1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="content-type" content="application/xml+xhtml; charset=utf-8" />
<title>Logtalk predicate directive: protected/1</title>
<link rel="stylesheet" href="../../screen.css" type="text/css" media="screen"/>
<link rel="stylesheet" href="../../print.css" type="text/css" media="print"/>
</head>
<body>
<div class="top-left">Logtalk reference manual</div>
<div class="top-right">Predicate directive: protected/1</div>
<div class="bottom-left"><span class="page"/></div>
<div class="bottom-right"><span class="page"/></div>
<div class="navtop"><a href="../../index.html">contents</a> > <a href="../index.html">reference manual</a> > <a href="../index.html#directives">directives</a></div>
<h2 class="code">protected/1</h2>
<h4>Description</h4>
<pre>protected(Functor/Arity)
protected(Functor1/Arity1, Functor2/Arity2, ...)
protected([Functor1/Arity1, Functor2/Arity2, ...])
protected(Functor//Arity)
protected(Functor1//Arity1, Functor2//Arity2, ...)
protected([Functor1//Arity1, Functor2//Arity2, ...])</pre>
<p>
Declares protected predicates and protected grammar rule non-terminals. A protected predicate can only be called from the object containing the directive or from an object that inherits the directive. A protected non-terminal can only be used as an argument in a <a title="Consult reference manual" href="../methods/phrase2.html"><code>phrase/2</code></a> and <a title="Consult reference manual" href="../methods/phrase3.html"><code>phrase/3</code></a> messages sent from the object containing the directive or from an object that inherits the directive.
</p>
<h4>Template and modes</h4>
<pre>protected(+predicate_indicator_term)
protected(+non_terminal_indicator_term)</pre>
<h4>Examples</h4>
<pre>:- protected(init/1).
:- protected(print/2, convert/4).
:- protected([load/1, save/3]).</pre>
<div class="footer">
<div class="navbottom"><a href="private1.html">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="public1.html">next</a></div>
<div class="copyright">Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://www.logtalk.org">Logtalk.org</a></div>
<div class="footnote">
<span class="validators"><a href="http://validator.w3.org/check/referer">XHTML</a> + <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a></span>
<span class="date">Last updated on: November 16, 2005</span>
</div>
</div>
</body>
</html>
|
