Merging upstream version 1.70.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

120 files changed, 2794 insertions, 1040 deletions

diff --git a/src/tools/clippy/clippy_lints/Cargo.toml b/src/tools/clippy/clippy_lints/Cargo.toml
index 796f1ff16..18e8bf772 100644
--- a/src/tools/clippy/clippy_lints/Cargo.toml
+++ b/src/tools/clippy/clippy_lints/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clippy_lints"
-version = "0.1.69"
+version = "0.1.70"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
@@ -9,6 +9,7 @@ keywords = ["clippy", "lint", "plugin"]
 edition = "2021"
 
 [dependencies]
+arrayvec = { version = "0.7", default-features = false }
 cargo_metadata = "0.15.3"
 clippy_utils = { path = "../clippy_utils" }
 declare_clippy_lint = { path = "../declare_clippy_lint" }
diff --git a/src/tools/clippy/clippy_lints/src/allow_attributes.rs b/src/tools/clippy/clippy_lints/src/allow_attributes.rs
new file mode 100644
index 000000000..15d46e954
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/allow_attributes.rs
@@ -0,0 +1,71 @@
+use ast::AttrStyle;
+use clippy_utils::diagnostics::span_lint_and_sugg;
+use rustc_ast as ast;
+use rustc_errors::Applicability;
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+
+declare_clippy_lint! {
+    /// Detects uses of the `#[allow]` attribute and suggests replacing it with
+    /// the `#[expect]` (See [RFC 2383](https://rust-lang.github.io/rfcs/2383-lint-reasons.html))
+    ///
+    /// The expect attribute is still unstable and requires the `lint_reasons`
+    /// on nightly. It can be enabled by adding `#![feature(lint_reasons)]` to
+    /// the crate root.
+    ///
+    /// This lint only warns outer attributes (`#[allow]`), as inner attributes
+    /// (`#![allow]`) are usually used to enable or disable lints on a global scale.
+    ///
+    /// ### Why is this bad?
+    ///
+    /// `#[expect]` attributes suppress the lint emission, but emit a warning, if
+    /// the expectation is unfulfilled. This can be useful to be notified when the
+    /// lint is no longer triggered.
+    ///
+    /// ### Example
+    /// ```rust,ignore
+    /// #[allow(unused_mut)]
+    /// fn foo() -> usize {
+    ///    let mut a = Vec::new();
+    ///    a.len()
+    /// }
+    /// ```
+    /// Use instead:
+    /// ```rust,ignore
+    /// #![feature(lint_reasons)]
+    /// #[expect(unused_mut)]
+    /// fn foo() -> usize {
+    ///     let mut a = Vec::new();
+    ///     a.len()
+    /// }
+    /// ```
+    #[clippy::version = "1.69.0"]
+    pub ALLOW_ATTRIBUTES,
+    restriction,
+    "`#[allow]` will not trigger if a warning isn't found. `#[expect]` triggers if there are no warnings."
+}
+
+declare_lint_pass!(AllowAttribute => [ALLOW_ATTRIBUTES]);
+
+impl LateLintPass<'_> for AllowAttribute {
+    // Separate each crate's features.
