9 files changed, 36 insertions, 36 deletions

diff --git a/crates/hir_def/src/body/lower.rs b/crates/hir_def/src/body/lower.rs
index da1fdac33..a8bd36a0a 100644
--- a/crates/hir_def/src/body/lower.rs
+++ b/crates/hir_def/src/body/lower.rs
@@ -1002,16 +1002,16 @@ impl From<ast::LiteralKind> for Literal {
                 if let builtin @ Some(_) = lit.suffix().and_then(BuiltinFloat::from_suffix) {
                     return Literal::Float(Default::default(), builtin);
                 } else if let builtin @ Some(_) =
-                    lit.suffix().and_then(|it| BuiltinInt::from_suffix(&it))
+                    lit.suffix().and_then(|it| BuiltinInt::from_suffix(it))
                 {
                     Literal::Int(lit.value().unwrap_or(0) as i128, builtin)
                 } else {
-                    let builtin = lit.suffix().and_then(|it| BuiltinUint::from_suffix(&it));
+                    let builtin = lit.suffix().and_then(|it| BuiltinUint::from_suffix(it));
                     Literal::Uint(lit.value().unwrap_or(0), builtin)
                 }
             }
             LiteralKind::FloatNumber(lit) => {
-                let ty = lit.suffix().and_then(|it| BuiltinFloat::from_suffix(&it));
+                let ty = lit.suffix().and_then(|it| BuiltinFloat::from_suffix(it));
                 Literal::Float(Default::default(), ty)
             }
             LiteralKind::ByteString(bs) => {
diff --git a/crates/hir_def/src/body/scope.rs b/crates/hir_def/src/body/scope.rs
index 6764de3a7..58a1fc81c 100644
--- a/crates/hir_def/src/body/scope.rs
+++ b/crates/hir_def/src/body/scope.rs
@@ -198,7 +198,7 @@ fn compute_expr_scopes(expr: ExprId, body: &Body, scopes: &mut ExprScopes, scope
         }
         Expr::Lambda { args, body: body_expr, .. } => {
             let scope = scopes.new_scope(scope);
-            scopes.add_params_bindings(body, scope, &args);
+            scopes.add_params_bindings(body, scope, args);
             compute_expr_scopes(*body_expr, body, scopes, scope);
         }
         Expr::Match { expr, arms } => {
diff --git a/crates/hir_def/src/generics.rs b/crates/hir_def/src/generics.rs
index 44d22b918..6933f6e3c 100644
--- a/crates/hir_def/src/generics.rs
+++ b/crates/hir_def/src/generics.rs
@@ -280,7 +280,7 @@ impl GenericParams {
             sm.type_params.insert(param_id, Either::Right(type_param.clone()));
 
             let type_ref = TypeRef::Path(name.into());
-            self.fill_bounds(&lower_ctx, &type_param, Either::Left(type_ref));
+            self.fill_bounds(lower_ctx, &type_param, Either::Left(type_ref));
         }
         for lifetime_param in params.lifetime_params() {
             let name =
@@ -289,7 +289,7 @@ impl GenericParams {
             let param_id = self.lifetimes.alloc(param);
             sm.lifetime_params.insert(param_id, lifetime_param.clone());
             let lifetime_ref = LifetimeRef::new_name(name);
-            self.fill_bounds(&lower_ctx, &lifetime_param, Either::Right(lifetime_ref));
+            self.fill_bounds(lower_ctx, &lifetime_param, Either::Right(lifetime_ref));
         }
         for const_param in params.const_params() {
             let name = const_param.name().map_or_else(Name::missing, |it| it.as_name());
diff --git a/crates/hir_def/src/item_tree/lower.rs b/crates/hir_def/src/item_tree/lower.rs
index cfda7cb32..3f90bda74 100644
--- a/crates/hir_def/src/item_tree/lower.rs
+++ b/crates/hir_def/src/item_tree/lower.rs
@@ -823,7 +823,7 @@ fn is_intrinsic_fn_unsafe(name: &Name) -> bool {
         known::type_name,
         known::variant_count,
     ]
-    .contains(&name)
+    .contains(name)
 }
 
