Fix errors in if Statments.

For and Do While loop as While loop.

.idea/ANTLRv4ToolGrammarProperties.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ANTLRv4ToolGrammarProperties">
+    <option name="perGrammarGenerationSettings">
+      <list>
+        <PerGrammarGenerationSettings>
+          <option name="fileName" value="$PROJECT_DIR$/src/main/java/parser/grammar/SimpleJava.g4" />
+          <option name="autoGen" value="true" />
+          <option name="outputDir" value="C:\Users\janni\Desktop\NichtHaskell2.0\src\main\java" />
+          <option name="libDir" value="" />
+          <option name="encoding" value="" />
+          <option name="pkg" value="parser.generated" />
+          <option name="language" value="" />
+          <option name="generateVisitor" value="true" />
+        </PerGrammarGenerationSettings>
+      </list>
+    </option>
+  </component>
+</project>

src/main/java/ast/ASTNode.java

@@ -1,5 +1,20 @@
 package ast;
 
-public interface ASTNode { }
+import bytecode.visitor.ClassVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public interface ASTNode {
+
+    //Todo: @BruderJohn & @i22007 Interface anwenden + geeignetetn Methodename.
+
+    /*
+    Typecheck:
+    public TypeCheckResult acceptType(SemanticVisitor visitor);
+
+    Bytecode:
+    public void accepByteCode(ClassVisitor classVisitor);
+     */
+}
 
 

src/main/java/ast/ClassNode.java

@@ -1,11 +1,10 @@
 package ast;
 
 import ast.type.AccessModifierNode;
-import ast.type.EnumAccessModifierNode;
 import bytecode.visitor.ClassVisitor;
-import ast.member.ConstructorNode;
+import ast.members.ConstructorNode;
-import ast.member.MemberNode;
+import ast.members.MemberNode;
-import ast.member.MethodNode;
+import ast.members.MethodNode;
 import semantic.SemanticVisitor;
 import typechecker.TypeCheckResult;
 import visitor.Visitable;

src/main/java/ast/expressions/AssignableExpressionNode.java

@@ -1,4 +1,4 @@
-package ast.expression;
+package ast.expressions;
 
 public class AssignableExpressionNode {
 }

src/main/java/ast/expressions/ExpressionNode.java

@@ -1,4 +1,4 @@
-package ast.expression;
+package ast.expressions;
 
 public class ExpressionNode {
 }

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

@@ -1,7 +1,7 @@
-package ast.member;
+package ast.members;
 
-import ast.block.BlockNode;
+import ast.statements.BlockStatementNode;
-import ast.parameter.ParameterNode;
+import ast.parameters.ParameterNode;
 import ast.type.AccessModifierNode;
 import bytecode.visitor.MethodVisitor;
 import visitor.Visitable;
@@ -13,9 +13,9 @@ public class ConstructorNode extends MethodNode implements Visitable {
     public AccessModifierNode accessType;
     public String identifier;
     public List<ParameterNode> parameters = new ArrayList<>();
-    public BlockNode body;
+    public BlockStatementNode body;
 
-    public ConstructorNode(String accessType, String identifier, BlockNode body) {
+    public ConstructorNode(String accessType, String identifier, BlockStatementNode body) {
         this.accessType = new AccessModifierNode(accessType);
         this.identifier = identifier;
         this.body = body;

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

@@ -1,4 +1,4 @@
-package ast.member;
+package ast.members;
 
 import ast.type.AccessModifierNode;
 import ast.type.TypeNode;

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

@@ -1,4 +1,4 @@
-package ast.member;
+package ast.members;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonSubTypes;

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

@@ -1,4 +1,4 @@
-package ast.member;
+package ast.members;
 
 import bytecode.visitor.MethodVisitor;
 import semantic.SemanticVisitor;

