protected bool IsNumberT2L()
{
// TODO: meaningful (translated?) error message
var t = FirstChild.IsNumber();
if (!SecondChild.IsNumber() == t)
{
throw new SemanticsErrorException(this, "Children are different");
}
return(false);
}
protected bool IsNumberN2N()
{
// TODO: meaningful (translated?) error message
if (!FirstChild.IsNumber())
{
throw new SemanticsErrorException(this, "First child must be number");
}
if (!SecondChild.IsNumber())
{
throw new SemanticsErrorException(this, "Second child must be number");
}
return(true);
}
