Revert "Merge remote-tracking branch 'origin/Endabgabe' into code-generator"

This reverts commit 721e1caa79, reversing
changes made to 6d3e1f859e.

.gitignore

@@ -76,4 +76,11 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser
 
-/target
+/target
+src/main/resources/logs/RaupenLog.log
+src/main/resources/output/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
+.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" />

.lib/Kurzdokumentation.md

@@ -0,0 +1,58 @@
+# Kurzdokumentation
+
+## Aufgabenverteilung
+
+### Maximilian Stahl und Jannik Rombach:
+- **Scanner**
+- **Parser**
+- **AST**
+- **AstBuilder**
+    - **Modul: ast**
+        - Alle
+    - **Modul: parser**
+        - Alle
+    - **Modul: visitor**
+        - Alle
+    - **Testmodul: parser**
+        - AstBuildertest.java
+        - Helper.java
+    - **Testfiles: singleFeatureTests**
+        - Alle
+
+### Johannes Ehlert:
+- **Semantische Analyse**
+    - **Modul: semantic**
+    - **Modul: typecheck**
+    - **Testmodul: parser**
+        - AstBuildertest.java
+    - **Testfiles: typedAstFeatureTests**
+        - Großteil
+    - **Testfiles: typedAstExceptionsTests**
+        - Großteil
+
+### David Große:
+- **Bytecodegenerator**
+    - **Modul: bytecode**
+        - Alle
+
+### Lucas Janker:
+- **Tests**
+    - **Modul: main**
+        - Alle
+    - **Testmodul: main**
+        - Alle
+    - **Testmodul: parser**
+        - ScannerTest.java
+        - ParserTest.java
+    - **Testmodul: semantic**
+    - **Testfiles: combinedFeatureTests**
+        - Alle
+    - **Testfiles: failureTests**
+        - Alle
+    - **Testfiles: Alle**
+        - Refactoring
+    - **Ordnerstrukturen**
+        - Großteil
+    - **Build**
+    - **Makefile**
+    - **Dokumentation**

pom.xml

@@ -4,13 +4,14 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>org.example</groupId>
+    <groupId>de.dhbw-stuttgart</groupId>
     <artifactId>JavaCompiler</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.0</version>
 
     <properties>
-        <maven.compiler.source>21</maven.compiler.source>
-        <maven.compiler.target>21</maven.compiler.target>
+        <java.version>22</java.version>
+        <maven.compiler.source>${java.version}</maven.compiler.source>
+        <maven.compiler.target>${java.version}</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -19,7 +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>
@@ -52,8 +71,41 @@
                 <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>
+                <executions>
+                    <execution>
+                        <id>make-assembly</id> <!-- this is used for inheritance merges -->
+                        <phase>package</phase> <!-- bind to the packaging phase -->
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>main.Main</mainClass>
+                        </manifest>
+                    </archive>
+                    <descriptorRefs>
+                        <descriptorRef>jar-with-dependencies</descriptorRef>
+                    </descriptorRefs>
+                </configuration>
             </plugin>
         </plugins>
     </build>
-
+    <repositories>
+        <repository>
+            <id>maven_central</id>
+            <name>Maven Central</name>
+            <url>https://repo.maven.apache.org/maven2/</url>
+        </repository>
+    </repositories>
 </project>

readme.md

@@ -0,0 +1,68 @@
+# "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 Suttgart (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`;
+    - `switch` ... `case` ... ;
+- **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/                 -> MainTest, E2ETests, UtilityTests
+│   ├── 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)
+
+## 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
+
+## Download
+
+```bash

src/main/java/Main.java

@@ -1,132 +0,0 @@
-import ast.ASTNode;
-import org.antlr.v4.runtime.*;
-import ast.ProgramNode;
-//import bytecode.ByteCodeGenerator;
-import org.antlr.v4.runtime.CharStream;
-import org.antlr.v4.runtime.CharStreams;
-import org.antlr.v4.runtime.tree.ParseTree;
-import org.antlr.v4.runtime.CommonTokenStream;
-import parser.astBuilder.ASTBuilder;
-import parser.generated.SimpleJavaLexer;
-import parser.generated.SimpleJavaParser;
-//import semantic.SemanticAnalyzer;
-
-import java.io.IOException;
-import java.nio.file.Paths;
-
-public class Main {
-    public static void main(String[] args) throws Exception {
-        if(args.length > 0) {
-
-        } else {
-            try {
-                CharStream codeCharStream = CharStreams.fromPath(Paths.get("src/main/resources/CompilerInput.java"));
-                parseFile(codeCharStream);
-            } catch (IOException e) {
-                System.err.println("Error reading the file: " + e.getMessage());
-            }
-        }
-    }
-
-
-    static void parseFile(CharStream codeCharStream) {
-        /* ------------------------- Scanner -> tokens ------------------------- */
-        SimpleJavaLexer lexer = new SimpleJavaLexer(codeCharStream);
-        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
-
-        // Printing the tokens
-//        tokenStream.fill();
-//        List<Token> tokens = tokenStream.getTokens();
-//        System.out.println("-------------------- Scanner -> tokens --------------------");
-//        for (Token token : tokens) {
-//            String tokenType = SimpleJavaLexer.VOCABULARY.getSymbolicName(token.getType());
-//            String tokenText = token.getText();
-//            // System.out.println("Token Type: " + tokenType + ", Token Text: " +
-//            // tokenText);
-//            System.out.println(tokenType + " " + tokenText);
-//        }
-//        System.out.println();
-
-        /* ------------------------- Parser -> Parsetree ------------------------- */
-        SimpleJavaParser parser = new SimpleJavaParser(tokenStream);
-        ParseTree parseTree = parser.program(); // parse the input
-
-        // Printing the parse tree
-//        System.out.println("-------------------- Parser -> Parsetree --------------------");
-//        System.out.println(parseTree.toStringTree(parser));
-//        printTree(parseTree, parser, 0);
-//        System.out.println();
-
-        /* ------------------------- AST builder -> AST ------------------------- */
-        ASTBuilder astBuilder = new ASTBuilder();
-        ProgramNode abstractSyntaxTree = (ProgramNode) astBuilder.visit(parseTree);
-        System.out.println(abstractSyntaxTree);
-        // Printing the AST
-//        System.out.println("-------------------- AST builder -> AST --------------------");
-//        // System.out.println("AST: " + ast.toString());
-//        printAST(abstractSyntaxTree, 0);
-//        System.out.println();
-
-        /*
-         * ------------------------- Semantic Analyzer -> Tast -------------------------
-         */
-        //SemanticAnalyzer semanticAnalyzer = new SemanticAnalyzer();
-        //ProgramNode typedAst = (ProgramNode) semanticAnalyzer.generateTast(abstractSyntaxTree);
-
-        // Printing the Tast
-        System.out.println("Tast generated");
-
-        /*
-         * ------------------------- Bytecode Generator -> Bytecode
-         * -------------------------
-         */
-        //ByteCodeGenerator byteCodeGenerator = new ByteCodeGenerator();
-        //byteCodeGenerator.generateByteCode(abstractSyntaxTree);
-        //byteCodeGenerator.visit(typedAst);
-        System.out.println("Bytecode generated");
-
-    }
-
-    /**
-     * This method is used to print the parse tree in a structured format.
-     * It recursively traverses the tree and prints the rule names and text of the
-     * nodes.
-     *
-     * @param tree   The parse tree to be printed.
-     * @param parser The parser used to parse the input. It's used to get the rule
-     *               names.
-     * @param indent The current indentation level. It's used to format the output.
-     */
-    public static void printTree(ParseTree tree, Parser parser, int indent) {
-        // Create an indentation string based on the current indentation level
-        String indentString = " ".repeat(indent * 2);
-
-        // If the tree node is an instance of RuleContext (i.e., it's an internal node),
-        // print the rule name
-        if (tree instanceof RuleContext) {
-            int ruleIndex = ((RuleContext) tree).getRuleIndex();
-            String ruleName = parser.getRuleNames()[ruleIndex];
-            System.out.println(indentString + ruleName);
-        } else {
-            // If the tree node is not an instance of RuleContext (i.e., it's a leaf node),
-            // print the text of the node
-            System.out.println(indentString + tree.getText());
-        }
-
-        // Recursively print the children of the current node, increasing the
-        // indentation level
-        for (int i = 0; i < tree.getChildCount(); i++) {
-            printTree(tree.getChild(i), parser, indent + 1);
-        }
-    }
-
-    public static void printAST(ASTNode node, int indent) {
-        String indentString = " ".repeat(indent * 2);
-        System.out.println(indentString + node.getClass().toString());
-
-        // for (ASTNode child : node.) {
-        // printAST(child, indent + 1);
-        // }
-    }
-
-}

src/main/java/ast/ClassNode.java

@@ -4,6 +4,7 @@ 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 visitor.Visitable;
@@ -15,30 +16,20 @@ 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){
         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(){
         List<MethodNode> methods = new ArrayList<>();
         for (MemberNode member : members) {
@@ -54,4 +45,9 @@ 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

@@ -1,5 +1,6 @@
 package ast;
 
+import bytecode.visitor.ProgramVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 import visitor.Visitable;
@@ -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 visitor.Visitable;
 
-public class BinaryNode implements IExpressionNode {
+public class BinaryNode implements IExpressionNode, Visitable {
+
+    private 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

@@ -1,6 +1,7 @@
 package ast.expressions.binaryexpressions;
 
 import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
@@ -20,10 +21,12 @@ public class CalculationNode extends BinaryNode {
     }
 
     private void setOperator(String operator) {
-        if(operator.equals("+")) {
-            this.operator = EnumLineOperator.PLUS;
-        } else if(operator.equals("-")) {
-            this.operator = EnumLineOperator.MINUS;
+        if(operator != null) {
+            if(operator.equals("+")) {
+                this.operator = EnumLineOperator.PLUS;
+            } else if(operator.equals("-")) {
+                this.operator = EnumLineOperator.MINUS;
+            }
         }
     }
 
@@ -32,9 +35,10 @@ 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

@@ -1,6 +1,6 @@
 package ast.expressions.binaryexpressions;
 
-import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
@@ -35,8 +35,8 @@ 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/DotSubstractionNode.java

@@ -4,6 +4,7 @@ import ast.expressions.unaryexpressions.MemberAccessNode;
 import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
 import ast.type.type.*;
 import ast.type.ValueNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
@@ -37,8 +38,8 @@ public class DotSubstractionNode extends BinaryNode {
     }
 
