public static ArgumentEx <string> IsNotNullOrEmpty(this ArgumentEx <string> arg)
{
arg.IsNotNull();
arg.IsNotEmpty();
return(arg);
}
public static ArgumentEx <string> FileDoesExistAtPath(this ArgumentEx <string> arg)
{
if (!File.Exists(arg.Value))
{
throw new IOException("File does not exist at path: {0}".FormatWith(arg.Value));
}
return(arg);
}
public static ArgumentEx <string> StartsWith(this ArgumentEx <string> arg, string prefix)
{
if (!arg.Value.StartsWith(prefix))
{
throw new ArgumentException("Parameter {0} must start with {1}.".FormatWith(arg.Name, prefix), arg.Name);
}
return(arg);
}
public static ArgumentEx <byte> MeetsCriteria(this ArgumentEx <byte> x, Func <byte, bool> predicate)
{
if (predicate(x))
{
return(x);
}
throw new ArgumentException("The argument {0} does not meet the required criteria.", x.Name);
}
public static ArgumentEx <T> IsNotNull <T>(this ArgumentEx <T> arg) where T : class
{
if (arg.Value == null)
{
throw new ArgumentNullException(arg.Name);
}
return(arg); // for fluency
}
public static ArgumentEx <string> IsNotEmpty(this ArgumentEx <string> arg)
{
if (arg == "")
{
throw new ArgumentException("The argument {0} may not be empty.".FormatWith(arg.Name), arg.Name);
}
return(arg);
}
public static ArgumentEx <T> ExistsIn <T>(this ArgumentEx <T> arg, IEnumerable <T> list)
{
if (!list.Contains(arg.Value))
{
throw new ArgumentException(
"The argument {0} does not exist in the list provided.".FormatWith(arg.Name),
arg.Name);
}
return(arg);
}
public static ArgumentEx <byte> IsBetween(
this ArgumentEx <byte> x,
byte lowerBound,
byte upperBound,
bool inclusive = true)
{
if (!inclusive)
{
if (x > lowerBound && x < upperBound)
{
return(x);
}
}
if (x >= lowerBound && x <= upperBound)
{
return(x);
}
throw new ArgumentException(
"The argument {0} is not between {1} and {2}.".FormatWith(x.Name, lowerBound, upperBound));
}