 fn lower_abi(abi: ast::Abi) -> Interned<str> {
@@ -855,7 +855,7 @@ impl UseTreeLowering<'_> {
                 // E.g. `use something::{inner}` (prefix is `None`, path is `something`)
                 // or `use something::{path::{inner::{innerer}}}` (prefix is `something::path`, path is `inner`)
                 Some(path) => {
-                    match ModPath::from_src(self.db, path, &self.hygiene) {
+                    match ModPath::from_src(self.db, path, self.hygiene) {
                         Some(it) => Some(it),
                         None => return None, // FIXME: report errors somewhere
                     }
@@ -874,7 +874,7 @@ impl UseTreeLowering<'_> {
         } else {
             let is_glob = tree.star_token().is_some();
             let path = match tree.path() {
-                Some(path) => Some(ModPath::from_src(self.db, path, &self.hygiene)?),
+                Some(path) => Some(ModPath::from_src(self.db, path, self.hygiene)?),
                 None => None,
             };
             let alias = tree.rename().map(|a| {
diff --git a/crates/hir_def/src/nameres/collector.rs b/crates/hir_def/src/nameres/collector.rs
index 93f30f23d..6fab58f15 100644
--- a/crates/hir_def/src/nameres/collector.rs
+++ b/crates/hir_def/src/nameres/collector.rs
@@ -500,7 +500,7 @@ impl DefCollector<'_> {
             let (per_ns, _) = self.def_map.resolve_path(
                 self.db,
                 self.def_map.root,
-                &path,
+                path,
                 BuiltinShadowMode::Other,
             );
 
@@ -722,7 +722,7 @@ impl DefCollector<'_> {
         if import.is_extern_crate {
             let res = self.def_map.resolve_name_in_extern_prelude(
                 self.db,
-                &import
+                import
                     .path
                     .as_ident()
                     .expect("extern crate should have been desugared to one-element path"),
@@ -1351,7 +1351,7 @@ impl ModCollector<'_, '_> {
                     let imports = Import::from_use(
                         self.def_collector.db,
                         krate,
-                        &self.item_tree,
+                        self.item_tree,
                         ItemTreeId::new(self.file_id, import_id),
                     );
                     self.def_collector.unresolved_imports.extend(imports.into_iter().map(
@@ -1368,7 +1368,7 @@ impl ModCollector<'_, '_> {
                         import: Import::from_extern_crate(
                             self.def_collector.db,
                             krate,
-                            &self.item_tree,
+                            self.item_tree,
                             ItemTreeId::new(self.file_id, import_id),
                         ),
                         status: PartialResolvedImport::Unresolved,
@@ -1889,7 +1889,7 @@ impl ModCollector<'_, '_> {
                     self.def_collector.def_map.with_ancestor_maps(
                         self.def_collector.db,
                         self.module_id,
-                        &mut |map, module| map[module].scope.get_legacy_macro(&name),
+                        &mut |map, module| map[module].scope.get_legacy_macro(name),
                     )
                 })
             },
@@ -1993,7 +1993,7 @@ mod tests {
     }
 
     fn do_resolve(code: &str) -> DefMap {
-        let (db, _file_id) = TestDB::with_single_file(&code);
+        let (db, _file_id) = TestDB::with_single_file(code);
         let krate = db.test_crate();
 
         let edition = db.crate_graph()[krate].edition;
diff --git a/crates/hir_def/src/nameres/path_resolution.rs b/crates/hir_def/src/nameres/path_resolution.rs
index c984148c3..629bc7952 100644
--- a/crates/hir_def/src/nameres/path_resolution.rs
+++ b/crates/hir_def/src/nameres/path_resolution.rs
@@ -93,7 +93,7 @@ impl DefMap {
         let mut vis = match visibility {
             RawVisibility::Module(path) => {
                 let (result, remaining) =
-                    self.resolve_path(db, original_module, &path, BuiltinShadowMode::Module);
+                    self.resolve_path(db, original_module, path, BuiltinShadowMode::Module);
                 if remaining.is_some() {
                     return None;
                 }
@@ -205,7 +205,7 @@ impl DefMap {
                     None => return ResolvePathResult::empty(ReachedFixedPoint::Yes),
                 };
                 log::debug!("resolving {:?} in crate root (+ extern prelude)", segment);
-                self.resolve_name_in_crate_root_or_extern_prelude(db, &segment)
+                self.resolve_name_in_crate_root_or_extern_prelude(db, segment)
             }
             PathKind::Plain => {
                 let (_, segment) = match segments.next() {
@@ -222,7 +222,7 @@ impl DefMap {
                     if path.segments().len() == 1 { shadow } else { BuiltinShadowMode::Module };
 
                 log::debug!("resolving {:?} in module", segment);
-                self.resolve_name_in_module(db, original_module, &segment, prefer_module)
+                self.resolve_name_in_module(db, original_module, segment, prefer_module)
             }
             PathKind::Super(lvl) => {
                 let mut module = original_module;
@@ -269,7 +269,7 @@ impl DefMap {
                     Some((_, segment)) => segment,
                     None => return ResolvePathResult::empty(ReachedFixedPoint::Yes),
                 };
-                if let Some(def) = self.extern_prelude.get(&segment) {
+                if let Some(def) = self.extern_prelude.get(segment) {
                     log::debug!("absolute path {:?} resolved to crate {:?}", path, def);
                     PerNs::types(*def, Visibility::Public)
                 } else {
@@ -319,13 +319,13 @@ impl DefMap {
                     };
 