     @Override
-    public ITypeNode getType() {
-        return null;
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
     }
 
 }

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

@@ -3,6 +3,7 @@ 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;
 
@@ -43,8 +44,8 @@ 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 +1,19 @@
 package ast.expressions.unaryexpressions;
 
 import ast.ASTNode;
+import bytecode.visitor.MethodVisitor;
+import ast.type.type.ITypeNode;
+import semantic.SemanticVisitor;
+import typechecker.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 +23,21 @@ 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

@@ -2,12 +2,26 @@ package ast.expressions.unaryexpressions;
 
 import ast.ASTNode;
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
 
-public class NotNode implements ASTNode {
+public class NotNode implements ASTNode, Visitable {
     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;
+    }
+
 }

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

@@ -4,6 +4,7 @@ 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;
 
@@ -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/literal/BooleanLiteralNode.java

@@ -0,0 +1,11 @@
+package ast.literal;
+
+public class BooleanLiteralNode {
+    private String value;
+
+    public BooleanLiteralNode(String value) {this.value = value;}
+
+    public String getValue() {
+        return value;
+    }
+}

src/main/java/ast/literal/CharLiteralNode.java

@@ -0,0 +1,11 @@
+package ast.literal;
+
+public class CharLiteralNode {
+    public String value;
+
+    public CharLiteralNode(String value) {this.value = value;}
+
+    public String getValue() {
+        return value;
+    }
+}

src/main/java/ast/literal/LiteralNode.java

@@ -0,0 +1,31 @@
+package ast.literal;
+
+import ast.expressions.IExpressionNode;
+import ast.type.type.ITypeNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class LiteralNode implements IExpressionNode {
+
+    public String value;
+    private ITypeNode type;
+
+    public LiteralNode(String value, ITypeNode type) {
+        this.value = value;
+        this.type = type;
+    }
+
+    public ITypeNode getType() {
+        return type;
+    }
+
+    public void setType(ITypeNode type) {
+        this.type = type;
+    }
+
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return null;
+    }
+}

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

@@ -3,29 +3,45 @@ 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 class ConstructorNode extends MethodNode implements Visitable {
     public AccessModifierNode accessType;
     public String identifier;
     public List<ParameterNode> parameters = new ArrayList<>();
-    public BlockNode body;
+    public BlockNode block;
 
-    public ConstructorNode(AccessModifierNode accessType, String identifier) {
-        this.accessType = accessType;
-        this.identifier = identifier;
-    }
-
-    public ConstructorNode(String accessType, String identifier, BlockNode body) {
+    public ConstructorNode(String accessType, String identifier, BlockNode block) {
         this.accessType = new AccessModifierNode(accessType);
         this.identifier = identifier;
-        this.body = body;
+        this.block = block;
     }
 
     public void addParameter(ParameterNode parameterNode) {
         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

@@ -2,6 +2,8 @@ package ast.members;
 
 import ast.type.AccessModifierNode;
 import ast.type.type.ITypeNode;
+import bytecode.visitor.ClassVisitor;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 import visitor.Visitable;
@@ -22,4 +24,9 @@ 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/MethodNode.java

@@ -21,7 +21,8 @@ public class MethodNode implements MemberNode, Visitable {
     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){
         this.accesModifier = new AccessModifierNode(accessModifier);
@@ -46,7 +47,7 @@ public class MethodNode implements MemberNode, Visitable {
         }
 
         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/statementexpressions/AssignNode.java

@@ -1,6 +1,7 @@
 package ast.statementexpressions;
 
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
@@ -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 +1,13 @@
 package ast.statementexpressions;
 
 import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.type.type.ITypeNode;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
 public class AssignableNode implements IStatementExpressionNode {
     public String identifier;
+    private ITypeNode typeNode;
 
     public MemberAccessNode memberAccess;
 
@@ -22,4 +24,12 @@ public class AssignableNode implements IStatementExpressionNode {
         return visitor.analyze(this);
     }
 
+    public ITypeNode getTypeNode() {
+        return typeNode;
+    }
+
+    public void setTypeNode(ITypeNode typeNode) {
+        this.typeNode = typeNode;
+    }
+
 }

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

@@ -1,6 +1,7 @@
 package ast.statementexpressions;
 
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
@@ -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

@@ -2,14 +2,17 @@ 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;
 
-public class DecrementNode implements IStatementExpressionNode {
+public class DecrementNode implements IStatementExpressionNode, Visitable {
     public CrementType crementType;
     public AssignableNode assignableExpression;
 
     public DecrementNode(CrementType crementType, AssignableNode assignableExpression) {
+        this.crementType = crementType;
         this.assignableExpression = assignableExpression;
     }
 
@@ -18,4 +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

@@ -2,14 +2,17 @@ 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;
 
-public class IncrementNode implements IStatementExpressionNode {
+public class IncrementNode implements IStatementExpressionNode, Visitable {
     public CrementType crementType;
     public AssignableNode assignableExpression;
 
     public IncrementNode(CrementType crementType, AssignableNode assignableExpression) {
+        this.crementType = crementType;
         this.assignableExpression = assignableExpression;
     }
 
@@ -18,4 +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 typechecker.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

@@ -2,6 +2,8 @@ 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;
 
@@ -10,9 +12,10 @@ 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> expressions = new ArrayList<>();
+    public List<IExpressionNode> parameters = new ArrayList<>();
 
     public MethodCallNode(TargetNode target, String identifier) {
         this.target = target;
@@ -23,8 +26,8 @@ public class MethodCallNode implements IStatementNode {
         chainedMethods.add(chainedMethode);
     }
 
-    public void addExpression(IExpressionNode expression) {
-        expressions.add(expression);
+    public void addExpression(IExpressionNode parameter) {
+        parameters.add(parameter);
     }
 
     @Override
@@ -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 +3,12 @@ package ast.statementexpressions.methodcallstatementnexpressions;
 import ast.ASTNode;
 import ast.expressions.unaryexpressions.MemberAccessNode;
 import ast.statementexpressions.NewDeclarationNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.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 +29,10 @@ 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

@@ -8,9 +8,8 @@ import visitor.Visitable;
 import java.util.ArrayList;
 import java.util.List;
 
-public class BlockNode implements ASTNode, Visitable {
+public class BlockNode implements IStatementNode, Visitable {
     public List<IStatementNode> statements = new ArrayList<>();
-    public Boolean hasReturnStatement = false;
 
     public BlockNode() {}
 

src/main/java/ast/statements/BlockStatementNode.java

@@ -0,0 +1,10 @@
+package ast.statements;
+
+
+import java.util.List;
+
+public class BlockStatementNode {
+    List<IStatementNode> statements;
+
+    public BlockStatementNode(List<IStatementNode> statements) {this.statements = statements;}
+}

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

@@ -1,13 +1,18 @@
 package ast.statements;
 
-import ast.ASTNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
 
-public class ElseNode implements ASTNode {
-    BlockNode block;
+public class ElseNode implements IStatementNode {
+    public BlockNode block;
 
     public ElseNode(BlockNode block) {
         this.block = block;
     }
 
 
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
 }

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

@@ -1,14 +1,15 @@
 package ast.statements;
 
-import ast.ASTNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
 
 import java.util.ArrayList;
 import java.util.List;
 
-public class IfElseNode implements ASTNode {
-    IfNode ifStatement;
-    List<IfNode> elseIfStatements = new ArrayList<>();
-    ElseNode elseStatement;
+public class IfElseNode implements IStatementNode {
+    public IfNode ifStatement;
+    public List<IfNode> elseIfStatements = new ArrayList<>();
+    public ElseNode elseStatement;
 
     public IfElseNode(IfNode ifStatement, ElseNode elseNode) {
         this.ifStatement = ifStatement;
@@ -19,4 +20,8 @@ public class IfElseNode implements ASTNode {
         elseIfStatements.add(elseIfStament);
     }
 
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
 }

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

@@ -1,14 +1,20 @@
 package ast.statements;
 
-import ast.ASTNode;
 import ast.expressions.IExpressionNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
 
-public class IfNode implements ASTNode {
-    IExpressionNode expression;
-    BlockNode block;
+public class IfNode implements IStatementNode {
+    public IExpressionNode expression;
+    public BlockNode block;
 
     public IfNode(IExpressionNode expression, BlockNode block) {
         this.expression = expression;
         this.block = block;
     }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
 }

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

@@ -2,6 +2,7 @@ package ast.statements;
 
 import ast.expressions.IExpressionNode;
 import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
@@ -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

@@ -1,6 +1,7 @@
 package ast.statements;
 
 import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 
@@ -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/StatementNode.java

@@ -1,2 +0,0 @@
-package ast.statements;public class StatementNode {
-}

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

@@ -1,14 +1,25 @@
 package ast.statements;
 
-import ast.ASTNode;
 import ast.expressions.IExpressionNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
 
-public class WhileNode extends StatementNode implements ASTNode {
-    IExpressionNode expression;
-    BlockNode block;
+public class WhileNode implements IStatementNode {
+    public IExpressionNode expression;
+    public BlockNode block;
 
     public WhileNode(IExpressionNode expression, BlockNode block) {
         this.expression = expression;
         this.block = block;
     }
+
+    public void test() {
+        return;
+
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
 }

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 typechecker.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/bytecode/ByteCodeGenerator.java

@@ -2,15 +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 {
 
-  @Override
-  public void visit(ProgramNode programNode) {
-    for (ClassNode classDeclarationNode : programNode.classes) {
-      ClassCodeGen classCodeGen = new ClassCodeGen();
-//      classDeclarationNode.accept(classCodeGen);
+    private JarOutputStream jarOutputStream;
+    private ByteArrayOutputStream byteArrayOutputStream;
+    private String outputDirectory;
+    private boolean generateJar;
+    private boolean generateClassFiles;
+
+    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

@@ -6,26 +6,39 @@ import ast.members.MemberNode;
 import ast.members.MethodNode;
 import ast.type.type.BaseType;
 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 ClassWriter classWriter;
+    private JarOutputStream jarOutputStream;
+    private String outputDirectory;
+    private boolean generateJar;
+    private boolean generateClassFiles;
 
-    public ClassCodeGen() {
-        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) {
@@ -36,28 +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 directoryPath = "src/main/java/classFileOutput";
-        File directory = new File(directoryPath);
+    private void printIntoClassFile(byte[] byteCode, String name, String outputDirectory) {
+        File directory = new File(outputDirectory);
         if (!directory.exists()) {
             directory.mkdirs();
         }
 
