private object Add(object left, object right)
{
if (left.GetType() == typeof(string))
{
return((string)left + right);
}
else if (right.GetType() == typeof(string))
{
return(left + (string)right);
}
else if (left.GetType() == typeof(char))
{
return(Types.ConvertValue <string>((char)left) + right);
}
else if (right.GetType() == typeof(char))
{
return(left + Types.ConvertValue <string>((char)right));
}
else if (Types.IsPrimitiveType(left.GetType()) && Types.IsPrimitiveType(right.GetType()))
{
int index = Types.ResolvePrimitiveTypeIndex(left.GetType(), right.GetType());
return(MathSnippets.Add(
Types.CoerceValue(left, index),
Types.CoerceValue(right, index),
index));
}
return(null);
}
private object Divide(object left, object right)
{
int index = Types.ResolvePrimitiveTypeIndex(left.GetType(), right.GetType());
return(MathSnippets.Divide(
Types.CoerceValue(left, index),
Types.CoerceValue(right, index),
index));
}
private object NotEqual(object left, object right)
{
if (left == null && right != null && right.GetType() == typeof(string))
{
return(true);
}
else if (left != null && left.GetType() == typeof(string) && right == null)
{
return(false);
}
else if (left.GetType() == typeof(string) && right.GetType() == typeof(string))
{
return(((string)left).CompareTo((string)right) != 0);
}
else
{
int index = Types.ResolvePrimitiveTypeIndex(left.GetType(), right.GetType());
return(MathSnippets.NotEqual(
Types.CoerceValue(left, index),
Types.CoerceValue(right, index),
index));
}
}