chore: Fix clippy lint (#1181)

examples/src/blocking/server.rs

@@ -21,7 +21,7 @@ impl Greeter for MyGreeter {
         println!("Got a request: {:?}", request);
 
         let reply = hello_world::HelloReply {
-            message: format!("Hello {}!", request.into_inner().name).into(),
+            message: format!("Hello {}!", request.into_inner().name),
         };
 
         Ok(Response::new(reply))

interop/src/lib.rs

@@ -113,7 +113,7 @@ impl fmt::Display for TestAssertion {
 macro_rules! test_assert {
     ($description:expr, $assertion:expr) => {
         if $assertion {
-            crate::TestAssertion::Passed {
+            $crate::TestAssertion::Passed {
                 description: $description,
             }
         } else {
@@ -126,11 +126,11 @@ macro_rules! test_assert {
     };
     ($description:expr, $assertion:expr, $why:expr) => {
         if $assertion {
-            crate::TestAssertion::Passed {
+            $crate::TestAssertion::Passed {
                 description: $description,
             }
         } else {
-            crate::TestAssertion::Failed {
+            $crate::TestAssertion::Failed {
                 description: $description,
                 expression: stringify!($assertion),
                 why: Some($why),

tests/disable_comments/Cargo.toml

@@ -13,5 +13,5 @@ prost = "0.11"
 tonic = { path = "../../tonic" }
 
 [build-dependencies]
-prost-build = "0.11"
+prost-build = "0.11.4"
 tonic-build = { path = "../../tonic-build" }

tests/disable_comments/build.rs

@@ -1,6 +1,6 @@
 fn main() {
     let mut config = prost_build::Config::default();
-    config.disable_comments(&["test.Input1", "test.Output1"]);
+    config.disable_comments(["test.Input1", "test.Output1"]);
     tonic_build::configure()
         .disable_comments("test.Service1")
         .disable_comments("test.Service1.Rpc1")

tests/extern_path/uuid/Cargo.toml

@@ -12,4 +12,4 @@ version = "0.1.0"
 bytes = "1.0"
 prost = "0.11"
 [build-dependencies]
-prost-build = "0.11"
+prost-build = "0.11.4"

tests/integration_tests/tests/streams.rs

@@ -17,7 +17,7 @@ async fn status_from_server_stream_with_source() {
             &self,
             _: Request<InputStream>,
         ) -> Result<Response<Self::StreamCallStream>, Status> {
-            let s = Unsync(0 as *mut ());
+            let s = Unsync(std::ptr::null_mut::<()>());
 
             Ok(Response::new(Box::pin(s) as Self::StreamCallStream))
         }

tests/root-crate-path/src/main.rs

@@ -1,3 +1,4 @@
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct Animal {
     #[prost(string, optional, tag = "1")]

tests/wellknown-compiled/Cargo.toml

@@ -16,5 +16,5 @@ prost = "0.11"
 tonic = {path = "../../tonic"}
 
 [build-dependencies]
-prost-build = "0.11"
+prost-build = "0.11.4"
 tonic-build = {path = "../../tonic-build"}

tonic-build/Cargo.toml

@@ -17,7 +17,7 @@ version = "0.8.4"
 [dependencies]
 prettyplease = { version = "0.1" }
 proc-macro2 = "1.0"
-prost-build = { version = "0.11.2", optional = true }
+prost-build = { version = "0.11.4", optional = true }
 quote = "1.0"
 syn = "1.0"
 

tonic-health/src/generated/grpc.health.v1.rs

@@ -1,8 +1,10 @@
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct HealthCheckRequest {
     #[prost(string, tag = "1")]
     pub service: ::prost::alloc::string::String,
 }
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct HealthCheckResponse {
     #[prost(enumeration = "health_check_response::ServingStatus", tag = "1")]

tonic-health/src/lib.rs

@@ -36,7 +36,7 @@ pub mod proto {
 pub mod server;
 
 /// An enumeration of values representing gRPC service health.
-#[derive(Copy, Clone, Debug, PartialEq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum ServingStatus {
     /// Unknown status
     Unknown,

tonic-reflection/Cargo.toml

@@ -27,6 +27,6 @@ tonic = { version = "0.8", path = "../tonic", default-features = false, features
 