-        String filePath = directoryPath + "/" + name + ".class";
+        String filePath = outputDirectory + "/" + name + ".class";
         try {
             FileOutputStream fileOutputStream = new FileOutputStream(filePath);
             fileOutputStream.write(byteCode);
@@ -66,4 +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 +1,29 @@
 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.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.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;
@@ -17,78 +37,652 @@ public class MethodCodeGen implements bytecode.visitor.MethodVisitor {
     private Mapper mapper;
     private MethodVisitor methodVisitor;
 
-    private List<String> localVaribales;
+    private 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.accessType),
+                        "<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) {
+        methodVisitor = classWriter.visitMethod(mapper.mapAccessTypeToOpcode(mainMethodNode.accesModifier),
+                mainMethodNode.getIdentifier(),
+                "([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.dotExpression != null) {
+            calculationNode.dotExpression.accept(this);
+        }
+        if (calculationNode.calculationExpression != null) {
+            calculationNode.calculationExpression.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.dotSubstractionExpression != null) {
+            dotNode.dotSubstractionExpression.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(DotSubstractionNode dotSubstractionNode) {
+        if (dotSubstractionNode.value != null) {
+            dotSubstractionNode.value.accept(this);
+        } else if (dotSubstractionNode.identifier != null) {
+            methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(dotSubstractionNode.identifier));
+        } else if (dotSubstractionNode.memberAccess != null) {
+            dotSubstractionNode.memberAccess.accept(this);
+        } else if (dotSubstractionNode.methodCall != null) {
+            dotSubstractionNode.methodCall.accept(this);
+        } else if (dotSubstractionNode.calculationExpression != null) {
+            dotSubstractionNode.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.identifier != null) {
+            methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(unaryNode.identifier));
+        } else if (unaryNode.memberAccess != null) {
+            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);
+        }
+    }
+
+
+    // Statements
+
+    @Override
+    public void visit(IfElseNode ifElseNode) {
+        Label elseLabel = 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
+
+        Label endLabel = new Label();
+        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);
+        }
+
+        methodVisitor.visitLabel(endLabel);
+    }
+
+    @Override
+    public void visit(LocalVariableDeclarationNode localVariableDeclarationNode) {
+        if (localVariableDeclarationNode.expression != null) {
+            // Process expression
+            localVariableDeclarationNode.expression.accept(this);
+            // 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
+            if (assignNode.expression instanceof IncrementNode) {
+                if (((IncrementNode) assignNode.expression).crementType.equals(CrementType.PREFIX)) { // ++i
+                    fieldOrObjectVarPrefixCrementAssign(assignNode);
+                } else { // i++
+                    fieldOrObjectVarSuffixCrementAssign(assignNode);
+                }
+            } else if (assignNode.expression instanceof DecrementNode) {
+                if (((DecrementNode) assignNode.expression).crementType.equals(CrementType.PREFIX)) {
+                    fieldOrObjectVarPrefixCrementAssign(assignNode);
+                } else {
+                    fieldOrObjectVarSuffixCrementAssign(assignNode);
+                }
+            } else {
+                assignFieldOrObjectVar(assignNode);
+            }
+        } else { // local var
+            if (assignNode.expression instanceof IncrementNode || assignNode.expression instanceof DecrementNode) {
+                localVarCrementAssign(assignNode);
+            } else {
+                assignNode.expression.accept(this);
+                assignLocalVar(assignNode);
+            }
+        }
+    }
+
+    private void localVarCrementAssign(AssignNode assignNode) {
+        if (assignNode.expression instanceof IncrementNode) {
+            IncrementNode incrementNode = (IncrementNode) assignNode.expression;
+            if (incrementNode.crementType.equals(CrementType.PREFIX)) { // ++i
+                incrementNode.accept(this);
+                assignLocalVar(assignNode);
+            } else { // i++
+                loadBeforeCrement(assignNode);
+                assignLocalVar(assignNode);
+                incrementNode.accept(this);
+            }
+        } else if (assignNode.expression instanceof DecrementNode) {
+            DecrementNode decrementNode = (DecrementNode) assignNode.expression;
+            if (decrementNode.crementType.equals(CrementType.PREFIX)) {
+                decrementNode.accept(this);
+                assignLocalVar(assignNode);
+            } else {
+                loadBeforeCrement(assignNode);
+                assignLocalVar(assignNode);
+                decrementNode.accept(this);
+            }
+        }
+    }
+
+    private void fieldOrObjectVarPrefixCrementAssign(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);
+            methodVisitor.visitVarInsn(ALOAD, localVariables.indexOf(assignNode.assignable.identifier));
+        }
+
+        assignNode.expression.accept(this);
+        methodVisitor.visitInsn(DUP_X1);
+
+        if (assignNode.expression 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 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 fieldOrObjectVarSuffixCrementAssign(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);
+            methodVisitor.visitVarInsn(ALOAD, localVariables.indexOf(assignNode.assignable.identifier));
+        }
+
+        loadBeforeCrement(assignNode);
+        
+        if (assignNode.expression 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 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() + ";");
+        }
+
+        assignNode.expression.accept(this);
+    }
+
+    private void assignLocalVar(AssignNode assignNode) {
+        methodVisitor.visitInsn(DUP);
+        if (!localVariables.contains(assignNode.assignable.identifier)) {
+            localVariables.add(assignNode.assignable.identifier);
+        }
+        if (assignNode.expression instanceof BaseType) {
+            methodVisitor.visitVarInsn(ISTORE, localVariables.indexOf(assignNode.assignable.identifier));
+        } else if (assignNode.expression 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);
+            methodVisitor.visitVarInsn(ALOAD, localVariables.indexOf(assignNode.assignable.identifier));
+        }
+
+        assignNode.expression.accept(this);
+        methodVisitor.visitInsn(DUP_X1);
+
+        if (assignNode.expression 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 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 loadBeforeCrement(AssignNode assignNode) {
+        if(assignNode.expression instanceof IncrementNode) {
+            IncrementNode incrementNode = (IncrementNode) assignNode.expression;
+            if(incrementNode.assignableExpression.memberAccess != null) {
+                incrementNode.assignableExpression.memberAccess.accept(this);
+            } else {
+                if(assignNode.assignable.getTypeNode() instanceof BaseType) {
+                    methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(assignNode.assignable.identifier));
+                } else if(assignNode.assignable.getTypeNode() instanceof ReferenceType) {
+                    methodVisitor.visitVarInsn(ALOAD, localVariables.indexOf(assignNode.assignable.identifier));
+                }
+            }
+        } else if(assignNode.expression instanceof DecrementNode) {
+            DecrementNode decrementNode = (DecrementNode) assignNode.expression;
+            if(decrementNode.assignableExpression.memberAccess != null) {
+                decrementNode.assignableExpression.memberAccess.accept(this);
+            } else {
+                if(assignNode.assignable.getTypeNode() instanceof BaseType) {
+                    methodVisitor.visitVarInsn(ILOAD, localVariables.indexOf(assignNode.assignable.identifier));
+                } else if(assignNode.assignable.getTypeNode() instanceof ReferenceType) {
+                    methodVisitor.visitVarInsn(ALOAD, localVariables.indexOf(assignNode.assignable.identifier));
+                }
+            }
+        }
+    }
+
+    @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(DUP);
+            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);
+            }
+            methodVisitor.visitInsn(DUP);
+            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);
+            // 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<>();
+        for (IExpressionNode expressionNode : methodCallNode.parameters) {
+            expressionNode.accept(this);
+            parameterNodes.add(new ParameterNode(expressionNode.getType(), ""));
+        }
+        methodVisitor.visitMethodInsn(INVOKEVIRTUAL, methodCallNode.target.memberAccess.identifiers.get(0), methodCallNode.identifier, mapper.generateMethodDescriptor(methodCallNode.type, parameterNodes), false);
+    }
 }

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

@@ -4,6 +4,6 @@ import ast.ClassNode;
 import ast.members.FieldNode;
 
 public interface ClassVisitor {
-  void visit(ClassNode classNode);
-  void visit(FieldNode fieldNode);
+    void visit(ClassNode classNode);
+    void visit(FieldNode fieldNode);
 }

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

@@ -1,9 +1,58 @@
 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.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.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(DotSubstractionNode dotSubstractionNode);
+    void visit(NonCalculationNode nonCalculationNode);
+
+    // Unary expressions
+    void visit(MemberAccessNode memberAccessNode);
+    void visit(NotNode notExpressionNode);
+    void visit(UnaryNode unaryExpressionNode);
+
+    // statements
+    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/main/Main.java

@@ -0,0 +1,119 @@
+package main;
+
+import ast.ASTNode;
+import ast.ProgramNode;
+import parser.astBuilder.ASTBuilder;
+import parser.generated.SimpleJavaLexer;
+import parser.generated.SimpleJavaParser;
+import semantic.SemanticAnalyzer;
+import bytecode.ByteCodeGenerator;
+
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.tree.ParseTree;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+import java.util.Optional;
+
+
+/**
+ * Start Raupenpiler using make:
+ * <p> <code> cd .\src\test\ </code>
+ * <p> <code> make clean compile-raupenpiler </code>
+ * <p> Start Raupenpiler 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 -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
+            // args[1] is the output directory path
+            String inputFilePath = args[0];
+            String outputDirectoryPath = args[1];
+            System.out.println("Compiling file: " + inputFilePath);
+            try {
+                CharStream inputCharStream = CharStreams.fromPath(Paths.get(inputFilePath));
+                compileFile(inputCharStream, outputDirectoryPath);
+            } catch (IOException e) {
+                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);
+            } catch (IOException e) {
+                System.err.println("Error reading the file: " + e.getMessage());
+            }
+        }
+        */
+    }
+
+    /**
+     * This method is used to compile a file from a given CharStream and output the bytecode to a specified directory.
+     * It goes through the following steps:
+     * <p>1. Scanner: It uses the SimpleJavaLexer to tokenize the input CharStream.
+     * <p>2. Parser: It uses the SimpleJavaParser to parse the tokens and generate a ParseTree.
+     * <p>3. AST Builder: It uses the ASTBuilder to visit the ParseTree and generate an Abstract Syntax Tree (AST).
+     * <p>4. Semantic Analyzer: It uses the SemanticAnalyzer to generate a typed AST.
+     * <p>5. Bytecode Generator: It uses the ByteCodeGenerator to generate bytecode from the typed AST and output it to the specified directory.
+     *
+     * @param inputCharStream     The CharStream representing the input file to be compiled.
+     * @param outputDirectoryPath The path of the directory where the output bytecode should be written.
+     */
+    static void compileFile(CharStream inputCharStream, String outputDirectoryPath) {
+        // Initialize the logger
+        new RaupenLogger();
+
+        /* ------------------------- Scanner -> tokens ------------------------- */
+        // Use the SimpleJavaLexer to tokenize the input CharStream
+        SimpleJavaLexer lexer = new SimpleJavaLexer(inputCharStream);
+        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+        tokenStream.fill();
+        // Log the tokens
+        RaupenLogger.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);
+
+        /*------------------------- 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);
+
+        /*------------------------- Semantic Analyzer -> typed AST -------------------------*/
+        // Use the SemanticAnalyzer to generate a typed AST
+        ASTNode typedAst = SemanticAnalyzer.generateTast(abstractSyntaxTree);
+        // Log the typed AST
+        RaupenLogger.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
+            RaupenLogger.logBytecodeGenerator();
+        } else {
+            for(Exception exception : SemanticAnalyzer.errors){
+                exception.printStackTrace();
+            }
+        }
+
+
+    }
+}

