Reformat lines.

src/protocol/codec.rs

@@ -1,9 +1,6 @@
 //! Framed packet encoding and decoding.
 use core::{fmt, mem};
-use rkyv::{
-    Serialize, access, deserialize, rancor::Error, to_bytes,
-    util::AlignedVec,
-};
+use rkyv::{Serialize, access, deserialize, rancor::Error, to_bytes, util::AlignedVec};
 
 use super::types::{
     ArchivedCallMessage, ArchivedDataMessage, ArchivedFaultMessage, ArchivedPacketHeader,
@@ -84,18 +81,13 @@ impl<'a> ParsedFrame<'a> {
 pub fn encode_packet<P>(header: &PacketHeader, payload: &P) -> Result<FrameBytes, FrameError>
 where
     P: for<'a> Serialize<
-        rkyv::api::high::HighSerializer<
-            AlignedVec,
-            rkyv::ser::allocator::ArenaHandle<'a>,
-            Error,
-        >,
+        rkyv::api::high::HighSerializer<AlignedVec, rkyv::ser::allocator::ArenaHandle<'a>, Error>,
     >,
 {
     let header_bytes: FrameBytes = to_bytes::<Error>(header).map_err(FrameError::Serialize)?;
     let payload_bytes: FrameBytes = to_bytes::<Error>(payload).map_err(FrameError::Serialize)?;
     let header_len = u32::try_from(header_bytes.len()).map_err(|_| FrameError::LengthOverflow)?;
-    let payload_len =
-        u32::try_from(payload_bytes.len()).map_err(|_| FrameError::LengthOverflow)?;
+    let payload_len = u32::try_from(payload_bytes.len()).map_err(|_| FrameError::LengthOverflow)?;
 
     let header_start = 8usize;
     let payload_start = align_up(header_start + header_bytes.len(), SECTION_ALIGN);
@@ -105,7 +97,10 @@ where
     frame.extend_from_slice(&header_len.to_be_bytes());
     frame.extend_from_slice(&payload_len.to_be_bytes());
     frame.extend_from_slice(&header_bytes);
-    append_padding(&mut frame, payload_start - (header_start + header_bytes.len()));
+    append_padding(
+        &mut frame,
+        payload_start - (header_start + header_bytes.len()),
+    );
     frame.extend_from_slice(&payload_bytes);
     Ok(frame)
 }
@@ -131,7 +126,9 @@ pub fn decode_frame(bytes: &[u8]) -> Result<ParsedFrame<'_>, FrameError> {
     }
 
     let header = deserialize_section::<ArchivedPacketHeader, PacketHeader>(
-        bytes.get(header_start..header_end).ok_or(FrameError::Truncated)?,
+        bytes
+            .get(header_start..header_end)
+            .ok_or(FrameError::Truncated)?,
         FrameError::InvalidHeader,
     )?;
 

src/protocol/mod.rs

@@ -14,8 +14,7 @@ pub use codec::{
     encode_packet,
 };
 pub use introspection::{
-    EndpointIntrospection, INTROSPECTION_PROCEDURE_ID, LeafIntrospection,
-    LeafIntrospectionSummary,
+    EndpointIntrospection, INTROSPECTION_PROCEDURE_ID, LeafIntrospection, LeafIntrospectionSummary,
 };
 pub use types::{
     CallMessage, DataMessage, FaultMessage, HookTarget, PacketHeader, PacketType, ProtocolFault,

src/protocol/tests/protocol.rs

@@ -2,7 +2,7 @@ use alloc::{borrow::ToOwned, string::String, vec, vec::Vec};
 
 use crate::protocol::{
     CallMessage, FaultMessage, FrameError, HookTarget, PacketHeader, PacketType, ProtocolFault,
-    ValidationError, SECTION_ALIGN, decode_frame, encode_packet, validate_call, validate_header,
+    SECTION_ALIGN, ValidationError, decode_frame, encode_packet, validate_call, validate_header,
     validate_procedure_id,
 };
 