 [dev-dependencies]
 tonic = { version = "0.8", path = "../tonic", default-features = false, features = ["transport"] }
-tonic-build = { version = "0.8", path = "../tonic-build", default-features = false, features = ["prost"] }
+tonic-build = { version = "0.8", path = "../tonic-build", default-features = false, features = ["prost", "cleanup-markdown"] }
 futures = "0.3"
 futures-util = "0.3"

tonic-reflection/src/generated/grpc.reflection.v1alpha.rs

@@ -1,4 +1,5 @@
 /// The message sent by the client when calling ServerReflectionInfo method.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ServerReflectionRequest {
     #[prost(string, tag = "1")]
@@ -16,6 +17,7 @@ pub mod server_reflection_request {
     /// To use reflection service, the client should set one of the following
     /// fields in message_request. The server distinguishes requests by their
     /// defined field and then handles them using corresponding methods.
+    #[allow(clippy::derive_partial_eq_without_eq)]
     #[derive(Clone, PartialEq, ::prost::Oneof)]
     pub enum MessageRequest {
         /// Find a proto file by the file name.
@@ -48,6 +50,7 @@ pub mod server_reflection_request {
 }
 /// The type name and extension number sent by the client when requesting
 /// file_containing_extension.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ExtensionRequest {
     /// Fully-qualified type name. The format should be <package>.<type>
@@ -57,6 +60,7 @@ pub struct ExtensionRequest {
     pub extension_number: i32,
 }
 /// The message sent by the server to answer ServerReflectionInfo method.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ServerReflectionResponse {
     #[prost(string, tag = "1")]
@@ -74,6 +78,7 @@ pub struct ServerReflectionResponse {
 pub mod server_reflection_response {
     /// The server sets one of the following fields according to the
     /// message_request in the request.
+    #[allow(clippy::derive_partial_eq_without_eq)]
     #[derive(Clone, PartialEq, ::prost::Oneof)]
     pub enum MessageResponse {
         /// This message is used to answer file_by_filename, file_containing_symbol,
@@ -98,6 +103,7 @@ pub mod server_reflection_response {
 /// Serialized FileDescriptorProto messages sent by the server answering
 /// a file_by_filename, file_containing_symbol, or file_containing_extension
 /// request.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct FileDescriptorResponse {
     /// Serialized FileDescriptorProto messages. We avoid taking a dependency on
@@ -108,6 +114,7 @@ pub struct FileDescriptorResponse {
 }
 /// A list of extension numbers sent by the server answering
 /// all_extension_numbers_of_type request.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ExtensionNumberResponse {
     /// Full name of the base type, including the package name. The format
@@ -118,6 +125,7 @@ pub struct ExtensionNumberResponse {
     pub extension_number: ::prost::alloc::vec::Vec<i32>,
 }
 /// A list of ServiceResponse sent by the server answering list_services request.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ListServiceResponse {
     /// The information of each service may be expanded in the future, so we use
@@ -127,6 +135,7 @@ pub struct ListServiceResponse {
 }
 /// The information of a single service used by ListServiceResponse to answer
 /// list_services request.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ServiceResponse {
     /// Full name of a registered service, including its package name. The format
@@ -135,6 +144,7 @@ pub struct ServiceResponse {
     pub name: ::prost::alloc::string::String,
 }
 /// The error code and error message sent by the server when an error occurs.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ErrorResponse {
     /// This field uses the error codes defined in grpc::StatusCode.

