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| <td class="back"><a id="top"></a><a href="sA.6.html" rel="prev"><< §A.6 Types</a></td> |
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| <div class="breadcrumb"><a class="nav" href="sA.html" rel="section">§A OT/J Syntax</a></div> |
| <div class="sect depth2" id="sA.7"> |
| <h2 class="sect">§A.7 Guard predicates<a class="img" href="sA.7.html" |
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| <td class="sect">§ A.7.1</td> |
| <td class="rule"><span class="title">Guard</span><br /><strong class="blue"><em>[</em>base<em>]</em> when</strong> ( <em>Expression</em> ) |
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| <td class="sect">§ A.7.2</td> |
| <td class="rule"><span class="title">MethodDeclaration</span><br />...<br /><em>MethodHeader <strong class="blue">[Guard]</strong> MethodBody</em></td> |
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| <p>Other rules referring to <em><code>Guard</code></em>: |
| <a href="sA.html#sA.1.1" title="§A.1.1 ClassDeclaration" |
| class="sect">ClassDeclaration (§A.1.1)</a>, |
| <a href="sA.html#sA.3.3" title="§A.3.3 Callin binding" class="sect">CallinBinding (§A.3.3)</a></p> |
| <div class="constraints"> |
| <h5 class="constraints">Contextual constraints:</h5> |
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| <li>The <code>Expression</code> in a guard must have type <code>boolean</code>. |
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| <td class="back"><a href="sA.6.html" rel="prev"><< §A.6 Types</a></td> |
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| width="88" /></a><address>© Stephan Herrmann, Christine Hundt, Marco Mosconi</address> |
| OT/J version 1.3 — last modified: 2011-05-15 |
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