Type Alias Dart_MessageNotifyCallback 

pub type Dart_MessageNotifyCallback = Option<unsafe extern "C" fn(destination_isolate: Dart_Isolate)>;

Aliased Type

pub enum Dart_MessageNotifyCallback {
    None,
    Some(unsafe extern "C" fn(*mut _Dart_Isolate)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut _Dart_Isolate))

Some value of type T.