tonic-types/src/generated/google.rpc.rs

@@ -5,6 +5,7 @@
 ///
 /// You can find out more about this error model and how to work with it in the
 /// [API Design Guide](<https://cloud.google.com/apis/design/errors>).
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct Status {
     /// The status code, which should be an enum value of \\[google.rpc.Code\]\[google.rpc.Code\\].
@@ -33,6 +34,7 @@ pub struct Status {
 /// the delay between retries based on `retry_delay`, until either a maximum
 /// number of retries have been reached or a maximum retry delay cap has been
 /// reached.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct RetryInfo {
     /// Clients should wait at least this long between retrying the same request.
@@ -40,6 +42,7 @@ pub struct RetryInfo {
     pub retry_delay: ::core::option::Option<::prost_types::Duration>,
 }
 /// Describes additional debugging info.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct DebugInfo {
     /// The stack trace entries indicating where the error occurred.
@@ -60,6 +63,7 @@ pub struct DebugInfo {
 ///
 /// Also see RetryInfo and Help types for other details about handling a
 /// quota failure.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct QuotaFailure {
     /// Describes all quota violations.
@@ -70,6 +74,7 @@ pub struct QuotaFailure {
 pub mod quota_failure {
     /// A message type used to describe a single quota violation.  For example, a
     /// daily quota or a custom quota that was exceeded.
+    #[allow(clippy::derive_partial_eq_without_eq)]
     #[derive(Clone, PartialEq, ::prost::Message)]
     pub struct Violation {
         /// The subject on which the quota check failed.
@@ -116,6 +121,7 @@ pub mod quota_failure {
 ///       }
 ///     }
 /// ```
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ErrorInfo {
     /// The reason of the error. This is a constant value that identifies the
@@ -151,6 +157,7 @@ pub struct ErrorInfo {
 /// For example, if an RPC failed because it required the Terms of Service to be
 /// acknowledged, it could list the terms of service violation in the
 /// PreconditionFailure message.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct PreconditionFailure {
     /// Describes all precondition violations.
@@ -160,6 +167,7 @@ pub struct PreconditionFailure {
 /// Nested message and enum types in `PreconditionFailure`.
 pub mod precondition_failure {
     /// A message type used to describe a single precondition failure.
+    #[allow(clippy::derive_partial_eq_without_eq)]
     #[derive(Clone, PartialEq, ::prost::Message)]
     pub struct Violation {
         /// The type of PreconditionFailure. We recommend using a service-specific
@@ -182,6 +190,7 @@ pub mod precondition_failure {
 }
 /// Describes violations in a client request. This error type focuses on the
 /// syntactic aspects of the request.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct BadRequest {
     /// Describes all violations in a client request.
@@ -191,6 +200,7 @@ pub struct BadRequest {
 /// Nested message and enum types in `BadRequest`.
 pub mod bad_request {
     /// A message type used to describe a single bad request field.
+    #[allow(clippy::derive_partial_eq_without_eq)]
     #[derive(Clone, PartialEq, ::prost::Message)]
     pub struct FieldViolation {
         /// A path leading to a field in the request body. The value will be a
@@ -205,6 +215,7 @@ pub mod bad_request {
 }
 /// Contains metadata about the request that clients can attach when filing a bug
 /// or providing other forms of feedback.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct RequestInfo {
     /// An opaque string that should only be interpreted by the service generating
@@ -217,6 +228,7 @@ pub struct RequestInfo {
     pub serving_data: ::prost::alloc::string::String,
 }
 /// Describes the resource that is being accessed.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ResourceInfo {
     /// A name for the type of resource being accessed, e.g. "sql table",
@@ -245,6 +257,7 @@ pub struct ResourceInfo {
 /// For example, if a quota check failed with an error indicating the calling
 /// project hasn't enabled the accessed service, this can contain a URL pointing
 /// directly to the right place in the developer console to flip the bit.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct Help {
     /// URL(s) pointing to additional information on handling the current error.
@@ -254,6 +267,7 @@ pub struct Help {
 /// Nested message and enum types in `Help`.
 pub mod help {
     /// Describes a URL link.
+    #[allow(clippy::derive_partial_eq_without_eq)]
     #[derive(Clone, PartialEq, ::prost::Message)]
     pub struct Link {
         /// Describes what the link offers.
@@ -266,6 +280,7 @@ pub mod help {
 }
 /// Provides a localized error message that is safe to return to the user
 /// which can be attached to an RPC error.
+#[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct LocalizedMessage {
     /// The locale used following the specification defined at

tonic-types/src/richer_error/error_details/mod.rs

@@ -247,3 +247,9 @@ impl ErrorDetails {
         false
     }
 }
+
+impl Default for ErrorDetails {
+    fn default() -> Self {
+        Self::new()
+    }
+}

tonic-types/src/richer_error/mod.rs

@@ -20,10 +20,10 @@ trait FromAny {
         Self: Sized;
 }
 
-fn gen_details_bytes(code: Code, message: &String, details: Vec<Any>) -> Bytes {
+fn gen_details_bytes(code: Code, message: &str, details: Vec<Any>) -> Bytes {
     let status = pb::Status {
         code: code as i32,
-        message: message.clone(),
+        message: message.to_owned(),
         details,
     };
 
