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No commits in common. "3500ffd377f1b34d3dd3c0c3a77d8a41adf010e1" and "21da31dee304c26e3064e6adbcdaa473b0484be4" have entirely different histories.

39 changed files with 143 additions and 885 deletions

2
.idea/misc.xml generated
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@ -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\ARB00075\Documents\DH\Compilerbau\NichtHaskell2.0\src\main\java" />
<option name="outputDir" value="C:\Users\Johannes\Documents\Github\JavaCompiler\src\main\java" />
<option name="libDir" value="" />
<option name="encoding" value="" />
<option name="pkg" value="parser.generated" />

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@ -1,6 +1,5 @@
package ast;
import bytecode.visitor.ProgramVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
import visitor.Visitable;
@ -19,9 +18,4 @@ public class ProgramNode implements ASTNode, Visitable {
public TypeCheckResult accept(SemanticVisitor visitor) {
return visitor.analyze(this);
}
@Override
public void accept(ProgramVisitor programVisitor) {
programVisitor.visit(this);
}
}

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@ -2,12 +2,10 @@ 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, Visitable {
public class BinaryNode implements IExpressionNode {
private ITypeNode typeNode;
@ -25,9 +23,4 @@ public class BinaryNode implements IExpressionNode, Visitable {
public void setType(ITypeNode type) {
this.typeNode = type;
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -1,7 +1,6 @@
package ast.expressions.binaryexpressions;
import ast.type.type.*;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -34,10 +33,4 @@ public class CalculationNode extends BinaryNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -1,7 +1,6 @@
package ast.expressions.binaryexpressions;
import ast.type.type.*;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -35,9 +34,4 @@ public class DotNode extends BinaryNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -4,7 +4,6 @@ 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;
@ -37,9 +36,4 @@ public class DotSubstractionNode extends BinaryNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -3,7 +3,6 @@ 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;
@ -43,9 +42,4 @@ public class NonCalculationNode extends BinaryNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -1,7 +1,6 @@
package ast.expressions.unaryexpressions;
import ast.ASTNode;
import bytecode.visitor.MethodVisitor;
import ast.type.type.ITypeNode;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -24,10 +23,6 @@ public class MemberAccessNode implements ASTNode, Visitable {
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
public TypeCheckResult accept(SemanticVisitor visitor) {
return visitor.analyze(this);
}

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@ -2,26 +2,12 @@ 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, Visitable {
public class NotNode implements ASTNode {
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;
}
}

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@ -4,7 +4,6 @@ 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;
@ -62,9 +61,4 @@ public class UnaryNode implements IExpressionNode {
this.type = type;
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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

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

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

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@ -3,14 +3,12 @@ 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 implements Visitable {
public class ConstructorNode extends MethodNode {
public AccessModifierNode accessType;
public String identifier;
public List<ParameterNode> parameters = new ArrayList<>();
@ -27,10 +25,6 @@ public class ConstructorNode extends MethodNode implements Visitable {
}
@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()) {

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@ -2,8 +2,6 @@ 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;
@ -24,9 +22,4 @@ public class FieldNode implements MemberNode, Visitable {
return visitor.analyze(this);
}
@Override
public void accept(ClassVisitor classVisitor) {
classVisitor.visit(this);
}
}

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@ -1,18 +1,10 @@
package ast.members;
import ast.statements.BlockNode;
import bytecode.visitor.MethodVisitor;
import visitor.Visitable;
public class MainMethodNode extends MethodNode implements Visitable {
public BlockNode block;
public class MainMethodNode extends MethodNode {
public MainMethodNode(BlockNode block) {
this.block = block;
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -21,8 +21,7 @@ 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);

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@ -1,11 +0,0 @@
package ast.statement;
import ast.statements.IStatementNode;
import java.util.List;
public class BlockStatementNode {
List<IStatementNode> statements;
public BlockStatementNode(List<IStatementNode> statements) {this.statements = statements;}
}