src/main/java/main/RaupenLogger.java

@@ -0,0 +1,180 @@
+package main;
+
+import ast.ASTNode;
+import org.antlr.v4.runtime.CommonTokenStream;
+import org.antlr.v4.runtime.Parser;
+import org.antlr.v4.runtime.RuleContext;
+import org.antlr.v4.runtime.Token;
+import org.antlr.v4.runtime.tree.ParseTree;
+import parser.generated.SimpleJavaLexer;
+import parser.generated.SimpleJavaParser;
+
+import java.io.IOException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+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>
+ */
+public class RaupenLogger {
+
+    static Logger logger = Logger.getLogger("RaupenLogs");
+
+    public RaupenLogger() {
+        // ------------------------- Logging -------------------------
+        logger.setLevel(Level.ALL);
+        logger.getParent().getHandlers()[0].setLevel(Level.ALL);
+        logger.setUseParentHandlers(false);
+
+        // Custom formatter class
+        class CustomFormatter extends Formatter {
+            private final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss dd-MM-yyyy");
+
+            @Override
+            public String format(LogRecord record) {
+                return formatMessage(record) + System.lineSeparator();
+            }
+
+            @Override
+            public String getHead(Handler h) {
+                Date now = new Date();
+                String dateTime = dateFormat.format(now);
+                return "Log Start Time: " + dateTime + "\n"
+                        + "Logger Name: " + h.getFormatter().getClass().getName() + "\n\n";
+            }
+        }
+
+        try {
+            // Configure console handler
+            Handler consoleHandler = new ConsoleHandler();
+            // Toggle console logging on/off
+            consoleHandler.setLevel(Level.OFF);
+            consoleHandler.setFormatter(new CustomFormatter());
+            logger.addHandler(consoleHandler);
+
+            // Configure file handler
+            Handler fileHandler = new FileHandler("src/main/resources/logs/RaupenLog.log");
+            // Toggle file logging on/off
+            fileHandler.setLevel(Level.ALL);
+            fileHandler.setFormatter(new CustomFormatter());
+            logger.addHandler(fileHandler);
+
+        } catch (SecurityException | IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void logScanner(CommonTokenStream tokenStream) {
+        // Printing the tokens
+        logger.info("-------------------- Scanner -> Tokens --------------------");
+        List<Token> tokens = tokenStream.getTokens();
+        for (Token token : tokens) {
+            String tokenType =
+                    SimpleJavaLexer.VOCABULARY.getSymbolicName(token.getType());
+            String tokenText = token.getText();
+            // logger.info("Token Type: " + tokenType + ", Token Text: " + tokenText);
+            logger.info(tokenType + " " + tokenText);
+        }
+        logger.info("\n");
+    }
+
+    public static void logParser(ParseTree parseTree, SimpleJavaParser parser) {
+        // Printing the parse tree
+        logger.info("-------------------- Parser -> Parsetree  --------------------");
+        logger.info(parseTree.toStringTree(parser)); //one line representation
+        logTree(parseTree, parser, 0);
+        logger.info("\n");
+    }
+
+    public static void logAST(ASTNode abstractSyntaxTree) {
+        // Printing the AST
+        logger.info("-------------------- AST builder -> AST  --------------------");
+        // logger.info("AST: " + ast.toString());
+        logAST(abstractSyntaxTree, 0);
+        logger.info("\n");
+    }
+
+    public static void logSemanticAnalyzer(ASTNode typedAst) {
+        // Printing the typed AST
+        logger.info("-------------------- Semantic Analyzer -> typed AST  --------------------");
+        logAST(typedAst, 0);
+        logger.info("\n");
+    }
+
+    public static void logBytecodeGenerator() {
+        // Printing the bytecode
+        logger.info("-------------------- Bytecode Generator -> Bytecode  --------------------");
+        logger.info("Bytecode generated");
+        logger.info("\n");
+    }
+
+
+
+
+
+
+
+
+
+    /* ------------------------- Printing methods ------------------------- */
+
+    /**
+     * This method is used to print the parse tree in a structured format.
+     * It recursively traverses the tree and prints the rule names and text of the
+     * nodes.
+     *
+     * @param tree   The parse tree to be printed.
+     * @param parser The parser used to parse the input. It's used to get the rule
+     *               names.
+     * @param indent The current indentation level. It's used to format the output.
+     */
+    public static void logTree(ParseTree tree, Parser parser, int indent) {
+        // Create an indentation string based on the current indentation level
+        String indentString = " ".repeat(indent * 2);
+
+        // If the tree node is an instance of RuleContext (i.e., it's an internal node),
+        // print the rule name
+        if (tree instanceof RuleContext) {
+            int ruleIndex = ((RuleContext) tree).getRuleIndex();
+            String ruleName = parser.getRuleNames()[ruleIndex];
+            logger.info(indentString + ruleName);
+        } else {
+            // If the tree node is not an instance of RuleContext (i.e., it's a leaf node),
+            // print the text of the node
+            logger.info(indentString + tree.getText());
+        }
+
+        // Recursively print the children of the current node, increasing the
+        // indentation level
+        for (int i = 0; i < tree.getChildCount(); i++) {
+            logTree(tree.getChild(i), parser, indent + 1);
+        }
+    }
+
+    // TODO: Fix this method
+    public static void logAST(ASTNode abstractSyntaxTree, int indent) {
+        if (abstractSyntaxTree == null) {
+            logger.severe("AST is null !!!");
+            return;
+        }
+        String indentString = " ".repeat(indent * 2);
+        logger.info(indentString + abstractSyntaxTree.getClass());
+        //for (ASTNode child : abstractSyntaxTree.getChildren()) {
+        //    logAST(child, indent + 1);
+       // }
+
+    }
+}

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

@@ -3,18 +3,15 @@ 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;
-import ast.members.ConstructorNode;
-import ast.members.MemberNode;
+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;
@@ -23,6 +20,7 @@ import ast.statementexpressions.methodcallstatementnexpressions.ChainedMethodNod
 import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
 import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
 import ast.statements.*;
+import ast.type.AccessModifierNode;
 import ast.type.type.*;
 import ast.type.EnumValueNode;
 import ast.type.ValueNode;
@@ -44,26 +42,113 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @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;
     }
 
     @Override
     public ASTNode visitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx) {
-        ConstructorNode constructorNode = new ConstructorNode(ctx.AccessModifier().getText(), ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
-        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
-            constructorNode.addParameter((ParameterNode) visit(parameter));
+        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;
     }
 
+    @Override
+    public ASTNode visitMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx) {
+        if(ctx.MainMethodDeclaration() != null) {
+            MainMethodNode mainMethod = new MainMethodNode((BlockNode) visit(ctx.blockStatement()));
+            mainMethod.block.addStatement(new ReturnNode(null));
+            return mainMethod;
+        } else {
+            if(ctx.type() != null) {
+                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;
+                }
+            } else {
+                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;
+                }
+            }
+        }
+    }
+
+    @Override
+    public ASTNode visitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx) {
+        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());
+        }
+    }
+
     @Override
     public ASTNode visitParameter(SimpleJavaParser.ParameterContext ctx) {
-        return new ParameterNode(new TypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        return new ParameterNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
     }
 
     @Override
@@ -76,10 +161,14 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
             return visitBlockStatement(ctx.blockStatement());
         } else if(ctx.whileStatement() != null) {
             return visitWhileStatement(ctx.whileStatement());
+        } else if(ctx.doWhileStatement() != null) {
+            return visitDoWhileStatement(ctx.doWhileStatement());
         } else if(ctx.forStatement() != null) {
             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());
         }
@@ -93,7 +182,12 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @Override
     public ASTNode visitLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx) {
-        return new LocalVariableDeclarationNode(new TypeNode(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);
+        }
+
     }
 
     @Override
@@ -125,37 +219,60 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @Override
     public ASTNode visitForStatement(SimpleJavaParser.ForStatementContext ctx) {
+        List<IStatementNode> statements = new ArrayList<>();
 
-        List<StatementNode> statements = new ArrayList<>();
-
-        //init
-        if(ctx.statementExpression(0) != null){
-            statements.add((StatementNode) visit(ctx.statementExpression(0)));
-        } else if (ctx.localVariableDeclaration() != null) {
-            statements.add((StatementNode) visit(ctx.localVariableDeclaration()));
+        // Initialisierung
+        int i = 0;
+        if (ctx.localVariableDeclaration() != null) {
+            statements.add((IStatementNode) visit(ctx.localVariableDeclaration()));
+        } else if (ctx.statementExpression(i) != null) {
+            statements.add((IStatementNode) visit(ctx.statementExpression(i)));
+            i++;
         }
 
-        //condition
+        // Bedingung
         IExpressionNode condition = (IExpressionNode) visit(ctx.expression());
 
-        //ink
-        IStatementNode increment = null;
-        if(ctx.statementExpression(1) != null){
-            increment = (IStatementNode) visit(ctx.statementExpression(1));
+        // Inkrement
+        IStatementExpressionNode crement = null;
+        boolean isPrefix = false;
+        if (ctx.statementExpression(i) != null) {
+            crement = (IStatementExpressionNode) visit(ctx.statementExpression(i));
+
+            if (crement instanceof IncrementNode) {
+                isPrefix = ((IncrementNode) crement).crementType == CrementType.PREFIX;
+            } else if (crement instanceof DecrementNode) {
+                isPrefix = ((DecrementNode) crement).crementType == CrementType.PREFIX;
+            }
         }
 
