| <!DOCTYPE html |
| PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "../xhtml1-strict.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> |
| <link rel="stylesheet" type="text/css" href="../css/ot.css" /> |
| <link rel="stylesheet" type="text/css" href="../css/otjld.css" /> |
| <title>OT/J Language Definition v1.3</title> |
| </head> |
| <body class="otdt"> |
| <div id="content"> |
| <table class="nav"> |
| <tr> |
| <td class="back"><a id="top"></a><a href="s4.3.e.html" rel="prev"><< §4.3.(e) Fragile callin binding</a></td> |
| <td class="top"><a href="index.html" rel="contents">↑ Table of Contents ↑</a></td> |
| <td class="next"></td> |
| </tr> |
| </table> |
| <div class="breadcrumb"><a class="nav" href="s4.html" rel="section">§4 Callin Binding</a> > <a class="nav" href="s4.3.html" rel="section">§4.3 Base calls</a></div> |
| <div class="subsect depth3" id="s4.3.f"> |
| <h4 class="subsect">§4.3.(f) <span class="title">Base super calls</span><a class="img" href="s4.3.f.html" title="PermaLink to (f) Base super calls"><img style="vertical-align:text-top;margin-left:5px;" src="../images/permalink.png" |
| alt="" /></a></h4> |
| <p>If a callin method <code>rm</code> is bound to a base method <code>B1.m</code> |
| that in turn overrides an inherited method <code>B0.m</code> |
| (<code>B0</code> is a super class of <code>B1</code>), |
| the callin method may use a special form of a base call denoted as |
| |
| </p> |
| <div class="listing plain"><pre><strong>base.super</strong>.rm();</pre></div> |
| <p>Such base super call invokes the super method of the bound base method, |
| here <code>B0.m</code>. This invocation is not affected by any further callin binding. |
| |
| </p> |
| <p>A base super call bypasses both the original method <code>B1.m</code> and |
| also other callin bindings that would be triggered by a regular base call. |
| For this reason any application of this construct is flagged by a decapsulation warning |
| (see <a href="s3.4.html" title="§3.4 Overriding access restrictions" |
| class="sect">§3.4</a>). |
| |
| </p> |
| </div> |
| <table class="nav"> |
| <tr> |
| <td class="back"><a href="s4.3.e.html" rel="prev"><< §4.3.(e) Fragile callin binding</a></td> |
| <td class="top"><a href="index.html" rel="contents">↑ Table of Contents ↑</a></td> |
| <td class="next"></td> |
| </tr> |
| </table> |
| <div class="breadcrumb"><a class="nav" href="s4.html" rel="section">§4 Callin Binding</a> > <a class="nav" href="s4.3.html" rel="section">§4.3 Base calls</a></div> |
| </div> |
| <div id="footer"> |
| <hr /><a class="w3c img" href="http://jigsaw.w3.org/css-validator/check/referer" |
| shape="rect"><img src="../images/valid-css2-blue.png" alt="Valid CSS!" height="31" width="88" /></a><a class="w3c img" href="http://validator.w3.org/check?uri=referer" shape="rect"><img src="../images/valid-xhtml10-blue.png" alt="Valid XHTML 1.0 Strict" height="31" |
| width="88" /></a><address>© Stephan Herrmann, Christine Hundt, Marco Mosconi</address> |
| OT/J version 1.3 — last modified: 2011-03-10 |
| </div> |
| </body> |
| </html> |