@@ -34,7 +34,10 @@ fn packet_framing_roundtrip_preserves_header_and_payload() {
 
     assert_eq!(parsed.header(), &header);
     assert_eq!(parsed.packet_type(), PacketType::Call);
-    assert_eq!(parsed.deserialize_call().expect("call should deserialize"), call);
+    assert_eq!(
+        parsed.deserialize_call().expect("call should deserialize"),
+        call
+    );
 }
 
 #[test]
@@ -99,5 +102,8 @@ fn truncated_frames_are_rejected() {
     let frame = encode_packet(&header, &message).expect("frame should encode");
     let truncated = &frame[..frame.len() - 1];
 
-    assert!(matches!(decode_frame(truncated), Err(FrameError::Truncated)));
+    assert!(matches!(
+        decode_frame(truncated),
+        Err(FrameError::Truncated)
+    ));
 }

src/protocol/tests/tree.rs

@@ -243,7 +243,10 @@ fn pending_hook_fault_is_delivered_before_activation() {
         .expect("pending hook should insert");
 
     let outcome = endpoint
-        .handle_introspection(&header, Some(crate::protocol::tree::HookKey::new(path(&["client"]), 11)))
+        .handle_introspection(
+            &header,
+            Some(crate::protocol::tree::HookKey::new(path(&["client"]), 11)),
+        )
         .expect("introspection should handle pending hook");
 
     assert!(outcome.forward.is_some() || outcome.event.is_some());

src/protocol/tree/endpoint/builders.rs

@@ -167,7 +167,10 @@ impl ProtocolEndpoint {
 
         match self.decide_route(&header.dst_path) {
             RouteDecision::Local => self.handle_local_call(header, call),
-            route => Ok(EndpointOutcome::forward(route, encode_packet(&header, &call)?)),
+            route => Ok(EndpointOutcome::forward(
+                route,
+                encode_packet(&header, &call)?,
+            )),
         }
     }
 
@@ -179,7 +182,8 @@ impl ProtocolEndpoint {
         data: Vec<u8>,
         end_hook: bool,
     ) -> Result<FrameBytes, EndpointError> {
-        let (header, message) = self.prepare_data(dst_path, hook_id, procedure_id, data, end_hook)?;
+        let (header, message) =
+            self.prepare_data(dst_path, hook_id, procedure_id, data, end_hook)?;
         Ok(encode_packet(&header, &message)?)
     }
 
@@ -191,7 +195,8 @@ impl ProtocolEndpoint {
         data: Vec<u8>,
         end_hook: bool,
     ) -> Result<EndpointOutcome, EndpointError> {
-        let (header, message) = self.prepare_data(dst_path, hook_id, procedure_id, data, end_hook)?;
+        let (header, message) =
+            self.prepare_data(dst_path, hook_id, procedure_id, data, end_hook)?;
 
         if end_hook {
             let sender_key = self
@@ -205,7 +210,10 @@ impl ProtocolEndpoint {
 
         match self.decide_route(&header.dst_path) {
             RouteDecision::Local => self.handle_local_data(header, message),
-            route => Ok(EndpointOutcome::forward(route, encode_packet(&header, &message)?)),
+            route => Ok(EndpointOutcome::forward(
+                route,
+                encode_packet(&header, &message)?,
+            )),
         }
     }
 }

src/protocol/tree/endpoint/hooks.rs

@@ -32,8 +32,14 @@ impl ProtocolEndpoint {
         let message = FaultMessage { fault };
 
         match self.decide_route(&key.return_path) {
-            RouteDecision::Local => Ok(EndpointOutcome::event(LocalEvent::Fault { header, message })),
-            route => Ok(EndpointOutcome::forward(route, encode_packet(&header, &message)?)),
+            RouteDecision::Local => Ok(EndpointOutcome::event(LocalEvent::Fault {
+                header,
+                message,
+            })),
+            route => Ok(EndpointOutcome::forward(
+                route,
+                encode_packet(&header, &message)?,
+            )),
         }
     }
 