@@ -411,7 +411,7 @@ impl StatusExt for tonic::Status {
     }
 
     fn get_error_details(&self) -> ErrorDetails {
-        self.check_error_details().unwrap_or(ErrorDetails::new())
+        self.check_error_details().unwrap_or_default()
     }
 
     fn check_error_details_vec(&self) -> Result<Vec<ErrorDetail>, DecodeError> {
@@ -438,19 +438,17 @@ impl StatusExt for tonic::Status {
     }
 
     fn get_error_details_vec(&self) -> Vec<ErrorDetail> {
-        self.check_error_details_vec().unwrap_or(Vec::new())
+        self.check_error_details_vec().unwrap_or_default()
     }
 
     fn get_details_retry_info(&self) -> Option<RetryInfo> {
         let status = pb::Status::decode(self.details()).ok()?;
 
         for any in status.details.into_iter() {
-            match any.type_url.as_str() {
+            if any.type_url.as_str() == RetryInfo::TYPE_URL {
-                RetryInfo::TYPE_URL => match RetryInfo::from_any(any) {
+                if let Ok(detail) = RetryInfo::from_any(any) {
-                    Ok(detail) => return Some(detail),
+                    return Some(detail);
-                    Err(_) => {}
+                }
-                },
-                _ => {}
             }
         }
 
@@ -477,12 +475,10 @@ impl StatusExt for tonic::Status {
         let status = pb::Status::decode(self.details()).ok()?;
 
         for any in status.details.into_iter() {
-            match any.type_url.as_str() {
+            if any.type_url.as_str() == BadRequest::TYPE_URL {
-                BadRequest::TYPE_URL => match BadRequest::from_any(any) {
+                if let Ok(detail) = BadRequest::from_any(any) {
-                    Ok(detail) => return Some(detail),
+                    return Some(detail);
-                    Err(_) => {}
+                }
-                },
-                _ => {}
             }
         }
 

tonic-types/src/richer_error/std_messages/bad_request.rs

@@ -153,7 +153,7 @@ mod tests {
         );
 
         assert!(
-            br_details.is_empty() == false,
+            !br_details.is_empty(),
             "filled BadRequest returns 'true' from .is_empty()"
         );
 

tonic-types/src/richer_error/std_messages/retry_info.rs

@@ -119,7 +119,7 @@ mod tests {
         );
 
         assert!(
-            error_info.is_empty() == false,
+            !error_info.is_empty(),
             "filled RetryInfo returns 'false' from .has_retry_delay()"
         );
 

tonic-web/src/layer.rs

@@ -16,6 +16,12 @@ impl GrpcWebLayer {
     }
 }
 
+impl Default for GrpcWebLayer {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl<S> Layer<S> for GrpcWebLayer
 where
     S: Service<http::Request<hyper::Body>, Response = http::Response<BoxBody>>,

tonic/src/metadata/key.rs

@@ -247,7 +247,7 @@ impl<VE: ValueEncoding> PartialEq<MetadataKey<VE>> for str {
     /// ```
     #[inline]
     fn eq(&self, other: &MetadataKey<VE>) -> bool {
-        (*other).inner == *self
+        other.inner == *self
     }
 }
 

tonic/src/metadata/map.rs

@@ -1362,7 +1362,7 @@ where
         match self.inner {
             Some(ref mut inner) => inner
                 .next()
-                .map(&MetadataValue::unchecked_from_header_value_ref),
+                .map(MetadataValue::unchecked_from_header_value_ref),
             None => None,
         }
     }
@@ -1383,7 +1383,7 @@ where
         match self.inner {
             Some(ref mut inner) => inner
                 .next_back()
-                .map(&MetadataValue::unchecked_from_header_value_ref),
+                .map(MetadataValue::unchecked_from_header_value_ref),
             None => None,
         }
     }
@@ -1400,7 +1400,7 @@ where
     fn next(&mut self) -> Option<Self::Item> {
         self.inner
             .next()
-            .map(&MetadataValue::unchecked_from_mut_header_value_ref)
+            .map(MetadataValue::unchecked_from_mut_header_value_ref)
     }
 }
 
