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Module: Msf::Module::Compatibility
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<div id="content"><h1>Module: Msf::Module::Compatibility
</h1>
<div class="box_info">
<dl>
<dt>Included in:</dt>
<dd><span class='object_link'><a href="../Module.html" title="Msf::Module (class)">Msf::Module</a></span></dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>lib/msf/core/module/compatibility.rb</dd>
</dl>
</div>
<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="#compat-instance_method" title="#compat (instance method)">#<strong>compat</strong> &#x21d2; Object </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Returns the hash that describes this module’s compatibilities.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#compatible%3F-instance_method" title="#compatible? (instance method)">#<strong>compatible?</strong>(mod) &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Returns whether or not this module is compatible with the supplied module.</p>
</div></span>
</li>
<li class="protected ">
<span class="summary_signature">
<a href="#init_compat-instance_method" title="#init_compat (instance method)">#<strong>init_compat</strong> &#x21d2; Object </a>
</span>
<span class="note title protected">protected</span>
<span class="summary_desc"><div class='inline'>
<p>This method initializes the module’s compatibility hashes by normalizing them into one single hash.</p>
</div></span>
</li>
</ul>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="compat-instance_method">
#<strong>compat</strong> &#x21d2; <tt>Object</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Returns the hash that describes this module’s compatibilities.</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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<pre class="code"><span class="info file"># File 'lib/msf/core/module/compatibility.rb', line 5</span>
<span class='kw'>def</span> <span class='id identifier rubyid_compat'>compat</span>
<span class='id identifier rubyid_module_info'>module_info</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Compat</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span> <span class='op'>||</span> <span class='lbrace'>{</span><span class='rbrace'>}</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="compatible?-instance_method">
#<strong>compatible?</strong>(mod) &#x21d2; <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Returns whether or not this module is compatible with the supplied module.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/msf/core/module/compatibility.rb', line 13</span>
<span class='kw'>def</span> <span class='id identifier rubyid_compatible?'>compatible?</span><span class='lparen'>(</span><span class='id identifier rubyid_mod'>mod</span><span class='rparen'>)</span>
<span class='id identifier rubyid_ch'>ch</span> <span class='op'>=</span> <span class='kw'>nil</span>
<span class='comment'># Invalid module? Shoot, we can&#39;t compare that.
</span> <span class='kw'>return</span> <span class='kw'>true</span> <span class='kw'>if</span> <span class='lparen'>(</span><span class='id identifier rubyid_mod'>mod</span> <span class='op'>==</span> <span class='kw'>nil</span><span class='rparen'>)</span>
<span class='comment'># Determine which hash to used based on the supplied module type
</span> <span class='kw'>if</span> <span class='lparen'>(</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_type'>type</span> <span class='op'>==</span> <span class='const'><span class='object_link'><a href="../../Msf.html" title="Msf (module)">Msf</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../../Msf.html#MODULE_ENCODER-constant" title="Msf::MODULE_ENCODER (constant)">MODULE_ENCODER</a></span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_ch'>ch</span> <span class='op'>=</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_compat'>compat</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Encoder</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span>
<span class='kw'>elsif</span> <span class='lparen'>(</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_type'>type</span> <span class='op'>==</span> <span class='const'><span class='object_link'><a href="../../Msf.html" title="Msf (module)">Msf</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../../Msf.html#MODULE_NOP-constant" title="Msf::MODULE_NOP (constant)">MODULE_NOP</a></span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_ch'>ch</span> <span class='op'>=</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_compat'>compat</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Nop</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span>
<span class='kw'>elsif</span> <span class='lparen'>(</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_type'>type</span> <span class='op'>==</span> <span class='const'><span class='object_link'><a href="../../Msf.html" title="Msf (module)">Msf</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../../Msf.html#MODULE_PAYLOAD-constant" title="Msf::MODULE_PAYLOAD (constant)">MODULE_PAYLOAD</a></span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_ch'>ch</span> <span class='op'>=</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_compat'>compat</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Payload</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span>
<span class='kw'>if</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_respond_to?'>respond_to?</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>target</span><span class='tstring_end'>&quot;</span></span><span class='rparen'>)</span> <span class='kw'>and</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_target'>target</span> <span class='kw'>and</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_target'>target</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Payload</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span> <span class='kw'>and</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_target'>target</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Payload</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Compat</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span>
<span class='id identifier rubyid_ch'>ch</span> <span class='op'>=</span> <span class='id identifier rubyid_ch'>ch</span><span class='period'>.</span><span class='id identifier rubyid_merge'>merge</span><span class='lparen'>(</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_target'>target</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Payload</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Compat</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span><span class='rparen'>)</span>
<span class='kw'>end</span>
<span class='kw'>else</span>
<span class='kw'>return</span> <span class='kw'>true</span>
<span class='kw'>end</span>
<span class='comment'># Enumerate each compatibility item in our hash to find out
</span> <span class='comment'># if we&#39;re compatible with this sucker.