@@ -87,9 +93,15 @@ impl ProtocolEndpoint {
         message: FaultMessage,
     ) -> Result<EndpointOutcome, EndpointError> {
         let hook_id = header.hook_id.expect("validated");
-        if let Some(key) = self.hooks.resolve_active_key(&self.path, hook_id, &header.src_path) {
+        if let Some(key) = self
+            .hooks
+            .resolve_active_key(&self.path, hook_id, &header.src_path)
+        {
             self.hooks.remove_active(&key);
-            return Ok(EndpointOutcome::event(LocalEvent::Fault { header, message }));
+            return Ok(EndpointOutcome::event(LocalEvent::Fault {
+                header,
+                message,
+            }));
         }
 
         let pending_key = HookKey::new(self.path.clone(), hook_id);
@@ -99,7 +111,10 @@ impl ProtocolEndpoint {
             .is_some_and(|pending| pending.caller_src_path == header.src_path)
         {
             self.hooks.remove_pending(&pending_key);
-            return Ok(EndpointOutcome::event(LocalEvent::Fault { header, message }));
+            return Ok(EndpointOutcome::event(LocalEvent::Fault {
+                header,
+                message,
+            }));
         }
 
         Ok(EndpointOutcome::dropped())

src/protocol/tree/endpoint/introspection.rs

@@ -70,13 +70,16 @@ impl ProtocolEndpoint {
         }
 
         match self.decide_route(&key.return_path) {
-            super::super::RouteDecision::Local => Ok(EndpointOutcome::event(
-                super::core::LocalEvent::Data {
+            super::super::RouteDecision::Local => {
+                Ok(EndpointOutcome::event(super::core::LocalEvent::Data {
                     header: response_header,
                     message: response,
-                },
+                }))
+            }
+            route => Ok(EndpointOutcome::forward(
+                route,
+                encode_packet(&response_header, &response)?,
             )),
-            route => Ok(EndpointOutcome::forward(route, encode_packet(&response_header, &response)?)),
         }
     }
 }

src/protocol/tree/endpoint/receive.rs

@@ -49,7 +49,11 @@ impl ProtocolEndpoint {
             Some(leaf_name) => self
                 .leaves
                 .get(leaf_name)
-                .map(|leaf| leaf.procedures.iter().any(|procedure| procedure == &message.procedure_id))
+                .map(|leaf| {
+                    leaf.procedures
+                        .iter()
+                        .any(|procedure| procedure == &message.procedure_id)
+                })
                 .unwrap_or(false),
             None => self.endpoint_procedures.contains(&message.procedure_id),
         };
@@ -105,12 +109,15 @@ impl Endpoint for ProtocolEndpoint {
                     RouteDecision::Child(index) => {
                         Ok(EndpointOutcome::forward(RouteDecision::Child(index), frame))
                     }
-                    RouteDecision::Parent => Ok(EndpointOutcome::forward(RouteDecision::Parent, frame)),
+                    RouteDecision::Parent => {
+                        Ok(EndpointOutcome::forward(RouteDecision::Parent, frame))
+                    }
                     RouteDecision::Drop => Ok(EndpointOutcome::dropped()),
                     RouteDecision::Local => {
                         let (header, payload) = parsed.into_parts();
-                        let message =
-                            deserialize_archived_bytes::<ArchivedCallMessage, CallMessage>(payload)?;
+                        let message = deserialize_archived_bytes::<ArchivedCallMessage, CallMessage>(
+                            payload,
+                        )?;
                         validate_call(&header, &message)?;
                         self.handle_local_call(header, message)
                     }

src/protocol/tree/routing.rs

@@ -5,7 +5,9 @@ use alloc::{collections::BTreeMap, string::String, vec, vec::Vec};
 /// Explicit test tree declaration used for configuration.
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum TreeNode {
-    Root { children: Vec<Self> },
+    Root {
+        children: Vec<Self>,
+    },
     Endpoint {
         segment: String,
         leaves: Vec<LeafNode>,