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<html><head><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>4.3.2.&nbsp;Sequential Rule</title><link href="style.css" rel="stylesheet" type="text/css"><meta content="DocBook XSL Stylesheets V1.72.0" name="generator"><link rel="start" href="index.html" title="The VIATRA2 Model Transformation Framework"><link rel="up" href="sec_ASMCompoundRules.html" title="4.3.&nbsp;Compound ASM Rules"><link rel="prev" href="def_CompoundRule.html" title="4.3.1.&nbsp;Compound Rule"><link rel="next" href="def_ParallelRule.html" title="4.3.3.&nbsp;Parallel Rule"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table summary="Navigation header" width="100%"><tr><th align="center" colspan="3">4.3.2.&nbsp;Sequential Rule</th></tr><tr><td align="left" width="20%"><a accesskey="p" href="def_CompoundRule.html">Prev</a>&nbsp;</td><th align="center" width="60%">4.3.&nbsp;Compound ASM Rules</th><td align="right" width="20%">&nbsp;<a accesskey="n" href="def_ParallelRule.html">Next</a></td></tr></table><hr></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="def_SequentialRule"></a>4.3.2.&nbsp;Sequential Rule</h4></div></div></div><div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Tip: Description"><tr><td valign="top" align="center" rowspan="2" width="25"><img alt="[Tip]" src="images/tip.png"></td><th align="left"><a name="def_SequentialRule_Description"></a>Description</th></tr><tr><td valign="top" align="left"><p>
The <span class="strong"><strong>sequential rule</strong></span><a name="N11566" class="indexterm"></a>is a rule-container that defines the sequential
execution of multiple rules.
</p></td></tr></table></div><div class="important" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Important: Syntax"><tr><td valign="top" align="center" rowspan="2" width="25"><img alt="[Important]" src="images/important.png"></td><th align="left"><a name="def_SequentialRule_Syntax"></a>Syntax</th></tr><tr><td valign="top" align="left"><pre class="programlisting">
SequentialRuleAST ::= <span class="token">seq</span> <span class="token">{</span> <a href="def_AsmRuleInvoc.html" title="4.1.2.&nbsp;ASM Rule Invocation">AsmRulesAST</a> <span class="token">}</span> OptSemicolonAST
</pre><p>
A <span class="strong"><strong>sequential rule</strong></span><a name="N11584" class="indexterm"></a> contains
an arbitrary number of nested <a href="def_AsmRuleInvoc.html" title="4.1.2.&nbsp;ASM Rule Invocation">ASM rules</a>.
</p></td></tr></table></div><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note: Semantics"><tr><td valign="top" align="center" rowspan="2" width="25"><img alt="[Note]" src="images/note.png"></td><th align="left"><a name="def_SequentialRule_Semantics"></a>Semantics</th></tr><tr><td valign="top" align="left"><p>
The <span class="strong"><strong>sequential rule</strong></span> executes <span class="emphasis"><em>all</em></span> rules listed inside in the
<span class="emphasis"><em>defined</em></span> order.
</p><p>
The <span class="strong"><strong>sequential rule</strong></span> fails when one of the contained rules
fails. The rules after the failing rule are not executed. The previous state of local variables
are not restored after failure.
</p></td></tr></table></div><div class="highlights"><a name="def_SequentialRule_DefinedIn"></a><p><b>Defined In:&nbsp;</b>
<a href="def_CompoundRule.html" title="4.3.1.&nbsp;Compound Rule">compound rule</a>
</p></div><div class="highlights"><a name="def_SequentialRule_SeeAlso"></a><p><b>See Also:&nbsp;</b>
<a href="def_ParallelRule.html" title="4.3.3.&nbsp;Parallel Rule">parallel rule</a>, <a href="def_RandomRule.html" title="4.3.4.&nbsp;Random Rule">random rule</a>
</p></div></div><div class="navfooter"><hr><table summary="Navigation footer" width="100%"><tr><td align="left" width="40%"><a accesskey="p" href="def_CompoundRule.html">Prev</a>&nbsp;</td><td align="center" width="20%"><a accesskey="u" href="sec_ASMCompoundRules.html">Up</a></td><td align="right" width="40%">&nbsp;<a accesskey="n" href="def_ParallelRule.html">Next</a></td></tr><tr><td valign="top" align="left" width="40%">4.3.1.&nbsp;Compound Rule&nbsp;</td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td valign="top" align="right" width="40%">&nbsp;4.3.3.&nbsp;Parallel Rule</td></tr></table></div></body></html>