il.ac.bgu.cs.bp.bpjs.analysis.Requirements Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright 2017 BPjs group BGU.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
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* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package il.ac.bgu.cs.bp.bpjs.analysis;
/**
* Convenience class for creating requirement b-threads for verification.
*
* @author michael
*/
public class Requirements {
/**
* Creates a b-thread that causes a false assertion when an event with a
* given name is selected.
*
* Sample usage, adding a requirement that a {@code BEvent("crash")} is
* never selected:
*
*
* BProgram bprog = ...
* bprog.appendSource( Requirements.eventNotSelected("crash") );
*
*
*
* @param eventName The name of the selected event.
* @return Source code for the b-thread.
*/
public static final String eventNotSelected( String eventName ) {
return "bp.registerBThread('eventNotSelected-" + eventName + "', function(){ "
+ "\n bp.sync({waitFor:bp.Event('" + eventName + "')});"
+ "\n bp.ASSERT(false, 'event \"" + eventName + "\" selected.');"
+ "\n });";
}
// prevent instantiation.
private Requirements(){}
}