List append works

src/main/java/de/dhbwstuttgart/bytecode/Codegen.java

@@ -1739,7 +1739,7 @@ public class Codegen {
                 methodName = fromMethod.name;
 
                 fromReturn = converter.convert(fromMethod.getReturnType());
-                var fromParams = converter.convert(fromMethod.getParameterList(), converter.generics.javaGenerics()).stream().map(m -> m.pattern().type()).toArray(TargetType[]::new);
+                var fromParams = converter.convert(fromMethod.getParameterList()).stream().map(m -> m.pattern().type()).toArray(TargetType[]::new);
                 fromDescriptor = TargetMethod.getDescriptor(fromReturn, fromParams);
             } else {
                 fromReturn = funNType.returnArguments() > 0 ? TargetType.Object : null;
@@ -1749,7 +1749,7 @@ public class Codegen {
             var toClass = compiler.getClass(new JavaClassName(pair.to.name()));
             var toMethod = toClass.getMethods().stream().filter(m -> (m.modifier & ACC_ABSTRACT) != 0).findFirst().orElseThrow();
             var toReturn = converter.convert(toMethod.getReturnType());
-            var toParams = converter.convert(toMethod.getParameterList(), converter.generics.javaGenerics()).stream().map(m -> m.pattern().type()).toArray(TargetType[]::new);
+            var toParams = converter.convert(toMethod.getParameterList()).stream().map(m -> m.pattern().type()).toArray(TargetType[]::new);
             var toDescriptor = TargetMethod.getDescriptor(toReturn, toParams);
 
             // Generate wrapper method

src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java

@@ -18,6 +18,7 @@ import de.dhbwstuttgart.target.tree.expression.*;
 import de.dhbwstuttgart.target.tree.type.*;
 import de.dhbwstuttgart.typeinference.result.*;
 
+import java.lang.annotation.Target;
 import java.util.*;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
@@ -32,9 +33,9 @@ public class ASTToTargetAST {
 
     public static RefType OBJECT = ASTFactory.createObjectType(); // TODO It would be better if I could call this directly but the hashcode seems to change
 
-    protected List<Generics> all;
-    public Generics generics;
-    public List<Generics> currentMethodOverloads;
+    public List<Generics> all;
+    //public Generics generics;
+    //public List<Generics> currentMethodOverloads;
 
     final Map<ClassOrInterface, Set<GenericTypeVar>> userDefinedGenerics = new HashMap<>();
     final Map<Method, Set<SignaturePair>> tphsInMethods = new HashMap<>();
@@ -54,13 +55,13 @@ public class ASTToTargetAST {
         return all.stream().map(generics -> new GenericsResult(generics.javaGenerics)).toList();
     }
 
-    public TargetExpression convert(Pattern pattern) {
-        var converter = new StatementToTargetExpression(this);
+    public TargetExpression convert(Pattern pattern, IGenerics generics) {
+        var converter = new StatementToTargetExpression(this, generics);
         pattern.accept(converter);
         return converter.result;
     }
 
-    public record Generics(JavaGenerics javaGenerics, TxGenerics txGenerics) {
+    public record Generics(IGenerics javaGenerics, IGenerics txGenerics) {
     }
 
 
@@ -83,7 +84,6 @@ public class ASTToTargetAST {
         for (var set : resultSets) {
             all.add(new Generics(new JavaGenerics(this, set), new TxGenerics(this, set)));
         }
-        this.generics = all.get(0);
     }
 
     public void addSignaturePair(TypePlaceholder signature, RefTypeOrTPHOrWildcardOrGeneric parameter) {
@@ -112,20 +112,23 @@ public class ASTToTargetAST {
             return false;
 
         for (var i = 0; i < pars.size(); i++) {
-            var type1 = convert(pars.get(i).getType(), generics.javaGenerics);
+            var type1 = pars.get(i).getType();
             var type2 = arguments.get(i);
-            if (type1 instanceof TargetGenericType)
-                return true;
-            if (TargetType.toPrimitive(type2).equals(type1))
-                return true;
-            if (!type1.equals(type2))
+            //if (type1 instanceof GenericRefType)
+            //    return true;
+            //if (TargetType.toPrimitive(type2).equals(type1))
+            //    return true;
+            if (type1 instanceof RefType rt) {
+                if (type2 instanceof TargetRefType rt2 && !rt2.name().equals(rt.getName().toString())) {
                     return false;
                 }
+            }
+        }
 
         return true;
     }
 
-    Set<TargetGeneric> convert(Set<GenerateGenerics.Pair> result, GenerateGenerics generics) {
+    Set<TargetGeneric> convert(Set<GenerateGenerics.Pair> result, IGenerics generics) {
         return result.stream().map(p -> {
             if (p instanceof GenerateGenerics.PairLT pair) {
                 return new TargetGeneric(pair.left.resolve().getName(), convert(pair.right.resolve(), generics));
@@ -137,7 +140,7 @@ public class ASTToTargetAST {
         }).collect(Collectors.toSet());
     }
 
-    public List<TargetGeneric> convert(GenericTypeVar typeVar, GenerateGenerics generics) {
+    public List<TargetGeneric> convert(GenericTypeVar typeVar, IGenerics generics) {
         var ret = new ArrayList<TargetGeneric>();
         for (var bound : typeVar.getBounds()) {
             ret.add(new TargetGeneric(typeVar.getName(), generics.getTargetType(bound)));
@@ -146,6 +149,7 @@ public class ASTToTargetAST {
     }
 
     // This finds a common sealed interface type to group together methods that use different records
+    // This function should do matching or unification
     private List<ClassOrInterface> commonSuperInterfaceTypes(TargetType a, TargetType b) {
         if (a instanceof TargetGenericType && b instanceof TargetGenericType) return List.of(ASTFactory.createObjectClass());
         if (a instanceof TargetRefType ta && b instanceof TargetGenericType)
@@ -183,44 +187,28 @@ public class ASTToTargetAST {
         return List.of();
     }
 
-    // TODO This is ugly and probably doesn't work right
-    private boolean patternStrictlyEquals(TargetComplexPattern a, TargetComplexPattern b) {
-        if (!a.name().equals(b.name())) return false;
-        if (a.subPatterns().size() != b.subPatterns().size()) return false;
-        for (var i = 0; i < a.subPatterns().size(); i++) {
-            var p1 = a.subPatterns().get(i);
-            var p2 = b.subPatterns().get(i);
-            if (p1 instanceof TargetComplexPattern pc1 && p2 instanceof TargetComplexPattern pc2 &&
-                patternStrictlyEquals(pc1, pc2)) return false;
-            if (p1 instanceof TargetTypePattern pt1 && p2 instanceof TargetTypePattern pt2) {
-                if (pt1.type() instanceof TargetGenericType && pt2.type() instanceof TargetGenericType) continue;
-            }
-            if (!p1.type().equals(p2.type()) && commonSuperInterfaceTypes(p1.type(), p2.type()).isEmpty()) return false;
-        }
-        return true;
-    }
-
-    private boolean canCombine(TargetMethod m1, TargetMethod m2) {
-        if (!m1.name().equals(m2.name())) return false;
-        var s1 = m1.signature();
-        var s2 = m2.signature();
-        if (s1.parameters().size() != s2.parameters().size()) return false;
-        if (s1.parameters().isEmpty()) return false;
-        for (var i = 0; i < s1.parameters().size(); i++) {
-            var p1 = s1.parameters().get(i).pattern();
-            var p2 = s2.parameters().get(i).pattern();
+    private boolean canCombine(Signature m1, Signature m2) {
+        var pl1 = m1.java.parameters();
+        var pl2 = m2.java.parameters();
+        if (pl1.size() != pl2.size()) return false;
+        if (pl1.isEmpty()) return false;
+        for (var i = 0; i < pl1.size(); i++) {
+            var p1 = pl1.get(i).pattern();
+            var p2 = pl2.get(i).pattern();
+            // TPH <> RefType sind nicht unterscheidbar
             if (p1.type() instanceof TargetGenericType || p2.type() instanceof TargetGenericType) continue;
+            // Pattern(X) <> Pattern(Y) ist nicht unterscheidbar
             if (p1 instanceof TargetComplexPattern pc1 && p2 instanceof TargetComplexPattern pc2 &&
-                patternStrictlyEquals(pc1, pc2)) return false;
-            if (!p1.equals(p2) && commonSuperInterfaceTypes(p1.type(), p2.type()).isEmpty()) return false;
+                pc1.type().equals(pc2.type())) continue;
+            if (!p1.equals(p2)) return false;
         }
         return true;
     }
 
-    private record Combination(TargetMethod a, TargetMethod b) {
+    private record Combination(MethodWithTphs a, MethodWithTphs b) {
         @Override
         public boolean equals(Object o) {
-            if (!(o instanceof Combination(TargetMethod a1, TargetMethod b1))) return false;
+            if (!(o instanceof Combination(MethodWithTphs a1, MethodWithTphs b1))) return false;
             return this.a.equals(a1) && this.b.equals(b1) ||
                 this.a.equals(b1) && this.b.equals(a1);
         }
@@ -231,10 +219,10 @@ public class ASTToTargetAST {
         }
     }
 
