Fix dogfood lints

Author: GuillaumeGomez

clippy_lints/src/doc/too_long_first_doc_paragraph.rs

@@ -58,7 +58,9 @@ pub(super) fn check(
         }
     }
 
-    let &[first_span, .., last_span] = spans.as_slice() else { return };
+    let &[first_span, .., last_span] = spans.as_slice() else {
+        return;
+    };
 
     if should_suggest_empty_doc
         && let Some(second_span) = spans.get(1)

clippy_utils/src/lib.rs

@@ -150,6 +150,7 @@ macro_rules! extract_msrv_attr {
 
 /// If the given expression is a local binding, find the initializer expression.
 /// If that initializer expression is another local binding, find its initializer again.
+///
 /// This process repeats as long as possible (but usually no more than once). Initializer
 /// expressions with adjustments are ignored. If this is not desired, use [`find_binding_init`]
 /// instead.
@@ -180,6 +181,7 @@ pub fn expr_or_init<'a, 'b, 'tcx: 'b>(cx: &LateContext<'tcx>, mut expr: &'a Expr
 }
 
 /// Finds the initializer expression for a local binding. Returns `None` if the binding is mutable.
+///
 /// By only considering immutable bindings, we guarantee that the returned expression represents the
 /// value of the binding wherever it is referenced.
 ///
@@ -428,12 +430,12 @@ pub fn qpath_generic_tys<'tcx>(qpath: &QPath<'tcx>) -> impl Iterator<Item = &'tc
         })
 }
 
-/// THIS METHOD IS DEPRECATED and will eventually be removed since it does not match against the
+/// THIS METHOD IS DEPRECATED. Matches a `QPath` against a slice of segment string literals.
+///
+/// This method is deprecated and will eventually be removed since it does not match against the
 /// entire path or resolved `DefId`. Prefer using `match_def_path`. Consider getting a `DefId` from
 /// `QPath::Resolved.1.res.opt_def_id()`.
 ///
-/// Matches a `QPath` against a slice of segment string literals.
-///
 /// There is also `match_path` if you are dealing with a `rustc_hir::Path` instead of a
 /// `rustc_hir::QPath`.
 ///
@@ -482,12 +484,12 @@ pub fn is_path_diagnostic_item<'tcx>(
     path_def_id(cx, maybe_path).map_or(false, |id| cx.tcx.is_diagnostic_item(diag_item, id))
 }
 
-/// THIS METHOD IS DEPRECATED and will eventually be removed since it does not match against the
+/// THIS METHOD IS DEPRECATED. Matches a `Path` against a slice of segment string literals.
+///
+/// This method is deprecated and will eventually be removed since it does not match against the
 /// entire path or resolved `DefId`. Prefer using `match_def_path`. Consider getting a `DefId` from
 /// `QPath::Resolved.1.res.opt_def_id()`.
 ///
-/// Matches a `Path` against a slice of segment string literals.
-///
 /// There is also `match_qpath` if you are dealing with a `rustc_hir::QPath` instead of a
 /// `rustc_hir::Path`.
 ///
@@ -903,6 +905,7 @@ pub fn is_default_equivalent_call(cx: &LateContext<'_>, repl_func: &Expr<'_>) ->
 }
 
 /// Returns true if the expr is equal to `Default::default()` of it's type when evaluated.
+///
 /// It doesn't cover all cases, for example indirect function calls (some of std
 /// functions are supported) but it is the best we have.
 pub fn is_default_equivalent(cx: &LateContext<'_>, e: &Expr<'_>) -> bool {
@@ -1057,6 +1060,7 @@ impl std::ops::BitOrAssign for CaptureKind {
 }
 
 /// Given an expression referencing a local, determines how it would be captured in a closure.
+///
 /// Note as this will walk up to parent expressions until the capture can be determined it should
 /// only be used while making a closure somewhere a value is consumed. e.g. a block, match arm, or
 /// function argument (other than a receiver).
@@ -2359,8 +2363,9 @@ pub fn fn_def_id_with_node_args<'tcx>(
 }
 
 /// Returns `Option<String>` where String is a textual representation of the type encapsulated in
-/// the slice iff the given expression is a slice of primitives (as defined in the
-/// `is_recursively_primitive_type` function) and `None` otherwise.
+/// the slice iff the given expression is a slice of primitives.
+///
+/// (As defined in the `is_recursively_primitive_type` function.) Returns `None` otherwise.
 pub fn is_slice_of_primitives(cx: &LateContext<'_>, expr: &Expr<'_>) -> Option<String> {
     let expr_type = cx.typeck_results().expr_ty_adjusted(expr);
     let expr_kind = expr_type.kind();

clippy_utils/src/macros.rs

@@ -150,10 +150,11 @@ pub fn first_node_macro_backtrace(cx: &LateContext<'_>, node: &impl HirNode) ->
 }
 
