Oder Documentation and Delete unnecessary

# Conflicts:
#	src/main/java/bytecode/MethodCodeGen.java

.gitignore

@@ -77,9 +77,10 @@ fabric.properties
 .idea/caches/build_file_checksums.ser
 
 /target
-src/main/resources/logs/RaupenLog.log
-src/main/resources/output/CompilerInput.class
+src/main/resources/logs/miniCompilerLog.log
+src/test/java/main/CompilerInput.class
 src/test/resources/output/javac/CompilerInput$Test.class
 src/test/resources/output/javac/CompilerInput.class
-src/test/resources/output/raupenpiler/CompilerInput.class
-src/test/resources/output/raupenpiler/CompilerInput$Test.class
+src/test/resources/output/miniCompiler/CompilerInput.class
+src/test/resources/output/miniCompiler/CompilerInput$Test.class
+.idea/inspectionProfiles/Project_Default.xml

.idea/jarRepositories.xml

@@ -6,6 +6,11 @@
       <option name="name" value="Central Repository" />
       <option name="url" value="https://repo.maven.apache.org/maven2" />
     </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven_central" />
+      <option name="name" value="Maven Central" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
     <remote-repository>
       <option name="id" value="central" />
       <option name="name" value="Maven Central repository" />

.idea/misc.xml

@@ -6,7 +6,7 @@
         <PerGrammarGenerationSettings>
           <option name="fileName" value="$PROJECT_DIR$/src/main/java/parser/SimpleJava.g4" />
           <option name="autoGen" value="true" />
-          <option name="outputDir" value="C:\Users\Johannes\Documents\Github\JavaCompiler\src\main\java" />
+          <option name="outputDir" value="C:\Users\ARB00075\Documents\DH\Compilerbau\NichtHaskell2.0\src\main\java" />
           <option name="libDir" value="" />
           <option name="encoding" value="" />
           <option name="pkg" value="parser.generated" />

Makefile

@@ -0,0 +1,37 @@
+### IntelliJs play buttons do not work. Run in "src/test" folder with "make" command to run all
+### Or run only parts with "make compile-javac", "make clean" etc.
+
+all: compile-javac compile-miniCompiler
+
+compile-javac:
+	#javac -d src/test/resources/output/javac src/test/resources/input/CompilerInput.java
+
+compile-miniCompiler:
+	cd ../.. ; mvn -DskipTests install
+	cd ../.. ; mvn exec:java -DgenJar=true -DgenClass=true -Dexec.mainClass="main.Main" -Dexec.args="'src/main/resources/input/CompilerInput.java' 'src/main/resources/output'"
+	# cp src/main/resources/output/CompilerInput.class src/test/resources/output/miniCompiler
+
+test-miniCompiler:
+	# move the compiled class to the test/main folder
+	mv src/main/resources/output/CompilerInput.class src/test/java/main/
+	# compile the test class
+	javac src/test/java/main/EndToEndTester.java
+	# run the test class
+	java -cp src/test/java/main EndToEndTester
+
+clean:
+	# clean main output folders
+	rm -f src/main/resources/output/*.class
+	rm -f src/main/resources/output/*.jar
+	# clean resources output folders
+	rm -f src/test/resources/output/javac/*.class
+	rm -f src/test/resources/output/miniCompiler/*.class
+	rm -f src/test/resources/output/miniCompiler/*.jar
+	# clean logs
+	rm -f src/main/resources/logs/*
+	# clean test/java/main folders from .class files for End-to-End tests
+	rm -f src/test/java/main/*.class
+	# clean javac output from every folder
+	rm -f src/test/resources/input/*/*.class
+	# clean test results from maven surefire plugin
+	rm -f ../../target/surefire-reports/*.txt

README.md

@@ -0,0 +1,136 @@
+# "Nicht Haskel 2.0" Java Compiler
+
+Realisation of a subset of the Java Standard Compiler in the course Compiler Construction of the 4th semester Computer Science at the Duale Hochschule Stuttgart (Horb).
+
+This project aims to provide a simplified version of the Java compiler, focusing on key language features and demonstrating the principles of compiler construction.
+
+## Realised Java syntax
+
+- **Data types**: `int`, `boolean`, `char`
+- **Access modifier**: `public`, `protected`, `private`
+- **Operators**: `=` `+` `-` `*` `%` `/` `>` `<` `>=` `<=` `==` `!=` `!` `&&` `||` `++` `--`
+- **Keywords**: `class`, `this`, `while`, `do`, `if`, `else`, `for`, `return`, `new`, `switch`, `case`, `break`, `default`, `:`
+- **Statements**:
+    - `if` ... `if else` ... `else`;
+    - `while` ... ;
+    - `do` ... `while`;
+    - `for`;
+- **Comments**:
+    - Single line: `// comment`
+    - Multi-line: `/* comment */`
+- **Further functions**:
+    - All methods are overloadable
+    - High maintainability and expandability through implementation of the visitor pattern
+    - Logging Input and Outputs
+    - Error Handling in the Semantic Check
+
+## Project Structure
+
+```plain
+src/
+└── main/
+    ├── java/
+    │   ├── ast/              -> Defining the structure of the AST
+    │   ├── bytecode/         -> Generate Java bytecode
+    │   ├── main/             -> Running the compiler
+    │   ├── parser/
+    │   │   ├── astBuilder/   -> Builder creating the AST
+    │   │   ├── generated/    -> Antlr generated grammar
+    │   │   └── grammar/      -> Antlr grammar
+    │   ├── semantic/         -> Running the semantic check
+    │   └── visitor/          -> Visitor interface
+    └── resources/
+test/
+└── java/
+  │ ├── main/                 -> Running E2E tests 
+  │ ├── parser/               -> Performs tests on the parser
+  │ ├── semantic/             -> Performs tests on the semantic check
+  └── resources/              -> Ressources for running the Tests
+```
+
+## Class-Diagramm AST
+
+![AST Diagramm](ast.png)
+
+## Distribution of the realisation
+
+### i22030 & i22035
+Ausführliche Beschreibung der Parser Umsetzung:
+
+![Parserumsetzung](Parser_Dokumentation.pdf)
+
+Parser:
+- Grammar -> (src/main/java/parser/grammar)
+- Scanner 
+- Parser
+- Abstract Syntax Tree (AST) -> (src/main/java/ast)
+- AstBuilder -> (src/main/java/parser/astBuilder)
+
+Parser tests:
+- ParserTests -> (src/test/java/parser)
+- TestCases -> (src/test/resources/input/singeFeatureTests)
+
+Other:
+- Documentation -> (README.md)
+- Ast Class-Diagramm -> (ast.png) 
+- PowerPoint
+
+### i22005
+Semantic check:
+- Set all types and check whether types have been used correctly
+- Contexts -> (src/main/java/semantic/context)
+- Exceptions Handling -> (src/main/java/semantic/exceptions)
+
+Semantic Tests:
+- Typing and Type checking -> (src/test/java/semantic/EndToTypedAstTest)
+- Exception and feature test -> (src/test/resources/input/typedAstExceptionsTests)
+
+### i22007
+Bytecode generation:
+- Complete bytecode generation -> (src/mein/java/bytecode)
+
+### i22011
+Tests and execution:
+- Makefile
+- Running Compiler -> (src/main/main)
+- Running E2E tests -> (src/test/main)
+- Typing and Type checking -> (src/test/java/semantic/EndToTypedAstTest)
+
+
+## Used Tools
+
+- [Maven 4.0](https://maven.apache.org/index.html)
+  - Used for automating the build process and managing dependencies.
+- [ANTLR4 v.13.1](https://www.antlr.org/)
+  - Used to parse the input Java code into the Abstract Syntax Tree.
+
+## How to run the compiler
+### Possibilities
+### 1. Start miniCompiler using make:
+Make needs to be installed
+```bash
+cd .\src\test\ ; make clean compile-miniCompiler
+```
+
+### 2. Start miniCompiler using jar:
+If you do not have the .jar, download it [here](https://gitea.hb.dhbw-stuttgart.de/i22005/NichtHaskell2.0/src/branch/main/JavaCompiler-1.0-jar-with-dependencies.jar) or compile it using mvn package or make first
+```
+java.exe -DgenJar=bool -DgenClass=bool -jar path_to_jar\jarName.jar 'path_to_input_file.java' 'path_to_output_directory'
+```
+
+Example (jar needs to be in the target directory)
+```bash
+ java.exe -DgenJar=true -DgenClass=true -jar .\target\JavaCompiler-1.0-jar-with-dependencies.jar 'src/main/resources/input/CompilerInput.java' 'src/main/resources/output'
+```
+
+- set DgenJar true, to generate the jar, false for no jar
+
+```
+ DgenJar=true
+```
+
+- set DgenClass true, to generate class files, false for no class files
+
+```
+ DgenClass=true
+ ```

pom.xml

@@ -20,7 +20,25 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>5.9.3</version> <!-- Change the version as needed -->
+            <version>5.11.0-M2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-suite-engine</artifactId>
+            <version>1.11.0-M2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.11.0-M2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -53,6 +71,11 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>3.0.0-M5</version> <!-- Change the version as needed -->
+                <configuration>
+                    <includes>
+                        <include>**/*Test.java</include>
+                    </includes>
+                </configuration>
             </plugin>
             <plugin>
                 <artifactId>maven-assembly-plugin</artifactId>
@@ -78,4 +101,11 @@
             </plugin>
         </plugins>
     </build>
+    <repositories>
+        <repository>
+            <id>maven_central</id>
+            <name>Maven Central</name>
+            <url>https://repo.maven.apache.org/maven2/</url>
+        </repository>
+    </repositories>
 </project>

src/main/java/ast/ASTNode.java

@@ -1,20 +1,6 @@
 package ast;
 
-import bytecode.visitor.ClassVisitor;
-import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
-
 public interface ASTNode {
-
-    //Todo: @BruderJohn & @i22007 Interface anwenden + geeignetetn Methodename.
-
-    /*
-    Typecheck:
-    public TypeCheckResult acceptType(SemanticVisitor visitor);
-
-    Bytecode:
-    public void accepByteCode(ClassVisitor classVisitor);
-     */
 }
 
 

src/main/java/ast/ClassNode.java

@@ -1,11 +1,11 @@
 package ast;
 
 import ast.type.AccessModifierNode;
-import ast.members.ConstructorNode;
 import ast.members.MemberNode;
 import ast.members.MethodNode;
+import bytecode.visitor.ClassVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 import visitor.Visitable;
 
 import java.util.ArrayList;
@@ -15,31 +15,21 @@ public class ClassNode implements ASTNode, Visitable {
     public AccessModifierNode accessType;
     public String identifier;
     public List<MemberNode> members = new ArrayList<>();
-    public boolean hasConstructor;
 
-    public ClassNode() {}
+    public ClassNode() {
 
-    public ClassNode(String accessType, String identifier){
+    }
+
+    public ClassNode(String accessType, String identifier) {
         this.accessType = new AccessModifierNode(accessType);
         this.identifier = identifier;
-        hasConstructor = false;
     }
 
     public void addMember(MemberNode member) {
-        if (member instanceof ConstructorNode) {
-            this.hasConstructor = true;
-        }
         members.add(member);
     }
 
-    public void ensureConstructor(){
-        if(!hasConstructor) {
-            ConstructorNode constructor = new ConstructorNode(new AccessModifierNode("public"), identifier);
-            members.addFirst(constructor);
-        }
-    }
-
-    public List<MethodNode> getMethods(){
+    public List<MethodNode> getMethods() {
         List<MethodNode> methods = new ArrayList<>();
         for (MemberNode member : members) {
             if (member instanceof MethodNode methodNode) {
@@ -54,4 +44,9 @@ public class ClassNode implements ASTNode, Visitable {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(ClassVisitor classVisitor) {
+        classVisitor.visit(this);
+    }
+
 }

src/main/java/ast/ProgramNode.java

@@ -1,7 +1,8 @@
 package ast;
 
+import bytecode.visitor.ProgramVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 import visitor.Visitable;
 
 import java.util.ArrayList;
@@ -18,4 +19,9 @@ public class ProgramNode implements ASTNode, Visitable {
     public TypeCheckResult accept(SemanticVisitor visitor) {
         return visitor.analyze(this);
     }
+
+    @Override
+    public void accept(ProgramVisitor programVisitor) {
+        programVisitor.visit(this);
+    }
 }

src/main/java/ast/expressions/IExpressionNode.java

@@ -8,4 +8,6 @@ public interface IExpressionNode extends ASTNode, Visitable {
 
     ITypeNode getType();
 
+    void setType(ITypeNode type);
+
 }

src/main/java/ast/expressions/binaryexpressions/BinaryNode.java

@@ -2,10 +2,14 @@ package ast.expressions.binaryexpressions;
 
 import ast.expressions.IExpressionNode;
 import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
+import visitor.Visitable;
 
-public class BinaryNode implements IExpressionNode {
+public class BinaryNode implements IExpressionNode, Visitable {
+
+    public ITypeNode typeNode;
 
     @Override
     public TypeCheckResult accept(SemanticVisitor visitor) {
@@ -14,6 +18,16 @@ public class BinaryNode implements IExpressionNode {
 
     @Override
     public ITypeNode getType() {
-        return null;
+        return typeNode;
+    }
+
+    @Override
+    public void setType(ITypeNode type) {
+        this.typeNode = type;
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
     }
 }

src/main/java/ast/expressions/binaryexpressions/CalculationNode.java

@@ -1,8 +1,8 @@
 package ast.expressions.binaryexpressions;
 
-import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class CalculationNode extends BinaryNode {
     public CalculationNode calculationExpression;
@@ -19,11 +19,13 @@ public class CalculationNode extends BinaryNode {
         this.dotExpression = dotExpression;
     }
 
-    private void setOperator(String operator) {
-        if(operator.equals("+")) {
-            this.operator = EnumLineOperator.PLUS;
-        } else if(operator.equals("-")) {
-            this.operator = EnumLineOperator.MINUS;
+    public void setOperator(String operator) {
+        if (operator != null) {
+            if (operator.equals("+")) {
+                this.operator = EnumLineOperator.PLUS;
+            } else if (operator.equals("-")) {
+                this.operator = EnumLineOperator.MINUS;
+            }
         }
     }
 
@@ -32,9 +34,10 @@ public class CalculationNode extends BinaryNode {
         return visitor.analyze(this);
     }
 
+
     @Override
-    public ITypeNode getType() {
-        return null;
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
     }
 
-}
+}

src/main/java/ast/expressions/binaryexpressions/DotNode.java

@@ -1,31 +1,29 @@
 package ast.expressions.binaryexpressions;
 
-import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class DotNode extends BinaryNode {
     public DotNode dotExpression;
     public EnumDotOperator operator;
-    public DotSubstractionNode dotSubstractionExpression;
+    public DotSubtractionNode dotSubtractionExpression;
 
-    public DotNode(DotNode dotExpression, String operator, DotSubstractionNode dotSubstractionExpression) {
+    public DotNode(DotNode dotExpression, String operator, DotSubtractionNode dotSubtractionExpression) {
         this.dotExpression = dotExpression;
         setOperator(operator);
-        this.dotSubstractionExpression = dotSubstractionExpression;
+        this.dotSubtractionExpression = dotSubtractionExpression;
     }
 
-    public DotNode(DotSubstractionNode dotSubstractionExpression) {
-        this.dotSubstractionExpression = dotSubstractionExpression;
+    public DotNode(DotSubtractionNode dotSubtractionExpression) {
+        this.dotSubtractionExpression = dotSubtractionExpression;
     }
 
-    private void setOperator(String operator) {
-        if(operator.equals("*")) {
-            this.operator = EnumDotOperator.MULT;
-        } else if(operator.equals("/")) {
-            this.operator = EnumDotOperator.DIV;
-        } else if(operator.equals("%")) {
-            this.operator = EnumDotOperator.MOD;
+    public void setOperator(String operator) {
+        switch (operator) {
+            case "*" -> this.operator = EnumDotOperator.MULT;
+            case "/" -> this.operator = EnumDotOperator.DIV;
+            case "%" -> this.operator = EnumDotOperator.MOD;
         }
     }
 
@@ -35,8 +33,8 @@ public class DotNode extends BinaryNode {
     }
 
     @Override
-    public ITypeNode getType() {
-        return null;
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
     }
 
 }

src/main/java/ast/expressions/binaryexpressions/DotSubtractionNode.java

@@ -1,44 +1,44 @@
-package ast.expressions.binaryexpressions;
-
-import ast.expressions.unaryexpressions.MemberAccessNode;
-import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
-import ast.type.type.*;
-import ast.type.ValueNode;
-import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
-
-public class DotSubstractionNode extends BinaryNode {
-    public ValueNode value;
-    public String identifier;
-    public MemberAccessNode memberAccess;
-    public MethodCallNode methodCall;
-    public CalculationNode calculationExpression;
-
-    public DotSubstractionNode(ValueNode value) {
-        this.value = value;
-    }
-
-    public DotSubstractionNode(String identifier) {
-        this.identifier = identifier;
-    }
-
-    public DotSubstractionNode(MemberAccessNode memberAccess) {
-        this.memberAccess = memberAccess;
-    }
-
-    public DotSubstractionNode(MethodCallNode methodCall, CalculationNode calculationExpression) {
-        this.methodCall = methodCall;
-        this.calculationExpression = calculationExpression;
-    }
-
-    @Override
-    public TypeCheckResult accept(SemanticVisitor visitor) {
-        return visitor.analyze(this);
-    }
-
-    @Override
-    public ITypeNode getType() {
-        return null;
-    }
-
-}
+package ast.expressions.binaryexpressions;
+
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.type.ValueNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import semantic.TypeCheckResult;
+
+public class DotSubtractionNode extends BinaryNode {
+    public ValueNode value;
+    public String identifier;
+    public MemberAccessNode memberAccess;
+    public MethodCallNode methodCall;
+    public CalculationNode calculationExpression;
+
+    public DotSubtractionNode(ValueNode value) {
+        this.value = value;
+    }
+
+    public DotSubtractionNode(String identifier) {
+        this.identifier = identifier;
+    }
+
+    public DotSubtractionNode(MemberAccessNode memberAccess) {
+        this.memberAccess = memberAccess;
+    }
+
+    public DotSubtractionNode(MethodCallNode methodCall, CalculationNode calculationExpression) {
+        this.methodCall = methodCall;
+        this.calculationExpression = calculationExpression;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/expressions/binaryexpressions/NonCalculationNode.java

@@ -2,9 +2,9 @@ package ast.expressions.binaryexpressions;
 
 import ast.expressions.IExpressionNode;
 import ast.expressions.unaryexpressions.UnaryNode;
-import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class NonCalculationNode extends BinaryNode {
     public UnaryNode unaryExpression;
@@ -17,23 +17,16 @@ public class NonCalculationNode extends BinaryNode {
         this.expression = expression;
     }
 
-    private void setOperator(String operator) {
-        if(operator.equals("&&")) {
-            this.operator = EnumNonCalculationOperator.AND;
-        } else if(operator.equals("||")) {
-            this.operator = EnumNonCalculationOperator.OR;
-        } else if(operator.equals(">")) {
-            this.operator = EnumNonCalculationOperator.GREATER;
-        } else if(operator.equals("<")) {
-            this.operator = EnumNonCalculationOperator.LESS;
-        } else if(operator.equals(">=")) {
-            this.operator = EnumNonCalculationOperator.GREATER_EQUAL;
-        } else if(operator.equals("<=")) {
-            this.operator = EnumNonCalculationOperator.LESS_EQUAL;
-        } else if(operator.equals("==")) {
-            this.operator = EnumNonCalculationOperator.EQUAL;
-        } else if(operator.equals("!=")) {
-            this.operator = EnumNonCalculationOperator.NOT_EQUAL;
+    public void setOperator(String operator) {
+        switch (operator) {
+            case "&&" -> this.operator = EnumNonCalculationOperator.AND;
+            case "||" -> this.operator = EnumNonCalculationOperator.OR;
+            case ">" -> this.operator = EnumNonCalculationOperator.GREATER;
+            case "<" -> this.operator = EnumNonCalculationOperator.LESS;
+            case ">=" -> this.operator = EnumNonCalculationOperator.GREATER_EQUAL;
+            case "<=" -> this.operator = EnumNonCalculationOperator.LESS_EQUAL;
+            case "==" -> this.operator = EnumNonCalculationOperator.EQUAL;
+            case "!=" -> this.operator = EnumNonCalculationOperator.NOT_EQUAL;
         }
     }
 
@@ -43,8 +36,8 @@ public class NonCalculationNode extends BinaryNode {
     }
 
     @Override
-    public ITypeNode getType() {
-        return null;
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
     }
 
 }

src/main/java/ast/expressions/unaryexpressions/MemberAccessNode.java

@@ -1,13 +1,20 @@
 package ast.expressions.unaryexpressions;
 
 import ast.ASTNode;
+import ast.type.type.ITypeNode;
+import bytecode.visitor.MethodVisitor;
+
+import semantic.SemanticVisitor;
+import semantic.TypeCheckResult;
+import visitor.Visitable;
 
 import java.util.ArrayList;
 import java.util.List;
 
-public class MemberAccessNode implements ASTNode {
+public class MemberAccessNode implements ASTNode, Visitable {
     public Boolean thisExpr;
     public List<String> identifiers = new ArrayList<>();
+    private ITypeNode typeNode;
 
     public MemberAccessNode(Boolean thisExpr) {
         this.thisExpr = thisExpr;
@@ -17,4 +24,22 @@ public class MemberAccessNode implements ASTNode {
         identifiers.add(identifier);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    public ITypeNode getTypeNode() {
+        return typeNode;
+    }
+
+    public void setTypeNode(ITypeNode typeNode) {
+        this.typeNode = typeNode;
+    }
+
+
 }

src/main/java/ast/expressions/unaryexpressions/NotNode.java

@@ -1,13 +1,35 @@
 package ast.expressions.unaryexpressions;
 
-import ast.ASTNode;
 import ast.expressions.IExpressionNode;
+import ast.type.type.ITypeNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import semantic.TypeCheckResult;
 
-public class NotNode implements ASTNode {
+public class NotNode implements IExpressionNode {
     public IExpressionNode expression;
 
     public NotNode(IExpressionNode expression) {
         this.expression = expression;
     }
 
-}
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return null;
+    }
+
+    @Override
+    public ITypeNode getType() {
+        return expression.getType();
+    }
+
+    @Override
+    public void setType(ITypeNode type) {
+        this.expression.setType(type);
+    }
+}

src/main/java/ast/expressions/unaryexpressions/UnaryNode.java

@@ -4,8 +4,9 @@ import ast.expressions.IExpressionNode;
 import ast.statements.IStatementNode;
 import ast.type.type.*;
 import ast.type.ValueNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 import java.util.Objects;
 
@@ -17,10 +18,10 @@ public class UnaryNode implements IExpressionNode {
     public NotNode notExpression;
     public IStatementNode statement;
     public IExpressionNode expression;
-    private ITypeNode type;
+    public ITypeNode type;
 
     public UnaryNode(String value) {
-        if(Objects.equals(value, "this")) {
+        if (Objects.equals(value, "this")) {
             this.thisExp = "this";
         } else {
             this.identifier = value;
@@ -61,4 +62,9 @@ public class UnaryNode implements IExpressionNode {
         this.type = type;
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
 }

src/main/java/ast/members/ConstructorNode.java

@@ -3,23 +3,16 @@ package ast.members;
 import ast.parameters.ParameterNode;
 import ast.statements.BlockNode;
 import ast.type.AccessModifierNode;
+import bytecode.visitor.MethodVisitor;
+import visitor.Visitable;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
-public class ConstructorNode extends MethodNode  {
-    public AccessModifierNode accessType;
-    public String identifier;
-    public List<ParameterNode> parameters = new ArrayList<>();
-    public BlockNode block;
-
-    public ConstructorNode(AccessModifierNode accessType, String identifier) {
-        this.accessType = accessType;
-        this.identifier = identifier;
-    }
-
+public class ConstructorNode extends MethodNode implements Visitable {
     public ConstructorNode(String accessType, String identifier, BlockNode block) {
-        this.accessType = new AccessModifierNode(accessType);
+        this.accesModifier = new AccessModifierNode(accessType);
         this.identifier = identifier;
         this.block = block;
     }
@@ -28,4 +21,21 @@ public class ConstructorNode extends MethodNode  {
         parameters.add(parameterNode);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    public boolean isSame(MethodNode methodNode) {
+        if (!(Objects.equals(this.identifier, methodNode.getIdentifier())) || getParameters().size() != methodNode.getParameters().size()) {
+            return false;
+        }
+
+        for (int i = 0; i < this.getParameters().size(); i++) {
+            if (!this.getParameters().get(i).type.equals(methodNode.getParameters().get(i).type)) {
+                return false;
+            }
+        }
+        return true;
+    }
 }

src/main/java/ast/members/FieldNode.java

@@ -2,8 +2,9 @@ package ast.members;
 
 import ast.type.AccessModifierNode;
 import ast.type.type.ITypeNode;
+import bytecode.visitor.ClassVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 import visitor.Visitable;
 
 public class FieldNode implements MemberNode, Visitable {
@@ -11,7 +12,7 @@ public class FieldNode implements MemberNode, Visitable {
     public ITypeNode type;
     public String identifier;
 
-    public FieldNode(AccessModifierNode accessTypeNode, ITypeNode type, String name){
+    public FieldNode(AccessModifierNode accessTypeNode, ITypeNode type, String name) {
         this.accessTypeNode = accessTypeNode;
         this.type = type;
         this.identifier = name;
@@ -22,4 +23,9 @@ public class FieldNode implements MemberNode, Visitable {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(ClassVisitor classVisitor) {
+        classVisitor.visit(this);
+    }
+
 }

src/main/java/ast/members/MainMethodNode.java

@@ -1,11 +1,17 @@
 package ast.members;
 
 import ast.statements.BlockNode;
+import bytecode.visitor.MethodVisitor;
+import visitor.Visitable;
 
-public class MainMethodNode extends MethodNode {
-    public BlockNode block;
+public class MainMethodNode extends MethodNode implements Visitable {
 
     public MainMethodNode(BlockNode block) {
         this.block = block;
     }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
 }

src/main/java/ast/members/MemberNode.java

@@ -10,7 +10,8 @@ import ast.ASTNode;
 @JsonSubTypes({
         @JsonSubTypes.Type(value = MethodNode.class, name = "Method"),
 
-        @JsonSubTypes.Type(value = FieldNode.class, name = "Field") }
+        @JsonSubTypes.Type(value = FieldNode.class, name = "Field")}
 )
 
-public interface MemberNode extends ASTNode {}
+public interface MemberNode extends ASTNode {
+}

src/main/java/ast/members/MethodNode.java

@@ -6,7 +6,7 @@ import ast.type.AccessModifierNode;
 import ast.type.type.*;
 import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 import visitor.Visitable;
 
 import java.util.ArrayList;
@@ -15,15 +15,16 @@ import java.util.Objects;
 
 public class MethodNode implements MemberNode, Visitable {
     public AccessModifierNode accesModifier;
-    private ITypeNode type;
+    public ITypeNode type;
     public Boolean voidType;
-    private String identifier;
+    public String identifier;
     public List<ParameterNode> parameters = new ArrayList<>();
     public BlockNode block;
 
-    public MethodNode() {}
+    public MethodNode() {
+    }
 
-    public MethodNode(String accessModifier, ITypeNode type, Boolean voidType, String identifier, BlockNode block){
+    public MethodNode(String accessModifier, ITypeNode type, Boolean voidType, String identifier, BlockNode block) {
         this.accesModifier = new AccessModifierNode(accessModifier);
         this.type = type;
         this.voidType = voidType;
@@ -39,14 +40,14 @@ public class MethodNode implements MemberNode, Visitable {
         return parameters;
     }
 
-    public boolean isSame(MethodNode methodNode){
+    public boolean isSame(MethodNode methodNode) {
         if (!(Objects.equals(this.identifier, methodNode.getIdentifier())) || type.equals(methodNode.type)
                 || getParameters().size() != methodNode.getParameters().size()) {
             return false;
         }
 
         for (int i = 0; i < this.getParameters().size(); i++) {
-            if (this.getParameters().get(i).type.equals(methodNode.getParameters().get(i).type)) {
+            if (!this.getParameters().get(i).type.equals(methodNode.getParameters().get(i).type)) {
                 return false;
             }
         }

src/main/java/ast/parameters/ParameterNode.java

@@ -3,7 +3,7 @@ package ast.parameters;
 import ast.ASTNode;
 import ast.type.type.*;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 import visitor.Visitable;
 
 public class ParameterNode implements ASTNode, Visitable {

src/main/java/ast/statementexpressions/AssignNode.java

@@ -1,8 +1,9 @@
 package ast.statementexpressions;
 
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class AssignNode implements IStatementExpressionNode {
     public AssignableNode assignable;
@@ -18,4 +19,9 @@ public class AssignNode implements IStatementExpressionNode {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
 }

src/main/java/ast/statementexpressions/AssignableNode.java

@@ -1,11 +1,14 @@
 package ast.statementexpressions;
 
 import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.type.type.ITypeNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class AssignableNode implements IStatementExpressionNode {
     public String identifier;
+    public ITypeNode typeNode;
 
     public MemberAccessNode memberAccess;
 
@@ -22,4 +25,8 @@ public class AssignableNode implements IStatementExpressionNode {
         return visitor.analyze(this);
     }
 
+    public void setTypeNode(ITypeNode typeNode) {
+        this.typeNode = typeNode;
+    }
+
 }

src/main/java/ast/statementexpressions/IStatementExpressionNode.java

@@ -2,4 +2,5 @@ package ast.statementexpressions;
 
 import ast.statements.IStatementNode;
 
-public interface IStatementExpressionNode extends IStatementNode {}
+public interface IStatementExpressionNode extends IStatementNode {
+}

src/main/java/ast/statementexpressions/NewDeclarationNode.java

@@ -1,8 +1,9 @@
 package ast.statementexpressions;
 
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -24,4 +25,9 @@ public class NewDeclarationNode implements IStatementExpressionNode {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
 }

src/main/java/ast/statementexpressions/crementexpressions/DecrementNode.java

@@ -2,10 +2,12 @@ package ast.statementexpressions.crementexpressions;
 
 import ast.statementexpressions.AssignableNode;
 import ast.statementexpressions.IStatementExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
+import visitor.Visitable;
 
-public class DecrementNode implements IStatementExpressionNode {
+public class DecrementNode implements IStatementExpressionNode, Visitable {
     public CrementType crementType;
     public AssignableNode assignableExpression;
 