-    public List<List<TargetMethod>> groupOverloads(ClassOrInterface input, List<Method> methods) {
-        var mapOfTargetMethods = new HashMap<Generics, TargetMethod[]>();
-        for (var generics : all) {
-            mapOfTargetMethods.put(generics, new TargetMethod[methods.size()]);
+    private List<List<MethodWithTphs>> groupOverloads(ClassOrInterface input, List<Method> methods) {
+        var mapOfTargetMethods = new HashMap<Generics, MethodWithTphs[]>();
+        for (var gen : all) {
+            mapOfTargetMethods.put(gen, new MethodWithTphs[methods.size()]);
         }
 
         for (var i = 0; i < methods.size(); i++) {
@@ -243,14 +231,14 @@ public class ASTToTargetAST {
             var methodsWithTphs = convert(input, method);
             for (var m : methodsWithTphs) {
                 var resultMethods = mapOfTargetMethods.get(m.generics);
-                resultMethods[i] = m.method;
+                resultMethods[i] = new MethodWithTphs(m.method, m.generics, m.signature);
             }
         }
-        /*System.out.println("============== INPUT ==============");
+        System.out.println("============== INPUT ==============");
         for (var m : mapOfTargetMethods.values()) {
-            for (var v : m) System.out.println(v.name() + " " + v.getSignature());
+            for (var v : m) if (v != null) System.out.println(v.method.name + " " + v.signature.java.getSignature());
             System.out.println();
-        }*/
+        }
 
         var allCombinations = new HashSet<Set<Combination>>();
         // Combine methods based on their signature and position in the result set
@@ -268,8 +256,8 @@ public class ASTToTargetAST {
 
                     var combinations = new HashSet<Combination>();
 
-                    if (canCombine(m1, m2)) {
-                        //System.out.println("     Combining " + m1.getSignature() + " and " + m2.getSignature());
+                    if (canCombine(m1.signature, m2.signature)) {
+                        System.out.println("     Combining " + m1.signature.java.getSignature() + " and " + m2.signature.java.getSignature());
                         combinations.add(new Combination(m1, m2));
                         for (var j = 0; j < methods.size(); j++) {
                             if (j == i) continue;
@@ -278,10 +266,10 @@ public class ASTToTargetAST {
                             var m4 = resMeth1[j];
                             if (m4 == null) continue;
                             combinations.add(new Combination(m4, m3));
-                            //System.out.println("Also Combining " + m4.getSignature() + " and " + m3.getSignature());
+                            System.out.println("Also Combining " + m4.signature.java.getSignature() + " and " + m3.signature.java.getSignature());
                         }
                     } else {
-                        //System.out.println(" Not Combining " + m1.getSignature() + " and " + m2.getSignature());
+                        System.out.println(" Not Combining " + m1.signature.java.getSignature() + " and " + m2.signature.java.getSignature());
                     }
                     if (!combinations.isEmpty()) allCombinations.add(combinations);
                 }
@@ -291,14 +279,14 @@ public class ASTToTargetAST {
         if (allCombinations.isEmpty()) allCombinations.add(new HashSet<>());
 
         // Combine back into output format
-        var r0 = new HashSet<Set<TargetMethod>>();
+        var r0 = new HashSet<Set<MethodWithTphs>>();
         for (var combinations : allCombinations) {
-            var r1 = new HashSet<Set<TargetMethod>>();
+            var r1 = new HashSet<Set<MethodWithTphs>>();
             // This is used to weed out duplicates
-            var uniqued = new HashSet<TargetMethod>();
+            var uniqued = new HashSet<MethodWithTphs>();
             // We go over all methods in the result
             for (var g : all) for (var i = 0; i < methods.size(); i++) {
-                var r2 = new HashSet<TargetMethod>();
+                var r2 = new HashSet<MethodWithTphs>();
                 var m = mapOfTargetMethods.get(g)[i];
                 if (m == null) continue;
                 if (!uniqued.contains(m)) {
@@ -340,13 +328,14 @@ public class ASTToTargetAST {
 
         System.out.println("============== OUTPUT ==============");
         for (var l : result) {
-            for (var m : l) System.out.println(m.name() + " " + m.getSignature());
+            for (var m : l) System.out.println(m.method.name + " " + m.signature.java.getSignature());
             System.out.println();
         }
         return result;
     }
 
     public TargetStructure convert(ClassOrInterface input) {
+        var generics = all.getFirst();
         Set<TargetGeneric> javaGenerics = new HashSet<>();
         Set<TargetGeneric> txGenerics = new HashSet<>();
 
@@ -359,7 +348,7 @@ public class ASTToTargetAST {
                 var next = genericsIter.next();
                 userDefinedGenerics.add(next);
                 // TODO Support multiple bounds
-                javaGenerics.add(new TargetGeneric(next.getName(), convert(next.getBounds().get(0))));
+                javaGenerics.add(new TargetGeneric(next.getName(), convert(next.getBounds().getFirst(), generics.javaGenerics)));
             }
         } else {
             this.userDefinedGenerics.put(input, new HashSet<>());
@@ -370,18 +359,20 @@ public class ASTToTargetAST {
 
         TargetBlock fieldInitializer = null;
         if (input.getfieldInitializations().isPresent())
-            fieldInitializer = convert(input.getfieldInitializations().get().block);
+            fieldInitializer = convert(input.getfieldInitializations().get().block, generics.javaGenerics);
         TargetBlock finalFieldInitializer = fieldInitializer;
 
         var superInterfaces = input.getSuperInterfaces().stream().map(clazz -> convert(clazz, generics.javaGenerics)).toList();
-        var constructors = input.getConstructors().stream().map(constructor -> this.convert(input, constructor, finalFieldInitializer)).flatMap(List::stream).toList();
-        var fields = input.getFieldDecl().stream().map(this::convert).toList();
+        var constructors = input.getConstructors().stream().map(constructor -> this.convert(input, constructor, finalFieldInitializer, generics)).flatMap(List::stream).toList();
+        var fields = input.getFieldDecl().stream().map(f -> convert(f, generics.javaGenerics)).toList();
         var methods = groupOverloads(input, input.getMethods()).stream().map(m -> generatePatternOverloads(input, m)).flatMap(List::stream)
                 .collect(Collectors.toSet()).stream().toList(); // Unique generated methods
 
         TargetMethod staticConstructor = null;
-        if (input.getStaticInitializer().isPresent())
-            staticConstructor = this.convert(input, input.getStaticInitializer().get()).stream().findFirst().orElseThrow().method;
+        if (input.getStaticInitializer().isPresent()) {
+            var init = this.convert(input, input.getStaticInitializer().get()).stream().findFirst().orElseThrow();
+            staticConstructor = this.convert(init, init.generics.javaGenerics);
+        }
 
         if (input instanceof Record)
             return new TargetRecord(input.getModifiers(), input.getClassName(), javaGenerics, txGenerics, superInterfaces, constructors, staticConstructor, fields, methods);
@@ -390,11 +381,16 @@ public class ASTToTargetAST {
         else return new TargetClass(input.getModifiers(), input.getClassName(), convert(input.getSuperClass(), generics.javaGenerics), javaGenerics, txGenerics, superInterfaces, constructors, staticConstructor, fields, methods);
     }
 
-    public List<MethodParameter> convert(ParameterList input, GenerateGenerics generics) {
+    @Deprecated
+    public List<MethodParameter> convert(ParameterList input) {
+        return convert(input, all.getFirst().javaGenerics);
+    }
+
+    public List<MethodParameter> convert(ParameterList input, IGenerics generics) {
         var res = new ArrayList<MethodParameter>();
         for (var i = 0; i < input.getFormalparalist().size(); i++) {
             var param = input.getFormalparalist().get(i);
-            var pattern = (TargetPattern) convert(param);
+            var pattern = (TargetPattern) convert(param, generics);
             if (pattern instanceof TargetComplexPattern) pattern = pattern.withName("__var" + i);
             res.add(new MethodParameter(pattern));
         }
@@ -405,7 +401,7 @@ public class ASTToTargetAST {
         return generics.stream().anyMatch(g -> g.name().equals(type.getParsedName()));
     }
 
-    private Set<TargetGeneric> collectMethodGenerics(ClassOrInterface clazz, GenerateGenerics generateGenerics, Set<GenerateGenerics.Pair> generics, Method input) {
+    private Set<TargetGeneric> collectMethodGenerics(ClassOrInterface clazz, IGenerics generateGenerics, Set<GenerateGenerics.Pair> generics, Method input) {
         var convertedGenerics = new HashSet<>(convert(generics, generateGenerics));
         outer: for (GenericTypeVar typeVar : input.getGenerics()) {
             for (var classGeneric : clazz.getGenerics()) {
@@ -423,7 +419,7 @@ public class ASTToTargetAST {
         return convertedGenerics;
     }
 
-    private List<TargetConstructor> convert(ClassOrInterface currentClass, Constructor input, TargetBlock fieldInitializer) {
+    private List<TargetConstructor> convert(ClassOrInterface currentClass, Constructor input, TargetBlock fieldInitializer, Generics generics) {
         generics = all.get(0);
         List<TargetConstructor> result = new ArrayList<>();
         Set<List<MethodParameter>> parameterSet = new HashSet<>();
@@ -431,15 +427,15 @@ public class ASTToTargetAST {
 
         for (var s : all) {
             generics = s;
-            var javaGenerics = this.generics.javaGenerics.generics(currentClass, input);
-            var txGenerics = this.generics.txGenerics.generics(currentClass, input);
-            List<MethodParameter> params = convert(input.getParameterList(), this.generics.javaGenerics);
+            var javaGenerics = generics.javaGenerics.generics(currentClass, input);
+            var txGenerics = generics.txGenerics.generics(currentClass, input);
+            List<MethodParameter> params = convert(input.getParameterList(), generics.javaGenerics);
             if (parameterSet.stream().noneMatch(p -> p.equals(params))) {
-                List<MethodParameter> txParams = convert(input.getParameterList(), this.generics.txGenerics);
+                List<MethodParameter> txParams = convert(input.getParameterList(), generics.txGenerics);
                 var javaMethodGenerics = collectMethodGenerics(currentClass, generics.javaGenerics(), javaGenerics, input);
                 var txMethodGenerics = collectMethodGenerics(currentClass, generics.txGenerics(), txGenerics, input);
 