                     // Since it is a qualified path here, it should not contains legacy macros
-                    module_data.scope.get(&segment)
+                    module_data.scope.get(segment)
                 }
                 ModuleDefId::AdtId(AdtId::EnumId(e)) => {
                     // enum variant
                     cov_mark::hit!(can_import_enum_variant);
                     let enum_data = db.enum_data(e);
-                    match enum_data.variant(&segment) {
+                    match enum_data.variant(segment) {
                         Some(local_id) => {
                             let variant = EnumVariantId { parent: e, local_id };
                             match &*enum_data.variants[local_id].variant_data {
diff --git a/crates/hir_def/src/path/lower.rs b/crates/hir_def/src/path/lower.rs
index f6220aa92..27345d07c 100644
--- a/crates/hir_def/src/path/lower.rs
+++ b/crates/hir_def/src/path/lower.rs
@@ -208,13 +208,13 @@ fn lower_generic_args_from_fn_path(
     let params = params?;
     let mut param_types = Vec::new();
     for param in params.params() {
-        let type_ref = TypeRef::from_ast_opt(&ctx, param.ty());
+        let type_ref = TypeRef::from_ast_opt(ctx, param.ty());
         param_types.push(type_ref);
     }
     let arg = GenericArg::Type(TypeRef::Tuple(param_types));
     args.push(arg);
     if let Some(ret_type) = ret_type {
-        let type_ref = TypeRef::from_ast_opt(&ctx, ret_type.ty());
+        let type_ref = TypeRef::from_ast_opt(ctx, ret_type.ty());
         bindings.push(AssociatedTypeBinding {
             name: name![Output],
             type_ref: Some(type_ref),
diff --git a/crates/hir_def/src/resolver.rs b/crates/hir_def/src/resolver.rs
index fb8a6f260..d4681fa3e 100644
--- a/crates/hir_def/src/resolver.rs
+++ b/crates/hir_def/src/resolver.rs
@@ -133,7 +133,7 @@ impl Resolver {
             Some(it) => it,
             None => return PerNs::none(),
         };
-        let (module_res, segment_index) = item_map.resolve_path(db, module, &path, shadow);
+        let (module_res, segment_index) = item_map.resolve_path(db, module, path, shadow);
         if segment_index.is_some() {
             return PerNs::none();
         }
@@ -150,7 +150,7 @@ impl Resolver {
         path: &ModPath,
     ) -> Option<TraitId> {
         let (item_map, module) = self.module_scope()?;
-        let (module_res, ..) = item_map.resolve_path(db, module, &path, BuiltinShadowMode::Module);
+        let (module_res, ..) = item_map.resolve_path(db, module, path, BuiltinShadowMode::Module);
         match module_res.take_types()? {
             ModuleDefId::TraitId(it) => Some(it),
             _ => None,
@@ -325,7 +325,7 @@ impl Resolver {
         path: &ModPath,
     ) -> Option<MacroDefId> {
         let (item_map, module) = self.module_scope()?;
-        item_map.resolve_path(db, module, &path, BuiltinShadowMode::Other).0.take_macros()
+        item_map.resolve_path(db, module, path, BuiltinShadowMode::Other).0.take_macros()
     }
 