</span> <span class='id identifier rubyid_ch'>ch</span><span class='period'>.</span><span class='id identifier rubyid_each_pair'>each_pair</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_k'>k</span><span class='comma'>,</span><span class='id identifier rubyid_v'>v</span><span class='op'>|</span>
<span class='comment'># Get the value of the current key from the module, such as
</span> <span class='comment'># the ConnectionType for a stager (ws2ord, for instance).
</span> <span class='id identifier rubyid_mval'>mval</span> <span class='op'>=</span> <span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_module_info'>module_info</span><span class='lbracket'>[</span><span class='id identifier rubyid_k'>k</span><span class='rbracket'>]</span>
<span class='comment'># Reject a filled compat item on one side, but not the other
</span> <span class='kw'>if</span> <span class='lparen'>(</span><span class='id identifier rubyid_v'>v</span> <span class='kw'>and</span> <span class='kw'>not</span> <span class='id identifier rubyid_mval'>mval</span><span class='rparen'>)</span>
<span class='id identifier rubyid_dlog'><span class='object_link'><a href="../../top-level-namespace.html#dlog-instance_method" title="#dlog (method)">dlog</a></span></span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>Module </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> is incompatible with </span><span class='embexpr_beg'>#{</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> for </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_k'>k</span><span class='embexpr_end'>}</span><span class='tstring_content'>: limiter was </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_v'>v</span><span class='embexpr_end'>}</span><span class='tstring_end'>&quot;</span></span><span class='rparen'>)</span>
<span class='kw'>return</span> <span class='kw'>false</span>
<span class='kw'>end</span>
<span class='comment'># Track how many of our values matched the module
</span> <span class='id identifier rubyid_mcnt'>mcnt</span> <span class='op'>=</span> <span class='int'>0</span>
<span class='comment'># Values are whitespace separated
</span> <span class='id identifier rubyid_sv'>sv</span> <span class='op'>=</span> <span class='id identifier rubyid_v'>v</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>\s+</span><span class='regexp_end'>/</span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_mv'>mv</span> <span class='op'>=</span> <span class='id identifier rubyid_mval'>mval</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>\s+</span><span class='regexp_end'>/</span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_sv'>sv</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_x'>x</span><span class='op'>|</span>
<span class='id identifier rubyid_dlog'><span class='object_link'><a href="../../top-level-namespace.html#dlog-instance_method" title="#dlog (method)">dlog</a></span></span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>Checking compat [</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> with </span><span class='embexpr_beg'>#{</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'>]: </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_x'>x</span><span class='embexpr_end'>}</span><span class='tstring_content'> to </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mv'>mv</span><span class='period'>.</span><span class='id identifier rubyid_join'>join</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>, </span><span class='tstring_end'>&quot;</span></span><span class='rparen'>)</span><span class='embexpr_end'>}</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>core</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span> <span class='const'><span class='object_link'><a href="../../Rex/Logging.html#LEV_3-constant" title="Rex::Logging::LEV_3 (constant)">LEV_3</a></span></span><span class='rparen'>)</span>
<span class='comment'># Verify that any negate values are not matched
</span> <span class='kw'>if</span> <span class='lparen'>(</span><span class='id identifier rubyid_x'>x</span><span class='lbracket'>[</span><span class='int'>0</span><span class='comma'>,</span><span class='int'>1</span><span class='rbracket'>]</span> <span class='op'>==</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>-</span><span class='tstring_end'>&#39;</span></span> <span class='kw'>and</span> <span class='id identifier rubyid_mv'>mv</span><span class='period'>.</span><span class='id identifier rubyid_include?'>include?</span><span class='lparen'>(</span><span class='id identifier rubyid_x'>x</span><span class='lbracket'>[</span><span class='int'>1</span><span class='comma'>,</span> <span class='id identifier rubyid_x'>x</span><span class='period'>.</span><span class='id identifier rubyid_length'>length</span><span class='op'>-</span><span class='int'>1</span><span class='rbracket'>]</span><span class='rparen'>)</span><span class='rparen'>)</span>
<span class='id identifier rubyid_dlog'><span class='object_link'><a href="../../top-level-namespace.html#dlog-instance_method" title="#dlog (method)">dlog</a></span></span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>Module </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> is incompatible with </span><span class='embexpr_beg'>#{</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> for </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_k'>k</span><span class='embexpr_end'>}</span><span class='tstring_content'>: limiter was </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_x'>x</span><span class='embexpr_end'>}</span><span class='tstring_content'>, value was </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mval'>mval</span><span class='embexpr_end'>}</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>core</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span> <span class='const'><span class='object_link'><a href="../../Rex/Logging.html#LEV_1-constant" title="Rex::Logging::LEV_1 (constant)">LEV_1</a></span></span><span class='rparen'>)</span>
<span class='kw'>return</span> <span class='kw'>false</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_mcnt'>mcnt</span> <span class='op'>+=</span> <span class='int'>1</span> <span class='kw'>if</span> <span class='id identifier rubyid_mv'>mv</span><span class='period'>.</span><span class='id identifier rubyid_include?'>include?</span><span class='lparen'>(</span><span class='id identifier rubyid_x'>x</span><span class='rparen'>)</span>