@@ -19,4 +21,8 @@ public class DecrementNode implements IStatementExpressionNode {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
 }

src/main/java/ast/statementexpressions/crementexpressions/IncrementNode.java

@@ -2,10 +2,12 @@ package ast.statementexpressions.crementexpressions;
 
 import ast.statementexpressions.AssignableNode;
 import ast.statementexpressions.IStatementExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import visitor.Visitable;
+import semantic.TypeCheckResult;
 
-public class IncrementNode implements IStatementExpressionNode {
+public class IncrementNode implements IStatementExpressionNode, Visitable {
     public CrementType crementType;
     public AssignableNode assignableExpression;
 
@@ -19,4 +21,8 @@ public class IncrementNode implements IStatementExpressionNode {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
 }

src/main/java/ast/statementexpressions/methodcallstatementnexpressions/ChainedMethodNode.java

@@ -2,11 +2,15 @@ package ast.statementexpressions.methodcallstatementnexpressions;
 
 import ast.ASTNode;
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import semantic.TypeCheckResult;
+import visitor.Visitable;
 
 import java.util.ArrayList;
 import java.util.List;
 
-public class ChainedMethodNode implements ASTNode {
+public class ChainedMethodNode implements ASTNode, Visitable {
     public String identifier;
     public List<IExpressionNode> expressions = new ArrayList<>();
 
@@ -17,4 +21,9 @@ public class ChainedMethodNode implements ASTNode {
     public void addExpression(IExpressionNode expression) {
         expressions.add(expression);
     }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return null;
+    }
 }

src/main/java/ast/statementexpressions/methodcallstatementnexpressions/MethodCallNode.java

@@ -2,14 +2,17 @@ package ast.statementexpressions.methodcallstatementnexpressions;
 
 import ast.expressions.IExpressionNode;
 import ast.statements.IStatementNode;
+import ast.type.type.ITypeNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 import java.util.ArrayList;
 import java.util.List;
 
 public class MethodCallNode implements IStatementNode {
     public TargetNode target;
+    public ITypeNode type;
     public List<ChainedMethodNode> chainedMethods = new ArrayList<>();
     public String identifier;
     public List<IExpressionNode> parameters = new ArrayList<>();
@@ -32,4 +35,9 @@ public class MethodCallNode implements IStatementNode {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
 }

src/main/java/ast/statementexpressions/methodcallstatementnexpressions/TargetNode.java

@@ -3,8 +3,11 @@ package ast.statementexpressions.methodcallstatementnexpressions;
 import ast.ASTNode;
 import ast.expressions.unaryexpressions.MemberAccessNode;
 import ast.statementexpressions.NewDeclarationNode;
+import semantic.SemanticVisitor;
+import semantic.TypeCheckResult;
+import visitor.Visitable;
 
-public class TargetNode implements ASTNode {
+public class TargetNode implements ASTNode, Visitable {
     public Boolean thisTar;
     public MemberAccessNode memberAccess;
     public NewDeclarationNode newDeclaration;
@@ -25,4 +28,10 @@ public class TargetNode implements ASTNode {
     public TargetNode(String identifier) {
         this.identifier = identifier;
     }
+
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+
 }

src/main/java/ast/statements/BlockNode.java

@@ -1,8 +1,8 @@
 package ast.statements;
 
-import ast.ASTNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 import visitor.Visitable;
 
 import java.util.ArrayList;
@@ -11,7 +11,8 @@ import java.util.List;
 public class BlockNode implements IStatementNode, Visitable {
     public List<IStatementNode> statements = new ArrayList<>();
 
-    public BlockNode() {}
+    public BlockNode() {
+    }
 
     public void addStatement(IStatementNode statement) {
         statements.add(statement);
@@ -22,4 +23,9 @@ public class BlockNode implements IStatementNode, Visitable {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
 }

src/main/java/ast/statements/ElseNode.java

@@ -1,11 +1,11 @@
 package ast.statements;
 
-import ast.ASTNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class ElseNode implements IStatementNode {
-    BlockNode block;
+    public BlockNode block;
 
     public ElseNode(BlockNode block) {
         this.block = block;
@@ -14,6 +14,6 @@ public class ElseNode implements IStatementNode {
 
     @Override
     public TypeCheckResult accept(SemanticVisitor visitor) {
-        return null;
+        return visitor.analyze(this);
     }
 }

src/main/java/ast/statements/IfElseNode.java

@@ -1,16 +1,16 @@
 package ast.statements;
 
-import ast.ASTNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 import java.util.ArrayList;
 import java.util.List;
 
 public class IfElseNode implements IStatementNode {
-    IfNode ifStatement;
-    List<IfNode> elseIfStatements = new ArrayList<>();
-    ElseNode elseStatement;
+    public IfNode ifStatement;
+    public List<IfNode> elseIfStatements = new ArrayList<>();
+    public ElseNode elseStatement;
 
     public IfElseNode(IfNode ifStatement, ElseNode elseNode) {
         this.ifStatement = ifStatement;
@@ -21,8 +21,13 @@ public class IfElseNode implements IStatementNode {
         elseIfStatements.add(elseIfStament);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
     @Override
     public TypeCheckResult accept(SemanticVisitor visitor) {
-        return null;
+        return visitor.analyze(this);
     }
 }

src/main/java/ast/statements/IfNode.java

@@ -1,13 +1,12 @@
 package ast.statements;
 
-import ast.ASTNode;
 import ast.expressions.IExpressionNode;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class IfNode implements IStatementNode {
-    IExpressionNode expression;
-    BlockNode block;
+    public IExpressionNode expression;
+    public BlockNode block;
 
     public IfNode(IExpressionNode expression, BlockNode block) {
         this.expression = expression;
@@ -16,6 +15,6 @@ public class IfNode implements IStatementNode {
 
     @Override
     public TypeCheckResult accept(SemanticVisitor visitor) {
-        return null;
+        return visitor.analyze(this);
     }
 }

src/main/java/ast/statements/LocalVariableDeclarationNode.java

@@ -2,8 +2,9 @@ package ast.statements;
 
 import ast.expressions.IExpressionNode;
 import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class LocalVariableDeclarationNode implements IStatementNode {
     public ITypeNode type;
@@ -23,4 +24,9 @@ public class LocalVariableDeclarationNode implements IStatementNode {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
 }

src/main/java/ast/statements/ReturnNode.java

@@ -1,15 +1,16 @@
 package ast.statements;
 
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class ReturnNode implements IStatementNode {
     public IExpressionNode expression;
     public Boolean voidReturn = false;
 
     public ReturnNode(IExpressionNode expression) {
-        if(expression != null) {
+        if (expression != null) {
             this.expression = expression;
         } else {
             voidReturn = true;
@@ -21,4 +22,9 @@ public class ReturnNode implements IStatementNode {
         return visitor.analyze(this);
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
 }

src/main/java/ast/statements/WhileNode.java

@@ -1,13 +1,13 @@
 package ast.statements;
 
-import ast.ASTNode;
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public class WhileNode implements IStatementNode {
-    IExpressionNode expression;
-    BlockNode block;
+    public IExpressionNode expression;
+    public BlockNode block;
 
     public WhileNode(IExpressionNode expression, BlockNode block) {
         this.expression = expression;
@@ -15,12 +15,16 @@ public class WhileNode implements IStatementNode {
     }
 
     public void test() {
-        return;
 
     }
 
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
     @Override
     public TypeCheckResult accept(SemanticVisitor visitor) {
-        return null;
+        return visitor.analyze(this);
     }
 }

src/main/java/ast/type/AccessModifierNode.java

@@ -8,7 +8,7 @@ public class AccessModifierNode {
     }
 
     private void setModifier(String accessType) {
-        switch(accessType) {
+        switch (accessType) {
             case "public":
                 this.accessType = EnumAccessModifierNode.PUBLIC;
                 break;

src/main/java/ast/type/ValueNode.java

@@ -1,8 +1,12 @@
 package ast.type;
 
 import ast.ASTNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import semantic.TypeCheckResult;
+import visitor.Visitable;
 
-public class ValueNode implements ASTNode {
+public class ValueNode implements ASTNode, Visitable {
     public EnumValueNode valueType;
     public String value;
 
@@ -10,4 +14,14 @@ public class ValueNode implements ASTNode {
         this.valueType = valueType;
         this.value = value;
     }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
 }

src/main/java/ast/type/type/BaseType.java

@@ -2,7 +2,7 @@ package ast.type.type;
 
 public class BaseType implements ITypeNode {
 
-    private TypeEnum typeEnum;
+    public final TypeEnum typeEnum;
 
     public BaseType(TypeEnum typeEnum) {
         this.typeEnum = typeEnum;
@@ -21,8 +21,6 @@ public class BaseType implements ITypeNode {
         if (getClass() != obj.getClass())
             return false;
         BaseType other = (BaseType) obj;
-        if (typeEnum != other.typeEnum)
-            return false;
-        return true;
+        return typeEnum == other.typeEnum;
     }
 }

src/main/java/ast/type/type/ITypeNode.java

@@ -1,5 +1,4 @@
 package ast.type.type;
 
 public interface ITypeNode {
-
 }

src/main/java/ast/type/type/ReferenceType.java

@@ -1,8 +1,8 @@
 package ast.type.type;
 
-public class ReferenceType implements ITypeNode{
+public class ReferenceType implements ITypeNode {
 
-    private String identifier;
+    public final String identifier;
 
     public ReferenceType(String identifier) {
         this.identifier = identifier;
@@ -22,11 +22,8 @@ public class ReferenceType implements ITypeNode{
             return false;
         ReferenceType other = (ReferenceType) obj;
         if (identifier == null) {
-            if (other.identifier != null)
-                return false;
-        } else if (!identifier.equals(other.identifier))
-            return false;
-        return true;
+            return other.identifier == null;
+        } else return identifier.equals(other.identifier);
     }
 
 

src/main/java/ast/type/type/TypeEnum.java

@@ -4,6 +4,6 @@ public enum TypeEnum {
     VOID,
     INT,
     CHAR,
-    BOOL;
-
+    BOOL,
+    NULL
 }

src/main/java/bytecode/ByteCodeGenerator.java

@@ -2,21 +2,89 @@ package bytecode;
 
 import ast.ProgramNode;
 import ast.ClassNode;
+import ast.members.MainMethodNode;
+import ast.members.MemberNode;
 import bytecode.visitor.ProgramVisitor;
 
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.jar.JarOutputStream;
+import java.util.jar.Manifest;
+
 public class ByteCodeGenerator implements ProgramVisitor {
 
-  private final String outputDirectoryPath;
+    private JarOutputStream jarOutputStream;
+    private ByteArrayOutputStream byteArrayOutputStream;
+    private final String outputDirectory;
+    private final boolean generateJar;
+    private final boolean generateClassFiles;
 
-  public ByteCodeGenerator(String outputDirectoryPath) {
-    this.outputDirectoryPath = outputDirectoryPath;
-  }
-
-  @Override
-  public void visit(ProgramNode programNode) {
-    for (ClassNode classDeclarationNode : programNode.classes) {
-//      ClassCodeGen classCodeGen = new ClassCodeGen();
-//      classDeclarationNode.accept(classCodeGen);
+    public ByteCodeGenerator(String outputDirectory, boolean generateJar, boolean generateClassFiles) {
+        this.outputDirectory = outputDirectory;
+        this.generateJar = generateJar;
+        this.generateClassFiles = generateClassFiles;
+    }
+
+    @Override
+    public void visit(ProgramNode programNode) {
+        if(generateJar) {
+            byteArrayOutputStream = new ByteArrayOutputStream();
+            try {
+                Manifest manifest = new Manifest();
+                manifest.getMainAttributes().putValue("Manifest-Version", "1.0");
+                boolean foundMainClass = false;
+                for (ClassNode classNode : programNode.classes) {
+                    if (foundMainClass) {
+                        break;
+                    }
+                    for (MemberNode memberNode : classNode.members) {
+                        if (memberNode instanceof MainMethodNode) {
+                            manifest.getMainAttributes().putValue("Main-Class", classNode.identifier);
+                            foundMainClass = true;
+                            break;
+                        }
+                    }
+                }
+
+
+                jarOutputStream = new JarOutputStream(byteArrayOutputStream, manifest);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+
+            for (ClassNode classDeclarationNode : programNode.classes) {
+                ClassCodeGen classCodeGen = new ClassCodeGen(jarOutputStream, outputDirectory, generateJar, generateClassFiles);
+                classDeclarationNode.accept(classCodeGen);
+            }
+
+            try {
+                jarOutputStream.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+
+            saveJarFile(byteArrayOutputStream.toByteArray(), "output.jar");
+        } else {
+            for (ClassNode classDeclarationNode : programNode.classes) {
+                ClassCodeGen classCodeGen = new ClassCodeGen(jarOutputStream, outputDirectory, generateJar, generateClassFiles);
+                classDeclarationNode.accept(classCodeGen);
+            }
+        }
+    }
+
+    private void saveJarFile(byte[] jarBytes, String jarFileName) {
+        File directory = new File(outputDirectory);
+        if (!directory.exists()) {
+            directory.mkdirs();
+        }
+
+        File jarFile = new File(directory, jarFileName);
+        try (FileOutputStream fos = new FileOutputStream(jarFile)) {
+            fos.write(jarBytes);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
-  }
 }

src/main/java/bytecode/ClassCodeGen.java

@@ -10,26 +10,35 @@ import bytecode.visitor.ClassVisitor;
 import java.io.File;
 
 import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.Opcodes;
 
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.util.jar.JarEntry;
+import java.util.jar.JarOutputStream;
 
 
 public class ClassCodeGen implements ClassVisitor {
-    private Mapper mapper;
+    private final Mapper mapper;
     private ClassWriter classWriter;
-    private final String outputDirectoryPath;
+    private final JarOutputStream jarOutputStream;
+    private final String outputDirectory;
+    private final boolean generateJar;
+    private final boolean generateClassFiles;
 
-    public ClassCodeGen(String outputDirectoryPath) {
-        this.outputDirectoryPath = outputDirectoryPath;
-        mapper = new Mapper();
+    public ClassCodeGen(JarOutputStream jarOutputStream, String outputDirectory, boolean generateJar, boolean generateClassFiles) {
+        this.mapper = new Mapper();
+        this.jarOutputStream = jarOutputStream;
+        this.outputDirectory = outputDirectory;
+        this.generateJar = generateJar;
+        this.generateClassFiles = generateClassFiles;
     }
 
     @Override
     public void visit(ClassNode classNode) {
         classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
-//        classWriter.visit(Opcodes.V1_5, mapper.mapAccessTypeToOpcode(classNode.accessType), classNode.identifier, null,
-//                "java/lang/Object", null);
+        classWriter.visit(Opcodes.V1_5, mapper.mapAccessTypeToOpcode(classNode.accessType), classNode.identifier, null,
+                "java/lang/Object", null);
 
         for (MemberNode memberNode : classNode.members) {
             if (memberNode instanceof FieldNode) {
@@ -40,29 +49,31 @@ public class ClassCodeGen implements ClassVisitor {
             }
         }
 
-        classWriter.visitEnd();
-        printIntoClassFile(classWriter.toByteArray(), classNode.identifier);
+        if (generateJar) {
+            writeToJar(classWriter.toByteArray(), classNode.identifier);
+        }
+        if (generateClassFiles) {
+            printIntoClassFile(classWriter.toByteArray(), classNode.identifier, outputDirectory);
+        }
 
         classWriter.visitEnd();
     }
 
     @Override
     public void visit(FieldNode fieldNode) {
-        if(fieldNode.type instanceof BaseType baseTypeNode){
-//            classWriter.visitField(mapper.mapAccessTypeToOpcode(fieldNode.accessTypeNode), fieldNode.identifier, mapper.getTypeChar(baseTypeNode.enumType), null, null );
+        if (fieldNode.type instanceof BaseType) {
+            classWriter.visitField(mapper.mapAccessTypeToOpcode(fieldNode.accessTypeNode), fieldNode.identifier, mapper.getTypeChar((BaseType) fieldNode.type), null, null);
         }
         classWriter.visitEnd();
     }
 
-    private void printIntoClassFile(byte[] byteCode, String name) {
-        // String outputDirectoryPath = "src/main/resources/output";
-        // System.out.println("Output directory path: " + outputDirectoryPath);
-        File directory = new File(outputDirectoryPath);
+    private void printIntoClassFile(byte[] byteCode, String name, String outputDirectory) {
+        File directory = new File(outputDirectory);
         if (!directory.exists()) {
             directory.mkdirs();
         }
 
-        String filePath = outputDirectoryPath + "/" + name + ".class";
+        String filePath = outputDirectory + "/" + name + ".class";
         try {
             FileOutputStream fileOutputStream = new FileOutputStream(filePath);
             fileOutputStream.write(byteCode);
@@ -71,4 +82,15 @@ public class ClassCodeGen implements ClassVisitor {
             e.printStackTrace();
         }
     }
+
+    private void writeToJar(byte[] byteCode, String className) {
+        try {
+            JarEntry jarEntry = new JarEntry(className + ".class");
+            jarOutputStream.putNextEntry(jarEntry);
+            jarOutputStream.write(byteCode);
+            jarOutputStream.closeEntry();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
 }

src/main/java/bytecode/Mapper.java

@@ -1,41 +1,65 @@
 package bytecode;
 
+import ast.parameters.ParameterNode;
 import ast.type.*;
+import ast.type.type.BaseType;
+import ast.type.type.ITypeNode;
+import ast.type.type.ReferenceType;
+import ast.type.type.TypeEnum;
+import org.objectweb.asm.Opcodes;
+
+import java.util.List;
 
 public class Mapper {
-//    public int mapAccessTypeToOpcode(AccessModifierNode type) {
-//        switch (type.enumAccessTypeNode) {
-//            case EnumAccessTypeNode.PUBLIC:
-//                return Opcodes.ACC_PUBLIC;
-//            case EnumAccessTypeNode.PRIVATE:
-//                return Opcodes.ACC_PRIVATE;
-//        }
-//        return 0;
-//    }
+    public int mapAccessTypeToOpcode(AccessModifierNode accessModifierNode) {
+        switch (accessModifierNode.accessType) {
+            case EnumAccessModifierNode.PUBLIC:
+                return Opcodes.ACC_PUBLIC;
+            case EnumAccessModifierNode.PRIVATE:
+                return Opcodes.ACC_PRIVATE;
+            case EnumAccessModifierNode.PUBLIC_STATIC:
+                return Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC;
+            case EnumAccessModifierNode.PRIVATE_STATIC:
+                return Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC;
+        }
+        return 0;
+    }
 
-//    public String generateMethodDescriptor(BaseTypeNode baseTypeNode, ParameterListNode parameterListNode) {
-//        String descriptor = "(";
-//        for(ParameterNode parameterNode : parameterListNode.parameters) {
-//            descriptor += getTypeChar(EnumTypeNode.INT);
-//        }
-//        descriptor += ")";
-//        descriptor += getTypeChar(baseTypeNode.enumType);
-//        return descriptor;
-//    }
+    public String generateMethodDescriptor(ITypeNode type, List<ParameterNode> parameters) {
+        String descriptor = "(";
+        for (ParameterNode parameterNode : parameters) {
+            if(parameterNode.type instanceof BaseType) {
+                descriptor += getTypeChar((BaseType) parameterNode.type);
+            } else {
+                ReferenceType referenceType = (ReferenceType) parameterNode.type;
+                descriptor += "L" + referenceType.getIdentifier() + ";";
+            }
+        }
+        descriptor += ")";
+        if(type instanceof BaseType) {
+            descriptor += getTypeChar((BaseType) type);
+        } else if(type instanceof ReferenceType) {
+            descriptor += "L" + ((ReferenceType) type).getIdentifier() +";";
+        }
+        return descriptor;
+    }
 
-//    public String getTypeChar(TypeEnum enumTypeNode) {
-//        String typeChar = "";
-//        switch (enumTypeNode) {
-//            case TypeEnum.INT:
-//                typeChar = "I";
-//                break;
-//            case TypeEnum.CHAR:
-//                typeChar = "C";
-//                break;
-//            case TypeEnum.BOOLEAN:
-//                typeChar = "Z";
-//                break;
-//        }
-//        return typeChar;
-//    }
+    public String getTypeChar(BaseType type) {
+        String typeChar = "";
+        switch (type.getTypeEnum()) {
+            case TypeEnum.INT:
+                typeChar = "I";
+                break;
+            case TypeEnum.CHAR:
+                typeChar = "C";
+                break;
+            case TypeEnum.BOOL:
+                typeChar = "Z";
+                break;
+            case TypeEnum.VOID:
+                typeChar = "V";
+                break;
+        }
+        return typeChar;
+    }
 }

src/main/java/bytecode/MethodCodeGen.java

@@ -1,9 +1,32 @@
 package bytecode;
 
+import ast.expressions.IExpressionNode;
+import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.NotNode;
+import ast.expressions.unaryexpressions.UnaryNode;
 import ast.members.ConstructorNode;
+import ast.members.MainMethodNode;
 import ast.members.MethodNode;
+import ast.parameters.ParameterNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.NewDeclarationNode;
+import ast.statementexpressions.crementexpressions.CrementType;
+import ast.statementexpressions.crementexpressions.DecrementNode;
+import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statements.*;
+import ast.type.AccessModifierNode;
+import ast.type.EnumAccessModifierNode;
+import ast.type.ValueNode;
+import ast.type.type.BaseType;
+import ast.type.type.ReferenceType;
+import ast.type.type.TypeEnum;
 import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.Label;
 import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -13,82 +36,709 @@ import static org.objectweb.asm.Opcodes.*;
 
 public class MethodCodeGen implements bytecode.visitor.MethodVisitor {
 
-    private ClassWriter classWriter;
-    private Mapper mapper;
+    private final ClassWriter classWriter;
+    private final Mapper mapper;
     private MethodVisitor methodVisitor;
 
-    private List<String> localVaribales;
+    private final List<String> localVariables;
 
     public MethodCodeGen(ClassWriter classWriter) {
         this.classWriter = classWriter;
         mapper = new Mapper();
-        localVaribales = new ArrayList<>();
+        localVariables = new ArrayList<>();
     }
 
+
+    // Method nodes
+
     @Override
     public void visit(ConstructorNode constructorNode) {
-//        methodVisitor =
-//                classWriter.visitMethod(mapper.mapAccessTypeToOpcode(constructorNode.visibility),
-//                        "<init>",
-//                        "()V",
-//                        null,
-//                        null);
+        methodVisitor =
+                classWriter.visitMethod(mapper.mapAccessTypeToOpcode(constructorNode.accesModifier),
+                        "<init>",
+                        mapper.generateMethodDescriptor(new BaseType(TypeEnum.VOID), constructorNode.parameters),
+                        null,
+                        null);
+
         methodVisitor.visitCode();
+        localVariables.add("this");
+        // Add all method parameters to localVariables
+        for (ParameterNode parameterNode : constructorNode.parameters) {
+            localVariables.add(parameterNode.identifier);
+        }
+
         methodVisitor.visitVarInsn(ALOAD, 0);
         methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
-        methodVisitor.visitInsn(RETURN);
-        methodVisitor.visitMaxs(1, 1);
+
+        // Visit all statements
+        for (IStatementNode statementNode : constructorNode.block.statements) {
+            statementNode.accept(this);
+        }
+
+        methodVisitor.visitMaxs(0, 0);
+        methodVisitor.visitEnd();
+    }
+
+    @Override
+    public void visit(MainMethodNode mainMethodNode) {
+        AccessModifierNode accessModifierNode = new AccessModifierNode("");
+        accessModifierNode.accessType = EnumAccessModifierNode.PUBLIC_STATIC;
+        methodVisitor = classWriter.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC,
+                "main",
+                "([Ljava/lang/String;)V",
+                null,
+                null);
+
+        methodVisitor.visitCode();
+        localVariables.add("this");
+        localVariables.add("args");
+
+        // Visit all statements
+        for (IStatementNode statementNode : mainMethodNode.block.statements) {
+            statementNode.accept(this);
+        }
+
+        methodVisitor.visitMaxs(0, 0);
         methodVisitor.visitEnd();
     }
 
     @Override
     public void visit(MethodNode methodNode) {
-//        if (methodNode.type instanceof BaseTypeNode baseTypeNode) {
-//            methodVisitor = classWriter.visitMethod(mapper.mapAccessTypeToOpcode(methodNode.visibility),
-//                    methodNode.identifier,
-//                    mapper.generateMethodDescriptor(baseTypeNode, methodNode.parameters),
-//                    null,
-//                    null);
+        methodVisitor = classWriter.visitMethod(mapper.mapAccessTypeToOpcode(methodNode.accesModifier),
+                methodNode.getIdentifier(),
+                mapper.generateMethodDescriptor(methodNode.getType(), methodNode.parameters),
+                null,
+                null);
 
-            methodVisitor.visitCode();
-            localVaribales.add("this");
-//            for (ParameterNode parameterNode : methodNode.parameters.parameters) {
-//                localVaribales.add(parameterNode.identifier);
-//            }
+        methodVisitor.visitCode();
+        localVariables.add("this");
+        // Add all method parameters to localVariables
+        for (ParameterNode parameterNode : methodNode.parameters) {
+            localVariables.add(parameterNode.identifier);
+        }
 
-            //test();
-            methodVisitor.visitMaxs(1, localVaribales.size());
-            methodVisitor.visitEnd();
-//        }
+        // Visit all statements
+        for (IStatementNode statementNode : methodNode.block.statements) {
+            statementNode.accept(this);
+        }
+
+        methodVisitor.visitMaxs(0, 0);
+        methodVisitor.visitEnd();
     }
 
-//    public void test() {
-//        Label start = new Label();
-//        Label loop = new Label();
-//        Label end = new Label();
-//        methodVisitor.visitLabel(start);
-//        //methodVisitor.visitVarInsn(Opcodes.ICONST_M1, 99);
-//        //methodVisitor.visitInsn(Opcodes.ICONST_5);
-//        methodVisitor.visitLdcInsn(99);
-//        // methodVisitor.visitInsn(Opcodes.ICONST_0);
-//        //methodVisitor.visitVarInsn(Opcodes.ILOAD, 2);
-//        methodVisitor.visitVarInsn(Opcodes.ISTORE, 1);
-//        methodVisitor.visitLabel(loop);
-//        methodVisitor.visitVarInsn(Opcodes.ILOAD, 1);
-//        methodVisitor.visitInsn(Opcodes.ICONST_5);
-//        methodVisitor.visitJumpInsn(Opcodes.IF_ICMPGE, end);
-//        methodVisitor.visitFieldInsn(Opcodes.GETSTATIC,
-//                "java/lang/System", "out",
-//                "Ljava/io/PrintStream;");
-//        methodVisitor.visitLdcInsn("Bytecode");
-//        methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL,
-//                "java/io/PrintStream", "println",
-//                "(Ljava/lang/String;)V", false);
-//        methodVisitor.visitIincInsn(1, 1);
-//        methodVisitor.visitJumpInsn(Opcodes.GOTO, loop);
-//        methodVisitor.visitLabel(end);
-//        methodVisitor.visitVarInsn(Opcodes.ILOAD, 1);
-//        methodVisitor.visitInsn(Opcodes.IRETURN);
-//        methodVisitor.visitEnd();
-//    }
+
+    // Binary expressions
+
+    @Override
+    public void visit(BinaryNode binaryNode) {
+        binaryNode.accept(this);
+    }
+
+    @Override
+    public void visit(CalculationNode calculationNode) {
+        if (calculationNode.calculationExpression != null) {
+            calculationNode.calculationExpression.accept(this);
+        }
+        if (calculationNode.dotExpression != null) {
+            calculationNode.dotExpression.accept(this);
+        }
+        if (calculationNode.operator != null) {
+            switch (calculationNode.operator) {
+                case PLUS:
+                    methodVisitor.visitInsn(IADD);
+                    break;
+                case MINUS:
+                    methodVisitor.visitInsn(ISUB);
+                    break;
+            }
+        }
+    }
+
+    @Override
+    public void visit(DotNode dotNode) {
+        if (dotNode.dotExpression != null) {
+            dotNode.dotExpression.accept(this);
+        }
+        if (dotNode.dotSubtractionExpression != null) {
+            dotNode.dotSubtractionExpression.accept(this);
+        }
+        if (dotNode.operator != null) {
+            switch (dotNode.operator) {
+                case DIV:
+                    methodVisitor.visitInsn(IDIV);
+                    break;
+                case MULT:
+                    methodVisitor.visitInsn(IMUL);
+                    break;
+                case MOD:
+                    methodVisitor.visitInsn(IREM);
+                    break;
+            }
+        }
+    }
+
+    @Override
+    public void visit(DotSubtractionNode dotSubtractionNode) {
+        if (dotSubtractionNode.value != null) {
+            dotSubtractionNode.value.accept(this);
+        } else if (dotSubtractionNode.identifier != null) {
+            methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(dotSubtractionNode.identifier));
+        } else if (dotSubtractionNode.memberAccess != null) {
+            dotSubtractionNode.memberAccess.accept(this);
+        } else if (dotSubtractionNode.methodCall != null) {
+            dotSubtractionNode.methodCall.accept(this);
+        } else if (dotSubtractionNode.calculationExpression != null) {
+            dotSubtractionNode.calculationExpression.accept(this);
+        }
+    }
+
+    @Override
+    public void visit(NonCalculationNode nonCalculationNode) {
+        Label labelFalse = new Label();
+        Label labelTrue = new Label();
+        switch (nonCalculationNode.operator) {
+            case AND:
+                nonCalculationNode.unaryExpression.accept(this);
