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Merge remote-tracking branch 'origin/master'

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This commit is contained in:
Krauß, Josefine 2024-07-04 10:21:43 +02:00
commit 7e8c297d9a
23 changed files with 468 additions and 129 deletions
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Fakultaet.class
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20
src/Fakultaet.java Normal file
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@ -0,0 +1,20 @@
class Fakultaet {
public int fak(int number) {
if (number < 0) {
return 1;
}
int factorial = 1;
int i = 1;
while(i <= number){
factorial = factorial * i;
i = i + 1;
}
return factorial;
}
public static void main(String[] args) {
Fakultaet f = new Fakultaet();
int result = f.fak(5);
print(result);
}
}

2
src/main/java/Decaf.g4
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@ -114,7 +114,7 @@ New : 'new';
//Values
IntValue : ('+'|'-')*[0-9]+;
IntValue : ('+'|'-')?[0-9]+;
CharValue: '\''~[\r\n]?'\'';

2
src/main/java/abstractSyntaxTree/Expression/BinaryExpression.java
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@ -15,7 +15,7 @@ import java.util.Objects;
public class BinaryExpression extends AbstractType implements IExpression{
public String operator;
public IExpression left;
public IExpression left; // This needs TypeCheckResult
public IExpression right;
public BinaryExpression(String operator, IExpression left, IExpression right) {