+    fn check_attribute(&mut self, cx: &LateContext<'_>, attr: &ast::Attribute) {
+        if_chain! {
+            if cx.tcx.features().lint_reasons;
+            if let AttrStyle::Outer = attr.style;
+            if let Some(ident) = attr.ident();
+            if ident.name == rustc_span::symbol::sym::allow;
+            then {
+                span_lint_and_sugg(
+                    cx,
+                    ALLOW_ATTRIBUTES,
+                    ident.span,
+                    "#[allow] attribute found",
+                    "replace it with",
+                    "expect".into(),
+                    Applicability::MachineApplicable,
+                );
+            }
+        }
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/almost_complete_range.rs b/src/tools/clippy/clippy_lints/src/almost_complete_range.rs
index 42e14b5cd..32d80f42e 100644
--- a/src/tools/clippy/clippy_lints/src/almost_complete_range.rs
+++ b/src/tools/clippy/clippy_lints/src/almost_complete_range.rs
@@ -24,7 +24,7 @@ declare_clippy_lint! {
     /// ```rust
     /// let _ = 'a'..='z';
     /// ```
-    #[clippy::version = "1.63.0"]
+    #[clippy::version = "1.68.0"]
     pub ALMOST_COMPLETE_RANGE,
     suspicious,
     "almost complete range"
diff --git a/src/tools/clippy/clippy_lints/src/booleans.rs b/src/tools/clippy/clippy_lints/src/booleans.rs
index e8106beec..455f0df7c 100644
--- a/src/tools/clippy/clippy_lints/src/booleans.rs
+++ b/src/tools/clippy/clippy_lints/src/booleans.rs
@@ -7,7 +7,7 @@ use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::intravisit::{walk_expr, FnKind, Visitor};
 use rustc_hir::{BinOpKind, Body, Expr, ExprKind, FnDecl, UnOp};
-use rustc_lint::{LateContext, LateLintPass};
+use rustc_lint::{LateContext, LateLintPass, Level};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
@@ -430,23 +430,25 @@ impl<'a, 'tcx> NonminimalBoolVisitor<'a, 'tcx> {
                 }
             }
             let nonminimal_bool_lint = |suggestions: Vec<_>| {
-                span_lint_hir_and_then(
-                    self.cx,
-                    NONMINIMAL_BOOL,
-                    e.hir_id,
-                    e.span,
-                    "this boolean expression can be simplified",
-                    |diag| {
-                        diag.span_suggestions(
-                            e.span,
-                            "try",
-                            suggestions.into_iter(),
-                            // nonminimal_bool can produce minimal but
-                            // not human readable expressions (#3141)
-                            Applicability::Unspecified,
-                        );
-                    },
-                );
+                if self.cx.tcx.lint_level_at_node(NONMINIMAL_BOOL, e.hir_id).0 != Level::Allow {
+                    span_lint_hir_and_then(
+                        self.cx,
+                        NONMINIMAL_BOOL,
+                        e.hir_id,
+                        e.span,
+                        "this boolean expression can be simplified",
+                        |diag| {
+                            diag.span_suggestions(
+                                e.span,
+                                "try",
+                                suggestions.into_iter(),
+                                // nonminimal_bool can produce minimal but
+                                // not human readable expressions (#3141)
+                                Applicability::Unspecified,
+                            );
+                        },
+                    );
+                }
             };
             if improvements.is_empty() {
                 let mut visitor = NotSimplificationVisitor { cx: self.cx };
@@ -495,18 +497,20 @@ struct NotSimplificationVisitor<'a, 'tcx> {
 
 impl<'a, 'tcx> Visitor<'tcx> for NotSimplificationVisitor<'a, 'tcx> {
     fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
-        if let ExprKind::Unary(UnOp::Not, inner) = &expr.kind {
-            if let Some(suggestion) = simplify_not(self.cx, inner) {
-                span_lint_and_sugg(
-                    self.cx,
-                    NONMINIMAL_BOOL,
-                    expr.span,
-                    "this boolean expression can be simplified",
-                    "try",
-                    suggestion,
-                    Applicability::MachineApplicable,
-                );
-            }
+        if let ExprKind::Unary(UnOp::Not, inner) = &expr.kind &&
+            !inner.span.from_expansion() &&
+            let Some(suggestion) = simplify_not(self.cx, inner)
+			&& self.cx.tcx.lint_level_at_node(NONMINIMAL_BOOL, expr.hir_id).0 != Level::Allow
+        {
+            span_lint_and_sugg(
+                self.cx,
+                NONMINIMAL_BOOL,
+                expr.span,
+                "this boolean expression can be simplified",
+                "try",
+                suggestion,
+                Applicability::MachineApplicable,
+            );
         }
 
         walk_expr(self, expr);
diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs b/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs
index 823970e35..95c2ecbf7 100644
