chore: address clippy warnings

actix-router/src/de.rs

@@ -511,11 +511,6 @@ mod tests {
         value: String,
     }
 
-    #[derive(Deserialize)]
-    struct Id {
-        _id: String,
-    }
-
     #[derive(Debug, Deserialize)]
     struct Test1(String, u32);
 

actix-web/benches/responder.rs

@@ -2,11 +2,9 @@ use std::{future::Future, time::Instant};
 
 use actix_http::body::BoxBody;
 use actix_utils::future::{ready, Ready};
-use actix_web::{
-    error, http::StatusCode, test::TestRequest, Error, HttpRequest, HttpResponse, Responder,
-};
+use actix_web::{http::StatusCode, test::TestRequest, Error, HttpRequest, HttpResponse, Responder};
 use criterion::{criterion_group, criterion_main, Criterion};
-use futures_util::future::{join_all, Either};
+use futures_util::future::join_all;
 
 // responder simulate the old responder trait.
 trait FutureResponder {
@@ -16,9 +14,6 @@ trait FutureResponder {
     fn future_respond_to(self, req: &HttpRequest) -> Self::Future;
 }
 
-// a simple option responder type.
-struct OptionResponder<T>(Option<T>);
-
 // a simple wrapper type around string
 struct StringResponder(String);
 
@@ -34,22 +29,6 @@ impl FutureResponder for StringResponder {
     }
 }
 
-impl<T> FutureResponder for OptionResponder<T>
-where
-    T: FutureResponder,
-    T::Future: Future<Output = Result<HttpResponse, Error>>,
-{
-    type Error = Error;
-    type Future = Either<T::Future, Ready<Result<HttpResponse, Self::Error>>>;
-
-    fn future_respond_to(self, req: &HttpRequest) -> Self::Future {
-        match self.0 {
-            Some(t) => Either::Left(t.future_respond_to(req)),
-            None => Either::Right(ready(Err(error::ErrorInternalServerError("err")))),
-        }
-    }
-}
-
 impl Responder for StringResponder {
     type Body = BoxBody;
 
@@ -60,17 +39,6 @@ impl Responder for StringResponder {
     }
 }
 
-impl<T: Responder> Responder for OptionResponder<T> {
-    type Body = BoxBody;
-
-    fn respond_to(self, req: &HttpRequest) -> HttpResponse<Self::Body> {
-        match self.0 {
-            Some(t) => t.respond_to(req).map_into_boxed_body(),
-            None => HttpResponse::from_error(error::ErrorInternalServerError("err")),
-        }
-    }
-}
-
 fn future_responder(c: &mut Criterion) {
     let rt = actix_rt::System::new();
     let req = TestRequest::default().to_http_request();

actix-web/src/handler.rs

@@ -19,7 +19,7 @@ use crate::{
 /// 1. It is an async function (or a function/closure that returns an appropriate future);
 /// 1. The function parameters (up to 12) implement [`FromRequest`];
 /// 1. The async function (or future) resolves to a type that can be converted into an
-///   [`HttpResponse`] (i.e., it implements the [`Responder`] trait).
+///    [`HttpResponse`] (i.e., it implements the [`Responder`] trait).
 ///
 ///
 /// # Compiler Errors

actix-web/src/http/header/content_disposition.rs

@@ -493,7 +493,7 @@ impl Header for ContentDisposition {
     }
 
     fn parse<T: crate::HttpMessage>(msg: &T) -> Result<Self, crate::error::ParseError> {
-        if let Some(h) = msg.headers().get(&Self::name()) {
+        if let Some(h) = msg.headers().get(Self::name()) {
             Self::from_raw(h)
         } else {
             Err(crate::error::ParseError::Header)

actix-web/src/http/header/range.rs

@@ -107,16 +107,16 @@ impl ByteRangeSpec {
     /// satisfiable if they meet the following conditions:
     ///
     /// > If a valid byte-range-set includes at least one byte-range-spec with a first-byte-pos that
-    /// is less than the current length of the representation, or at least one
-    /// suffix-byte-range-spec with a non-zero suffix-length, then the byte-range-set
-    /// is satisfiable. Otherwise, the byte-range-set is unsatisfiable.
+    /// > is less than the current length of the representation, or at least one
+    /// > suffix-byte-range-spec with a non-zero suffix-length, then the byte-range-set is
+    /// > satisfiable. Otherwise, the byte-range-set is unsatisfiable.
     ///
     /// The function also computes remainder ranges based on the RFC:
     ///
     /// > If the last-byte-pos value is absent, or if the value is greater than or equal to the
-    /// current length of the representation data, the byte range is interpreted as the remainder
-    /// of the representation (i.e., the server replaces the value of last-byte-pos with a value
-    /// that is one less than the current length of the selected representation).
+    /// > current length of the representation data, the byte range is interpreted as the remainder
+    /// > of the representation (i.e., the server replaces the value of last-byte-pos with a value
+    /// > that is one less than the current length of the selected representation).
     ///
     /// [RFC 7233 §2.1]: https://datatracker.ietf.org/doc/html/rfc7233
     pub fn to_satisfiable_range(&self, full_length: u64) -> Option<(u64, u64)> {
@@ -270,7 +270,7 @@ impl Header for Range {
 
     #[inline]
     fn parse<T: HttpMessage>(msg: &T) -> Result<Self, ParseError> {
-        header::from_one_raw_str(msg.headers().get(&Self::name()))
+        header::from_one_raw_str(msg.headers().get(Self::name()))
     }
 }
 

actix-web/src/middleware/logger.rs

@@ -622,11 +622,7 @@ impl FormatText {
 
             FormatText::ResponseHeader(ref name) => {
                 let s = if let Some(val) = res.headers().get(name) {
-                    if let Ok(s) = val.to_str() {
-                        s
-                    } else {
-                        "-"
-                    }
+                    val.to_str().unwrap_or("-")
                 } else {
                     "-"
                 };
@@ -670,11 +666,7 @@ impl FormatText {
             FormatText::RequestTime => *self = FormatText::Str(now.format(&Rfc3339).unwrap()),
             FormatText::RequestHeader(ref name) => {
                 let s = if let Some(val) = req.headers().get(name) {
-                    if let Ok(s) = val.to_str() {
-                        s
-                    } else {
-                        "-"
-                    }
+                    val.to_str().unwrap_or("-")
                 } else {
                     "-"
                 };

actix-web/src/response/builder.rs

@@ -463,7 +463,7 @@ mod tests {
         // content type override
         let res = HttpResponse::Ok()
             .insert_header((CONTENT_TYPE, "text/json"))
-            .json(&vec!["v1", "v2", "v3"]);
+            .json(["v1", "v2", "v3"]);
         let ct = res.headers().get(CONTENT_TYPE).unwrap();
         assert_eq!(ct, HeaderValue::from_static("text/json"));
         assert_body_eq!(res, br#"["v1","v2","v3"]"#);