Auto merge of #12527 - flip1995:rustup, r=flip1995

Rustup

r? `@ghost`

changelog: none

Author: bors

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy"
-version = "0.1.78"
+version = "0.1.79"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"

clippy_config/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy_config"
-version = "0.1.78"
+version = "0.1.79"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

clippy_lints/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy_lints"
-version = "0.1.78"
+version = "0.1.79"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"

clippy_lints/src/attrs/utils.rs

@@ -52,7 +52,7 @@ fn is_relevant_block(cx: &LateContext<'_>, typeck_results: &ty::TypeckResults<'_
             .as_ref()
             .map_or(false, |e| is_relevant_expr(cx, typeck_results, e)),
         |stmt| match &stmt.kind {
-            StmtKind::Local(_) => true,
+            StmtKind::Let(_) => true,
             StmtKind::Expr(expr) | StmtKind::Semi(expr) => is_relevant_expr(cx, typeck_results, expr),
             StmtKind::Item(_) => false,
         },

clippy_lints/src/copies.rs

@@ -349,7 +349,7 @@ impl BlockEq {
 
 /// If the statement is a local, checks if the bound names match the expected list of names.
 fn eq_binding_names(s: &Stmt<'_>, names: &[(HirId, Symbol)]) -> bool {
-    if let StmtKind::Local(l) = s.kind {
+    if let StmtKind::Let(l) = s.kind {
         let mut i = 0usize;
         let mut res = true;
         l.pat.each_binding_or_first(&mut |_, _, _, name| {
@@ -389,7 +389,7 @@ fn eq_stmts(
     eq: &mut HirEqInterExpr<'_, '_, '_>,
     moved_bindings: &mut Vec<(HirId, Symbol)>,
 ) -> bool {
-    (if let StmtKind::Local(l) = stmt.kind {
+    (if let StmtKind::Let(l) = stmt.kind {
         let old_count = moved_bindings.len();
         l.pat.each_binding_or_first(&mut |_, id, _, name| {
             moved_bindings.push((id, name.name));
@@ -432,7 +432,7 @@ fn scan_block_for_eq<'tcx>(
         .iter()
         .enumerate()
         .find(|&(i, stmt)| {
-            if let StmtKind::Local(l) = stmt.kind
+            if let StmtKind::Let(l) = stmt.kind
                 && needs_ordered_drop(cx, cx.typeck_results().node_type(l.hir_id))
             {
                 local_needs_ordered_drop = true;
@@ -509,7 +509,7 @@ fn scan_block_for_eq<'tcx>(
                 // Clear out all locals seen at the end so far. None of them can be moved.
                 let stmts = &blocks[0].stmts;
                 for stmt in &stmts[stmts.len() - init..=stmts.len() - offset] {
-                    if let StmtKind::Local(l) = stmt.kind {
+                    if let StmtKind::Let(l) = stmt.kind {
                         l.pat.each_binding_or_first(&mut |_, id, _, _| {
                             // FIXME(rust/#120456) - is `swap_remove` correct?
                             eq.locals.swap_remove(&id);

clippy_lints/src/default.rs

@@ -121,7 +121,7 @@ impl<'tcx> LateLintPass<'tcx> for Default {
             // find all binding statements like `let mut _ = T::default()` where `T::default()` is the
             // `default` method of the `Default` trait, and store statement index in current block being
             // checked and the name of the bound variable
-            let (local, variant, binding_name, binding_type, span) = if let StmtKind::Local(local) = stmt.kind
+            let (local, variant, binding_name, binding_type, span) = if let StmtKind::Let(local) = stmt.kind
                 // only take `let ...` statements
                 && let Some(expr) = local.init
                 && !any_parent_is_automatically_derived(cx.tcx, expr.hir_id)

clippy_lints/src/default_numeric_fallback.rs

@@ -221,7 +221,7 @@ impl<'a, 'tcx> Visitor<'tcx> for NumericFallbackVisitor<'a, 'tcx> {
     fn visit_stmt(&mut self, stmt: &'tcx Stmt<'_>) {
         match stmt.kind {
             // we cannot check the exact type since it's a hir::Ty which does not implement `is_numeric`
-            StmtKind::Local(local) => self.ty_bounds.push(ExplicitTyBound(local.ty.is_some())),
+            StmtKind::Let(local) => self.ty_bounds.push(ExplicitTyBound(local.ty.is_some())),
 
