span> = <span class="ruby-identifier">back_workspace</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
</section>
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