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@ -1,7 +1,6 @@
package ast.statementexpressions;
import ast.expressions.IExpressionNode;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -19,9 +18,4 @@ public class AssignNode implements IStatementExpressionNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -1,7 +1,6 @@
package ast.statementexpressions;
import ast.expressions.IExpressionNode;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -25,9 +24,4 @@ public class NewDeclarationNode implements IStatementExpressionNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -2,10 +2,8 @@ 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 CrementType crementType;
@ -21,9 +19,4 @@ public class DecrementNode implements IStatementExpressionNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -2,7 +2,6 @@ package ast.statementexpressions.crementexpressions;
import ast.statementexpressions.AssignableNode;
import ast.statementexpressions.IStatementExpressionNode;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -20,9 +19,4 @@ public class IncrementNode implements IStatementExpressionNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -2,15 +2,11 @@ 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, Visitable {
public class ChainedMethodNode implements ASTNode {
public String identifier;
public List<IExpressionNode> expressions = new ArrayList<>();
@ -21,14 +17,4 @@ public class ChainedMethodNode implements ASTNode, Visitable {
public void addExpression(IExpressionNode expression) {
expressions.add(expression);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
@Override
public TypeCheckResult accept(SemanticVisitor visitor) {
return null;
}
}

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@ -2,7 +2,6 @@ package ast.statementexpressions.methodcallstatementnexpressions;
import ast.expressions.IExpressionNode;
import ast.statements.IStatementNode;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -33,9 +32,4 @@ public class MethodCallNode implements IStatementNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -3,7 +3,6 @@ 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;
@ -31,10 +30,6 @@ public class TargetNode implements ASTNode, Visitable {
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
public TypeCheckResult accept(SemanticVisitor visitor) {
return visitor.analyze(this);
}

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

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@ -1,5 +1,6 @@
package ast.statements;
import ast.ASTNode;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;

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@ -1,5 +1,6 @@
package ast.statements;
import ast.ASTNode;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;

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@ -1,5 +1,6 @@
package ast.statements;
import ast.ASTNode;
import ast.expressions.IExpressionNode;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;

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@ -2,7 +2,6 @@ package ast.statements;
import ast.expressions.IExpressionNode;
import ast.type.type.*;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -24,9 +23,4 @@ public class LocalVariableDeclarationNode implements IStatementNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -1,7 +1,6 @@
package ast.statements;
import ast.expressions.IExpressionNode;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
@ -22,9 +21,4 @@ public class ReturnNode implements IStatementNode {
return visitor.analyze(this);
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
}

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@ -1,5 +1,6 @@
package ast.statements;
import ast.ASTNode;
import ast.expressions.IExpressionNode;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;

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@ -1,7 +1,6 @@
package ast.type;
import ast.ASTNode;
import bytecode.visitor.MethodVisitor;
import semantic.SemanticVisitor;
import typechecker.TypeCheckResult;
import visitor.Visitable;
@ -15,10 +14,6 @@ public class ValueNode implements ASTNode, Visitable {
this.value = value;
}
@Override
public void accept(MethodVisitor methodVisitor) {
methodVisitor.visit(this);
}
@Override
public TypeCheckResult accept(SemanticVisitor visitor) {

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@ -2,78 +2,21 @@ package bytecode;
import ast.ProgramNode;
import ast.ClassNode;
import ast.members.MainMethodNode;
import ast.members.MemberNode;
import bytecode.visitor.ProgramVisitor;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
public class ByteCodeGenerator implements ProgramVisitor {
private JarOutputStream jarOutputStream;
private ByteArrayOutputStream byteArrayOutputStream;
private String outputDirectory;
private final String outputDirectoryPath;
public ByteCodeGenerator(String outputDirectory) {
this.outputDirectory = outputDirectory;
public ByteCodeGenerator(String outputDirectoryPath) {
this.outputDirectoryPath = outputDirectoryPath;
}
@Override
public void visit(ProgramNode programNode) {
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);
classDeclarationNode.accept(classCodeGen);
}
try {
jarOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
saveJarFile(byteArrayOutputStream.toByteArray(), "output.jar");
}
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();
// ClassCodeGen classCodeGen = new ClassCodeGen();
// classDeclarationNode.accept(classCodeGen);
}
}
}