         BlockNode forBlock = (BlockNode) visit(ctx.blockStatement());
 
-        if(increment != null){
-            forBlock.addStatement((increment));
+        // While-Schleife
+        BlockNode whileBody = new BlockNode();
+
+        // Prä-Inkrement: Das Inkrement kommt vor dem Block
+        if (crement != null && isPrefix) {
+            whileBody.addStatement((IStatementNode) crement);
         }
 
-        WhileNode While = new WhileNode(condition, forBlock);
+        // Block Statements der For-Schleife in den While-Block kopieren
+        for (IStatementNode statement : forBlock.statements) {
+            whileBody.addStatement(statement);
+        }
 
-        statements.add(While);
+        // Post-Inkrement: Das Inkrement kommt nach dem Block
+        if (crement != null && !isPrefix) {
+            whileBody.addStatement((IStatementNode) crement);
+        }
+
+        // Bedingung der While-Schleife
+        WhileNode whileNode = new WhileNode(condition, whileBody);
+
+        statements.add(whileNode);
 
         BlockNode resultBlock = new BlockNode();
-        for(StatementNode statement : statements) {
+        for (IStatementNode statement : statements) {
             resultBlock.addStatement((IStatementNode) statement);
         }
 
@@ -164,8 +281,13 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @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)));
@@ -203,6 +325,49 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
         return null;
     }
 
+    @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;
+    }
+
     @Override
     public ASTNode visitAssign(SimpleJavaParser.AssignContext ctx) {
         return new AssignNode((AssignableNode) visit(ctx.assignableExpression()), (IExpressionNode) visit(ctx.expression()));
@@ -219,7 +384,12 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @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));
         }
@@ -434,6 +604,4 @@ 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"+
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+		"\u00f7\u00f8\u0005=\u0000\u0000\u00f8\u001a\u0001\u0000\u0000\u0000\u00f9"+
+		"\u00fa\u0005+\u0000\u0000\u00fa\u001c\u0001\u0000\u0000\u0000\u00fb\u00fc"+
+		"\u0005-\u0000\u0000\u00fc\u001e\u0001\u0000\u0000\u0000\u00fd\u00fe\u0005"+
+		"*\u0000\u0000\u00fe \u0001\u0000\u0000\u0000\u00ff\u0100\u0005%\u0000"+
+		"\u0000\u0100\"\u0001\u0000\u0000\u0000\u0101\u0102\u0005/\u0000\u0000"+
+		"\u0102$\u0001\u0000\u0000\u0000\u0103\u0104\u0005>\u0000\u0000\u0104&"+
+		"\u0001\u0000\u0000\u0000\u0105\u0106\u0005<\u0000\u0000\u0106(\u0001\u0000"+
+		"\u0000\u0000\u0107\u0108\u0005>\u0000\u0000\u0108\u0109\u0005=\u0000\u0000"+
+		"\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

@@ -7,7 +7,7 @@ classDeclaration: AccessModifier? 'class' Identifier OpenCurlyBracket memberDecl
 memberDeclaration: constructorDeclaration | fieldDeclaration | methodDeclaration;
 
 constructorDeclaration: AccessModifier? Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
-fieldDeclaration: AccessModifier? type Identifier Semicolon;
+fieldDeclaration: AccessModifier? type Identifier (Assign expression)? Semicolon;
 methodDeclaration: MainMethodDeclaration blockStatement | AccessModifier? (type | Void) Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
 
 parameterList: parameter (Comma parameter)*;
@@ -22,6 +22,7 @@ statement: returnStatement Semicolon
          | doWhileStatement
          | forStatement
          | ifElseStatement
+         | switchStatement
          | statementExpression Semicolon;
 
 blockStatement: OpenCurlyBracket statement* ClosedCurlyBracket;
@@ -38,6 +39,10 @@ ifStatement: If OpenRoundBracket expression ClosedRoundBracket blockStatement;
 elseIfStatement: Else If OpenRoundBracket expression ClosedRoundBracket blockStatement;
 elseStatement: Else blockStatement;
 
+switchStatement: Switch OpenRoundBracket expression ClosedRoundBracket OpenCurlyBracket caseStatement+ defaultStatement? ClosedCurlyBracket;
+caseStatement: Case value Colon statement*;
+defaultStatement: Default Colon statement*;
+
 statementExpression: assign | newDeclaration | methodCall | crementExpression;
 assign: assignableExpression Assign expression;
 newDeclaration: New Identifier OpenRoundBracket argumentList ClosedRoundBracket;
@@ -153,6 +158,10 @@ Else: 'else';
 For: 'for';
 Return: 'return';
 New: 'new';
+Switch: 'switch';
+Case: 'case';
+Default: 'default';
+Colon: ':';
 
 // Werte
 CharValue: '\'' ~[\r\n]* '\'';

src/main/java/semantic/Scope.java

@@ -1,7 +1,7 @@
 package semantic;
 
 import ast.type.type.*;
-import semantic.exeptions.AlreadyDeclearedException;
+import semantic.exceptions.AlreadyDeclaredException;
 
 import java.util.HashMap;
 import java.util.Stack;
@@ -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

@@ -9,6 +9,7 @@ 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;
@@ -20,11 +21,18 @@ 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.AccessModifierNode;
+import ast.type.EnumAccessModifierNode;
+import ast.type.ValueNode;
 import ast.type.type.*;
+import com.sun.jdi.IntegerType;
+import semantic.context.ClassContext;
 import semantic.context.Context;
-import semantic.exeptions.*;
+import semantic.exceptions.*;
 import typechecker.TypeCheckResult;
 
 public class SemanticAnalyzer implements SemanticVisitor {
@@ -116,7 +124,7 @@ public class SemanticAnalyzer implements SemanticVisitor {
                 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;
@@ -129,31 +137,25 @@ 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);
@@ -163,54 +165,83 @@ public class SemanticAnalyzer implements SemanticVisitor {
 
     @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);
         }
         return new TypeCheckResult(true, null);
+
+
     }
 
     @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"));
+                        }
+                    }
                 }
             }
         }
@@ -219,18 +250,34 @@ 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);
+                return new TypeCheckResult(true, type);
+            }
+        }
+
+        return new TypeCheckResult(true, null);
 
     }
 
     @Override
     public TypeCheckResult analyze(ElseNode toCheck) {
-        return null;
-    }
-
-    @Override
-    public TypeCheckResult analyze(ForNode toCheck) {
-        return null;
+        return toCheck.block.accept(this);
     }
 
     @Override
@@ -242,13 +289,6 @@ 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 +298,104 @@ 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);
+        if(toCheck.elseStatement != null){
+            var resultElse = toCheck.elseStatement.accept(this);
+            return new TypeCheckResult(resultIf.isValid() && resultElse.isValid(), 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) {
+                            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 {
+
+            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 +406,9 @@ 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 +430,17 @@ public class SemanticAnalyzer implements SemanticVisitor {
 
     @Override
     public TypeCheckResult analyze(NewDeclarationNode toCheck) {
-        return null;
+
+        if (context.containsClass(toCheck.identifier)) {
+            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 +451,307 @@ 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.dotSubstractionExpression != null) {
+            var result = toCheck.dotSubstractionExpression.accept(this);
+            toCheck.setType(result.getType());
+            return result;
+        }
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(DotSubstractionNode 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)) {
+                    return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+                } 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)) {
+                    return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+                } 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)) {
+                    return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+                } 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.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);
+                    }
+                }
+            }
+
+        }
+
+        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 -> {
+                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;
@@ -11,7 +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 ast.type.ValueNode;
 import typechecker.TypeCheckResult;
 
 public interface SemanticVisitor {
@@ -38,8 +41,6 @@ public interface SemanticVisitor {
 
     TypeCheckResult analyze(ElseNode toCheck);
 
-    TypeCheckResult analyze(ForNode toCheck);
-
     TypeCheckResult analyze(AssignNode toCheck);
 
     TypeCheckResult analyze(DecrementNode toCheck);
@@ -66,4 +67,10 @@ public interface SemanticVisitor {
 
     TypeCheckResult analyze(UnaryNode toCheck);
 
+    TypeCheckResult analyze(MemberAccessNode toCheck);
+
+    TypeCheckResult analyze(TargetNode toCheck);
+
+    TypeCheckResult analyze(ValueNode toCheck);
+
 }

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 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

@@ -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

@@ -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/resources/CompilerInput.java

@@ -1,17 +0,0 @@
-public class Example {
-
-    public int a;
-
-    public static int testMethod(char x){
-
-    }
-
-}
-
-public class Test {
-
-    public static int testMethod(char x, int a){
-        x = x + a;
-        return x;
-    }
-}

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

@@ -0,0 +1,13 @@
+public class Compiler {
+    public int add(int i, int j) {
+        return i+j;
+    }
+}
+
+public class Node {
+    public void main() {
+        Compiler compiler = new Compiler();
+        int i = compiler.add(5, 8);
+    }
+}
+

src/main/test/java/EmptyClassExample.java

@@ -1,4 +0,0 @@
-public class EmptyClassExample {
-    private class Inner {
-    }
-} // -o für outout

src/main/test/java/FailureTest.java

@@ -1,72 +0,0 @@
-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/failureTests/TestClass1.java",
-            "src/main/test/resources/failureTests/TestClass2.java",
-            "src/main/test/resources/failureTests/TestClass3.java",
-            "src/main/test/resources/failureTests/TestClass4.java",
-            "src/main/test/resources/failureTests/TestClass5.java",
-            "src/main/test/resources/failureTests/TestClass6.java",
-            "src/main/test/resources/failureTests/TestClass7.java",
-            "src/main/test/resources/failureTests/TestClass8.java",
-            "src/main/test/resources/failureTests/TestClass9.java",
-            "src/main/test/resources/failureTests/TestClass10.java",
-            "src/main/test/resources/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/EmptyClassExample.java"));
-            Main.parsefile(codeCharStream);
-        } catch (IOException e) {
-            System.err.println("Error reading the file: " + e.getMessage());
-        }
-    }
-}
-

