Enum Socket 

pub enum Socket<T, Id> {
    AtMostOne(Option<T>),
    ExactlyOne(T),
    AtLeastOne(HashMap<Id, T>),
    Any(HashMap<Id, T>),
}

Container for plugin instances or dispatch results.

The variant corresponds directly to the interface’s InterfaceCardinality:

Cardinality	Socket Variant	Contents
ExactlyOne	ExactlyOne( T )	Single value, guaranteed present
AtMostOne	AtMostOne( Option<T> )	Optional single value
AtLeastOne	AtLeastOne( HashMap )	Map of plugin ID → value, at least one entry
Any	Any( HashMap )	Map of plugin ID → value, may be empty

When used with PluginTreeHead::dispatch, T is Result<Val, DispatchError>.

Variants

AtMostOne(Option<T>)

Zero or one value. Used when cardinality is AtMostOne.

ExactlyOne(T)

Exactly one value, guaranteed present. Used when cardinality is ExactlyOne.

AtLeastOne(HashMap<Id, T>)

One or more values keyed by plugin ID. Used when cardinality is AtLeastOne.

Any(HashMap<Id, T>)

Zero or more values keyed by plugin ID. Used when cardinality is Any.

Trait Implementations

impl<T: Debug, Id: Debug> Debug for Socket<T, Id>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<Id> From<Socket<Val, Id>> for Val

fn from(socket: Socket<Val, Id>) -> Self

Converts to this type from the input type.