-                result.add(new TargetConstructor(input.modifier, javaMethodGenerics, txMethodGenerics, params, txParams, convert(input.block), fieldInitializer));
+                result.add(new TargetConstructor(input.modifier, javaMethodGenerics, txMethodGenerics, params, txParams, convert(input.block, generics.javaGenerics), fieldInitializer));
                 parameterSet.add(params);
             }
         }
@@ -447,10 +443,13 @@ public class ASTToTargetAST {
         return result;
     }
 
+    private static int counter = 0;
     private String encodeName(String name, TargetMethod.Signature params) {
         var res = new StringBuilder();
         res.append(name);
         res.append('$');
+        res.append(counter++);
+        res.append('$');
         for (var param : params.parameters()) {
             encodeName(param.pattern(), res);
         }
@@ -526,12 +525,14 @@ public class ASTToTargetAST {
                 var j = 0;
                 for (var param : m.signature().parameters()) {
                     if (j >= patternsRec.size()) return true;
-                    if (!patternsRec.get(j).type().equals(param.pattern().type())) return false;
+                    if (!patternsRec.get(j).equals(param.pattern())) return false;
                     j++;
                 }
                 return true;
             }).toList();
 
+            //System.out.println(offset + " -> " + lastPattern);
+            //candidates.forEach(m -> System.out.println(m.getSignature()));
             var caseBody = generatePatternOverloadsRec(offset + 1, expr, params, patternsRec, candidates, classType);
             var body = new TargetBlock(List.of(caseBody));
             var case_ = new TargetSwitch.Case(List.of(lastPattern), body);
@@ -542,19 +543,14 @@ public class ASTToTargetAST {
         return new TargetSwitch(switchExpr, cases, null, true);
     }
 
-    private List<TargetMethod> generatePatternOverloads(ClassOrInterface clazz, List<TargetMethod> overloadedMethods) {
-        if (overloadedMethods.size() <= 1) return overloadedMethods;
+    private List<TargetMethod> generatePatternOverloads(ClassOrInterface clazz, List<MethodWithTphs> overloadedMethods) {
+        if (overloadedMethods.isEmpty()) return List.of();
         // Check if we have a pattern as a parameter
-        var firstMethod = overloadedMethods.getFirst();
-        var secondMethod = overloadedMethods.get(1);
-        if (firstMethod.signature().parameters().stream().noneMatch(mp -> mp.pattern() instanceof TargetComplexPattern)) return overloadedMethods;
-        // Rename existing methods
-
-        var res = new ArrayList<TargetMethod>();
-        for (var method : overloadedMethods) {
-            var name = encodeName(method.name(), method.signature());
-            res.add(new TargetMethod(method.access(), name, method.block(), method.signature(), method.txSignature()));
-        }
+        var firstMethod = convert(overloadedMethods.getFirst(), overloadedMethods.getFirst().generics.javaGenerics);
+        if (overloadedMethods.size() == 1) return List.of(firstMethod);
+        var secondMethod = convert(overloadedMethods.get(1), overloadedMethods.get(1).generics.javaGenerics);
+        if (firstMethod.signature().parameters().stream().noneMatch(mp -> mp.pattern() instanceof TargetComplexPattern))
+            return overloadedMethods.stream().map(m -> convert(m, m.generics.javaGenerics)).toList();
 
         var signatureParams = new ArrayList<MethodParameter>();
         for (var i = 0; i < firstMethod.signature().parameters().size(); i++) {
@@ -563,7 +559,7 @@ public class ASTToTargetAST {
             var t2 = secondMethod.signature().parameters().get(i).pattern().type();
             var commonSubTypes = new HashSet<>(commonSuperInterfaceTypes(t1, t2));
             for (var m : overloadedMethods.subList(2, overloadedMethods.size())) {
-                var t3 = m.signature().parameters().get(i).pattern().type();
+                var t3 = m.signature().java.parameters().get(i).pattern().type();
                 commonSubTypes.retainAll(commonSuperInterfaceTypes(t1, t3));
             }
             if (commonSubTypes.size() > 1) throw new DebugException("Invalid overload");
@@ -578,9 +574,28 @@ public class ASTToTargetAST {
             signatureParams.add(new MethodParameter(new TargetRefType(superType.getClassName().toString()), name));
         }
 
+        // Rename existing methods
+
+        var res = new ArrayList<TargetMethod>();
+        for (var method : overloadedMethods) {
+            var name = encodeName(method.method.name, method.signature.java);
+
+            var generics = new OverlayGenerics(method.generics.javaGenerics, this);
+            var m = overloadedMethods.getFirst();
+            var params = m.method.getParameterList().getFormalparalist();
+            for (var i = 0; i < params.size(); i++) {
+                var param = params.get(i);
+                if (param.getType() instanceof TypePlaceholder tph) {
+                    generics.addOverlay(tph, signatureParams.get(i).pattern().type());
+                }
+            }
+            var tMethod = convert(method, generics);
+            res.add(new TargetMethod(tMethod.access(), name, tMethod.block(), tMethod.signature(), tMethod.txSignature()));
+        }
+
         var commonSubTypes = new HashSet<>(commonSuperInterfaceTypes(firstMethod.signature().returnType(), secondMethod.signature().returnType()));
         for (var m : overloadedMethods.subList(2, overloadedMethods.size())) {
-            commonSubTypes.retainAll(commonSuperInterfaceTypes(firstMethod.signature().returnType(), m.signature().returnType()));
+            commonSubTypes.retainAll(commonSuperInterfaceTypes(firstMethod.signature().returnType(), m.signature().java.returnType()));
         }
         var returnType = commonSubTypes.isEmpty() ? TargetType.Object : new TargetRefType(commonSubTypes.iterator().next().getClassName().toString());
 
@@ -601,7 +616,7 @@ public class ASTToTargetAST {
     }
 
     private Expression makeRecordSwitch(RefTypeOrTPHOrWildcardOrGeneric returnType, ParameterList params, List<Method> overloadedMethods) {
-        var param = params.getFormalparalist().get(0);
+        var param = params.getFormalparalist().getFirst();
         assert param instanceof RecordPattern; // TODO
 
         var cases = new ArrayList<SwitchBlock>();
@@ -621,7 +636,7 @@ public class ASTToTargetAST {
         return swtch;
     }
 
-    private Optional<Method> findSuperMethodToOverride(ClassOrInterface currentClass, String name, List<MethodParameter> params) {
+    private Optional<Method> findSuperMethodToOverride(ClassOrInterface currentClass, String name, List<MethodParameter> params, IGenerics generics) {
         var superClass = compiler.getClass(currentClass.getSuperClass().getName());
         var methodStream = superClass.getMethods().stream();
         for (var superInterface : currentClass.getSuperInterfaces()) {
@@ -634,115 +649,106 @@ public class ASTToTargetAST {
             if (sParams.getFormalparalist().size() != params.size()) return false;
             for (var i = 0; i < params.size(); i++) {
                 var a = TargetType.toPrimitive(params.get(i).pattern().type());
-                var b = convert(sParams.getFormalparalist().get(i).getType());
+                var b = convert(sParams.getFormalparalist().get(i).getType(), generics);
                 if (!Objects.equals(a, b)) return false;
             }
             return true;
         }).findFirst();
     }
 
-    record MethodWithTphs(TargetMethod method, Generics generics, List<SignaturePairTarget> args) {
+    record MethodWithTphs(Method method, Generics generics, Signature signature) {
         @Override
         public boolean equals(Object o) {
             if (this == o) return true;
             if (!(o instanceof MethodWithTphs that)) return false;
-            return Objects.equals(method, that.method) && Objects.equals(args, that.args);
+            return Objects.equals(method, that.method) && Objects.equals(signature, that.signature);
         }
 
         @Override
         public int hashCode() {
-            return Objects.hash(method, args);
+            return Objects.hash(method, signature);
         }
     }
 
+    private TargetMethod convert(MethodWithTphs mtph, IGenerics generics) {
+        return new TargetMethod(mtph.method.modifier, mtph.method.name, convert(mtph.method.block, generics), mtph.signature.java(), mtph.signature.tx());
+    }
+
     record Signature(TargetMethod.Signature java, TargetMethod.Signature tx, Generics generics) {}
 
     private List<MethodWithTphs> convert(ClassOrInterface currentClass, Method method) {
-        generics = all.getFirst();
         List<MethodWithTphs> result = new ArrayList<>();
         this.currentMethod = method;
 
