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package com.ibm.wala.demandpa.alg;
import com.ibm.wala.demandpa.alg.statemachine.StateMachine.State;
import com.ibm.wala.ipa.callgraph.propagation.cfa.CallerSiteContext;
import com.ibm.wala.util.collections.ImmutableStack;
/**
* Representation for a calling context.
*/
public class CallStack extends ImmutableStack<CallerSiteContext> implements State {
public static CallStack emptyCallStack() {
CallStack ret = new CallStack(new CallerSiteContext[0]);
return ret;
}
protected CallStack(CallerSiteContext[] entries) {
super(entries);
}
@Override
protected CallStack makeStack(CallerSiteContext[] tmpEntries) {
return new CallStack(tmpEntries);
}
@Override
protected CallerSiteContext[] makeInternalArray(int size) {
return new CallerSiteContext[size];
}
@Override
public CallStack pop() {
final CallStack ret = (CallStack) super.pop();
return ret;
}
@Override
public CallStack push(CallerSiteContext entry) {
final CallStack ret = (CallStack) super.push(entry);
return ret;
}
}