             _ => self.ty_bounds.push(ExplicitTyBound(false)),
         }

clippy_lints/src/entry.rs

@@ -423,7 +423,7 @@ impl<'tcx> Visitor<'tcx> for InsertSearcher<'_, 'tcx> {
                 }
             },
             StmtKind::Expr(e) => self.visit_expr(e),
-            StmtKind::Local(l) => {
+            StmtKind::Let(l) => {
                 self.visit_pat(l.pat);
                 if let Some(e) = l.init {
                     self.allow_insert_closure &= !self.in_tail_pos;

clippy_lints/src/escape.rs

@@ -76,10 +76,9 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal {
             .hir()
             .get_parent_item(cx.tcx.local_def_id_to_hir_id(fn_def_id))
             .def_id;
-        let parent_node = cx.tcx.opt_hir_node_by_def_id(parent_id);
 
         let mut trait_self_ty = None;
-        if let Some(Node::Item(item)) = parent_node {
+        if let Node::Item(item) = cx.tcx.hir_node_by_def_id(parent_id) {
             // If the method is an impl for a trait, don't warn.
             if let ItemKind::Impl(Impl { of_trait: Some(_), .. }) = item.kind {
                 return;

clippy_lints/src/exit.rs

@@ -46,7 +46,7 @@ impl<'tcx> LateLintPass<'tcx> for Exit {
             && let Some(def_id) = cx.qpath_res(path, path_expr.hir_id).opt_def_id()
             && cx.tcx.is_diagnostic_item(sym::process_exit, def_id)
             && let parent = cx.tcx.hir().get_parent_item(e.hir_id).def_id
-            && let Some(Node::Item(Item{kind: ItemKind::Fn(..), ..})) = cx.tcx.opt_hir_node_by_def_id(parent)
+            && let Node::Item(Item{kind: ItemKind::Fn(..), ..}) = cx.tcx.hir_node_by_def_id(parent)
             // If the next item up is a function we check if it is an entry point
             // and only then emit a linter warning
             && !is_entrypoint_fn(cx, parent.to_def_id())

clippy_lints/src/explicit_write.rs

@@ -102,7 +102,7 @@ impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
 fn look_in_block<'tcx, 'hir>(cx: &LateContext<'tcx>, kind: &'tcx ExprKind<'hir>) -> &'tcx ExprKind<'hir> {
     if let ExprKind::Block(block, _label @ None) = kind
         && let Block {
-            stmts: [Stmt { kind: StmtKind::Local(local), .. }],
+            stmts: [Stmt { kind: StmtKind::Let(local), .. }],
             expr: Some(expr_end_of_block),
             rules: BlockCheckMode::DefaultBlock,
             ..

clippy_lints/src/functions/result.rs

@@ -92,7 +92,7 @@ fn check_result_large_err<'tcx>(cx: &LateContext<'tcx>, err_ty: Ty<'tcx>, hir_ty
             .expect("already checked this is adt")
             .did()
             .as_local()
-        && let Some(hir::Node::Item(item)) = cx.tcx.opt_hir_node_by_def_id(local_def_id)
+        && let hir::Node::Item(item) = cx.tcx.hir_node_by_def_id(local_def_id)
         && let hir::ItemKind::Enum(ref def, _) = item.kind
     {
         let variants_size = AdtVariantInfo::new(cx, *adt, subst);

clippy_lints/src/let_if_seq.rs

@@ -61,7 +61,7 @@ impl<'tcx> LateLintPass<'tcx> for LetIfSeq {
         let mut it = block.stmts.iter().peekable();
         while let Some(stmt) = it.next() {
             if let Some(expr) = it.peek()
-                && let hir::StmtKind::Local(local) = stmt.kind
+                && let hir::StmtKind::Let(local) = stmt.kind
                 && let hir::PatKind::Binding(mode, canonical_id, ident, None) = local.pat.kind
                 && let hir::StmtKind::Expr(if_) = expr.kind
                 && let hir::ExprKind::If(

clippy_lints/src/loops/manual_memcpy.rs

@@ -410,7 +410,7 @@ fn get_assignments<'a, 'tcx>(
     stmts
         .iter()
         .filter_map(move |stmt| match stmt.kind {
-            StmtKind::Local(..) | StmtKind::Item(..) => None,
+            StmtKind::Let(..) | StmtKind::Item(..) => None,
             StmtKind::Expr(e) | StmtKind::Semi(e) => Some(e),
         })
         .chain(*expr)

