| <html><head><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>1.1.1. VTCL file</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_VtclFile.html" title="1.1. VTCL Files"><link rel="prev" href="sec_VtclFile.html" title="1.1. VTCL Files"><link rel="next" href="def_NamespaceDefinition.html" title="1.1.2. Namespace Definition"></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">1.1.1. VTCL file</th></tr><tr><td align="left" width="20%"><a accesskey="p" href="sec_VtclFile.html">Prev</a> </td><th align="center" width="60%">1.1. VTCL Files</th><td align="right" width="20%"> <a accesskey="n" href="def_NamespaceDefinition.html">Next</a></td></tr></table><hr></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="def_VtclFile"></a>1.1.1. VTCL file</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_VtclFile_Description"></a>Description</th></tr><tr><td valign="top" align="left"><p> | |
| A VTCL file contains the definition of one GTASM machine | |
| (i.e. transformation) in the default or in the explicitly defined | |
| namespace. Other namespaces can be imported for direct | |
| accessibility of the elements defined there. | |
| </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_VtclFile_Syntax"></a>Syntax</th></tr><tr><td valign="top" align="left"><pre class="programlisting"> | |
| VTCLFile ::= <a href="def_NamespaceDefinition.html" title="1.1.2. Namespace Definition">NamespaceDefAST</a> <a href="def_NamespaceImport.html" title="1.1.3. Namespace Import">NamespaceImportsAST</a> <a href="def_Machine.html" title="1.2.1. GTASM Machine Definition">GTASMDefAST</a> | |
| </pre><p> | |
| A <span class="strong"><strong>VTCL file</strong></span><a name="N100A8" class="indexterm"></a> | |
| contains an optional | |
| (<a href="def_NamespaceDefinition.html" title="1.1.2. Namespace Definition">namespace definition</a>), zero or more | |
| <a href="def_NamespaceImport.html" title="1.1.3. Namespace Import">namespace import</a> and (at least) one | |
| (<a href="def_Machine.html" title="1.2.1. GTASM Machine Definition">transformation definition</a>). | |
| </p><p> | |
| In addition, a VTCL file can contain comments. The part of | |
| the VTCL file is handled as comment that is | |
| <div class="itemizedlist"><ul type="disc"><li><p> | |
| after two slashes ("//") in a single line, | |
| </p></li><li><p> | |
| between the marks "/*" and "*/" even through multiple lines. | |
| </p></li></ul></div> | |
| </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_VtclFile_Semantics"></a>Semantics</th></tr><tr><td valign="top" align="left"><p> | |
| If a namespace is defined explicitly then all GTASMs defined in the file are | |
| interpreted as parts of this namespace, otherwise GTASMs are part of the | |
| default namespace. The default namespace for a <span class="strong"><strong>VTCL file</strong></span> | |
| is the <span class="emphasis"><em>root namespace</em></span>. | |
| </p><p> | |
| Arbitrary number of other namespaces can also be imported; in this case all | |
| model elements defined in or below these namespaces can be referenced | |
| inside of the machine(s) defined in the file with their local names or | |
| qualified names local to the given namespace. | |
| </p></td></tr></table></div><div class="caution" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Caution: Constraints"><tr><td valign="top" align="center" rowspan="2" width="25"><img alt="[Caution]" src="images/caution.png"></td><th align="left">Constraints</th></tr><tr><td valign="top" align="left"><p> | |
| It is strongly recommended to define a single machine within a VTCL file, which | |
| might be enforced by future VTCL versions. | |
| </p></td></tr></table></div></div><div class="navfooter"><hr><table summary="Navigation footer" width="100%"><tr><td align="left" width="40%"><a accesskey="p" href="sec_VtclFile.html">Prev</a> </td><td align="center" width="20%"><a accesskey="u" href="sec_VtclFile.html">Up</a></td><td align="right" width="40%"> <a accesskey="n" href="def_NamespaceDefinition.html">Next</a></td></tr><tr><td valign="top" align="left" width="40%">1.1. VTCL Files </td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td valign="top" align="right" width="40%"> 1.1.2. Namespace Definition</td></tr></table></div></body></html> |