Merge #5699

5699: Fix clippy warnings r=matklad a=popzxc

Currently clippy spawns a bunch of warnings on the `rust-analyzer` project. Nothing critical, but easy to fix, so I guess it won't harm.

Co-authored-by: Igor Aleksanov <popzxc@yandex.ru>

crates/expect/src/lib.rs

@@ -74,7 +74,7 @@ impl fmt::Display for Position {
 impl Expect {
     pub fn assert_eq(&self, actual: &str) {
         let trimmed = self.trimmed();
-        if &trimmed == actual {
+        if trimmed == actual {
             return;
         }
         Runtime::fail_expect(self, &trimmed, actual);

crates/ra_mbe/src/mbe_expander/matcher.rs

@@ -276,7 +276,7 @@ impl<'a> TtIter<'a> {
         Ok(tt::Subtree {
             delimiter: None,
             token_trees: vec![
-                tt::Leaf::Punct(punct.clone()).into(),
+                tt::Leaf::Punct(*punct).into(),
                 tt::Leaf::Ident(ident.clone()).into(),
             ],
         }

crates/ra_proc_macro/src/process.rs

@@ -90,7 +90,7 @@ impl ProcMacroProcessSrv {
             }
             Some(it) => it,
         };
-        sender.send(Task { req: req.into(), result_tx }).unwrap();
+        sender.send(Task { req, result_tx }).unwrap();
         let res = result_rx
             .recv()
             .map_err(|_| ra_tt::ExpansionError::Unknown("Proc macro thread is closed.".into()))?;

crates/ra_text_edit/src/lib.rs

@@ -76,10 +76,6 @@ impl TextEdit {
         self.indels.iter()
     }
 
-    pub fn into_iter(self) -> vec::IntoIter<Indel> {
-        self.indels.into_iter()
-    }
-
     pub fn apply(&self, text: &mut String) {
         match self.len() {
             0 => return,
@@ -141,6 +137,15 @@ impl TextEdit {
     }
 }
 
+impl IntoIterator for TextEdit {
+    type Item = Indel;
+    type IntoIter = vec::IntoIter<Self::Item>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.indels.into_iter()
+    }
+}
+
 impl TextEditBuilder {
     pub fn replace(&mut self, range: TextRange, replace_with: String) {
         self.indels.push(Indel::replace(range, replace_with))

crates/ra_tt/src/lib.rs

@@ -107,7 +107,7 @@ fn print_debug_subtree(f: &mut fmt::Formatter<'_>, subtree: &Subtree, level: usi
         for (idx, child) in subtree.token_trees.iter().enumerate() {
             print_debug_token(f, child, level + 1)?;
             if idx != subtree.token_trees.len() - 1 {
-                writeln!(f, "")?;
+                writeln!(f)?;
             }
         }
     }

crates/stdx/src/lib.rs

@@ -10,7 +10,7 @@ pub fn is_ci() -> bool {
 
 pub trait SepBy: Sized {
     /// Returns an `impl fmt::Display`, which joins elements via a separator.
-    fn sep_by<'a>(self, sep: &'a str) -> SepByBuilder<'a, Self>;
+    fn sep_by(self, sep: &str) -> SepByBuilder<'_, Self>;
 }
 
 impl<I> SepBy for I
@@ -18,7 +18,7 @@ where
     I: Iterator,
     I::Item: fmt::Display,
 {
-    fn sep_by<'a>(self, sep: &'a str) -> SepByBuilder<'a, Self> {
+    fn sep_by(self, sep: &str) -> SepByBuilder<'_, Self> {
         SepByBuilder::new(sep, self)
     }
 }