src/main/test/java/MainTest.java

@@ -1,32 +0,0 @@
-import org.junit.jupiter.api.Test;
-import org.antlr.v4.runtime.CharStream;
-import org.antlr.v4.runtime.CharStreams;
-import org.antlr.v4.runtime.CommonTokenStream;
-import org.antlr.v4.runtime.tree.ParseTree;
-import parser.ASTBuilder;
-import oldAst.ClassNode;
-import oldAst.ProgramNode;
-import bytecode.ByteCodeGenerator;
-
-import java.io.IOException;
-import java.nio.file.Paths;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-/**
- * run: mvn test
- */
-public class MainTest {
-    @Test
-    void testEmptyClass() {
-        CharStream codeCharStream = null;
-        try {
-            codeCharStream = CharStreams.fromPath(Paths.get("src/main/test/resources/EmptyClassExample.java"));
-            Main.parsefile(codeCharStream);
-        } catch (IOException e) {
-            System.err.println("Error reading the file: " + e.getMessage());
-        }
-    }
-}
-
-

src/main/test/java/Tester.java

@@ -1,11 +0,0 @@
-public class Tester {
-    public static void main(String[] args) {
-       new EmptyClassExample();
-       // cp mitgeben
-    }
-}
-// java -jar pfadtocompiler.jar EmptyClass.java
-//mit bash scipt ode rmakefile test automatisieren
-//mvn package
-// javac tester // tester compilen
-// java tester // tester ausführen

src/main/test/resources/CombinedExample.java

@@ -1,25 +0,0 @@
-package resources;
-
-public class CombinedExample {
-    int number;
-    boolean flag;
-    char letter;
-
-    public CombinedExample(int number, boolean flag, char letter) {
-        this.number = number;
-        this.flag = flag;
-        this.letter = letter;
-    }
-
-    public void displayValues() {
-        System.out.println("Number: " + number);
-        System.out.println("Flag: " + flag);
-        System.out.println("Letter: " + letter);
-    }
-
-    public static void main(String[] args) {
-        CombinedExample obj = new CombinedExample(10, true, 'X');
-        obj.displayValues();
-    }
-}
-

src/main/test/resources/MoreFeaturesClassExample.java

@@ -1,8 +0,0 @@
-package resources;
-
-public class MoreFeaturesClassExample {
-    int hallo;
-    private class Inner {
-        int hallo2;
-    }
-}

src/test/Makefile

@@ -0,0 +1,41 @@
+# Makefile
+### 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
+
+compile-javac:
+	javac -d .\resources\output\javac .\resources\input\CompilerInput.java
+
+compile-raupenpiler:
+	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 ../main/resources/output/CompilerInput.class .java/resources/output/raupenpiler
+
+test-raupenpiler:
+	# move the compiled class to the test/main folder
+	mv ../main/resources/output/CompilerInput.class .java/main/
+	# compile the test class
+	javac .java/main.EndToEndTester.java
+	# run the test class
+	java .java/main.EndToEndTester
+
+
+
+clean:
+	# clean main output folders
+	rm -f ../main/resources/output/*.class
+	rm -f ../main/resources/output/*.jar
+	# clean resources output folders
+	rm -f ./resources/output/javac/*.class
+	rm -f ./resources/output/raupenpiler/*.class
+	rm -f ./resources/output/raupenpiler/*.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

@@ -1,5 +1,7 @@
 # Scanner
+
 ## Scanner Input
+
 ### Beispiel 1: Empty Class
 
     String empty class = "public class Name {}";
@@ -15,64 +17,77 @@
             "}"
 
 ## 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]
 
-### Beispiel 2: Filled Class
-
-    [TokClass,TokIdentifier "javaFileInput.Example",TokLeftBrace]
-    [TokIf,TokLeftParen,TokIdentifier "x",TokLessThan,TokNumber 5,TokRightParen,TokLeftBrace]
-    [TokFor,TokLeftParen,TokIdentifier "int",TokIdentifier "i",TokAssign,TokNumber 0,TokSemicolon,TokIdentifier "i",TokLessThan,TokNumber 10,TokSemicolon,TokIdentifier "i",TokPlus,TokPlus,TokRightParen,TokLeftBrace]
-    [TokWhile,TokLeftParen,TokIdentifier "true",TokRightParen,TokLeftBrace]
-    [TokIdentifier "x",TokAssign,TokNumber 5,TokSemicolon]
-    [TokRightBrace]
-
 # Parser
-## Parser Input 
+
+## Parser Input
+
+CommonTokenStream
 (Scanner Output)
 
 ## Parser Output (AST)
+
+(program (classDeclaration (accessType public) class Name { }))
+
+ParseTree
+
 ### Beispiel 1: Empty Class
 
-    
-
-### Beispiel 2: Filled Class
-
-    
-
 # Semantische Analyse / Typcheck
-## Typcheck Input 
+
+## Typcheck Input
+
 (Parser Output = AST)
 
 ## Typcheck Output
 
 ### Beispiel 1: Empty Class
 
-
-
-### Beispiel 2: Filled Class
-
-
 # Bytecodegenerierung
-## Bytecodegenerierung Input 
+
+## 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
 
-### Beispiel 2: Filled Class
- 
+wenn beides erfolgreich
+
+- Ergebnis vom eigenen Compiler mithilfe von main.EndToEndTester ausführen
+- (Ergebnis von javac mithilfe von main.EndToEndTester 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.EndToEndTester.java
+- -> Hab ich alles umgesetzt

src/test/java/main/EndToEndTester.java

@@ -0,0 +1,45 @@
+package main;
+
+/**
+ * This class is used to test the output of the compiler.
+ *
+ * <p>Im gleichen Ordner wie diese Datei (EndToEndTester.java) muss die selbst kompilierte CompilerInput.class Datei sein.
+ * <br><strong>Hinweis:</strong> Diese muss man also vom Ordner <code> main/resources/output </code> in diesen Ordner hier (test/java/main) rein kopieren. (bis es eine bessere Lösung gibt -> bin grad in der Make dran das alles hier automatisch zu machen)</p>
+ *
+ * <p>Die selbst kompilierte .class Datei wird dann hier drin geladen und eine Instanz von ihr erstellt, es können auch Methoden aufgerufen werden.
+ * <p>Diese EndToEndTester.java Datei wird dann in <code> \src\test\java> </code>  mit <code>javac .\main.EndToEndTester.java</code> kompiliert und mit <code>java main.EndToEndTester</code> ausgeführt.
+ * Wenn unser Compiler funktioniert, sollten keine Errors kommen (sondern nur die Ausgaben, die wir in der CompilerInput.java Datei gemacht haben,
+ * oder Methoden, die wir hier aufrufen).</p>
+ *
+ * <p><strong>PROBLEM:</strong> Hier kommen Errors, was eigentlich heißt, dass der Compiler nicht funktioniert, der Test sollte eigentlich passen.
+ * <br><strong>DENN:</strong> Wenn ich statt unserem CompilerInput.class die CompilerInput.class von javac verwende (aus  <code> src/test/resources/output/javac </code>), dann funktioniert es.</p>
+ */
+public class EndToEndTester {
+    public static void main(String[] args) {
+        try {
+            // Try to load the class named "CompilerInput"
+            Class<?> cls = Class.forName("CompilerInput");
+            // Print a success message if the class is loaded successfully
+            System.out.println("Class loaded successfully: " + cls.getName());
+
+            // Try to create an instance of the loaded class
+            Object instance = cls.getDeclaredConstructor().newInstance();
+            // Print a success message if the instance is created successfully
+            System.out.println("Instance created: " + instance);
+
+
+            // If the class has a main method, you can invoke it
+            // cls.getMethod("main", String[].class).invoke(null, (Object) new String[]{});
+
+            // If the class has other methods, you can invoke them as well
+            // Example: cls.getMethod("someMethod").invoke(instance);
+
+        } catch (ClassNotFoundException e) {
+            // Print an error message if the class is not found
+            System.err.println("Class not found: " + e.getMessage());
+        } catch (Exception e) {
+            // Print an error message if any other exception occurs during class loading or instance creation
+            System.err.println("Error during class loading or execution: " + e.getMessage());
+        }
+    }
+}

src/test/java/main/InputFilesTest.java

@@ -0,0 +1,236 @@
+package main;
+
+import org.junit.jupiter.api.Disabled;
+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");
+
+        List<File> files = getJavaFilesFromDirectory(combinedFeatureTests);
+        // files.addAll(getJavaFilesFromDirectory(endabgabeTests));
+        // files.addAll(getJavaFilesFromDirectory(singleFeatureSemanticTests));
+        files.addAll(getJavaFilesFromDirectory(singleFeatureTests));
+        // files.addAll(getJavaFilesFromDirectory(typedAstFeatureTests));
+
+        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
+    @Disabled
+    public void areEndabgabeTestsActuallyValid() 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 endabgabeTests = new File("src/test/resources/input/endabgabeTests");
+
+        List<File> files = getJavaFilesFromDirectory(endabgabeTests);
+
+        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
+    @Disabled
+    public void areSingleFeatureSemanticTestsActuallyValid() 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 singleFeatureSemanticTests = new File("src/test/resources/input/singleFeatureSemanticTests");
+
+        List<File> files = getJavaFilesFromDirectory(singleFeatureSemanticTests);
+
+        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.");
+        }
+    }
+
+
+    @Test
+    @Disabled
+    public void areTypedAstFeatureTestsActuallyValid() 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 typedAstFeatureTests = new File("src/test/resources/input/typedAstFeatureTests");
+
+        List<File> files = getJavaFilesFromDirectory(typedAstFeatureTests);
+
+        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();
+        }
+    }
+}

src/test/java/main/MainTest.java

@@ -0,0 +1,25 @@
+package main;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+import parser.ParserTest;
+import parser.ScannerTest;
+import semantic.EndToTypedAstTest;
+import semantic.SemanticTest;
+
+/**
+ * This class is a test suite that runs all the test classes in the project.
+ * <p> run: <code> mvn test </code>
+ * <p> check results in console or <code> target/surefire-reports </code>
+ */
+@RunWith(Suite.class)
+@Suite.SuiteClasses({
+        InputFilesTest.class,
+        ScannerTest.class,
+        ParserTest.class,
+        SemanticTest.class,
+        EndToTypedAstTest.class
+})
+public class MainTest {
+    // This class remains empty, it is used only as a holder for the above annotations
+}

