NichtHaskell/Source/abstractSyntaxTree/Expression/UnaryExpression.java

package abstractSyntaxTree.Expression;

import TypeCheck.AbstractType;
import TypeCheck.TypeCheckHelper;
import TypeCheck.TypeCheckResult;
import abstractSyntaxTree.Datatype.IDatatype;

import java.util.Objects;

public class UnaryExpression extends AbstractType implements IExpression{
    public String operator;
    public IDatatype operand;
    @Override
    public TypeCheckResult typeCheck() throws Exception {
        TypeCheckResult result = new TypeCheckResult();

        TypeCheckResult operandTypeCheckResult = operand.typeCheck();
        String operandType = operandTypeCheckResult.type;

        switch (operator) {

            case "!" :{
                if (Objects.equals(operandType, "bool")){
                    result.type = "bool";
                }
                break;
            }

            case "-":
            case "+":
                if (Objects.equals(operandType, "int")){
                    result.type = "int";
                }
                break;

        }

        setTypeCheckResult(result);
        return result;
    }
}