         List<Signature> signatures = new ArrayList<>();
-        HashMap<TargetMethod.Signature, List<Generics>> collectedGenerics = new HashMap<>();
-
-        for (var s : all) {
-            generics = s;
-            var javaGenerics = this.generics.javaGenerics.generics(currentClass, method);
-            var txGenerics = this.generics.txGenerics.generics(currentClass, method);
-            List<MethodParameter> params = convert(method.getParameterList(), this.generics.javaGenerics);
-            var returnType = convert(method.getReturnType(), this.generics.javaGenerics);
-            var superMethod = findSuperMethodToOverride(currentClass, method.getName(), params);
+        for (var generics : all) {
+            var javaGenerics = generics.javaGenerics.generics(currentClass, method);
+            var txGenerics = generics.txGenerics.generics(currentClass, method);
+            List<MethodParameter> params = convert(method.getParameterList(), generics.javaGenerics);
+            var returnType = convert(method.getReturnType(), generics.javaGenerics);
+            var superMethod = findSuperMethodToOverride(currentClass, method.getName(), params, generics.javaGenerics);
             if (superMethod.isPresent()) {
                 // If we find a super method to override, use its parameters and return types
-                var newReturnType = convert(superMethod.get().getReturnType(), this.generics.javaGenerics);
+                var newReturnType = convert(superMethod.get().getReturnType(), generics.javaGenerics);
                 if (newReturnType instanceof TargetPrimitiveType && TargetType.toPrimitive(returnType).equals(newReturnType)) {
                     returnType = newReturnType;
-                    params = convert(superMethod.get().getParameterList(), method.getParameterList(), this.generics.javaGenerics);
+                    params = convert(superMethod.get().getParameterList(), method.getParameterList(), generics.javaGenerics);
                 }
             }
 
-            List<MethodParameter> txParams = convert(method.getParameterList(), this.generics.txGenerics);
+            List<MethodParameter> txParams = convert(method.getParameterList(), generics.txGenerics);
 
             var javaMethodGenerics = collectMethodGenerics(currentClass, generics.javaGenerics(), javaGenerics, method);
             var txMethodGenerics = collectMethodGenerics(currentClass, generics.txGenerics(), txGenerics, method);
 
             var javaSignature = new TargetMethod.Signature(javaMethodGenerics, params, returnType);
-            var txSignature = new TargetMethod.Signature(txMethodGenerics, txParams, convert(method.getReturnType(), this.generics.txGenerics));
+            var txSignature = new TargetMethod.Signature(txMethodGenerics, txParams, convert(method.getReturnType(), generics.txGenerics));
 
             signatures.add(new Signature(javaSignature, txSignature, generics));
-            var listOfGenerics = collectedGenerics.getOrDefault(javaSignature, new ArrayList<>());
-            listOfGenerics.add(generics);
-            collectedGenerics.put(javaSignature, listOfGenerics);
         }
 
         for (var signature : signatures) {
-            generics = signature.generics;
-            currentMethodOverloads = collectedGenerics.get(signature.java);
-
-            var newMethod = new TargetMethod(method.modifier, method.name, convert(method.block), signature.java, signature.tx);
-            var concreteParams = tphsInMethods.getOrDefault(method, new HashSet<>()).stream().map(sig -> new SignaturePairTarget(convert(sig.signature), convert(sig.parameter))).toList();
-
-            result.add(new MethodWithTphs(newMethod, generics, concreteParams));
+            result.add(new MethodWithTphs(method, signature.generics, signature));
         }
 
         return result;
     }
 
-    private List<MethodParameter> convert(ParameterList superList, ParameterList paraList, JavaGenerics generics) {
+    private List<MethodParameter> convert(ParameterList superList, ParameterList paraList, IGenerics generics) {
         var list = new ArrayList<MethodParameter>();
         for (var i = 0; i < paraList.getFormalparalist().size(); i++) {
             var param = paraList.getParameterAt(i);
-            var pattern = (TargetPattern) convert(param);
+            var pattern = (TargetPattern) convert(param, generics);
             if (pattern instanceof TargetComplexPattern) pattern = pattern.withName("__var" + i);
             list.add(new MethodParameter(pattern).withType(convert(superList.getParameterAt(i).getType(), generics)));
         }
         return list;
     }
 
-    protected TargetSwitch.Case convert(SwitchBlock block) {
-        return new TargetSwitch.Case(block.getLabels().stream().map(this::convert).toList(), convert((Block) block), block.isExpression);
+    protected TargetSwitch.Case convert(SwitchBlock block, IGenerics generics) {
+        return new TargetSwitch.Case(block.getLabels().stream().map(s -> convert(s, generics)).toList(), convert((Block) block, generics), block.isExpression);
     }
 
-    protected TargetBlock convert(Block block) {
+    protected TargetBlock convert(Block block, IGenerics generics) {
         if (block == null) return null;
-        return new TargetBlock(block.statements.stream().map(this::convert).toList());
+        return new TargetBlock(block.statements.stream().map(s -> convert(s, generics)).toList());
     }
 
-    protected TargetBlock convertWrapInBlock(Expression expression) {
-        var res = convert(expression);
+    protected TargetBlock convertWrapInBlock(Expression expression, IGenerics generics) {
+        var res = convert(expression, generics);
         if (!(res instanceof TargetBlock))
             return new TargetBlock(List.of(res));
         return (TargetBlock) res;
     }
 
-    protected TargetExpression convert(Expression expr) {
-        var converter = new StatementToTargetExpression(this);
+    protected TargetExpression convert(Expression expr, IGenerics generics) {
+        var converter = new StatementToTargetExpression(this, generics);
         expr.accept(converter);
         return converter.result;
     }
 
-    private TargetField convert(Field input) {
-        return new TargetField(input.modifier, convert(input.getType(), generics.javaGenerics), input.getName());
+    private TargetField convert(Field input, IGenerics generics) {
+        return new TargetField(input.modifier, convert(input.getType(), generics), input.getName());
     }
 
     private final Map<String, FunNGenerator.GenericParameters> usedFunN = new HashMap<>();
@@ -750,9 +756,6 @@ public class ASTToTargetAST {
 
     public Map<String, byte[]> auxiliaries = new HashMap<>();
 
-    public TargetType convert(RefTypeOrTPHOrWildcardOrGeneric input) {
-        return convert(input, generics.javaGenerics);
-    }
 
     private static void collectArguments(TargetSpecializedType tspec, List<TargetType> newParams) {
         for (var i = 0; i < tspec.params().size(); i++) {
@@ -831,7 +834,13 @@ public class ASTToTargetAST {
         }
     }
 
-    protected TargetType convert(RefTypeOrTPHOrWildcardOrGeneric input, GenerateGenerics generics) {
+    // FIXME This method shouldn't be used
+    @Deprecated
+    public TargetType convert(RefTypeOrTPHOrWildcardOrGeneric input) {
+        return convert(input, all.getFirst().javaGenerics);
+    }
+
+    public TargetType convert(RefTypeOrTPHOrWildcardOrGeneric input, IGenerics generics) {
         return input.acceptTV(new TypeVisitor<>() {
             @Override
             public TargetType visit(RefType refType) {

src/main/java/de/dhbwstuttgart/target/generate/GenerateGenerics.java

@@ -16,7 +16,7 @@ import java.util.*;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-public abstract class GenerateGenerics {
+public abstract class GenerateGenerics implements IGenerics {
 
     private final ASTToTargetAST astToTargetAST;
 
@@ -151,22 +151,6 @@ public abstract class GenerateGenerics {
         System.out.println("Simplified constraints: " + simplifiedConstraints);
     }
 
-    /*public record GenericsState(Map<TPH, RefTypeOrTPHOrWildcardOrGeneric> concreteTypes, Map<TypePlaceholder, TypePlaceholder> equality) {}
-
-    public GenericsState store() {
-        return new GenericsState(new HashMap<>(concreteTypes), new HashMap<>(equality));
-    }
-
-    public void restore(GenericsState state) {
-        this.concreteTypes = state.concreteTypes;
-        this.equality = state.equality;
-    }
-
-    public void addOverlay(TypePlaceholder from, RefTypeOrTPHOrWildcardOrGeneric to) {
-        if (to instanceof TypePlaceholder t) equality.put(from, t);
-        else if (to instanceof RefType t) concreteTypes.put(new TPH(from), t);
-    }*/
-
     Set<TPH> findTypeVariables(ParameterList params) {
         var res = new HashSet<TPH>();
         for (var param : params.getFormalparalist()) {
@@ -282,6 +266,7 @@ public abstract class GenerateGenerics {
             Set<Pair> result
     ) {
         var userDefinedGenericsOfClass = astToTargetAST.userDefinedGenerics.get(owner);
+        var generics = this;
 
         // Type variables with bounds that are also type variables of the method
         for (var typeVariable : new HashSet<>(typeVariables)) {
@@ -329,7 +314,7 @@ public abstract class GenerateGenerics {
 
                     if (methodCall.receiver instanceof ExpressionReceiver expressionReceiver) {
                         if (expressionReceiver.expr instanceof This) {
-                            var optMethod = astToTargetAST.findMethod(owner, methodCall.name, methodCall.signatureArguments().stream().map(astToTargetAST::convert).toList());
+                            var optMethod = astToTargetAST.findMethod(owner, methodCall.name, methodCall.signatureArguments().stream().map(sa -> astToTargetAST.convert(sa, generics)).toList());
                             if (optMethod.isEmpty()) return;
                             var method2 = optMethod.get();
                             System.out.println("In: " + method.getName() + " Method: " + method2.getName());
@@ -539,8 +524,6 @@ public abstract class GenerateGenerics {
             });
     }
 
-    abstract void generics(ClassOrInterface owner, Method method, Set<Pair> result, Set<TPH> javaTypeVariablesOfClass);
-
     Set<Pair> family(ClassOrInterface owner, Method method) {
         Set<Pair> result = new HashSet<>();
         if (familyOfMethods.containsKey(method))
@@ -564,7 +547,8 @@ public abstract class GenerateGenerics {
         return result;
     }
 