     pub fn process_all_names(&self, db: &dyn DefDatabase, f: &mut dyn FnMut(Name, ScopeDef)) {
@@ -561,7 +561,7 @@ impl ModuleItemMap {
         path: &ModPath,
     ) -> Option<ResolveValueResult> {
         let (module_def, idx) =
-            self.def_map.resolve_path_locally(db, self.module_id, &path, BuiltinShadowMode::Other);
+            self.def_map.resolve_path_locally(db, self.module_id, path, BuiltinShadowMode::Other);
         match idx {
             None => {
                 let value = to_value_ns(module_def)?;
@@ -591,7 +591,7 @@ impl ModuleItemMap {
         path: &ModPath,
     ) -> Option<(TypeNs, Option<usize>)> {
         let (module_def, idx) =
-            self.def_map.resolve_path_locally(db, self.module_id, &path, BuiltinShadowMode::Other);
+            self.def_map.resolve_path_locally(db, self.module_id, path, BuiltinShadowMode::Other);
         let res = to_type_ns(module_def)?;
         Some((res, idx))
     }
diff --git a/crates/hir_def/src/type_ref.rs b/crates/hir_def/src/type_ref.rs
index cbde6b940..ffe499973 100644
--- a/crates/hir_def/src/type_ref.rs
+++ b/crates/hir_def/src/type_ref.rs
@@ -128,7 +128,7 @@ impl TypeRef {
     /// Converts an `ast::TypeRef` to a `hir::TypeRef`.
     pub fn from_ast(ctx: &LowerCtx, node: ast::Type) -> Self {
         match node {
-            ast::Type::ParenType(inner) => TypeRef::from_ast_opt(&ctx, inner.ty()),
+            ast::Type::ParenType(inner) => TypeRef::from_ast_opt(ctx, inner.ty()),
             ast::Type::TupleType(inner) => {
                 TypeRef::Tuple(inner.fields().map(|it| TypeRef::from_ast(ctx, it)).collect())
             }
@@ -142,7 +142,7 @@ impl TypeRef {
                     .unwrap_or(TypeRef::Error)
             }
             ast::Type::PtrType(inner) => {
-                let inner_ty = TypeRef::from_ast_opt(&ctx, inner.ty());
+                let inner_ty = TypeRef::from_ast_opt(ctx, inner.ty());
                 let mutability = Mutability::from_mutable(inner.mut_token().is_some());
                 TypeRef::RawPtr(Box::new(inner_ty), mutability)
             }
@@ -156,13 +156,13 @@ impl TypeRef {
                     .map(ConstScalar::usize_from_literal_expr)
                     .unwrap_or(ConstScalar::Unknown);
 
-                TypeRef::Array(Box::new(TypeRef::from_ast_opt(&ctx, inner.ty())), len)
+                TypeRef::Array(Box::new(TypeRef::from_ast_opt(ctx, inner.ty())), len)
             }
             ast::Type::SliceType(inner) => {
-                TypeRef::Slice(Box::new(TypeRef::from_ast_opt(&ctx, inner.ty())))
+                TypeRef::Slice(Box::new(TypeRef::from_ast_opt(ctx, inner.ty())))
             }
             ast::Type::RefType(inner) => {
-                let inner_ty = TypeRef::from_ast_opt(&ctx, inner.ty());
+                let inner_ty = TypeRef::from_ast_opt(ctx, inner.ty());
                 let lifetime = inner.lifetime().map(|lt| LifetimeRef::new(&lt));
                 let mutability = Mutability::from_mutable(inner.mut_token().is_some());
                 TypeRef::Reference(Box::new(inner_ty), lifetime, mutability)
@@ -180,7 +180,7 @@ impl TypeRef {
                         is_varargs = param.dotdotdot_token().is_some();
                     }
 
-                    pl.params().map(|p| p.ty()).map(|it| TypeRef::from_ast_opt(&ctx, it)).collect()
+                    pl.params().map(|p| p.ty()).map(|it| TypeRef::from_ast_opt(ctx, it)).collect()
                 } else {
                     Vec::new()
                 };
@@ -188,7 +188,7 @@ impl TypeRef {
                 TypeRef::Fn(params, is_varargs)
             }
             // for types are close enough for our purposes to the inner type for now...
-            ast::Type::ForType(inner) => TypeRef::from_ast_opt(&ctx, inner.ty()),
+            ast::Type::ForType(inner) => TypeRef::from_ast_opt(ctx, inner.ty()),
             ast::Type::ImplTraitType(inner) => {
                 TypeRef::ImplTrait(type_bounds_from_ast(ctx, inner.type_bound_list()))
             }
@@ -229,7 +229,7 @@ impl TypeRef {
                 TypeRef::RawPtr(type_ref, _)
                 | TypeRef::Reference(type_ref, ..)
                 | TypeRef::Array(type_ref, _)
-                | TypeRef::Slice(type_ref) => go(&type_ref, f),
+                | TypeRef::Slice(type_ref) => go(type_ref, f),
                 TypeRef::ImplTrait(bounds) | TypeRef::DynTrait(bounds) => {
                     for bound in bounds {
                         match bound.as_ref() {