Add support for the skip attr on msg!

Author: robertwayne

rust/bufferfish/src/lib.rs

@@ -7,20 +7,25 @@ pub use bufferfish_derive::{Decode, Encode};
 #[cfg(feature = "derive")]
 pub use compiler::generate;
 
-/// Helper macro for defining packets with reduced boilerplate.
+/// Helper macro for defining messages with reduced boilerplate.
 ///
 /// # Examples
 ///
 /// ```rust
-/// # use bufferfish::packet;
+/// # use bufferfish::msg;
 /// # enum ClientEventId { HeartbeatAck, ChatMessage }
-/// // Empty packet
-/// packet!(HeartbeatAckPacket, ClientEventId::HeartbeatAck);
+/// // Empty message
+/// msg!(HeartbeatAckMessage, ClientEventId::HeartbeatAck);
 ///
-/// // Packet with fields
-/// packet!(SendChatMessagePacket, ClientEventId::ChatMessage, {
+/// // Message with fields
+/// msg!(SendChatMessage, ClientEventId::ChatMessage, {
 ///     pub content: String,
 /// });
+///
+/// // Message with skip attribute for client-side generation
+/// msg!(ServerOnlyMessage, ClientEventId::ServerData, skip = "client", {
+///     pub secret: String,
+/// });
 /// ```
 #[cfg(feature = "derive")]
 #[macro_export]
@@ -32,6 +37,13 @@ macro_rules! msg {
         pub struct $name;
     };
 
+    // Empty message with skip attribute
+    ($name:ident, $id:expr, skip = $target:expr) => {
+        #[derive(Debug, Encode)]
+        #[bufferfish($id, skip = $target)]
+        pub struct $name;
+    };
+
     // Message with fields
     ($name:ident, $id:expr, { $($field:vis $field_name:ident: $field_type:ty),* $(,)? }) => {
         #[derive(Debug, Encode)]
@@ -40,6 +52,15 @@ macro_rules! msg {
             $($field $field_name: $field_type,)*
         }
     };
+
+    // Message with fields and skip attribute
+    ($name:ident, $id:expr, skip = $target:expr, { $($field:vis $field_name:ident: $field_type:ty),* $(,)? }) => {
+        #[derive(Debug, Encode)]
+        #[bufferfish($id, skip = $target)]
+        pub struct $name {
+            $($field $field_name: $field_type,)*
+        }
+    };
 }
 
 #[cfg(feature = "derive")]