-    Set<Pair> generics(ClassOrInterface owner, Method method) {
+    @Override
+    public Set<Pair> generics(ClassOrInterface owner, Method method) {
         if (computedGenericsOfMethods.containsKey(method)) {
             var cached = computedGenericsOfMethods.get(method);
             System.out.println("Cached " + method.getName() + ": " + cached);
@@ -652,8 +636,10 @@ public abstract class GenerateGenerics {
     }
 
     abstract void generics(ClassOrInterface classOrInterface, Set<Pair> result, Set<TPH> referenced);
+    abstract void generics(ClassOrInterface owner, Method method, Set<Pair> result, Set<TPH> referenced);
 
-    Set<Pair> generics(ClassOrInterface classOrInterface) {
+    @Override
+    public Set<Pair> generics(ClassOrInterface classOrInterface) {
         if (computedGenericsOfClasses.containsKey(classOrInterface))
             return computedGenericsOfClasses.get(classOrInterface);
 
@@ -988,7 +974,13 @@ public abstract class GenerateGenerics {
         } while (foundInfima);
     }
 
-    RefTypeOrTPHOrWildcardOrGeneric getType(RefTypeOrTPHOrWildcardOrGeneric type) {
+    @Override
+    public TypePlaceholder getEqualType(TypePlaceholder tph) {
+        return this.equality.getOrDefault(tph, tph);
+    }
+
+    @Override
+    public RefTypeOrTPHOrWildcardOrGeneric getType(RefTypeOrTPHOrWildcardOrGeneric type) {
         if (type instanceof TypePlaceholder tph) {
             if (equality.containsKey(tph)) {
                 return getType(equality.get(tph));
@@ -998,7 +990,8 @@ public abstract class GenerateGenerics {
         return type;
     }
 
-    TargetType getTargetType(RefTypeOrTPHOrWildcardOrGeneric in) {
+    @Override
+    public TargetType getTargetType(RefTypeOrTPHOrWildcardOrGeneric in) {
         if (in instanceof TypePlaceholder tph) {
             if (equality.containsKey(tph)) {
                 return getTargetType(equality.get(tph));

src/main/java/de/dhbwstuttgart/target/generate/GenericsResult.java

@@ -9,21 +9,20 @@ import de.dhbwstuttgart.target.tree.type.TargetType;
 import java.util.*;
 
 public class GenericsResult {
-    private final GenerateGenerics generics;
+    private final IGenerics generics;
 
-    GenericsResult(GenerateGenerics generics) {
+    GenericsResult(IGenerics generics) {
         this.generics = generics;
     }
 
     public GenericsResultSet get(ClassOrInterface clazz) {
-        var generics = this.generics.computedGenericsOfClasses.get(clazz);
-        return new GenericsResultSet(generics, this.generics.equality);
+        var generics = this.generics.generics(clazz);
+        return new GenericsResultSet(generics, this.generics);
     }
 
-    // TODO Compute generics if not present?
-    public GenericsResultSet get(Method method) {
-        var generics = this.generics.computedGenericsOfMethods.get(method);
-        return new GenericsResultSet(generics, this.generics.equality);
+    public GenericsResultSet get(ClassOrInterface clazz, Method method) {
+        var generics = this.generics.generics(clazz, method);
+        return new GenericsResultSet(generics, this.generics);
     }
 
     public BoundsList getBounds(RefTypeOrTPHOrWildcardOrGeneric type, ClassOrInterface clazz) {
@@ -34,7 +33,7 @@ public class GenericsResult {
         var resolvedType = resolve(type);
         type = resolvedType;
         if (type instanceof TypePlaceholder) {
-            var methodGenerics = get(method);
+            var methodGenerics = get(clazz, method);
             var classGenerics = get(clazz);
             List<Bound> result = new ArrayList<>();
 

src/main/java/de/dhbwstuttgart/target/generate/GenericsResultSet.java

@@ -4,17 +4,18 @@ import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
 import de.dhbwstuttgart.typeinference.result.PairTPHequalRefTypeOrWildcardType;
 import de.dhbwstuttgart.typeinference.result.PairTPHsmallerTPH;
 import de.dhbwstuttgart.typeinference.result.ResultPair;
+import org.antlr.v4.codegen.model.decl.ContextRuleListIndexedGetterDecl;
 
 import java.util.*;
 
 public class GenericsResultSet extends AbstractSet<GenerateGenerics.Pair> {
 
     final Set<GenerateGenerics.Pair> backing;
-    final Map<TypePlaceholder, TypePlaceholder> equality;
+    final IGenerics generics;
 
-    public GenericsResultSet(Set<GenerateGenerics.Pair> backing, Map<TypePlaceholder, TypePlaceholder> equality) {
+    public GenericsResultSet(Set<GenerateGenerics.Pair> backing, IGenerics generics) {
         this.backing = backing == null ? new HashSet<>() : new HashSet<>(backing);
-        this.equality = equality;
+        this.generics = generics;
     }
 
     @Override
@@ -28,7 +29,7 @@ public class GenericsResultSet extends AbstractSet<GenerateGenerics.Pair> {
     }
 
     public Optional<ResultPair<?, ?>> getResultPairFor(TypePlaceholder tph) {
-        var tph2 = equality.getOrDefault(tph, tph);
+        var tph2 = generics.getEqualType(tph);
         return this.stream().filter(pair -> {
             return pair.left.resolve().equals(tph2);
         }).findFirst().map(pair -> {

src/main/java/de/dhbwstuttgart/target/generate/IGenerics.java

@@ -0,0 +1,22 @@
+package de.dhbwstuttgart.target.generate;
+
+import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
+import de.dhbwstuttgart.syntaxtree.Method;
+import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
+import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+import java.util.Set;
+
+public interface IGenerics {
+
+    Set<GenerateGenerics.Pair> generics(ClassOrInterface classOrInterface);
+
+    Set<GenerateGenerics.Pair> generics(ClassOrInterface owner, Method method);
+
+    RefTypeOrTPHOrWildcardOrGeneric getType(RefTypeOrTPHOrWildcardOrGeneric type);
+
+    TypePlaceholder getEqualType(TypePlaceholder tph);
+
+    TargetType getTargetType(RefTypeOrTPHOrWildcardOrGeneric in);
+}

src/main/java/de/dhbwstuttgart/target/generate/OverlayGenerics.java

@@ -0,0 +1,60 @@
+package de.dhbwstuttgart.target.generate;
+
+import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
+import de.dhbwstuttgart.syntaxtree.Method;
+import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
+import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
+import de.dhbwstuttgart.target.tree.type.TargetGenericType;
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+public class OverlayGenerics implements IGenerics {
+    private final IGenerics wrapped;
+    private final ASTToTargetAST converter;
+    private final Map<TypePlaceholder, TargetType> overlay;
+
+    public OverlayGenerics(IGenerics wrapped, ASTToTargetAST converter) {
+        this.wrapped = wrapped;
+        this.converter = converter;
+        this.overlay = new HashMap<>();
+    }
+
+    public void addOverlay(TypePlaceholder tph, TargetType type) {
+        this.overlay.put(tph, type);
+    }
+
+    @Override
+    public Set<GenerateGenerics.Pair> generics(ClassOrInterface classOrInterface) {
+        return wrapped.generics(classOrInterface);
+    }
+
+    @Override
+    public Set<GenerateGenerics.Pair> generics(ClassOrInterface owner, Method method) {
+        return wrapped.generics(owner, method);
+    }
+
+    @Override
+    public RefTypeOrTPHOrWildcardOrGeneric getType(RefTypeOrTPHOrWildcardOrGeneric type) {
+        return wrapped.getType(type);
+    }
+
+    @Override
+    public TypePlaceholder getEqualType(TypePlaceholder tph) {
+        return wrapped.getEqualType(tph);
+    }
+
+    @Override
+    public TargetType getTargetType(RefTypeOrTPHOrWildcardOrGeneric in) {
+        if (in instanceof TypePlaceholder tph) {
+            var overlay = this.overlay.get(tph);
+            if (overlay != null) return overlay;
+            var type = getType(tph);
+            if (type == null) return new TargetGenericType(tph.getName());
+            return wrapped.getTargetType(type);
+        }
+        return converter.convert(in, this);
+    }
+}

src/main/java/de/dhbwstuttgart/target/generate/StatementToTargetExpression.java

@@ -21,11 +21,13 @@ import java.util.stream.StreamSupport;
 
 public class StatementToTargetExpression implements ASTVisitor {
 
-    public StatementToTargetExpression(ASTToTargetAST converter) {
+    public StatementToTargetExpression(ASTToTargetAST converter, IGenerics generics) {
         this.converter = converter;
+        this.generics = generics;
     }
 
     public TargetExpression result;
+    private final IGenerics generics;
     private final ASTToTargetAST converter;
 
     @Override
@@ -64,7 +66,7 @@ public class StatementToTargetExpression implements ASTVisitor {
         @Override
         public void visit(LocalVar localVar) {
             super.visit(localVar);
-            var capture = new MethodParameter(new TargetTypePattern(converter.convert(localVar.getType()), localVar.name));
+            var capture = new MethodParameter(new TargetTypePattern(converter.convert(localVar.getType(), generics), localVar.name));
             if (!hasLocalVar(localVar.name) && !parameters.contains(capture) && !captures.contains(capture))
                 captures.add(capture);
         }
@@ -88,7 +90,7 @@ public class StatementToTargetExpression implements ASTVisitor {
     private List<MethodParameter> createParameters(LambdaExpression lambda) {
         return StreamSupport.stream(lambda.params.spliterator(), false)
             .map(p -> (FormalParameter) p)
-            .map(p -> new MethodParameter(new TargetTypePattern(converter.convert(p.getType()), p.getName())))
+            .map(p -> new MethodParameter(new TargetTypePattern(converter.convert(p.getType(), generics), p.getName())))
             .toList();
     }
 