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@ -10,31 +10,26 @@ 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 final String outputDirectoryPath;
public ClassCodeGen(JarOutputStream jarOutputStream, String outputDirectory) {
public ClassCodeGen(String outputDirectoryPath) {
this.outputDirectoryPath = outputDirectoryPath;
mapper = new Mapper();
this.jarOutputStream = jarOutputStream;
this.outputDirectory = outputDirectory;
}
@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) {
@ -46,27 +41,28 @@ public class ClassCodeGen implements ClassVisitor {
}
classWriter.visitEnd();
writeToJar(classWriter.toByteArray(), classNode.identifier);
printIntoClassFile(classWriter.toByteArray(), classNode.identifier, outputDirectory);
printIntoClassFile(classWriter.toByteArray(), classNode.identifier);
classWriter.visitEnd();
}
@Override
public void visit(FieldNode fieldNode) {
if (fieldNode.type instanceof BaseType) {
classWriter.visitField(mapper.mapAccessTypeToOpcode(fieldNode.accessTypeNode), fieldNode.identifier, mapper.getTypeChar((BaseType) fieldNode.type), null, null);
if(fieldNode.type instanceof BaseType baseTypeNode){
// classWriter.visitField(mapper.mapAccessTypeToOpcode(fieldNode.accessTypeNode), fieldNode.identifier, mapper.getTypeChar(baseTypeNode.enumType), null, null );
}
classWriter.visitEnd();
}
private void printIntoClassFile(byte[] byteCode, String name, String outputDirectory) {
File directory = new File(outputDirectory);
private void printIntoClassFile(byte[] byteCode, String name) {
// String outputDirectoryPath = "src/main/resources/output";
// System.out.println("Output directory path: " + outputDirectoryPath);
File directory = new File(outputDirectoryPath);
if (!directory.exists()) {
directory.mkdirs();
}
String filePath = outputDirectory + "/" + name + ".class";
String filePath = outputDirectoryPath + "/" + name + ".class";
try {
FileOutputStream fileOutputStream = new FileOutputStream(filePath);
fileOutputStream.write(byteCode);
@ -75,15 +71,4 @@ 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();
}
}
}

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@ -1,60 +1,41 @@
package bytecode;
import ast.parameters.ParameterNode;
import ast.type.*;
import ast.type.type.BaseType;
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 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 int mapAccessTypeToOpcode(AccessModifierNode type) {
// switch (type.enumAccessTypeNode) {
// case EnumAccessTypeNode.PUBLIC:
// return Opcodes.ACC_PUBLIC;
// case EnumAccessTypeNode.PRIVATE:
// return Opcodes.ACC_PRIVATE;
// }
// return 0;
// }
public String generateMethodDescriptor(BaseType type, List<ParameterNode> parameters) {
String descriptor = "(";
for (ParameterNode parameterNode : parameters) {
descriptor += getTypeChar((BaseType) parameterNode.type);
}
descriptor += ")";
descriptor += getTypeChar(type);
return descriptor;
}
// 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(ReferenceType type, List<ParameterNode> parameters) {
String descriptor = "()V";
return descriptor;
}
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;
}
// 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;
// }
}