 /// If `node` is the "first node" in a macro expansion, returns `Some` with the `ExpnId` of the
-/// macro call site (i.e. the parent of the macro expansion). This generally means that `node`
-/// is the outermost node of an entire macro expansion, but there are some caveats noted below.
-/// This is useful for finding macro calls while visiting the HIR without processing the macro call
-/// at every node within its expansion.
+/// macro call site (i.e. the parent of the macro expansion).
+///
+/// This generally means that `node` is the outermost node of an entire macro expansion, but there
+/// are some caveats noted below. This is useful for finding macro calls while visiting the HIR
+/// without processing the macro call at every node within its expansion.
 ///
 /// If you already have immediate access to the parent node, it is simpler to
 /// just check the context of that span directly (e.g. `parent.span.from_expansion()`).

clippy_utils/src/source.rs

@@ -527,9 +527,10 @@ pub fn snippet_block_with_context<'a>(
     (reindent_multiline(snip, true, indent), from_macro)
 }
 
-/// Same as `snippet_with_applicability`, but first walks the span up to the given context. This
-/// will result in the macro call, rather than the expansion, if the span is from a child context.
-/// If the span is not from a child context, it will be used directly instead.
+/// Same as `snippet_with_applicability`, but first walks the span up to the given context.
+///
+/// This will result in the macro call, rather than the expansion, if the span is from a child
+/// context. If the span is not from a child context, it will be used directly instead.
 ///
 /// e.g. Given the expression `&vec![]`, getting a snippet from the span for `vec![]` as a HIR node
 /// would result in `box []`. If given the context of the address of expression, this function will
@@ -572,9 +573,10 @@ fn snippet_with_context_sess<'a>(
 }
 
 /// Walks the span up to the target context, thereby returning the macro call site if the span is
-/// inside a macro expansion, or the original span if it is not. Note this will return `None` in the
-/// case of the span being in a macro expansion, but the target context is from expanding a macro
-/// argument.
+/// inside a macro expansion, or the original span if it is not.
+///
+/// Note this will return `None` in the case of the span being in a macro expansion, but the target
+/// context is from expanding a macro argument.
 ///
 /// Given the following
 ///

clippy_utils/src/ty.rs

@@ -160,8 +160,10 @@ pub fn get_type_diagnostic_name(cx: &LateContext<'_>, ty: Ty<'_>) -> Option<Symb
 }
 
 /// Returns true if `ty` is a type on which calling `Clone` through a function instead of
-/// as a method, such as `Arc::clone()` is considered idiomatic. Lints should avoid suggesting to
-/// replace instances of `ty::Clone()` by `.clone()` for objects of those types.
+/// as a method, such as `Arc::clone()` is considered idiomatic.
+///
+/// Lints should avoid suggesting to replace instances of `ty::Clone()` by `.clone()` for objects
+/// of those types.
 pub fn should_call_clone_as_function(cx: &LateContext<'_>, ty: Ty<'_>) -> bool {
     matches!(
         get_type_diagnostic_name(cx, ty),
@@ -398,8 +400,10 @@ fn is_normalizable_helper<'tcx>(
 }
 
 /// Returns `true` if the given type is a non aggregate primitive (a `bool` or `char`, any
-/// integer or floating-point number type). For checking aggregation of primitive types (e.g.
-/// tuples and slices of primitive type) see `is_recursively_primitive_type`
+/// integer or floating-point number type).
+///
+/// For checking aggregation of primitive types (e.g. tuples and slices of primitive type) see
+/// `is_recursively_primitive_type`
 pub fn is_non_aggregate_primitive_type(ty: Ty<'_>) -> bool {
     matches!(ty.kind(), ty::Bool | ty::Char | ty::Int(_) | ty::Uint(_) | ty::Float(_))
 }
@@ -476,9 +480,10 @@ pub fn match_type(cx: &LateContext<'_>, ty: Ty<'_>, path: &[&str]) -> bool {
     }
 }
 
-/// Checks if the drop order for a type matters. Some std types implement drop solely to
-/// deallocate memory. For these types, and composites containing them, changing the drop order
-/// won't result in any observable side effects.
+/// Checks if the drop order for a type matters.
+///
+/// Some std types implement drop solely to deallocate memory. For these types, and composites
+/// containing them, changing the drop order won't result in any observable side effects.
 pub fn needs_ordered_drop<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
     fn needs_ordered_drop_inner<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, seen: &mut FxHashSet<Ty<'tcx>>) -> bool {
         if !seen.insert(ty) {
@@ -1324,6 +1329,7 @@ pub fn deref_chain<'cx, 'tcx>(cx: &'cx LateContext<'tcx>, ty: Ty<'tcx>) -> impl
 }
 
 /// Checks if a Ty<'_> has some inherent method Symbol.
+///
 /// This does not look for impls in the type's `Deref::Target` type.
 /// If you need this, you should wrap this call in `clippy_utils::ty::deref_chain().any(...)`.
 pub fn get_adt_inherent_method<'a>(cx: &'a LateContext<'_>, ty: Ty<'_>, method_name: Symbol) -> Option<&'a AssocItem> {