--- a/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs
@@ -2,8 +2,9 @@ use clippy_utils::consts::{constant, Constant};
 use clippy_utils::diagnostics::{span_lint, span_lint_and_then};
 use clippy_utils::expr_or_init;
 use clippy_utils::source::snippet;
+use clippy_utils::sugg::Sugg;
 use clippy_utils::ty::{get_discriminant_value, is_isize_or_usize};
-use rustc_errors::{Applicability, SuggestionStyle};
+use rustc_errors::{Applicability, Diagnostic, SuggestionStyle};
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{BinOpKind, Expr, ExprKind};
 use rustc_lint::LateContext;
@@ -163,19 +164,34 @@ pub(super) fn check(
         _ => return,
     };
 
-    let name_of_cast_from = snippet(cx, cast_expr.span, "..");
-    let cast_to_snip = snippet(cx, cast_to_span, "..");
-    let suggestion = format!("{cast_to_snip}::try_from({name_of_cast_from})");
-
     span_lint_and_then(cx, CAST_POSSIBLE_TRUNCATION, expr.span, &msg, |diag| {
         diag.help("if this is intentional allow the lint with `#[allow(clippy::cast_possible_truncation)]` ...");
-        diag.span_suggestion_with_style(
-            expr.span,
-            "... or use `try_from` and handle the error accordingly",
-            suggestion,
-            Applicability::Unspecified,
-            // always show the suggestion in a separate line
-            SuggestionStyle::ShowAlways,
-        );
+        if !cast_from.is_floating_point() {
+            offer_suggestion(cx, expr, cast_expr, cast_to_span, diag);
+        }
     });
 }
+
+fn offer_suggestion(
+    cx: &LateContext<'_>,
+    expr: &Expr<'_>,
+    cast_expr: &Expr<'_>,
+    cast_to_span: Span,
+    diag: &mut Diagnostic,
+) {
+    let cast_to_snip = snippet(cx, cast_to_span, "..");
+    let suggestion = if cast_to_snip == "_" {
+        format!("{}.try_into()", Sugg::hir(cx, cast_expr, "..").maybe_par())
+    } else {
+        format!("{cast_to_snip}::try_from({})", Sugg::hir(cx, cast_expr, ".."))
+    };
+
+    diag.span_suggestion_with_style(
+        expr.span,
+        "... or use `try_from` and handle the error accordingly",
+        suggestion,
+        Applicability::Unspecified,
+        // always show the suggestion in a separate line
+        SuggestionStyle::ShowAlways,
+    );
+}
diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs b/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs
index 627b795d6..1233c632a 100644
--- a/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs
@@ -1,6 +1,6 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::{match_def_path, paths};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
@@ -34,6 +34,8 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>,
         if let ExprKind::Path(ref qpath) = fun.kind;
         if let Some(fun_def_id) = cx.qpath_res(qpath, fun.hir_id).opt_def_id();
         if let Some(rpk) = raw_parts_kind(cx, fun_def_id);
+        let ctxt = expr.span.ctxt();
+        if cast_expr.span.ctxt() == ctxt;
         then {
             let func = match rpk {
                 RawPartsKind::Immutable => "from_raw_parts",
@@ -41,8 +43,8 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>,
             };
             let span = expr.span;
             let mut applicability = Applicability::MachineApplicable;
-            let ptr = snippet_with_applicability(cx, ptr_arg.span, "ptr", &mut applicability);
-            let len = snippet_with_applicability(cx, len_arg.span, "len", &mut applicability);
+            let ptr = snippet_with_context(cx, ptr_arg.span, ctxt, "ptr", &mut applicability).0;
+            let len = snippet_with_context(cx, len_arg.span, ctxt, "len", &mut applicability).0;
             span_lint_and_sugg(
                 cx,
                 CAST_SLICE_FROM_RAW_PARTS,
diff --git a/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs b/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs
index e8531157e..a8926b29a 100644
--- a/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs
+++ b/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs
@@ -143,7 +143,7 @@ impl<'tcx> LateLintPass<'tcx> for CognitiveComplexity {
         span: Span,
         def_id: LocalDefId,
     ) {
-        if !cx.tcx.has_attr(def_id.to_def_id(), sym::test) {
+        if !cx.tcx.has_attr(def_id, sym::test) {
             let expr = if is_async_fn(kind) {
                 match get_async_fn_body(cx.tcx, body) {
                     Some(b) => b,
diff --git a/src/tools/clippy/clippy_lints/src/collection_is_never_read.rs b/src/tools/clippy/clippy_lints/src/collection_is_never_read.rs
new file mode 100644
index 000000000..5e2eb5789
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/collection_is_never_read.rs
@@ -0,0 +1,141 @@
+use clippy_utils::diagnostics::span_lint;
+use clippy_utils::ty::{is_type_diagnostic_item, is_type_lang_item};
+use clippy_utils::visitors::for_each_expr_with_closures;
+use clippy_utils::{get_enclosing_block, get_parent_node, path_to_local_id};
+use core::ops::ControlFlow;
+use rustc_hir::{Block, ExprKind, HirId, LangItem, Local, Node, PatKind};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::symbol::sym;
+use rustc_span::Symbol;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks for collections that are never queried.
