i22022/NichtHaskell
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Merge branch 'master' of https://gitea.hb.dhbw-stuttgart.de/i22022/NichtHaskell

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This commit is contained in:
Julian Murek 2024-05-31 12:11:24 +02:00
commit 50215afb07
5 changed files with 78 additions and 34 deletions
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4
src/main/java/Input.java
View File

@ -7,7 +7,9 @@ class Example {
class Example2 {
boolean instVarBool;
int m(int n){
if(instVarBool){
boolean localBool;
localBool = true;
if(localBool){
return n;
}
return -1;

16
src/main/java/abstractSyntaxTree/Expression/IntConstantExpression.java
View File

@ -1,6 +1,12 @@
package abstractSyntaxTree.Expression;
import TypeCheck.AbstractType;
import TypeCheck.TypeCheckResult;
import abstractSyntaxTree.Parameter.ParameterList;
import org.objectweb.asm.MethodVisitor;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Objects;
@ -11,6 +17,16 @@ public class IntConstantExpression extends AbstractType implements IExpression{
this.value = value;
}
@Override
public TypeCheckResult typeCheck(HashMap<String, HashMap<String, HashMap<String, ParameterList>>> methodContext, HashMap<String, HashMap<String, String>> typeContext, HashMap<String, String> localVars) throws Exception {
return null;
}
@Override
public void codeGen(MethodVisitor mv, LinkedHashMap<String, String> localVars, HashMap<String, HashMap<String, String>> typeContext) throws Exception {
}
@Override
public boolean equals(Object o) {
if (this == o) return true;

8
src/main/java/abstractSyntaxTree/Expression/LocalVarIdentifier.java
View File

@ -25,7 +25,13 @@ public class LocalVarIdentifier 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 Exception {
return null;
TypeCheckResult result = new TypeCheckResult();
if (localVars.containsKey(identifier)) {
result.type = localVars.get(identifier);
} else {
throw new Exception("TypeCheck Exception: local var does not exist");
}
return result;
}
@Override

13
src/main/java/abstractSyntaxTree/Statement/BlockStatement.java
View File

@ -36,6 +36,8 @@ public class BlockStatement extends AbstractType implements IStatement {
}
for (IStatement statement : statements) {
// todo remove later if there are no null statement any more
if (statement != null) {
TypeCheckResult typeOfCurrentStatement = statement.typeCheck(methodContext, typeContext, localVars);
if (typeOfCurrentStatement.type.contains(",")) {
@ -45,18 +47,18 @@ public class BlockStatement extends AbstractType implements IStatement {
String firstType = substrings[0];
String secondType = substrings[1];
if(!firstType.equals(this.returnType) || !firstType.equals(this.returnType)){
if(!firstType.equals("void")){
if (!firstType.equals(this.returnType) || !firstType.equals(this.returnType)) {
if (!firstType.equals("void")) {
throw new Exception("TypeCeck Exception: if paths return wrong type");
}
if(!secondType.equals("void")){
if (!secondType.equals("void")) {
throw new Exception("TypeCeck Exception: else paths return wrong type");
}
boolean firstIsVoid = firstType.equals("void");
if(!firstIsVoid){
if (!firstIsVoid) {
typeOfCurrentStatement.type = firstType;
}else{
} else {
typeOfCurrentStatement.type = secondType;
}
}
@ -67,6 +69,7 @@ public class BlockStatement extends AbstractType implements IStatement {
throw new Exception("TypeCheck Exception: Block returns the wrong type.");
}
}
}
result.type = this.returnType;
// todo check if the block returns the needed return type in every case
// todo ignore unreachable statements?

37
src/main/java/astGenerator/ASTGenerator.java
View File

@ -3,10 +3,7 @@ package astGenerator;
import abstractSyntaxTree.Class.FieldDecl;
import abstractSyntaxTree.Class.MethodDecl;
import abstractSyntaxTree.Class.RefType;
import abstractSyntaxTree.Expression.BinaryExpression;
import abstractSyntaxTree.Expression.IExpression;
import abstractSyntaxTree.Expression.IntConstantExpression;
import abstractSyntaxTree.Expression.LocalVarIdentifier;
import abstractSyntaxTree.Expression.*;
import abstractSyntaxTree.Node;
import abstractSyntaxTree.Parameter.Parameter;
import abstractSyntaxTree.Parameter.ParameterList;
@ -176,9 +173,12 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
@Override
public Node visitAssign(DecafParser.AssignContext ctx) {
return new AssignStatementExpression("", null, null);
Node right = visitExpression(ctx.expression());
Node left = visitAssignableExpr(ctx.assignableExpr());
return new AssignStatementExpression(ctx.Assign().getText(),(IExpression) left, (IExpression) right);
}
@Override
public Node visitMethodCall(DecafParser.MethodCallContext ctx) {
return super.visitMethodCall(ctx);
@ -240,13 +240,14 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
//todo
@Override
public Node visitDotSubExpr(DecafParser.DotSubExprContext ctx) {
// if (ctx.IntValue() != null) {
// int value = Integer.parseInt(ctx.IntValue().getText());
// return new IntConstantExpression(value);
// }
if(ctx.Identifier() != null) {
if (ctx.IntValue() != null) {
int value = Integer.parseInt(ctx.IntValue().getText());
return new IntConstantExpression(value);
} else if(ctx.Identifier() != null) {
String identifier = ctx.Identifier().getText();
return new LocalVarIdentifier(identifier);
} else if(ctx.instVar() != null) {
return visitInstVar(ctx.instVar());
}
return null;
}
@ -283,4 +284,20 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
}
return null;
}
@Override
public Node visitInstVar(DecafParser.InstVarContext ctx) {
return super.visitInstVar(ctx);
}
// @Override
// public Node visitArgumentList(DecafParser.ArgumentListContext ctx) {
// if (ctx.expression().size() == 1) {
// return visitExpression(ctx.expression(0));
// } else if (ctx.expression().size() >= 2) {
// for(DecafParser.ExpressionContext expressionContext: ctx.expression()) {
//
// }
// }
// }
}