168
src/main/java/abstractSyntaxTree/Expression/InstVarExpression.java
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@ -16,14 +16,14 @@ import java.util.LinkedHashMap;
import java.util.List;
import java.util.Objects;
public class InstVarExpression extends AbstractType implements IExpression{
public class InstVarExpression extends AbstractType implements IExpression {
public String thisClass;
public List<SubReceiver> receivers;
public List<ReceivingMethod> receivingMethods;
public String fieldName;
public InstVarExpression(List<SubReceiver> receivers, List<ReceivingMethod> receivingMethods, String fieldName){
public InstVarExpression(List<SubReceiver> receivers, List<ReceivingMethod> receivingMethods, String fieldName) {
this.receivers = receivers;
this.receivingMethods = receivingMethods;
this.fieldName = fieldName;
@ -32,7 +32,7 @@ public class InstVarExpression extends AbstractType implements IExpression{
@Override
public TypeCheckResult typeCheck(HashMap<String, HashMap<String, HashMap<String, ParameterList>>> methodContext, HashMap<String, HashMap<String, String>> typeContext, HashMap<String, String> localVars) throws TypeCheckException {
String typeOfSubreceiver = "";
if(receivers.get(0).identifier != null) {
if (receivers.get(0).identifier != null) {
String subreceiver = receivers.get(0).identifier;
typeOfSubreceiver = localVars.get(subreceiver);
if (typeOfSubreceiver == null)
@ -45,7 +45,7 @@ public class InstVarExpression extends AbstractType implements IExpression{
}
}
}else {
} else {
typeOfSubreceiver = thisClass;
}
@ -63,34 +63,161 @@ public class InstVarExpression extends AbstractType implements IExpression{
// typeContext: (ClassName, (FieldName, FieldType))
public void codeGen(MethodVisitor mv, LinkedHashMap<String, String> localVars, HashMap<String, HashMap<String, String>> typeContext, HashMap<String, HashMap<String, HashMap<String, ParameterList>>> methodContext) throws Exception {
// Load "this" onto the stack
String typeOfReciever = "";
String descriptor = "";
String classOfField = "";
// Determine if the reference is this or not
if (this.receivers.get(0).identifier != null) {
for (int i = 0; i < receivers.size(); i++) {
if (i == 0) {
// Load the local variable onto the stack
int index = -1;
int counter = 0;
for (String key : localVars.keySet()) {
if (key.equals(this.receivers.get(i).identifier)) {
index = counter + 1; // +1 because the first local variable is at index 1, 0 is used for "this"
break;
}
counter++;
}
if (index == -1) {
if (typeContext.get(thisClass).get(this.receivers.get(i).identifier) != null) {
classOfField = typeOfReciever;
typeOfReciever = typeContext.get(typeOfReciever).get(this.receivers.get(i).identifier);
descriptor = getFieldDescriptor(typeContext, typeOfReciever);
// Load the variable onto the stack
mv.visitFieldInsn(Opcodes.GETFIELD, classOfField, receivers.get(i).identifier, descriptor);
continue;
} else {
throw new Exception("Variable " + this.receivers.get(i).identifier + " not found");
}
} else {
mv.visitVarInsn(Opcodes.ALOAD, index);
// Get the class of the receiver
typeOfReciever = localVars.get(this.receivers.get(i).identifier);
/*
descriptor = getFieldDescriptor(typeContext, typeOfReciever, typeOfReciever);
mv.visitFieldInsn(Opcodes.GETFIELD, thisClass, fieldName, descriptor);
*/
continue;
}
}
// Not the first receiver
else {
// Load the local variable onto the stack
int index = -1;
int counter = 0;
for (String key : localVars.keySet()) {
if (key.equals(this.receivers.get(i).identifier)) {
index = counter + 1; // +1 because the first local variable is at index 1, 0 is used for "this"
break;
}
counter++;
}
if (index == -1) {
if (typeContext.get(typeOfReciever).get(this.receivers.get(i).identifier) != null) {
classOfField = typeOfReciever;
typeOfReciever = typeContext.get(typeOfReciever).get(this.receivers.get(i).identifier);
descriptor = getFieldDescriptor(typeContext, typeOfReciever);
// Load the variable onto the stack
mv.visitFieldInsn(Opcodes.GETFIELD, classOfField, receivers.get(i).identifier, descriptor);
continue;
} else {
throw new Exception("Variable " + this.receivers.get(i).identifier + " not found");
}
} else {
typeOfReciever = localVars.get(this.receivers.get(i).identifier);
descriptor = getFieldDescriptor(typeContext, typeOfReciever);
mv.visitFieldInsn(Opcodes.GETFIELD, typeOfReciever, fieldName, descriptor);
}
}
}
// Load the field in fieldName
// Load the local variable onto the stack
int index = -1;
int counter = 0;
for (String key : localVars.keySet()){
if (key.equals(this.receivers.get(0).identifier)){
index = counter+1; // +1 because the first local variable is at index 1, 0 is used for "this"
for (String key : localVars.keySet()) {
if (key.equals(fieldName)) {
index = counter + 1; // +1 because the first local variable is at index 1, 0 is used for "this"
break;
}
counter++;
}
if (index == -1){
throw new Exception("Variable " + this.receivers.get(0).identifier + " not found");
if (index == -1) {
if (typeContext.get(typeOfReciever).get(fieldName) != null) {
classOfField = typeOfReciever;
typeOfReciever = typeContext.get(typeOfReciever).get(fieldName);
descriptor = getFieldDescriptor(typeContext, typeOfReciever);
// Load the variable onto the stack
mv.visitFieldInsn(Opcodes.GETFIELD, classOfField, fieldName, descriptor);
} else {
throw new Exception("Variable " + fieldName + " not found");
}
} else {
typeOfReciever = localVars.get(fieldName);
descriptor = getFieldDescriptor(typeContext, typeOfReciever);
mv.visitFieldInsn(Opcodes.GETFIELD, typeOfReciever, fieldName, descriptor);
}
} else if (receivers.get(0).thisExpression) {
// Load the local variable or instVar of this onto the stack
int index = -1;
int counter = 0;
for (String key : localVars.keySet()) {
if (key.equals(fieldName)) {
index = counter + 1; // +1 because the first local variable is at index 1, 0 is used for "this"
break;
}
counter++;
}
mv.visitVarInsn(Opcodes.ALOAD, index);
} else {
// Load "this" onto the stack
mv.visitVarInsn(Opcodes.ALOAD, 0);
if (index == -1) {
mv.visitVarInsn(Opcodes.ALOAD, 0);
} else {
mv.visitVarInsn(Opcodes.ALOAD, index);
}
String fieldType = typeContext.get(thisClass).get(fieldName);
descriptor = getFieldDescriptor(typeContext, fieldType);
//Load the field onto the stack
mv.visitFieldInsn(Opcodes.GETFIELD, thisClass, fieldName, descriptor);
}
}
//Get the field information
String fieldType = typeContext.get(thisClass).get(fieldName);
private String getFieldDescriptor(HashMap<String, HashMap<String, String>> typeContext, String fieldType) {
StringBuilder descriptor = new StringBuilder();
@ -105,16 +232,13 @@ public class InstVarExpression extends AbstractType implements IExpression{
descriptor.append("C");
break;
default:
String fullReturnType = typeContext.get(thisClass).get(fieldName);
String fullReturnType = fieldType;
// If it is a class reference replace the "." with "/" and return it
if (fieldType.contains(".")) fullReturnType = fullReturnType.replaceAll("\\.", "/");
if (fullReturnType != null) descriptor.append("L").append(fullReturnType).append(";");
break;
}
// Load the variable onto the stack
mv.visitFieldInsn(Opcodes.GETFIELD, thisClass, fieldName, descriptor.toString());
return descriptor.toString();
}
@Override
@ -134,4 +258,4 @@ public class InstVarExpression extends AbstractType implements IExpression{
public TypeCheckResult getTypeCheckResult() {
return super.getTypeCheckResult();
}
}
}

4
src/main/java/abstractSyntaxTree/Statement/BlockStatement.java
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@ -8,6 +8,7 @@ import abstractSyntaxTree.Parameter.Parameter;
import abstractSyntaxTree.Parameter.ParameterList;
import abstractSyntaxTree.StatementExpression.AssignStatementExpression;
import abstractSyntaxTree.StatementExpression.MethodCallStatementExpression;
import abstractSyntaxTree.StatementExpression.NewStatementExpression;
import org.objectweb.asm.*;
import java.util.HashMap;
@ -66,6 +67,9 @@ public class BlockStatement extends AbstractType implements IStatement {
if (statement instanceof ReturnStatement returnStatement) {
returnStatement.thisClass = thisClass;
}
if (statement instanceof NewStatementExpression newStatementExpression) {
newStatementExpression.thisClass = thisClass;
}
TypeCheckResult typeOfCurrentStatement = statement.typeCheck(methodContext, typeContext, localVars);
if(statement instanceof MethodCallStatementExpression methodCall){