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@ -1,28 +1,9 @@
package bytecode;
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.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;
import ast.type.type.BaseType;
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;
@ -44,433 +25,70 @@ public class MethodCodeGen implements bytecode.visitor.MethodVisitor {
localVaribales = new ArrayList<>();
}
// Method nodes
@Override
public void visit(ConstructorNode constructorNode) {
methodVisitor =
classWriter.visitMethod(mapper.mapAccessTypeToOpcode(constructorNode.accessType),
"<init>",
mapper.generateMethodDescriptor(new BaseType(TypeEnum.VOID), constructorNode.parameters),
null,
null);
// methodVisitor =
// classWriter.visitMethod(mapper.mapAccessTypeToOpcode(constructorNode.visibility),
// "<init>",
// "()V",
// null,
// null);
methodVisitor.visitCode();
localVaribales.add("this");
// Add all method parameters to localVariables
for (ParameterNode parameterNode : constructorNode.parameters) {
localVaribales.add(parameterNode.identifier);
}
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
// 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();
localVaribales.add("this");
localVaribales.add("args");
// Visit all statements
for (IStatementNode statementNode : mainMethodNode.block.statements) {
statementNode.accept(this);
}
methodVisitor.visitMaxs(0, 0);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
@Override
public void visit(MethodNode methodNode) {
methodVisitor = classWriter.visitMethod(mapper.mapAccessTypeToOpcode(methodNode.accesModifier),
methodNode.getIdentifier(),
mapper.generateMethodDescriptor((BaseType) methodNode.getType(), methodNode.parameters),
null,
null);
// if (methodNode.type instanceof BaseTypeNode baseTypeNode) {
// methodVisitor = classWriter.visitMethod(mapper.mapAccessTypeToOpcode(methodNode.visibility),
// methodNode.identifier,
// mapper.generateMethodDescriptor(baseTypeNode, methodNode.parameters),
// null,
// null);
methodVisitor.visitCode();
localVaribales.add("this");
// Add all method parameters to localVariables
for (ParameterNode parameterNode : methodNode.parameters) {
localVaribales.add(parameterNode.identifier);
}
// for (ParameterNode parameterNode : methodNode.parameters.parameters) {
// localVaribales.add(parameterNode.identifier);
// }
// Visit all statements
for (IStatementNode statementNode : methodNode.block.statements) {
statementNode.accept(this);
}
methodVisitor.visitMaxs(0, 0);
//test();
methodVisitor.visitMaxs(1, localVaribales.size());
methodVisitor.visitEnd();
// }
}
// Binary expressions
@Override
public void visit(BinaryNode binaryNode) {
binaryNode.accept(this);
}
@Override
public void visit(CalculationNode calculationNode) {
calculationNode.dotExpression.accept(this);
calculationNode.calculationExpression.accept(this);
switch (calculationNode.operator) {
case PLUS:
methodVisitor.visitInsn(IADD);
break;
case MINUS:
methodVisitor.visitInsn(ISUB);
break;
}
}
@Override
public void visit(DotNode dotNode) {
dotNode.dotExpression.accept(this);
dotNode.dotSubstractionExpression.accept(this);
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, localVaribales.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_ACMPEQ, 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) {
if (memberAccessNode.thisExpr) {
//methodVisitor.visitFieldInsn(PUTFIELD);
}
}
@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) {
}
// 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) {
// Process expression
localVariableDeclarationNode.expression.accept(this);
// Store result of expression in variable
methodVisitor.visitVarInsn(ISTORE, localVaribales.indexOf(localVariableDeclarationNode.identifier));
}
@Override
public void visit(AssignNode assignNode) {
// Process expression
assignNode.expression.accept(this);
// Store result of expression in variable
if (assignNode.assignable.memberAccess.thisExpr) {
// Global var
// /methodVisitor.visitFieldInsn(PUTFIELD, identifierExpressionNode.name, identifierExpressionNode1.name, mapper.getTypeChar(((BaseTypeNode) type).enumType));
} else {
// Local var
methodVisitor.visitVarInsn(ISTORE, localVaribales.indexOf(assignNode.assignable.identifier));
}
}
@Override
public void visit(NewDeclarationNode newDeclarationNode) {
}
@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
methodVisitor.visitInsn(IRETURN);
}
}
@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(DecrementNode decrementNode) {
switch (decrementNode.crementType) {
case PREFIX: // --i
if (decrementNode.assignableExpression.memberAccess == null) { // local Var
methodVisitor.visitIincInsn(localVaribales.indexOf(decrementNode.assignableExpression.identifier), -1);
} else { // Field or var from other object
}
break;
case SUFFIX: // i--
if (decrementNode.assignableExpression.memberAccess == null) { // local Var
methodVisitor.visitIincInsn(localVaribales.indexOf(decrementNode.assignableExpression.identifier), -1);
} else { // Field or var from other object
}
break;
}
}
@Override
public void visit(IncrementNode incrementNode) {
switch (incrementNode.crementType) {
case PREFIX: // ++i
if (incrementNode.assignableExpression.memberAccess == null) { // local Var
methodVisitor.visitIincInsn(localVaribales.indexOf(incrementNode.assignableExpression.identifier), 1);
methodVisitor.visitVarInsn(ISTORE, localVaribales.indexOf(incrementNode.assignableExpression.identifier));
} else { // Field or var from other object
}
break;
case SUFFIX: // i++
if (incrementNode.assignableExpression.memberAccess == null) { // local Var
methodVisitor.visitVarInsn(ISTORE, localVaribales.indexOf(incrementNode.assignableExpression.identifier));
methodVisitor.visitIincInsn(localVaribales.indexOf(incrementNode.assignableExpression.identifier), 1);
} else { // Field or var from other object
}
break;
}
}
@Override
public void visit(ChainedMethodNode chainedMethodNode) {
}
@Override
public void visit(MethodCallNode methodCallNode) {
}
@Override
public void visit(TargetNode targetNode) {
}
// 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();
// }
}

