factories, builder and first unit test

notizen/stf/Notes

@@ -1,4 +1,11 @@
 - Was sind / wofür brauch man TTO und Classes
 - Unify löst auch zirkuläre Abhängigkeiten a <. b <. c <. a
 	- Tests dazu?
-	- Prüfung im Builder?
+	- Prüfung im Builder?
+	
+- Unterschied Wildcard und FreshWildcard, ExtendsWildcard und FreshExtendsWildcard etc...
+	- FreshWildcard = TPH für Wildcards?
+
+- Warum ist result von unify = Menge<Menge<Pair>> und nicht Menge<Pair>
+
+- Menge Equals überarbeiten (Momentan Reihenfolgensensitiv)

test/unify/UnifyPairMengenBuilder.java

@@ -0,0 +1,35 @@
+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> assumptions = new Menge<Pair>();
+	
+	public void addPair(Type t1, Type t2) {
+		assumptions.add(new Pair(t1, t2));
+	}
+	
+	public void addPair(Type t1, Type t2, PairOperator pairOp) {
+		assumptions.add(new Pair(t1, t2, pairOp));
+	}
+	
+	public Menge<Pair> getPairMenge() {
+		return assumptions;
+	}
+	
+	public Menge<Menge<Pair>> getNestedPairMenge() {
+		Menge<Menge<Pair>> nested = new Menge<>();
+		
+		for(Pair p : assumptions) {
+			Menge<Pair> m = new Menge<Pair>();
+			m.add(p);
+			nested.add(m);
+		}
+		
+		return nested;
+	}
+}

test/unify/UnifyTest.java

@@ -1,67 +1,68 @@
 package unify;
 
+import junit.framework.Assert;
+
 import org.junit.Test;
 
-import de.dhbwstuttgart.syntaxtree.Class;
 import de.dhbwstuttgart.syntaxtree.type.RefType;
-import de.dhbwstuttgart.syntaxtree.type.Type;
 import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
 import de.dhbwstuttgart.typeinference.Menge;
 import de.dhbwstuttgart.typeinference.Pair;
-import de.dhbwstuttgart.typeinference.unify.FC_TTO;
+import de.dhbwstuttgart.typeinference.Pair.PairOperator;
 import de.dhbwstuttgart.typeinference.unify.Unify;
 
 public class UnifyTest {
 	
 	@Test
 	public void unifyTestSimpleTypes() {
-		
-		/*
-		 * Input
-		 */
-		Type tph1 = TypePlaceholder.backdoorCreate("b");
-		Type tph2 = TypePlaceholder.backdoorCreate("a");
-		
-		RefType rt1 = new RefType("java.lang.Boolean", null, 0);
-		RefType rt2 = new RefType("java.lang.Integer", null, 0);
-		
-		Menge<Pair> assumptions = new Menge<Pair>();
-		
-		// b <. Boolean <. a <. Integer 
-		assumptions.add(new Pair(tph1, rt1));
-		assumptions.add(new Pair(rt1, tph2));
-		assumptions.add(new Pair(tph2, rt2));
-		
-		/*
-		 * FC TTO
-		 */
-		Menge<Pair> fc = new Menge<Pair>();
 
-		// String <. Boolean <. Integer
-		fc.add(new Pair(new RefType("java.lang.String", null, 0), new RefType("java.lang.Boolean", null, 0)));
-		fc.add(new Pair(new RefType("java.lang.Boolean", null, 0), new RefType("java.lang.Integer", null, 0))); 
-		
-		Menge tto = (Menge) fc.clone();
-		
-		Menge<Class> classes = new Menge<Class>();
-		
-		classes.add(new Class("java.lang.Boolean", 0));
-		classes.add(new Class("java.lang.String", 0));
-		classes.add(new Class("java.lang.Integer", 0));
-		
-		// Was ist tto und classes?
-		FC_TTO fctto = new FC_TTO(fc, tto, null);
-			
-		System.out.println(Unify.unify(assumptions, fctto));
 	}
 	
