Merge pull request #5140 from calebcartwright/subtree-sync-2021-12-19

Subtree sync

rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-11-08"
+channel = "nightly-2021-12-20"
 components = ["rustc-dev"]

src/attr.rs

@@ -337,7 +337,7 @@ impl Rewrite for ast::Attribute {
         } else {
             let should_skip = self
                 .ident()
-                .map(|s| context.skip_context.skip_attribute(&s.name.as_str()))
+                .map(|s| context.skip_context.skip_attribute(s.name.as_str()))
                 .unwrap_or(false);
             let prefix = attr_prefix(self);
 
@@ -356,7 +356,7 @@ impl Rewrite for ast::Attribute {
 
                         let literal_str = literal.as_str();
                         let doc_comment_formatter =
-                            DocCommentFormatter::new(&*literal_str, comment_style);
+                            DocCommentFormatter::new(literal_str, comment_style);
                         let doc_comment = format!("{}", doc_comment_formatter);
                         return rewrite_doc_comment(
                             &doc_comment,

src/items.rs

@@ -616,10 +616,10 @@ impl<'a> FmtVisitor<'a> {
                 (TyAlias(lty), TyAlias(rty))
                     if both_type(&lty.ty, &rty.ty) || both_opaque(&lty.ty, &rty.ty) =>
                 {
-                    a.ident.as_str().cmp(&b.ident.as_str())
+                    a.ident.as_str().cmp(b.ident.as_str())
                 }
                 (Const(..), Const(..)) | (MacCall(..), MacCall(..)) => {
-                    a.ident.as_str().cmp(&b.ident.as_str())
+                    a.ident.as_str().cmp(b.ident.as_str())
                 }
                 (Fn(..), Fn(..)) => a.span.lo().cmp(&b.span.lo()),
                 (TyAlias(ty), _) if is_type(&ty.ty) => Ordering::Less,
@@ -1029,7 +1029,7 @@ pub(crate) fn format_trait(
         if !bounds.is_empty() {
             let ident_hi = context
                 .snippet_provider
-                .span_after(item.span, &item.ident.as_str());
+                .span_after(item.span, item.ident.as_str());
             let bound_hi = bounds.last().unwrap().span().hi();
             let snippet = context.snippet(mk_sp(ident_hi, bound_hi));
             if contains_comment(snippet) {

src/modules.rs

@@ -455,7 +455,7 @@ impl<'ast, 'sess, 'c> ModResolver<'ast, 'sess> {
 
     fn push_inline_mod_directory(&mut self, id: symbol::Ident, attrs: &[ast::Attribute]) {
         if let Some(path) = find_path_value(attrs) {
-            self.directory.path.push(&*path.as_str());
+            self.directory.path.push(path.as_str());
             self.directory.ownership = DirectoryOwnership::Owned { relative: None };
         } else {
             // We have to push on the current module name in the case of relative
@@ -467,10 +467,10 @@ impl<'ast, 'sess, 'c> ModResolver<'ast, 'sess> {
             if let DirectoryOwnership::Owned { relative } = &mut self.directory.ownership {
                 if let Some(ident) = relative.take() {
                     // remove the relative offset
-                    self.directory.path.push(&*ident.as_str());
+                    self.directory.path.push(ident.as_str());
                 }
             }
-            self.directory.path.push(&*id.as_str());
+            self.directory.path.push(id.as_str());
         }
     }
 

src/reorder.rs

@@ -26,14 +26,14 @@ use crate::visitor::FmtVisitor;
 fn compare_items(a: &ast::Item, b: &ast::Item) -> Ordering {
     match (&a.kind, &b.kind) {
         (&ast::ItemKind::Mod(..), &ast::ItemKind::Mod(..)) => {
-            a.ident.as_str().cmp(&b.ident.as_str())
+            a.ident.as_str().cmp(b.ident.as_str())
         }
         (&ast::ItemKind::ExternCrate(ref a_name), &ast::ItemKind::ExternCrate(ref b_name)) => {
             // `extern crate foo as bar;`
             //               ^^^ Comparing this.
-            let a_orig_name = a_name.map_or_else(|| a.ident.as_str(), rustc_span::Symbol::as_str);
+            let a_orig_name = a_name.unwrap_or(a.ident.name);
-            let b_orig_name = b_name.map_or_else(|| b.ident.as_str(), rustc_span::Symbol::as_str);
+            let b_orig_name = b_name.unwrap_or(b.ident.name);
-            let result = a_orig_name.cmp(&b_orig_name);
+            let result = a_orig_name.as_str().cmp(b_orig_name.as_str());
             if result != Ordering::Equal {
                 return result;
             }
@@ -44,7 +44,7 @@ fn compare_items(a: &ast::Item, b: &ast::Item) -> Ordering {
                 (Some(..), None) => Ordering::Greater,
                 (None, Some(..)) => Ordering::Less,
                 (None, None) => Ordering::Equal,
-                (Some(..), Some(..)) => a.ident.as_str().cmp(&b.ident.as_str()),
+                (Some(..), Some(..)) => a.ident.as_str().cmp(b.ident.as_str()),
             }
         }
         _ => unreachable!(),

src/syntux/parser.rs

@@ -95,15 +95,17 @@ pub(crate) enum ParserError {
 
 impl<'a> Parser<'a> {
     pub(crate) fn submod_path_from_attr(attrs: &[ast::Attribute], path: &Path) -> Option<PathBuf> {
-        let path_string = first_attr_value_str_by_name(attrs, sym::path)?.as_str();
+        let path_sym = first_attr_value_str_by_name(attrs, sym::path)?;
+        let path_str = path_sym.as_str();
+
         // On windows, the base path might have the form
         // `\\?\foo\bar` in which case it does not tolerate
         // mixed `/` and `\` separators, so canonicalize
         // `/` to `\`.
         #[cfg(windows)]
-        let path_string = path_string.replace("/", "\\");
+        let path_str = path_str.replace("/", "\\");
 
-        Some(path.join(&*path_string))
+        Some(path.join(path_str))
     }
 
     pub(crate) fn parse_file_as_module(

src/utils.rs

@@ -260,7 +260,7 @@ fn is_skip(meta_item: &MetaItem) -> bool {
     match meta_item.kind {
         MetaItemKind::Word => {
             let path_str = pprust::path_to_string(&meta_item.path);
-            path_str == *skip_annotation().as_str() || path_str == *depr_skip_annotation().as_str()
+            path_str == skip_annotation().as_str() || path_str == depr_skip_annotation().as_str()
         }
         MetaItemKind::List(ref l) => {
             meta_item.has_name(sym::cfg_attr) && l.len() == 2 && is_skip_nested(&l[1])