public override object VisitExpressionContentMul(FaParser.ExpressionContentMulContext context)
{
object result = null;
object left = Visit(context.expressionContent(0));
object right = Visit(context.expressionContent(1));
bool isMod = context.MUL().GetText().Equals("%");
bool isMul = context.MUL().GetText().Equals("*");
bool isDiv = context.MUL().GetText().Equals("/");
bool leftIsNum = left is int || left is double;
bool rigthIsNum = right is int || right is double;
bool areNums = leftIsNum && rigthIsNum;
bool areStringMul = (left is int && right is string) || (left is string && right is int);
if (isDiv && rigthIsNum && Convert.ToDouble(right) == 0)
{
Debug.LogError("Error en división por cero");
// Console.WriteLine("Error en división por cero");
MyConsole.main.AppendText("Error en división por cero");
return(null);
}
if (areNums)
{
result = isMul ? Convert.ToDouble(left) * Convert.ToDouble(right) : result;
result = isDiv ? Convert.ToDouble(left) / Convert.ToDouble(right) : result;
result = isMod ? Convert.ToDouble(left) % Convert.ToDouble(right) : result;
}
if (areStringMul)
{
result = "";
for (int i = 0; i < (left is int?(int)left :(int)right); i++)
{
result += (left is int?(string)right : (string)left);
}
}
return(result);
}
/// <summary>
/// Visit a parse tree produced by the <c>expressionContentMul</c>
/// labeled alternative in <see cref="FaParser.expressionContent"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitExpressionContentMul([NotNull] FaParser.ExpressionContentMulContext context)
{
return(VisitChildren(context));
}