clippy_lints/src/loops/manual_while_let_some.rs

@@ -72,7 +72,7 @@ fn is_vec_pop_unwrap(cx: &LateContext<'_>, expr: &Expr<'_>, is_empty_recv: &Expr
 }
 
 fn check_local(cx: &LateContext<'_>, stmt: &Stmt<'_>, is_empty_recv: &Expr<'_>, loop_span: Span) {
-    if let StmtKind::Local(local) = stmt.kind
+    if let StmtKind::Let(local) = stmt.kind
         && let Some(init) = local.init
         && is_vec_pop_unwrap(cx, init, is_empty_recv)
     {

clippy_lints/src/loops/needless_range_loop.rs

@@ -273,7 +273,7 @@ impl<'a, 'tcx> VarVisitor<'a, 'tcx> {
                     }
                     return false; // no need to walk further *on the variable*
                 },
-                Res::Def(DefKind::Static(_) | DefKind::Const, ..) => {
+                Res::Def(DefKind::Static { .. } | DefKind::Const, ..) => {
                     if index_used_directly {
                         self.indexed_directly.insert(
                             seqvar.segments[0].ident.name,

clippy_lints/src/loops/never_loop.rs

@@ -137,7 +137,7 @@ fn stmt_to_expr<'tcx>(stmt: &Stmt<'tcx>) -> Option<(&'tcx Expr<'tcx>, Option<&'t
     match stmt.kind {
         StmtKind::Semi(e) | StmtKind::Expr(e) => Some((e, None)),
         // add the let...else expression (if present)
-        StmtKind::Local(local) => local.init.map(|init| (init, local.els)),
+        StmtKind::Let(local) => local.init.map(|init| (init, local.els)),
         StmtKind::Item(..) => None,
     }
 }
@@ -255,6 +255,7 @@ fn never_loop_expr<'tcx>(
             InlineAsmOperand::Const { .. } | InlineAsmOperand::SymFn { .. } | InlineAsmOperand::SymStatic { .. } => {
                 NeverLoopResult::Normal
             },
+            InlineAsmOperand::Label { block } => never_loop_block(cx, block, local_labels, main_loop_id),
         })),
         ExprKind::OffsetOf(_, _)
         | ExprKind::Yield(_, _)

clippy_lints/src/loops/utils.rs

@@ -2,8 +2,8 @@ use clippy_utils::ty::{has_iter_method, implements_trait};
 use clippy_utils::{get_parent_expr, is_integer_const, path_to_local, path_to_local_id, sugg};
 use rustc_ast::ast::{LitIntType, LitKind};
 use rustc_errors::Applicability;
-use rustc_hir::intravisit::{walk_expr, walk_local, walk_pat, walk_stmt, Visitor};
-use rustc_hir::{BinOpKind, BorrowKind, Expr, ExprKind, HirId, HirIdMap, Local, Mutability, Pat, PatKind, Stmt};
+use rustc_hir::intravisit::{walk_expr, walk_local, Visitor};
+use rustc_hir::{BinOpKind, BorrowKind, Expr, ExprKind, HirId, HirIdMap, Local, Mutability, PatKind};
 use rustc_lint::LateContext;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::ty::{self, Ty};
@@ -253,62 +253,6 @@ fn is_conditional(expr: &Expr<'_>) -> bool {
     matches!(expr.kind, ExprKind::If(..) | ExprKind::Match(..))
 }
 
-#[derive(PartialEq, Eq)]
-pub(super) enum Nesting {
-    Unknown,     // no nesting detected yet
-    RuledOut,    // the iterator is initialized or assigned within scope
-    LookFurther, // no nesting detected, no further walk required
-}
-
-use self::Nesting::{LookFurther, RuledOut, Unknown};
-
-pub(super) struct LoopNestVisitor {
-    pub(super) hir_id: HirId,
-    pub(super) iterator: HirId,
-    pub(super) nesting: Nesting,
-}
-
-impl<'tcx> Visitor<'tcx> for LoopNestVisitor {
-    fn visit_stmt(&mut self, stmt: &'tcx Stmt<'_>) {
-        if stmt.hir_id == self.hir_id {
-            self.nesting = LookFurther;
-        } else if self.nesting == Unknown {
-            walk_stmt(self, stmt);
-        }
-    }
-
-    fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
-        if self.nesting != Unknown {
-            return;
-        }
-        if expr.hir_id == self.hir_id {
-            self.nesting = LookFurther;
-            return;
-        }
-        match expr.kind {
-            ExprKind::Assign(path, _, _) | ExprKind::AssignOp(_, path, _) => {
-                if path_to_local_id(path, self.iterator) {
-                    self.nesting = RuledOut;
-                }
-            },
-            _ => walk_expr(self, expr),
-        }
-    }
-
-    fn visit_pat(&mut self, pat: &'tcx Pat<'_>) {
-        if self.nesting != Unknown {
-            return;
-        }
-        if let PatKind::Binding(_, id, ..) = pat.kind {
-            if id == self.iterator {
-                self.nesting = RuledOut;
-                return;
-            }
-        }
-        walk_pat(self, pat);
-    }
-}
-
 /// If `arg` was the argument to a `for` loop, return the "cleanest" way of writing the
 /// actual `Iterator` that the loop uses.
 pub(super) fn make_iterator_snippet(cx: &LateContext<'_>, arg: &Expr<'_>, applic_ref: &mut Applicability) -> String {

