86 lines
3.5 KiB
HTML
86 lines
3.5 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>Method Definition (Guile Reference Manual)</title>
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<meta name="description" content="Method Definition (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="The-Metaobject-Protocol.html" rel="up" title="The Metaobject Protocol">
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<link href="Method-Definition-Internals.html" rel="next" title="Method Definition Internals">
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<link href="Customizing-Class-Definition.html" rel="prev" title="Customizing Class Definition">
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</head>
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<body lang="en">
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<div class="subsection-level-extent" id="Method-Definition">
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<div class="nav-panel">
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<p>
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Next: <a href="Method-Definition-Internals.html" accesskey="n" rel="next">Method Definition Internals</a>, Previous: <a href="Customizing-Class-Definition.html" accesskey="p" rel="prev">Customizing Class Definition</a>, Up: <a href="The-Metaobject-Protocol.html" accesskey="u" rel="up">The Metaobject Protocol</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="Method-Definition-1"><span>8.11.7 Method Definition<a class="copiable-link" href="#Method-Definition-1"> ¶</a></span></h4>
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<p><code class="code">define-method</code> (syntax)
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</p>
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<ul class="itemize mark-bullet">
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<li><code class="code">add-method! <var class="var">target</var> <var class="var">method</var></code> (generic)
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</li></ul>
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<p><code class="code">define-method</code> invokes the <code class="code">add-method!</code> generic function to
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handle adding the new method to a variety of possible targets. GOOPS
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includes methods to handle <var class="var">target</var> as
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</p>
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<ul class="itemize mark-bullet">
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<li>a generic function (the most common case)
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</li><li>a procedure
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</li><li>a primitive generic (see <a class="pxref" href="Extending-Primitives.html">Extending Primitives</a>)
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</li></ul>
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<p>By defining further methods for <code class="code">add-method!</code>, you can
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theoretically handle adding methods to further types of target.
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</p>
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</div>
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</body>
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</html>
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