View File

@ -1,60 +1,9 @@
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(LocalVariableDeclarationNode localVariableDeclarationNode);
void visit(ReturnNode returnNode);
void visit(WhileNode whileNode);
// statement expression
void visit(DecrementNode decrementNode);
void visit(IncrementNode incrementNode);
void visit(ChainedMethodNode chainedMethodNode);
void visit(MethodCallNode methodCallNode);
void visit(TargetNode targetNode);
void visit(AssignNode assignNode);
void visit(NewDeclarationNode newDeclarationNode);
// type
void visit(ValueNode valueNode);
}

View File

@ -9,25 +9,42 @@ public class AllFeaturesClassExample {
this.b = b;
this.c = c;
}
private class InnerClass {
void innerMethod() {
System.out.println("Inner class method");
}
}
// Methode zur Demonstration von Kontrollstrukturen
void controlStructures() {
// if-else Anweisung
if (a > 10) {
// System.out.println("a ist größer als 10");
System.out.println("a ist größer als 10");
} else {
// System.out.println("a ist nicht größer als 10");
System.out.println("a ist nicht größer als 10");
}
// while Schleife
while (a > 0) {
// System.out.println("a ist " + a);
System.out.println("a ist " + a);
a--;
}
// for Schleife
for (int i = 0; i < 5; i++) {
// System.out.println("for Schleife Iteration: " + i);
System.out.println("for Schleife Iteration: " + i);
}
// switch Anweisung
switch (c) {
case 'a':
System.out.println("c ist ein 'a'");
break;
case 'b':
System.out.println("c ist ein 'b'");
break;
default:
System.out.println("c ist nicht 'a' oder 'b'");
}
}
@ -35,28 +52,15 @@ public class AllFeaturesClassExample {
void logicalOperations() {
// Logische UND-Operation
if (b && a > 5) {
// System.out.println("a ist größer als 5 und b ist wahr");
System.out.println("a ist größer als 5 und b ist wahr");
}
// Logische ODER-Operation
if (b || a < 5) {
// System.out.println("b ist wahr oder a ist kleiner als 5");
System.out.println("b ist wahr oder a ist kleiner als 5");
}
}
void mathOperations() {
// Addition
int sum = a + 5;
// Subtraktion
int difference = a - 5;
// Multiplikation
int product = a * 5;
// Division
int quotient = a / 5;
// Modulo
int remainder = a % 5;
}
public static void main(String[] args) {
AllFeaturesClassExample obj = new AllFeaturesClassExample(12, true, 'a');
obj.controlStructures();