clippy_lints/src/loops/while_immutable_condition.rs

@@ -101,7 +101,7 @@ impl<'a, 'tcx> VarCollectorVisitor<'a, 'tcx> {
                 Res::Local(hir_id) => {
                     self.ids.insert(hir_id);
                 },
-                Res::Def(DefKind::Static(_), def_id) => {
+                Res::Def(DefKind::Static { .. }, def_id) => {
                     let mutable = self.cx.tcx.is_mutable_static(def_id);
                     self.def_ids.insert(def_id, mutable);
                 },

clippy_lints/src/loops/while_let_loop.rs

@@ -11,7 +11,7 @@ use rustc_lint::LateContext;
 pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>, loop_block: &'tcx Block<'_>) {
     let (init, has_trailing_exprs) = match (loop_block.stmts, loop_block.expr) {
         ([stmt, stmts @ ..], expr) => {
-            if let StmtKind::Local(&Local {
+            if let StmtKind::Let(&Local {
                 init: Some(e),
                 els: None,
                 ..

clippy_lints/src/macro_use.rs

@@ -30,14 +30,7 @@ declare_clippy_lint! {
     "#[macro_use] is no longer needed"
 }
 
-#[derive(Clone, Debug, PartialEq, Eq)]
-struct PathAndSpan {
-    path: String,
-    span: Span,
-}
-
-/// `MacroRefData` includes the name of the macro
-/// and the path from `SourceMap::span_to_filename`.
+/// `MacroRefData` includes the name of the macro.
 #[derive(Debug, Clone)]
 pub struct MacroRefData {
     name: String,

clippy_lints/src/manual_let_else.rs

@@ -53,7 +53,7 @@ impl<'tcx> QuestionMark {
             return;
         }
 
-        if let StmtKind::Local(local) = stmt.kind
+        if let StmtKind::Let(local) = stmt.kind
             && let Some(init) = local.init
             && local.els.is_none()
             && local.ty.is_none()

clippy_lints/src/map_unit_fn.rs

@@ -138,7 +138,7 @@ fn reduce_unit_expression(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> Option<
                     // If block only contains statements,
                     // reduce `{ X; }` to `X` or `X;`
                     match inner_stmt.kind {
-                        hir::StmtKind::Local(local) => Some(local.span),
+                        hir::StmtKind::Let(local) => Some(local.span),
                         hir::StmtKind::Expr(e) => Some(e.span),
                         hir::StmtKind::Semi(..) => Some(inner_stmt.span),
                         hir::StmtKind::Item(..) => None,

clippy_lints/src/methods/expect_fun_call.rs

@@ -91,7 +91,7 @@ pub(super) fn check<'tcx>(
             },
             hir::ExprKind::Path(ref p) => matches!(
                 cx.qpath_res(p, arg.hir_id),
-                hir::def::Res::Def(hir::def::DefKind::Const | hir::def::DefKind::Static(_), _)
+                hir::def::Res::Def(hir::def::DefKind::Const | hir::def::DefKind::Static { .. }, _)
             ),
             _ => false,
         }

clippy_lints/src/methods/needless_collect.rs

@@ -424,7 +424,7 @@ fn get_expr_and_hir_id_from_stmt<'v>(stmt: &'v Stmt<'v>) -> Option<(&'v Expr<'v>
     match stmt.kind {
         StmtKind::Expr(expr) | StmtKind::Semi(expr) => Some((expr, None)),
         StmtKind::Item(..) => None,
-        StmtKind::Local(Local { init, pat, .. }) => {
+        StmtKind::Let(Local { init, pat, .. }) => {
             if let PatKind::Binding(_, hir_id, ..) = pat.kind {
                 init.map(|init_expr| (init_expr, Some(hir_id)))
             } else {

clippy_lints/src/methods/str_splitn.rs

@@ -198,7 +198,7 @@ fn indirect_usage<'tcx>(
     binding: HirId,
     ctxt: SyntaxContext,
 ) -> Option<IndirectUsage<'tcx>> {
-    if let StmtKind::Local(&Local {
+    if let StmtKind::Let(&Local {
         pat: Pat {
             kind: PatKind::Binding(BindingAnnotation::NONE, _, ident, None),
             ..