@@ -99,59 +101,59 @@ public class StatementToTargetExpression implements ASTVisitor {
         var visitor = new LambdaCaptureFinder(parameters, captures);
         lambdaExpression.methodBody.accept(visitor);
 
-        TargetMethod.Signature signature = new TargetMethod.Signature(Set.of(), parameters, converter.convert(lambdaExpression.getReturnType()));;
-        var tpe = converter.convert(lambdaExpression.getType());
-        result = new TargetLambdaExpression(tpe, captures, signature, converter.convert(lambdaExpression.methodBody));
+        TargetMethod.Signature signature = new TargetMethod.Signature(Set.of(), parameters, converter.convert(lambdaExpression.getReturnType(), generics));;
+        var tpe = converter.convert(lambdaExpression.getType(), generics);
+        result = new TargetLambdaExpression(tpe, captures, signature, converter.convert(lambdaExpression.methodBody, this.generics));
     }
 
     @Override
     public void visit(Assign assign) {
         TargetExpression left;
         if (assign.lefSide instanceof AssignToLocal) {
-            left = converter.convert(((AssignToLocal) assign.lefSide).localVar);
+            left = converter.convert(((AssignToLocal) assign.lefSide).localVar, this.generics);
         } else {
-            left = converter.convert(((AssignToField) assign.lefSide).field);
+            left = converter.convert(((AssignToField) assign.lefSide).field, this.generics);
         }
 
-        result = new TargetAssign(converter.convert(assign.getType()), left, converter.convert(assign.rightSide));
+        result = new TargetAssign(converter.convert(assign.getType(), generics), left, converter.convert(assign.rightSide, this.generics));
     }
 
     @Override
     public void visit(BinaryExpr binary) {
         result = switch (binary.operation) {
-        case ADD -> new TargetBinaryOp.Add(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case SUB -> new TargetBinaryOp.Sub(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case MUL -> new TargetBinaryOp.Mul(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case MOD -> new TargetBinaryOp.Rem(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case AND -> new TargetBinaryOp.BAnd(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case OR -> new TargetBinaryOp.BOr(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case XOR -> new TargetBinaryOp.XOr(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case DIV -> new TargetBinaryOp.Div(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case LESSTHAN -> new TargetBinaryOp.Less(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case BIGGERTHAN -> new TargetBinaryOp.Greater(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case LESSEQUAL -> new TargetBinaryOp.LessOrEqual(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case BIGGEREQUAL -> new TargetBinaryOp.GreaterOrEqual(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case EQUAL -> new TargetBinaryOp.Equal(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
-        case NOTEQUAL -> new TargetBinaryOp.NotEqual(converter.convert(binary.getType()), converter.convert(binary.lexpr), converter.convert(binary.rexpr));
+        case ADD -> new TargetBinaryOp.Add(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case SUB -> new TargetBinaryOp.Sub(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case MUL -> new TargetBinaryOp.Mul(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case MOD -> new TargetBinaryOp.Rem(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case AND -> new TargetBinaryOp.BAnd(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case OR -> new TargetBinaryOp.BOr(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case XOR -> new TargetBinaryOp.XOr(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case DIV -> new TargetBinaryOp.Div(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case LESSTHAN -> new TargetBinaryOp.Less(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case BIGGERTHAN -> new TargetBinaryOp.Greater(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case LESSEQUAL -> new TargetBinaryOp.LessOrEqual(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case BIGGEREQUAL -> new TargetBinaryOp.GreaterOrEqual(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case EQUAL -> new TargetBinaryOp.Equal(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
+        case NOTEQUAL -> new TargetBinaryOp.NotEqual(converter.convert(binary.getType(), generics), converter.convert(binary.lexpr, this.generics), converter.convert(binary.rexpr, this.generics));
         };
     }
 
     @Override
     public void visit(BoolExpression bool) {
         result = switch(bool.operation) {
-        case OR -> new TargetBinaryOp.Or(converter.convert(bool.getType()), converter.convert(bool.lexpr), converter.convert(bool.rexpr));
-        case AND -> new TargetBinaryOp.And(converter.convert(bool.getType()), converter.convert(bool.lexpr), converter.convert(bool.rexpr));
+        case OR -> new TargetBinaryOp.Or(converter.convert(bool.getType(), generics), converter.convert(bool.lexpr, generics), converter.convert(bool.rexpr, generics));
+        case AND -> new TargetBinaryOp.And(converter.convert(bool.getType(), generics), converter.convert(bool.lexpr, generics), converter.convert(bool.rexpr, generics));
         };
     }
 
     @Override
     public void visit(Block block) {
-        result = converter.convert(block);
+        result = converter.convert(block, generics);
     }
 
     @Override
     public void visit(CastExpr castExpr) {
-        result = new TargetCast(converter.convert(castExpr.getType()), converter.convert(castExpr.expr));
+        result = new TargetCast(converter.convert(castExpr.getType(), generics), converter.convert(castExpr.expr, generics));
     }
 
     @Override
@@ -162,46 +164,46 @@ public class StatementToTargetExpression implements ASTVisitor {
     @Override
     public void visit(FieldVar fieldVar) {
         var isStatic = false;
-        var type = converter.convert(fieldVar.receiver.getType());
+        var type = converter.convert(fieldVar.receiver.getType(), generics);
         var clazz = converter.compiler.getClass(new JavaClassName(type.name()));
         var field = clazz.getField(fieldVar.fieldVarName).orElseThrow();
-        result = new TargetFieldVar(converter.convert(fieldVar.getType()), type, Modifier.isStatic(field.modifier), converter.convert(fieldVar.receiver), fieldVar.fieldVarName);
+        result = new TargetFieldVar(converter.convert(fieldVar.getType(), generics), type, Modifier.isStatic(field.modifier), converter.convert(fieldVar.receiver, this.generics), fieldVar.fieldVarName);
     }
 
     @Override
     public void visit(ForStmt forStmt) {
         result = new TargetFor(
-                forStmt.initializer.stream().map(converter::convert).toList(),
-                forStmt.condition != null ? converter.convert(forStmt.condition) : null,
-                forStmt.loopExpr.stream().map(converter::convert).toList(),
-                converter.convertWrapInBlock(forStmt.block)
+                forStmt.initializer.stream().map(c -> converter.convert(c, generics)).toList(),
+                forStmt.condition != null ? converter.convert(forStmt.condition, generics) : null,
+                forStmt.loopExpr.stream().map(e -> converter.convert(e, generics)).toList(),
+                converter.convertWrapInBlock(forStmt.block, generics)
         );
     }
 
     @Override
     public void visit(ForEachStmt forEachStmt) {
-        result = new TargetForEach(converter.convert(forEachStmt.statement), converter.convert(forEachStmt.expression), converter.convertWrapInBlock(forEachStmt.block));
+        result = new TargetForEach(converter.convert(forEachStmt.statement, generics), converter.convert(forEachStmt.expression, generics), converter.convertWrapInBlock(forEachStmt.block, generics));
     }
 
     @Override
     public void visit(IfStmt ifStmt) {
-        result = new TargetIf(converter.convert(ifStmt.expr), converter.convertWrapInBlock(ifStmt.then_block), ifStmt.else_block != null ? converter.convertWrapInBlock(ifStmt.else_block) : null);
+        result = new TargetIf(converter.convert(ifStmt.expr, generics), converter.convertWrapInBlock(ifStmt.then_block, generics), ifStmt.else_block != null ? converter.convertWrapInBlock(ifStmt.else_block, generics) : null);
     }
 
     @Override
     public void visit(InstanceOf instanceOf) {
-        result = new TargetInstanceOf(converter.convert(instanceOf.getExpression()), converter.convert(instanceOf.getPattern()));
+        result = new TargetInstanceOf(converter.convert(instanceOf.getExpression(), generics), converter.convert(instanceOf.getPattern(), this.generics));
     }
 
     @Override
     public void visit(LocalVar localVar) {
-        result = new TargetLocalVar(converter.convert(localVar.getType()), localVar.name);
+        result = new TargetLocalVar(converter.convert(localVar.getType(), generics), localVar.name);
     }
 
     @Override
     public void visit(LocalVarDecl localVarDecl) {
         // TODO No value, is this correct?
-        result = new TargetVarDecl(converter.convert(localVarDecl.getType()), localVarDecl.getName(), null);
+        result = new TargetVarDecl(converter.convert(localVarDecl.getType(), generics), localVarDecl.getName(), null);
     }
 
     static boolean convertsTo(TargetType from, TargetType to) {
@@ -216,19 +218,19 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(MethodCall methodCall) {
-        var receiverType = converter.convert(methodCall.receiver.getType());
+        var receiverType = converter.convert(methodCall.receiver.getType(), generics);
         var isFunNType = receiverType instanceof TargetFunNType;
 
