projects / deliverable / titan.core.git / blame
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| 970ed795 | 1 | <!-- |
| 3abe9331 | 2 | Copyright (c) 2000-2015 Ericsson Telecom AB |
| 970ed795 EL |
3 | |
| 4 | All rights reserved. This program and the accompanying materials | |
| 5 | are made available under the terms of the Eclipse Public License v1.0 | |
| 6 | which accompanies this distribution, and is available at | |
| 7 | http://www.eclipse.org/legal/epl-v10.html | |
| 8 | --> | |
| 9 | <html> | |
| 10 | <head> | |
| 11 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| 12 | <meta http-equiv="Content-Language" content="en-us"> | |
| 13 | <title>component</title> | |
| 14 | </head> | |
| 15 | <body bgcolor="#DAD3C5" vlink="#0094D2" link="#003258"> | |
| 16 | <table align="left" border="0" cellspacing="0" cellpadding="0" valign=top> | |
| 17 | <tr> | |
| 18 | <td width=105 height=40><a href="https://projects.eclipse.org/projects/tools.titan"><img src="../images/titan_transparent.gif" border=0 width=105 height=40 align="left" alt="Titan"></a></td> | |
| 19 | </tr> | |
| 20 | </table> | |
| 21 | <table border="0" align="right" cellpadding="0" cellspacing="0"> | |
| 22 | <tr> | |
| 23 | <td><a href="../titan_main.html" alt="contents"><img border="0" src="../images/ao.jpg" width="53" height="40"></a></td> | |
| 24 | <td><a href="../titan_index.html" alt="index"><img border="0" src="../images/up.jpg" width="53" height="40"></a></td> | |
| 25 | <td><a href="complement.html" alt="previous"><img border="0" src="../images/left.jpg" width="53" height="40"></a></td> | |
| 26 | <td><a href="connect.html" alt="next"><img border="0" src="../images/right.jpg" width="53" height="40"></a></td> | |
| 27 | </tr> | |
| 28 | </table> | |
| 29 | <p><br clear="all"> | |
| 30 | </p> | |
| 31 | <hr> | |
| 32 | <h1>component</h1> | |
| 33 | <hr align="left" width="75%"> | |
| 34 | <p>The keyword is used to define a test component type. | |
| 35 | <ul> | |
| 36 | <li>Test component is an entity on which test behavior is executed</li> | |
| 37 | <li>Test component is owner of the test ports</li> | |
| 38 | <li>Constants, variable and timers declared in the component type are visible from all functions and test cases, which execute on that very component type</li> | |
| 39 | <li>Several test components can run in parallel – each executes independently</li> | |
| 40 | </ul> | |
| 41 | <p>Related keywords:</p> | |
| 42 | <ul> | |
| 43 | <li><a href="type.html"><b><font face="Courier New" color="#003258" size="4">type</font></b></a></li> | |
| 44 | <li><a href="port.html"><b><font face="Courier New" color="#003258" size="4">port</font></b></a></li> | |
| 45 | <li><a href="const.html"><b><font face="Courier New" color="#003258" size="4">const</font></b></a></li> | |
| 46 | <li><a href="var.html"><b><font face="Courier New" color="#003258" size="4">var</font></b></a></li> | |
| 47 | <li><a href="timer.html"><b><font face="Courier New" color="#003258" size="4">timer</font></b></a></li> | |
| 48 | </ul> | |
| 49 | <hr align="left" width="50%"> | |
| 50 | <div align="center"> | |
| 51 | <center> | |
| 52 | <table border="0" width="90%" bgcolor="#FFB599" cellpadding="4"> | |
| 53 | <tr> | |
| 54 | <td width="100%"> | |
| 55 | <h3 align="center"><font face="Courier New" color="#003258" size="5"><b>type component </b></font> <i>component_identifier </i><font face="Courier New" color="#003258" size="5"><b>{</b></font> | |
| 56 | [ <i>port_instance</i><font face="Courier New" color="#003258" size="5"><b>;</b></font> ] [ <i>const_def</i><font face="Courier New" color="#003258" size="5"><b>;</b></font> ] [ <i>var_instance</i><font | |
| 57 | face="Courier New" color="#003258" size="5"><b>;</b></font> ] [ <i>timer_instance</i><font face="Courier New" color="#003258" size="5"><b>;</b></font> ] <font face="Courier New" | |
| 58 | color="#003258" size="5"><b>};</b></font></h3> | |
| 59 | </td> | |
| 60 | </tr> | |
| 61 | </table> | |
| 62 | </center> | |
| 63 | </div> | |
| 64 | <ul> | |
| 65 | <li> | |
| 66 | <p>The <a href="type.html"><font face="Courier New" color="#003258" size="4"><b>type</a> component</b></font> keywords introduce the component definition.</p> | |
| 67 | </li> | |
| 68 | <li> | |
| 69 | <p><i>component_identifier</i> is the name used to refer to the component. Must begin with a letter, may contain letters, numbers and underscore characters. <br> | |
| 70 | According to the Naming convention, the suffix <b> _CT</b> is recommended.</p> | |
| 71 | </li> | |
| 72 | <li> | |
| 73 | <p><i>port_instance</i> identifies the ports owned by the port. For the syntax see the initial keyword <a href="port.html"><b><font face="Courier New" color="#003258" | |
| 74 | size="4">port</font></b></a>.</p> | |
| 75 | </li> | |
| 76 | <li> | |
| 77 | <p><i>const_def</i> defines constants visible from all functions and test cases, which execute on that very component type. For the syntax see the initial keyword <a href="const.html" | |
| 78 | target="_blank"><b><font face="Courier New" color="#003258" size="4">const</font></b></a>.</p> | |
| 79 | </li> | |
| 80 | <li> | |
| 81 | <p><i>var_instance</i> identifies variables visible from all functions and test cases, which execute on that very component type. For the syntax see the initial keyword <a href="var.html" | |
| 82 | target="_blank"><b><font face="Courier New" color="#003258" size="4">var</font></b></a>.</p> | |
| 83 | </li> | |
| 84 | <li> | |
| 85 | <p><i>timer_instance</i> identifies timers visible from all functions and test cases, which execute on that very component type. For the syntax see the initial keyword <a href="timer.html" | |
| 86 | target="_blank"><b><font face="Courier New" color="#003258" size="4">timer</font></b></a>.</p> | |
| 87 | </li> | |
| 88 | </ul> | |
| 89 | <p>Every element within the curly brackets may be repeated.</p> | |
| 90 | <hr align="left" width="50%"> | |
| 91 | <p>Example 1: | |
| 92 | <p><font face="Courier New">type component MyComponentType_CT {<br> | |
| 93 | port MyMessagePortType_PT P1_PCO,P2_PCO;<br> | |
| 94 | const bitstring c_MyConst := ’1001’B; <br> | |
| 95 | var integer v_MyVar; <br> | |
| 96 | timer T_MyTimer := 1.0; <br> | |
| 97 | }</font> | |
| 98 | <p>The component called MyComponentType_CT is declared. <br> | |
| 99 | It contains two ports (P1_PCO,P2_PCO) of type MyMessagePortType_PT, <br> | |
| 100 | a constant called c_MyConst which equals 1001, <br> | |
| 101 | a variable called v_MyVar <br> | |
| 102 | and a timer called T_MyTimer with a default value of 1 second.</p> | |
| 103 | <hr align="left" width="25%"> | |
| 104 | <hr align="left" width="25%"> | |
| 105 | <p><a HREF="BNF.html#componentdef">BNF definition</a> of <font face="Courier New"> component</font></p> | |
| 106 | </body> | |
| 107 | </html> |