 	@Test
 	public void unifyTestInheritance() {
 		
+		// Init Factories and Builders
+		UnifyTypeFactory typeFactory = new UnifyTypeFactory();
+		Unify_FC_TTO_Builder fcBuilder = new Unify_FC_TTO_Builder();
+		UnifyPairMengenBuilder assumptionBuilder = new UnifyPairMengenBuilder();
+		UnifyPairMengenBuilder resultBuilder = new UnifyPairMengenBuilder();
+		
+		// Init Types
+		RefType tBool = typeFactory.GetSimpleType("java.lang.Boolean");
+		RefType tString = typeFactory.GetSimpleType("java.lang.String");
+		RefType tInt = typeFactory.GetSimpleType("java.lang.Integer");
+		TypePlaceholder tphA = typeFactory.GetTypePlaceholder("a");
+		
+		// Build inheritance hierachy
+		// Bool <. String <. Int
+		fcBuilder.AddInheritance(tBool, tString);
+		fcBuilder.AddInheritance(tString, tInt);
+		
+		// Build Assumptions
+		assumptionBuilder.addPair(tphA, tString);
+
+		// Build expected result
+		resultBuilder.addPair(tphA, tBool, PairOperator.Equal);
+		resultBuilder.addPair(tphA, typeFactory.GetExtendsType(tBool), PairOperator.Equal);
+		resultBuilder.addPair(tphA, tString, PairOperator.Equal);
+		resultBuilder.addPair(tphA, typeFactory.GetExtendsType(tString), PairOperator.Equal);
+		
+		// Assert
+		Menge<Menge<Pair>> actualResult = Unify.unify(assumptionBuilder.getPairMenge(), fcBuilder.Get_FC_TTO());
+		
+		System.out.println(actualResult);
+		System.out.println("-------------------");
+		System.out.println(resultBuilder.getNestedPairMenge());
+		
+		Assert.assertTrue(mengeEquals(resultBuilder.getNestedPairMenge(), actualResult));
 	}
 	
 	@Test
 	public void unifyTestWildcards() {
 		
 	}
+	
+	protected boolean mengeEquals(Menge<Menge<Pair>> m1, Menge<Menge<Pair>> m2) {
+		return m1.containsAll(m2) && m2.containsAll(m1);
+	}
 }

test/unify/UnifyTypeFactory.java

@@ -0,0 +1,43 @@
+package unify;
+
+import de.dhbwstuttgart.syntaxtree.type.Type;
+import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
+import de.dhbwstuttgart.syntaxtree.type.WildcardType;
+import de.dhbwstuttgart.syntaxtree.type.ExtendsWildcardType;
+import de.dhbwstuttgart.syntaxtree.type.ObjectType;
+import de.dhbwstuttgart.syntaxtree.type.RefType;
+import de.dhbwstuttgart.syntaxtree.type.SuperWildcardType;
+import de.dhbwstuttgart.typeinference.Menge;
+import de.dhbwstuttgart.typeinference.Pair;
+import de.dhbwstuttgart.typeinference.Pair.PairOperator;
+
+public class UnifyTypeFactory {
+	
+	public RefType GetSimpleType(String name, Type... parameters) {
+		if(parameters.length == 0)	
+			return new RefType(name, null, 0);
+		
+		Menge<Type> typeParams = new Menge<Type>();
+		
+		for(Type t : parameters)
+			typeParams.add(t);
+		
+		return new RefType(name, typeParams, null, 0);
+	}
+	
+	public ExtendsWildcardType GetExtendsType(ObjectType extendedType) {
+		return new ExtendsWildcardType(extendedType);
+	}
+	
+	public SuperWildcardType GetSuperType(ObjectType superedType) {
+		return new SuperWildcardType(superedType);
+	}
+	
+	public WildcardType GetWildcardType() {
+		return new WildcardType(null, null, 0);
+	}
+	
+	public TypePlaceholder GetTypePlaceholder(String name) {
+		return TypePlaceholder.backdoorCreate(name);
+	}
+}

test/unify/Unify_FC_TTO_Builder.java

@@ -0,0 +1,28 @@
+package unify;
+
+import de.dhbwstuttgart.typeinference.Menge;
+import de.dhbwstuttgart.typeinference.Pair;
+import de.dhbwstuttgart.typeinference.unify.FC_TTO;
+import de.dhbwstuttgart.syntaxtree.Class;
+import de.dhbwstuttgart.syntaxtree.type.RefType;
+import de.dhbwstuttgart.syntaxtree.type.Type;
+
+public class Unify_FC_TTO_Builder {
+	
+	private Menge<Pair> fc = new Menge<Pair>();
+	private Menge<Class> classes = new Menge<Class>();
+	
+	public void AddInheritance(Type t1, Type t2) {
+		if(t1 instanceof RefType)
+			classes.add(new Class(t1.get_Name(), t1.getOffset()));
+		
+		if(t2 instanceof RefType)
+			classes.add(new Class(t2.get_Name(), t2.getOffset()));
+		
+		fc.add(new Pair(t1, t2));
+	}
+	
+	public FC_TTO Get_FC_TTO() {
+		return new FC_TTO(fc, (Menge<?>) fc.clone(), classes);
+	}
+}