diff --git a/src/main/java/de/maishai/typedast/MethodContext.java b/src/main/java/de/maishai/typedast/MethodContext.java
index b1b78f1..392f4de 100644
--- a/src/main/java/de/maishai/typedast/MethodContext.java
+++ b/src/main/java/de/maishai/typedast/MethodContext.java
@@ -1,10 +1,22 @@
 package de.maishai.typedast;
 
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
+import lombok.*;
+import org.objectweb.asm.Label;
+
+import java.util.HashMap;
+import java.util.Map;
 
 @NoArgsConstructor
+@Getter
+@Setter
 @Data
 public class MethodContext {
+    private Label startLabel;
+    private Label endLabel;
+    private int localVarIndex = 0;
+    private Map<String, Integer> variableIndex = new HashMap<>();
+
+    public void addVariable(String name, int index) {
+        variableIndex.put(name, index);
+    }
 }
diff --git a/src/main/java/de/maishai/typedast/typedclass/TypedLocalVariable.java b/src/main/java/de/maishai/typedast/typedclass/TypedLocalVariable.java
index bb5b483..5177987 100644
--- a/src/main/java/de/maishai/typedast/typedclass/TypedLocalVariable.java
+++ b/src/main/java/de/maishai/typedast/typedclass/TypedLocalVariable.java
@@ -38,5 +38,9 @@ public final class TypedLocalVariable implements TypedNode {
     }
 
     public void codeGen(MethodVisitor mv, MethodContext ctx) {
+        int index = ctx.getLocalVarIndex();
+        ctx.setLocalVarIndex(index + 1);
+        ctx.addVariable(name, index);
+        mv.visitLocalVariable(name, type.getDescriptor(), null, ctx.getStartLabel(), ctx.getEndLabel(), index);
     }
 }
diff --git a/src/main/java/de/maishai/typedast/typedclass/TypedMethod.java b/src/main/java/de/maishai/typedast/typedclass/TypedMethod.java
index 6526e89..ea27c4f 100644
--- a/src/main/java/de/maishai/typedast/typedclass/TypedMethod.java
+++ b/src/main/java/de/maishai/typedast/typedclass/TypedMethod.java
@@ -22,12 +22,17 @@ public class TypedMethod implements TypedNode {
     public TypedMethod unTypedMethodToTypedMethod(Method unTypedMethod) {
         TypedMethod typedMethod = new TypedMethod();
         typedMethod.setName(unTypedMethod.methodName());
+        typedMethod.setTypedParameters(new ArrayList<>());
 
-        for(Parameter parameter : unTypedMethod.params()){
-            TypedParameter typedParameter = new TypedParameter();
-            typedParameter.setParaName(parameter.name());
-            typedParameter.setType(parameter.type());
-            typedParameters.add(typedParameter);
+        if(unTypedMethod.params().isEmpty()){
+            typedMethod.setTypedParameters(List.of());
+        }else {
+            for (Parameter parameter : unTypedMethod.params()) {
+                TypedParameter typedParameter = new TypedParameter();
+                typedParameter.setParaName(parameter.name());
+                typedParameter.setType(parameter.type());
+                typedParameters.add(typedParameter);
+            }
         }
         TypedBlock block = new TypedBlock();
         typedMethod.setTypedBlock(block.unTypedBlockToTypedBlock(unTypedMethod.block()));