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

@@ -1,4 +1,4 @@
-package ast.parameter;
+package ast.parameters;
 
 import ast.ASTNode;
 import ast.type.TypeNode;

src/main/java/ast/statement/ForStatementNode.java

@@ -1,23 +0,0 @@
-package ast.statement;
-
-import ast.ASTNode;
-import ast.expression.ExpressionNode;
-
-public class ForStatementNode implements ASTNode {
-    ExpressionNode statementExpressionInit;
-    StatementNode localVariableDeclarationInit;
-    ExpressionNode expression;
-    ExpressionNode statementExpression;
-
-    public ForStatementNode(ExpressionNode statementExpressionInit, ExpressionNode expression, ExpressionNode statementExpression) {
-        this.statementExpressionInit = statementExpressionInit;
-        this.expression = expression;
-        this.statementExpression = statementExpression;
-    }
-
-    public ForStatementNode(StatementNode localVariableDeclarationInit, ExpressionNode expression, ExpressionNode statementExpression) {
-        this.localVariableDeclarationInit = localVariableDeclarationInit;
-        this.expression = expression;
-        this.statementExpression = statementExpression;
-    }
-}

src/main/java/ast/statement/StatementNode.java

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

src/main/java/ast/statement/WhileStatementNode.java

@@ -1,15 +0,0 @@
-package ast.statement;
-
-import ast.ASTNode;
-import ast.block.BlockNode;
-import ast.expression.ExpressionNode;
-
-public class WhileStatementNode implements ASTNode {
-    ExpressionNode expression;
-    BlockNode block;
-
-    public WhileStatementNode(ExpressionNode expression, BlockNode block) {
-        this.expression = expression;
-        this.block = block;
-    }
-}

src/main/java/ast/statement/ifstatement/ElseStatementNode.java

@@ -1,12 +0,0 @@
-package ast.statement.ifstatement;
-
-import ast.ASTNode;
-import ast.block.BlockNode;
-
-public class ElseStatementNode implements ASTNode {
-    BlockNode block;
-
-    public ElseStatementNode(BlockNode block) {
-        this.block = block;
-    }
-}

src/main/java/ast/statement/ifstatement/IfElseStatementNode.java

@@ -1,20 +0,0 @@
-package ast.statement.ifstatement;
-
-import ast.ASTNode;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class IfElseStatementNode implements ASTNode {
-    IfStatementNode ifStatement;
-    List<ElseStatementNode> elseStatements = new ArrayList<>();
-
-    public IfElseStatementNode(IfStatementNode ifStatement) {
-        this.ifStatement = ifStatement;
-    }
-
-    public void addElseStatement(ElseStatementNode elseStatement) {
-        elseStatements.add(elseStatement);
-    }
-
-}

src/main/java/ast/statement/ifstatement/IfStatementNode.java

@@ -1,15 +0,0 @@
-package ast.statement.ifstatement;
-
-import ast.ASTNode;
-import ast.block.BlockNode;
-import ast.expression.ExpressionNode;
-
-public class IfStatementNode implements ASTNode {
-    ExpressionNode expression;
-    BlockNode block;
-
-    public IfStatementNode(ExpressionNode expression, BlockNode block) {
-        this.expression = expression;
-        this.block = block;
-    }
-}

src/main/java/ast/statement/statementexpression/methodcallstatementnexpression/TargetNode.java

@@ -1,7 +0,0 @@
-package ast.statement.statementexpression.methodcallstatementnexpression;
-
-public class TargetNode {
-    String thisTarget;
-
-
-}

src/main/java/ast/statementexpressions/AssignStatementExpressionNode.java

@@ -1,8 +1,8 @@
-package ast.statement.statementexpression;
+package ast.statementexpressions;
 
 import ast.ASTNode;
-import ast.expression.AssignableExpressionNode;
+import ast.expressions.AssignableExpressionNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
 
 public class AssignStatementExpressionNode implements ASTNode {
     AssignableExpressionNode assignable;

src/main/java/ast/statementexpressions/CrementExpressionStatementExpressionNode.java

@@ -1,7 +1,7 @@
-package ast.statement.statementexpression;
+package ast.statementexpressions;
 
 import ast.ASTNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/ast/statementexpressions/NewDeclarationStatementExpressionNode.java

@@ -1,7 +1,7 @@
-package ast.statement.statementexpression;
+package ast.statementexpressions;
 
 import ast.ASTNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
 
 import java.util.ArrayList;
 import java.util.List;

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

@@ -1,7 +1,7 @@
-package ast.statement.statementexpression.methodcallstatementnexpression;
+package ast.statementexpressions.methodcallstatementnexpression;
 
 import ast.ASTNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/ast/statementexpressions/methodcallstatementnexpression/MethodCallStatementExpressionNode.java

@@ -1,7 +1,7 @@
-package ast.statement.statementexpression.methodcallstatementnexpression;
+package ast.statementexpressions.methodcallstatementnexpression;
 
 import ast.ASTNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
 
 import java.util.ArrayList;
 import java.util.List;