src/test/java/parser/AstBuilderTest.java

@@ -0,0 +1,692 @@
+package parser;
+
+import ast.ASTNode;
+import ast.ClassNode;
+import ast.ProgramNode;
+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.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.members.*;
+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.statementexpressions.methodcallstatementnexpressions.TargetNode;
+import ast.statements.*;
+import ast.type.AccessModifierNode;
+import ast.type.EnumValueNode;
+import ast.type.ValueNode;
+import ast.type.type.BaseType;
+import ast.type.type.ReferenceType;
+import ast.type.type.TypeEnum;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DisplayName("Untyped Abstract Syntax Tree")
+class AstBuilderTest {
+
+    private final static String directoryPath = "src/test/resources/input/singleFeatureTests/";
+
+    @Test
+    @DisplayName("Empty Class Test")
+    public void emptyClassTest() {
+        ClassNode emptyClass = Helper.generateEmptyClass("EmptyClass");
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(emptyClass);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "EmptyClass.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Multiple Empty Classes Test")
+    public void multipleEmptyClassesTest() {
+        ClassNode class1 = Helper.generateEmptyClass("MultipleClasses");
+        ClassNode class2 = Helper.generateEmptyClass("TestClass2");
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+        expected.addClass(class2);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "MultipleClasses.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Empty Class Test with Constructor")
+    public void emptyClassWithConstructorTest() {
+        ClassNode class1 = Helper.generateEmptyClass("EmptyClassWithConstructor");
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "EmptyClassWithConstructor.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Field Test")
+    public void fieldTest() {
+        ClassNode class1 = Helper.generateEmptyClass("Field");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "Field.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Field Test with Accessmodifier")
+    public void fieldTestWithModifier() {
+        ClassNode class1 = Helper.generateEmptyClass("FieldWithAccessModifier");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "FieldWithAccessModifier.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Comments Ignore Test")
+    public void commentsIgnoreTest() {
+        ClassNode class1 = Helper.generateEmptyClass("Comments");
+        class1.addMember(new FieldNode(new AccessModifierNode("private"), new BaseType(TypeEnum.INT), "a"));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "Comments.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor Parameter Test")
+    public void constructorParameterTest() {
+        BlockNode block = new BlockNode();
+        block.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "ConstructorParameter", block);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        ClassNode class1 = new ClassNode("public", "ConstructorParameter");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "ConstructorParameter.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("This Dot Test")
+    public void thisDotTest() {
+        BlockNode block = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        ValueNode value = new ValueNode(EnumValueNode.INT_VALUE, "1");
+        IExpressionNode expression = new UnaryNode(value);
+
+        block.addStatement(new AssignNode(assignable, expression));
+        block.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "ThisDot", block);
+
+        ClassNode class1 = new ClassNode("public", "ThisDot");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "ThisDot.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor This Dot Test")
+    public void constructorThisDotTest() {
+        BlockNode block = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        IExpressionNode expression = new UnaryNode("a");
+
+        block.addStatement(new AssignNode(assignable, expression));
+        block.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "ConstructorThisDot", block);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+
+        ClassNode class1 = new ClassNode("public", "ConstructorThisDot");
+        class1.addMember(new FieldNode(new AccessModifierNode("private"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "ConstructorThisDot.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Void Methoden Test")
+    public void voidMethodenTest() {
+        ClassNode class1 = Helper.generateEmptyClass("VoidMethod");
+        BlockNode block = new BlockNode();
+        block.addStatement(new ReturnNode(null));
+        class1.addMember(new MethodNode("public", null, true, "test", block));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "VoidMethod.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor Method call Test")
+    public void constructorMethodCallTest() {
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        IExpressionNode expression = new UnaryNode(new MethodCallNode(null, "testMethod"));
+
+        blockCon.addStatement(new AssignNode(assignable, expression));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "ConstructorMethodCall", blockCon);
+
+        BlockNode blockMethod = new BlockNode();
+        blockMethod.addStatement(new ReturnNode(new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "1"))));
+        MethodNode method = new MethodNode("public", new BaseType(TypeEnum.INT), false, "testMethod", blockMethod);
+
+        ClassNode class1 = new ClassNode("public", "ConstructorMethodCall");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+        class1.addMember(method);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "ConstructorMethodCall.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor Method call Parameters Test")
+    public void constructorMethodCallParametersTest() {
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        MethodCallNode methodCall = new MethodCallNode(null, "testMethod");
+        methodCall.addExpression(new UnaryNode("a"));
+        IExpressionNode expression = new UnaryNode(methodCall);
+
+        blockCon.addStatement(new AssignNode(assignable, expression));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "ConstructorMethodCallParameters", blockCon);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+
+        BlockNode blockMethod = new BlockNode();
+        blockMethod.addStatement(new ReturnNode(new UnaryNode("a")));
+        MethodNode method = new MethodNode("public", new BaseType(TypeEnum.INT), false, "testMethod", blockMethod);
+        method.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+
+        ClassNode class1 = new ClassNode("public", "ConstructorMethodCallParameters");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+        class1.addMember(method);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "ConstructorMethodCallParameters.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Char Test")
+    public void charTest() {
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        MethodCallNode methodCall = new MethodCallNode(null, "testMethod");
+        methodCall.addExpression(new UnaryNode("a"));
+        IExpressionNode expression = new UnaryNode(methodCall);
+
+        blockCon.addStatement(new AssignNode(assignable, expression));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "Char", blockCon);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.CHAR), "a"));
+
+        BlockNode blockMethod = new BlockNode();
+        blockMethod.addStatement(new ReturnNode(new UnaryNode("a")));
+        MethodNode method = new MethodNode("public", new BaseType(TypeEnum.CHAR), false, "testMethod", blockMethod);
+        method.addParameter(new ParameterNode(new BaseType(TypeEnum.CHAR), "a"));
+
+        ClassNode class1 = new ClassNode("public", "Char");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.CHAR), "a"));
+        class1.addMember(constructor);
+        class1.addMember(method);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "Char.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Null Test")
+    public void nullTest() {
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        blockCon.addStatement(new AssignNode(assignable, new UnaryNode(new ValueNode(EnumValueNode.NULL_VALUE, "null"))));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "Null", blockCon);
+
+        ClassNode class1 = new ClassNode("public", "Null");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new ReferenceType("Null"), "a"));
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "Null.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("If Test")
+    public void ifTest() {
+        BlockNode block = new BlockNode();
+        block.addStatement(new LocalVariableDeclarationNode(new BaseType(TypeEnum.INT), "intValue", "=", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "5"))));
+
+        BlockNode ifBlock = new BlockNode();
+        ifBlock.addStatement(new DecrementNode(CrementType.SUFFIX, new AssignableNode("intValue")));
+        block.addStatement(new IfElseNode(new IfNode(new NonCalculationNode(new UnaryNode("intValue"), "==", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "5"))), ifBlock), null));
+
+        block.addStatement(new ReturnNode(null));
+
+        ConstructorNode constructor = new ConstructorNode("public", "If", block);
+
+        ClassNode class1 = new ClassNode("public", "If");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "If.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("If Else Test")
+    public void ifElseTest() {
+        BlockNode block = new BlockNode();
+        block.addStatement(new LocalVariableDeclarationNode(new BaseType(TypeEnum.INT), "intValue", "=", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "5"))));
+
+        BlockNode ifBlock = new BlockNode();
+        ifBlock.addStatement(new DecrementNode(CrementType.SUFFIX, new AssignableNode("intValue")));
+        BlockNode elseBlock = new BlockNode();
+        elseBlock.addStatement(new IncrementNode(CrementType.SUFFIX, new AssignableNode("intValue")));
+        block.addStatement(new IfElseNode(new IfNode(new NonCalculationNode(new UnaryNode("intValue"), "==", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "5"))), ifBlock), new ElseNode(elseBlock)));
+
+        block.addStatement(new ReturnNode(null));
+
+        ConstructorNode constructor = new ConstructorNode("public", "IfElse", block);
+
+        ClassNode class1 = new ClassNode("public", "IfElse");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "IfElse.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("If Else If ElseTest")
+    public void ifElseIfElseTest() {
+        BlockNode block = new BlockNode();
+        block.addStatement(new LocalVariableDeclarationNode(new BaseType(TypeEnum.INT), "intValue", "=", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "5"))));
+
+        BlockNode ifBlock = new BlockNode();
+        ifBlock.addStatement(new DecrementNode(CrementType.SUFFIX, new AssignableNode("intValue")));
+        BlockNode elseBlock = new BlockNode();
+        elseBlock.addStatement(new IncrementNode(CrementType.SUFFIX, new AssignableNode("intValue")));
+
+        IfElseNode ifElseStatement = new IfElseNode(new IfNode(new NonCalculationNode(new UnaryNode("intValue"), "==", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "5"))), ifBlock), new ElseNode(elseBlock));
+
+        BlockNode ifElseBlock = new BlockNode();
+        ifElseBlock.addStatement(new IncrementNode(CrementType.SUFFIX, new AssignableNode("intValue")));
+        ifElseStatement.addElseIfStatement(new IfNode(new NonCalculationNode(new UnaryNode("intValue"), "==", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "4"))), ifElseBlock));
+
+        block.addStatement(ifElseStatement);
+
+        block.addStatement(new ReturnNode(null));
+
+        ConstructorNode constructor = new ConstructorNode("public", "IfElseIfElse", block);
+
+        ClassNode class1 = new ClassNode("public", "IfElseIfElse");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "IfElseIfElse.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Self Reference Test")
+    public void selfReferneceTest(){
+
+        ClassNode testClass = Helper.generateEmptyClass("SelfReference");
+
+        MemberNode testClassObject = new FieldNode(new AccessModifierNode("public"), new ReferenceType("SelfReference"),"selfReference");
+
+        BlockNode testMethod1Block = new BlockNode();