6
src/main/java/abstractSyntaxTree/Statement/LocalVarDecl.java
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@ -9,6 +9,7 @@ import abstractSyntaxTree.Expression.LocalVarIdentifier;
import abstractSyntaxTree.Parameter.ParameterList;
import abstractSyntaxTree.StatementExpression.AssignStatementExpression;
import abstractSyntaxTree.StatementExpression.MethodCallStatementExpression;
import abstractSyntaxTree.StatementExpression.NewStatementExpression;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
@ -36,11 +37,14 @@ public class LocalVarDecl extends AbstractType implements IStatement{
if(expression instanceof MethodCallStatementExpression){
MethodCallStatementExpression methodCall = (MethodCallStatementExpression) expression;
methodCall.thisClass = this.thisClass;
}
if(expression instanceof LocalVarIdentifier localVarIdentifier){
localVarIdentifier.thisClass = thisClass;
}
if (expression instanceof NewStatementExpression newStatementExpression){
newStatementExpression.thisClass = thisClass;
}
expression.typeCheck(methodContext, typeContext, localVars);
}

8
src/main/java/abstractSyntaxTree/Statement/PrintStatement.java
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@ -60,9 +60,13 @@ public class PrintStatement extends AbstractType implements IStatement {
}
counter++;
}
// If not a localVar, maybe a class field of this class
if (index == -1){
throw new Exception("Variable " + variableName + " not found");
String typeOfField = typeContext.get(thisClass).get(variableName);
if (typeOfField == null){
throw new Exception("Variable " + variableName + " not found in local variables or class fields.");
}
mv.visitFieldInsn(Opcodes.GETSTATIC, thisClass, variableName, "I");
}
mv.visitVarInsn(Opcodes.ILOAD, index);

2
src/main/java/abstractSyntaxTree/Statement/ReturnStatement.java
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@ -15,7 +15,7 @@ import java.util.List;
import java.util.Objects;
public class ReturnStatement extends AbstractType implements IStatement{
IExpression expression;
IExpression expression; // Needs typeCheckResult
public String thisClass;
public ReturnStatement(IExpression expression) {

33
src/main/java/abstractSyntaxTree/StatementExpression/MethodCallStatementExpression.java
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@ -18,7 +18,7 @@ import java.util.*;
public class MethodCallStatementExpression extends AbstractType implements IExpression, IStatement {
String methodName;
List<IExpression> arguments;
Receiver receiver;
Receiver receiver; // Braucht typecheckResult
List<ReceivingMethod> receivingMethods;
public String thisClass;
@ -139,7 +139,7 @@ public class MethodCallStatementExpression extends AbstractType implements IExpr
}
// Invoke the current method
String descriptor = getMethodDescriptor(receivingMethod.methodName, localVars, methodContext, receivingMethod.arguments, returnOfPreviousMethod);
String descriptor = getMethodDescriptor(receivingMethod.methodName, localVars, methodContext, receivingMethod.arguments, returnOfPreviousMethod, owner);
returnOfPreviousMethod = methodContext.get(owner).get(receivingMethod.methodName).keySet().toArray()[0].toString();
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, owner, receivingMethod.methodName, descriptor, false);
}
@ -151,13 +151,18 @@ public class MethodCallStatementExpression extends AbstractType implements IExpr
argument.codeGen(mv, localVars, typeContext, methodContext);
}
String descriptor = getMethodDescriptor(methodName, localVars, methodContext, arguments, returnOfPreviousMethod);
if (returnOfPreviousMethod != null) {
owner = returnOfPreviousMethod;
}
String descriptor = getMethodDescriptor(methodName, localVars, methodContext, arguments, returnOfPreviousMethod, owner);
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, owner, methodName, descriptor, false);
}
// ()I
private String getMethodDescriptor(String methodName, LinkedHashMap<String, String> localVars, HashMap<String, HashMap<String, HashMap<String, ParameterList>>> methodContext, List<IExpression> arguments, String returnOfPreviousMethod) {
private String getMethodDescriptor(String methodName, LinkedHashMap<String, String> localVars, HashMap<String, HashMap<String, HashMap<String, ParameterList>>> methodContext, List<IExpression> arguments, String returnOfPreviousMethod, String owner) {
StringBuilder descriptor = new StringBuilder("(");
for (IExpression argument : arguments) {
@ -189,12 +194,20 @@ public class MethodCallStatementExpression extends AbstractType implements IExpr
String classToSearchMethodIn;
//Return Type
if (receiver != null) {
classToSearchMethodIn = localVars.get(receiver.identifier);
if (classToSearchMethodIn == null) {
classToSearchMethodIn = returnOfPreviousMethod;
}
if (classToSearchMethodIn == null) {
classToSearchMethodIn = thisClass;
if (receiver.identifier != null) {
classToSearchMethodIn = localVars.get(receiver.identifier);
if (classToSearchMethodIn == null) {
classToSearchMethodIn = returnOfPreviousMethod;
}
if (classToSearchMethodIn == null) {
classToSearchMethodIn = thisClass;
}
} else {
if (receiver.instVarExpression != null && returnOfPreviousMethod != null) {
classToSearchMethodIn = returnOfPreviousMethod;
} else {
classToSearchMethodIn = owner;
}
}
} else {
classToSearchMethodIn = thisClass;

