/// <summary>
/// Constructs and instance of ConstructorArguments from a parsable object. This is the inverse of Construct().
/// Note: will always set SubtypeName to the Type of object.
/// </summary>
/// <param name="obj">The object from which to construct the ConstructorArguments</param>
/// <param name="suppressDefaults">Specifies whether values that are equal to the defaults should be included in the resulting ArgumentCollection</param>
/// <returns>The result</returns>
public static ConstructorArguments FromParsable(object obj, Type parseTypeOrNull = null, bool suppressDefaults = false)
{
ConstructorArguments constructor = new ConstructorArguments();
constructor.SubtypeName = parseTypeOrNull == null || !parseTypeOrNull.Equals(obj.GetType()) ? obj.GetType().ToTypeString() : null;
constructor.PopulateFromParsableObject(obj, suppressDefaults);
return(constructor);
}
public static bool TryParse(string s, out T t)
{
//Helper.CheckCondition(IsParsable(), "Cannot parse type {0}. It does not have a TryParse or Parse method defined", typeof(T));
// now the general one.
bool success = false;
t = default(T);
if (_tryParse != null)
{
object[] args = new object[] { s, t };
success = (bool)_tryParse.Invoke(null, args);
if (success)
{
t = (T)args[1];
}
}
else if (_parse != null)
{
try
{
object[] args = new object[] { s };
t = (T)_parse.Invoke(null, args);
success = true;
}
catch { }
}
else
{
ConstructorArguments constLine = new ConstructorArguments(s);
try
{
t = constLine.Construct <T>();
success = true;
}
catch (HelpException)
{
throw;
}
catch (ParseException)
{
throw;
}
}
return(success);
}
public static string ToParseString(this object o, Type parseTypeOrNull = null, bool suppressDefaults = false)
{
Type t = o.GetType();
if (t.HasParseMethod() || !t.IsConstructable())
{
return(o.ToString());
}
else if (parseTypeOrNull == null)
{
return(ConstructorArguments.ToString(o)); // can only get here if t is constructable.
}
else
{
object valueAsParseType = ArgumentCollection.ImplicitlyCastValueToType(o, parseTypeOrNull);
return(ConstructorArguments.ToString(valueAsParseType, suppressDefaults));
}
}
/// <summary>
/// Simple wrapper that constructs an instance of type T from the command string.
/// See ArgumentCollection.Construct() for documentation.
/// </summary>
/// <typeparam name="T">The Parsable type to be constructed</typeparam>
/// <param name="commandString">The string from which to construct</param>
/// <returns>The fully instantiated object</returns>
public static T Construct <T>(string commandString)
{
ConstructorArguments command = new ConstructorArguments(commandString);
return(command.Construct <T>());
}
/// <summary>
/// Constructs and instance of T, then runs it. This convenience method creates an instance of CommandArguments, then
/// call ConstructAndRun on that result.
/// </summary>
/// <typeparam name="T">A //[Parsable] type that implements IExecutable.</typeparam>
/// <param name="constructorString">Constructor arguments</param>
public static void ConstructAndRun <T>(string constructorString) where T : IRunnable
{
ConstructorArguments command = new ConstructorArguments(constructorString);
command.ConstructAndRun <T>();
}
