Apply suggestions from code review

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>

crates/hir/src/semantics.rs

@@ -485,8 +485,8 @@ impl<'db, DB: HirDatabase> Semantics<'db, DB> {
     }
 
     /// Returns `true` if the `node` is inside an `unsafe` context.
-    pub fn is_inside_unsafe(&self, node: &SyntaxNode) -> bool {
-        self.imp.is_inside_unsafe(node)
+    pub fn is_inside_unsafe(&self, expr: &ast::Expr) -> bool {
+        self.imp.is_inside_unsafe(expr)
     }
 }
 
@@ -1471,15 +1471,15 @@ impl<'db> SemanticsImpl<'db> {
             .unwrap_or(false)
     }
 
-    fn is_inside_unsafe(&self, node: &SyntaxNode) -> bool {
+    fn is_inside_unsafe(&self, expr: &ast::Expr) -> bool {
         let item_or_variant = |ancestor: SyntaxNode| {
             if ast::Item::can_cast(ancestor.kind()) {
                 ast::Item::cast(ancestor).map(Either::Left)
             } else {
                 ast::Variant::cast(ancestor).map(Either::Right)
             }
         };
-        let Some(enclosing_item) = node.ancestors().find_map(item_or_variant) else { return false };
+        let Some(enclosing_item) = expr.syntax().ancestors().find_map(item_or_variant) else { return false };
 
         let def = match &enclosing_item {
             Either::Left(ast::Item::Fn(it)) => {
@@ -1495,17 +1495,17 @@ impl<'db> SemanticsImpl<'db> {
             Either::Right(it) => self.to_def(it).map(<_>::into).map(DefWithBodyId::VariantId),
         };
         let Some(def) = def else { return false };
-        let enclosing_node = enclosing_item.as_ref().either(|i| i.syntax(), |v| v.syntax());
-
-        if ast::Fn::cast(enclosing_node.clone()).and_then(|f| f.unsafe_token()).is_some() {
+        if matches!(&enclosing_item, Either::Left(ast::Item::Fn(it)) if it.unsafe_token().is_some())
+        {
             return true;
         }
+        let enclosing_node = enclosing_item.as_ref().either(|i| i.syntax(), |v| v.syntax());
 
         let (body, source_map) = self.db.body_with_source_map(def);
 
-        let file_id = self.find_file(node).file_id;
+        let file_id = self.find_file(expr.syntax()).file_id;
 
-        let Some(mut parent) = node.parent() else { return false };
+        let Some(mut parent) = expr.syntax().parent() else { return false };
         loop {
             if &parent == enclosing_node {
                 break false;

crates/ide/src/inlay_hints/adjustment.rs

@@ -15,7 +15,7 @@ pub(super) fn hints(
     config: &InlayHintsConfig,
     expr: &ast::Expr,
 ) -> Option<()> {
-    if config.adjustment_hints_hide_outside_unsafe && !sema.is_inside_unsafe(expr.syntax()) {
+    if config.adjustment_hints_hide_outside_unsafe && !sema.is_inside_unsafe(expr) {
         return None;
     }