1#[macro_export]
 2macro_rules! messages {
 3    ($(($name:ident, $priority:ident)),* $(,)?) => {
 4        pub fn build_typed_envelope(sender_id: PeerId, received_at: std::time::Instant, envelope: Envelope) -> Option<Box<dyn AnyTypedEnvelope>> {
 5            match envelope.payload {
 6                $(Some(envelope::Payload::$name(payload)) => {
 7                    Some(Box::new(TypedEnvelope {
 8                        sender_id,
 9                        original_sender_id: envelope.original_sender_id,
10                        message_id: envelope.id,
11                        payload,
12                        received_at,
13                    }))
14                }, )*
15                _ => None
16            }
17        }
18
19        $(
20            impl EnvelopedMessage for $name {
21                const NAME: &'static str = std::stringify!($name);
22                const PRIORITY: MessagePriority = MessagePriority::$priority;
23
24                fn into_envelope(
25                    self,
26                    id: u32,
27                    responding_to: Option<u32>,
28                    original_sender_id: Option<PeerId>,
29                ) -> Envelope {
30                    Envelope {
31                        id,
32                        responding_to,
33                        original_sender_id,
34                        payload: Some(envelope::Payload::$name(self)),
35                        ack_id: None,
36                    }
37                }
38
39                fn from_envelope(envelope: Envelope) -> Option<Self> {
40                    if let Some(envelope::Payload::$name(msg)) = envelope.payload {
41                        Some(msg)
42                    } else {
43                        None
44                    }
45                }
46            }
47        )*
48    };
49}
50
51#[macro_export]
52macro_rules! request_messages {
53    ($(($request_name:ident, $response_name:ident)),* $(,)?) => {
54        $(impl RequestMessage for $request_name {
55            type Response = $response_name;
56        })*
57    };
58}
59
60#[macro_export]
61macro_rules! entity_messages {
62    ({$id_field:ident, $entity_type:ty}, $($name:ident),* $(,)?) => {
63        $(impl EntityMessage for $name {
64            type Entity = $entity_type;
65
66            fn remote_entity_id(&self) -> u64 {
67                self.$id_field
68            }
69        })*
70    };
71}