public void Visit(DThing dThing) { Result = new DTransformedThing(dThing, Arg); }
public void Visit(CThing cThing) { Result = new CTransformedThing(cThing, Arg); }
public void Visit(AThing aThing) { Result = new ATransformedThing(aThing, Arg); }
public void Visit(BThing bThing) { Result = new BTransformedThing(bThing, Arg); }
public void Visit(IThing iThing) { Result = null; }