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

@@ -0,0 +1,7 @@
+package ast.statementexpressions.methodcallstatementnexpression;
+
+public class TargetNode {
+    String thisTarget;
+
+
+}

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

@@ -1,16 +1,13 @@
-package ast.block;
+package ast.statements;
 
 import ast.ASTNode;
-import ast.statement.StatementNode;
 
 import java.util.ArrayList;
 import java.util.List;
 
-public class BlockNode implements ASTNode {
+public class BlockStatementNode extends StatementNode implements ASTNode {
     public List<StatementNode> statements = new ArrayList<>();
 
-    public BlockNode() {}
-
     public void addStatement(StatementNode statement) {
         statements.add(statement);
     }

src/main/java/ast/statements/ElseStatementNode.java

@@ -0,0 +1,13 @@
+package ast.statements;
+
+import ast.ASTNode;
+
+public class ElseStatementNode implements ASTNode {
+    BlockStatementNode block;
+
+    public ElseStatementNode(BlockStatementNode block) {
+        this.block = block;
+    }
+
+
+}

src/main/java/ast/statements/IfElseStatementNode.java

@@ -0,0 +1,22 @@
+package ast.statements;
+
+import ast.ASTNode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class IfElseStatementNode implements ASTNode {
+    IfStatementNode ifStatement;
+    List<IfStatementNode> elseIfStatements = new ArrayList<>();
+    ElseStatementNode elseStatement;
+
+    public IfElseStatementNode(IfStatementNode ifStatement, ElseStatementNode elseStatementNode) {
+        this.ifStatement = ifStatement;
+        this.elseStatement = elseStatementNode;
+    }
+
+    public void addElseIfStatement(IfStatementNode elseIfStament) {
+        elseIfStatements.add(elseIfStament);
+    }
+
+}

src/main/java/ast/statements/IfStatementNode.java

@@ -0,0 +1,14 @@
+package ast.statements;
+
+import ast.ASTNode;
+import ast.expressions.ExpressionNode;
+
+public class IfStatementNode implements ASTNode {
+    ExpressionNode expression;
+    BlockStatementNode block;
+
+    public IfStatementNode(ExpressionNode expression, BlockStatementNode block) {
+        this.expression = expression;
+        this.block = block;
+    }
+}

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

@@ -1,7 +1,7 @@
-package ast.statement;
+package ast.statements;
 
 import ast.ASTNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
 import ast.type.TypeNode;
 
 public class LocalVariableDeclarationNode implements ASTNode {

src/main/java/ast/statements/ReturnStatementNode.java

@@ -1,11 +1,7 @@
-package ast.statement;
+package ast.statements;
 
 import ast.ASTNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
-import ast.type.TypeNode;
-
-import java.util.ArrayList;
-import java.util.List;
 
 public class ReturnStatementNode implements ASTNode {
     public ExpressionNode expression;

src/main/java/ast/statements/StatementNode.java

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

src/main/java/ast/statements/WhileStatementNode.java

@@ -0,0 +1,14 @@
+package ast.statements;
+
+import ast.ASTNode;
+import ast.expressions.ExpressionNode;
+
+public class WhileStatementNode extends StatementNode implements ASTNode {
+    ExpressionNode expression;
+    BlockStatementNode block;
+
+    public WhileStatementNode(ExpressionNode expression, BlockStatementNode block) {
+        this.expression = expression;
+        this.block = block;
+    }
+}

src/main/java/bytecode/ClassCodeGen.java

@@ -1,9 +1,9 @@
 package bytecode;
 
 import ast.ClassNode;
-import ast.member.FieldNode;
+import ast.members.FieldNode;
-import ast.member.MemberNode;
+import ast.members.MemberNode;
-import ast.member.MethodNode;
+import ast.members.MethodNode;
 import ast.type.BaseTypeNode;
 import bytecode.visitor.ClassVisitor;
 import java.io.File;

src/main/java/bytecode/Mapper.java

@@ -1,6 +1,6 @@
 package bytecode;
 
-import ast.parameter.ParameterNode;
+import ast.parameters.ParameterNode;
 import ast.type.*;
 import org.objectweb.asm.Opcodes;
 import ast.type.BaseTypeNode;

src/main/java/bytecode/MethodCodeGen.java

@@ -1,8 +1,8 @@
 package bytecode;
 
