fix if field and parameter have same identifier

src/main/java/semantic/SemanticAnalyzer.java

@@ -535,6 +535,10 @@ public class SemanticAnalyzer implements SemanticVisitor {
 
         ITypeNode currentType = null;
 
+        if (memberAccessNode.thisExpr) {
+            currentType = new ReferenceType(currentClass.identifier);
+        }
+
         for (String s : memberAccessNode.identifiers) {
             if (currentType == null) {
                 if (currentScope.getLocalVar(s) != null) {
@@ -552,7 +556,7 @@ public class SemanticAnalyzer implements SemanticVisitor {
                     var currentTypeClass = context.getClass(reference.getIdentifier());
 
                     var currentField = currentTypeClass.getField(s);
-                    if (currentField.getAccessModifier().accessType == EnumAccessModifierNode.PUBLIC) {
+                    if (currentField.getAccessModifier().accessType == EnumAccessModifierNode.PUBLIC || memberAccessNode.thisExpr) {
                         currentType = currentField.getType();
                     } else {
                         errors.add(new NotVisibleException("This field is not visible"));

src/main/java/semantic/context/FieldContext.java

@@ -4,13 +4,15 @@ import ast.members.FieldNode;
 import ast.type.*;
 import ast.type.type.*;
 
+import java.util.Objects;
+
 public class FieldContext {
 
   private AccessModifierNode accessModifier;
   private ITypeNode type;
 
   public FieldContext(FieldNode field) {
-    accessModifier = field.accessTypeNode;
+      accessModifier = Objects.requireNonNullElseGet(field.accessTypeNode, () -> new AccessModifierNode("private"));
     type = field.type;
   }
 

src/test/resources/input/typedAstFeaturesTests/CorrectTest.java

@@ -1,63 +1,9 @@
 
 public class AllFeaturesClassExample {
-    int a;
-    boolean b;
-    char c;
+    int x;
 
-    public void controlStructures(int adf, boolean bool) {
-        if (a > (10 + 8)) {
-        } else {
-        }
-
-
-        while (a > adf) {
-            a--;
-        }
-
-        for (int i = 0; i < 5; i++) {
-        }
-
-
-    }
-
-//    void logicalOperations() {
-//        // Logische UND-Operation
-//        if (b && a > 5) {
-////            System.out.println("a ist größer als 5 und b ist wahr");
-//        }
-//
-//        // Logische ODER-Operation
-//        if (b || a < 5) {
-////            System.out.println("b ist wahr oder a ist kleiner als 5");
-//        }
-//    }
-
-//    public static void main(String[] args) {
-//        AllFeaturesClassExample obj = new AllFeaturesClassExample(12, true, 'a');
-//        obj.controlStructures();
-//    }
-}
-
-public class Test {
-
-    public Car c;
-
-    public int test(boolean b, int x) {
-        if (b == true) {
-            return c.getSpeed();
-        } else {
-            return x;
-        }
-    }
-
-}
-
-public class Car {
-
-    private int speed;
-
-    public int getSpeed() {
-        return speed;
+    public boolean test(boolean x){
+        return x;
     }
 
 }