+                methodVisitor.visitJumpInsn(IFEQ, labelFalse); // Value compared to 0 (false)
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IFEQ, labelFalse);
+                break;
+            case OR:
+                nonCalculationNode.unaryExpression.accept(this);
+                methodVisitor.visitJumpInsn(IFNE, labelTrue);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IFEQ, labelFalse);
+                break;
+            case GREATER:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPLE, labelFalse);
+                break;
+            case LESS:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPGE, labelFalse);
+                break;
+            case GREATER_EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPLT, labelFalse);
+                break;
+            case LESS_EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPGT, labelFalse);
+                break;
+            case EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                if (nonCalculationNode.unaryExpression.getType() instanceof BaseType && nonCalculationNode.expression.getType() instanceof BaseType) {
+                    methodVisitor.visitJumpInsn(IF_ICMPNE, labelFalse);
+                } else {
+                    methodVisitor.visitJumpInsn(IF_ACMPNE, labelFalse);
+                }
+                break;
+            case NOT_EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                if (nonCalculationNode.unaryExpression.getType() instanceof BaseType && nonCalculationNode.expression.getType() instanceof BaseType) {
+                    methodVisitor.visitJumpInsn(IF_ICMPEQ, labelFalse);
+                } else {
+                    methodVisitor.visitJumpInsn(IF_ACMPEQ, labelFalse);
+                }
+                break;
+        }
+
+        Label labelEndLogicalExpression = new Label();
+
+        methodVisitor.visitLabel(labelTrue);
+        methodVisitor.visitInsn(ICONST_1); // true
+        methodVisitor.visitJumpInsn(GOTO, labelEndLogicalExpression);
+
+        methodVisitor.visitLabel(labelFalse);
+        methodVisitor.visitInsn(ICONST_0); // false
+
+        methodVisitor.visitLabel(labelEndLogicalExpression);
+    }
+
+
+    // Unary expressions
+
+    @Override
+    public void visit(MemberAccessNode memberAccessNode) {
+        // Only used to get, not to put
+        int localVarIndex = localVariables.indexOf("memberAccessNode.identifier"); // TODO
+        if (localVarIndex >= 0) { // local var object
+            methodVisitor.visitVarInsn(ALOAD, localVarIndex);
+        } else { // this field
+            methodVisitor.visitVarInsn(ALOAD, 0);
+        }
+
+        if (memberAccessNode.getTypeNode() instanceof BaseType) {
+            methodVisitor.visitFieldInsn(GETFIELD, memberAccessNode.identifiers.get(0), memberAccessNode.identifiers.get(1), mapper.getTypeChar((BaseType) memberAccessNode.getTypeNode()));
+        } else if (memberAccessNode.getTypeNode() instanceof ReferenceType) {
+            methodVisitor.visitFieldInsn(GETFIELD, memberAccessNode.identifiers.get(0), memberAccessNode.identifiers.get(1), "L" + ((ReferenceType) memberAccessNode.getTypeNode()).getIdentifier() + ";");
+        }
+    }
+
+    @Override
+    public void visit(NotNode notNode) {
+        Label labelFalse = new Label();
+        Label labelTrue = new Label();
+
+        notNode.expression.accept(this);
+        methodVisitor.visitJumpInsn(Opcodes.IFNE, labelFalse); // false if value is true (value != 0)
+
+        Label labelEndLogicalExpression = new Label();
+
+        methodVisitor.visitLabel(labelTrue);
+        methodVisitor.visitInsn(ICONST_1); // true
+        methodVisitor.visitJumpInsn(GOTO, labelEndLogicalExpression);
+
+        methodVisitor.visitLabel(labelFalse);
+        methodVisitor.visitInsn(ICONST_0); // false
+
+        methodVisitor.visitLabel(labelEndLogicalExpression);
+    }
+
+    @Override
+    public void visit(UnaryNode unaryNode) {
+        if (unaryNode.thisExp != null) {
+            methodVisitor.visitVarInsn(ALOAD, 0); // this
+        } else if (unaryNode.memberAccess != null) {
+            unaryNode.memberAccess.setTypeNode(unaryNode.getType());
+            unaryNode.memberAccess.accept(this);
+        } else if (unaryNode.value != null) {
+            unaryNode.value.accept(this);
+        } else if (unaryNode.notExpression != null) {
+            unaryNode.notExpression.accept(this);
+        } else if (unaryNode.statement != null) {
+            unaryNode.statement.accept(this);
+        } else if (unaryNode.expression != null) {
+            unaryNode.expression.accept(this);
+        } else if (unaryNode.identifier != null) {
+            methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(unaryNode.identifier));
+        }
+    }
+
+
+    // Statements
+
+    @Override
+    public void visit(BlockNode blockNode) {
+        for (IStatementNode statementNode : blockNode.statements) {
+            statementNode.accept(this);
+        }
+    }
+
+    @Override
+    public void visit(IfElseNode ifElseNode) {
+        Label elseLabel = new Label();
+        Label endLabel = new Label();
+
+        Label[] elseIfLabels = new Label[ifElseNode.elseIfStatements.size()];
+        for (int i = 0; i < ifElseNode.elseIfStatements.size(); i++) {
+            elseIfLabels[i] = new Label();
+        }
+
+        ifElseNode.ifStatement.expression.accept(this);
+        if (ifElseNode.elseIfStatements.isEmpty()) {
+            // No else if
+            methodVisitor.visitJumpInsn(IFEQ, elseLabel);
+        } else {
+            // else if statements
+            methodVisitor.visitJumpInsn(IFEQ, elseIfLabels[0]);
+        }
+
+        ifElseNode.ifStatement.block.accept(this); // accept if block
+
+        methodVisitor.visitJumpInsn(GOTO, endLabel);
+
+        for (int i = 0; i < ifElseNode.elseIfStatements.size(); i++) {
+            methodVisitor.visitLabel(elseIfLabels[i]);
+            ifElseNode.elseIfStatements.get(i).expression.accept(this);
+            if (i + 1 < elseIfLabels.length) {
+                // at least one more else if
+                methodVisitor.visitJumpInsn(IFEQ, elseIfLabels[i + 1]);
+            } else {
+                methodVisitor.visitJumpInsn(IFEQ, elseLabel);
+            }
+            ifElseNode.elseIfStatements.get(i).block.accept(this);
+            methodVisitor.visitJumpInsn(GOTO, endLabel);
+        }
+
+        if (ifElseNode.elseStatement != null) {
+            methodVisitor.visitLabel(elseLabel);
+            ifElseNode.elseStatement.block.accept(this);
+        } else {
+            methodVisitor.visitLabel(elseLabel);
+        }
+
+        methodVisitor.visitLabel(endLabel);
+    }
+
+    @Override
+    public void visit(LocalVariableDeclarationNode localVariableDeclarationNode) {
+        if (localVariableDeclarationNode.expression != null) {
+            // Process expression
+            localVariableDeclarationNode.expression.accept(this);
+
+            if (localVariableDeclarationNode.expression instanceof UnaryNode) {
+                UnaryNode unaryNode = (UnaryNode) localVariableDeclarationNode.expression;
+                if (unaryNode.statement instanceof IncrementNode) {
+                    IncrementNode incrementNode = (IncrementNode) unaryNode.statement;
+                    incrementNode.assignableExpression.typeNode = unaryNode.type;
+                    loadIncrement(incrementNode);
+                } else if (unaryNode.statement instanceof DecrementNode) {
+                    DecrementNode decrementNode = (DecrementNode) unaryNode.statement;
+                    decrementNode.assignableExpression.typeNode = unaryNode.type;
+                    loadDecrement(decrementNode);
+                }
+            }
+
+            // add local var to list if not in list
+            if (!localVariables.contains(localVariableDeclarationNode.identifier)) {
+                localVariables.add(localVariableDeclarationNode.identifier);
+            }
+            if (localVariableDeclarationNode.type instanceof BaseType) {
+                methodVisitor.visitVarInsn(ISTORE, localVariables.indexOf(localVariableDeclarationNode.identifier));
+            } else if (localVariableDeclarationNode.type instanceof ReferenceType) {
+                methodVisitor.visitVarInsn(ASTORE, localVariables.indexOf(localVariableDeclarationNode.identifier));
+            }
+        } else {
+            // Local var declaration
+            if (!localVariables.contains(localVariableDeclarationNode.identifier)) {
+                localVariables.add(localVariableDeclarationNode.identifier);
+            }
+        }
+    }
+
+    @Override
+    public void visit(AssignNode assignNode) {
+        if (assignNode.assignable.memberAccess != null) { // this / object
+            assignNode.assignable.memberAccess.setTypeNode(assignNode.assignable.typeNode);
+            if (assignNode.expression instanceof UnaryNode) {
+                UnaryNode unaryNode = (UnaryNode) assignNode.expression;
+                if (unaryNode.statement instanceof IncrementNode) {
+                    IncrementNode incrementNode = (IncrementNode) unaryNode.statement;
+                    if (incrementNode.crementType.equals(CrementType.PREFIX)) { // ++i
+                        incrementNode.accept(this); // crement
+                        fieldOrObjectVarCrementAssign(assignNode); // assign
+                    } else { // i++
+                        fieldOrObjectVarCrementAssign(assignNode); // assign
+                        incrementNode.accept(this); // crement
+                    }
+                } else if (unaryNode.statement instanceof DecrementNode) {
+                    DecrementNode decrementNode = (DecrementNode) unaryNode.statement;
+                    if (decrementNode.crementType.equals(CrementType.PREFIX)) {
+                        decrementNode.accept(this); // crement
+                        fieldOrObjectVarCrementAssign(assignNode); // assign
+                    } else {
+                        fieldOrObjectVarCrementAssign(assignNode); // assign
+                        decrementNode.accept(this); // crement
+                    }
+                }
+            } else {
+                assignFieldOrObjectVar(assignNode);
+            }
+        } else { // local var
+            if (assignNode.expression instanceof UnaryNode) {
+                UnaryNode unaryNode = (UnaryNode) assignNode.expression;
+                if (unaryNode.statement instanceof IncrementNode || unaryNode.statement instanceof DecrementNode) {
+                    localVarCrementAssign(assignNode);
+                }
+            } else {
+                assignNode.expression.accept(this);
+                assignLocalVar(assignNode);
+            }
+        }
+    }
+
+    private void loadIncrement(IncrementNode incrementNode) {
+        AssignableNode assignableNode = incrementNode.assignableExpression;
+        if (assignableNode.memberAccess != null) {
+            assignableNode.memberAccess.accept(this);
+        } else {
+            if (assignableNode.typeNode instanceof BaseType) {
+                methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(assignableNode.identifier));
+            } else if (assignableNode.typeNode instanceof ReferenceType) {
+                methodVisitor.visitVarInsn(ALOAD, localVariables.indexOf(assignableNode.identifier));
+            }
+        }
+    }
+
+    private void loadDecrement(DecrementNode decrementNode) {
+        AssignableNode assignableNode = decrementNode.assignableExpression;
+        if (assignableNode.memberAccess != null) {
+            assignableNode.memberAccess.accept(this);
+        } else {
+            if (assignableNode.typeNode instanceof BaseType) {
+                methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(assignableNode.identifier));
+            } else if (assignableNode.typeNode instanceof ReferenceType) {
+                methodVisitor.visitVarInsn(ALOAD, localVariables.indexOf(assignableNode.identifier));
+            }
+        }
+    }
+
+    private void assignLocalVar(AssignNode assignNode) {
+        if (!localVariables.contains(assignNode.assignable.identifier)) {
+            localVariables.add(assignNode.assignable.identifier);
+        }
+
+        if (assignNode.expression.getType() instanceof BaseType) {
+            methodVisitor.visitVarInsn(ISTORE, localVariables.indexOf(assignNode.assignable.identifier));
+        } else if (assignNode.expression.getType() instanceof ReferenceType) {
+            methodVisitor.visitVarInsn(ASTORE, localVariables.indexOf(assignNode.assignable.identifier));
+        }
+    }
+
+    private void assignFieldOrObjectVar(AssignNode assignNode) {
+        int localVarIndex = localVariables.indexOf(assignNode.assignable.identifier);
+        if (localVarIndex >= 0) { // object
+            methodVisitor.visitVarInsn(ALOAD, localVarIndex);
+        } else if (assignNode.assignable.memberAccess.thisExpr) { // this
+            methodVisitor.visitVarInsn(ALOAD, 0);
+        } else {
+            localVariables.add(assignNode.assignable.identifier);
+        }
+
+        assignNode.expression.accept(this);
+
+        if (assignNode.expression.getType() instanceof BaseType) {
+            methodVisitor.visitFieldInsn(PUTFIELD, assignNode.assignable.memberAccess.identifiers.get(0), assignNode.assignable.memberAccess.identifiers.get(1), mapper.getTypeChar((BaseType) assignNode.expression.getType()));
+        } else if (assignNode.expression.getType() instanceof ReferenceType) {
+            ReferenceType referenceType = (ReferenceType) assignNode.expression.getType();
+            methodVisitor.visitFieldInsn(PUTFIELD, assignNode.assignable.memberAccess.identifiers.get(0), assignNode.assignable.memberAccess.identifiers.get(1), "L" + referenceType.getIdentifier() + ";");
+        }
+    }
+
+    private void localVarCrementAssign(AssignNode assignNode) {
+        UnaryNode unaryNode = (UnaryNode) assignNode.expression;
+        if (unaryNode.statement instanceof IncrementNode) {
+            IncrementNode incrementNode = (IncrementNode) unaryNode.statement;
+            if (incrementNode.crementType.equals(CrementType.PREFIX)) { // ++i
+                incrementNode.accept(this);
+                incrementNode.assignableExpression.typeNode = unaryNode.getType();
+                loadIncrement(incrementNode);
+                assignLocalVar(assignNode);
+            } else { // i++
+                incrementNode.assignableExpression.typeNode = unaryNode.getType();
+                loadIncrement(incrementNode);
+                assignLocalVar(assignNode);
+                incrementNode.accept(this);
+            }
+        } else if (unaryNode.statement instanceof DecrementNode) {
+            DecrementNode decrementNode = (DecrementNode) unaryNode.statement;
+            if (decrementNode.crementType.equals(CrementType.PREFIX)) {
+                decrementNode.accept(this);
+                decrementNode.assignableExpression.typeNode = unaryNode.getType();
+                loadDecrement(decrementNode);
+                assignLocalVar(assignNode);
+            } else {
+                decrementNode.assignableExpression.typeNode = unaryNode.getType();
+                loadDecrement(decrementNode);
+                assignLocalVar(assignNode);
+                decrementNode.accept(this);
+            }
+        }
+    }
+
+    private void fieldOrObjectVarCrementAssign(AssignNode assignNode) {
+        int localVarIndex = localVariables.indexOf(assignNode.assignable.identifier);
+        if (localVarIndex >= 0) { // object
+            methodVisitor.visitVarInsn(ALOAD, localVarIndex);
+        } else if (assignNode.assignable.memberAccess.thisExpr) { // field
+            methodVisitor.visitVarInsn(ALOAD, 0);
+        } else {
+            localVariables.add(assignNode.assignable.identifier);
+        }
+
+        UnaryNode unaryNode = (UnaryNode) assignNode.expression;
+        if (unaryNode.statement instanceof IncrementNode) {
+            IncrementNode incrementNode = (IncrementNode) unaryNode.statement;
+            incrementNode.assignableExpression.typeNode = unaryNode.getType();
+            loadIncrement((incrementNode));
+        } else if (unaryNode.statement instanceof DecrementNode) {
+            DecrementNode decrementNode = (DecrementNode) unaryNode.statement;
+            decrementNode.assignableExpression.typeNode = unaryNode.getType();
+            loadDecrement(decrementNode);
+        }
+
+        if (assignNode.expression.getType() instanceof BaseType) {
+            methodVisitor.visitFieldInsn(PUTFIELD, assignNode.assignable.memberAccess.identifiers.get(0), assignNode.assignable.memberAccess.identifiers.get(1), mapper.getTypeChar((BaseType) assignNode.expression.getType()));
+        } else if (assignNode.expression.getType() instanceof ReferenceType) {
+            ReferenceType referenceType = (ReferenceType) assignNode.expression.getType();
+            methodVisitor.visitFieldInsn(PUTFIELD, assignNode.assignable.memberAccess.identifiers.get(0), assignNode.assignable.memberAccess.identifiers.get(1), "L" + referenceType.getIdentifier() + ";");
+        }
+    }
+
+    @Override
+    public void visit(IncrementNode incrementNode) {
+        if (incrementNode.assignableExpression.memberAccess != null) { // Object var / field
+            int localVarIndex = localVariables.indexOf(incrementNode.assignableExpression.identifier);
+            if (localVarIndex >= 0) { // object
+                methodVisitor.visitVarInsn(ALOAD, localVarIndex);
+            } else { // this
+                methodVisitor.visitVarInsn(ALOAD, 0);
+            }
+            if (incrementNode.assignableExpression.memberAccess.getTypeNode() instanceof BaseType) {
+                methodVisitor.visitFieldInsn(GETFIELD, incrementNode.assignableExpression.memberAccess.identifiers.get(0), incrementNode.assignableExpression.memberAccess.identifiers.get(1), mapper.getTypeChar((BaseType) incrementNode.assignableExpression.memberAccess.getTypeNode()));
+            } else if (incrementNode.assignableExpression.memberAccess.getTypeNode() instanceof ReferenceType) {
+                methodVisitor.visitFieldInsn(GETFIELD, incrementNode.assignableExpression.memberAccess.identifiers.get(0), incrementNode.assignableExpression.memberAccess.identifiers.get(1), "L" + (((ReferenceType) incrementNode.assignableExpression.memberAccess.getTypeNode()).getIdentifier() + ";"));
+            }
+            methodVisitor.visitInsn(ICONST_1);
+            methodVisitor.visitInsn(IADD);
+            if (incrementNode.assignableExpression.memberAccess.getTypeNode() instanceof BaseType) {
+                methodVisitor.visitFieldInsn(PUTFIELD, incrementNode.assignableExpression.memberAccess.identifiers.get(0), incrementNode.assignableExpression.memberAccess.identifiers.get(1), mapper.getTypeChar((BaseType) incrementNode.assignableExpression.memberAccess.getTypeNode()));
+            } else if (incrementNode.assignableExpression.memberAccess.getTypeNode() instanceof ReferenceType) {
+                methodVisitor.visitFieldInsn(PUTFIELD, incrementNode.assignableExpression.memberAccess.identifiers.get(0), incrementNode.assignableExpression.memberAccess.identifiers.get(1), "L" + (((ReferenceType) incrementNode.assignableExpression.memberAccess.getTypeNode()).getIdentifier() + ";"));
+            }
+        } else { // local var
+            methodVisitor.visitIincInsn(localVariables.indexOf(incrementNode.assignableExpression.identifier), 1);
+        }
+    }
+
+    @Override
+    public void visit(DecrementNode decrementNode) {
+        if (decrementNode.assignableExpression.memberAccess != null) { // Object var / field
+            int localVarIndex = localVariables.indexOf(decrementNode.assignableExpression.identifier);
+            if (localVarIndex >= 0) { // object
+                methodVisitor.visitVarInsn(ALOAD, localVarIndex);
+            } else { // this
+                methodVisitor.visitVarInsn(ALOAD, 0);
+            }
+            if (decrementNode.assignableExpression.memberAccess.getTypeNode() instanceof BaseType) {
+                methodVisitor.visitFieldInsn(GETFIELD, decrementNode.assignableExpression.memberAccess.identifiers.get(0), decrementNode.assignableExpression.memberAccess.identifiers.get(1), mapper.getTypeChar((BaseType) decrementNode.assignableExpression.memberAccess.getTypeNode()));
+            } else if (decrementNode.assignableExpression.memberAccess.getTypeNode() instanceof ReferenceType) {
+                methodVisitor.visitFieldInsn(GETFIELD, decrementNode.assignableExpression.memberAccess.identifiers.get(0), decrementNode.assignableExpression.memberAccess.identifiers.get(1), "L" + (((ReferenceType) decrementNode.assignableExpression.memberAccess.getTypeNode()).getIdentifier() + ";"));
+            }
+            methodVisitor.visitInsn(ICONST_1);
+            methodVisitor.visitInsn(ISUB);
+            if (decrementNode.assignableExpression.memberAccess.getTypeNode() instanceof BaseType) {
+                methodVisitor.visitFieldInsn(PUTFIELD, decrementNode.assignableExpression.memberAccess.identifiers.get(0), decrementNode.assignableExpression.memberAccess.identifiers.get(1), mapper.getTypeChar((BaseType) decrementNode.assignableExpression.memberAccess.getTypeNode()));
+            } else if (decrementNode.assignableExpression.memberAccess.getTypeNode() instanceof ReferenceType) {
+                methodVisitor.visitFieldInsn(PUTFIELD, decrementNode.assignableExpression.memberAccess.identifiers.get(0), decrementNode.assignableExpression.memberAccess.identifiers.get(1), "L" + (((ReferenceType) decrementNode.assignableExpression.memberAccess.getTypeNode()).getIdentifier() + ";"));
+            }
+        } else { // local var
+            methodVisitor.visitIincInsn(localVariables.indexOf(decrementNode.assignableExpression.identifier), -1);
+        }
+    }
+
+    @Override
+    public void visit(NewDeclarationNode newDeclarationNode) {
+        methodVisitor.visitTypeInsn(NEW, newDeclarationNode.identifier);
+        methodVisitor.visitInsn(DUP);
+        List<ParameterNode> parameterNodes = new ArrayList<>();
+        for (IExpressionNode expressionNode : newDeclarationNode.expressions) {
+            expressionNode.accept(this);
+            parameterNodes.add(new ParameterNode(expressionNode.getType(), ""));
+        }
+        methodVisitor.visitMethodInsn(INVOKESPECIAL, newDeclarationNode.identifier, "<init>", mapper.generateMethodDescriptor(new BaseType(TypeEnum.VOID), parameterNodes), false);
+    }
+
+    @Override
+    public void visit(ValueNode valueNode) {
+        switch (valueNode.valueType) {
+            case INT_VALUE:
+                int intValue = Integer.parseInt(valueNode.value);
+                if (intValue >= Byte.MIN_VALUE && intValue <= Byte.MAX_VALUE) { // load int as byte
+                    methodVisitor.visitIntInsn(BIPUSH, intValue);
+                } else if (intValue >= Short.MIN_VALUE && intValue <= Short.MAX_VALUE) { // load int as short
+                    methodVisitor.visitIntInsn(SIPUSH, intValue);
+                } else { // load int as const
+                    methodVisitor.visitLdcInsn(intValue);
+                }
+                break;
+            case BOOLEAN_VALUE:
+                if (valueNode.value.equals("true")) {
+                    methodVisitor.visitInsn(ICONST_1);
+                } else {
+                    methodVisitor.visitInsn(ICONST_0);
+                }
+                break;
+            case CHAR_VALUE:
+                char charValue = valueNode.value.charAt(0);
+                if (charValue <= Byte.MAX_VALUE) { // load char as byte
+                    methodVisitor.visitIntInsn(BIPUSH, charValue);
+                } else if (charValue <= Short.MAX_VALUE) { // load char as short
+                    methodVisitor.visitIntInsn(SIPUSH, charValue);
+                } else { // load char as const
+                    methodVisitor.visitLdcInsn(charValue);
+                }
+                break;
+            case NULL_VALUE:
+                methodVisitor.visitInsn(ACONST_NULL);
+                break;
+        }
+    }
+
+    @Override
+    public void visit(ReturnNode returnNode) {
+        if (returnNode.voidReturn) { // Return nothing
+            methodVisitor.visitInsn(RETURN);
+        } else { // Return something
+            // Process expression
+            returnNode.expression.accept(this);
+
+            if (returnNode.expression instanceof UnaryNode) {
+                UnaryNode unaryNode = (UnaryNode) returnNode.expression;
+                if (unaryNode.statement instanceof IncrementNode) {
+                    IncrementNode incrementNode = (IncrementNode) unaryNode.statement;
+                    incrementNode.assignableExpression.typeNode = unaryNode.getType();
+                    loadIncrement(incrementNode);
+                }
+                if (unaryNode.statement instanceof DecrementNode) {
+                    DecrementNode decrementNode = (DecrementNode) unaryNode.statement;
+                    decrementNode.assignableExpression.typeNode = unaryNode.getType();
+                    loadDecrement(decrementNode);
+                }
+            }
+
+            // Return result of expression
+            if (returnNode.expression.getType() instanceof BaseType) {
+                methodVisitor.visitInsn(IRETURN);
+            } else if (returnNode.expression.getType() instanceof ReferenceType) {
+                methodVisitor.visitInsn(ARETURN);
+            }
+        }
+    }
+
+
+    @Override
+    public void visit(WhileNode whileNode) {
+        Label loopLabel = new Label();
+        Label endOfLoopLabel = new Label();
+
+        methodVisitor.visitLabel(loopLabel);
+        // while loop
+        whileNode.expression.accept(this);
+        methodVisitor.visitJumpInsn(IFEQ, endOfLoopLabel); // if condition is false, jump out of loop
+
+        whileNode.block.accept(this);
+        methodVisitor.visitJumpInsn(GOTO, loopLabel);
+
+        methodVisitor.visitLabel(endOfLoopLabel);
+    }
+
+    @Override
+    public void visit(MethodCallNode methodCallNode) {
+        List<ParameterNode> parameterNodes = new ArrayList<>();
+        int localVarIndex = -1;
+        if (methodCallNode.target.memberAccess.identifiers.size() > 1) {
+            localVarIndex = localVariables.indexOf(methodCallNode.target.memberAccess.identifiers.get(1));
+        }
+        if (localVarIndex >= 0) { // local var object
+            methodVisitor.visitVarInsn(ALOAD, localVarIndex);
+        } else { // this field
+            methodVisitor.visitVarInsn(ALOAD, 0);
+        }
+        for (IExpressionNode expressionNode : methodCallNode.parameters) {
+            expressionNode.accept(this);
+            parameterNodes.add(new ParameterNode(expressionNode.getType(), ""));
+        }
+        if(methodCallNode.type == null) {
+            methodCallNode.type = new BaseType(TypeEnum.INT);
+        }
+        methodVisitor.visitMethodInsn(INVOKEVIRTUAL, methodCallNode.target.memberAccess.identifiers.get(0), methodCallNode.identifier, mapper.generateMethodDescriptor(methodCallNode.type, parameterNodes), false);
+    }
 }

src/main/java/bytecode/visitor/ClassVisitor.java

@@ -5,6 +5,5 @@ import ast.members.FieldNode;
 
 public interface ClassVisitor {
     void visit(ClassNode classNode);
-
     void visit(FieldNode fieldNode);
 }

src/main/java/bytecode/visitor/MethodVisitor.java

@@ -1,9 +1,68 @@
 package bytecode.visitor;
 
+import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.NotNode;
+import ast.expressions.unaryexpressions.UnaryNode;
 import ast.members.ConstructorNode;
+import ast.members.MainMethodNode;
 import ast.members.MethodNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.NewDeclarationNode;
+import ast.statementexpressions.crementexpressions.DecrementNode;
+import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.ChainedMethodNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statements.*;
+import ast.type.ValueNode;
 
 public interface MethodVisitor {
+    // members
     void visit(ConstructorNode constructorNode);
+
     void visit(MethodNode methodNode);
+
+    void visit(MainMethodNode mainMethodNode);
+
+    // Binary expressions
+    void visit(BinaryNode binaryNode);
+
+    void visit(CalculationNode calculationNode);
+
+    void visit(DotNode dotNode);
+
+    void visit(DotSubtractionNode dotSubtractionNode);
+
+    void visit(NonCalculationNode nonCalculationNode);
+
+    // Unary expressions
+    void visit(MemberAccessNode memberAccessNode);
+
+    void visit(NotNode notExpressionNode);
+
+    void visit(UnaryNode unaryExpressionNode);
+
+    // statements
+    void visit(BlockNode blockNode);
+    void visit(IfElseNode ifElseNode);
+
+    void visit(IncrementNode incrementNode);
+    void visit(DecrementNode decrementNode);
+
+    void visit(LocalVariableDeclarationNode localVariableDeclarationNode);
+
+    void visit(ReturnNode returnNode);
+
+    void visit(WhileNode whileNode);
+
+    // statement expression
+    void visit(MethodCallNode methodCallNode);
+
+    void visit(AssignNode assignNode);
+
+    void visit(NewDeclarationNode newDeclarationNode);
+
+    // type
+    void visit(ValueNode valueNode);
+
 }

src/main/java/bytecode/visitor/ProgramVisitor.java

@@ -3,5 +3,5 @@ package bytecode.visitor;
 import ast.ProgramNode;
 
 public interface ProgramVisitor {
-  void visit(ProgramNode programNode);
+    void visit(ProgramNode programNode);
 }

src/main/java/main/Main.java

@@ -13,20 +13,18 @@ import org.antlr.v4.runtime.tree.ParseTree;
 
 import java.io.IOException;
 import java.nio.file.Paths;
-
+import java.util.Optional;
 
 /**
- * Start Raupenpiler using make:
+ * Start miniCompiler using make:
  * <p> <code> cd .\src\test\ </code>
- * <p> <code> make clean compile-raupenpiler </code>
- * <p> Start Raupenpiler using jar:
- * <p> <code> java.exe -jar path_to_jar\JavaCompiler-1.0-SNAPSHOT-jar-with-dependencies.jar 'path_to_input_file.java' 'path_to_output_directory' </code>
+ * <p> <code> make clean compile-miniCompiler </code>
+ * <p> Start miniCompiler using jar:
+ * <p> <code> java.exe -DgenJar=true_OR_false -DgenClass=true_OR_false -jar path_to_jar\JavaCompiler-1.0-jar-with-dependencies.jar 'path_to_input_file.java' 'path_to_output_directory' </code>
  * <p> Example (jar needs to be in the target directory, compile with make or mvn package first):
- * <code> java.exe -jar .\target\JavaCompiler-1.0-SNAPSHOT-jar-with-dependencies.jar 'src/main/resources/input/CompilerInput.java' 'src/main/resources/output' </code>
+ * <code> java.exe -DgenJar=true -DgenClass=true -jar .\target\JavaCompiler-1.0-jar-with-dependencies.jar 'src/main/resources/input/CompilerInput.java' 'src/main/resources/output' </code>
  */
 public class Main {
-
-
     public static void main(String[] args) throws Exception {
         if (args.length == 2) {
             // args[0] is the input file path
@@ -41,16 +39,14 @@ public class Main {
                 System.err.println("Error reading the file: " + e.getMessage());
             }
         }
-        /*        !!! Else Branch (main ohne args starten) ist nicht zur Verwendung vorgesehen, immer mit args starten !!!
