From 966c23f5290275ce17564f6027a17ec20cd6078f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= <matthias.krueger@famsik.de>
Date: Wed, 17 Mar 2021 01:27:56 +0100
Subject: avoid converting types into themselves via .into()
 (clippy::useless-conversion)

example: let x: String = String::from("hello world").into();
---
 crates/hir/src/attrs.rs           |  2 +-
 crates/hir/src/lib.rs             | 12 ++++++------
 crates/hir/src/semantics.rs       |  2 +-
 crates/hir/src/source_analyzer.rs |  2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'crates/hir')

diff --git a/crates/hir/src/attrs.rs b/crates/hir/src/attrs.rs
index 9e6a3e155..b9c695921 100644
--- a/crates/hir/src/attrs.rs
+++ b/crates/hir/src/attrs.rs
@@ -124,5 +124,5 @@ fn resolve_doc_path(
         Some(Namespace::Macros) => return None,
         None => resolved.iter_items().find_map(|it| it.as_module_def_id())?,
     };
-    Some(def.into())
+    Some(def)
 }
diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index 12dd5fb38..861b7329e 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -1335,7 +1335,7 @@ impl Local {
 
     // FIXME: why is this an option? It shouldn't be?
     pub fn name(self, db: &dyn HirDatabase) -> Option<Name> {
-        let body = db.body(self.parent.into());
+        let body = db.body(self.parent);
         match &body[self.pat_id] {
             Pat::Bind { name, .. } => Some(name.clone()),
             _ => None,
@@ -1347,7 +1347,7 @@ impl Local {
     }
 
     pub fn is_mut(self, db: &dyn HirDatabase) -> bool {
-        let body = db.body(self.parent.into());
+        let body = db.body(self.parent);
         matches!(&body[self.pat_id], Pat::Bind { mode: BindingAnnotation::Mutable, .. })
     }
 
@@ -1360,7 +1360,7 @@ impl Local {
     }
 
     pub fn ty(self, db: &dyn HirDatabase) -> Type {
-        let def = DefWithBodyId::from(self.parent);
+        let def = self.parent;
         let infer = db.infer(def);
         let ty = infer[self.pat_id].clone();
         let krate = def.module(db.upcast()).krate();
@@ -1368,7 +1368,7 @@ impl Local {
     }
 
     pub fn source(self, db: &dyn HirDatabase) -> InFile<Either<ast::IdentPat, ast::SelfParam>> {
-        let (_body, source_map) = db.body_with_source_map(self.parent.into());
+        let (_body, source_map) = db.body_with_source_map(self.parent);
         let src = source_map.pat_syntax(self.pat_id).unwrap(); // Hmm...
         let root = src.file_syntax(db.upcast());
         src.map(|ast| {
@@ -1393,12 +1393,12 @@ impl Label {
     }
 
     pub fn name(self, db: &dyn HirDatabase) -> Name {
-        let body = db.body(self.parent.into());
+        let body = db.body(self.parent);
         body[self.label_id].name.clone()
     }
 
     pub fn source(self, db: &dyn HirDatabase) -> InFile<ast::Label> {
-        let (_body, source_map) = db.body_with_source_map(self.parent.into());
+        let (_body, source_map) = db.body_with_source_map(self.parent);
         let src = source_map.label_syntax(self.label_id);
         let root = src.file_syntax(db.upcast());
         src.map(|ast| ast.to_node(&root))
diff --git a/crates/hir/src/semantics.rs b/crates/hir/src/semantics.rs
index 03c9371b5..00b076175 100644
--- a/crates/hir/src/semantics.rs
+++ b/crates/hir/src/semantics.rs
@@ -835,7 +835,7 @@ impl<'a> SemanticsScope<'a> {
                 resolver::ScopeDef::AdtSelfType(it) => ScopeDef::AdtSelfType(it.into()),
                 resolver::ScopeDef::GenericParam(id) => ScopeDef::GenericParam(id.into()),
                 resolver::ScopeDef::Local(pat_id) => {
-                    let parent = resolver.body_owner().unwrap().into();
+                    let parent = resolver.body_owner().unwrap();
                     ScopeDef::Local(Local { parent, pat_id })
                 }
             };
diff --git a/crates/hir/src/source_analyzer.rs b/crates/hir/src/source_analyzer.rs
index 117f32a9e..37d162b32 100644
--- a/crates/hir/src/source_analyzer.rs
+++ b/crates/hir/src/source_analyzer.rs
@@ -484,7 +484,7 @@ fn resolve_hir_path_(
         resolver.resolve_path_in_value_ns_fully(db.upcast(), path.mod_path()).and_then(|val| {
             let res = match val {
                 ValueNs::LocalBinding(pat_id) => {
-                    let var = Local { parent: body_owner?.into(), pat_id };
+                    let var = Local { parent: body_owner?, pat_id };
                     PathResolution::Local(var)
                 }
                 ValueNs::FunctionId(it) => PathResolution::Def(Function::from(it).into()),
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