+        testMethod1Block.addStatement(new ReturnNode(new UnaryNode(new MethodCallNode(new TargetNode(true), "testMethod2"))));
+        MethodNode testMethod1 = new MethodNode("public", new BaseType(TypeEnum.INT), false, "testMethod1", testMethod1Block);
+
+        BlockNode testMethod2Block = new BlockNode();
+        testMethod2Block.addStatement(new ReturnNode(new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE,"1"))));
+        MethodNode testMethod2 = new MethodNode("public", new BaseType(TypeEnum.INT), false, "testMethod2", testMethod2Block);
+
+        BlockNode testMethod3Block = new BlockNode();
+        testMethod3Block.addStatement(new LocalVariableDeclarationNode(new ReferenceType("SelfReference"),"selfReference1", "=", new UnaryNode(new NewDeclarationNode("SelfReference")))); // Assing einfach "=" ?
+        MemberAccessNode methodAccess = new MemberAccessNode(false);
+        methodAccess.addIdentifier("selfReference1");
+        methodAccess.addIdentifier("selfReference");
+        TargetNode methodTarget = new TargetNode(methodAccess);
+        testMethod3Block.addStatement(new ReturnNode(new UnaryNode(new MethodCallNode(methodTarget,"testMethod1"))));
+        MethodNode testMethod3 = new MethodNode("public", new BaseType(TypeEnum.INT), false, "testMethod3", testMethod3Block);
+
+        testClass.addMember(testClassObject);
+        testClass.addMember(testMethod1);
+        testClass.addMember(testMethod2);
+        testClass.addMember(testMethod3);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(testClass);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "SelfReference.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Variable Compare Test")
+    public void variableCompareTest(){
+        ClassNode class1 = Helper.generateEmptyClass("VariableCompare");
+        UnaryNode trueValue = new UnaryNode(new ValueNode(EnumValueNode.BOOLEAN_VALUE,"true"));
+        UnaryNode falseValue = new UnaryNode(new ValueNode(EnumValueNode.BOOLEAN_VALUE,"false"));
+
+        BlockNode trueBlock = new BlockNode();
+        trueBlock.addStatement(new ReturnNode(trueValue));
+        MethodNode trueMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "trueMethod", trueBlock);
+
+        BlockNode falseBlock = new BlockNode();
+        falseBlock.addStatement(new ReturnNode(falseValue));
+        MethodNode falseMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "falseMethod", falseBlock);
+
+        BlockNode trueAndTrueBlock = new BlockNode();
+        trueAndTrueBlock.addStatement(new ReturnNode(new NonCalculationNode(trueValue, "&&", trueValue)));
+        MethodNode trueAndTrueMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "trueAndTrueMethod", trueAndTrueBlock);
+
+        BlockNode trueAndFalseBlock = new BlockNode();
+        trueAndFalseBlock.addStatement(new ReturnNode(new NonCalculationNode(trueValue, "&&", falseValue)));
+        MethodNode trueAndFalseMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "trueAndFalseMethod", trueAndFalseBlock);
+
+        BlockNode falseAndFalseBlock = new BlockNode();
+        falseAndFalseBlock.addStatement(new ReturnNode(new NonCalculationNode(falseValue, "&&", falseValue)));
+        MethodNode falseAndFalseMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "falseAndFalseMethod", falseAndFalseBlock);
+
+        BlockNode trueOrTrueBlock = new BlockNode();
+        trueOrTrueBlock.addStatement(new ReturnNode(new NonCalculationNode(trueValue, "||", trueValue)));
+        MethodNode trueOrFalseMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "trueOrTrueMethod", trueOrTrueBlock);
+
+        BlockNode falseOrFalseBlock = new BlockNode();
+        falseOrFalseBlock.addStatement(new ReturnNode(new NonCalculationNode(falseValue, "||", falseValue)));
+        MethodNode falseOrFalseMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "falseOrFalseMethod", falseOrFalseBlock);
+
+        class1.addMember(trueMethod);
+        class1.addMember(falseMethod);
+        class1.addMember(trueAndTrueMethod);
+        class1.addMember(trueAndFalseMethod);
+        class1.addMember(falseAndFalseMethod);
+        class1.addMember(trueOrFalseMethod);
+        class1.addMember(falseOrFalseMethod);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "VariableCompare.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Variable Calculation Test")
+    public void variableCalculationTest(){
+        ClassNode class1 = Helper.generateEmptyClass("VariableCalculation");
+
+        BlockNode aPlusBBlock = new BlockNode();
+        aPlusBBlock.addStatement(new ReturnNode(new CalculationNode(new CalculationNode(new DotNode(new DotSubstractionNode("a"))), "+", new DotNode(new DotSubstractionNode("b")))));
+        MethodNode aPlusBMethod = new MethodNode("public", new BaseType(TypeEnum.INT), false, "aPlusB", aPlusBBlock);
+        aPlusBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        aPlusBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        BlockNode aMinusBBlock = new BlockNode();
+        aMinusBBlock.addStatement(new ReturnNode(new CalculationNode(new CalculationNode(new DotNode(new DotSubstractionNode("a"))), "-", new DotNode(new DotSubstractionNode("b")))));
+        MethodNode aMinusBMethod = new MethodNode("public", new BaseType(TypeEnum.INT), false, "aMinusB", aMinusBBlock);
+        aMinusBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        aMinusBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        BlockNode aTimeBBlock = new BlockNode();
+        aTimeBBlock.addStatement(new ReturnNode(new CalculationNode(new DotNode(new DotNode(new DotSubstractionNode("a")), "*", new DotSubstractionNode("b")))));
+        MethodNode aTimeBMethod = new MethodNode("public", new BaseType(TypeEnum.INT), false, "aTimeB", aTimeBBlock);
+        aTimeBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        aTimeBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        BlockNode aDivBBlock = new BlockNode();
+        aDivBBlock.addStatement(new ReturnNode(new CalculationNode(new DotNode(new DotNode(new DotSubstractionNode("a")), "/", new DotSubstractionNode("b")))));
+        MethodNode aDivBMethod = new MethodNode("public", new BaseType(TypeEnum.INT), false, "aDivB", aDivBBlock);
+        aDivBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        aDivBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        BlockNode complexCalcBlock = new BlockNode();
+        complexCalcBlock.addStatement(new ReturnNode(new CalculationNode(null, null, new DotNode(new DotNode(new DotNode(new DotNode(new DotSubstractionNode("a")), "*", new DotSubstractionNode("b")), "/", new DotSubstractionNode(new ValueNode(EnumValueNode.INT_VALUE, "1"))), "*", new DotSubstractionNode(new ValueNode(EnumValueNode.INT_VALUE, "3"))))));
+        MethodNode complexCalcMethod = new MethodNode("public", new BaseType(TypeEnum.INT), false, "complexCalc", complexCalcBlock);
+        complexCalcMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        complexCalcMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        BlockNode aSmallerBBlock = new BlockNode();
+        aSmallerBBlock.addStatement(new ReturnNode(new NonCalculationNode(new UnaryNode("a"), "<", new UnaryNode("b"))));
+        MethodNode aSmallerBMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "aSmallerB", aSmallerBBlock);
+        aSmallerBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        aSmallerBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        BlockNode aGreaterBBlock = new BlockNode();
+        aGreaterBBlock.addStatement(new ReturnNode(new NonCalculationNode(new UnaryNode("a"), ">", new UnaryNode("b"))));
+        MethodNode aGreaterBMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "aGreaterB", aGreaterBBlock);
+        aGreaterBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        aGreaterBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        BlockNode aEqualsBBlock = new BlockNode();
+        aEqualsBBlock.addStatement(new ReturnNode(new NonCalculationNode(new UnaryNode("a"), "==", new UnaryNode("b"))));
+        MethodNode aEqualsBMethod = new MethodNode("public", new BaseType(TypeEnum.BOOL), false, "aEqualsB", aEqualsBBlock);
+        aEqualsBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        aEqualsBMethod.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        class1.addMember(aPlusBMethod);
+        class1.addMember(aMinusBMethod);
+        class1.addMember(aTimeBMethod);
+        class1.addMember(aDivBMethod);
+        class1.addMember(complexCalcMethod);
+        class1.addMember(aSmallerBMethod);
+        class1.addMember(aGreaterBMethod);
+        class1.addMember(aEqualsBMethod);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "VariableCalculation.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Main Method Test")
+    public void mainMethodTest(){
+        ClassNode class1 = Helper.generateEmptyClass("MainMethod");
+
+        BlockNode block = new BlockNode();
+        block.addStatement(new ReturnNode(null));
+
+        class1.addMember(new MainMethodNode(block));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "MainMethod.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("While Test")
+    public void whileTest(){
+        NonCalculationNode condition = new NonCalculationNode(new UnaryNode("i"), ">", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "0")));
+
+        BlockNode whileBlock = new BlockNode();
+        whileBlock.addStatement(new DecrementNode(CrementType.SUFFIX, new AssignableNode("i")));
+
+        WhileNode whileStatement = new WhileNode(condition, whileBlock);
+
+        BlockNode blockCon = new BlockNode();
+        blockCon.addStatement(new LocalVariableDeclarationNode(new BaseType(TypeEnum.INT), "i", "=", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "10"))));
+        blockCon.addStatement(whileStatement);
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", blockCon);
+
+        ClassNode class1 = new ClassNode("public", "While");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "While.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Do While Test")
+    public void doWhileTest(){
+        NonCalculationNode condition = new NonCalculationNode(new UnaryNode("i"), "<", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "10")));
+
+        BlockNode whileBlock = new BlockNode();
+        whileBlock.addStatement(new IncrementNode(CrementType.SUFFIX, new AssignableNode("i")));
+
+        WhileNode whileStatement = new WhileNode(condition, whileBlock);
+
+        BlockNode blockDoWhile = new BlockNode();
+        blockDoWhile.addStatement(whileBlock);
+        blockDoWhile.addStatement(whileStatement);
+
+        BlockNode blockCon = new BlockNode();
+        blockCon.addStatement(new LocalVariableDeclarationNode(new BaseType(TypeEnum.INT), "i", "=", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "0"))));
+        blockCon.addStatement(blockDoWhile);
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", blockCon);
+
+        ClassNode class1 = new ClassNode("public", "DoWhile");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "DoWhile.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("For Test")
+    public void forTest(){
+        LocalVariableDeclarationNode forDeclaration = new LocalVariableDeclarationNode(new BaseType(TypeEnum.INT), "i", "=", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "0")));
+
+        AssignableNode assignable = new AssignableNode("i");
+        IncrementNode increment = new IncrementNode(CrementType.SUFFIX, assignable);
+
+        LocalVariableDeclarationNode declaration = new LocalVariableDeclarationNode(new BaseType(TypeEnum.INT), "a", null, null);
+
+        BlockNode whileBlock = new BlockNode();
+        whileBlock.addStatement(declaration);
+        whileBlock.addStatement(increment);
+
+        WhileNode whileStatement = new WhileNode(new NonCalculationNode(new UnaryNode("i"), "<", new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "10"))), whileBlock);
+
+        BlockNode forStatement = new BlockNode();
+        forStatement.addStatement(forDeclaration);
+        forStatement.addStatement(whileStatement);
+
+        BlockNode blockCon = new BlockNode();
+        blockCon.addStatement(forStatement);
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", blockCon);
+
+        ClassNode class1 = new ClassNode("public", "For");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST(directoryPath + "For.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+}