         else {
             try {
-                CharStream codeCharStream = CharStreams.fromPath(Paths.get("src/main/resources/input/CompilerInput.java"));
-                compileFile(codeCharStream);
+                CharStream codeCharStream = CharStreams.fromPath(Paths.get("src/test/resources/input/finalTest/Car.java"));
+                compileFile(codeCharStream, "src/test/resources/input/finalTest");
             } catch (IOException e) {
                 System.err.println("Error reading the file: " + e.getMessage());
             }
         }
-        */
     }
 
     /**
@@ -67,7 +63,7 @@ public class Main {
      */
     static void compileFile(CharStream inputCharStream, String outputDirectoryPath) {
         // Initialize the logger
-        new RaupenLogger();
+        new MiniCompilerLogger();
 
         /* ------------------------- Scanner -> tokens ------------------------- */
         // Use the SimpleJavaLexer to tokenize the input CharStream
@@ -75,34 +71,46 @@ public class Main {
         CommonTokenStream tokenStream = new CommonTokenStream(lexer);
         tokenStream.fill();
         // Log the tokens
-        RaupenLogger.logScanner(tokenStream);
+        MiniCompilerLogger.logScanner(tokenStream);
 
         /*------------------------- Parser -> Parsetree -------------------------*/
         // Use the SimpleJavaParser to parse the tokens and generate a ParseTree
         SimpleJavaParser parser = new SimpleJavaParser(tokenStream);
         ParseTree parseTree = parser.program(); // parse the input
         // Log the ParseTree
-        RaupenLogger.logParser(parseTree, parser);
+        MiniCompilerLogger.logParser(parseTree, parser);
 
         /*------------------------- AST builder -> AST -------------------------*/
         // Use the ASTBuilder to visit the ParseTree and generate an Abstract Syntax Tree (AST)
         ASTBuilder astBuilder = new ASTBuilder();
         ASTNode abstractSyntaxTree = astBuilder.visit(parseTree);
         // Log the AST
-        RaupenLogger.logAST(abstractSyntaxTree);
+        MiniCompilerLogger.logAST(abstractSyntaxTree);
 
         /*------------------------- Semantic Analyzer -> typed AST -------------------------*/
         // Use the SemanticAnalyzer to generate a typed AST
         ASTNode typedAst = SemanticAnalyzer.generateTast(abstractSyntaxTree);
         // Log the typed AST
-        RaupenLogger.logSemanticAnalyzer(typedAst);
+        MiniCompilerLogger.logSemanticAnalyzer(typedAst);
+
+        if(SemanticAnalyzer.errors.isEmpty()){
+            /*------------------------- Bytecode Generator -> Bytecode -------------------------*/
+            // Use the ByteCodeGenerator to generate bytecode from the typed AST and output it to the specified directory
+
+            final boolean genJar = Optional.ofNullable(System.getProperty("genJar")).map(String::toLowerCase).map(Boolean::parseBoolean).orElse(true);
+            final boolean genClass = Optional.ofNullable(System.getProperty("genClass")).map(String::toLowerCase).map(Boolean::parseBoolean).orElse(true);
+
+            ByteCodeGenerator byteCodeGenerator = new ByteCodeGenerator(outputDirectoryPath, genJar, genClass);
+            assert typedAst != null;
+            byteCodeGenerator.visit((ProgramNode) typedAst);
+            // Log the bytecode generation
+            MiniCompilerLogger.logBytecodeGenerator();
+        } else {
+            for(Exception exception : SemanticAnalyzer.errors){
+                exception.printStackTrace();
+            }
+        }
+
 
-        /*------------------------- Bytecode Generator -> Bytecode -------------------------*/
-        // Use the ByteCodeGenerator to generate bytecode from the typed AST and output it to the specified directory
-        ByteCodeGenerator byteCodeGenerator = new ByteCodeGenerator(outputDirectoryPath);
-        assert typedAst != null;
-        byteCodeGenerator.visit((ProgramNode) typedAst);
-        // Log the bytecode generation
-        RaupenLogger.logBytecodeGenerator();
     }
 }

src/main/java/main/MiniCompilerLogger.java

@@ -16,24 +16,28 @@ import java.util.List;
 import java.util.logging.*;
 
 /**
- Beispiel für Logging-Arten:
- <p><code>logger.severe("Schwerwiegender Fehler");</code>
- <p><code>logger.warning("Warnung");</code>
- <p><code>logger.info("Information");</code>
- <p><code>logger.config("Konfigurationshinweis");</code>
- <p><code>logger.fine("Fein");</code>
- <p><code>logger.finer("Feiner");</code>
- <p><code>logger.finest("Am feinsten");</code>
- <p>You may toggle the logging level of the console and file handlers by
- changing the level ALL/OFF/etc. in the constructor.
- <code>consoleHandler.setLevel(Level.OFF);</code>
- <code>fileHandler.setLevel(Level.ALL);</code>
+ * Beispiel für Logging-Arten:
+ * <p><code>logger.severe("Schwerwiegender Fehler");</code>
+ * <p><code>logger.warning("Warnung");</code>
+ * <p><code>logger.info("Information");</code>
+ * <p><code>logger.config("Konfigurationshinweis");</code>
+ * <p><code>logger.fine("Fein");</code>
+ * <p><code>logger.finer("Feiner");</code>
+ * <p><code>logger.finest("Am feinsten");</code>
+ * <p>You may toggle the logging level of the console and file handlers by
+ * changing the level ALL/OFF/etc. in the constructor.
+ * <code>consoleHandler.setLevel(Level.OFF);</code>
+ * <code>fileHandler.setLevel(Level.ALL);</code>
  */
-public class RaupenLogger {
 
-    static Logger logger = Logger.getLogger("RaupenLogs");
 
-    public RaupenLogger() {
+
+
+public class MiniCompilerLogger {
+
+    static Logger logger = Logger.getLogger("miniCompilerLogs");
+
+    public MiniCompilerLogger() {
         // ------------------------- Logging -------------------------
         logger.setLevel(Level.ALL);
         logger.getParent().getHandlers()[0].setLevel(Level.ALL);
@@ -66,14 +70,16 @@ public class RaupenLogger {
             logger.addHandler(consoleHandler);
 
             // Configure file handler
-            Handler fileHandler = new FileHandler("src/main/resources/logs/RaupenLog.log");
+            Handler fileHandler = new FileHandler("src/main/resources/logs/miniCompiler.log");
             // Toggle file logging on/off
             fileHandler.setLevel(Level.ALL);
             fileHandler.setFormatter(new CustomFormatter());
             logger.addHandler(fileHandler);
 
-        } catch (SecurityException | IOException e) {
+        } catch (SecurityException e) {
             e.printStackTrace();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
         }
     }
 
@@ -102,7 +108,7 @@ public class RaupenLogger {
     public static void logAST(ASTNode abstractSyntaxTree) {
         // Printing the AST
         logger.info("-------------------- AST builder -> AST  --------------------");
-        // logger.info("AST: " + ast.toString());
+        logger.info("Abstract Syntax Tree generated, Startnode:");
         logAST(abstractSyntaxTree, 0);
         logger.info("\n");
     }
@@ -110,14 +116,15 @@ public class RaupenLogger {
     public static void logSemanticAnalyzer(ASTNode typedAst) {
         // Printing the typed AST
         logger.info("-------------------- Semantic Analyzer -> typed AST  --------------------");
-        logAST(typedAst, 0);
+        // logAST(typedAst, 0);
+        logger.info("Typed Abstract Syntax Tree generated without errors");
         logger.info("\n");
     }
 
     public static void logBytecodeGenerator() {
         // Printing the bytecode
         logger.info("-------------------- Bytecode Generator -> Bytecode  --------------------");
-        logger.info("Bytecode generated");
+        logger.info("Bytecode generated without errors");
         logger.info("\n");
     }
 
@@ -164,7 +171,6 @@ public class RaupenLogger {
         }
     }
 
-    // TODO: Fix this method
     public static void logAST(ASTNode abstractSyntaxTree, int indent) {
         if (abstractSyntaxTree == null) {
             logger.severe("AST is null !!!");
@@ -172,9 +178,9 @@ public class RaupenLogger {
         }
         String indentString = " ".repeat(indent * 2);
         logger.info(indentString + abstractSyntaxTree.getClass());
-
-        // for (ASTNode child : node.) {
-        // printAST(child, indent + 1);
+        // for (ASTNode child : abstractSyntaxTree.getChildren()) {
+        //    logAST(child, indent + 1);
         // }
+
     }
 }

src/main/java/parser/astBuilder/ASTBuilder.java

@@ -3,10 +3,7 @@ package parser.astBuilder;
 import ast.*;
 
 import ast.expressions.IExpressionNode;
-import ast.expressions.binaryexpressions.CalculationNode;
-import ast.expressions.binaryexpressions.DotNode;
-import ast.expressions.binaryexpressions.DotSubstractionNode;
-import ast.expressions.binaryexpressions.NonCalculationNode;
+import ast.expressions.binaryexpressions.*;
 import ast.expressions.unaryexpressions.MemberAccessNode;
 import ast.expressions.unaryexpressions.NotNode;
 import ast.expressions.unaryexpressions.UnaryNode;
@@ -14,6 +11,7 @@ import ast.members.*;
 import ast.parameters.ParameterNode;
 import ast.statementexpressions.AssignNode;
 import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.IStatementExpressionNode;
 import ast.statementexpressions.NewDeclarationNode;
 import ast.statementexpressions.crementexpressions.CrementType;
 import ast.statementexpressions.crementexpressions.DecrementNode;
@@ -32,7 +30,18 @@ import parser.generated.*;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * ASTBuilder is a visitor that converts the parse tree into an abstract syntax tree (AST).
+ */
 public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
+
+    /**
+     * Visits a program node and creates a ProgramNode.
+     * It iterates through all class declarations in the context and adds them to the ProgramNode.
+     *
+     * @param ctx the program context
+     * @return the AST node for the program
+     */
     @Override
     public ASTNode visitProgram(SimpleJavaParser.ProgramContext ctx) {
         ProgramNode program = new ProgramNode();
@@ -42,62 +51,161 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return program;
     }
 
+
+    /**
+     * Visits a class declaration and creates a ClassNode.
+     * It checks for an access modifier, processes member declarations, and ensures the class has a constructor.
+     *
+     * @param ctx the class declaration context
+     * @return the AST node for the class
+     */
     @Override
     public ASTNode visitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx) {
-        ClassNode classNode = new ClassNode(ctx.AccessModifier().getText(), ctx.Identifier().getText());
-        for (SimpleJavaParser.MemberDeclarationContext member : ctx.memberDeclaration()) {
-            classNode.addMember((MemberNode) visit(member));
+        ClassNode classNode;
+        if(ctx.AccessModifier() != null){
+            classNode = new ClassNode(ctx.AccessModifier().getText(), ctx.Identifier().getText());
         }
-        classNode.ensureConstructor();
+        else{
+            classNode = new ClassNode("public", ctx.Identifier().getText());
+        }
+
+        boolean hasConstructor = false;
+
+        for (SimpleJavaParser.MemberDeclarationContext member : ctx.memberDeclaration()) {
+            MemberNode memberNode = (MemberNode) visit(member);
+            if(memberNode != null) {
+                if(memberNode instanceof ConstructorNode){
+                    hasConstructor = true;
+                }
+                classNode.addMember(memberNode);
+            }
+        }
+
+        if(!hasConstructor){
+            BlockNode blockNode = new BlockNode();
+            blockNode.addStatement(new ReturnNode(null));
+            classNode.members.addFirst(new ConstructorNode("public", ctx.Identifier().getText(), blockNode));
+        }
+
         return classNode;
     }
 
+    /**
+     * Visits a constructor declaration and creates a ConstructorNode.
+     * It processes access modifiers, block statements, and parameters.
+     *
+     * @param ctx the constructor declaration context
+     * @return the AST node for the constructor
+     */
     @Override
     public ASTNode visitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx) {
-        ConstructorNode constructorNode = new ConstructorNode(ctx.AccessModifier().getText(), ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+        ConstructorNode constructorNode;
+        if(ctx.AccessModifier() != null) {
+            constructorNode = new ConstructorNode(ctx.AccessModifier().getText(), ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+        } else {
+            constructorNode = new ConstructorNode("public", ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+        }
         if(ctx.parameterList() != null) {
             for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
                 constructorNode.addParameter((ParameterNode) visit(parameter));
             }
         }
+        constructorNode.block.addStatement(new ReturnNode(null));
         return constructorNode;
     }
 
+    /**
+     * Visits a method declaration and creates a MethodNode or MainMethodNode.
+     * It handles method types, access modifiers, block statements, and parameters.
+     *
+     * @param ctx the method declaration context
+     * @return the AST node for the method
+     */
     @Override
     public ASTNode visitMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx) {
         if(ctx.MainMethodDeclaration() != null) {
-            return new MainMethodNode((BlockNode) visit(ctx.blockStatement()));
+            MainMethodNode mainMethod = new MainMethodNode((BlockNode) visit(ctx.blockStatement()));
+            mainMethod.block.addStatement(new ReturnNode(null));
+            return mainMethod;
         } else {
             if(ctx.type() != null) {
-                MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
-                if(ctx.parameterList() != null) {
-                    for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
-                        methodNode.addParameter((ParameterNode) visit(parameter));
+                if(ctx.AccessModifier() != null) {
+                    MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
                     }
+                    return methodNode;
+                } else {
+                    MethodNode methodNode = new MethodNode("public", createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    return methodNode;
                 }
-                return methodNode;
             } else {
-                MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
-                if(ctx.parameterList() != null) {
-                    for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
-                        methodNode.addParameter((ParameterNode) visit(parameter));
+                if(ctx.AccessModifier() != null) {
+                    MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
                     }
+                    methodNode.block.addStatement(new ReturnNode(null));
+                    return methodNode;
+                } else {
+                    MethodNode methodNode = new MethodNode("public", null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    methodNode.block.addStatement(new ReturnNode(null));
+                    return methodNode;
                 }
-                return methodNode;
             }
         }
     }
 
+
+    /**
+     * Visits a field declaration and creates a FieldNode.
+     * It handles access modifiers and types.
+     *
+     * @param ctx the field declaration context
+     * @return the AST node for the field
+     */
     @Override
     public ASTNode visitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx) {
-        return new FieldNode(new AccessModifierNode(ctx.AccessModifier().getText()), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        if(ctx.AccessModifier() != null) {
+            return new FieldNode(new AccessModifierNode(ctx.AccessModifier().getText()), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        } else {
+            return new FieldNode(new AccessModifierNode("public"), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        }
     }
 
+    /**
+     * Visits a parameter and creates a ParameterNode.
+     * It handles the type and identifier of the parameter.
+     *
+     * @param ctx the parameter context
+     * @return the AST node for the parameter
+     */
     @Override
     public ASTNode visitParameter(SimpleJavaParser.ParameterContext ctx) {
         return new ParameterNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
     }
 
+    /**
+     * Visits a statement and creates the corresponding AST node.
+     * It determines the specific type of statement and processes it accordingly.
+     *
+     * @param ctx the statement context
+     * @return the AST node for the statement
+     */
     @Override
     public ASTNode visitStatement(SimpleJavaParser.StatementContext ctx) {
         if(ctx.returnStatement() != null) {
@@ -114,44 +222,78 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
             return visitForStatement(ctx.forStatement());
         } else if(ctx.ifElseStatement() != null) {
             return visitIfElseStatement(ctx.ifElseStatement());
+        } else if(ctx.switchStatement() != null) {
+            return visitSwitchStatement(ctx.switchStatement());
         } else if(ctx.statementExpression() != null) {
             return visitStatementExpression(ctx.statementExpression());
         }
         return null;
     }
 
+    /**
+     * Visits a return statement and creates a ReturnNode.
+     * It processes the expression in the return statement.
+     *
+     * @param ctx the return statement context
+     * @return the AST node for the return statement
+     */
     @Override
     public ASTNode visitReturnStatement(SimpleJavaParser.ReturnStatementContext ctx) {
         return new ReturnNode((IExpressionNode) visit(ctx.expression()));
     }
 
+    /**
+     * Visits a return statement and creates a ReturnNode.
+     * It processes the expression in the return statement.
+     *
+     * @param ctx the return statement context
+     * @return the AST node for the return statement
+     */
     @Override
     public ASTNode visitLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx) {
-        return new LocalVariableDeclarationNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText(), ctx.Assign().getText(), (IExpressionNode) visit(ctx.expression()));
+        if(ctx.Assign() != null) {
+            return new LocalVariableDeclarationNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText(), ctx.Assign().getText(), (IExpressionNode) visit(ctx.expression()));
+        } else {
+            return new LocalVariableDeclarationNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText(), null, null);
+        }
+
     }
 
+    /**
+     * Visits a block statement and creates a BlockNode.
+     * It processes all statements within the block.
+     *
+     * @param ctx the block statement context
+     * @return the AST node for the block statement
+     */
     @Override
     public ASTNode visitBlockStatement(SimpleJavaParser.BlockStatementContext ctx) {
         BlockNode blockNode = new BlockNode();
-        boolean hasReturnStatement = false;
         for(SimpleJavaParser.StatementContext statement : ctx.statement()) {
-            IStatementNode statementNode = (IStatementNode) visit(statement);
-            if(statementNode instanceof ReturnNode) {
-                hasReturnStatement = true;
-            }
-            blockNode.addStatement(statementNode);
-        }
-        if(!hasReturnStatement) {
-            blockNode.addStatement(new ReturnNode(null));
+            blockNode.addStatement((IStatementNode) visit(statement));
         }
         return blockNode;
     }
 
+    /**
+     * Visits a while statement and creates a WhileNode.
+     * It processes the condition expression and the block statement.
+     *
+     * @param ctx the while statement context
+     * @return the AST node for the while statement
+     */
     @Override
     public ASTNode visitWhileStatement(SimpleJavaParser.WhileStatementContext ctx) {
         return new WhileNode((IExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.blockStatement()));
     }
 
+    /**
+     * Visits a do-while statement and creates a BlockNode containing a WhileNode.
+     * It processes the condition expression and the block statement.
+     *
+     * @param ctx the do-while statement context
+     * @return the AST node for the do-while statement
+     */
     @Override
     public ASTNode visitDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx) {
         IExpressionNode condition = (IExpressionNode) visit(ctx.expression());
@@ -159,57 +301,85 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
         WhileNode While = new WhileNode(condition, doBlock);
         BlockNode resultBlock = new BlockNode();
-        resultBlock.addStatement((IStatementNode) doBlock);
-        resultBlock.addStatement((IStatementNode) While);
+        resultBlock.addStatement(doBlock);
+        resultBlock.addStatement(While);
 
         return resultBlock;
     }
 
+    /**
+     * Visits a for statement and creates a BlockNode that contains a WhileNode.
+     * It processes the initialization, condition, and increment parts of the for loop.
+     *
+     * @param ctx the for statement context
+     * @return the AST node for the for statement
+     */
     @Override
     public ASTNode visitForStatement(SimpleJavaParser.ForStatementContext ctx) {
-
         List<IStatementNode> statements = new ArrayList<>();
 
-        //init
+        // Initialisierung
         int i = 0;
-        if(ctx.localVariableDeclaration() != null) {
+        if (ctx.localVariableDeclaration() != null) {
             statements.add((IStatementNode) visit(ctx.localVariableDeclaration()));
-        } else if(ctx.statementExpression(i) != null){
+        } else if (ctx.statementExpression(i) != null) {
             statements.add((IStatementNode) visit(ctx.statementExpression(i)));
             i++;
         }
 
-        //condition
+        // Bedingung
         IExpressionNode condition = (IExpressionNode) visit(ctx.expression());
 
-        //ink
-        IStatementNode crement = null;
-        if(ctx.statementExpression(i) != null){
-            crement = (IStatementNode) visit(ctx.statementExpression(i));
+        // Inkrement
+        IStatementExpressionNode crement = null;
+        if (ctx.statementExpression(i) != null) {
+            crement = (IStatementExpressionNode) visit(ctx.statementExpression(i));
         }
 
         BlockNode forBlock = (BlockNode) visit(ctx.blockStatement());
 
-        if(crement != null){
-            forBlock.addStatement((crement));
+        // While-Schleife
+        BlockNode whileBody = new BlockNode();
+
+        // Block Statements der For-Schleife in den While-Block kopieren
+        for (IStatementNode statement : forBlock.statements) {
+            whileBody.addStatement(statement);
         }
 
-        WhileNode While = new WhileNode(condition, forBlock);
+        // Post-Inkrement: Das Inkrement kommt nach dem Block
+        if (crement != null) {
+            whileBody.addStatement(crement);
+        }
 
-        statements.add(While);
+        // Bedingung der While-Schleife
+        WhileNode whileNode = new WhileNode(condition, whileBody);
+
+        statements.add(whileNode);
 
         BlockNode resultBlock = new BlockNode();
-        for(IStatementNode statement : statements) {
-            resultBlock.addStatement((IStatementNode) statement);
+        for (IStatementNode statement : statements) {
+            resultBlock.addStatement(statement);
         }
 
         return resultBlock;
     }
 
+    /**
+     * Visits an if-else statement and creates an IfElseNode.
+     * It processes the if, else-if, and else parts of the statement.
+     *
+     * @param ctx the if-else statement context
+     * @return the AST node for the if-else statement
+     */
     @Override
     public ASTNode visitIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx) {
-        IfElseNode ifElseStatementNode =  new IfElseNode((IfNode) visit(ctx.ifStatement()),
-                (ElseNode) visit(ctx.elseStatement()));
+        IfElseNode ifElseStatementNode;
+        if(ctx.elseStatement() != null) {
+            ifElseStatementNode =  new IfElseNode((IfNode) visit(ctx.ifStatement()),
+                    (ElseNode) visit(ctx.elseStatement()));
+        } else {
+            ifElseStatementNode =  new IfElseNode((IfNode) visit(ctx.ifStatement()), null);
+        }
 
         for (SimpleJavaParser.ElseIfStatementContext elseIf : ctx.elseIfStatement()){
             ifElseStatementNode.addElseIfStatement(((IfNode) visit(elseIf)));
@@ -218,21 +388,49 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return ifElseStatementNode;
     }
 
+    /**
+     * Visits an if statement and creates an IfNode.
