private Expression And()
{
Expression expression = Equality();
while (Match(TokenType.AND))
{
Token op = Previous();
Expression right = Equality();
expression = new Expression.Logical(expression, op, right);
}
return(expression);
}
private Expression Or()
{
Expression expression = And();
while (Match(TokenType.OR))
{
Token op = Previous();
Expression right = And();
expression = new Expression.Logical(expression, op, right);
}
return(expression);
}
public object VisitLogicalExpression(Expression.Logical expression)
{
object left = Evaluate(expression.left);
if (expression.op.type == TokenType.OR)
{
if (IsTruthy(left))
{
return(left);
}
}
else
{
if (!IsTruthy(left))
{
return(left);
}
}
return(Evaluate(expression.right));
}
public string VisitLogicalExpression(Expression.Logical expression)
{
throw new NotImplementedException();
}
public object VisitLogicalExpression(Expression.Logical expression)
{
Resolve(expression.left);
Resolve(expression.right);
return(null);
}
public object VisitLogicalExpr(Expression.Logical expr)
{
throw new NotImplementedException("Resolver VisitLogicalExpr is not implemented");
}
public object VisitLogicalExpr(Expression.Logical expr)
{
throw new NotImplementedException();
}