11
src/main/java/abstractSyntaxTree/StatementExpression/NewStatementExpression.java
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@ -5,6 +5,7 @@ import TypeCheck.TypeCheckException;
import TypeCheck.TypeCheckHelper;
import TypeCheck.TypeCheckResult;
import abstractSyntaxTree.Expression.IExpression;
import abstractSyntaxTree.Expression.InstVarExpression;
import abstractSyntaxTree.Parameter.Parameter;
import abstractSyntaxTree.Parameter.ParameterList;
import abstractSyntaxTree.Statement.IStatement;
@ -18,8 +19,9 @@ import java.util.List;
public class NewStatementExpression extends AbstractType implements IExpression, IStatement {
public String thisClass;
private String className;
private List<IExpression> arguments;
private List<IExpression> arguments; //These need to have a TypeCheckResult
public NewStatementExpression(String className, List<IExpression> arguments) {
this.className = className;
@ -31,6 +33,13 @@ public class NewStatementExpression extends AbstractType implements IExpression,
if(!TypeCheckHelper.typeExists(className, new ArrayList<>(typeContext.keySet()))){
throw new TypeCheckException("An instance of " + className + " is created, but the type does not exist.");
}
for (IExpression argument : arguments) {
if (argument instanceof InstVarExpression instVarExpression) {
instVarExpression.thisClass = this.thisClass;
}
argument.typeCheck(methodContext, typeContext, localVars);
}
TypeCheckResult result = new TypeCheckResult();
result.type = className;

44
src/main/java/astGenerator/ASTGenerator.java
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@ -32,27 +32,27 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
List<FieldDecl> fieldDecls = new ArrayList<>();
List<MethodDecl> methodDecls = new ArrayList<>();
boolean hasMain;
if(ctx.MainMethodDecl() != null) {
if (ctx.MainMethodDecl() != null) {
hasMain = true;
MethodDecl mainMethod = new MethodDecl(name, "void", "main", new ParameterList(new ArrayList<>()),(BlockStatement) visitBlock(ctx.block()));
MethodDecl mainMethod = new MethodDecl(name, "void", "main", new ParameterList(new ArrayList<>()), (BlockStatement) visitBlock(ctx.block()));
methodDecls.add(mainMethod);
} else {
hasMain = false;
}
for (DecafParser.LocalVarDeclContext fieldDecl: ctx.localVarDecl()) {
for (DecafParser.LocalVarDeclContext fieldDecl : ctx.localVarDecl()) {
fieldDecls.add((FieldDecl) generateFieldDecl(fieldDecl));
}
for (DecafParser.ConstuctorDeclContext constDecl: ctx.constuctorDecl()) {
for (DecafParser.ConstuctorDeclContext constDecl : ctx.constuctorDecl()) {
MethodDecl constructor = ((MethodDecl) visit(constDecl));
constructor.classThatContainsMethod = name;
methodDecls.add(constructor);
}
for (DecafParser.MethodDeclContext methodDecl: ctx.methodDecl()) {
for (DecafParser.MethodDeclContext methodDecl : ctx.methodDecl()) {
MethodDecl method = (MethodDecl) visit(methodDecl);
method.classThatContainsMethod = name;
methodDecls.add(method);
}
return new RefType(name,fieldDecls, methodDecls, hasMain);
return new RefType(name, fieldDecls, methodDecls, hasMain);
}
public Node generateFieldDecl(DecafParser.LocalVarDeclContext ctx) {
@ -68,10 +68,10 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
public Node visitLocalVarDecl(DecafParser.LocalVarDeclContext ctx) {
if (ctx.expression() != null) {
IExpression expression = (IExpression) visit(ctx.expression());
return new LocalVarDecl(ctx.type().getText(), ctx.Identifier().getText(), expression);
return new LocalVarDecl(ctx.type().getText(), ctx.Identifier().getText(), expression);
} else {
return new LocalVarDecl(ctx.type().getText(), ctx.Identifier().getText(), null);
}
return new LocalVarDecl(ctx.type().getText(), ctx.Identifier().getText(), null);
}
}
@Override
@ -99,7 +99,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
} else {
type = ctx.type().getText();
}
return new MethodDecl("", type , name, parameterList, block);
return new MethodDecl("", type, name, parameterList, block);
}
@Override
@ -110,7 +110,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
@Override
public Node visitParameterList(DecafParser.ParameterListContext ctx) {
List<Parameter> parameters = new ArrayList<>();
for (DecafParser.ParameterContext parameter: ctx.parameter()) {
for (DecafParser.ParameterContext parameter : ctx.parameter()) {
parameters.add((Parameter) visit(parameter));
}
return new ParameterList(parameters);
@ -151,7 +151,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
@Override
public Node visitBlock(DecafParser.BlockContext ctx) {
List<IStatement> stmts = new ArrayList<>();
for (DecafParser.StatementContext stmt: ctx.statement()) {
for (DecafParser.StatementContext stmt : ctx.statement()) {
Node statement = visitStatement(stmt);
stmts.add((IStatement) statement);
}
@ -199,7 +199,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
} else if (ctx.newDecl() != null) {
return visitNewDecl(ctx.newDecl());
}
return null;
return null;
}
@Override
@ -211,7 +211,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
public Node visitAssign(DecafParser.AssignContext ctx) {
Node right = visitExpression(ctx.expression());
Node left = visitAssignableExpr(ctx.assignableExpr());
return new AssignStatementExpression(ctx.Assign().getText(),(IExpression) left, (IExpression) right);
return new AssignStatementExpression(ctx.Assign().getText(), (IExpression) left, (IExpression) right);
}
@Override
@ -219,7 +219,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
String methodName = ctx.Identifier().getText();
List<IExpression> arguments = generateExpressions(ctx.argumentList());
List<ReceivingMethod> receivingMethods = new ArrayList<>();
for(DecafParser.ReceivingMethodContext receivingMethod: ctx.receivingMethod()) {
for (DecafParser.ReceivingMethodContext receivingMethod : ctx.receivingMethod()) {
receivingMethods.add((ReceivingMethod) visit(receivingMethod));
}
if (ctx.receiver() != null) {
@ -320,14 +320,14 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
if (ctx.IntValue() != null) {
int value = Integer.parseInt(ctx.IntValue().getText());
return new IntConstantExpression(value);
} else if(ctx.Identifier() != null) {
} else if (ctx.Identifier() != null) {
String identifier = ctx.Identifier().getText();
return new LocalVarIdentifier(identifier);
} else if(ctx.instVar() != null) {
} else if (ctx.instVar() != null) {
return visitInstVar(ctx.instVar());
} else if(ctx.methodCall() != null) {
} else if (ctx.methodCall() != null) {
return visitMethodCall(ctx.methodCall());
} else if(ctx.calcExpr() != null) {
} else if (ctx.calcExpr() != null) {
return visitCalcExpr(ctx.calcExpr());
}
return null;
@ -336,7 +336,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
@Override
public Node visitNonCalcExpr(DecafParser.NonCalcExprContext ctx) {
String operator;
if(ctx.nonCalcOperator().LogicalOpertor() != null) {
if (ctx.nonCalcOperator().LogicalOpertor() != null) {
operator = ctx.nonCalcOperator().LogicalOpertor().getText();
} else {
operator = ctx.nonCalcOperator().ComparisonOperator().getText();
@ -373,10 +373,10 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
List<SubReceiver> receivers = new ArrayList<>();
List<ReceivingMethod> receivingMethods = new ArrayList<>();
String fieldName = ctx.Identifier().getText();
for(DecafParser.SubReceiverContext subReceiver : ctx.subReceiver()) {
for (DecafParser.SubReceiverContext subReceiver : ctx.subReceiver()) {
receivers.add((SubReceiver) visit(subReceiver));
}
for(DecafParser.ReceivingMethodContext receivingMethod: ctx.receivingMethod()) {
for (DecafParser.ReceivingMethodContext receivingMethod : ctx.receivingMethod()) {
receivingMethods.add((ReceivingMethod) visit(receivingMethod));
}
return new InstVarExpression(receivers, receivingMethods, fieldName);

