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<p><em>Generic Function</em> <strong>COMPUTE-EFFECTIVE-SLOT-DEFINITION</strong></p>
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<p><strong>Syntax:</strong></p>
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<p><strong>compute-effective-slot-definition</strong> <em>class</em> <em>name</em> <em>direct-slot-definitions</em> => <em>effective-slot-definition</em></p>
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<p><strong>Arguments and values:</strong></p>
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<p><em>class</em> -- A class metaobject.</p>
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<p><em>name</em> -- A slot name.</p>
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<p><em>direct-slot-definitions</em> -- An ordered list of direct slot definition metaobjects. The most specific direct slot definition metaobject appears first in the list.</p>
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<p><em>effective-slot-definition</em> -- An effective slot definition metaobject.</p>
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<p><strong>Description:</strong></p>
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<p>This generic function determines the effective slot definition for a slot in a class. It is called by<a href="https://lisp-docs.github.io/cl-language-reference/meta-object-protocol/compute-slots">compute-slots</a> once for each slot accessible in instances of <em>class</em>.</p>
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<p>This generic function uses the supplied list of direct slot definition metaobjects to compute the inheritance of slot properties for a single slot. The returned effective slot definition represents the result of computing the inheritance. The name of the new effective slot definition is the same as the name of the direct slot definitions supplied.</p>
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<p>The class of the effective slot definition metaobject is determined by calling <a href="https://lisp-docs.github.io/cl-language-reference/meta-object-protocol/effective-slot-definition-class">effective-slot-definition-class</a>. The effective slot definition is then created by calling <a href="https://lisp-docs.github.io/cl-language-reference/meta-object-protocol/make-instance">make-instance</a> The initialization arguments passed in this call to <a href="https://lisp-docs.github.io/cl-language-reference/meta-object-protocol/make-instance">make-instance</a> are used to initialize the new effective slot definition metaobject. See <a href="https://lisp-docs.github.io/cl-language-reference/meta-object-protocol/initialization-of-slot-definition-metaobjects">``Initialization of Slot Definition Metaobjects''</a> for details.</p>
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<p><strong>Methods:</strong></p>
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<h2 class="anchor anchorWithStickyNavbar_LWe7" id="compute-effective-slot-definition-class-standard-class-name-direct-slot-definitionscompute-effective-slot-definition-class-funcallable-standard-class-name-direct-slot-definitions"><a href="https://lisp-docs.github.io/cl-language-reference/meta-object-protocol/compute-effective-slot-definition-standard-class"><strong>compute-effective-slot-definition</strong> (<em>class</em> standard-class) <em>name</em> <em>direct-slot-definitions</em></a>
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<a href="https://lisp-docs.github.io/cl-language-reference/meta-object-protocol/compute-effective-slot-definition-funcallable-standard-class"><strong>compute-effective-slot-definition</strong> (<em>class</em> funcallable-standard-class) <em>name</em> <em>direct-slot-definitions</em></a><a href="compute-effective-slot-definition.html#compute-effective-slot-definition-class-standard-class-name-direct-slot-definitionscompute-effective-slot-definition-class-funcallable-standard-class-name-direct-slot-definitions" class="hash-link" aria-label="Direct link to compute-effective-slot-definition-class-standard-class-name-direct-slot-definitionscompute-effective-slot-definition-class-funcallable-standard-class-name-direct-slot-definitions" title="Direct link to compute-effective-slot-definition-class-standard-class-name-direct-slot-definitionscompute-effective-slot-definition-class-funcallable-standard-class-name-direct-slot-definitions"></a></h2></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/lisp-docs/cl-language-reference/tree/main/docs/meta-object-protocol/dictionary/compute-effective-slot-definition.md" target="_blank" rel="noopener noreferrer" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">Last updated<!-- --> by <b>daninus14</b></span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="compute-effective-slot-definition-standard-class.html"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">compute-effective-slot-definition-standard-class</div></a><a class="pagination-nav__link pagination-nav__link--next" href="compute-slots-around-funcallable-standard-class.html"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">compute-slots-around-funcallable-standard-class</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="compute-effective-slot-definition.html#compute-effective-slot-definition-class-standard-class-name-direct-slot-definitionscompute-effective-slot-definition-class-funcallable-standard-class-name-direct-slot-definitions" class="table-of-contents__link toc-highlight"><strong>compute-effective-slot-definition</strong> (<em>class</em> standard-class) <em>name</em> <em>direct-slot-definitions</em>
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<strong>compute-effective-slot-definition</strong> (<em>class</em> funcallable-standard-class) <em>name</em> <em>direct-slot-definitions</em></a></li></ul></div></div></div></div></main></div></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Docs</div><ul class="footer__items clean-list"><li class="footer__item"><a href="../../../docs/tutorial.html" target="_blank" rel="noopener noreferrer" class="footer__link-item">Common Lisp Tutorial</a></li><li class="footer__item"><a href="../../index.html" target="_blank" rel="noopener noreferrer" class="footer__link-item">Common Lisp Technical Reference</a></li><li class="footer__item"><a href="../../../docs/help.html" target="_blank" rel="noopener noreferrer" class="footer__link-item">Help</a></li></ul></div><div class="col footer__col"><div class="footer__title">Community</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://stackoverflow.com/questions/tagged/common-lisp" target="_blank" rel="noopener noreferrer" class="footer__link-item">Stack Overflow<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://discord.gg/hhk46CE" target="_blank" rel="noopener noreferrer" class="footer__link-item">Discord<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://www.reddit.com/r/common_lisp" target="_blank" rel="noopener noreferrer" class="footer__link-item">Reddit<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://irclog.tymoon.eu/libera/commonlisp" target="_blank" rel="noopener noreferrer" class="footer__link-item">IRC<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li></ul></div><div class="col footer__col"><div class="footer__title">More</div><ul class="footer__items clean-list"><li class="footer__item"><a href="../../../blog.html" target="_blank" rel="noopener noreferrer" class="footer__link-item">Blog</a></li><li class="footer__item"><a href="https://github.com/lisp-docs/lisp-docs.github.io" target="_blank" rel="noopener noreferrer" class="footer__link-item">Tutorial and General Content GitHub<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://github.com/lisp-docs/cl-language-reference/" target="_blank" rel="noopener noreferrer" class="footer__link-item">Technical Reference GitHub<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="../../../docs/contribute.html" target="_blank" rel="noopener noreferrer" class="footer__link-item">Contribute to the Docs</a></li></ul></div><div class="col footer__col"><div class="footer__title">Common Lisp Docs</div><ul class="footer__items clean-list"><li clas
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