+     * It processes the condition expression and the block statement.
+     *
+     * @param ctx the if statement context
+     * @return the AST node for the if statement
+     */
     @Override
     public ASTNode visitIfStatement(SimpleJavaParser.IfStatementContext ctx) {
         return new IfNode((IExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.blockStatement()));
     }
 
+    /**
+     * Visits an else-if statement and creates an IfNode.
+     * It processes the condition expression and the block statement.
+     *
+     * @param ctx the else-if statement context
+     * @return the AST node for the else-if statement
+     */
     @Override
     public ASTNode visitElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx) {
         return new IfNode((IExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.blockStatement()));
     }
 
+    /**
+     * Visits an else statement and creates an ElseNode.
+     * It processes the block statement of the else part.
+     *
+     * @param ctx the else statement context
+     * @return the AST node for the else statement
+     */
     @Override
     public ASTNode visitElseStatement(SimpleJavaParser.ElseStatementContext ctx) {
         return new ElseNode((BlockNode) visit(ctx.blockStatement()));
     }
 
+    /**
+     * Visits a statement expression and creates the corresponding AST node.
+     * It handles assignments, new declarations, method calls, and increment/decrement expressions.
+     *
+     * @param ctx the statement expression context
+     * @return the AST node for the statement expression
+     */
     @Override
     public ASTNode visitStatementExpression(SimpleJavaParser.StatementExpressionContext ctx) {
         if(ctx.assign() != null) {
@@ -247,11 +445,75 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a switch statement and creates an IfElseNode representing the switch cases.
+     * It processes the switch expression, case statements, and default statement.
+     *
+     * @param ctx the switch statement context
+     * @return the AST node for the switch statement
+     */
+    @Override
+    public ASTNode visitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) {
+        UnaryNode switchExpression = (UnaryNode) visit(ctx.expression());
+
+        List<IfNode> ifNodes = new ArrayList<>();
+
+        for (SimpleJavaParser.CaseStatementContext caseCtx : ctx.caseStatement()) {
+            IExpressionNode caseExpression = (IExpressionNode) visit(caseCtx.value());
+
+            // Condition as NonCalculationNode -> Equals Expression
+            NonCalculationNode condition = new NonCalculationNode(switchExpression, "==", caseExpression);
+
+            BlockNode caseBlock = new BlockNode();
+            for (SimpleJavaParser.StatementContext stmtCtx : caseCtx.statement()) {
+                caseBlock.addStatement((IStatementNode) visit(stmtCtx));
+            }
+
+            // Each case as if
+            IfNode ifNode = new IfNode(condition, caseBlock);
+            ifNodes.add(ifNode);
+        }
+
+        // Check if has Default
+        ElseNode defaulElseNode = null;
+        if (ctx.defaultStatement() != null) {
+            BlockNode defaultBlock = new BlockNode();
+            for (SimpleJavaParser.StatementContext stmtCtx : ctx.defaultStatement().statement()) {
+                defaultBlock.addStatement((IStatementNode) visit(stmtCtx));
+            }
+            // Default als letztes Else Statement
+            defaulElseNode = new ElseNode(defaultBlock);
+        }
+
+        IfElseNode ifElseNode = new IfElseNode(ifNodes.getFirst(),defaulElseNode);
+        ifNodes.removeFirst();
+
+        for (IfNode ifNode : ifNodes){
+            ifElseNode.addElseIfStatement(ifNode);
+        }
+
+        return ifElseNode;
+    }
+
+    /**
+     * Visits an assignment expression and creates an AssignNode.
+     * It handles the assignable expression and the assigned expression.
+     *
+     * @param ctx the assignment context
+     * @return the AST node for the assignment
+     */
     @Override
     public ASTNode visitAssign(SimpleJavaParser.AssignContext ctx) {
         return new AssignNode((AssignableNode) visit(ctx.assignableExpression()), (IExpressionNode) visit(ctx.expression()));
     }
 
+    /**
+     * Visits a new declaration and creates a NewDeclarationNode.
+     * It processes the identifier and the argument list.
+     *
+     * @param ctx the new declaration context
+     * @return the AST node for the new declaration
+     */
     @Override
     public ASTNode visitNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx) {
         NewDeclarationNode newDeclarationNode = new NewDeclarationNode(ctx.Identifier().getText());
@@ -261,9 +523,21 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return newDeclarationNode;
     }
 
+    /**
+     * Visits a method call and creates a MethodCallNode.
+     * It processes the target, chained methods, and argument list.
+     *
+     * @param ctx the method call context
+     * @return the AST node for the method call
+     */
     @Override
     public ASTNode visitMethodCall(SimpleJavaParser.MethodCallContext ctx) {
-        MethodCallNode methodCallStatementExpressionNode = new MethodCallNode((TargetNode) visit(ctx.target()), ctx.Identifier().getText());
+        MethodCallNode methodCallStatementExpressionNode;
+        if(ctx.target() != null) {
+            methodCallStatementExpressionNode = new MethodCallNode((TargetNode) visit(ctx.target()), ctx.Identifier().getText());
+        } else {
+            methodCallStatementExpressionNode = new MethodCallNode(null, ctx.Identifier().getText());
+        }
         for(SimpleJavaParser.ChainedMethodContext chainedMethod : ctx.chainedMethod()) {
             methodCallStatementExpressionNode.addChainedMethod((ChainedMethodNode) visit(chainedMethod));
         }
@@ -273,6 +547,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return methodCallStatementExpressionNode;
     }
 
+    /**
+     * Visits the target of a method call and creates a TargetNode.
+     * It handles various types of targets including 'this', member access, new declarations, and identifiers.
+     *
+     * @param ctx the target context
+     * @return the AST node for the target
+     */
     @Override
     public ASTNode visitTarget(SimpleJavaParser.TargetContext ctx) {
         if(ctx.This() != null) {
@@ -287,6 +568,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a chained method and creates a ChainedMethodNode.
+     * It processes the identifier and the argument list.
+     *
+     * @param ctx the chained method context
+     * @return the AST node for the chained method
+     */
     @Override
     public ASTNode visitChainedMethod(SimpleJavaParser.ChainedMethodContext ctx) {
         ChainedMethodNode chainedMethodNode = new ChainedMethodNode(ctx.Identifier().getText());
@@ -296,6 +584,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return chainedMethodNode;
     }
 
+    /**
+     * Visits an increment or decrement expression and creates the corresponding AST node.
+     * It handles both prefix and suffix forms of increment and decrement.
+     *
+     * @param ctx the crement expression context
+     * @return the AST node for the crement expression
+     */
     @Override
     public ASTNode visitCrementExpression(SimpleJavaParser.CrementExpressionContext ctx) {
         if(ctx.incrementExpression() != null) {
@@ -306,6 +601,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits an increment expression and creates an IncrementNode.
+     * It handles both prefix and suffix forms.
+     *
+     * @param ctx the increment expression context
+     * @return the AST node for the increment expression
+     */
     @Override
     public ASTNode visitIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx) {
         if(ctx.prefixIncrementExpression() != null) {
@@ -316,16 +618,35 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a prefix increment expression and creates an IncrementNode.
+     *
+     * @param ctx the prefix increment expression context
+     * @return the AST node for the prefix increment expression
+     */
     @Override
     public ASTNode visitPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx) {
         return new IncrementNode(CrementType.PREFIX, (AssignableNode) visit(ctx.assignableExpression()));
     }
 
+    /**
+     * Visits a suffix increment expression and creates an IncrementNode.
+     *
+     * @param ctx the suffix increment expression context
+     * @return the AST node for the suffix increment expression
+     */
     @Override
     public ASTNode visitSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx) {
         return new IncrementNode(CrementType.SUFFIX, (AssignableNode) visit(ctx.assignableExpression()));
     }
 
+    /**
+     * Visits a decrement expression and creates a DecrementNode.
+     * It handles both prefix and suffix forms.
+     *
+     * @param ctx the decrement expression context
+     * @return the AST node for the decrement expression
+     */
     @Override
     public ASTNode visitDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx) {
         if(ctx.prefixDecrementExpression() != null) {
@@ -336,16 +657,35 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a prefix decrement expression and creates a DecrementNode.
+     *
+     * @param ctx the prefix decrement expression context
+     * @return the AST node for the prefix decrement expression
+     */
     @Override
     public ASTNode visitPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx) {
         return new DecrementNode(CrementType.PREFIX, (AssignableNode) visit(ctx.assignableExpression()));
     }
 
+    /**
+     * Visits a suffix decrement expression and creates a DecrementNode.
+     *
+     * @param ctx the suffix decrement expression context
+     * @return the AST node for the suffix decrement expression
+     */
     @Override
     public ASTNode visitSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx) {
         return new DecrementNode(CrementType.SUFFIX, (AssignableNode) visit(ctx.assignableExpression()));
     }
 
+    /**
+     * Visits an expression and creates the corresponding AST node.
+     * It handles both unary and binary expressions.
+     *
+     * @param ctx the expression context
+     * @return the AST node for the expression
+     */
     @Override
     public ASTNode visitExpression(SimpleJavaParser.ExpressionContext ctx) {
         if(ctx.unaryExpression() != null) {
@@ -356,6 +696,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a unary expression and creates a UnaryNode.
+     * It handles various forms of unary expressions including 'this', identifiers, member access, values, and more.
+     *
+     * @param ctx the unary expression context
+     * @return the AST node for the unary expression
+     */
     @Override
     public ASTNode visitUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx) {
         if(ctx.This() != null) {
@@ -376,6 +723,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a member access expression and creates a MemberAccessNode.
+     * It processes the 'this' keyword and identifiers for member access.
+     *
+     * @param ctx the member access context
+     * @return the AST node for the member access
+     */
     @Override
     public ASTNode visitMemberAccess(SimpleJavaParser.MemberAccessContext ctx) {
         MemberAccessNode memberAccessNode;
@@ -390,6 +744,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return memberAccessNode;
     }
 
+    /**
+     * Visits a value and creates a ValueNode.
+     * It handles integer, boolean, char, and null values.
+     *
+     * @param ctx the value context
+     * @return the AST node for the value
+     */
     @Override
     public ASTNode visitValue(SimpleJavaParser.ValueContext ctx) {
         if(ctx.IntValue() != null) {
@@ -404,12 +765,25 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a not expression and creates a NotNode.
+     * It processes the expression to which the 'not' operator is applied.
+     *
+     * @param ctx the not expression context
+     * @return the AST node for the not expression
+     */
     @Override
     public ASTNode visitNotExpression(SimpleJavaParser.NotExpressionContext ctx) {
         return new NotNode((IExpressionNode) visitExpression(ctx.expression()));
     }
 
-
+    /**
+     * Visits a binary expression and creates the corresponding AST node.
+     * It handles both calculation and non-calculation expressions.
+     *
+     * @param ctx the binary expression context
+     * @return the AST node for the binary expression
+     */
     @Override
     public ASTNode visitBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx) {
         if(ctx.calculationExpression() != null) {
@@ -420,6 +794,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a calculation expression and creates a CalculationNode.
+     * It handles line operators and dot expressions.
+     *
+     * @param ctx the calculation expression context
+     * @return the AST node for the calculation expression
+     */
     @Override
     public ASTNode visitCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx) {
         if(ctx.calculationExpression() != null) {
@@ -430,35 +811,69 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Visits a dot expression and creates a DotNode.
+     * It handles dot operators and dot subtraction expressions.
+     *
+     * @param ctx the dot expression context
+     * @return the AST node for the dot expression
+     */
     @Override
     public ASTNode visitDotExpression(SimpleJavaParser.DotExpressionContext ctx) {
         if(ctx.dotExpression() != null) {
-            return new DotNode((DotNode) visit(ctx.dotExpression()), ctx.DotOperator().getText(), (DotSubstractionNode) visit(ctx.dotSubtractionExpression()));
+            return new DotNode((DotNode) visit(ctx.dotExpression()), ctx.DotOperator().getText(), (DotSubtractionNode) visit(ctx.dotSubtractionExpression()));
         } else if(ctx.dotSubtractionExpression() != null) {
-            return new DotNode((DotSubstractionNode) visit(ctx.dotSubtractionExpression()));
+            return new DotNode((DotSubtractionNode) visit(ctx.dotSubtractionExpression()));
         }
         return null;
     }
 
+    /**
+     * Visits a dot subtraction expression and creates a DotSubtractionNode.
+     * It handles integer values, identifiers, member access, and method calls.
+     *
+     * @param ctx the dot subtraction expression context
+     * @return the AST node for the dot subtraction expression
+     *//**
+     * Creates an ITypeNode based on the type identifier.
+     * It handles basic types and reference types.
+     *
+     * @param identifier the type identifier
+     * @return the type node
+     */
     @Override
     public ASTNode visitDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx) {
         if(ctx.IntValue() != null) {
-            return new DotSubstractionNode(new ValueNode(EnumValueNode.INT_VALUE, ctx.IntValue().getText()));
+            return new DotSubtractionNode(new ValueNode(EnumValueNode.INT_VALUE, ctx.IntValue().getText()));
         } else if(ctx.Identifier() != null) {
-            return new DotSubstractionNode(ctx.Identifier().getText());
+            return new DotSubtractionNode(ctx.Identifier().getText());
         } else if(ctx.memberAccess() != null) {
-            return new DotSubstractionNode((MemberAccessNode) visit(ctx.memberAccess()));
+            return new DotSubtractionNode((MemberAccessNode) visit(ctx.memberAccess()));
         } else if(ctx.methodCall() != null && ctx.calculationExpression() != null) {
-            return new DotSubstractionNode((MethodCallNode) visit(ctx.methodCall()), (CalculationNode) visit(ctx.calculationExpression()));
+            return new DotSubtractionNode((MethodCallNode) visit(ctx.methodCall()), (CalculationNode) visit(ctx.calculationExpression()));
         }
         return null;
     }
 
+    /**
+     * Visits a non-calculation expression and creates a NonCalculationNode.
+     * It handles unary expressions combined with non-calculation operators.
+     *
+     * @param ctx the non-calculation expression context
+     * @return the AST node for the non-calculation expression
+     */
     @Override
     public ASTNode visitNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx) {
         return new NonCalculationNode((UnaryNode) visit(ctx.unaryExpression()), ctx.nonCalculationOperator().getText(), (IExpressionNode) visit(ctx.expression()));
     }
 
+    /**
+     * Visits an assignable expression and creates an AssignableNode.
+     * It handles identifiers and member access.
+     *
+     * @param ctx the assignable expression context
+     * @return the AST node for the assignable expression
+     */
     @Override
     public ASTNode visitAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx) {
         if(ctx.Identifier() != null) {
@@ -469,6 +884,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    /**
+     * Creates an ITypeNode based on the type identifier.
+     * It handles basic types and reference types.
+     *
+     * @param identifier the type identifier
+     * @return the type node
+     */
     public ITypeNode createTypeNode(String identifier){
         return switch (identifier) {
             case "int" -> new BaseType(TypeEnum.INT);
@@ -478,6 +900,4 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
             default -> new ReferenceType(identifier);
         };
     }
-
-}
-
+}

src/main/java/parser/generated/SimpleJava.tokens

@@ -41,14 +41,18 @@ Else=40
 For=41
 Return=42
 New=43
-CharValue=44
-IntValue=45
-BooleanValue=46
-NullValue=47
-Identifier=48
-WS=49
-InlineComment=50
-MultilineComment=51
+Switch=44
+Case=45
+Default=46
+Colon=47
+CharValue=48
+IntValue=49
+BooleanValue=50
+NullValue=51
+Identifier=52
+WS=53
+InlineComment=54
+MultilineComment=55
 '++'=1
 '--'=2
 'void'=3
@@ -87,4 +91,8 @@ MultilineComment=51
 'for'=41
 'return'=42
 'new'=43
-'null'=47
+'switch'=44
+'case'=45
+'default'=46
+':'=47
+'null'=51

src/main/java/parser/generated/SimpleJavaBaseListener.java

@@ -252,6 +252,42 @@ public class SimpleJavaBaseListener implements SimpleJavaListener {
 	 * <p>The default implementation does nothing.</p>
 	 */
 	@Override public void exitElseStatement(SimpleJavaParser.ElseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterCaseStatement(SimpleJavaParser.CaseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitCaseStatement(SimpleJavaParser.CaseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx) { }
 	/**
 	 * {@inheritDoc}
 	 *

src/main/java/parser/generated/SimpleJavaBaseVisitor.java

@@ -152,6 +152,27 @@ public class SimpleJavaBaseVisitor<T> extends AbstractParseTreeVisitor<T> implem
 	 * {@link #visitChildren} on {@code ctx}.</p>
 	 */
 	@Override public T visitElseStatement(SimpleJavaParser.ElseStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitCaseStatement(SimpleJavaParser.CaseStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx) { return visitChildren(ctx); }
 	/**
 	 * {@inheritDoc}
 	 *

src/main/java/parser/generated/SimpleJavaLexer.java

@@ -23,9 +23,9 @@ public class SimpleJavaLexer extends Lexer {
 		Less=20, GreaterEqual=21, LessEqual=22, Equal=23, NotEqual=24, Not=25, 
 		And=26, Or=27, Dot=28, OpenRoundBracket=29, ClosedRoundBracket=30, OpenCurlyBracket=31, 
 		ClosedCurlyBracket=32, Semicolon=33, Comma=34, Class=35, This=36, While=37, 
-		Do=38, If=39, Else=40, For=41, Return=42, New=43, CharValue=44, IntValue=45, 
-		BooleanValue=46, NullValue=47, Identifier=48, WS=49, InlineComment=50, 
-		MultilineComment=51;
+		Do=38, If=39, Else=40, For=41, Return=42, New=43, Switch=44, Case=45, 
+		Default=46, Colon=47, CharValue=48, IntValue=49, BooleanValue=50, NullValue=51, 
+		Identifier=52, WS=53, InlineComment=54, MultilineComment=55;
 	public static String[] channelNames = {
 		"DEFAULT_TOKEN_CHANNEL", "HIDDEN"
 	};
@@ -42,9 +42,10 @@ public class SimpleJavaLexer extends Lexer {
 			"GreaterEqual", "LessEqual", "Equal", "NotEqual", "Not", "And", "Or", 
 			"Dot", "OpenRoundBracket", "ClosedRoundBracket", "OpenCurlyBracket", 
 			"ClosedCurlyBracket", "Semicolon", "Comma", "Class", "This", "While", 
-			"Do", "If", "Else", "For", "Return", "New", "CharValue", "IntValue", 
-			"BooleanValue", "NullValue", "Alphabetic", "Numeric", "ValidIdentSymbols", 
-			"Identifier", "WS", "InlineComment", "MultilineComment"
+			"Do", "If", "Else", "For", "Return", "New", "Switch", "Case", "Default", 
+			"Colon", "CharValue", "IntValue", "BooleanValue", "NullValue", "Alphabetic", 
+			"Numeric", "ValidIdentSymbols", "Identifier", "WS", "InlineComment", 
+			"MultilineComment"
 		};
 	}
 	public static final String[] ruleNames = makeRuleNames();
@@ -56,7 +57,8 @@ public class SimpleJavaLexer extends Lexer {
 			"'+'", "'-'", "'*'", "'%'", "'/'", "'>'", "'<'", "'>='", "'<='", "'=='", 
 			"'!='", "'!'", "'&&'", "'||'", "'.'", "'('", "')'", "'{'", "'}'", "';'", 
 			"','", "'class'", "'this'", "'while'", "'do'", "'if'", "'else'", "'for'", 
-			"'return'", "'new'", null, null, null, "'null'"
+			"'return'", "'new'", "'switch'", "'case'", "'default'", "':'", null, 
+			null, null, "'null'"
 		};
 	}
 	private static final String[] _LITERAL_NAMES = makeLiteralNames();
@@ -68,9 +70,9 @@ public class SimpleJavaLexer extends Lexer {
 			"Greater", "Less", "GreaterEqual", "LessEqual", "Equal", "NotEqual", 
 			"Not", "And", "Or", "Dot", "OpenRoundBracket", "ClosedRoundBracket", 
 			"OpenCurlyBracket", "ClosedCurlyBracket", "Semicolon", "Comma", "Class", 
-			"This", "While", "Do", "If", "Else", "For", "Return", "New", "CharValue", 
-			"IntValue", "BooleanValue", "NullValue", "Identifier", "WS", "InlineComment", 
-			"MultilineComment"
+			"This", "While", "Do", "If", "Else", "For", "Return", "New", "Switch", 
+			"Case", "Default", "Colon", "CharValue", "IntValue", "BooleanValue", 
+			"NullValue", "Identifier", "WS", "InlineComment", "MultilineComment"
 		};
 	}
 	private static final String[] _SYMBOLIC_NAMES = makeSymbolicNames();
@@ -132,7 +134,7 @@ public class SimpleJavaLexer extends Lexer {
 	public ATN getATN() { return _ATN; }
 
 	public static final String _serializedATN =
-		"\u0004\u00003\u019d\u0006\uffff\uffff\u0002\u0000\u0007\u0000\u0002\u0001"+
+		"\u0004\u00007\u01bb\u0006\uffff\uffff\u0002\u0000\u0007\u0000\u0002\u0001"+
 		"\u0007\u0001\u0002\u0002\u0007\u0002\u0002\u0003\u0007\u0003\u0002\u0004"+
 		"\u0007\u0004\u0002\u0005\u0007\u0005\u0002\u0006\u0007\u0006\u0002\u0007"+
 		"\u0007\u0007\u0002\b\u0007\b\u0002\t\u0007\t\u0002\n\u0007\n\u0002\u000b"+
@@ -147,245 +149,263 @@ public class SimpleJavaLexer extends Lexer {
 		"&\u0002\'\u0007\'\u0002(\u0007(\u0002)\u0007)\u0002*\u0007*\u0002+\u0007"+
 		"+\u0002,\u0007,\u0002-\u0007-\u0002.\u0007.\u0002/\u0007/\u00020\u0007"+
 		"0\u00021\u00071\u00022\u00072\u00023\u00073\u00024\u00074\u00025\u0007"+
-		"5\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0001\u0001\u0001\u0001\u0001"+
-		"\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0003"+
+		"5\u00026\u00076\u00027\u00077\u00028\u00078\u00029\u00079\u0001\u0000"+
+		"\u0001\u0000\u0001\u0000\u0001\u0001\u0001\u0001\u0001\u0001\u0001\u0002"+
+		"\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0003\u0001\u0003"+
 		"\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003"+
-		"\u0001\u0003\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004"+
-		"\u0001\u0005\u0001\u0005\u0001\u0005\u0001\u0005\u0001\u0006\u0001\u0006"+
+		"\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0005"+
+		"\u0001\u0005\u0001\u0005\u0001\u0005\u0001\u0006\u0001\u0006\u0001\u0006"+
 		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
 		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
 		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
 		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
 		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
 		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
-		"\u0001\u0006\u0001\u0006\u0003\u0006\u00b2\b\u0006\u0001\u0007\u0001\u0007"+
+		"\u0001\u0006\u0003\u0006\u00ba\b\u0006\u0001\u0007\u0001\u0007\u0001\u0007"+
 		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
 		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
 		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
 		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
 		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
 		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
-		"\u0001\u0007\u0001\b\u0001\b\u0001\b\u0003\b\u00de\b\b\u0001\t\u0001\t"+
-		"\u0003\t\u00e2\b\t\u0001\n\u0001\n\u0001\n\u0001\n\u0001\n\u0001\n\u0003"+
-		"\n\u00ea\b\n\u0001\u000b\u0001\u000b\u0003\u000b\u00ee\b\u000b\u0001\f"+
-		"\u0001\f\u0001\r\u0001\r\u0001\u000e\u0001\u000e\u0001\u000f\u0001\u000f"+
-		"\u0001\u0010\u0001\u0010\u0001\u0011\u0001\u0011\u0001\u0012\u0001\u0012"+
-		"\u0001\u0013\u0001\u0013\u0001\u0014\u0001\u0014\u0001\u0014\u0001\u0015"+
-		"\u0001\u0015\u0001\u0015\u0001\u0016\u0001\u0016\u0001\u0016\u0001\u0017"+
-		"\u0001\u0017\u0001\u0017\u0001\u0018\u0001\u0018\u0001\u0019\u0001\u0019"+
-		"\u0001\u0019\u0001\u001a\u0001\u001a\u0001\u001a\u0001\u001b\u0001\u001b"+
-		"\u0001\u001c\u0001\u001c\u0001\u001d\u0001\u001d\u0001\u001e\u0001\u001e"+
-		"\u0001\u001f\u0001\u001f\u0001 \u0001 \u0001!\u0001!\u0001\"\u0001\"\u0001"+
-		"\"\u0001\"\u0001\"\u0001\"\u0001#\u0001#\u0001#\u0001#\u0001#\u0001$\u0001"+
-		"$\u0001$\u0001$\u0001$\u0001$\u0001%\u0001%\u0001%\u0001&\u0001&\u0001"+
-		"&\u0001\'\u0001\'\u0001\'\u0001\'\u0001\'\u0001(\u0001(\u0001(\u0001("+
-		"\u0001)\u0001)\u0001)\u0001)\u0001)\u0001)\u0001)\u0001*\u0001*\u0001"+
-		"*\u0001*\u0001+\u0001+\u0005+\u014f\b+\n+\f+\u0152\t+\u0001+\u0001+\u0001"+
-		",\u0003,\u0157\b,\u0001,\u0004,\u015a\b,\u000b,\f,\u015b\u0001-\u0001"+
-		"-\u0001-\u0001-\u0001-\u0001-\u0001-\u0001-\u0001-\u0003-\u0167\b-\u0001"+
-		".\u0001.\u0001.\u0001.\u0001.\u0001/\u0001/\u00010\u00010\u00011\u0001"+
-		"1\u00011\u00031\u0175\b1\u00012\u00012\u00052\u0179\b2\n2\f2\u017c\t2"+
-		"\u00013\u00043\u017f\b3\u000b3\f3\u0180\u00013\u00013\u00014\u00014\u0001"+
-		"4\u00014\u00054\u0189\b4\n4\f4\u018c\t4\u00014\u00014\u00015\u00015\u0001"+
-		"5\u00015\u00055\u0194\b5\n5\f5\u0197\t5\u00015\u00015\u00015\u00015\u0001"+
-		"5\u0001\u0195\u00006\u0001\u0001\u0003\u0002\u0005\u0003\u0007\u0004\t"+
-		"\u0005\u000b\u0006\r\u0007\u000f\b\u0011\t\u0013\n\u0015\u000b\u0017\f"+
-		"\u0019\r\u001b\u000e\u001d\u000f\u001f\u0010!\u0011#\u0012%\u0013\'\u0014"+
-		")\u0015+\u0016-\u0017/\u00181\u00193\u001a5\u001b7\u001c9\u001d;\u001e"+
-		"=\u001f? A!C\"E#G$I%K&M\'O(Q)S*U+W,Y-[.]/_\u0000a\u0000c\u0000e0g1i2k"+
-		"3\u0001\u0000\u0005\u0002\u0000\n\n\r\r\u0002\u0000AZaz\u0001\u000009"+
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+		"\u0109*\u0001\u0000\u0000\u0000\u010a\u010b\u0005<\u0000\u0000\u010b\u010c"+
+		"\u0005=\u0000\u0000\u010c,\u0001\u0000\u0000\u0000\u010d\u010e\u0005="+
+		"\u0000\u0000\u010e\u010f\u0005=\u0000\u0000\u010f.\u0001\u0000\u0000\u0000"+
+		"\u0110\u0111\u0005!\u0000\u0000\u0111\u0112\u0005=\u0000\u0000\u01120"+
+		"\u0001\u0000\u0000\u0000\u0113\u0114\u0005!\u0000\u0000\u01142\u0001\u0000"+
+		"\u0000\u0000\u0115\u0116\u0005&\u0000\u0000\u0116\u0117\u0005&\u0000\u0000"+
+		"\u01174\u0001\u0000\u0000\u0000\u0118\u0119\u0005|\u0000\u0000\u0119\u011a"+
+		"\u0005|\u0000\u0000\u011a6\u0001\u0000\u0000\u0000\u011b\u011c\u0005."+
+		"\u0000\u0000\u011c8\u0001\u0000\u0000\u0000\u011d\u011e\u0005(\u0000\u0000"+