6
src/test/java/AST/testAll.java
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@ -46,14 +46,14 @@ public class testAll {
testAst(ast, pathToCode);
}
/*
@Test
public void testDivideByZero(){
Program ast = AssignWrongTypeAST.getProgram();
Program ast = DivideByZeroAST.getProgram();
String pathToCode = "failTests/DivideByzero.java";
testAst(ast, pathToCode);
}
*/
@Test
public void testcharArgument(){
Program ast = CharArgumentAST.getProgram();

34
src/test/java/ASTs/DivideByZeroAST.java
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@ -3,28 +3,48 @@ package ASTs;
import abstractSyntaxTree.Class.FieldDecl;
import abstractSyntaxTree.Class.MethodDecl;
import abstractSyntaxTree.Class.RefType;
import abstractSyntaxTree.Expression.BinaryExpression;
import abstractSyntaxTree.Expression.IntConstantExpression;
import abstractSyntaxTree.Parameter.Parameter;
import abstractSyntaxTree.Parameter.ParameterList;
import abstractSyntaxTree.Program;
import abstractSyntaxTree.Statement.BlockStatement;
import abstractSyntaxTree.Statement.IStatement;
import abstractSyntaxTree.Statement.LocalVarDecl;
import java.util.ArrayList;
import java.util.List;
public class DivideByZeroAST {
/*
public static Program getProgram() {
List<RefType> refTypeList = new ArrayList<>();
refTypeList.add(getRefType());
Program program = new Program(refTypeList);
return program;
}
public static RefType getRefType(){
List<FieldDecl> fieldDeclList = new ArrayList<>();
List<MethodDecl> methodDeclList = new ArrayList<>();
RefType refType = new RefType("DivideByZero", fieldDeclList, methodDeclList, false);
methodDeclList.add(method0());
RefType refType = new RefType("DivideByZero", fieldDeclList, methodDeclList, true);
return refType;
}
public static MethodDecl method0(){
BlockStatement blockStatement = new BlockStatement();
List<Parameter> parameterList = new ArrayList<>();
ParameterList parameterListObj = new ParameterList(parameterList);
MethodDecl methodDecl = new MethodDecl("DivideByZero", "int", "test",
BinaryExpression binaryExpression00 = new BinaryExpression("/", new IntConstantExpression(1), new IntConstantExpression(0));
LocalVarDecl localVarDecl00 = new LocalVarDecl("int", "a", binaryExpression00);
List<IStatement> iStatementList = new ArrayList<>();
iStatementList.add(localVarDecl00);
BlockStatement blockStatement = new BlockStatement(iStatementList, null);
MethodDecl methodDecl = new MethodDecl("DivideByZero", "void", "main",
new ParameterList(new ArrayList<>()), blockStatement
);
}*/
return methodDecl;
}
}

