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package bjc.rgens.parser;
import bjc.rgens.parser.elements.CaseElement;
import java.util.List;
/*
* @NOTE
* If at some point we add new case types, they should go into subclasses,
* not into this class.
*/
/**
* A case in a rule in a randomized grammar.
*
* @author EVE
*/
public abstract class RuleCase {
/**
* Debugging name for this case.
*/
public String debugName;
/**
* Serial number for this case.
*/
public final int serial;
private static int nextSerial = 0;
/**
* The rule this case belongs to.
*/
public Rule belongsTo;
/**
* The elements that make up this case.
*/
public List<CaseElement> elementList;
/**
* Create a new case of the specified type that takes a element list
* parameter.
*
* @param elements
* The element list parameter of the case.
*
*/
protected RuleCase(List<CaseElement> elements) {
elementList = elements;
serial = nextSerial;
nextSerial += 1;
}
/**
* Generate this case.
*
* @param state The state to use.
*/
public abstract void generate(GenerationState state);
/**
* Create a new case with a different set of elements.
*
* @param elements The elements for this case.
*
* @return The case with the same settings, but a different set of elements.
*/
public abstract RuleCase withElements(List<CaseElement> elements);
@Override
public String toString() {
if(debugName != null) {
return String.format("Case %s (#%d) of %s", debugName, serial, belongsTo);
}
return String.format("Case #%d of %s", serial, belongsTo, serial, belongsTo);
}
}
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