-        var returnType = isFunNType ? TargetType.Object : converter.convert(methodCall.signature.get(methodCall.signature.size() - 1));
-        var receiverName = new JavaClassName(converter.convert(methodCall.receiver.getType()).name());
-        var argList = methodCall.signature.stream().map(converter::convert).toList();
+        var returnType = isFunNType ? TargetType.Object : converter.convert(methodCall.signature.getLast(), generics);
+        var receiverName = new JavaClassName(converter.convert(methodCall.receiver.getType(), generics).name());
+        var argList = methodCall.signature.stream().map(sig -> converter.convert(sig, generics)).toList();
         argList = argList.subList(0, argList.size() - 1);
 
         Method foundMethod = null;
         var isStatic = false;
         var isInterface = true;
         var isPrivate = false;
-        var signature = methodCall.signatureArguments().stream().map(converter::convert).toList();
+        var signature = methodCall.signatureArguments().stream().map(sig -> converter.convert(sig, generics)).toList();
 
         // Add used TPHs to containing method
         for (var i = 0; i < methodCall.signatureArguments().size(); i++) {
@@ -248,23 +250,28 @@ public class StatementToTargetExpression implements ASTVisitor {
         }
 
         if (!isFunNType) {
-            returnType = converter.convert(foundMethod.getReturnType());
-            argList = foundMethod.getParameterList().getFormalparalist().stream().map(e -> converter.convert(e.getType())).toList();
+            returnType = converter.convert(foundMethod.getReturnType(), generics);
+            argList = foundMethod.getParameterList().getFormalparalist().stream().map(e -> converter.convert(e.getType(), generics)).toList();
             isStatic = Modifier.isStatic(foundMethod.modifier);
             isPrivate = Modifier.isPrivate(foundMethod.modifier);
             isInterface = receiverClass.isInterface();
         }
 
         System.out.println(argList);
-        result = new TargetMethodCall(converter.convert(methodCall.getType()), returnType, argList, converter.convert(methodCall.receiver), methodCall.getArgumentList().getArguments().stream().map(converter::convert).toList(), receiverType, methodCall.name, isStatic, isInterface, isPrivate);
+        result = new TargetMethodCall(
+            converter.convert(methodCall.getType(), generics), returnType, argList,
+            converter.convert(methodCall.receiver, generics),
+            methodCall.getArgumentList().getArguments().stream().map(arg -> converter.convert(arg, generics)).toList(),
+            receiverType, methodCall.name, isStatic, isInterface, isPrivate
+        );
     }
 
     @Override
     public void visit(NewClass newClass) {
         var receiverName = new JavaClassName(newClass.name);
-        var ctor = converter.findConstructor(converter.compiler.getClass(receiverName), newClass.signatureArguments().stream().map(converter::convert).toList());
-        var signature = ctor.orElseThrow().getParameterList().getFormalparalist().stream().map(e -> converter.convert(e.getType())).toList();
-        result = new TargetNew(new TargetRefType(newClass.name), signature, newClass.getArgumentList().getArguments().stream().map(converter::convert).toList());
+        var ctor = converter.findConstructor(converter.compiler.getClass(receiverName), newClass.signatureArguments().stream().map(arg -> converter.convert(arg, generics)).toList());
+        var signature = ctor.orElseThrow().getParameterList().getFormalparalist().stream().map(e -> converter.convert(e.getType(), generics)).toList();
+        result = new TargetNew(new TargetRefType(newClass.name), signature, newClass.getArgumentList().getArguments().stream().map(arg -> converter.convert(arg, generics)).toList());
     }
 
     @Override
@@ -275,7 +282,7 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(Return aReturn) {
-        result = new TargetReturn(converter.convert(aReturn.retexpr));
+        result = new TargetReturn(converter.convert(aReturn.retexpr, generics));
     }
 
     @Override
@@ -295,53 +302,53 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(StaticClassName staticClassName) {
-        result = new TargetClassName(converter.convert(staticClassName.getType()));
+        result = new TargetClassName(converter.convert(staticClassName.getType(), generics));
     }
 
     @Override
     public void visit(Super aSuper) {
-        result = new TargetSuper(converter.convert(aSuper.getType()));
+        result = new TargetSuper(converter.convert(aSuper.getType(), generics));
     }
 
     @Override
     public void visit(This aThis) {
-        result = new TargetThis(converter.convert(aThis.getType()));
+        result = new TargetThis(converter.convert(aThis.getType(), generics));
     }
 
     @Override
     public void visit(WhileStmt whileStmt) {
-        result = new TargetWhile(converter.convert(whileStmt.expr), converter.convert(whileStmt.loopBlock));
+        result = new TargetWhile(converter.convert(whileStmt.expr, generics), converter.convert(whileStmt.loopBlock, generics));
     }
 
     @Override
     public void visit(DoStmt whileStmt) {
-        result = new TargetDo(converter.convert(whileStmt.expr), converter.convert(whileStmt.loopBlock));
+        result = new TargetDo(converter.convert(whileStmt.expr, generics), converter.convert(whileStmt.loopBlock, generics));
     }
 
     // TODO These two might not be necessary
     @Override
     public void visit(AssignToField assignLeftSide) {
-        result = converter.convert(assignLeftSide.field);
+        result = converter.convert(assignLeftSide.field, generics);
     }
 
     @Override
     public void visit(AssignToLocal assignLeftSide) {
-        result = converter.convert(assignLeftSide.localVar);
+        result = converter.convert(assignLeftSide.localVar, generics);
     }
 
     @Override
     public void visit(SuperCall superCall) {
-        var aSuper = converter.convert(superCall.receiver.getType());
-        var type = converter.convert(superCall.getType());
-        var receiverName = new JavaClassName(converter.convert(superCall.receiver.getType()).name());
+        var aSuper = converter.convert(superCall.receiver.getType(), generics);
+        var type = converter.convert(superCall.getType(), generics);
+        var receiverName = new JavaClassName(converter.convert(superCall.receiver.getType(), generics).name());
         var clazz = converter.compiler.getClass(receiverName);
-        var signature = superCall.signatureArguments().stream().map(converter::convert).toList();
+        var signature = superCall.signatureArguments().stream().map(arg -> converter.convert(arg, generics)).toList();
         var method = converter.findConstructor(clazz, signature);
-        var params = superCall.getArgumentList().getArguments().stream().map(converter::convert).toList();
+        var params = superCall.getArgumentList().getArguments().stream().map(arg -> converter.convert(arg, generics)).toList();
 
         List<TargetType> argList;
         if (method.isPresent()) {
-            argList = method.get().getParameterList().getFormalparalist().stream().map(e -> converter.convert(e.getType())).toList();
+            argList = method.get().getParameterList().getFormalparalist().stream().map(e -> converter.convert(e.getType(), generics)).toList();
         } else {
             argList = params.stream().map(TargetExpression::type).toList();
         }
@@ -351,28 +358,28 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(ThisCall thisCall) {
-        var aThis = converter.convert(thisCall.receiver.getType());
-        var type = converter.convert(thisCall.getType());
-        var parameters = thisCall.arglist.getArguments().stream().map(par -> converter.convert(par.getType())).toList();
+        var aThis = converter.convert(thisCall.receiver.getType(), generics);
+        var type = converter.convert(thisCall.getType(), generics);
+        var parameters = thisCall.arglist.getArguments().stream().map(par -> converter.convert(par.getType(), generics)).toList();
 
-        result = new TargetMethodCall(type, type, parameters, new TargetThis(aThis), thisCall.getArgumentList().getArguments().stream().map(converter::convert).toList(), aThis, thisCall.name, false, false, false);
+        result = new TargetMethodCall(type, type, parameters, new TargetThis(aThis), thisCall.getArgumentList().getArguments().stream().map(arg -> converter.convert(arg, generics)).toList(), aThis, thisCall.name, false, false, false);
     }
 
     @Override
     public void visit(ExpressionReceiver expressionReceiver) {
-        result = converter.convert(expressionReceiver.expr);
+        result = converter.convert(expressionReceiver.expr, generics);
     }
 
     @Override
     public void visit(UnaryExpr unaryExpr) {
         result = switch (unaryExpr.operation) {
-        case NOT -> new TargetUnaryOp.Not(converter.convert(unaryExpr.getType()), converter.convert(unaryExpr.expr));
-        case MINUS -> new TargetUnaryOp.Negate(converter.convert(unaryExpr.getType()), converter.convert(unaryExpr.expr));
-        case PREINCREMENT -> new TargetUnaryOp.PreIncrement(converter.convert(unaryExpr.getType()), converter.convert(unaryExpr.expr));
-        case PREDECREMENT -> new TargetUnaryOp.PreDecrement(converter.convert(unaryExpr.getType()), converter.convert(unaryExpr.expr));
-        case POSTINCREMENT -> new TargetUnaryOp.PostIncrement(converter.convert(unaryExpr.getType()), converter.convert(unaryExpr.expr));
-        case PLUS -> new TargetUnaryOp.Add(converter.convert(unaryExpr.getType()), converter.convert(unaryExpr.expr));
-        case POSTDECREMENT -> new TargetUnaryOp.PostDecrement(converter.convert(unaryExpr.getType()), converter.convert(unaryExpr.expr));
+        case NOT -> new TargetUnaryOp.Not(converter.convert(unaryExpr.getType(), generics), converter.convert(unaryExpr.expr, generics));
+        case MINUS -> new TargetUnaryOp.Negate(converter.convert(unaryExpr.getType(), generics), converter.convert(unaryExpr.expr, generics));
+        case PREINCREMENT -> new TargetUnaryOp.PreIncrement(converter.convert(unaryExpr.getType(), generics), converter.convert(unaryExpr.expr, generics));
+        case PREDECREMENT -> new TargetUnaryOp.PreDecrement(converter.convert(unaryExpr.getType(), generics), converter.convert(unaryExpr.expr, generics));
+        case POSTINCREMENT -> new TargetUnaryOp.PostIncrement(converter.convert(unaryExpr.getType(), generics), converter.convert(unaryExpr.expr, generics));
+        case PLUS -> new TargetUnaryOp.Add(converter.convert(unaryExpr.getType(), generics), converter.convert(unaryExpr.expr, generics));
+        case POSTDECREMENT -> new TargetUnaryOp.PostDecrement(converter.convert(unaryExpr.getType(), generics), converter.convert(unaryExpr.expr, generics));
         };
     }
 
