| <html><head><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>4.2.7. Log 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_ASMSimpleRules.html" title="4.2. Simple ASM Rules"><link rel="prev" href="def_PrintRule.html" title="4.2.6. Print Rule"><link rel="next" href="sec_ASMCompoundRules.html" title="4.3. Compound ASM Rules"></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">4.2.7. Log Rule</th></tr><tr><td align="left" width="20%"><a accesskey="p" href="def_PrintRule.html">Prev</a> </td><th align="center" width="60%">4.2. Simple ASM Rules</th><td align="right" width="20%"> <a accesskey="n" href="sec_ASMCompoundRules.html">Next</a></td></tr></table><hr></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="def_LogRule"></a>4.2.7. Log 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_LogRule_Description"></a>Description</th></tr><tr><td valign="top" align="left"><p> | |
| The <span class="strong"><strong>log rule</strong></span><a name="N11470" class="indexterm"></a> prints a message into the Eclipse Error Log. | |
| </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_LogRule_Syntax"></a>Syntax</th></tr><tr><td valign="top" align="left"><pre class="programlisting"> | |
| LogRuleAST ::= <span class="token">log</span> <span class="token">(</span> LogLevelAST <span class="token">,</span> <a href="def_ArithmeticTerm.html" title="5.3.1. Arithmetic Term">ArithmeticTermAST</a> <span class="token">)</span> <span class="token">;</span> | |
| LogLevelAST ::= <span class="token">debug</span> | <span class="token">info</span> | <span class="token">warning</span> | <span class="token">error</span> | <span class="token">fatal</span> | |
| </pre></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_LogRule_Semantics"></a>Semantics</th></tr><tr><td valign="top" align="left"><p> | |
| The <span class="strong"><strong>log rule</strong></span> evaluates its argument <a href="def_Term.html" title="5.1.1. ASM Term">term</a>and | |
| prints the resulted value to the <span class="emphasis"><em>Error Log View</em></span>, which is a general Eclipse view. | |
| </p><p> | |
| The <span class="strong"><strong>log level</strong></span><a name="N114B4" class="indexterm"></a> of the message can be <code class="computeroutput">debug</code>, | |
| <code class="computeroutput">info</code>, <code class="computeroutput">warning</code>, <code class="computeroutput">error</code>or <code class="computeroutput">fatal</code>. | |
| This determines how Eclipse handles and represents the message. | |
| </p></td></tr></table></div><div class="highlights"><a name="def_LogRule_DefinedIn"></a><p><b>Defined In: </b> | |
| <a href="def_SimpleRule.html" title="4.2.1. Simple Rule">simple rule</a> | |
| </p></div><div class="highlights"><a name="def_LogRule_SeeAlso"></a><p><b>See Also: </b> | |
| <a href="def_PrintRule.html" title="4.2.6. Print Rule">print 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_PrintRule.html">Prev</a> </td><td align="center" width="20%"><a accesskey="u" href="sec_ASMSimpleRules.html">Up</a></td><td align="right" width="40%"> <a accesskey="n" href="sec_ASMCompoundRules.html">Next</a></td></tr><tr><td valign="top" align="left" width="40%">4.2.6. Print Rule </td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td valign="top" align="right" width="40%"> 4.3. Compound ASM Rules</td></tr></table></div></body></html> |