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Copy file name to clipboardExpand all lines: clojure+/print/objects_and_protocols.html
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@@ -456,7 +456,7 @@ <h1 class="title">Printing Objects and Protocols in Clojure</h1>
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<spanid="cb14-3"><ahref="#cb14-3" aria-hidden="true" tabindex="-1"></a> (.getName))</span></code><buttontitle="Copy to Clipboard" class="code-copy-button"><iclass="bi"></i></button></pre></div>
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<divclass="sourceCode" id="cb15"><preclass="sourceCode clojure code-with-copy"><codeclass="sourceCode clojure"><spanid="cb15-1"><ahref="#cb15-1" aria-hidden="true" tabindex="-1"></a><spanclass="st">"clojure_PLUS_.print.objects_and_protocols$eval73255$_PERCENT__PERCENT___73256$_PERCENT__PERCENT__PERCENT___73257"</span></span></code><buttontitle="Copy to Clipboard" class="code-copy-button"><iclass="bi"></i></button></pre></div>
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<divclass="sourceCode" id="cb15"><preclass="sourceCode clojure code-with-copy"><codeclass="sourceCode clojure"><spanid="cb15-1"><ahref="#cb15-1" aria-hidden="true" tabindex="-1"></a><spanclass="st">"clojure_PLUS_.print.objects_and_protocols$eval73260$_PERCENT__PERCENT___73261$_PERCENT__PERCENT__PERCENT___73262"</span></span></code><buttontitle="Copy to Clipboard" class="code-copy-button"><iclass="bi"></i></button></pre></div>
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<p>Whoa, that’s pretty gross. We’d prefer to demunge the names at least.</p>
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<spanid="cb17-2"><ahref="#cb17-2" aria-hidden="true" tabindex="-1"></a> (class-name))</span></code><buttontitle="Copy to Clipboard" class="code-copy-button"><iclass="bi"></i></button></pre></div>
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<divclass="sourceCode" id="cb18"><preclass="sourceCode clojure code-with-copy"><codeclass="sourceCode clojure"><spanid="cb18-1"><ahref="#cb18-1" aria-hidden="true" tabindex="-1"></a><spanclass="st">"clojure+.print.objects-and-protocols/eval73262/%%--73263/%%%--73264"</span></span></code><buttontitle="Copy to Clipboard" class="code-copy-button"><iclass="bi"></i></button></pre></div>
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<divclass="sourceCode" id="cb18"><preclass="sourceCode clojure code-with-copy"><codeclass="sourceCode clojure"><spanid="cb18-1"><ahref="#cb18-1" aria-hidden="true" tabindex="-1"></a><spanclass="st">"clojure+.print.objects-and-protocols/eval73267/%%--73268/%%%--73269"</span></span></code><buttontitle="Copy to Clipboard" class="code-copy-button"><iclass="bi"></i></button></pre></div>
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<p>Notice the <code>/evalNNNNN/</code> part? To create a function, Clojure creates a new class. The <code>/evalNNNNN/</code> counts every time it evaluates. This is useful in the sense that it identifies the class for that evaluation. But we almost never care for that detail (more on that later). For the same reason our strangely named functions have <code>--NNNNN</code> appended to them, because they are sub evaluations of the top-level evaluation.</p>
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<p>Let’s do away with that noise for the moment:</p>
<spanid="cb13-4"><ahref="#cb13-4" aria-hidden="true" tabindex="-1"></a> [clojure.core$mapv$fn__8569 invoke <spanclass="st">"core.clj"</span><spanclass="dv">7059</span>]]</span></code><buttontitle="Copy to Clipboard" class="code-copy-button"><iclass="bi"></i></button></pre></div>
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<p>See that part <code>caesar_cipher$add2</code>? That is <strong>very</strong> useful information. It tells us that the exception was inside <code>add2</code>, which is inside <code>caesar-cipher</code>. The stack trace doesn’t print functions as objects, but it illustrates that the thing that we care about is that they are a function, what their name is, and whether they were created from inside another function.</p>
class code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_SINGLEQUOTE_\)</span>fn__73427 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_SINGLEQUOTE_\)</span>fn__73427 is in unnamed module of loader clojure.lang.DynamicClassLoader <spanclass="citation" data-cites="1b7c3638">@1b7c3638</span>; clojure.lang.IPersistentCollection is in unnamed module of loader ‘app’)
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class code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_SINGLEQUOTE_\)</span>fn__73432 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_SINGLEQUOTE_\)</span>fn__73432 is in unnamed module of loader clojure.lang.DynamicClassLoader <spanclass="citation" data-cites="139bee8f">@139bee8f</span>; clojure.lang.IPersistentCollection is in unnamed module of loader ‘app’)
java.lang.ClassCastException: class code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_SINGLEQUOTE_$fn__73427 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_SINGLEQUOTE_$fn__73427 is in unnamed module of loader clojure.lang.DynamicClassLoader @1b7c3638; clojure.lang.IPersistentCollection is in unnamed module of loader 'app')
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java.lang.ClassCastException: class code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_SINGLEQUOTE_$fn__73432 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_SINGLEQUOTE_$fn__73432 is in unnamed module of loader clojure.lang.DynamicClassLoader @139bee8f; clojure.lang.IPersistentCollection is in unnamed module of loader 'app')
class code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_LOGIC\)</span>fn__73437 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_LOGIC\)</span>fn__73437 is in unnamed module of loader clojure.lang.DynamicClassLoader <spanclass="citation" data-cites="2e734540">@2e734540</span>; clojure.lang.IPersistentCollection is in unnamed module of loader ‘app’)
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class code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_LOGIC\)</span>fn__73442 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit<spanclass="math inline">\(REV_LOGIC\)</span>fn__73442 is in unnamed module of loader clojure.lang.DynamicClassLoader <spanclass="citation" data-cites="64029bfd">@64029bfd</span>; clojure.lang.IPersistentCollection is in unnamed module of loader ‘app’)
java.lang.ClassCastException: class code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_LOGIC$fn__73437 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_LOGIC$fn__73437 is in unnamed module of loader clojure.lang.DynamicClassLoader @2e734540; clojure.lang.IPersistentCollection is in unnamed module of loader 'app')
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java.lang.ClassCastException: class code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_LOGIC$fn__73442 cannot be cast to class clojure.lang.IPersistentCollection (code_interview.beating.with_stupid_stuff.z_combinator_gambit$REV_LOGIC$fn__73442 is in unnamed module of loader clojure.lang.DynamicClassLoader @64029bfd; clojure.lang.IPersistentCollection is in unnamed module of loader 'app')
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