private static void AssertNumber(string functionName, CTObject arg)
{
if (arg.GetType() != typeof(CTNumber))
{
throw new TypeError(functionName, CTNumber.TypeName, arg.DisplayType());
}
}
public NotAProcedureError(CTObject obj)
: base(string.Format("object of type {0} is not a procedure\ngiven: {1}", obj.DisplayType(), obj))
{
}