+    ///
+    /// ### Why is this bad?
+    /// Putting effort into constructing a collection but then never querying it might indicate that
+    /// the author forgot to do whatever they intended to do with the collection. Example: Clone
+    /// a vector, sort it for iteration, but then mistakenly iterate the original vector
+    /// instead.
+    ///
+    /// ### Example
+    /// ```rust
+    /// # let samples = vec![3, 1, 2];
+    /// let mut sorted_samples = samples.clone();
+    /// sorted_samples.sort();
+    /// for sample in &samples { // Oops, meant to use `sorted_samples`.
+    ///     println!("{sample}");
+    /// }
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// # let samples = vec![3, 1, 2];
+    /// let mut sorted_samples = samples.clone();
+    /// sorted_samples.sort();
+    /// for sample in &sorted_samples {
+    ///     println!("{sample}");
+    /// }
+    /// ```
+    #[clippy::version = "1.69.0"]
+    pub COLLECTION_IS_NEVER_READ,
+    nursery,
+    "a collection is never queried"
+}
+declare_lint_pass!(CollectionIsNeverRead => [COLLECTION_IS_NEVER_READ]);
+
+// Add `String` here when it is added to diagnostic items
+static COLLECTIONS: [Symbol; 9] = [
+    sym::BTreeMap,
+    sym::BTreeSet,
+    sym::BinaryHeap,
+    sym::HashMap,
+    sym::HashSet,
+    sym::LinkedList,
+    sym::Option,
+    sym::Vec,
+    sym::VecDeque,
+];
+
+impl<'tcx> LateLintPass<'tcx> for CollectionIsNeverRead {
+    fn check_local(&mut self, cx: &LateContext<'tcx>, local: &'tcx Local<'tcx>) {
+        // Look for local variables whose type is a container. Search surrounding bock for read access.
+        if match_acceptable_type(cx, local, &COLLECTIONS)
+            && let PatKind::Binding(_, local_id, _, _) = local.pat.kind
+            && let Some(enclosing_block) = get_enclosing_block(cx, local.hir_id)
+            && has_no_read_access(cx, local_id, enclosing_block)
+        {
+            span_lint(cx, COLLECTION_IS_NEVER_READ, local.span, "collection is never read");
+        }
+    }
+}
+
+fn match_acceptable_type(cx: &LateContext<'_>, local: &Local<'_>, collections: &[rustc_span::Symbol]) -> bool {
+    let ty = cx.typeck_results().pat_ty(local.pat);
+    collections.iter().any(|&sym| is_type_diagnostic_item(cx, ty, sym))
+    // String type is a lang item but not a diagnostic item for now so we need a separate check
+        || is_type_lang_item(cx, ty, LangItem::String)
+}
+
+fn has_no_read_access<'tcx>(cx: &LateContext<'tcx>, id: HirId, block: &'tcx Block<'tcx>) -> bool {
+    let mut has_access = false;
+    let mut has_read_access = false;
+
+    // Inspect all expressions and sub-expressions in the block.
+    for_each_expr_with_closures(cx, block, |expr| {
+        // Ignore expressions that are not simply `id`.
+        if !path_to_local_id(expr, id) {
+            return ControlFlow::Continue(());
+        }
+
+        // `id` is being accessed. Investigate if it's a read access.
+        has_access = true;
+
+        // `id` appearing in the left-hand side of an assignment is not a read access:
+        //
+        // id = ...; // Not reading `id`.
+        if let Some(Node::Expr(parent)) = get_parent_node(cx.tcx, expr.hir_id)
+            && let ExprKind::Assign(lhs, ..) = parent.kind
+            && path_to_local_id(lhs, id)
+        {
+            return ControlFlow::Continue(());
+        }
+
+        // Look for method call with receiver `id`. It might be a non-read access:
+        //
+        // id.foo(args)
+        //
+        // Only assuming this for "official" methods defined on the type. For methods defined in extension
+        // traits (identified as local, based on the orphan rule), pessimistically assume that they might
+        // have side effects, so consider them a read.