+		"\u011e:\u0001\u0000\u0000\u0000\u011f\u0120\u0005)\u0000\u0000\u0120<"+
+		"\u0001\u0000\u0000\u0000\u0121\u0122\u0005{\u0000\u0000\u0122>\u0001\u0000"+
+		"\u0000\u0000\u0123\u0124\u0005}\u0000\u0000\u0124@\u0001\u0000\u0000\u0000"+
+		"\u0125\u0126\u0005;\u0000\u0000\u0126B\u0001\u0000\u0000\u0000\u0127\u0128"+
+		"\u0005,\u0000\u0000\u0128D\u0001\u0000\u0000\u0000\u0129\u012a\u0005c"+
+		"\u0000\u0000\u012a\u012b\u0005l\u0000\u0000\u012b\u012c\u0005a\u0000\u0000"+
+		"\u012c\u012d\u0005s\u0000\u0000\u012d\u012e\u0005s\u0000\u0000\u012eF"+
+		"\u0001\u0000\u0000\u0000\u012f\u0130\u0005t\u0000\u0000\u0130\u0131\u0005"+
+		"h\u0000\u0000\u0131\u0132\u0005i\u0000\u0000\u0132\u0133\u0005s\u0000"+
+		"\u0000\u0133H\u0001\u0000\u0000\u0000\u0134\u0135\u0005w\u0000\u0000\u0135"+
+		"\u0136\u0005h\u0000\u0000\u0136\u0137\u0005i\u0000\u0000\u0137\u0138\u0005"+
+		"l\u0000\u0000\u0138\u0139\u0005e\u0000\u0000\u0139J\u0001\u0000\u0000"+
+		"\u0000\u013a\u013b\u0005d\u0000\u0000\u013b\u013c\u0005o\u0000\u0000\u013c"+
+		"L\u0001\u0000\u0000\u0000\u013d\u013e\u0005i\u0000\u0000\u013e\u013f\u0005"+
+		"f\u0000\u0000\u013fN\u0001\u0000\u0000\u0000\u0140\u0141\u0005e\u0000"+
+		"\u0000\u0141\u0142\u0005l\u0000\u0000\u0142\u0143\u0005s\u0000\u0000\u0143"+
+		"\u0144\u0005e\u0000\u0000\u0144P\u0001\u0000\u0000\u0000\u0145\u0146\u0005"+
+		"f\u0000\u0000\u0146\u0147\u0005o\u0000\u0000\u0147\u0148\u0005r\u0000"+
+		"\u0000\u0148R\u0001\u0000\u0000\u0000\u0149\u014a\u0005r\u0000\u0000\u014a"+
+		"\u014b\u0005e\u0000\u0000\u014b\u014c\u0005t\u0000\u0000\u014c\u014d\u0005"+
+		"u\u0000\u0000\u014d\u014e\u0005r\u0000\u0000\u014e\u014f\u0005n\u0000"+
+		"\u0000\u014fT\u0001\u0000\u0000\u0000\u0150\u0151\u0005n\u0000\u0000\u0151"+
+		"\u0152\u0005e\u0000\u0000\u0152\u0153\u0005w\u0000\u0000\u0153V\u0001"+
+		"\u0000\u0000\u0000\u0154\u0155\u0005s\u0000\u0000\u0155\u0156\u0005w\u0000"+
+		"\u0000\u0156\u0157\u0005i\u0000\u0000\u0157\u0158\u0005t\u0000\u0000\u0158"+
+		"\u0159\u0005c\u0000\u0000\u0159\u015a\u0005h\u0000\u0000\u015aX\u0001"+
+		"\u0000\u0000\u0000\u015b\u015c\u0005c\u0000\u0000\u015c\u015d\u0005a\u0000"+
+		"\u0000\u015d\u015e\u0005s\u0000\u0000\u015e\u015f\u0005e\u0000\u0000\u015f"+
+		"Z\u0001\u0000\u0000\u0000\u0160\u0161\u0005d\u0000\u0000\u0161\u0162\u0005"+
+		"e\u0000\u0000\u0162\u0163\u0005f\u0000\u0000\u0163\u0164\u0005a\u0000"+
+		"\u0000\u0164\u0165\u0005u\u0000\u0000\u0165\u0166\u0005l\u0000\u0000\u0166"+
+		"\u0167\u0005t\u0000\u0000\u0167\\\u0001\u0000\u0000\u0000\u0168\u0169"+
+		"\u0005:\u0000\u0000\u0169^\u0001\u0000\u0000\u0000\u016a\u016e\u0005\'"+
+		"\u0000\u0000\u016b\u016d\b\u0000\u0000\u0000\u016c\u016b\u0001\u0000\u0000"+
+		"\u0000\u016d\u0170\u0001\u0000\u0000\u0000\u016e\u016c\u0001\u0000\u0000"+
+		"\u0000\u016e\u016f\u0001\u0000\u0000\u0000\u016f\u0171\u0001\u0000\u0000"+
+		"\u0000\u0170\u016e\u0001\u0000\u0000\u0000\u0171\u0172\u0005\'\u0000\u0000"+
+		"\u0172`\u0001\u0000\u0000\u0000\u0173\u0175\u0003\u001d\u000e\u0000\u0174"+
+		"\u0173\u0001\u0000\u0000\u0000\u0174\u0175\u0001\u0000\u0000\u0000\u0175"+
+		"\u0177\u0001\u0000\u0000\u0000\u0176\u0178\u0003i4\u0000\u0177\u0176\u0001"+
+		"\u0000\u0000\u0000\u0178\u0179\u0001\u0000\u0000\u0000\u0179\u0177\u0001"+
+		"\u0000\u0000\u0000\u0179\u017a\u0001\u0000\u0000\u0000\u017ab\u0001\u0000"+
+		"\u0000\u0000\u017b\u017c\u0005t\u0000\u0000\u017c\u017d\u0005r\u0000\u0000"+
+		"\u017d\u017e\u0005u\u0000\u0000\u017e\u0185\u0005e\u0000\u0000\u017f\u0180"+
+		"\u0005f\u0000\u0000\u0180\u0181\u0005a\u0000\u0000\u0181\u0182\u0005l"+
+		"\u0000\u0000\u0182\u0183\u0005s\u0000\u0000\u0183\u0185\u0005e\u0000\u0000"+
+		"\u0184\u017b\u0001\u0000\u0000\u0000\u0184\u017f\u0001\u0000\u0000\u0000"+
+		"\u0185d\u0001\u0000\u0000\u0000\u0186\u0187\u0005n\u0000\u0000\u0187\u0188"+
+		"\u0005u\u0000\u0000\u0188\u0189\u0005l\u0000\u0000\u0189\u018a\u0005l"+
+		"\u0000\u0000\u018af\u0001\u0000\u0000\u0000\u018b\u018c\u0007\u0001\u0000"+
+		"\u0000\u018ch\u0001\u0000\u0000\u0000\u018d\u018e\u0007\u0002\u0000\u0000"+
+		"\u018ej\u0001\u0000\u0000\u0000\u018f\u0193\u0003g3\u0000\u0190\u0193"+
+		"\u0003i4\u0000\u0191\u0193\u0007\u0003\u0000\u0000\u0192\u018f\u0001\u0000"+
+		"\u0000\u0000\u0192\u0190\u0001\u0000\u0000\u0000\u0192\u0191\u0001\u0000"+
+		"\u0000\u0000\u0193l\u0001\u0000\u0000\u0000\u0194\u0198\u0003g3\u0000"+
+		"\u0195\u0197\u0003k5\u0000\u0196\u0195\u0001\u0000\u0000\u0000\u0197\u019a"+
+		"\u0001\u0000\u0000\u0000\u0198\u0196\u0001\u0000\u0000\u0000\u0198\u0199"+
+		"\u0001\u0000\u0000\u0000\u0199n\u0001\u0000\u0000\u0000\u019a\u0198\u0001"+
+		"\u0000\u0000\u0000\u019b\u019d\u0007\u0004\u0000\u0000\u019c\u019b\u0001"+
+		"\u0000\u0000\u0000\u019d\u019e\u0001\u0000\u0000\u0000\u019e\u019c\u0001"+
+		"\u0000\u0000\u0000\u019e\u019f\u0001\u0000\u0000\u0000\u019f\u01a0\u0001"+
+		"\u0000\u0000\u0000\u01a0\u01a1\u00067\u0000\u0000\u01a1p\u0001\u0000\u0000"+
+		"\u0000\u01a2\u01a3\u0005/\u0000\u0000\u01a3\u01a4\u0005/\u0000\u0000\u01a4"+
+		"\u01a8\u0001\u0000\u0000\u0000\u01a5\u01a7\b\u0000\u0000\u0000\u01a6\u01a5"+
+		"\u0001\u0000\u0000\u0000\u01a7\u01aa\u0001\u0000\u0000\u0000\u01a8\u01a6"+
+		"\u0001\u0000\u0000\u0000\u01a8\u01a9\u0001\u0000\u0000\u0000\u01a9\u01ab"+
+		"\u0001\u0000\u0000\u0000\u01aa\u01a8\u0001\u0000\u0000\u0000\u01ab\u01ac"+
+		"\u00068\u0000\u0000\u01acr\u0001\u0000\u0000\u0000\u01ad\u01ae\u0005/"+
+		"\u0000\u0000\u01ae\u01af\u0005*\u0000\u0000\u01af\u01b3\u0001\u0000\u0000"+
+		"\u0000\u01b0\u01b2\t\u0000\u0000\u0000\u01b1\u01b0\u0001\u0000\u0000\u0000"+
+		"\u01b2\u01b5\u0001\u0000\u0000\u0000\u01b3\u01b4\u0001\u0000\u0000\u0000"+
+		"\u01b3\u01b1\u0001\u0000\u0000\u0000\u01b4\u01b6\u0001\u0000\u0000\u0000"+
+		"\u01b5\u01b3\u0001\u0000\u0000\u0000\u01b6\u01b7\u0005*\u0000\u0000\u01b7"+
+		"\u01b8\u0005/\u0000\u0000\u01b8\u01b9\u0001\u0000\u0000\u0000\u01b9\u01ba"+
+		"\u00069\u0000\u0000\u01bat\u0001\u0000\u0000\u0000\u000f\u0000\u00b9\u00e5"+
+		"\u00e9\u00f1\u00f5\u016e\u0174\u0179\u0184\u0192\u0198\u019e\u01a8\u01b3"+
+		"\u0001\u0006\u0000\u0000";
 	public static final ATN _ATN =
 		new ATNDeserializer().deserialize(_serializedATN.toCharArray());
 	static {

src/main/java/parser/generated/SimpleJavaLexer.tokens

@@ -41,14 +41,18 @@ Else=40
 For=41
 Return=42
 New=43
-CharValue=44
-IntValue=45
-BooleanValue=46
-NullValue=47
-Identifier=48
-WS=49
-InlineComment=50
-MultilineComment=51
+Switch=44
+Case=45
+Default=46
+Colon=47
+CharValue=48
+IntValue=49
+BooleanValue=50
+NullValue=51
+Identifier=52
+WS=53
+InlineComment=54
+MultilineComment=55
 '++'=1
 '--'=2
 'void'=3
@@ -87,4 +91,8 @@ MultilineComment=51
 'for'=41
 'return'=42
 'new'=43
-'null'=47
+'switch'=44
+'case'=45
+'default'=46
+':'=47
+'null'=51

src/main/java/parser/generated/SimpleJavaListener.java

@@ -207,6 +207,36 @@ public interface SimpleJavaListener extends ParseTreeListener {
 	 * @param ctx the parse tree
 	 */
 	void exitElseStatement(SimpleJavaParser.ElseStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#switchStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#switchStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#caseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterCaseStatement(SimpleJavaParser.CaseStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#caseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitCaseStatement(SimpleJavaParser.CaseStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#defaultStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#defaultStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx);
 	/**
 	 * Enter a parse tree produced by {@link SimpleJavaParser#statementExpression}.
 	 * @param ctx the parse tree

src/main/java/parser/generated/SimpleJavaVisitor.java

@@ -130,6 +130,24 @@ public interface SimpleJavaVisitor<T> extends ParseTreeVisitor<T> {
 	 * @return the visitor result
 	 */
 	T visitElseStatement(SimpleJavaParser.ElseStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#switchStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#caseStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitCaseStatement(SimpleJavaParser.CaseStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#defaultStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx);
 	/**
 	 * Visit a parse tree produced by {@link SimpleJavaParser#statementExpression}.
 	 * @param ctx the parse tree

src/main/java/parser/grammar/SimpleJava.g4

@@ -1,18 +1,18 @@
 grammar SimpleJava;
 
 // Programm-Konstrukte
-program: classDeclaration+;
+program: classDeclaration+; // Ein Programm besteht aus einer oder mehreren Klassendeklarationen
 
-classDeclaration: AccessModifier? 'class' Identifier OpenCurlyBracket memberDeclaration* ClosedCurlyBracket;
-memberDeclaration: constructorDeclaration | fieldDeclaration | methodDeclaration;
+classDeclaration: AccessModifier? 'class' Identifier OpenCurlyBracket memberDeclaration* ClosedCurlyBracket; // Deklariert eine Klasse mit optionalem Zugriffsmodifikator und mehreren Mitgliedern
+memberDeclaration: constructorDeclaration | fieldDeclaration | methodDeclaration; // Ein Mitglied kann ein Konstruktor, ein Feld oder eine Methode sein
 
-constructorDeclaration: AccessModifier? Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
-fieldDeclaration: AccessModifier? type Identifier Semicolon;
-methodDeclaration: MainMethodDeclaration blockStatement | AccessModifier? (type | Void) Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
+constructorDeclaration: AccessModifier? Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement; // Deklariert einen Konstruktor
+fieldDeclaration: AccessModifier? type Identifier (Assign expression)? Semicolon; // Deklariert ein Feld mit optionaler Initialisierung
+methodDeclaration: MainMethodDeclaration blockStatement | AccessModifier? (type | Void) Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement; // Deklariert eine Methode
 
-parameterList: parameter (Comma parameter)*;
-parameter: type Identifier;
-argumentList: (expression (Comma expression)*)?;
+parameterList: parameter (Comma parameter)*; // Parameterliste für Methoden und Konstruktoren
+parameter: type Identifier; // Ein einzelner Parameter mit Typ und Bezeichner
+argumentList: (expression (Comma expression)*)?; // Argumentliste für Methodenaufrufe
 
 // Anweisungen
 statement: returnStatement Semicolon
@@ -22,28 +22,33 @@ statement: returnStatement Semicolon
          | doWhileStatement
          | forStatement
          | ifElseStatement
-         | statementExpression Semicolon;
+         | switchStatement
+         | statementExpression Semicolon; // Verschiedene Arten von Anweisungen
 
-blockStatement: OpenCurlyBracket statement* ClosedCurlyBracket;
+blockStatement: OpenCurlyBracket statement* ClosedCurlyBracket; // Ein Block von Anweisungen
 
-returnStatement: Return (expression)?;
-localVariableDeclaration: type Identifier (Assign expression)?;
+returnStatement: Return (expression)?; // Rückgabe-Anweisung
+localVariableDeclaration: type Identifier (Assign expression)?; // Deklaration einer lokalen Variable
 
-whileStatement: While OpenRoundBracket expression ClosedRoundBracket blockStatement;
-doWhileStatement: Do blockStatement While OpenRoundBracket expression ClosedRoundBracket Semicolon;
-forStatement: For OpenRoundBracket (statementExpression | localVariableDeclaration) Semicolon (expression)? Semicolon (statementExpression)? ClosedRoundBracket blockStatement;
+whileStatement: While OpenRoundBracket expression ClosedRoundBracket blockStatement; // While-Schleife
+doWhileStatement: Do blockStatement While OpenRoundBracket expression ClosedRoundBracket Semicolon; // Do-While-Schleife
+forStatement: For OpenRoundBracket (statementExpression | localVariableDeclaration) Semicolon (expression)? Semicolon (statementExpression)? ClosedRoundBracket blockStatement; // For-Schleife
 
-ifElseStatement: ifStatement elseIfStatement* elseStatement?;
-ifStatement: If OpenRoundBracket expression ClosedRoundBracket blockStatement;
-elseIfStatement: Else If OpenRoundBracket expression ClosedRoundBracket blockStatement;
-elseStatement: Else blockStatement;
+ifElseStatement: ifStatement elseIfStatement* elseStatement?; // If-Else-Bedingung
+ifStatement: If OpenRoundBracket expression ClosedRoundBracket blockStatement; // If-Teil der Bedingung
+elseIfStatement: Else If OpenRoundBracket expression ClosedRoundBracket blockStatement; // Else-If-Teil der Bedingung
+elseStatement: Else blockStatement; // Else-Teil der Bedingung
 
-statementExpression: assign | newDeclaration | methodCall | crementExpression;
-assign: assignableExpression Assign expression;
-newDeclaration: New Identifier OpenRoundBracket argumentList ClosedRoundBracket;
+switchStatement: Switch OpenRoundBracket expression ClosedRoundBracket OpenCurlyBracket caseStatement+ defaultStatement? ClosedCurlyBracket; // Switch-Anweisung
+caseStatement: Case value Colon statement*; // Ein Case-Teil einer Switch-Anweisung
+defaultStatement: Default Colon statement*; // Default-Teil einer Switch-Anweisung
+
+statementExpression: assign | newDeclaration | methodCall | crementExpression; // Ausdruck innerhalb einer Anweisung
+assign: assignableExpression Assign expression; // Zuweisung
+newDeclaration: New Identifier OpenRoundBracket argumentList ClosedRoundBracket; // Instanziierung eines neuen Objekts
 
 // Ausdrücke
-expression: unaryExpression | binaryExpression;
+expression: unaryExpression | binaryExpression; // Ein Ausdruck kann unär oder binär sein
 
 unaryExpression: This
                | Identifier
@@ -51,97 +56,97 @@ unaryExpression: This
                | value
                | notExpression
                | statementExpression
-               | OpenRoundBracket expression ClosedRoundBracket;
+               | OpenRoundBracket expression ClosedRoundBracket; // Unäre Ausdrücke
 
-notExpression: Not expression;
+notExpression: Not expression; // Nicht-Ausdruck
 
-crementExpression: incrementExpression | decrementExpression;
+crementExpression: incrementExpression | decrementExpression; // Inkrement-/Dekrement-Ausdrücke
 
 incrementExpression: prefixIncrementExpression | suffixIncrementExpression;
-prefixIncrementExpression: '++' assignableExpression;
-suffixIncrementExpression: assignableExpression '++';
+prefixIncrementExpression: '++' assignableExpression; // Präfix-Inkrement
+suffixIncrementExpression: assignableExpression '++'; // Suffix-Inkrement
 
-decrementExpression: prefixDecrementExpression | suffixDecrementExpression;
-prefixDecrementExpression: '--' assignableExpression;
-suffixDecrementExpression: assignableExpression '--';
+decrementExpression: prefixDecrementExpression | suffixDecrementExpression; // Dekrement-Ausdrücke
+prefixDecrementExpression: '--' assignableExpression; // Präfix-Dekrement
+suffixDecrementExpression: assignableExpression '--'; // Suffix-Dekrement
 
-assignableExpression: Identifier | memberAccess;
+assignableExpression: Identifier | memberAccess; // Zuweisbarer Ausdruck
 
 memberAccess: This Dot Identifier
-            | (This Dot)? (Identifier Dot)+ Identifier;
+            | (This Dot)? (Identifier Dot)+ Identifier; // Mitgliedszugriff
 
-binaryExpression: calculationExpression | nonCalculationExpression;
+binaryExpression: calculationExpression | nonCalculationExpression; // Binäre Ausdrücke
 
 calculationExpression: calculationExpression LineOperator dotExpression
-                     | dotExpression;
+                     | dotExpression; // Berechnungsausdrücke
 
 dotExpression: dotExpression DotOperator dotSubtractionExpression
-              | dotSubtractionExpression;
+              | dotSubtractionExpression; // Punktoperationen
 
 dotSubtractionExpression: IntValue
                         | Identifier
                         | memberAccess
-                        | methodCall OpenRoundBracket calculationExpression ClosedRoundBracket;
+                        | methodCall OpenRoundBracket calculationExpression ClosedRoundBracket; // Punkt-Subtraktionsausdrücke
 
-nonCalculationExpression: unaryExpression nonCalculationOperator expression;
+nonCalculationExpression: unaryExpression nonCalculationOperator expression; // Nicht-Berechnungsausdrücke
 
 // Methodenaufrufe
-methodCall: target? chainedMethod* Identifier OpenRoundBracket argumentList ClosedRoundBracket;
-target: (This | memberAccess | newDeclaration | Identifier) Dot;
-chainedMethod: Identifier OpenRoundBracket argumentList ClosedRoundBracket Dot;
+methodCall: target? chainedMethod* Identifier OpenRoundBracket argumentList ClosedRoundBracket; // Methodenaufruf
+target: (This | memberAccess | newDeclaration | Identifier) Dot; // Ziel eines Methodenaufrufs
+chainedMethod: Identifier OpenRoundBracket argumentList ClosedRoundBracket Dot; // Verkettete Methode
 
 // Typen
 type: Int
     | Boolean
     | Char
-    | Identifier;
+    | Identifier; // Datentypen
 
-Void: 'void';
-Boolean: 'boolean';
-Char: 'char';
-Int: 'int';
+Void: 'void'; // Void-Typ
+Boolean: 'boolean'; // Boolean-Typ
+Char: 'char'; // Char-Typ
+Int: 'int'; // Integer-Typ
 
 value: IntValue
      | BooleanValue
      | CharValue
-     | NullValue;
+     | NullValue; // Werte
 
 // Zugriffsmodifikatoren
-AccessModifier: 'public' | 'private' | 'public static' | 'private static';
-MainMethodDeclaration: 'public static void main(String[] args)';
+AccessModifier: 'public' | 'private' | 'public static' | 'private static'; // Zugriffsmodifikatoren
+MainMethodDeclaration: 'public static void main(String[] args)'; // Hauptmethoden-Deklaration
 
 // Operatoren
-nonCalculationOperator: LogicalOperator | ComparisonOperator;
+nonCalculationOperator: LogicalOperator | ComparisonOperator; // Nicht-Berechnungsoperatoren
 
-DotOperator: Mult | Div | Modulo;
-LineOperator: Plus | Minus;
-ComparisonOperator: Greater | Less | GreaterEqual | LessEqual | Equal | NotEqual;
-LogicalOperator: And | Or;
+DotOperator: Mult | Div | Modulo; // Punktoperatoren
+LineOperator: Plus | Minus; // Linienoperatoren
+ComparisonOperator: Greater | Less | GreaterEqual | LessEqual | Equal | NotEqual; // Vergleichsoperatoren
+LogicalOperator: And | Or; // Logische Operatoren
 
-Assign: '=';
-Plus: '+';
-Minus: '-';
-Mult: '*';
-Modulo: '%';
-Div: '/';
-Greater: '>';
-Less: '<';
-GreaterEqual: '>=';
-LessEqual: '<=';
-Equal: '==';
-NotEqual: '!=';
-Not: '!';
-And: '&&';
-Or: '||';
+Assign: '='; // Zuweisungsoperator
+Plus: '+'; // Plus-Operator
+Minus: '-'; // Minus-Operator
+Mult: '*'; // Multiplikationsoperator
+Modulo: '%'; // Modulo-Operator
+Div: '/'; // Divisionsoperator
+Greater: '>'; // Größer-Operator
+Less: '<'; // Kleiner-Operator
+GreaterEqual: '>='; // Größer-Gleich-Operator
+LessEqual: '<='; // Kleiner-Gleich-Operator
+Equal: '=='; // Gleichheitsoperator
+NotEqual: '!='; // Ungleichheitsoperator
+Not: '!'; // Nicht-Operator
+And: '&&'; // Und-Operator
+Or: '||'; // Oder-Operator
 
 // Symbole
-Dot: '.';
-OpenRoundBracket: '(';
-ClosedRoundBracket: ')';
-OpenCurlyBracket: '{';
-ClosedCurlyBracket: '}';
-Semicolon: ';';
-Comma: ',';
+Dot: '.'; // Punkt-Symbol
+OpenRoundBracket: '('; // Öffnende runde Klammer
+ClosedRoundBracket: ')'; // Schließende runde Klammer
+OpenCurlyBracket: '{'; // Öffnende geschweifte Klammer
+ClosedCurlyBracket: '}'; // Schließende geschweifte Klammer
+Semicolon: ';'; // Semikolon
+Comma: ','; // Komma
 
 // Schlüsselwörter
 Class: 'class';
@@ -153,20 +158,24 @@ Else: 'else';
 For: 'for';
 Return: 'return';
 New: 'new';
+Switch: 'switch';
+Case: 'case';
+Default: 'default';
+Colon: ':'; // Doppelpunkt
 
 // Werte
-CharValue: '\'' ~[\r\n]* '\'';
-IntValue: Minus? Numeric+;
-BooleanValue: 'true' | 'false';
-NullValue: 'null';
+CharValue: '\'' ~[\r\n]* '\''; // Zeichenwert
+IntValue: Minus? Numeric+; // Ganzzahlwert
+BooleanValue: 'true' | 'false'; // Boolean-Wert
+NullValue: 'null'; // Null-Wert
 
 // Bezeichner
 fragment Alphabetic: [a-zA-Z];
 fragment Numeric: [0-9];
 fragment ValidIdentSymbols: Alphabetic | Numeric | '$' | '_';
-Identifier: Alphabetic ValidIdentSymbols*;
+Identifier: Alphabetic ValidIdentSymbols*; // Bezeichner
 
 // Whitespaces und Kommentare ignorieren
-WS: [ \t\r\n]+ -> skip;
-InlineComment: '//' ~[\r\n]* -> skip;
-MultilineComment: '/*' .*? '*/' -> skip;
+WS: [ \t\r\n]+ -> skip; // Leerzeichen ignorieren
+InlineComment: '//' ~[\r\n]* -> skip; // Einzeilige Kommentare ignorieren
+MultilineComment: '/*' .*? '*/' -> skip; // Mehrzeilige Kommentare ignorieren

src/main/java/semantic/Scope.java

@@ -1,14 +1,14 @@
 package semantic;
 
 import ast.type.type.*;
-import semantic.exeptions.AlreadyDeclearedException;
+import semantic.exceptions.AlreadyDeclaredException;
 
 import java.util.HashMap;
 import java.util.Stack;
 
 public class Scope {
 
-    private Stack<HashMap<String, ITypeNode>> localVars;
+    private final Stack<HashMap<String, ITypeNode>> localVars;
 
     public Scope() {
         localVars = new Stack<HashMap<String, ITypeNode>>();
@@ -16,7 +16,7 @@ public class Scope {
 
     public void addLocalVar(String name, ITypeNode type) {
         if (this.contains(name)) {
-            throw new AlreadyDeclearedException("Variable " + name + " already exists in this scope");
+            throw new AlreadyDeclaredException("Variable " + name + " already exists in this scope");
         }
         localVars.peek().put(name, type);
     }

src/main/java/semantic/SemanticAnalyzer.java

@@ -1,6 +1,5 @@
 package semantic;
 
-
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -9,6 +8,7 @@ import java.util.Objects;
 import ast.*;
 import ast.expressions.IExpressionNode;
 import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
 import ast.expressions.unaryexpressions.UnaryNode;
 import ast.members.ConstructorNode;
 import ast.members.FieldNode;
@@ -20,12 +20,15 @@ import ast.statementexpressions.AssignableNode;
 import ast.statementexpressions.NewDeclarationNode;
 import ast.statementexpressions.crementexpressions.DecrementNode;
 import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.ChainedMethodNode;
 import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
 import ast.statements.*;
+import ast.type.EnumAccessModifierNode;
+import ast.type.ValueNode;
 import ast.type.type.*;
 import semantic.context.Context;
-import semantic.exeptions.*;
-import typechecker.TypeCheckResult;
+import semantic.exceptions.*;
 
 public class SemanticAnalyzer implements SemanticVisitor {
 
@@ -106,17 +109,13 @@ public class SemanticAnalyzer implements SemanticVisitor {
 
     @Override
     public TypeCheckResult analyze(MethodNode methodNode) {
-        if (methodNode instanceof ConstructorNode) {
-            return new TypeCheckResult(true, new BaseType(TypeEnum.VOID));
-        } else {
-
             var valid = true;
 
             for (var otherMethod : currentClass.getMethods()) {
                 if (Objects.equals(otherMethod, methodNode))
                     break;
                 if (otherMethod.isSame(methodNode)) {
-                    errors.add(new AlreadyDeclearedException(
+                    errors.add(new AlreadyDeclaredException(
                             "Method " + methodNode.getIdentifier() + " is already defined in class "
                                     + currentClass.identifier));
                     valid = false;
@@ -129,42 +128,39 @@ public class SemanticAnalyzer implements SemanticVisitor {
                 valid = valid && result.isValid();
                 try {
                     currentScope.addLocalVar(parameter.identifier, parameter.type);
-                } catch (AlreadyDeclearedException e) {
-                    errors.add(new AlreadyDeclearedException(parameter.identifier));
+                } catch (AlreadyDeclaredException e) {
+                    errors.add(new AlreadyDeclaredException(parameter.identifier));
                 }
 
             }
-            // Check if this method is already declared
 
             currentMethodReturnType = methodNode.getType();
-            currentNullType = currentMethodReturnType; // Solange nicht in einem Assign oder Methoden-Aufruf dieser Typ
+            currentNullType = currentMethodReturnType;
 
-            ITypeNode resultType = new BaseType(TypeEnum.VOID);
-
-            // gesetzt ist, ist dieser der Rückgabewert der Methode
             var result = methodNode.block.accept(this);
             valid = valid && result.isValid();
             currentScope.popScope();
-            resultType = result.getType();
+            ITypeNode resultType = result.getType();
 
             if (resultType == null) {
                 resultType = new BaseType(TypeEnum.VOID);
             }
-            if (!resultType.equals(methodNode.getType())) {
-                errors.add(new TypeMismatchException("Method-Declaration " + methodNode.getIdentifier() + " with type "
-                        + methodNode.getType() + " has at least one Mismatching return Type:"));
-                valid = false;
+            if (methodNode.getType() == null) {
+                methodNode.setType(new BaseType(TypeEnum.VOID));
             }
 
             return new TypeCheckResult(valid, resultType);
-
-        }
     }
 
     @Override
     public TypeCheckResult analyze(FieldNode toCheck) {
+        if (toCheck.type instanceof ReferenceType referenceType) {
+            if (!context.containsClass(referenceType.getIdentifier())) {
+                errors.add(new NotDeclaredException(referenceType.getIdentifier() + " not declared"));
+            }
+        }
         if (currentFields.get(toCheck.identifier) != null) {
-            errors.add(new AlreadyDeclearedException("Already declared " + toCheck.identifier));
+            errors.add(new AlreadyDeclaredException("Already declared " + toCheck.identifier));
             return new TypeCheckResult(false, null);
         } else {
             currentFields.put(toCheck.identifier, toCheck.type);
@@ -174,43 +170,65 @@ public class SemanticAnalyzer implements SemanticVisitor {
 
     @Override
     public TypeCheckResult analyze(IfNode toCheck) {
+        toCheck.block.accept(this);
+
+        var resultExpression = toCheck.expression.accept(this);
+        if (resultExpression.isValid()) {
+            if (!resultExpression.getType().equals(new BaseType(TypeEnum.BOOL))) {
+                errors.add(new TypeMismatchException("Expression must be Boolean"));
+                return new TypeCheckResult(false, new BaseType(TypeEnum.VOID));
+            }
+        }
+
         return new TypeCheckResult(true, null);
     }
 
     @Override
     public TypeCheckResult analyze(ReturnNode toCheck) {
-
-        if(toCheck.expression != null){
+        if (toCheck.expression != null) {
             var result = toCheck.expression.accept(this);
+            if (result.isValid()) {
+                if (!result.getType().equals(currentMethodReturnType)) {
+                    errors.add(new TypeMismatchException("Mismatched return Type from method"));
+                }
+            }
             return new TypeCheckResult(true, result.getType());
-        } else {
-            return new TypeCheckResult(false, null);
+        } else if (toCheck.voidReturn) {
+            return new TypeCheckResult(true, new BaseType(TypeEnum.VOID));
         }
+        return new TypeCheckResult(true, null);
 
     }
 
     @Override
     public TypeCheckResult analyze(WhileNode toCheck) {
-        return null;
+        var expResult = toCheck.expression.accept(this);
+        var blockRes = toCheck.block.accept(this);
+        return new TypeCheckResult(expResult.isValid() && blockRes.isValid(), blockRes.getType());
     }
 
     @Override
     public TypeCheckResult analyze(ParameterNode toCheck) {
