Rustup

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy"
-version = "0.1.77"
+version = "0.1.78"
 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 = "0.1.77"
+version = "0.1.78"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

clippy_dev/src/update_lints.rs

@@ -927,7 +927,7 @@ fn remove_line_splices(s: &str) -> String {
         .and_then(|s| s.strip_suffix('"'))
         .unwrap_or_else(|| panic!("expected quoted string, found `{s}`"));
     let mut res = String::with_capacity(s.len());
-    unescape::unescape_literal(s, unescape::Mode::Str, &mut |range, ch| {
+    unescape::unescape_unicode(s, unescape::Mode::Str, &mut |range, ch| {
         if ch.is_ok() {
             res.push_str(&s[range]);
         }

clippy_lints/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy_lints"
-version = "0.1.77"
+version = "0.1.78"
 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/dereference.rs

@@ -881,6 +881,7 @@ impl TyCoercionStability {
                 | ty::Coroutine(..)
                 | ty::CoroutineWitness(..)
                 | ty::Closure(..)
+                | ty::CoroutineClosure(..)
                 | ty::Never
                 | ty::Tuple(_)
                 | ty::Alias(ty::Projection, _) => Self::Deref,

clippy_lints/src/methods/iter_nth_zero.rs

@@ -11,7 +11,7 @@ use rustc_span::sym;
 use super::ITER_NTH_ZERO;
 
 pub(super) fn check(cx: &LateContext<'_>, expr: &hir::Expr<'_>, recv: &hir::Expr<'_>, arg: &hir::Expr<'_>) {
-    if let OwnerNode::Item(item) = cx.tcx.hir().owner(cx.tcx.hir().get_parent_item(expr.hir_id))
+    if let OwnerNode::Item(item) = cx.tcx.hir_owner_node(cx.tcx.hir().get_parent_item(expr.hir_id))
         && let def_id = item.owner_id.to_def_id()
         && is_trait_method(cx, expr, sym::Iterator)
         && let Some(Constant::Int(0)) = constant(cx, cx.typeck_results(), arg)

clippy_lints/src/min_ident_chars.rs

@@ -93,9 +93,7 @@ impl Visitor<'_> for IdentVisitor<'_, '_> {
             // reimplement it even if we wanted to
             cx.tcx.opt_hir_node(hir_id)
         } else {
-            let Some(owner) = cx.tcx.hir_owner_nodes(hir_id.owner).as_owner() else {
-                return;
-            };
+            let owner = cx.tcx.hir_owner_nodes(hir_id.owner);
             owner.nodes.get(hir_id.local_id).copied().flatten().map(|p| p.node)
         };
         let Some(node) = node else {

clippy_lints/src/operators/arithmetic_side_effects.rs

@@ -1,11 +1,11 @@
 use super::ARITHMETIC_SIDE_EFFECTS;
 use clippy_utils::consts::{constant, constant_simple, Constant};
 use clippy_utils::diagnostics::span_lint;
-use clippy_utils::ty::type_diagnostic_name;
+use clippy_utils::ty::is_type_diagnostic_item;
 use clippy_utils::{expr_or_init, is_from_proc_macro, is_lint_allowed, peel_hir_expr_refs, peel_hir_expr_unary};
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::Ty;
+use rustc_middle::ty::{self, Ty};
 use rustc_session::impl_lint_pass;
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::sym;
@@ -88,37 +88,44 @@ impl ArithmeticSideEffects {
     }
 
     /// Verifies built-in types that have specific allowed operations
-    fn has_specific_allowed_type_and_operation(
-        cx: &LateContext<'_>,
-        lhs_ty: Ty<'_>,
+    fn has_specific_allowed_type_and_operation<'tcx>(
+        cx: &LateContext<'tcx>,
+        lhs_ty: Ty<'tcx>,
         op: &Spanned<hir::BinOpKind>,
-        rhs_ty: Ty<'_>,
+        rhs_ty: Ty<'tcx>,
     ) -> bool {
         let is_div_or_rem = matches!(op.node, hir::BinOpKind::Div | hir::BinOpKind::Rem);
-        let is_non_zero_u = |symbol: Option<Symbol>| {
-            matches!(
-                symbol,
-                Some(
-                    sym::NonZeroU128
-                        | sym::NonZeroU16
-                        | sym::NonZeroU32
-                        | sym::NonZeroU64
-                        | sym::NonZeroU8
-                        | sym::NonZeroUsize
-                )
-            )
+        let is_non_zero_u = |cx: &LateContext<'tcx>, ty: Ty<'tcx>| {
+            let tcx = cx.tcx;
+
+            let ty::Adt(adt, substs) = ty.kind() else { return false };
+
+            if !tcx.is_diagnostic_item(sym::NonZero, adt.did()) {
+                return false;
+            };
+
+            let int_type = substs.type_at(0);
+            let unsigned_int_types = [
+                tcx.types.u8,
+                tcx.types.u16,
+                tcx.types.u32,
+                tcx.types.u64,
+                tcx.types.u128,
+                tcx.types.usize,
+            ];
+
+            unsigned_int_types.contains(&int_type)
         };
         let is_sat_or_wrap = |ty: Ty<'_>| {
-            let is_sat = type_diagnostic_name(cx, ty) == Some(sym::Saturating);
-            let is_wrap = type_diagnostic_name(cx, ty) == Some(sym::Wrapping);
-            is_sat || is_wrap
+            is_type_diagnostic_item(cx, ty, sym::Saturating) || is_type_diagnostic_item(cx, ty, sym::Wrapping)
         };
 
