package unify;

import de.dhbwstuttgart.syntaxtree.type.Type;
import de.dhbwstuttgart.typeinference.Menge;
import de.dhbwstuttgart.typeinference.Pair;
import de.dhbwstuttgart.typeinference.Pair.PairOperator;

public class UnifyPairMengenBuilder {
	
	private Menge<Pair> buildMenge = new Menge<Pair>();
	
	public void addPair(Type t1, Type t2) {
		buildMenge.add(new Pair(t1, t2));
	}
	
	public void addPair(Type t1, Type t2, PairOperator pairOp) {
		buildMenge.add(new Pair(t1, t2, pairOp));
	}
	
	public Menge<Pair> getPairMenge() {
		return buildMenge;
	}
	
	public Menge<Menge<Pair>> getNestedPairMenge() {
		Menge<Menge<Pair>> nested = new Menge<>();
		
		for(Pair p : buildMenge) {
			Menge<Pair> m = new Menge<Pair>();
			m.add(p);
			nested.add(m);
		}
		
		return nested;
	}
	
	public void clear() {
		buildMenge = new Menge<Pair>();
	}
}