+        if let Some(Node::Expr(parent)) = get_parent_node(cx.tcx, expr.hir_id)
+            && let ExprKind::MethodCall(_, receiver, _, _) = parent.kind
+            && path_to_local_id(receiver, id)
+            && let Some(method_def_id) = cx.typeck_results().type_dependent_def_id(parent.hir_id)
+            && !method_def_id.is_local()
+        {
+            // The method call is a statement, so the return value is not used. That's not a read access:
+            //
+            // id.foo(args);
+            if let Some(Node::Stmt(..)) = get_parent_node(cx.tcx, parent.hir_id) {
+                return ControlFlow::Continue(());
+            }
+
+            // The method call is not a statement, so its return value is used somehow but its type is the
+            // unit type, so this is not a real read access. Examples:
+            //
+            // let y = x.clear();
+            // println!("{:?}", x.clear());
+            if cx.typeck_results().expr_ty(parent).is_unit() {
+                return ControlFlow::Continue(());
+            }
+        }
+
+        // Any other access to `id` is a read access. Stop searching.
+        has_read_access = true;
+        ControlFlow::Break(())
+    });
+
+    // Ignore collections that have no access at all. Other lints should catch them.
+    has_access && !has_read_access
+}
diff --git a/src/tools/clippy/clippy_lints/src/copies.rs b/src/tools/clippy/clippy_lints/src/copies.rs
index f10c35cde..970f50049 100644
--- a/src/tools/clippy/clippy_lints/src/copies.rs
+++ b/src/tools/clippy/clippy_lints/src/copies.rs
@@ -1,18 +1,20 @@
 use clippy_utils::diagnostics::{span_lint_and_note, span_lint_and_then};
 use clippy_utils::source::{first_line_of_span, indent_of, reindent_multiline, snippet, snippet_opt};
-use clippy_utils::ty::needs_ordered_drop;
+use clippy_utils::ty::{is_interior_mut_ty, needs_ordered_drop};
 use clippy_utils::visitors::for_each_expr;
 use clippy_utils::{
-    capture_local_usage, eq_expr_value, get_enclosing_block, hash_expr, hash_stmt, if_sequence, is_else_clause,
-    is_lint_allowed, path_to_local, search_same, ContainsName, HirEqInterExpr, SpanlessEq,
+    capture_local_usage, def_path_def_ids, eq_expr_value, find_binding_init, get_enclosing_block, hash_expr, hash_stmt,
+    if_sequence, is_else_clause, is_lint_allowed, path_to_local, search_same, ContainsName, HirEqInterExpr, SpanlessEq,
 };
 use core::iter;
 use core::ops::ControlFlow;
 use rustc_errors::Applicability;
+use rustc_hir::def_id::DefIdSet;
 use rustc_hir::intravisit;
 use rustc_hir::{BinOpKind, Block, Expr, ExprKind, HirId, HirIdSet, Stmt, StmtKind};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_middle::query::Key;
+use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::hygiene::walk_chain;
 use rustc_span::source_map::SourceMap;
 use rustc_span::{BytePos, Span, Symbol};
@@ -159,7 +161,21 @@ declare_clippy_lint! {
     "`if` statement with shared code in all blocks"
 }
 
-declare_lint_pass!(CopyAndPaste => [
+pub struct CopyAndPaste {
+    ignore_interior_mutability: Vec<String>,
+    ignored_ty_ids: DefIdSet,
+}
+
+impl CopyAndPaste {
+    pub fn new(ignore_interior_mutability: Vec<String>) -> Self {
+        Self {
+            ignore_interior_mutability,
+            ignored_ty_ids: DefIdSet::new(),
+        }
+    }
+}
+
+impl_lint_pass!(CopyAndPaste => [
     IFS_SAME_COND,
     SAME_FUNCTIONS_IN_IF_CONDITION,
     IF_SAME_THEN_ELSE,
@@ -167,10 +183,18 @@ declare_lint_pass!(CopyAndPaste => [
 ]);
 
 impl<'tcx> LateLintPass<'tcx> for CopyAndPaste {
+    fn check_crate(&mut self, cx: &LateContext<'tcx>) {