65
src/test/java/ASTs/DivideByZeroASTTyped.java
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@ -1,4 +1,69 @@
package ASTs;
import TypeCheck.TypeCheckResult;
import Typecheck.TypingHelper;
import abstractSyntaxTree.Class.FieldDecl;
import abstractSyntaxTree.Class.MethodDecl;
import abstractSyntaxTree.Class.RefType;
import abstractSyntaxTree.Expression.BinaryExpression;
import abstractSyntaxTree.Expression.IntConstantExpression;
import abstractSyntaxTree.Parameter.ParameterList;
import abstractSyntaxTree.Program;
import abstractSyntaxTree.Statement.BlockStatement;
import abstractSyntaxTree.Statement.IStatement;
import abstractSyntaxTree.Statement.LocalVarDecl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class DivideByZeroASTTyped {
public static Program getProgram() {
List<RefType> refTypeList = new ArrayList<>();
refTypeList.add(getRefType());
Program program = new Program(refTypeList);
addTyping(program);
return program;
}
public static RefType getRefType(){
List<FieldDecl> fieldDeclList = new ArrayList<>();
List<MethodDecl> methodDeclList = new ArrayList<>();
methodDeclList.add(method0());
RefType refType = new RefType("DivideByZero", fieldDeclList, methodDeclList, true);
return refType;
}
public static MethodDecl method0(){
IntConstantExpression intConstantExpression0 = new IntConstantExpression(1);
intConstantExpression0.setTypeCheckResult(new TypeCheckResult("int"));
BinaryExpression binaryExpression00 = new BinaryExpression("/", intConstantExpression0, new IntConstantExpression(0));
LocalVarDecl localVarDecl00 = new LocalVarDecl("int", "a", binaryExpression00);
List<IStatement> iStatementList = new ArrayList<>();
iStatementList.add(localVarDecl00);
BlockStatement blockStatement = new BlockStatement(iStatementList, "void");
MethodDecl methodDecl = new MethodDecl("DivideByZero", "void", "main",
new ParameterList(new ArrayList<>()), blockStatement
);
return methodDecl;
}
public static void addTyping(Program program) {
//Type Context
TypingHelper.addTypeContext(program, "DivideByZero", new HashMap<>());
//Method Context
HashMap<String, ParameterList> method0 = new HashMap<>();
method0.put("void", new ParameterList(new ArrayList<>()));
HashMap<String, HashMap<String, ParameterList>> methods = new HashMap<>();
methods.put("main", method0);
TypingHelper.addMethodContext(program, "DivideByZero", methods);
}
}

10
src/test/java/ASTs/FakultaetAST.java
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@ -76,18 +76,24 @@ public class FakultaetAST {
iStmtList0.add(localVarExpr0);
// Expression 2
IntConstantExpression intConst1 = new IntConstantExpression(0);
IntConstantExpression intConst1 = new IntConstantExpression(1);
LocalVarDecl localVarExpr1 = new LocalVarDecl("int", "i", intConst1);
iStmtList0.add(localVarExpr1);
//While Statement
BinaryExpression whileCondition = new BinaryExpression("<", new LocalVarIdentifier("i"), new LocalVarIdentifier("number"));
BinaryExpression whileCondition = new BinaryExpression("<=", new LocalVarIdentifier("i"), new LocalVarIdentifier("number"));
BinaryExpression whileBinExpr = new BinaryExpression("*", new LocalVarIdentifier("factorial"), new LocalVarIdentifier("i"));
AssignStatementExpression assignStatementExpression0 = new AssignStatementExpression("=", new LocalVarIdentifier("factorial"), whileBinExpr);
List<IStatement> whileBlockStmts = new ArrayList<>();
LocalVarIdentifier identifierI = new LocalVarIdentifier("i");
BinaryExpression rightAssign1 = new BinaryExpression("+", identifierI, new IntConstantExpression(1));
AssignStatementExpression assignStatementExpression1 = new AssignStatementExpression("=", identifierI, rightAssign1);
whileBlockStmts.add(assignStatementExpression0);
whileBlockStmts.add(assignStatementExpression1);
BlockStatement whileBlock = new BlockStatement( whileBlockStmts, null);
WhileStatement whileStatement0 = new WhileStatement(whileCondition, whileBlock);