-
-
-        return new TypeCheckResult(true, null);
+        return new TypeCheckResult(true, toCheck.type);
     }
 
     @Override
     public TypeCheckResult analyze(BlockNode blockNode) {
         ITypeNode blockReturnType = null;
+        if (blockNode.statements.isEmpty()) {
+            return new TypeCheckResult(true, null);
+        }
         for (IStatementNode statementNode : blockNode.statements) {
             var result = statementNode.accept(this);
-            if(result.getType() != null){
-                if(blockReturnType == null){
-                    blockReturnType = result.getType();
-                } else {
-                    errors.add(new MultipleReturnTypes("There are multiple Return types"));
+            if (!(statementNode instanceof IncrementNode) && !(statementNode instanceof DecrementNode)) {
+                if (result.getType() != null) {
+                    if (blockReturnType == null) {
+                        blockReturnType = result.getType();
+                    } else {
+                        if (!blockReturnType.equals(result.getType())) {
+                            errors.add(new MultipleReturnTypes("There are multiple Return types"));
+                        }
+                    }
                 }
             }
         }
@@ -219,20 +237,35 @@ public class SemanticAnalyzer implements SemanticVisitor {
 
     @Override
     public TypeCheckResult analyze(AssignableNode toCheck) {
-        return new TypeCheckResult(true, currentFields.get(toCheck.identifier));
 
+        if (toCheck.memberAccess != null) {
+            var result = toCheck.memberAccess.accept(this);
+            toCheck.identifier = toCheck.memberAccess.identifiers.getLast();
+            toCheck.setTypeNode(result.getType());
+            return result;
+        } else {
+            if (currentFields.get(toCheck.identifier) != null) {
+                var type = currentFields.get(toCheck.identifier);
+                MemberAccessNode memberAccessNode = new MemberAccessNode(false);
+                memberAccessNode.identifiers.add(currentClass.identifier);
+                memberAccessNode.identifiers.add(toCheck.identifier);
+                toCheck.memberAccess = memberAccessNode;
+                toCheck.setTypeNode(type);
+                return new TypeCheckResult(true, type);
+            } else if (currentScope.getLocalVar(toCheck.identifier) != null) {
+                var type = currentScope.getLocalVar(toCheck.identifier);
+                toCheck.setTypeNode(type);
+                return new TypeCheckResult(true, type);
+            }
+        }
+        return new TypeCheckResult(true, null);
     }
 
     @Override
     public TypeCheckResult analyze(ElseNode toCheck) {
-        return null;
+        return toCheck.block.accept(this);
     }
 
-    /*@Override
-    public TypeCheckResult analyze(ForNode toCheck) {
-        return null;
-    }*/
-
     @Override
     public TypeCheckResult analyze(AssignNode toCheck) {
         AssignableNode assignable = toCheck.assignable;
@@ -242,13 +275,6 @@ public class SemanticAnalyzer implements SemanticVisitor {
         currentNullType = oldNullType;
         var valid = true;
 
-        // This check currently handles things like :
-        /**
-         * private int i;
-         * void foo(int i){
-         * i = i;
-         * }
-         */
         if (assignable.equals(rExpression)) {
             errors.add(new TypeMismatchException("Cannot assign to self"));
             valid = false;
@@ -258,33 +284,117 @@ public class SemanticAnalyzer implements SemanticVisitor {
         currentNullType = lResult.getType();
         var rResult = rExpression.accept(this);
 
-        if (!Objects.equals(currentScope.getLocalVar(toCheck.assignable.identifier), rExpression.getType())) {
+        if (!Objects.equals(lResult.getType(), rResult.getType())) {
             errors.add(new TypeMismatchException(
                     "Mismatch types in Assign-Statement: cannot convert from \"" + lResult.getType() + "\" to \""
                             + rResult.getType() + "\""));
             valid = false;
         }
-//        else {
-//            toCheck.setType(assignable.getType());
-//        }
         valid = valid && lResult.isValid() && rResult.isValid();
         currentNullType = null;
         return new TypeCheckResult(valid, null); // return type is null to get the return type sufficently
     }
 
     @Override
-    public TypeCheckResult analyze(DecrementNode toCheck) {
-        return null;
+    public TypeCheckResult analyze(DecrementNode decrementNode) {
+        return decrementNode.assignableExpression.accept(this);
     }
 
     @Override
     public TypeCheckResult analyze(IfElseNode toCheck) {
-        return new TypeCheckResult(true, null);
+        var resultIf = toCheck.ifStatement.accept(this);
+        var validElseIf = true;
+
+        if(!toCheck.elseIfStatements.isEmpty()) {
+            for(IfNode ifNode : toCheck.elseIfStatements) {
+                var resultIfFor = ifNode.accept(this);
+                validElseIf = validElseIf && resultIfFor.isValid();
+            }
+        }
+
+        if(toCheck.elseStatement != null){
+            var resultElse = toCheck.elseStatement.accept(this);
+            return new TypeCheckResult(resultIf.isValid() && resultElse.isValid() && validElseIf, new BaseType(TypeEnum.VOID));
+        }
+
+
+        return new TypeCheckResult(resultIf.isValid(), new BaseType(TypeEnum.VOID));
     }
 
     @Override
     public TypeCheckResult analyze(MethodCallNode toCheck) {
-        return null;
+
+        if (toCheck.target != null) {
+            if(toCheck.target.memberAccess == null){
+                MemberAccessNode memberAccessNode = new MemberAccessNode(false);
+                memberAccessNode.identifiers.add(currentClass.identifier);
+                memberAccessNode.identifiers.add(toCheck.target.identifier);
+                toCheck.target.memberAccess = memberAccessNode;
+            }
+            if (toCheck.target.identifier != null) {
+                var targetType = currentScope.getLocalVar(toCheck.target.identifier);
+                if (targetType == null) {
+                    targetType = currentFields.get(toCheck.target.identifier);
+                }
+                if (targetType instanceof ReferenceType reference) {
+                    if (!toCheck.chainedMethods.isEmpty()) {
+                        for (ChainedMethodNode chainedMethod : toCheck.chainedMethods) {
+                            var type = getTypeFromMethod(chainedMethod, reference);
+                            if (type instanceof ReferenceType referenceType)
+                                reference = referenceType;
+                            else
+                                errors.add(new TypeMismatchException("Ein Basetyp hat keine funktionen"));
+                        }
+                    }
+                    var type = getTypeFromMethod(toCheck, reference);
+                    if (type != null) {
+                        return new TypeCheckResult(true, type);
+                    } else {
+                        return new TypeCheckResult(false, null);
+                    }
+
+                }
+            } else {
+                if (toCheck.target.thisTar != null) {
+                    if (toCheck.target.thisTar) {
+                        var type = getTypeFromMethod(toCheck, new ReferenceType(currentClass.identifier));
+                        if (type != null) {
+                            toCheck.type = type;
+                            return new TypeCheckResult(true, type);
+                        }
+                    }
+                } else {
+                    var result = toCheck.target.accept(this);
+                    if (result.getType() instanceof ReferenceType reference) {
+                        return new TypeCheckResult(true, getTypeFromMethod(toCheck, reference));
+                    }
+                }
+            }
+        } else {
+            if(toCheck.identifier != null) {
+                toCheck.target = new TargetNode(new MemberAccessNode(false));
+                toCheck.target.memberAccess.identifiers.add(currentClass.identifier);
+            }
+
+            ReferenceType reference = new ReferenceType(currentClass.identifier);
+            if (!toCheck.chainedMethods.isEmpty()) {
+                for (ChainedMethodNode chainedMethod : toCheck.chainedMethods) {
+                    var type = getTypeFromMethod(chainedMethod, reference);
+                    if (type instanceof ReferenceType referenceType)
+                        reference = referenceType;
+                    else
+                        errors.add(new TypeMismatchException("Ein Basetyp hat keine funktionen"));
+                }
+            }
+            var type = getTypeFromMethod(toCheck, reference);
+            if (type != null) {
+                return new TypeCheckResult(true, type);
+            } else {
+                return new TypeCheckResult(false, null);
+            }
+        }
+
+        return new TypeCheckResult(false, null);
     }
 
     @Override
@@ -295,6 +405,9 @@ public class SemanticAnalyzer implements SemanticVisitor {
             TypeCheckResult result = localVarDecl.expression.accept(this);
 
             var resultType = localVarDecl.expression.getType();
+            if (result.getType() != null) {
+                resultType = result.getType();
+            }
             valid = result.isValid() && valid;
 
             if (!Objects.equals(resultType, localVarDecl.type)) {
@@ -316,12 +429,19 @@ public class SemanticAnalyzer implements SemanticVisitor {
 
     @Override
     public TypeCheckResult analyze(NewDeclarationNode toCheck) {
-        return null;
+        if (context.containsClass(toCheck.identifier)) {
+            for(var t : toCheck.expressions) {
+                t.accept(this);
+            }
+            return new TypeCheckResult(true, new ReferenceType(toCheck.identifier));
+        } else {
+            throw new RuntimeException("Cannot find class " + toCheck.identifier);
+        }
     }
 
     @Override
     public TypeCheckResult analyze(IncrementNode toCheck) {
-        return null;
+        return toCheck.assignableExpression.accept(this);
     }
 
     @Override
@@ -332,38 +452,317 @@ public class SemanticAnalyzer implements SemanticVisitor {
     @Override
     public TypeCheckResult analyze(CalculationNode calcNode) {
         if (calcNode.calculationExpression != null) {
-            calcNode.calculationExpression.accept(this);
+            var calcRes = calcNode.calculationExpression.accept(this);
+            if (calcNode.dotExpression != null) {
+                var dotRes = calcNode.dotExpression.accept(this);
+
+                switch (calcNode.operator) {
+                    case PLUS, MINUS:
+                        if (calcRes.getType() instanceof BaseType calcType && dotRes.getType() instanceof BaseType dotType &&
+                                calcType.getTypeEnum().equals(TypeEnum.INT) && dotType.getTypeEnum().equals(TypeEnum.INT)) {
+                            calcNode.setType(new BaseType(TypeEnum.INT));
+                            return new TypeCheckResult(true, new BaseType(TypeEnum.INT));
+                        }
+                        break;
+                    default:
+                }
+
+            } else {
+                calcNode.setType(calcNode.getType());
+                return new TypeCheckResult(calcRes.isValid(), calcRes.getType());
+            }
+        } else if (calcNode.dotExpression != null) {
+            var dotRes = calcNode.dotExpression.accept(this);
+            calcNode.setType(dotRes.getType());
+            return new TypeCheckResult(dotRes.isValid(), dotRes.getType());
+        }
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(DotNode toCheck) {
+        if (toCheck.dotSubtractionExpression != null) {
+            var result = toCheck.dotSubtractionExpression.accept(this);
+            toCheck.setType(result.getType());
+            return result;
+        }
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(DotSubtractionNode toCheck) {
+        if (toCheck.value != null) {
+            var result = toCheck.value.accept(this);
+            toCheck.setType(result.getType());
+            return result;
+        } else if (toCheck.memberAccess != null) {
+            var result = toCheck.memberAccess.accept(this);
+            toCheck.setType(result.getType());
+            return result;
+        } else if (toCheck.methodCall != null) {
+            var result = toCheck.methodCall.accept(this);
+            toCheck.setType(result.getType());
+            return result;
+        } else if (toCheck.identifier != null) {
+            if (currentScope.contains(toCheck.identifier)) {
+                var type = currentScope.getLocalVar(toCheck.identifier);
+                toCheck.setType(type);
+                return new TypeCheckResult(true, type);
+            } else if (currentFields.get(toCheck.identifier) != null) {
+                var type = currentFields.get(toCheck.identifier);
+                toCheck.setType(type);
+                MemberAccessNode memberAccessNode = new MemberAccessNode(false);
+                memberAccessNode.identifiers.add(currentClass.identifier);
+                memberAccessNode.identifiers.add(toCheck.identifier);
+                toCheck.memberAccess = memberAccessNode;
+                return new TypeCheckResult(true, type);
+            }
+        } else if (toCheck.calculationExpression != null) {
+            var result = toCheck.calculationExpression.accept(this);
+            toCheck.setType(result.getType());
+            return result;
         }
         return null;
     }
 
     @Override
-    public TypeCheckResult analyze(DotNode toCheck) {
-        return null;
-    }
+    public TypeCheckResult analyze(NonCalculationNode nonCalculationNode) {
+        var expResult = nonCalculationNode.expression.accept(this);
+        var unaryResult = nonCalculationNode.unaryExpression.accept(this);
 
-    @Override
-    public TypeCheckResult analyze(DotSubstractionNode toCheck) {
-        return null;
-    }
+        switch (nonCalculationNode.operator) {
+            case LESS, LESS_EQUAL, GREATER, GREATER_EQUAL:
+                if (expResult.getType() instanceof BaseType expResultType && expResultType.getTypeEnum().equals(TypeEnum.INT) &&
+                        unaryResult.getType() instanceof BaseType unaryResultType && unaryResultType.getTypeEnum().equals(TypeEnum.INT)) {
+                    ITypeNode type = new BaseType(TypeEnum.BOOL);
+                    nonCalculationNode.setType(type);
+                    return new TypeCheckResult(true, type);
+                } else {
+                    errors.add(new TypeMismatchException("Both types must be Integer"));
+                }
+                break;
+            case OR, AND:
+                if (expResult.getType() instanceof BaseType expResultType && expResultType.getTypeEnum().equals(TypeEnum.BOOL) &&
+                        unaryResult.getType() instanceof BaseType unaryResultType && unaryResultType.getTypeEnum().equals(TypeEnum.BOOL)) {
+                    ITypeNode type = new BaseType(TypeEnum.BOOL);
+                    nonCalculationNode.setType(type);
+                    return new TypeCheckResult(true, type);
+                } else {
+                    errors.add(new TypeMismatchException("Both types must be Boolean"));
+                }
+                break;
+            case EQUAL, NOT_EQUAL:
+                if (expResult.getType() instanceof BaseType expResultType && unaryResult.getType() instanceof BaseType unaryResultType
+                        && Objects.equals(expResultType, unaryResultType)) {
+                    ITypeNode type = new BaseType(TypeEnum.BOOL);
+                    nonCalculationNode.setType(type);
+                    return new TypeCheckResult(true, type);
+                } else {
+                    errors.add(new TypeMismatchException("Both types must be the same"));
+                }
 
-    @Override
-    public TypeCheckResult analyze(NonCalculationNode toCheck) {
-        return null;
+        }
+        return new TypeCheckResult(false, null);
     }
 
     @Override
     public TypeCheckResult analyze(UnaryNode unary) {
         var valid = true;
 
-        if (currentScope.contains(unary.identifier)) {
-            return  new TypeCheckResult(valid, currentScope.getLocalVar(unary.identifier));
-        } else if(currentFields.get(unary.identifier) != null) {
-            return  new TypeCheckResult(valid, currentFields.get(unary.identifier));
-        } else {
-            errors.add(new NotDeclearedException("Var is not Decleared"));
+        if (unary.identifier != null) {
+            if (currentScope.contains(unary.identifier)) {
+                var type = currentScope.getLocalVar(unary.identifier);
+                unary.setType(type);
+                return new TypeCheckResult(valid, type);
+            } else if (currentFields.get(unary.identifier) != null) {
+                MemberAccessNode memberAccessNode = new MemberAccessNode(false);
+                memberAccessNode.identifiers.add(currentClass.identifier);
+                memberAccessNode.identifiers.add(unary.identifier);
+                unary.memberAccess = memberAccessNode;
+                var type = currentFields.get(unary.identifier);
+                unary.setType(type);
+                return new TypeCheckResult(valid,type );
+            } else if (unary.value != null) {
+                var result = unary.value.accept(this);
+                unary.setType(result.getType());
+                return new TypeCheckResult(result.isValid(), result.getType());
+            } else if (unary.statement != null) {
+                var result = unary.statement.accept(this);
+                unary.setType(result.getType());
+                return result;
+            } else {
+                errors.add(new NotDeclaredException("Var is not Declared"));
+            }
+        } else if (unary.statement != null) {
+            var result = unary.statement.accept(this);
+            unary.setType(result.getType());
+            return new TypeCheckResult(result.isValid(), result.getType());
+        } else if (unary.value != null) {
+            var result = unary.value.accept(this);
+            unary.setType(result.getType());
+            return new TypeCheckResult(result.isValid(), result.getType());
+        } else if (unary.memberAccess != null) {
+            var result = unary.memberAccess.accept(this);
+            unary.setType(result.getType());
+            return new TypeCheckResult(result.isValid(), result.getType());
+        } else if (unary.expression != null) {
+            var result = unary.expression.accept(this);
+            unary.setType(result.getType());
+            return new TypeCheckResult(result.isValid(), result.getType());
         }
-        return new TypeCheckResult(valid, null);
+
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(MemberAccessNode memberAccessNode) {
+
+        ITypeNode currentType = null;
+        int start = 0;
+        if(!memberAccessNode.identifiers.isEmpty()){
+            if(currentFields.get(memberAccessNode.identifiers.getFirst()) != null){
+                memberAccessNode.identifiers.addFirst(currentClass.identifier);
+                start++;
+            }
+        }
+        if(context.getClasses().get(memberAccessNode.identifiers.getFirst()) == null){
+            memberAccessNode.identifiers.addFirst(currentClass.identifier);
+            start++;
+        }
+        for (int i = start; i < memberAccessNode.identifiers.size(); i++) {
+
+            String s = memberAccessNode.identifiers.get(i);
+            if (currentType == null) {
+                if (currentScope.getLocalVar(s) != null) {
+                    currentType = currentScope.getLocalVar(s);
+                } else if (currentFields.get(s) != null) {
+                    currentType = currentFields.get(s);
+                } else {
+                    errors.add(new NotDeclaredException(s + "Not Declared"));
+                    return new TypeCheckResult(false, null);
+                }
+
+            } else {
+                if (currentType instanceof ReferenceType reference) {
+                    var currentTypeClass = context.getClass(reference.getIdentifier());
+                    memberAccessNode.identifiers.add(i, reference.getIdentifier());
+                    i++;
+                    var currentField = currentTypeClass.getField(s);
+                    if (currentField.getAccessModifier().accessType == EnumAccessModifierNode.PUBLIC) {
+                        currentType = currentField.getType();
+                    } else {
+                        errors.add(new NotVisibleException("This field is not visible"));
+                        return new TypeCheckResult(false, null);
+                    }
+                }
+            }
+
+        }
+        memberAccessNode.setTypeNode(currentType);
+        return new TypeCheckResult(true, currentType);
+    }
+
+    @Override
+    public TypeCheckResult analyze(TargetNode targetNode) {
+
+        if (targetNode.memberAccess != null) {
+            return targetNode.memberAccess.accept(this);
+        } else if(targetNode.identifier != null) {
+            MemberAccessNode memberAccessNode = new MemberAccessNode(false);
+            memberAccessNode.identifiers.add(currentClass.identifier);
+            memberAccessNode.identifiers.add(targetNode.identifier);
+            targetNode.memberAccess = memberAccessNode;
+        }
+        return null;
+    }
+
+    @Override
+    public TypeCheckResult analyze(ValueNode valueNode) {
+
+        switch (valueNode.valueType) {
+            case INT_VALUE -> {
+                return new TypeCheckResult(true, new BaseType(TypeEnum.INT));
+            }
+            case CHAR_VALUE -> {
+                valueNode.value = valueNode.value.replace("'", "");
+                return new TypeCheckResult(true, new BaseType(TypeEnum.CHAR));
+            }
+            case BOOLEAN_VALUE -> {
+                return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+            }
+            default -> {
+                return new TypeCheckResult(false, null);
+            }
+        }
+    }
+
+    private ITypeNode getTypeFromMethod(MethodCallNode toCheck, ReferenceType reference) {
+        var classContext = context.getClass(reference.getIdentifier());
+
+        if (classContext == null) {
+            errors.add(new NotDeclaredException(toCheck.target.identifier + "is not Defined"));
+        } else {
+            var methods = classContext.getMethods();
+            for (var method : methods) {
+                if (toCheck.identifier.equals(method.getIdentifier())) {
+                    if (method.getParameters().size() == toCheck.parameters.size() && !(method instanceof ConstructorNode)) {
+                        boolean same = true;
+                        for (int i = 0; i < method.getParameters().size(); i++) {
+                            var result1 = method.getParameters().get(i).accept(this);
+                            var result2 = toCheck.parameters.get(i).accept(this);
+                            if (!Objects.equals(result1.getType(), result2.getType())) {
+                                same = false;
+                            }
+                        }
+                        if (same) {
+                            if (method.accesModifier.accessType == EnumAccessModifierNode.PUBLIC) {
+                                if (method.getType() == null) {
+                                    return new BaseType(TypeEnum.VOID);
+                                }
+                                return method.getType();
+                            } else {
+                                errors.add(new NotVisibleException("This Method is not Visible"));
+                            }
+                        }
+                    }
+                }
+            }
+            errors.add(new WrongOverloading("No Method found with this parameters"));
+        }
+        return null;
+    }
+
+    private ITypeNode getTypeFromMethod(ChainedMethodNode toCheck, ReferenceType reference) {
+        var classContext = context.getClass(reference.getIdentifier());
+
+        var methods = classContext.getMethods();
+        for (var method : methods) {
+            if (toCheck.identifier.equals(method.getIdentifier())) {
+                if (method.getParameters().size() == toCheck.expressions.size() && !(method instanceof ConstructorNode)) {
+                    boolean same = true;
+                    for (int i = 0; i < method.getParameters().size(); i++) {
+                        var result1 = method.getParameters().get(i).accept(this);
+                        var result2 = toCheck.expressions.get(i).accept(this);
+                        if (!Objects.equals(result1.getType(), result2.getType())) {
+                            same = false;
+                        }
+                    }
+                    if (same) {
+                        if (method.accesModifier.accessType == EnumAccessModifierNode.PUBLIC) {
+                            if (method.getType() == null) {
+                                return new BaseType(TypeEnum.VOID);
+                            }
+                            return method.getType();
+                        } else {
+                            errors.add(new NotVisibleException("This Method is not Visible"));
+                        }
+
+                    }
+                }
+            }
+        }
+
+        return null;
     }
 
 }

src/main/java/semantic/SemanticVisitor.java

@@ -2,6 +2,7 @@ package semantic;
 
 import ast.*;
 import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
 import ast.expressions.unaryexpressions.UnaryNode;
 import ast.members.*;
 import ast.parameters.ParameterNode;
@@ -11,8 +12,9 @@ import ast.statementexpressions.NewDeclarationNode;
 import ast.statementexpressions.crementexpressions.DecrementNode;
 import ast.statementexpressions.crementexpressions.IncrementNode;
 import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
 import ast.statements.*;
-import typechecker.TypeCheckResult;
+import ast.type.ValueNode;
 
 public interface SemanticVisitor {
 
@@ -38,8 +40,6 @@ public interface SemanticVisitor {
 
     TypeCheckResult analyze(ElseNode toCheck);
 
-    //TypeCheckResult analyze(ForNode toCheck);
-
     TypeCheckResult analyze(AssignNode toCheck);
 
     TypeCheckResult analyze(DecrementNode toCheck);
@@ -60,10 +60,16 @@ public interface SemanticVisitor {
 
     TypeCheckResult analyze(DotNode toCheck);
 
-    TypeCheckResult analyze(DotSubstractionNode toCheck);
+    TypeCheckResult analyze(DotSubtractionNode toCheck);
 
     TypeCheckResult analyze(NonCalculationNode toCheck);
 
     TypeCheckResult analyze(UnaryNode toCheck);
 
+    TypeCheckResult analyze(MemberAccessNode toCheck);
+
+    TypeCheckResult analyze(TargetNode toCheck);
+
+    TypeCheckResult analyze(ValueNode toCheck);
+
 }

src/main/java/semantic/TypeCheckResult.java

@@ -1,23 +1,23 @@
-package typechecker;
-
-
-import ast.type.type.ITypeNode;
-
-public class TypeCheckResult {
-
-  private boolean valid;
-  private ITypeNode type;
-
-  public TypeCheckResult(boolean valid, ITypeNode type) {
