129 lines
7.6 KiB
HTML
129 lines
7.6 KiB
HTML
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<!DOCTYPE html>
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<html>
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<!-- Created by GNU Texinfo 7.1, https://www.gnu.org/software/texinfo/ -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<!-- This manual documents Guile version 3.0.10.
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Copyright (C) 1996-1997, 2000-2005, 2009-2023 Free Software Foundation,
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Inc.
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Copyright (C) 2021 Maxime Devos
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Copyright (C) 2024 Tomas Volf
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with no
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Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
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copy of the license is included in the section entitled "GNU Free
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Documentation License." -->
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<title>Classes (Guile Reference Manual)</title>
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<meta name="description" content="Classes (Guile Reference Manual)">
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<meta name="keywords" content="Classes (Guile Reference Manual)">
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<link href="index.html" rel="start" title="Top">
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Introspection.html" rel="up" title="Introspection">
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<link href="Instances.html" rel="next" title="Instances">
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<style type="text/css">
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a.copiable-link {visibility: hidden; text-decoration: none; line-height: 0em}
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</style>
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<link rel="stylesheet" type="text/css" href="https://www.gnu.org/software/gnulib/manual.css">
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</head>
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<body lang="en">
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<div class="subsection-level-extent" id="Classes">
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<div class="nav-panel">
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<p>
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Next: <a href="Instances.html" accesskey="n" rel="next">Instances</a>, Up: <a href="Introspection.html" accesskey="u" rel="up">Introspection</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<h4 class="subsection" id="Classes-1"><span>8.8.1 Classes<a class="copiable-link" href="#Classes-1"> ¶</a></span></h4>
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<p>A GOOPS class is itself an instance of the <code class="code"><class></code> class, or of a
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subclass of <code class="code"><class></code>. The definition of the <code class="code"><class></code> class
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has slots that are used to describe the properties of a class, including
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the following.
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</p>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002dname"><span class="category-def">primitive procedure: </span><span><strong class="def-name">class-name</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002dname"> ¶</a></span></dt>
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<dd><p>Return the name of class <var class="var">class</var>. This is the value of
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<var class="var">class</var>’s <code class="code">name</code> slot.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002ddirect_002dsupers"><span class="category-def">primitive procedure: </span><span><strong class="def-name">class-direct-supers</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002ddirect_002dsupers"> ¶</a></span></dt>
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<dd><p>Return a list containing the direct superclasses of <var class="var">class</var>. This
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is the value of <var class="var">class</var>’s <code class="code">direct-supers</code> slot.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002ddirect_002dslots"><span class="category-def">primitive procedure: </span><span><strong class="def-name">class-direct-slots</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002ddirect_002dslots"> ¶</a></span></dt>
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<dd><p>Return a list containing the slot definitions of the direct slots of
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<var class="var">class</var>. This is the value of <var class="var">class</var>’s <code class="code">direct-slots</code>
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slot.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002ddirect_002dsubclasses"><span class="category-def">primitive procedure: </span><span><strong class="def-name">class-direct-subclasses</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002ddirect_002dsubclasses"> ¶</a></span></dt>
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<dd><p>Return a list containing the direct subclasses of <var class="var">class</var>. This is
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the value of <var class="var">class</var>’s <code class="code">direct-subclasses</code> slot.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002ddirect_002dmethods"><span class="category-def">primitive procedure: </span><span><strong class="def-name">class-direct-methods</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002ddirect_002dmethods"> ¶</a></span></dt>
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<dd><p>Return a list of all the generic function methods that use <var class="var">class</var>
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as a formal parameter specializer. This is the value of <var class="var">class</var>’s
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<code class="code">direct-methods</code> slot.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002dprecedence_002dlist"><span class="category-def">primitive procedure: </span><span><strong class="def-name">class-precedence-list</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002dprecedence_002dlist"> ¶</a></span></dt>
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<dd><p>Return the class precedence list for class <var class="var">class</var> (see <a class="pxref" href="Class-Precedence-List.html">Class Precedence List</a>). This is the value of <var class="var">class</var>’s <code class="code">cpl</code> slot.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002dslots"><span class="category-def">primitive procedure: </span><span><strong class="def-name">class-slots</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002dslots"> ¶</a></span></dt>
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<dd><p>Return a list containing the slot definitions for all <var class="var">class</var>’s
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slots, including any slots that are inherited from superclasses. This
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is the value of <var class="var">class</var>’s <code class="code">slots</code> slot.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002dsubclasses"><span class="category-def">procedure: </span><span><strong class="def-name">class-subclasses</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002dsubclasses"> ¶</a></span></dt>
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<dd><p>Return a list of all subclasses of <var class="var">class</var>.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-class_002dmethods"><span class="category-def">procedure: </span><span><strong class="def-name">class-methods</strong> <var class="def-var-arguments">class</var><a class="copiable-link" href="#index-class_002dmethods"> ¶</a></span></dt>
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<dd><p>Return a list of all methods that use <var class="var">class</var> or a subclass of
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<var class="var">class</var> as one of its formal parameter specializers.
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</p></dd></dl>
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</div>
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<hr>
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<div class="nav-panel">
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<p>
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Next: <a href="Instances.html">Instances</a>, Up: <a href="Introspection.html">Introspection</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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</div>
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</body>
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</html>
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