@@ -400,12 +407,12 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(Throw aThrow) {
-        result = new TargetThrow(converter.convert(aThrow.expr));
+        result = new TargetThrow(converter.convert(aThrow.expr, generics));
     }
 
     @Override
     public void visit(Ternary ternary) {
-        result = new TargetTernary(converter.convert(ternary.getType()), converter.convert(ternary.cond), converter.convert(ternary.iftrue), converter.convert(ternary.iffalse));
+        result = new TargetTernary(converter.convert(ternary.getType(), generics), converter.convert(ternary.cond, generics), converter.convert(ternary.iftrue, generics), converter.convert(ternary.iffalse, generics));
     }
 
     record TypeVariants(RefTypeOrTPHOrWildcardOrGeneric in, List<RefTypeOrTPHOrWildcardOrGeneric> types) {}
@@ -469,10 +476,8 @@ public class StatementToTargetExpression implements ASTVisitor {
                     var product = cartesianProduct(extractAllPatterns(label.getPattern()));
 
                     for (var l : product) {
-                        var oldGenerics = converter.generics;
-
                         // Set the generics to matching result set
-                        for (var generics : converter.currentMethodOverloads) {
+                        /*for (var generics : converter.currentMethodOverloads) {
                             var java = generics.javaGenerics();
                             var equals = true;
                             for (var pair : l) {
@@ -481,17 +486,15 @@ public class StatementToTargetExpression implements ASTVisitor {
                                 }
                             }
                             if (equals) {
-                                converter.generics = generics;
                                 break;
                             }
-                        }
+                        }*/
 
-                        overloads.add(converter.convert(case_));
-                        converter.generics = oldGenerics;
+                        overloads.add(converter.convert(case_, generics));
                     }
                 }
             } else {
-                overloads.add(converter.convert(case_));
+                overloads.add(converter.convert(case_, generics));
             }
 
             return overloads;
@@ -500,10 +503,10 @@ public class StatementToTargetExpression implements ASTVisitor {
         TargetSwitch.Case default_ = null;
         for (var block : switchStmt.getBlocks()) {
             if (block.isDefault()) {
-                default_ = new TargetSwitch.Case(converter.convert((Block) block), block.isExpression);
+                default_ = new TargetSwitch.Case(converter.convert((Block) block, generics), block.isExpression);
             }
         }
-        result = new TargetSwitch(converter.convert(switchStmt.getSwitch()), cases, default_ , converter.convert(switchStmt.getType()), !switchStmt.getStatement());
+        result = new TargetSwitch(converter.convert(switchStmt.getSwitch(), generics), cases, default_ , converter.convert(switchStmt.getType(), generics), !switchStmt.getStatement());
     }
 
     @Override
@@ -511,12 +514,12 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(SwitchLabel switchLabel) {
-        result = converter.convert(switchLabel.getPattern());
+        result = converter.convert(switchLabel.getPattern(), this.generics);
     }
 
     @Override
     public void visit(Yield aYield) {
-        result = new TargetYield(converter.convert(aYield.retexpr));
+        result = new TargetYield(converter.convert(aYield.retexpr, generics));
     }
 
     @Override
@@ -586,30 +589,30 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(FormalParameter aPattern) {
-        result = new TargetTypePattern(converter.convert(aPattern.getType()), aPattern.getName());
+        result = new TargetTypePattern(converter.convert(aPattern.getType(), generics), aPattern.getName());
     }
 
     @Override
     public void visit(LiteralPattern literalPattern) {
-        result = new TargetExpressionPattern(converter.convert(literalPattern.value));
+        result = new TargetExpressionPattern(converter.convert(literalPattern.value, generics));
     }
 
     @Override
     public void visit(ExpressionPattern aPattern) {
-        result = converter.convert(aPattern.getExpression());
+        result = converter.convert(aPattern.getExpression(), generics);
     }
 
     @Override
     public void visit(RecordPattern aRecordPattern) {
         result = new TargetComplexPattern(
-            converter.convert(aRecordPattern.getType()),
+            converter.convert(aRecordPattern.getType(), generics),
             aRecordPattern.getName(),
-            aRecordPattern.getSubPattern().stream().map(x -> (TargetPattern) converter.convert(x)).toList()
+            aRecordPattern.getSubPattern().stream().map(x -> (TargetPattern) converter.convert(x, generics)).toList()
         );
     }
 
     @Override
     public void visit(GuardedPattern aGuardedPattern) {
-        result = new TargetGuard((TargetPattern) converter.convert(aGuardedPattern.getNestedPattern()), converter.convert(aGuardedPattern.getCondition()));
+        result = new TargetGuard((TargetPattern) converter.convert(aGuardedPattern.getNestedPattern(), generics), converter.convert(aGuardedPattern.getCondition(), generics));
     }
 }

src/main/java/de/dhbwstuttgart/typedeployment/TypeInsertPlacer.java

@@ -55,7 +55,7 @@ class TypeInsertPlacerClass extends AbstractASTWalker{
     @Override
     public void visit(Method method) {
         this.method = method;
-        constraints = generatedGenerics.get(method);
+        constraints = generatedGenerics.get(cl, method);
 		classConstraints = generatedGenerics.get(cl);
         if(method.getReturnType() instanceof TypePlaceholder)
             inserts.add(TypeInsertFactory.createInsertPoints(

src/test/java/TestComplete.java

@@ -931,7 +931,7 @@ public class TestComplete {
 
     }
 
-    @Disabled("Not implemented")
+    //@Disabled("Not implemented")
     @Test
     public void testPatternMatchingListAppend() throws Exception {
         var classFiles = generateClassFiles(createClassLoader(), "PatternMatchingListAppend.jav");

src/test/java/targetast/TestGenerics.java

@@ -65,7 +65,7 @@ public class TestGenerics {
         var b = result.findField("b");
 
         var generics = result.genericsResults.get(0);
-        assertEquals(1, generics.get(anyMethod).size());
+        assertEquals(1, generics.get(result.clazz, anyMethod).size());
         assertEquals(2, generics.get(result.clazz).size());
 
         var ECK1 = generics.getBounds(otherMethod.getParameterList().getParameterAt(0).getType(), result.clazz, anyMethod);
@@ -86,7 +86,7 @@ public class TestGenerics {
 
         var generics = result.genericsResults.get(0);
         assertEquals(1, generics.get(result.clazz).size());
-        assertEquals(0, generics.get(fReturn).size());
+        assertEquals(0, generics.get(result.clazz, fReturn).size());
 
         var N = generics.getBounds(fReturn.getReturnType(), result.clazz);
         var NChain = new BoundsList(onClass(OBJECT));
@@ -101,8 +101,8 @@ public class TestGenerics {
 
         var generics = result.genericsResults.get(0);
         assertEquals(0, generics.get(result.clazz).size());
-        assertEquals(3, generics.get(m).size());
-        assertEquals(3, generics.get(main).size());
+        assertEquals(3, generics.get(result.clazz, m).size());
+        assertEquals(3, generics.get(result.clazz, main).size());
 
         {
             var AJ = generics.getBounds(m.getParameterList().getParameterAt(0).getType(), result.clazz, m);
@@ -143,9 +143,9 @@ public class TestGenerics {
 
         var generics = result.genericsResults.get(0);
         assertEquals(1, generics.get(result.clazz).size());
-        assertEquals(2, generics.get(id).size());
-        assertEquals(1, generics.get(setA).size());
-        assertEquals(2, generics.get(m).size());
+        assertEquals(2, generics.get(result.clazz, id).size());
+        assertEquals(1, generics.get(result.clazz, setA).size());
+        assertEquals(2, generics.get(result.clazz, m).size());
 
         var R = generics.getBounds(a.getType(), result.clazz);
         var RChain =  new BoundsList(onClass(OBJECT));
@@ -183,9 +183,9 @@ public class TestGenerics {
 
         var generics = result.genericsResults.get(0);
         assertEquals(1, generics.get(result.clazz).size());
-        assertEquals(2, generics.get(id).size());
-        assertEquals(2, generics.get(m).size());
-        assertEquals(3, generics.get(main).size());
+        assertEquals(2, generics.get(result.clazz, id).size());
+        assertEquals(2, generics.get(result.clazz, m).size());
+        assertEquals(3, generics.get(result.clazz, main).size());
 
         var N = generics.getBounds(a.getType(), result.clazz);
         assertEquals(N, new BoundsList(onClass(OBJECT)));
@@ -215,7 +215,7 @@ public class TestGenerics {
         var anyMethod = result.findMethod("anyMethod");
 
         var generics = result.genericsResults.get(0);
-        assertEquals(1, generics.get(anyMethod).size());
+        assertEquals(1, generics.get(result.clazz, anyMethod).size());
 
         var M = generics.getBounds(anyMethod.getReturnType(), result.clazz, anyMethod);
         assertEquals(M, new BoundsList(onMethod(OBJECT)));