implement new node types according to the new grammar

src/main/java/de/hsrm/compiler/Klang/nodes/expressions/AdditionExpression.java

@@ -2,9 +2,8 @@ package de.hsrm.compiler.Klang.nodes.expressions;
 
 import de.hsrm.compiler.Klang.visitors.Visitor;
 
-public class AdditiveExpression extends BinaryExpression {
+public class AdditionExpression extends BinaryExpression {
-
+    public AdditionExpression(Expression lhs, Expression rhs) {
-    public AdditiveExpression(Expression lhs, Expression rhs) {
         super(lhs, rhs);
     }
 
@@ -12,5 +11,4 @@ public class AdditiveExpression extends BinaryExpression {
     public <R> R welcome(Visitor<R> v) {
         return v.visit(this);
     }
-
 }

src/main/java/de/hsrm/compiler/Klang/nodes/expressions/BinaryExpression.java

@@ -1,7 +1,6 @@
 package de.hsrm.compiler.Klang.nodes.expressions;
 
 public abstract class BinaryExpression extends Expression {
-
     public Expression lhs;
     public Expression rhs;
 

src/main/java/de/hsrm/compiler/Klang/nodes/expressions/DivisionExpression.java

@@ -0,0 +1,14 @@
+package de.hsrm.compiler.Klang.nodes.expressions;
+
+import de.hsrm.compiler.Klang.visitors.Visitor;
+
+public class DivisionExpression extends BinaryExpression {
+    public DivisionExpression(Expression lhs, Expression rhs) {
+        super(lhs, rhs);
+    }
+
+    @Override
+    public <R> R welcome(Visitor<R> v) {
+        return v.visit(this);
+    }
+}

src/main/java/de/hsrm/compiler/Klang/nodes/expressions/ModuloExpression.java

@@ -3,7 +3,6 @@ package de.hsrm.compiler.Klang.nodes.expressions;
 import de.hsrm.compiler.Klang.visitors.Visitor;
 
 public class ModuloExpression extends BinaryExpression {
-
     public ModuloExpression(Expression lhs, Expression rhs) {
         super(lhs, rhs);
     }
@@ -12,5 +11,4 @@ public class ModuloExpression extends BinaryExpression {
     public <R> R welcome(Visitor<R> v) {
         return v.visit(this);
     }
-
 }

src/main/java/de/hsrm/compiler/Klang/nodes/expressions/MultiplicationExpression.java

@@ -1,9 +1,9 @@
 package de.hsrm.compiler.Klang.nodes.expressions;
 
-import de.hsrm.compiler.Klang.visitors.Visitor;;
+import de.hsrm.compiler.Klang.visitors.Visitor;
 
-public class MultiplicativeExpression extends BinaryExpression {
+public class MultiplicationExpression extends BinaryExpression {
-    public MultiplicativeExpression(Expression lhs, Expression rhs) {
+    public MultiplicationExpression(Expression lhs, Expression rhs) {
         super(lhs, rhs);
     }
 

src/main/java/de/hsrm/compiler/Klang/nodes/expressions/SubstractionExpression.java

@@ -0,0 +1,14 @@
+package de.hsrm.compiler.Klang.nodes.expressions;
+
+import de.hsrm.compiler.Klang.visitors.Visitor;
+
+public class SubstractionExpression extends BinaryExpression {
+    public SubstractionExpression(Expression lhs, Expression rhs) {
+        super(lhs, rhs);
+    }
+
+    @Override
+    public <R> R welcome(Visitor<R> v) {
+        return v.visit(this);
+    }
+}