<span class='kw'>end</span>
<span class='comment'># No values matched, reject this module
</span> <span class='kw'>if</span> <span class='lparen'>(</span><span class='id identifier rubyid_mcnt'>mcnt</span> <span class='op'>==</span> <span class='int'>0</span><span class='rparen'>)</span>
<span class='id identifier rubyid_dlog'><span class='object_link'><a href="../../top-level-namespace.html#dlog-instance_method" title="#dlog (method)">dlog</a></span></span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>Module </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> is incompatible with </span><span class='embexpr_beg'>#{</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> for </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_k'>k</span><span class='embexpr_end'>}</span><span class='tstring_content'>: limiter was </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_v'>v</span><span class='embexpr_end'>}</span><span class='tstring_content'>, value was </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mval'>mval</span><span class='embexpr_end'>}</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>core</span><span class='tstring_end'>&#39;</span></span><span class='comma'>,</span> <span class='const'><span class='object_link'><a href="../../Rex/Logging.html#LEV_1-constant" title="Rex::Logging::LEV_1 (constant)">LEV_1</a></span></span><span class='rparen'>)</span>
<span class='kw'>return</span> <span class='kw'>false</span>
<span class='kw'>end</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_dlog'><span class='object_link'><a href="../../top-level-namespace.html#dlog-instance_method" title="#dlog (method)">dlog</a></span></span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>Module </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_mod'>mod</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_content'> is compatible with </span><span class='embexpr_beg'>#{</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_refname'>refname</span><span class='embexpr_end'>}</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>core</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='const'><span class='object_link'><a href="../../Rex/Logging.html#LEV_1-constant" title="Rex::Logging::LEV_1 (constant)">LEV_1</a></span></span><span class='rparen'>)</span>
<span class='comment'># If we get here, we&#39;re compatible.
</span> <span class='kw'>return</span> <span class='kw'>true</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="init_compat-instance_method">
#<strong>init_compat</strong> &#x21d2; <tt>Object</tt> <span class="extras">(protected)</span>
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<p>This method initializes the module’s compatibility hashes by normalizing them into one single hash. As it stands, modules can define compatibility in their supplied info hash through:</p>
<dl class="rdoc-list note-list"><dt>Compat</dt>
<dd>
<p>direct compat definitions</p>
</dd><dt>PayloadCompat</dt>
<dd>
<p>payload compatibilities</p>
</dd><dt>EncoderCompat</dt>
<dd>
<p>encoder compatibilities</p>
</dd><dt>NopCompat</dt>
<dd>
<p>nop compatibilities</p>
</dd><dt>MeterpreterCompat</dt>
<dd>
<p>meterpreter compatibilities</p>
</dd></dl>
<p>In the end, the module specific compatibilities are merged as sub-hashes of the primary Compat hash key to make checks more uniform.</p>
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<pre class="code"><span class="info file"># File 'lib/msf/core/module/compatibility.rb', line 98</span>
<span class='kw'>def</span> <span class='id identifier rubyid_init_compat'>init_compat</span>
<span class='id identifier rubyid_c'>c</span> <span class='op'>=</span> <span class='id identifier rubyid_module_info'>module_info</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Compat</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span>
<span class='kw'>if</span> <span class='lparen'>(</span><span class='id identifier rubyid_c'>c</span> <span class='op'>==</span> <span class='kw'>nil</span><span class='rparen'>)</span>
<span class='id identifier rubyid_c'>c</span> <span class='op'>=</span> <span class='id identifier rubyid_module_info'>module_info</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>Compat</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='const'>Hash</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span>
<span class='kw'>end</span>
<span class='qwords_beg'>%w{</span><span class='words_sep'> </span><span class='tstring_content'>Encoder</span><span class='words_sep'> </span><span class='tstring_content'>Meterpreter</span><span class='words_sep'> </span><span class='tstring_content'>Nop</span><span class='words_sep'> </span><span class='tstring_content'>Payload</span><span class='words_sep'> </span><span class='tstring_end'>}</span></span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_key'>key</span><span class='op'>|</span>
<span class='comment'># Initialize the module sub compatibilities
</span> <span class='id identifier rubyid_c'>c</span><span class='lbracket'>[</span><span class='id identifier rubyid_key'>key</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='const'>Hash</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span> <span class='kw'>if</span> <span class='id identifier rubyid_c'>c</span><span class='lbracket'>[</span><span class='id identifier rubyid_key'>key</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span>
<span class='comment'># Update the compat-derived module specific compatibilities from
</span> <span class='comment'># the specific ones to make a uniform view of compatibilities
</span> <span class='id identifier rubyid_c'>c</span><span class='lbracket'>[</span><span class='id identifier rubyid_key'>key</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_update'>update</span><span class='lparen'>(</span><span class='id identifier rubyid_module_info'>module_info</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_key'>key</span><span class='embexpr_end'>}</span><span class='tstring_content'>Compat</span><span class='tstring_end'>&quot;</span></span><span class='rbracket'>]</span> <span class='op'>||</span> <span class='lbrace'>{</span><span class='rbrace'>}</span><span class='rparen'>)</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
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