15
src/test/java/ASTs/FakultaetASTTyped.java
View File

@ -61,8 +61,14 @@ public class FakultaetASTTyped {
// If Statament
//condition
LocalVarIdentifier binExprIdentifier = new LocalVarIdentifier("number");
TypeCheckResult typeCheckResultbinExprIdentifier = new TypeCheckResult();
typeCheckResultbinExprIdentifier.type = "int";
binExprIdentifier.setTypeCheckResult(typeCheckResultbinExprIdentifier);
IntConstantExpression binExprIntConst = new IntConstantExpression(0);
BinaryExpression binExpr = new BinaryExpression("<", binExprIdentifier, binExprIntConst);
TypeCheckResult typeCheckResultbinExpr = new TypeCheckResult();
typeCheckResultbinExpr.type = "boolean";
binExpr.setTypeCheckResult(typeCheckResultbinExpr);
IntConstantExpression return0Expr0 = new IntConstantExpression(1);
TypeCheckResult typeCheckResult1 = new TypeCheckResult();
@ -88,12 +94,19 @@ public class FakultaetASTTyped {
iStmtList0.add(localVarExpr1);
//While Statement
BinaryExpression whileCondition = new BinaryExpression("<", new LocalVarIdentifier("i"), new LocalVarIdentifier("number"));
BinaryExpression whileCondition = new BinaryExpression("<=", new LocalVarIdentifier("i"), new LocalVarIdentifier("number"));
whileCondition.setTypeCheckResult(new TypeCheckResult("void"));
BinaryExpression whileBinExpr = new BinaryExpression("*", new LocalVarIdentifier("factorial"), new LocalVarIdentifier("i"));
AssignStatementExpression assignStatementExpression0 = new AssignStatementExpression("=", new LocalVarIdentifier("factorial"), whileBinExpr);
List<IStatement> whileBlockStmts = new ArrayList<>();
LocalVarIdentifier identifierI = new LocalVarIdentifier("i");
BinaryExpression rightAssign1 = new BinaryExpression("+", identifierI, new IntConstantExpression(1));
AssignStatementExpression assignStatementExpression1 = new AssignStatementExpression("=", identifierI, rightAssign1);
whileBlockStmts.add(assignStatementExpression0);
whileBlockStmts.add(assignStatementExpression1);
BlockStatement whileBlock = new BlockStatement( whileBlockStmts, "void");
WhileStatement whileStatement0 = new WhileStatement(whileCondition, whileBlock);

82
src/test/java/ByteCode/ByteCodeTester.java
View File

@ -23,49 +23,32 @@ public class ByteCodeTester {
}
public void testByteCodeFromAst(String correctClassFilePath, Program abstractSyntaxTree, String className) {
testClassFile(false, className, abstractSyntaxTree, correctClassFilePath, null);
typeCheckWithoutmain(abstractSyntaxTree);
generateCode(abstractSyntaxTree);
testAST(correctClassFilePath, className);
}
public void testByteCodeFromTypedAst(String correctClassFilePath, Program abstractSyntaxTree, String className) {
generateCode(abstractSyntaxTree);
testAST(correctClassFilePath, className);
}
public void testClassFileFromScratch(String correctClassFilePath, String fileToComparePath, String className) {
testClassFile(true, className, null, correctClassFilePath, fileToComparePath);
Program abstractSyntaxTree = generateAST(fileToComparePath);
typeCheckWithoutmain(abstractSyntaxTree);
generateCode(abstractSyntaxTree);
testAST(correctClassFilePath, className);
}
public void testClassFile(boolean generateAST, String className, Program abstractSyntaxTree,
String correctClassFilePath, String fileToComparePath) {
if(generateAST){
String content = "";
try {
System.out.println("Classpath: " + Path.of(fileToComparePath));
content = Files.readString(Path.of(fileToComparePath));
} catch (IOException e) {
System.out.println("File not found!");
fail();
}
CharStream codeCharStream = CharStreams.fromString(content);
DecafLexer lexer = new DecafLexer(codeCharStream);
CommonTokenStream tokens = new CommonTokenStream(lexer);
tokens.fill();
DecafParser parser = new DecafParser(tokens);
ParseTree tree = parser.program();
ASTGenerator generator = new ASTGenerator();
abstractSyntaxTree = (Program) generator.visit(tree);
private void typeCheckWithoutmain(Program abstractSyntaxTree){
try {
abstractSyntaxTree.typeCheckWithoutMain();
} catch (Exception e){
System.out.println("Le Exception in le type-check");
}
}
if(generateAST){
try {
abstractSyntaxTree.typeCheckWithoutMain();
} catch (Exception e){
System.out.println("Le Exception in le type-check");
//fail();
}
}
private void generateCode(Program abstractSyntaxTree){
try {
abstractSyntaxTree.codeGen();
} catch (Exception e){
@ -73,7 +56,9 @@ public class ByteCodeTester {
e.printStackTrace();
fail();
}
}
private void testAST(String correctClassFilePath, String className) {
try {
ClassFileLoader classLoader1 = new ClassFileLoader(correctClassFilePath);
ClassFileLoader classLoader2 = new ClassFileLoader(className+ ".class");
@ -89,6 +74,31 @@ public class ByteCodeTester {
fail();
}
}
private Program generateAST(String pathToJavaFile){
String content = "";
try {
System.out.println("Classpath: " + Path.of(pathToJavaFile));
content = Files.readString(Path.of(pathToJavaFile));
} catch (IOException e) {
System.out.println("File not found!");
fail();
}
CharStream codeCharStream = CharStreams.fromString(content);
DecafLexer lexer = new DecafLexer(codeCharStream);
CommonTokenStream tokens = new CommonTokenStream(lexer);
tokens.fill();
DecafParser parser = new DecafParser(tokens);
ParseTree tree = parser.program();
ASTGenerator generator = new ASTGenerator();
Program abstractSyntaxTree = (Program) generator.visit(tree);
return abstractSyntaxTree;
}
public void compareJarFilesFromAST(Program abstractSyntaxTree, String jarPath, String[] classNames){
try {