@@ -1411,7 +1411,7 @@ where
     fn next_back(&mut self) -> Option<Self::Item> {
         self.inner
             .next_back()
-            .map(&MetadataValue::unchecked_from_mut_header_value_ref)
+            .map(MetadataValue::unchecked_from_mut_header_value_ref)
     }
 }
 
@@ -1992,7 +1992,7 @@ impl<'a, 'b: 'a, VE: ValueEncoding> IntoIterator for &'b GetAll<'a, VE> {
 
     fn into_iter(self) -> ValueIter<'a, VE> {
         ValueIter {
-            inner: (&self.inner).as_ref().map(|inner| inner.into_iter()),
+            inner: self.inner.as_ref().map(|inner| inner.into_iter()),
             phantom: PhantomData,
         }
     }
@@ -2037,7 +2037,7 @@ mod into_metadata_key {
         ) -> Option<MetadataValue<VE>> {
             map.headers
                 .insert(self.inner, val.inner)
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
 
         #[doc(hidden)]
@@ -2059,7 +2059,7 @@ mod into_metadata_key {
         ) -> Option<MetadataValue<VE>> {
             map.headers
                 .insert(&self.inner, val.inner)
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
         #[doc(hidden)]
         #[inline]
@@ -2083,7 +2083,7 @@ mod into_metadata_key {
 
             map.headers
                 .insert(key.inner, val.inner)
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
         #[doc(hidden)]
         #[inline]
@@ -2141,7 +2141,7 @@ mod as_metadata_key {
         fn get(self, map: &MetadataMap) -> Option<&MetadataValue<VE>> {
             map.headers
                 .get(self.inner)
-                .map(&MetadataValue::unchecked_from_header_value_ref)
+                .map(MetadataValue::unchecked_from_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2149,7 +2149,7 @@ mod as_metadata_key {
         fn get_mut(self, map: &mut MetadataMap) -> Option<&mut MetadataValue<VE>> {
             map.headers
                 .get_mut(self.inner)
-                .map(&MetadataValue::unchecked_from_mut_header_value_ref)
+                .map(MetadataValue::unchecked_from_mut_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2172,7 +2172,7 @@ mod as_metadata_key {
         fn remove(self, map: &mut MetadataMap) -> Option<MetadataValue<VE>> {
             map.headers
                 .remove(self.inner)
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
     }
 
@@ -2184,7 +2184,7 @@ mod as_metadata_key {
         fn get(self, map: &MetadataMap) -> Option<&MetadataValue<VE>> {
             map.headers
                 .get(&self.inner)
-                .map(&MetadataValue::unchecked_from_header_value_ref)
+                .map(MetadataValue::unchecked_from_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2192,7 +2192,7 @@ mod as_metadata_key {
         fn get_mut(self, map: &mut MetadataMap) -> Option<&mut MetadataValue<VE>> {
             map.headers
                 .get_mut(&self.inner)
-                .map(&MetadataValue::unchecked_from_mut_header_value_ref)
+                .map(MetadataValue::unchecked_from_mut_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2215,7 +2215,7 @@ mod as_metadata_key {
         fn remove(self, map: &mut MetadataMap) -> Option<MetadataValue<VE>> {
             map.headers
                 .remove(&self.inner)
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
     }
 
@@ -2230,7 +2230,7 @@ mod as_metadata_key {
             }
             map.headers
                 .get(self)
-                .map(&MetadataValue::unchecked_from_header_value_ref)
+                .map(MetadataValue::unchecked_from_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2241,7 +2241,7 @@ mod as_metadata_key {
             }
             map.headers
                 .get_mut(self)
-                .map(&MetadataValue::unchecked_from_mut_header_value_ref)
+                .map(MetadataValue::unchecked_from_mut_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2277,7 +2277,7 @@ mod as_metadata_key {
             }
             map.headers
                 .remove(self)
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
     }
 
