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<title>mk_compound_filter (OpenID::Yadis)</title>
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<pre><span class="ruby-comment cmt"># File lib/openid/yadis/filters.rb, line 163</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">mk_compound_filter</span>(<span class="ruby-identifier">parts</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">parts</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value str">'each'</span>)
<span class="ruby-identifier">raise</span> <span class="ruby-constant">TypeError</span>, <span class="ruby-node">"#{parts.inspect} is not iterable"</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-comment cmt"># Separate into a list of callables and a list of filter objects</span>
<span class="ruby-identifier">transformers</span> = []
<span class="ruby-identifier">filters</span> = []
<span class="ruby-identifier">parts</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">subfilter</span><span class="ruby-operator">|</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">subfilter</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Array</span>)
<span class="ruby-comment cmt"># If it's not an iterable</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">subfilter</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value str">'get_service_endpoints'</span>)
<span class="ruby-comment cmt"># It's a full filter</span>
<span class="ruby-identifier">filters</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">subfilter</span>
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">subfilter</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value str">'from_basic_service_endpoint'</span>)
<span class="ruby-comment cmt"># It's an endpoint object, so put its endpoint conversion</span>
<span class="ruby-comment cmt"># attribute into the list of endpoint transformers</span>
<span class="ruby-identifier">transformers</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">subfilter</span>.<span class="ruby-identifier">method</span>(<span class="ruby-value str">'from_basic_service_endpoint'</span>)
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">subfilter</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value str">'call'</span>)
<span class="ruby-comment cmt"># It's a proc, so add it to the list of endpoint</span>
<span class="ruby-comment cmt"># transformers</span>
<span class="ruby-identifier">transformers</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">subfilter</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">raise</span> <span class="ruby-ivar">@@filter_type_error</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">filters</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">mk_compound_filter</span>(<span class="ruby-identifier">subfilter</span>)
<span class="ruby-keyword kw">end</span>
}
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">transformers</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">></span> <span class="ruby-value">0</span>
<span class="ruby-identifier">filters</span> <span class="ruby-operator"><<</span> <span class="ruby-constant">TransformFilterMaker</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">transformers</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">filters</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">filters</span>[<span class="ruby-value">0</span>]
<span class="ruby-keyword kw">else</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-constant">CompoundFilter</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">filters</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span></pre>
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