+        for ignored_ty in &self.ignore_interior_mutability {
+            let path: Vec<&str> = ignored_ty.split("::").collect();
+            for id in def_path_def_ids(cx, path.as_slice()) {
+                self.ignored_ty_ids.insert(id);
+            }
+        }
+    }
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
         if !expr.span.from_expansion() && matches!(expr.kind, ExprKind::If(..)) && !is_else_clause(cx.tcx, expr) {
             let (conds, blocks) = if_sequence(expr);
-            lint_same_cond(cx, &conds);
+            lint_same_cond(cx, &conds, &self.ignored_ty_ids);
             lint_same_fns_in_if_cond(cx, &conds);
             let all_same =
                 !is_lint_allowed(cx, IF_SAME_THEN_ELSE, expr.hir_id) && lint_if_same_then_else(cx, &conds, &blocks);
@@ -547,9 +571,39 @@ fn check_for_warn_of_moved_symbol(cx: &LateContext<'_>, symbols: &[(HirId, Symbo
     })
 }
 
+fn method_caller_is_mutable(cx: &LateContext<'_>, caller_expr: &Expr<'_>, ignored_ty_ids: &DefIdSet) -> bool {
+    let caller_ty = cx.typeck_results().expr_ty(caller_expr);
+    // Check if given type has inner mutability and was not set to ignored by the configuration
+    let is_inner_mut_ty = is_interior_mut_ty(cx, caller_ty)
+        && !matches!(caller_ty.ty_adt_id(), Some(adt_id) if ignored_ty_ids.contains(&adt_id));
+
+    is_inner_mut_ty
+        || caller_ty.is_mutable_ptr()
+        // `find_binding_init` will return the binding iff its not mutable
+        || path_to_local(caller_expr)
+            .and_then(|hid| find_binding_init(cx, hid))
+            .is_none()
+}
+
 /// Implementation of `IFS_SAME_COND`.
-fn lint_same_cond(cx: &LateContext<'_>, conds: &[&Expr<'_>]) {
-    for (i, j) in search_same(conds, |e| hash_expr(cx, e), |lhs, rhs| eq_expr_value(cx, lhs, rhs)) {
+fn lint_same_cond(cx: &LateContext<'_>, conds: &[&Expr<'_>], ignored_ty_ids: &DefIdSet) {
+    for (i, j) in search_same(
+        conds,
+        |e| hash_expr(cx, e),
+        |lhs, rhs| {
+            // Ignore eq_expr side effects iff one of the expressin kind is a method call
+            // and the caller is not a mutable, including inner mutable type.
+            if let ExprKind::MethodCall(_, caller, _, _) = lhs.kind {
+                if method_caller_is_mutable(cx, caller, ignored_ty_ids) {
+                    false
+                } else {
+                    SpanlessEq::new(cx).eq_expr(lhs, rhs)
+                }
+            } else {
+                eq_expr_value(cx, lhs, rhs)
+            }
+        },
+    ) {
         span_lint_and_note(
             cx,
             IFS_SAME_COND,
diff --git a/src/tools/clippy/clippy_lints/src/declared_lints.rs b/src/tools/clippy/clippy_lints/src/declared_lints.rs
index cd5dd7a57..f24dab627 100644
--- a/src/tools/clippy/clippy_lints/src/declared_lints.rs
+++ b/src/tools/clippy/clippy_lints/src/declared_lints.rs
@@ -35,6 +35,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::utils::internal_lints::produce_ice::PRODUCE_ICE_INFO,
     #[cfg(feature = "internal")]
     crate::utils::internal_lints::unnecessary_def_path::UNNECESSARY_DEF_PATH_INFO,
+    crate::allow_attributes::ALLOW_ATTRIBUTES_INFO,
     crate::almost_complete_range::ALMOST_COMPLETE_RANGE_INFO,
     crate::approx_const::APPROX_CONSTANT_INFO,
     crate::as_conversions::AS_CONVERSIONS_INFO,
@@ -92,6 +93,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::cognitive_complexity::COGNITIVE_COMPLEXITY_INFO,
     crate::collapsible_if::COLLAPSIBLE_ELSE_IF_INFO,
     crate::collapsible_if::COLLAPSIBLE_IF_INFO,
+    crate::collection_is_never_read::COLLECTION_IS_NEVER_READ_INFO,
     crate::comparison_chain::COMPARISON_CHAIN_INFO,