-        // If the RHS is NonZeroU*, then division or module by zero will never occur
-        if is_non_zero_u(type_diagnostic_name(cx, rhs_ty)) && is_div_or_rem {
+        // If the RHS is `NonZero<u*>`, then division or module by zero will never occur.
+        if is_non_zero_u(cx, rhs_ty) && is_div_or_rem {
             return true;
         }
-        // `Saturation` and `Wrapping` can overflow if the RHS is zero in a division or module
+
+        // `Saturation` and `Wrapping` can overflow if the RHS is zero in a division or module.
         if is_sat_or_wrap(lhs_ty) {
             return !is_div_or_rem;
         }

clippy_lints/src/returns.rs

@@ -196,7 +196,7 @@ impl<'tcx> LateLintPass<'tcx> for Return {
             && is_res_lang_ctor(cx, path_res(cx, maybe_constr), ResultErr)
 
             // Ensure this is not the final stmt, otherwise removing it would cause a compile error
-            && let OwnerNode::Item(item) = cx.tcx.hir().owner(cx.tcx.hir().get_parent_item(expr.hir_id))
+            && let OwnerNode::Item(item) = cx.tcx.hir_owner_node(cx.tcx.hir().get_parent_item(expr.hir_id))
             && let ItemKind::Fn(_, _, body) = item.kind
             && let block = cx.tcx.hir().body(body).value
             && let ExprKind::Block(block, _) = block.kind

clippy_lints/src/transmute/transmute_int_to_non_zero.rs

@@ -16,40 +16,55 @@ pub(super) fn check<'tcx>(
     to_ty: Ty<'tcx>,
     arg: &'tcx Expr<'_>,
 ) -> bool {
-    let (ty::Int(_) | ty::Uint(_), Some(to_ty_adt)) = (&from_ty.kind(), to_ty.ty_adt_def()) else {
+    let tcx = cx.tcx;
+
+    let (ty::Int(_) | ty::Uint(_), ty::Adt(adt, substs)) = (&from_ty.kind(), to_ty.kind()) else {
         return false;
     };
-    let Some(to_type_sym) = cx.tcx.get_diagnostic_name(to_ty_adt.did()) else {
+
+    if !tcx.is_diagnostic_item(sym::NonZero, adt.did()) {
         return false;
     };
 
-    if !matches!(
-        to_type_sym,
-        sym::NonZeroU8
-            | sym::NonZeroU16
-            | sym::NonZeroU32
-            | sym::NonZeroU64
-            | sym::NonZeroU128
-            | sym::NonZeroI8
-            | sym::NonZeroI16
-            | sym::NonZeroI32
-            | sym::NonZeroI64
-            | sym::NonZeroI128
-    ) {
+    // FIXME: This can be simplified once `NonZero<T>` is stable.
+    let coercable_types = [
+        ("NonZeroU8", tcx.types.u8),
+        ("NonZeroU16", tcx.types.u16),
+        ("NonZeroU32", tcx.types.u32),
+        ("NonZeroU64", tcx.types.u64),
+        ("NonZeroU128", tcx.types.u128),
+        ("NonZeroUsize", tcx.types.usize),
+        ("NonZeroI8", tcx.types.i8),
+        ("NonZeroI16", tcx.types.i16),
+        ("NonZeroI32", tcx.types.i32),
+        ("NonZeroI64", tcx.types.i64),
+        ("NonZeroI128", tcx.types.i128),
+        ("NonZeroIsize", tcx.types.isize),
+    ];
+
+    let int_type = substs.type_at(0);
+
+    let Some(nonzero_alias) = coercable_types.iter().find_map(|(nonzero_alias, t)| {
+        if *t == int_type && *t == from_ty {
+            Some(nonzero_alias)
+        } else {
+            None
+        }
+    }) else {
         return false;
-    }
+    };
 
     span_lint_and_then(
         cx,
         TRANSMUTE_INT_TO_NON_ZERO,
         e.span,
-        &format!("transmute from a `{from_ty}` to a `{to_type_sym}`"),
+        &format!("transmute from a `{from_ty}` to a `{nonzero_alias}`"),
         |diag| {
             let arg = sugg::Sugg::hir(cx, arg, "..");
             diag.span_suggestion(
                 e.span,
                 "consider using",
-                format!("{to_type_sym}::{}({arg})", sym::new_unchecked),
+                format!("{nonzero_alias}::{}({arg})", sym::new_unchecked),
                 Applicability::Unspecified,
             );
         },

clippy_lints/src/transmute/utils.rs

@@ -37,12 +37,6 @@ pub(super) fn check_cast<'tcx>(
     let inherited = Inherited::new(cx.tcx, local_def_id);
     let fn_ctxt = FnCtxt::new(&inherited, cx.param_env, local_def_id);
 
