/// <summary>
/// Adds the supplied <see cref="AttributeField"/> to the <see cref="ArgumentDictionary"/>.
/// </summary>
/// <param name="attr">The <see cref="ArgumentAttribute"/> to use the <see cref="ArgumentAttribute.LongName"/> or <see cref="AttributeField.Attr.ShortName"/> of.</param>
/// <param name="fields">The <see cref="AttributeField"/> to add to the <see cref="ArgumentDictionary"/>.</param>
public void Add(ArgumentAttribute attr, AttributeField field)
{
if (this.innerContainer.ContainsKey(attr.LongName))
{
this.innerContainer[attr.LongName].Add(field);
}
else
{
this.innerContainer.Add(attr.LongName, new List <AttributeField> {
field
});
}
if (this.innerContainer.ContainsKey(attr.ShortName))
{
this.innerContainer[attr.ShortName].Add(field);
}
else
{
this.innerContainer.Add(attr.ShortName, new List <AttributeField> {
field
});
}
this.cachedValues = null;
}
/// <summary>
/// For the specified <see cref="AttributeField"/> <paramref name="field"/>, for all instances in the <paramref name="instanceSource"/>, set the associated field to the supplied <paramref name="value"/>.
/// </summary>
/// <param name="value">The value to use for the <paramref name="field"/>'s new value.</param>
/// <param name="field">The <see cref="AttributeField"/> to target - instances in <paramref name="instanceSource"/> will have their value changed for this field.</param>
/// <param name="instanceSource">The instances upon which to change the associated fields values.</param>
private static void SetInstanceFieldValue(
string value,
AttributeField field,
IEnumerable <object> instanceSource)
{
foreach (object instance in
instanceSource.Where(x => x.GetType().GetFields(Context.bindingFlags).Contains(field.Field)))
{
field.Field.SetValue(instance, Convert.ChangeType(value, field.Field.FieldType));
}
}
/// <summary>
/// Invokes the <see cref="Context"/>, initializing any objects in <see cref="Context.Instances"/> with the appropriate values.
/// </summary>
/// <param name="mode">Controls the scope of the invocation. View <see cref="ControlModes"/> for information on what these do.</param>
public static void Invoke(ControlModes mode = ControlModes.RegisteredTypesOnly)
{
if (Context.Invoked)
{
throw new InvalidOperationException("Cannot invoke multiple times.");
}
if (mode == ControlModes.RegisteredTypesOnly)
{
Context.fields = new Lazy <ArgumentDictionary>(() =>
Context.Iterate(
Context.Instances
.Select(x => x.GetType())
.Distinct()));
}
IEnumerable <string> alreadyUsedNames =
Context.manualArguments
.Where(x => fields.Value.ContainsKey(x.LongName))
.Select(x => x.LongName)
.Concat(
Context.manualArguments
.Where(x => fields.Value.ContainsKey(x.ShortName))
.Select(x => x.ShortName));
if (alreadyUsedNames.Any())
{
throw new InvalidOperationException(
$"ArgumentGroup contained argument names already in use: {string.Join(", ", alreadyUsedNames)}");
}
Context.SetInstanceFieldValues(Context.Fields, Context.Instances);
List <IArgument> userSupplied =
Context.manualArguments.Invoke(Context.ParsedArgs).ToList();
foreach (TreeNode <string> argument in
Context.ParsedArgs.Root.Children.Where(x =>
!userSupplied.Any(y => x.Value == y.LongName || x.Value == y.ShortName)))
{
if (fields.Value.ContainsKey(argument.Value))
{
IEnumerable <AttributeField> currentPosition = fields.Value[argument.Value];
if (currentPosition.Count() == 1 && // There is a single expected field for that attribute.
currentPosition.First().Attr.Position == -1 && // The only expected field is a flag.
argument.Children.Count == 0) // No value was supplied for the field.
{
Context.SetInstanceFieldValue(
"True",
currentPosition.First(),
Context.Instances);
userSupplied.Add(currentPosition.First().Attr);
}
else if (currentPosition.Count() == argument.Children.Count)
{
for (int counter = 0; counter < argument.Children.Count; counter++)
{
AttributeField currentField = currentPosition.ElementAt(counter);
Context.SetInstanceFieldValue(
argument.Children[counter].Value,
currentField,
Context.Instances);
userSupplied.Add(currentField.Attr);
}
}
else
{
throw new ArgumentException($"Malformed argument \"{argument.Value}\".");
}
}
else
{
throw new ArgumentException($"Unrecognized argument \"{argument.Value}\".");
}
}
IArgument[] remainingArguments =
Context.Fields
.Select(x => (IArgument)x.Attr)
.Concat(Context.manualArguments)
.Except(userSupplied)
.ToArray();
if (remainingArguments.Any(x => x.Required))
{
IEnumerable <string> missingRequiredArguments =
remainingArguments
.Where(x => x.Required)
.Select(x => $"{x.ShortName} ({x.LongName})");
throw new ArgumentException(
$"Missing required arguments: {string.Join(", ", missingRequiredArguments)}");
}
Context.Invoked = true;
}