44
src/test/java/ByteCode/CompareByteCodeBehaviour.java
View File

@ -38,6 +38,14 @@ public class CompareByteCodeBehaviour {
Method[] methods1 = class1.getDeclaredMethods();
Method[] methods2 = class2.getDeclaredMethods();
/*
for(int i = 0; i < methods1.length; i++) {
System.out.println("Method1[" + i + "]: " + methods1[i]);
System.out.println("Method2[" + i + "]: " + methods2[i]);
}
*/
for (Method method1 : methods1) {
for (Method method2 : methods2) {
if (compareMethod(method1, method2)) {
@ -49,6 +57,12 @@ public class CompareByteCodeBehaviour {
}
}
}
/*
for(int i = 0; i < this.methodArray1.size(); i++){
System.out.println("Method1[" + i + "]: " + methodArray1.get(i));
System.out.println("Method2[" + i + "]: " + methodArray2.get(i));
}
*/
}
public boolean compareMethodBehaviour(Class<?> class1, Class<?> class2){
@ -72,12 +86,23 @@ public class CompareByteCodeBehaviour {
Method[] methods2 = new Method[this.methodArray2.size()];
methods2 = this.methodArray2.toArray(methods2);
/*
for(int i = 0; i < methods1.length; i++) {
System.out.println("MethodArray1 [" + i + "]: " + methods1[i]);
System.out.println("MethodArray2 [" + i + "]: " + methods2[i]);
}
*/
System.out.println("length: " + methods1.length);
// Compare methods
for (int i = 0; i < methods1.length; i++) {
System.out.println("i: " + i);
Method method1 = methods1[i];
Method method2 = methods2[i];
System.out.println(method1);
System.out.println(method2);
method1.setAccessible(true);
method2.setAccessible(true);
@ -88,16 +113,19 @@ public class CompareByteCodeBehaviour {
Object result1 = method1.invoke(obj1, testInputs);
Object result2 = method2.invoke(obj2, testInputs);
if( (result1 == null) && (result2 == null)) {
return true;
}
if(( result1 == null) || (result2 == null) ) {
return false;
System.out.println("Result method 1: " + result1);
System.out.println("Result method 2: " + result2);
if( !((result1 == null) && (result2 == null))) {
if(( result1 == null) || (result2 == null) ) {
return false;
}
if (!result1.equals(result2)) {
return false;
}
}
if (!result1.equals(result2)) {
return false;
}
}
} catch (InstantiationException | IllegalAccessException |

28
src/test/java/ByteCode/TestAll.java
View File

@ -18,18 +18,28 @@ public class TestAll {
Program ast = emptyClassASTTyped.getEmptyProgramm();
String className = "emptyClass";
String javacode = "src/test/resources/basicClasses/emptyClass.java";
//byteCodeTester.testByteCodeFromAst(classPath, ast ,className);
byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
byteCodeTester.testByteCodeFromTypedAst(classPath, ast ,className);
//byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
}
@Test
public void testEmptyClassWithConstructor() {
String classPath = "src/test/resources/basicClasses/EmptyClassWithConstructor.class";
Program ast = EmptyClassWithConstructorASTTyped.getProgram();
String className = "EmptyClassWithConstructor";
String javacode = "src/test/resources/basicClasses/emptyClass.java";
byteCodeTester.testByteCodeFromTypedAst(classPath, ast ,className);
//byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
}
@Test
public void testFakultaet() {
String classPath = "src/test/resources/basicClasses/Fakultaet.class";
Program ast = FakultaetASTTyped.getProgram();
Program ast = FakultaetAST.getProgram();
String className = "Fakultaet";
String javacode = "src/test/resources/basicClasses/Fakultaet.java";
//byteCodeTester.testByteCodeFromAst(classPath, ast ,className);
byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
byteCodeTester.testByteCodeFromAst(classPath, ast ,className);
//byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
}
@Test
@ -38,17 +48,17 @@ public class TestAll {
Program ast = ClassWithMainASTTyped.getProgram();
String className = "classWithMain";
String javacode = "src/test/resources/basicClasses/classWithMain.java";
//testByteCodeFromAst(classPath, ast ,className);
byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
byteCodeTester.testByteCodeFromTypedAst(classPath, ast ,className);
//byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
}
@Test
public void testCharArgument() {
String classPath = "src/test/resources/SimpleTests/CharArgument.class";
//Program ast = ClassWithMainASTTyped.getProgram();
Program ast = CharArgumentAST.getProgram();
String className = "CharArgument";
String javacode = "src/test/resources/SimpleTests/CharArgument.java";
//testByteCodeFromAst(classPath, ast ,className);
byteCodeTester.testByteCodeFromAst(classPath, ast ,className);
byteCodeTester.testClassFileFromScratch(classPath, javacode, className);
}

8
src/test/java/Typecheck/TestAll.java
View File

@ -101,6 +101,14 @@ public class TestAll {
testTypeCheck(fakultaet, correctAST, expectedResult);
}
@Test
public void testDivideByZero(){
Program fakultaet = DivideByZeroAST.getProgram();
Program correctAST = DivideByZeroASTTyped.getProgram();
boolean expectedResult = true;
testTypeCheck(fakultaet, correctAST, expectedResult);
}
public void testTypeCheckWM(Program abstractSyntaxTree, Program correctAST, boolean expectedResult){
abstractSyntaxTree.classes.add(ClassWithMainASTTyped.getRefType());

BIN
src/test/resources/basicClasses/Fakultaet.class
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5
src/test/resources/basicClasses/Fakultaet.java
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@ -4,9 +4,10 @@ class Fakultaet {
return 1;
}
int factorial = 1;
int i = 0;
while(i < number){
int i = 1;
while(i <= number){
factorial = factorial * i;
i = i + 1;
}
return factorial;