     crate::copies::BRANCHES_SHARING_CODE_INFO,
     crate::copies::IFS_SAME_COND_INFO,
@@ -216,6 +218,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::iter_not_returning_iterator::ITER_NOT_RETURNING_ITERATOR_INFO,
     crate::large_const_arrays::LARGE_CONST_ARRAYS_INFO,
     crate::large_enum_variant::LARGE_ENUM_VARIANT_INFO,
+    crate::large_futures::LARGE_FUTURES_INFO,
     crate::large_include_file::LARGE_INCLUDE_FILE_INFO,
     crate::large_stack_arrays::LARGE_STACK_ARRAYS_INFO,
     crate::len_zero::COMPARISON_TO_EMPTY_INFO,
@@ -226,8 +229,10 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::let_underscore::LET_UNDERSCORE_LOCK_INFO,
     crate::let_underscore::LET_UNDERSCORE_MUST_USE_INFO,
     crate::let_underscore::LET_UNDERSCORE_UNTYPED_INFO,
+    crate::let_with_type_underscore::LET_WITH_TYPE_UNDERSCORE_INFO,
     crate::lifetimes::EXTRA_UNUSED_LIFETIMES_INFO,
     crate::lifetimes::NEEDLESS_LIFETIMES_INFO,
+    crate::lines_filter_map_ok::LINES_FILTER_MAP_OK_INFO,
     crate::literal_representation::DECIMAL_LITERAL_REPRESENTATION_INFO,
     crate::literal_representation::INCONSISTENT_DIGIT_GROUPING_INFO,
     crate::literal_representation::LARGE_DIGIT_GROUPS_INFO,
@@ -260,9 +265,11 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::manual_clamp::MANUAL_CLAMP_INFO,
     crate::manual_is_ascii_check::MANUAL_IS_ASCII_CHECK_INFO,
     crate::manual_let_else::MANUAL_LET_ELSE_INFO,
+    crate::manual_main_separator_str::MANUAL_MAIN_SEPARATOR_STR_INFO,
     crate::manual_non_exhaustive::MANUAL_NON_EXHAUSTIVE_INFO,
     crate::manual_rem_euclid::MANUAL_REM_EUCLID_INFO,
     crate::manual_retain::MANUAL_RETAIN_INFO,
+    crate::manual_slice_size_calculation::MANUAL_SLICE_SIZE_CALCULATION_INFO,
     crate::manual_string_new::MANUAL_STRING_NEW_INFO,
     crate::manual_strip::MANUAL_STRIP_INFO,
     crate::map_unit_fn::OPTION_MAP_UNIT_FN_INFO,
@@ -303,6 +310,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::methods::CASE_SENSITIVE_FILE_EXTENSION_COMPARISONS_INFO,
     crate::methods::CHARS_LAST_CMP_INFO,
     crate::methods::CHARS_NEXT_CMP_INFO,
+    crate::methods::CLEAR_WITH_DRAIN_INFO,
     crate::methods::CLONED_INSTEAD_OF_COPIED_INFO,
     crate::methods::CLONE_DOUBLE_REF_INFO,
     crate::methods::CLONE_ON_COPY_INFO,
@@ -416,6 +424,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::misc_early::UNSEPARATED_LITERAL_SUFFIX_INFO,
     crate::misc_early::ZERO_PREFIXED_LITERAL_INFO,
     crate::mismatching_type_param_order::MISMATCHING_TYPE_PARAM_ORDER_INFO,
+    crate::missing_assert_message::MISSING_ASSERT_MESSAGE_INFO,
     crate::missing_const_for_fn::MISSING_CONST_FOR_FN_INFO,
     crate::missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS_INFO,
     crate::missing_enforced_import_rename::MISSING_ENFORCED_IMPORT_RENAMES_INFO,
@@ -517,6 +526,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::ranges::REVERSED_EMPTY_RANGES_INFO,
     crate::rc_clone_in_vec_init::RC_CLONE_IN_VEC_INIT_INFO,
     crate::read_zero_byte_vec::READ_ZERO_BYTE_VEC_INFO,
+    crate::redundant_async_block::REDUNDANT_ASYNC_BLOCK_INFO,
     crate::redundant_clone::REDUNDANT_CLONE_INFO,
     crate::redundant_closure_call::REDUNDANT_CLOSURE_CALL_INFO,
     crate::redundant_else::REDUNDANT_ELSE_INFO,
@@ -559,6 +569,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::strings::STR_TO_STRING_INFO,
     crate::strings::TRIM_SPLIT_WHITESPACE_INFO,
     crate::strlen_on_c_strings::STRLEN_ON_C_STRINGS_INFO,
+    crate::suspicious_doc_comments::SUSPICIOUS_DOC_COMMENTS_INFO,
     crate::suspicious_operation_groupings::SUSPICIOUS_OPERATION_GROUPINGS_INFO,