-import ast.member.ConstructorNode;
+import ast.members.ConstructorNode;
-import ast.member.MethodNode;
+import ast.members.MethodNode;
-import ast.parameter.ParameterNode;
+import ast.parameters.ParameterNode;
 import ast.type.BaseTypeNode;
 import org.objectweb.asm.ClassWriter;
 import org.objectweb.asm.Label;

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

@@ -1,7 +1,7 @@
 package bytecode.visitor;
 
 import ast.ClassNode;
-import ast.member.FieldNode;
+import ast.members.FieldNode;
 
 public interface ClassVisitor {
   void visit(ClassNode classNode);

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

@@ -1,7 +1,7 @@
 package bytecode.visitor;
 
-import ast.member.ConstructorNode;
+import ast.members.ConstructorNode;
-import ast.member.MethodNode;
+import ast.members.MethodNode;
 
 public interface MethodVisitor {
     void visit(ConstructorNode constructorNode);

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

@@ -1,24 +1,27 @@
 package parser.astBuilder;
 
 import ast.*;
-import ast.block.BlockNode;
+import ast.statements.BlockStatementNode;
-import ast.expression.AssignableExpressionNode;
+import ast.expressions.AssignableExpressionNode;
-import ast.expression.ExpressionNode;
+import ast.expressions.ExpressionNode;
-import ast.statement.ifstatement.ElseStatementNode;
+import ast.statements.ElseStatementNode;
-import ast.statement.ifstatement.IfElseStatementNode;
+import ast.statements.IfElseStatementNode;
-import ast.member.ConstructorNode;
+import ast.members.ConstructorNode;
-import ast.member.MemberNode;
+import ast.members.MemberNode;
-import ast.parameter.ParameterNode;
+import ast.parameters.ParameterNode;
-import ast.statement.*;
+import ast.statements.*;
-import ast.statement.ifstatement.IfStatementNode;
+import ast.statements.IfStatementNode;
-import ast.statement.statementexpression.AssignStatementExpressionNode;
+import ast.statementexpressions.AssignStatementExpressionNode;
-import ast.statement.statementexpression.CrementExpressionStatementExpressionNode;
+import ast.statementexpressions.CrementExpressionStatementExpressionNode;
-import ast.statement.statementexpression.methodcallstatementnexpression.ChainedMethodNode;
+import ast.statementexpressions.methodcallstatementnexpression.ChainedMethodNode;
-import ast.statement.statementexpression.methodcallstatementnexpression.MethodCallStatementExpressionNode;
+import ast.statementexpressions.methodcallstatementnexpression.MethodCallStatementExpressionNode;
-import ast.statement.statementexpression.methodcallstatementnexpression.TargetNode;
+import ast.statementexpressions.methodcallstatementnexpression.TargetNode;
 import ast.type.*;
 import parser.generated.*;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
     @Override
     public ASTNode visitProgram(SimpleJavaParser.ProgramContext ctx) {
@@ -41,7 +44,7 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @Override
     public ASTNode visitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx) {
-        ConstructorNode constructorNode = new ConstructorNode(ctx.AccessModifier().getText(), ctx.Identifier().getText(), (BlockNode) visit(ctx.block()));
+        ConstructorNode constructorNode = new ConstructorNode(ctx.AccessModifier().getText(), ctx.Identifier().getText(), (BlockStatementNode) visit(ctx.block()));
         for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
             constructorNode.addParameter((ParameterNode) visit(parameter));
         }
@@ -59,8 +62,8 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
             return visitReturnStatement(ctx.returnStatement());
         } else if(ctx.localVariableDeclaration() != null) {
             return visitLocalVariableDeclaration(ctx.localVariableDeclaration());
-        } else if(ctx.block() != null) {
+        } else if(ctx.blockStatement() != null) {
-            return visitBlock(ctx.block());
+            return visitBlockStatement(ctx.blockStatement());
         } else if(ctx.whileStatement() != null) {
             return visitWhileStatement(ctx.whileStatement());
         } else if(ctx.forStatement() != null) {
@@ -84,8 +87,8 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
     }
 