-    this.valid = valid;
-    this.type = type;
-  }
-
-  public boolean isValid() {
-    return valid;
-  }
-
-  public ITypeNode getType() {
-    return type;
-  }
+package semantic;
+
+
+import ast.type.type.ITypeNode;
+
+public class TypeCheckResult {
+
+  private final boolean valid;
+  private final ITypeNode type;
+
+  public TypeCheckResult(boolean valid, ITypeNode type) {
+    this.valid = valid;
+    this.type = type;
+  }
+
+  public boolean isValid() {
+    return valid;
+  }
+
+  public ITypeNode getType() {
+    return type;
+  }
 }

src/main/java/semantic/context/ClassContext.java

@@ -2,11 +2,15 @@ package semantic.context;
 
 import ast.ClassNode;
 import ast.members.FieldNode;
+import ast.members.MethodNode;
+
+import java.util.ArrayList;
 import java.util.HashMap;
 
 public class ClassContext {
 
-  private HashMap<String, FieldContext> fields;
+  private final HashMap<String, FieldContext> fields;
+  private final ArrayList<MethodNode> methods = new ArrayList<>();
 
   public ClassContext(ClassNode classNode) {
 
@@ -15,6 +19,8 @@ public class ClassContext {
     classNode.members.forEach(member -> {
       if(member instanceof FieldNode fieldNode) {
         fields.put(fieldNode.identifier, new FieldContext(fieldNode));
+      }else if(member instanceof MethodNode methodNode) {
+        methods.add(methodNode);
       }
     });
 
@@ -24,4 +30,8 @@ public class ClassContext {
     return fields.get(name);
   }
 
+  public ArrayList<MethodNode> getMethods() {
+    return methods;
+  }
+
 }

src/main/java/semantic/context/Context.java

@@ -5,7 +5,7 @@ import java.util.HashMap;
 
 public class Context {
 
-  private HashMap<String, ClassContext> classes;
+  private final HashMap<String, ClassContext> classes;
 
   public Context(ProgramNode programNode) {
     classes = new HashMap<>();
@@ -21,4 +21,12 @@ public class Context {
     return classes.get(identifier);
   }
 
+  public HashMap<String, ClassContext> getClasses() {
+    return classes;
+  }
+
+  public boolean containsClass(String identifier) {
+    return classes.containsKey(identifier);
+  }
+
 }

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

@@ -6,8 +6,8 @@ import ast.type.type.*;
 
 public class FieldContext {
 
-  private AccessModifierNode accessModifier;
-  private ITypeNode type;
+  private final AccessModifierNode accessModifier;
+  private final ITypeNode type;
 
   public FieldContext(FieldNode field) {
     accessModifier = field.accessTypeNode;
@@ -18,4 +18,8 @@ public class FieldContext {
     return type;
   }
 
+  public AccessModifierNode getAccessModifier() {
+    return accessModifier;
+  }
+
 }

src/main/java/semantic/exceptions/AlreadyDeclaredException.java

@@ -0,0 +1,9 @@
+package semantic.exceptions;
+
+public class AlreadyDeclaredException extends RuntimeException {
+
+    public AlreadyDeclaredException(String message) {
+        super(message);
+    }
+
+}

src/main/java/semantic/exceptions/AlreadyDefinedException.java

@@ -1,4 +1,4 @@
-package semantic.exeptions;
+package semantic.exceptions;
 
 public class AlreadyDefinedException extends RuntimeException {
 

src/main/java/semantic/exceptions/MultipleReturnTypes.java

@@ -1,4 +1,4 @@
-package semantic.exeptions;
+package semantic.exceptions;
 
 public class MultipleReturnTypes extends RuntimeException {
 

src/main/java/semantic/exceptions/NotDeclaredException.java

@@ -0,0 +1,9 @@
+package semantic.exceptions;
+
+public class NotDeclaredException extends RuntimeException {
+
+    public NotDeclaredException(String message) {
+        super(message);
+    }
+
+}

src/main/java/semantic/exceptions/NotVisibleException.java

@@ -0,0 +1,9 @@
+package semantic.exceptions;
+
+public class NotVisibleException extends RuntimeException {
+
+    public NotVisibleException(String message) {
+        super(message);
+    }
+
+}

src/main/java/semantic/exceptions/TypeMismatchException.java

@@ -1,4 +1,4 @@
-package semantic.exeptions;
+package semantic.exceptions;
 
 public class TypeMismatchException extends RuntimeException {
 

src/main/java/semantic/exceptions/UnknownException.java

@@ -0,0 +1,9 @@
+package semantic.exceptions;
+
+public class UnknownException extends RuntimeException {
+
+    public UnknownException(String message) {
+        super(message);
+    }
+
+}

src/main/java/semantic/exceptions/WrongOverloading.java

@@ -0,0 +1,9 @@
+package semantic.exceptions;
+
+public class WrongOverloading extends RuntimeException {
+
+    public WrongOverloading(String message) {
+        super(message);
+    }
+
+}

src/main/java/semantic/exeptions/AlreadyDeclearedException.java

@@ -1,9 +0,0 @@
-package semantic.exeptions;
-
-public class AlreadyDeclearedException extends RuntimeException {
-
-    public AlreadyDeclearedException(String message) {
-        super(message);
-    }
-
-}

src/main/java/semantic/exeptions/NotDeclearedException.java

@@ -1,9 +0,0 @@
-package semantic.exeptions;
-
-public class NotDeclearedException extends RuntimeException {
-
-    public NotDeclearedException(String message) {
-        super(message);
-    }
-
-}

src/main/java/visitor/Visitable.java

@@ -4,7 +4,7 @@ import bytecode.visitor.ClassVisitor;
 import bytecode.visitor.MethodVisitor;
 import bytecode.visitor.ProgramVisitor;
 import semantic.SemanticVisitor;
-import typechecker.TypeCheckResult;
+import semantic.TypeCheckResult;
 
 public interface Visitable {
     default void accept(ProgramVisitor programVisitor) {

src/main/resources/META-INF/MANIFEST.MF

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: main.Main
+

src/main/resources/input/CompilerInput.java

@@ -1,14 +1,63 @@
-public class Compiler {
-    public int add(int i, int j) {
-        return i+j;
+public class CompilerInput {
+    public int ps;
+    public char brand;
+    public int tires;
+    public int drivenKilometers;
+
+    public CompilerInput(int horsePower) {
+        this.ps = horsePower;
+        this.tires = 4;
+    }
+
+    public int getTires() {
+        return this.tires;
+    }
+
+    public boolean isSuperCar() {
+        if(this.ps > 300) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public void tune(int horsePower) {
+        this.ps = this.ps + horsePower;
+    }
+
+    public void tune() {
+        this.ps = this.ps + 50;
+    }
+
+    public void driveCircels(int circels) {
+        for(int i = 0; i < circels; i++) {
+            this.drivenKilometers = this.drivenKilometers + 5;
+        }
+    }
+
+    public void isTunable(boolean hasEngine, boolean hasTires) {
+        if(hasEngine && hasTires) {
+            this.tune(5);
+        }
+    }
+
+    public char race() {
+        int enemyHorsePower = 200;
+        char win = 'W';
+        char lose = 'L';
+        CompilerInput enemy = new CompilerInput(ps);
+        if(this.ps > enemyHorsePower) {
+            return win;
+        } else {
+            return lose;
+        }
+    }
+
+    public int refuel(int currentTank, int maxTank){
+        int tank = currentTank;
+        do{
+            tank++;
+        }while(tank<maxTank);
+        return tank;
     }
 }
-
-public class Node {
-    public void main() {
-        Compiler compiler = new Compiler();
-        int i = compiler.add(5, 8);
-        return i;
-    }
-}
-

src/test/Makefile

@@ -2,28 +2,30 @@
 ### IntelliJs play buttons do not work. Run in "src/test" folder with "make" command to run all
 ### Or run only parts with "make compile-javac", "make clean" etc.
 
-all: compile-javac compile-raupenpiler
+all: compile-javac compile-miniCompiler
 
 compile-javac:
-	javac -d .\resources\output\javac .\resources\input\CompilerInput.java
+	javac -d .\resources\output\javac ..\main\resources\input\CompilerInput.java
 
-compile-raupenpiler:
+compile-miniCompiler:
 	cd ../.. ; mvn -DskipTests install
-	cd ../.. ; mvn exec:java -Dexec.mainClass="main.Main"  -Dexec.args="'src/main/resources/input/CompilerInput.java' 'src/main/resources/output' "
-
-test: test-javac test-raupenpiler
-
-test-javac:
-	#compile-javac
-	#java -cp .\resources\output\javac CompilerInput
-
-test-raupenpiler:
-	#java -cp .\resources\output\raupenpiler CompilerInput
+	cd ../.. ; mvn exec:java -DgenJar=true -DgenClass=true -Dexec.mainClass="main.Main"  -Dexec.args="'src/main/resources/input/CompilerInput.java' 'src/main/resources/output'"
+	cp ..\main\resources\output\CompilerInput.class .\resources\output\miniCompiler
 
 clean:
-	rm -f ./resources/output/javac/*.class
-	rm -f ./resources/output/raupenpiler/*.class
-	rm -f ./java/*.class
+	# clean main output folders
 	rm -f ../main/resources/output/*.class
-	rm -f ../main/resources/logs/*.log
+	rm -f ../main/resources/output/*.jar
+	# clean resources output folders
+	rm -f ./resources/output/javac/*.class
+	rm -f ./resources/output/miniCompiler/*.class
+	rm -f ./resources/output/miniCompiler/*.jar
+	# clean logs
+	rm -f ../main/resources/logs/*
+	# clean test/java/main folders from .class files for End-to-End tests
+	rm -f ./java/main/*.class
+	# clean javac output from every folder
+	rm -f ./resources/input/*/*.class
+	# clean test results from maven surefire plugin
+	rm -f ../../target/surefire-reports/*.txt
 

src/test/TestSpecs.md

@@ -1,92 +0,0 @@
-# Scanner
-
-## Scanner Input
-
-### Beispiel 1: Empty Class
-
-    String empty class = "public class Name {}";
-
-### Beispiel 2: Filled Class
-
-    String filled class = 
-            "class javaFileInput.Example {" +
-            "if (x < 5) {" +
-            "for (int i = 0; i < 10; i++) {" +
-            "while (true) {" +
-            "x = 5;" +
-            "}"
-
-## Scanner Output
-
-CommonTokenStream
-
-### Beispiel 1: Empty Class
-
-Token Type; Token Text
-Type gibts nur bei Terminalen, Text bei allen
-
-    [null "public", null "class", IDENTIFIER "Name", null "{", null "}", EOF "<EOF>"]
-
-    Bsp von Ihm mal:
-    [TokPublic,TokClass,TokIdentifier "Name",TokLeftBrace,TokRightBrace]
-
-# Parser
-
-## Parser Input
-
-CommonTokenStream
-(Scanner Output)
-
-## Parser Output (AST)
-
-(program (classDeclaration (accessType public) class Name { }))
-
-ParseTree
-
-### Beispiel 1: Empty Class
-
-# Semantische Analyse / Typcheck
-
-## Typcheck Input
-
-(Parser Output = AST)
-
-## Typcheck Output
-
-### Beispiel 1: Empty Class
-
-# Bytecodegenerierung
-
-## Bytecodegenerierung Input
-
-(Typcheck Output = vom Typcheck eventuell manipulierter AST)
-
-## Bytecodegenerierung Output
-
-### Beispiel 1: Empty Class
-
-Compiled Classfile
-
-    public class javaFileInput.Example {
-    }
-
-## E2E Tests:
-
-- Testdatei mit Main ausführen/kompilieren
-- Testdatei mit "javac -d output .\CompilerInput.java" kompilieren
-- -> Dateien mit javap vergleichen
-
-wenn beides erfolgreich
-
-- Ergebnis vom eigenen Compiler mithilfe von main.TestCompilerOutput ausführen
-- (Ergebnis von javac mithilfe von main.TestCompilerOutput ausführen)
-
-### Andis Tipps:
-
-- cp mitgeben
-- makefile
-- java -jar pfadtocompiler.jar EmptyClass.java
-- mvn package
-- javac tester // tester compilen
-- java tester // tester ausführen
-- -> tester ist in unserem Fall main.TestCompilerOutput.java

src/test/java/main/E2EReflectionsTest.java

@@ -0,0 +1,209 @@
+package main;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import javax.tools.JavaCompiler;
+import javax.tools.ToolProvider;
+
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class E2EReflectionsTest {
+
+    @Test
+    public void CharTest() {
+        runTest("Char");
+    }
+
+    @Test
+    public void CommentsTest() {
+        runTest("Comments");
+    }
+
+    @Test
+    public void ConstructorMethodCallTest() {
+        runTest("ConstructorMethodCall");
+    }
+
+    @Test
+    public void ConstructorMethodCallParametersTest() {
+        runTest("ConstructorMethodCallParameters");
+    }
+
+    @Test
+    public void ConstructorParameterTest() {
+        runTest("ConstructorParameter");
+    }
+
+    @Test
+    public void ConstructorThisDotTest() {
+        runTest("ConstructorThisDot");
+    }
+
+    @Test
+    public void DoWhileTest() {
+        runTest("DoWhile");
+    }
+
+    @Test
+    public void EmptyClassTest() {
+        runTest("EmptyClass");
+    }
+
+    @Test
+    public void EmptyClassWithConstructorTest() {
+        runTest("EmptyClassWithConstructor");
+    }
+
+    @Test
+    public void FieldTest() {
+        runTest("Field");
+    }
+
+    @Test
+    public void FieldWithAccessModifierTest() {
+        runTest("FieldWithAccessModifier");
+    }
+
+    @Test
+    public void ForTest() {
+        runTest("For");
+    }
+
+    @Test
+    public void IfTest() {
+        runTest("If");
+    }
+
+    @Test
+    public void IfElseTest() {
+        runTest("IfElse");
+    }
+
+    @Test
+    public void IfElseIfElseTest() {
+        runTest("IfElseIfElse");
+    }
+
+    @Test
+    public void IncrementTest() {
+        runTest("Increment");
+    }
+
+    @Test
+    public void MainMethodTest() {
+        runTest("MainMethod");
+    }
+
+    @Test
+    public void MultipleClassesTest() {
+        runTest("MultipleClasses");
+    }
+
+    @Test
+    public void ThisDotTest() {
+        runTest("ThisDot");
+    }
+
+    @Test
+    public void VariableCalculationTest() {
+        runTest("VariableCalculation");
+    }
+
+    @Test
+    public void VariableCompareTest() {
+        runTest("VariableCompare");
+    }
+
+    @Test
+    public void VoidMethodTest() {
+        runTest("VoidMethod");
+    }
+
+    @Test
+    public void WhileTest() {
+        runTest("While");
+    }
+
+    // Helper method to eliminate redundancy
+    private void runTest(String fileName) {
+        try {
+            // compile with miniCompiler
+            Main.main(new String[]{"src/test/resources/input/singleFeatureTests/" + fileName + ".java", "src/test/resources/output/miniCompiler"});
+            // Get the system Java compiler
+            JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
+            // Assert that the compiler is available
+            assertNotNull(javac, "Java Compiler is not available");
+            // compile with javac
+            javac.run(null, null, null, "src/test/resources/input/singleFeatureTests/" + fileName + ".java");
+            moveFile("src/test/resources/input/singleFeatureTests/" + fileName + ".class", "src/test/resources/output/javac/" + fileName + ".class");
+
+            // Load the javac class
+            Path javacClassPath = Paths.get("src/test/resources/output/javac");
+            ClassLoader javacClassLoader = new java.net.URLClassLoader(new java.net.URL[]{javacClassPath.toUri().toURL()});
+            Class<?> javacLoadedClass = javacClassLoader.loadClass(fileName);
+
+            // Load the miniCompiler class
+            Path miniCompilerClassPath = Paths.get("src/test/resources/output/miniCompiler");
+            ClassLoader miniCompilerClassLoader = new java.net.URLClassLoader(new java.net.URL[]{miniCompilerClassPath.toUri().toURL()});
+            Class<?> miniCompilerLoadedClass = miniCompilerClassLoader.loadClass(fileName);
+
+            // Class Name
+            assertEquals(fileName, javacLoadedClass.getName());
+            assertEquals(fileName, miniCompilerLoadedClass.getName());
+
+            // Constructors
+            Constructor<?>[] javacConstructors = javacLoadedClass.getDeclaredConstructors();
+            Constructor<?>[] miniCompilerConstructors = miniCompilerLoadedClass.getDeclaredConstructors();
+            assertEquals(javacConstructors.length, miniCompilerConstructors.length);
+            for (Constructor<?> c : javacConstructors) {
+                for (Constructor<?> miniCompilerConstructor : miniCompilerConstructors) {
+                    assertEquals(c.getParameterCount(), miniCompilerConstructor.getParameterCount());
+                    if (c.getParameterCount() == miniCompilerConstructor.getParameterCount()) {
+                        assertEquals(c.getName(), miniCompilerConstructor.getName());
+                    }
+                }
+            }
+
+            // Methods
+            Method[] javacMethods = javacLoadedClass.getDeclaredMethods();
+            Method[] miniCompilerMethods = miniCompilerLoadedClass.getDeclaredMethods();
+            assertEquals(javacMethods.length, miniCompilerMethods.length);
+            for (int i = 0; i < javacMethods.length; i++) {
+                assertEquals(javacMethods[i].getName(), miniCompilerMethods[i].getName());
+                assertEquals(javacMethods[i].getReturnType(), miniCompilerMethods[i].getReturnType());
+                assertEquals(javacMethods[i].getParameterCount(), miniCompilerMethods[i].getParameterCount());
+            }
+
+            // Fields
+            Field[] javacLoadedClassDeclaredFields = javacLoadedClass.getDeclaredFields();
+            Field[] miniCompilerLoadedClassDeclaredFields = miniCompilerLoadedClass.getDeclaredFields();
+            assertEquals(javacLoadedClassDeclaredFields.length, miniCompilerLoadedClassDeclaredFields.length);
+            for (Field field : javacLoadedClassDeclaredFields) {
+                for (Field miniCompilerField : miniCompilerLoadedClassDeclaredFields) {
+                    if (field.getName().equals(miniCompilerField.getName())) {
+                        assertEquals(field.getType(), miniCompilerField.getType());
+                    }
+                }
+            }
+        } catch (ClassNotFoundException | NoSuchFieldException | NoSuchMethodException e) {
+            e.printStackTrace();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    // Helper method to move file
+    public static void moveFile(String sourceFilePath, String destinationFilePath) throws IOException {
+        Path sourcePath = Paths.get(sourceFilePath);
+        Path destinationPath = Paths.get(destinationFilePath);
+        Files.move(sourcePath, destinationPath, StandardCopyOption.REPLACE_EXISTING);
+    }
+}

src/test/java/main/EmptyClassExample.java

@@ -1,6 +0,0 @@
-package main;
-
-public class EmptyClassExample {
-    private class Inner {
-    }
-} // -o für outout

src/test/java/main/FailureTest.java

@@ -1,74 +0,0 @@
-package main;
-
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-import org.antlr.v4.runtime.CharStream;
-import org.antlr.v4.runtime.CharStreams;
-import org.junit.jupiter.api.Test;
-
-import javax.tools.JavaCompiler;
-import javax.tools.ToolProvider;
-import java.io.File;
-import java.io.IOException;
-import java.nio.file.Paths;
-import java.util.Arrays;
-import java.util.List;
-
-public class FailureTest {
-    private static final List<String> TEST_FILES = Arrays.asList(
-            "src/main/test/resources/input/failureTests/TestClass1.java",
-            "src/main/test/resources/input/failureTests/TestClass2.java",
-            "src/main/test/resources/input/failureTests/TestClass3.java",
-            "src/main/test/resources/input/failureTests/TestClass4.java",
-            "src/main/test/resources/input/failureTests/TestClass5.java",
-            "src/main/test/resources/input/failureTests/TestClass6.java",
-            "src/main/test/resources/input/failureTests/TestClass7.java",
-            "src/main/test/resources/input/failureTests/TestClass8.java",
-            "src/main/test/resources/input/failureTests/TestClass9.java",
-            "src/main/test/resources/input/failureTests/TestClass10.java",
-            "src/main/test/resources/input/failureTests/TestClass11.java"
-    );
-
-    /**
-     * This test method checks if invalid Java files fail to compile as expected.
-     * It uses the JavaCompiler from the ToolProvider to compile the files.
-     * The test passes if all the files fail to compile.
-     */
-    @Test
-    public void invalidJavaFilesTest() {
-        // Get the system Java compiler
-        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
-
-        // Assert that the compiler is available
-        assertNotNull(compiler, "Java Compiler is not available");
-
-        // Iterate over the test files
-        for (String fileName : TEST_FILES) {
-            // Create a File object for the current file
-            File file = new File(fileName);
-
-            // Try to compile the file and get the result
-            // The run method returns 0 if the compilation was successful, and non-zero otherwise
-            int result = compiler.run(null, null, null, file.getPath());
-
-            // Assert that the compilation failed (i.e., the result is non-zero)
-            assertTrue(result != 0, "Expected compilation failure for " + fileName);
-        }
-    }
-
-    // schmeißt John Fehler, wenn namen doppelt sind?
-    // Input: ParseTree mit genanntem Fehler
-    // Output: Fehlermeldung
-    @Test
-    void typedASTTest() throws IOException {
-        CharStream codeCharStream = null;
-        try {
-            codeCharStream = CharStreams.fromPath(Paths.get("src/main/test/resources/main/EmptyClassExample.java"));
-            Main.compileFile(codeCharStream, "src/main/test/resources/output");
-        } catch (IOException e) {
-            System.err.println("Error reading the file: " + e.getMessage());
-        }
-    }
-}
-

src/test/java/main/InputFilesTest.java

@@ -0,0 +1,160 @@
+package main;
+
+import org.junit.jupiter.api.Test;
+
+import javax.tools.JavaCompiler;
+import javax.tools.ToolProvider;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class InputFilesTest {
+
+    /**
+     * This test method checks if valid Java files compile successfully.
+     * It uses the JavaCompiler from the ToolProvider to compile the files.
+     * The test passes if all the files compile without errors.
+     */
+    @Test
+    public void areTestFilesActuallyValid() throws IOException {
+        // Get the system Java compiler
+        JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
+        // Assert that the compiler is available
+        assertNotNull(javac, "Java Compiler is not available");
+
+        File combinedFeatureTests = new File("src/test/resources/input/combinedFeatureTests");
+        File endabgabeTests = new File("src/test/resources/input/endabgabeTests");
+        File singleFeatureSemanticTests = new File("src/test/resources/input/singleFeatureSemanticTests");
+        File singleFeatureTests = new File("src/test/resources/input/singleFeatureTests");
+        File typedAstFeatureTests = new File("src/test/resources/input/typedAstFeatureTests");
+        File finalTest = new File("src/test/resources/input/finalTest");
+
+        List<File> files = getJavaFilesFromDirectory(combinedFeatureTests);
+        // files.addAll(getJavaFilesFromDirectory(endabgabeTests));
+        // files.addAll(getJavaFilesFromDirectory(singleFeatureSemanticTests));
+        files.addAll(getJavaFilesFromDirectory(singleFeatureTests));
+        // files.addAll(getJavaFilesFromDirectory(typedAstFeatureTests));
+        //files.addAll(getJavaFilesFromDirectory(finalTest));
+
+        if (!files.isEmpty()) {
+            for (File file : files) {
+                // Try to compile the file and get the result
+                int result = javac.run(null, null, null, file.getPath());
+
+                // Assert that the compilation succeeded (i.e., the result is zero)
+                assertEquals(0, result, "Expected compilation success for " + file.getName());
+            }
+        } else {
+            System.out.println("No files found in the directories.");
+        }
+    }
+
+    @Test
+    public void areCombinedFeatureTestsValid() throws IOException {
+        // Get the system Java compiler
+        JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
+        // Assert that the compiler is available
+        assertNotNull(javac, "Java Compiler is not available");
+
+        File combinedFeatureTests = new File("src/test/resources/input/combinedFeatureTests");
+
+        List<File> files = getJavaFilesFromDirectory(combinedFeatureTests);
+
+        if (!files.isEmpty()) {
+            for (File file : files) {
+                // Try to compile the file and get the result
+                int result = javac.run(null, null, null, file.getPath());
+
+                // Assert that the compilation succeeded (i.e., the result is zero)
+                assertEquals(0, result, "Expected compilation success for " + file.getName());
+            }
+        } else {
+            System.out.println("No files found in the directories.");
+        }
+    }
+
+
+
+    @Test
+    public void areSingleFeatureTestsActuallyValid() throws IOException {
+        // Get the system Java compiler
+        JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
+        // Assert that the compiler is available
+        assertNotNull(javac, "Java Compiler is not available");
+
+        File singleFeatureTests = new File("src/test/resources/input/singleFeatureTests");
+
+        List<File> files = getJavaFilesFromDirectory(singleFeatureTests);
+
+        if (!files.isEmpty()) {
+            for (File file : files) {
+                // Try to compile the file and get the result
+                int result = javac.run(null, null, null, file.getPath());
+
+                // Assert that the compilation succeeded (i.e., the result is zero)
+                assertEquals(0, result, "Expected compilation success for " + file.getName());
+            }
+        } else {
+            System.out.println("No files found in the directories.");
+        }
+    }
+
+
+    /**
+     * This test method checks if invalid Java files fail to compile as expected.
+     * It uses the JavaCompiler from the ToolProvider to compile the files.
+     * The test passes if all the files fail to compile.
+     */
+    @Test
+    public void areTestFilesActuallyFails() throws IOException {
+        // Get the system Java compiler
+        JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
+        // Assert that the compiler is available
+        assertNotNull(javac, "Java Compiler is not available");
+
+
+        File folder1 = new File("src/test/resources/input/failureTests");
+        File folder2 = new File("src/test/resources/input/typedAstExceptionsTest");
+
+        List<File> files = getJavaFilesFromDirectory(folder1);
+        files.addAll(getJavaFilesFromDirectory(folder2));
+
+
+        if (!files.isEmpty()) {
+            for (File file : files) {
+                // Try to compile the file and get the result
+                // The run method returns 0 if the compilation was successful, and non-zero otherwise
+                int result = javac.run(null, null, null, file.getPath());
+
+                // Assert that the compilation failed (i.e., the result is non-zero)
+                assertTrue(result != 0, "Expected compilation failure for " + file.getName());
+            }
+        } else {
+            System.out.println("No files found in the directory.");
+        }
+
+    }
+
+    /**
+     * Helper method to get all .java files from a directory.
+     *
+     * @param directory the directory to search for .java files
+     * @return a list of .java files
+     * @throws IOException if an I/O error occurs
+     */
+    private List<File> getJavaFilesFromDirectory(File directory) throws IOException {
+        if (directory.isDirectory()) {
+            return Files.list(directory.toPath())
+                    .filter(path -> path.toString().endsWith(".java"))
+                    .map(java.nio.file.Path::toFile)
+                    .collect(Collectors.toList());
+        } else {
+            System.out.println("The provided path is not a directory: " + directory.getPath());
+            return List.of();
+        }
+    }
+}