-    // If we already have errors, we can't be sure we can pointer cast.
-    assert!(
-        !fn_ctxt.errors_reported_since_creation(),
-        "Newly created FnCtxt contained errors"
-    );
-
     if let Ok(check) = cast::CastCheck::new(
         &fn_ctxt,
         e,
@@ -53,17 +47,7 @@ pub(super) fn check_cast<'tcx>(
         DUMMY_SP,
         hir::Constness::NotConst,
     ) {
-        let res = check.do_check(&fn_ctxt);
-
-        // do_check's documentation says that it might return Ok and create
-        // errors in the fcx instead of returning Err in some cases. Those cases
-        // should be filtered out before getting here.
-        assert!(
-            !fn_ctxt.errors_reported_since_creation(),
-            "`fn_ctxt` contained errors after cast check!"
-        );
-
-        res.ok()
+        check.do_check(&fn_ctxt).ok()
     } else {
         None
     }

clippy_lints/src/utils/author.rs

@@ -490,6 +490,9 @@ impl<'a, 'tcx> PrintVisitor<'a, 'tcx> {
                             format!("ClosureKind::Coroutine(CoroutineKind::Coroutine(Movability::{movability:?})")
                         },
                     },
+                    ClosureKind::CoroutineClosure(desugaring) => {
+                        format!("ClosureKind::CoroutineClosure(CoroutineDesugaring::{desugaring:?})")
+                    },
                 };
 
                 let ret_ty = match fn_decl.output {

clippy_utils/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy_utils"
-version = "0.1.77"
+version = "0.1.78"
 edition = "2021"
 publish = false
 

declare_clippy_lint/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "declare_clippy_lint"
-version = "0.1.77"
+version = "0.1.78"
 edition = "2021"
 publish = false
 

rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2024-01-25"
+channel = "nightly-2024-02-08"
 components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]

tests/ui/author/blocks.stdout

@@ -40,10 +40,10 @@ if let ExprKind::Block(block, None) = expr.kind
 {
     // report your lint here
 }
-if let ExprKind::Closure { capture_clause: CaptureBy::Value { .. }, fn_decl: fn_decl, body: body_id, closure_kind: ClosureKind::Closure, .. } = expr.kind
+if let ExprKind::Closure { capture_clause: CaptureBy::Value { .. }, fn_decl: fn_decl, body: body_id, closure_kind: ClosureKind::CoroutineClosure(CoroutineDesugaring::Async), .. } = expr.kind
     && let FnRetTy::DefaultReturn(_) = fn_decl.output
     && expr1 = &cx.tcx.hir().body(body_id).value
-    && let ExprKind::Closure { capture_clause: CaptureBy::Value { .. }, fn_decl: fn_decl1, body: body_id1, closure_kind: ClosureKind::Coroutine(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Closure)), .. } = expr1.kind
+    && let ExprKind::Closure { capture_clause: CaptureBy::Ref, fn_decl: fn_decl1, body: body_id1, closure_kind: ClosureKind::Coroutine(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Closure)), .. } = expr1.kind
     && let FnRetTy::DefaultReturn(_) = fn_decl1.output
     && expr2 = &cx.tcx.hir().body(body_id1).value
     && let ExprKind::Block(block, None) = expr2.kind

tests/ui/crashes/ice-6254.rs

@@ -11,8 +11,6 @@ fn main() {
     // This used to cause an ICE (https://github.com/rust-lang/rust/issues/78071)
     match FOO_REF_REF {
         FOO_REF_REF => {},
-        //~^ ERROR: to use a constant of type `Foo` in a pattern, `Foo` must be annotated
-        //~| NOTE: for more information, see issue #62411 <https://github.com/rust-lang/ru
         Foo(_) => {},
     }
 }

tests/ui/expect_tool_lint_rfc_2383.rs

@@ -20,12 +20,8 @@ mod rustc_ok {
     pub fn rustc_lints() {
         let x = 42.0;
 
-        #[expect(illegal_floating_point_literal_pattern)]
-        match x {
-            5.0 => {},
-            6.0 => {},
-            _ => {},
-        }
+        #[expect(invalid_nan_comparisons)]
+        let _b = x == f32::NAN;
     }
 }
 
@@ -38,13 +34,9 @@ mod rustc_warn {
     pub fn rustc_lints() {
         let x = 42;
 
-        #[expect(illegal_floating_point_literal_pattern)]
+        #[expect(invalid_nan_comparisons)]
         //~^ ERROR: this lint expectation is unfulfilled
-        match x {
-            5 => {},
-            6 => {},
-            _ => {},
-        }
+        let _b = x == 5;
     }
 }