18498c43d2
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@576 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
85 lines
2.1 KiB
HTML
85 lines
2.1 KiB
HTML
<?xml version="1.0" encoding="iso-8859-1"?>
|
|
<?xml-stylesheet type="text/css" href="../../styles.css" ?>
|
|
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
|
|
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
|
|
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
|
|
|
|
<head>
|
|
<title>::/2</title>
|
|
<link rel="stylesheet" href="../../styles.css" type="text/css" />
|
|
</head>
|
|
|
|
<body>
|
|
|
|
<hr />
|
|
|
|
<h2><code><a class="back" title="Return to index" href="../index.html#to_object2">::/2</a></code></h2>
|
|
<hr />
|
|
|
|
<h4>Description</h4>
|
|
|
|
<blockquote>
|
|
<pre>
|
|
Object::Predicate
|
|
|
|
(Object1, Object2, ...)::Predicate
|
|
|
|
(Object1; Object2; ...)::Predicate
|
|
|
|
Object::(Predicate1, Predicate2, ...)
|
|
|
|
Object::(Predicate1; Predicate2; ...)
|
|
</pre>
|
|
<p>
|
|
Sends a message to an object. The message argument must match a public predicate of the receiver object. We can also send the same message to a set of objects or a set of messages to the same object. The "<code>,</code>" and "<code>;</code>" in the list have the usual Prolog meaning.
|
|
</p>
|
|
</blockquote>
|
|
|
|
<h4>Template and modes</h4>
|
|
|
|
<blockquote>
|
|
<pre>
|
|
+receivers::+messages
|
|
</pre>
|
|
</blockquote>
|
|
|
|
<h4>Errors</h4>
|
|
|
|
<blockquote>
|
|
<dl>
|
|
<dt>Either Object or Predicate is a variable:</dt>
|
|
<dd><code>instantiation_error</code></dd>
|
|
<dt>Predicate is declared private:</dt>
|
|
<dd><code>permission_error(access, private_predicate, Predicate)</code></dd>
|
|
<dt>Predicate is declared protected:</dt>
|
|
<dd><code>permission_error(access, protected_predicate, Predicate)</code></dd>
|
|
<dt>Predicate is not declared:</dt>
|
|
<dd><code>existence_error(predicate_declaration, Predicate)</code></dd>
|
|
<dt>Object does not exist:</dt>
|
|
<dd><code>existence_error(object, Object)</code></dd>
|
|
</dl>
|
|
</blockquote>
|
|
|
|
<h4>Examples</h4>
|
|
|
|
<blockquote>
|
|
<pre>
|
|
| ?- list::member(X, [1, 2, 3]).
|
|
</pre>
|
|
</blockquote>
|
|
|
|
<hr />
|
|
<p class="center">
|
|
<strong><a href="../methods/after3.html">Previous</a> | <a href="to_self1.html">Next</a> | <a href="../index.html">Table of Contents</a> | <a href="../../bibliography.html">Bibliography</a> | <a href="../../glossary.html">Glossary</a></strong>
|
|
</p>
|
|
<p class="center">
|
|
Last updated on: August 6, 2002
|
|
</p>
|
|
<hr />
|
|
|
|
</body>
|
|
|
|
</html>
|