clippy_lints/src/methods/unnecessary_result_map_or_else.rs

@@ -27,7 +27,7 @@ fn emit_lint(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, def_arg: &E
 
 fn get_last_chain_binding_hir_id(mut hir_id: HirId, statements: &[Stmt<'_>]) -> Option<HirId> {
     for stmt in statements {
-        if let StmtKind::Local(local) = stmt.kind
+        if let StmtKind::Let(local) = stmt.kind
             && let Some(init) = local.init
             && let ExprKind::Path(QPath::Resolved(_, path)) = init.kind
             && let hir::def::Res::Local(local_hir_id) = path.res

clippy_lints/src/misc.rs

@@ -143,7 +143,7 @@ impl<'tcx> LateLintPass<'tcx> for LintPass {
 
     fn check_stmt(&mut self, cx: &LateContext<'tcx>, stmt: &'tcx Stmt<'_>) {
         if !in_external_macro(cx.tcx.sess, stmt.span)
-            && let StmtKind::Local(local) = stmt.kind
+            && let StmtKind::Let(local) = stmt.kind
             && let PatKind::Binding(BindingAnnotation(ByRef::Yes, mutabl), .., name, None) = local.pat.kind
             && let Some(init) = local.init
             // Do not emit if clippy::ref_patterns is not allowed to avoid having two lints for the same issue.
@@ -225,10 +225,9 @@ impl<'tcx> LateLintPass<'tcx> for LintPass {
                 if let Some(adt_def) = cx.typeck_results().expr_ty_adjusted(recv).ty_adt_def()
                     && let Some(field) = adt_def.all_fields().find(|field| field.name == ident.name)
                     && let Some(local_did) = field.did.as_local()
-                    && let Some(hir_id) = cx.tcx.opt_local_def_id_to_hir_id(local_did)
                     && !cx.tcx.type_of(field.did).skip_binder().is_phantom_data()
                 {
-                    (hir_id, ident)
+                    (cx.tcx.local_def_id_to_hir_id(local_did), ident)
                 } else {
                     return;
                 }

clippy_lints/src/missing_fields_in_debug.rs

@@ -220,7 +220,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingFieldsInDebug {
             && let self_ty = cx.tcx.type_of(self_path_did).skip_binder().peel_refs()
             && let Some(self_adt) = self_ty.ty_adt_def()
             && let Some(self_def_id) = self_adt.did().as_local()
-            && let Some(Node::Item(self_item)) = cx.tcx.opt_hir_node_by_def_id(self_def_id)
+            && let Node::Item(self_item) = cx.tcx.hir_node_by_def_id(self_def_id)
             // NB: can't call cx.typeck_results() as we are not in a body
             && let typeck_results = cx.tcx.typeck_body(*body_id)
             && should_lint(cx, typeck_results, block)

clippy_lints/src/mixed_read_write_in_expression.rs

@@ -97,7 +97,7 @@ impl<'tcx> LateLintPass<'tcx> for EvalOrderDependence {
     }
     fn check_stmt(&mut self, cx: &LateContext<'tcx>, stmt: &'tcx Stmt<'_>) {
         match stmt.kind {
-            StmtKind::Local(local) => {
+            StmtKind::Let(local) => {
                 if let Local { init: Some(e), .. } = local {
                     DivergenceVisitor { cx }.visit_expr(e);
                 }
@@ -291,7 +291,7 @@ fn check_stmt<'tcx>(vis: &mut ReadVisitor<'_, 'tcx>, stmt: &'tcx Stmt<'_>) -> St
         StmtKind::Expr(expr) | StmtKind::Semi(expr) => check_expr(vis, expr),
         // If the declaration is of a local variable, check its initializer
         // expression if it has one. Otherwise, keep going.
-        StmtKind::Local(local) => local
+        StmtKind::Let(local) => local
             .init
             .as_ref()
             .map_or(StopEarly::KeepGoing, |expr| check_expr(vis, expr)),