     @Override
-    public ASTNode visitBlock(SimpleJavaParser.BlockContext ctx) {
+    public ASTNode visitBlockStatement(SimpleJavaParser.BlockStatementContext ctx) {
-        BlockNode blockNode = new BlockNode();
+        BlockStatementNode blockNode = new BlockStatementNode();
         for(SimpleJavaParser.StatementContext statement : ctx.statement()) {
             blockNode.addStatement((StatementNode) visit(statement));
         }
@@ -94,36 +97,86 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @Override
     public ASTNode visitWhileStatement(SimpleJavaParser.WhileStatementContext ctx) {
-        return new WhileStatementNode((ExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.block()));
+        return new WhileStatementNode((ExpressionNode) visit(ctx.expression()), (BlockStatementNode) visit(ctx.blockStatement()));
+    }
+
+    @Override
+    public ASTNode visitDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx) {
+        ExpressionNode condition = (ExpressionNode) visit(ctx.expression());
+        BlockStatementNode doBlock = (BlockStatementNode) visit(ctx.blockStatement());
+
+        WhileStatementNode whileStatement = new WhileStatementNode(condition, doBlock);
+        BlockStatementNode resultBlock = new BlockStatementNode();
+        resultBlock.addStatement(doBlock);
+        resultBlock.addStatement(whileStatement);
+
+        return resultBlock;
     }
 
     @Override
     public ASTNode visitForStatement(SimpleJavaParser.ForStatementContext ctx) {
+
+        List<StatementNode> statements = new ArrayList<>();
+
+        //init
         if(ctx.statementExpression(0) != null){
-            return new ForStatementNode((ExpressionNode) visit(ctx.statementExpression(0)), (ExpressionNode) visit(ctx.expression()), (ExpressionNode) visit(ctx.statementExpression(1)));
+            statements.add((StatementNode) visit(ctx.statementExpression(0)));
         } else if (ctx.localVariableDeclaration() != null) {
-            return new ForStatementNode((StatementNode) visit(ctx.localVariableDeclaration()), (ExpressionNode) visit(ctx.expression()), (ExpressionNode) visit(ctx.statementExpression(1)));
+            statements.add((StatementNode) visit(ctx.localVariableDeclaration()));
         }
-        return null;
+
+        //condition
+        ExpressionNode condition = (ExpressionNode) visit(ctx.expression());
+
+        //ink
+        StatementNode increment = null;
+        if(ctx.statementExpression(1) != null){
+            increment = (StatementNode) visit(ctx.statementExpression(1));
+        }
+
+        BlockStatementNode forBlock = (BlockStatementNode) visit(ctx.blockStatement());
+
+        if(increment != null){
+            forBlock.addStatement((increment));
+        }
+
+        WhileStatementNode whileStatement = new WhileStatementNode(condition, forBlock);
+
+        statements.add(whileStatement);
+
+        BlockStatementNode resultBlock = new BlockStatementNode();
+        for(StatementNode statement : statements) {
+            resultBlock.addStatement(statement);
+        }
+
+        return resultBlock;
     }
 
     @Override
     public ASTNode visitIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx) {
-        IfElseStatementNode ifElseStatementNode =  new IfElseStatementNode((IfStatementNode) visit(ctx.ifStatement()));
+        IfElseStatementNode ifElseStatementNode =  new IfElseStatementNode((IfStatementNode) visit(ctx.ifStatement()),
-        for(SimpleJavaParser.ElseStatementContext elseStatement : ctx.elseStatement()) {
+                (ElseStatementNode) visit(ctx.elseStatement()));
-            ifElseStatementNode.addElseStatement((ElseStatementNode) visit(elseStatement));
+
+        for (SimpleJavaParser.ElseIfStatementContext elseIfStatement : ctx.elseIfStatement()){
+            ifElseStatementNode.addElseIfStatement(((IfStatementNode) visit(elseIfStatement)));
         }
+
         return ifElseStatementNode;
     }
 
     @Override
     public ASTNode visitIfStatement(SimpleJavaParser.IfStatementContext ctx) {
-        return new IfStatementNode((ExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.block()));
+        return new IfStatementNode((ExpressionNode) visit(ctx.expression()), (BlockStatementNode) visit(ctx.blockStatement()));
+    }
+
+    @Override
+    public ASTNode visitElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx) {
+        return new IfStatementNode((ExpressionNode) visit(ctx.expression()), (BlockStatementNode) visit(ctx.blockStatement()));
     }
 