@@ -2292,7 +2292,7 @@ mod as_metadata_key {
             }
             map.headers
                 .get(self.as_str())
-                .map(&MetadataValue::unchecked_from_header_value_ref)
+                .map(MetadataValue::unchecked_from_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2303,7 +2303,7 @@ mod as_metadata_key {
             }
             map.headers
                 .get_mut(self.as_str())
-                .map(&MetadataValue::unchecked_from_mut_header_value_ref)
+                .map(MetadataValue::unchecked_from_mut_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2338,7 +2338,7 @@ mod as_metadata_key {
             }
             map.headers
                 .remove(self.as_str())
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
     }
 
@@ -2353,7 +2353,7 @@ mod as_metadata_key {
             }
             map.headers
                 .get(self.as_str())
-                .map(&MetadataValue::unchecked_from_header_value_ref)
+                .map(MetadataValue::unchecked_from_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2364,7 +2364,7 @@ mod as_metadata_key {
             }
             map.headers
                 .get_mut(self.as_str())
-                .map(&MetadataValue::unchecked_from_mut_header_value_ref)
+                .map(MetadataValue::unchecked_from_mut_header_value_ref)
         }
 
         #[doc(hidden)]
@@ -2399,7 +2399,7 @@ mod as_metadata_key {
             }
             map.headers
                 .remove(self.as_str())
-                .map(&MetadataValue::unchecked_from_header_value)
+                .map(MetadataValue::unchecked_from_header_value)
         }
     }
 
@@ -2520,7 +2520,7 @@ mod tests {
 
         let mut found_x_word = false;
         for key_and_value in map.iter() {
-            if let KeyAndValueRef::Ascii(ref key, ref _value) = key_and_value {
+            if let KeyAndValueRef::Ascii(key, _value) = key_and_value {
                 if key.as_str() == "x-word" {
                     found_x_word = true;
                 } else {
@@ -2540,7 +2540,7 @@ mod tests {
 
         let mut found_x_word_bin = false;
         for key_and_value in map.iter() {
-            if let KeyAndValueRef::Binary(ref key, ref _value) = key_and_value {
+            if let KeyAndValueRef::Binary(key, _value) = key_and_value {
                 if key.as_str() == "x-word-bin" {
                     found_x_word_bin = true;
                 } else {
@@ -2561,7 +2561,7 @@ mod tests {
 
         let mut found_x_word = false;
         for key_and_value in map.iter_mut() {
-            if let KeyAndMutValueRef::Ascii(ref key, ref _value) = key_and_value {
+            if let KeyAndMutValueRef::Ascii(key, _value) = key_and_value {
                 if key.as_str() == "x-word" {
                     found_x_word = true;
                 } else {
@@ -2581,7 +2581,7 @@ mod tests {
 
         let mut found_x_word_bin = false;
         for key_and_value in map.iter_mut() {
-            if let KeyAndMutValueRef::Binary(ref key, ref _value) = key_and_value {
+            if let KeyAndMutValueRef::Binary(key, _value) = key_and_value {
                 if key.as_str() == "x-word-bin" {
                     found_x_word_bin = true;
                 } else {

tonic/src/service/interceptor.rs

@@ -349,7 +349,7 @@ mod tests {
             Ok::<_, hyper::Error>(hyper::Response::new(hyper::Body::empty()))
         });
 
-        let svc = InterceptedService::new(svc, |request: crate::Request<()>| Ok(request));
+        let svc = InterceptedService::new(svc, Ok);
 
         let request = http::Request::builder()
             .method(http::Method::OPTIONS)

tonic/src/transport/service/io.rs

@@ -70,7 +70,7 @@ impl AsyncWrite for BoxedIo {
 pub(crate) enum ServerIo<IO> {
     Io(IO),
     #[cfg(feature = "tls")]
-    TlsIo(TlsStream<IO>),
+    TlsIo(Box<TlsStream<IO>>),
 }
 
 use tower::util::Either;
@@ -89,7 +89,7 @@ impl<IO> ServerIo<IO> {
 
     #[cfg(feature = "tls")]
     pub(in crate::transport) fn new_tls_io(io: TlsStream<IO>) -> Self {
-        Self::TlsIo(io)
+        Self::TlsIo(Box::new(io))
     }
 
     #[cfg(feature = "tls")]