package abstractSyntaxTree.StatementExpression;

import TypeCheck.AbstractType;
import TypeCheck.TypeCheckHelper;
import TypeCheck.TypeCheckResult;
import abstractSyntaxTree.Expression.IExpression;
import abstractSyntaxTree.Statement.IStatement;

import java.util.Objects;

public class AssignStatementExpression extends AbstractType implements IExpression, IStatement {
    public String operator;
    public IExpression left;
    public IExpression right;

    @Override
    public TypeCheckResult typeCheck() throws Exception {
        TypeCheckHelper helper = new TypeCheckHelper();
        TypeCheckResult result = new TypeCheckResult();

        TypeCheckResult leftType = left.typeCheck();
        TypeCheckResult rightType = right.typeCheck();

        String upperbound = helper.upperBound(leftType.type, rightType.type);
        if (Objects.equals(upperbound, leftType.type)) {
            result.type = leftType.type;
        }
        setTypeCheckResult(result);
        return result;
    }
}