     @Override
     public ASTNode visitElseStatement(SimpleJavaParser.ElseStatementContext ctx) {
-        return new ElseStatementNode((BlockNode) visit(ctx.block()));
+        return new ElseStatementNode((BlockStatementNode) visit(ctx.blockStatement()));
     }
 
     @Override

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

@@ -6,9 +6,9 @@ program: classDeclaration+;
 classDeclaration: AccessModifier? 'class' Identifier OpenCurlyBracket memberDeclaration* ClosedCurlyBracket;
 memberDeclaration: constructorDeclaration | fieldDeclaration | methodDeclaration;
 
-constructorDeclaration: AccessModifier? Identifier OpenRoundBracket parameterList? ClosedRoundBracket block;
+constructorDeclaration: AccessModifier? Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
 fieldDeclaration: AccessModifier? type Identifier Semicolon;
-methodDeclaration: MainMethodDeclaration block | AccessModifier? (type | Void) Identifier OpenRoundBracket parameterList? ClosedRoundBracket block;
+methodDeclaration: MainMethodDeclaration blockStatement | AccessModifier? (type | Void) Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
 
 parameterList: parameter (Comma parameter)*;
 parameter: type Identifier;
@@ -17,23 +17,26 @@ argumentList: (expression (Comma expression)*)?;
 // Anweisungen
 statement: returnStatement Semicolon
          | localVariableDeclaration Semicolon
-         | block
+         | blockStatement
          | whileStatement
+         | doWhileStatement
          | forStatement
          | ifElseStatement
          | statementExpression Semicolon;
 
-block: OpenCurlyBracket statement* ClosedCurlyBracket;
+blockStatement: OpenCurlyBracket statement* ClosedCurlyBracket;
 
 returnStatement: Return (expression)?;
 localVariableDeclaration: type Identifier (Assign expression)?;
 
-whileStatement: While OpenRoundBracket expression ClosedRoundBracket block;
+whileStatement: While OpenRoundBracket expression ClosedRoundBracket blockStatement;
-forStatement: For OpenRoundBracket (statementExpression | localVariableDeclaration) Semicolon (expression)? Semicolon (statementExpression)? ClosedRoundBracket block;
+doWhileStatement: Do blockStatement While OpenRoundBracket expression ClosedRoundBracket Semicolon;
+forStatement: For OpenRoundBracket (statementExpression | localVariableDeclaration) Semicolon (expression)? Semicolon (statementExpression)? ClosedRoundBracket blockStatement;
 
-ifElseStatement: ifStatement elseStatement*;
+ifElseStatement: ifStatement elseIfStatement* elseStatement?;
-ifStatement: If OpenRoundBracket expression ClosedRoundBracket block;
+ifStatement: If OpenRoundBracket expression ClosedRoundBracket blockStatement;
-elseStatement: Else block;
+elseIfStatement: Else If OpenRoundBracket expression ClosedRoundBracket blockStatement;
+elseStatement: Else blockStatement;
 
 statementExpression: assign | newDeclaration | methodCall | crementExpression;
 assign: assignableExpression Assign expression;
@@ -144,6 +147,7 @@ Comma: ',';
 Class: 'class';
 This: 'this';
 While: 'while';
+Do: 'do';
 If: 'if';
 Else: 'else';
 For: 'for';

src/main/java/semantic/SemanticVisitor.java

@@ -2,17 +2,17 @@ package semantic;
 
 
 import ast.ClassNode;
-import ast.expression.LiteralNode;
+import ast.expressions.LiteralNode;
 import ast.ProgramNode;
-import ast.expression.BinaryExpressionNode;
+import ast.expressions.BinaryExpressionNode;
-import ast.expression.IdentifierExpressionNode;
+import ast.expressions.IdentifierExpressionNode;
-import ast.expression.InstVar;
+import ast.expressions.InstVar;
-import ast.expression.UnaryExpressionNode;
+import ast.expressions.UnaryExpressionNode;
-import ast.member.FieldNode;
+import ast.members.FieldNode;
-import ast.member.MethodNode;
+import ast.members.MethodNode;
-import ast.statement.*;
+import ast.statements.*;
-import ast.expression.This;
+import ast.expressions.This;
-import ast.statement.ifstatement.IfStatementNode;
+import ast.statements.IfStatementNode;
 import typechecker.TypeCheckResult;
 
 public interface SemanticVisitor {