     crate::suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL_INFO,
     crate::suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL_INFO,
@@ -568,6 +579,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::swap_ptr_to_ref::SWAP_PTR_TO_REF_INFO,
     crate::tabs_in_doc_comments::TABS_IN_DOC_COMMENTS_INFO,
     crate::temporary_assignment::TEMPORARY_ASSIGNMENT_INFO,
+    crate::tests_outside_test_module::TESTS_OUTSIDE_TEST_MODULE_INFO,
     crate::to_digit_is_some::TO_DIGIT_IS_SOME_INFO,
     crate::trailing_empty_array::TRAILING_EMPTY_ARRAY_INFO,
     crate::trait_bounds::TRAIT_DUPLICATION_IN_BOUNDS_INFO,
@@ -610,8 +622,10 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::unit_types::UNIT_CMP_INFO,
     crate::unnamed_address::FN_ADDRESS_COMPARISONS_INFO,
     crate::unnamed_address::VTABLE_ADDRESS_COMPARISONS_INFO,
+    crate::unnecessary_box_returns::UNNECESSARY_BOX_RETURNS_INFO,
     crate::unnecessary_owned_empty_strings::UNNECESSARY_OWNED_EMPTY_STRINGS_INFO,
     crate::unnecessary_self_imports::UNNECESSARY_SELF_IMPORTS_INFO,
+    crate::unnecessary_struct_initialization::UNNECESSARY_STRUCT_INITIALIZATION_INFO,
     crate::unnecessary_wraps::UNNECESSARY_WRAPS_INFO,
     crate::unnested_or_patterns::UNNESTED_OR_PATTERNS_INFO,
     crate::unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME_INFO,
diff --git a/src/tools/clippy/clippy_lints/src/default.rs b/src/tools/clippy/clippy_lints/src/default.rs
index 080d44e63..80c22742b 100644
--- a/src/tools/clippy/clippy_lints/src/default.rs
+++ b/src/tools/clippy/clippy_lints/src/default.rs
@@ -1,5 +1,5 @@
 use clippy_utils::diagnostics::{span_lint_and_note, span_lint_and_sugg};
-use clippy_utils::source::snippet_with_macro_callsite;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::ty::{has_drop, is_copy};
 use clippy_utils::{
     any_parent_is_automatically_derived, contains_name, get_parent_expr, is_from_proc_macro, match_def_path, paths,
@@ -160,6 +160,8 @@ impl<'tcx> LateLintPass<'tcx> for Default {
                 }
             };
 
+            let init_ctxt = local.span.ctxt();
+
             // find all "later statement"'s where the fields of the binding set as
             // Default::default() get reassigned, unless the reassignment refers to the original binding
             let mut first_assign = None;
@@ -169,7 +171,7 @@ impl<'tcx> LateLintPass<'tcx> for Default {
                 // find out if and which field was set by this `consecutive_statement`
                 if let Some((field_ident, assign_rhs)) = field_reassigned_by_stmt(consecutive_statement, binding_name) {
                     // interrupt and cancel lint if assign_rhs references the original binding
-                    if contains_name(binding_name, assign_rhs, cx) {
+                    if contains_name(binding_name, assign_rhs, cx) || init_ctxt != consecutive_statement.span.ctxt() {
                         cancel_lint = true;
                         break;
                     }
@@ -204,11 +206,12 @@ impl<'tcx> LateLintPass<'tcx> for Default {
                     .iter()
                     .all(|field| assigned_fields.iter().any(|(a, _)| a == &field.name));
 
+                let mut app = Applicability::Unspecified;
                 let field_list = assigned_fields
                     .into_iter()
                     .map(|(field, rhs)| {
                         // extract and store the assigned value for help message
-                        let value_snippet = snippet_with_macro_callsite(cx, rhs.span, "..");
+                        let value_snippet = snippet_with_context(cx, rhs.span, init_ctxt, "..", &mut app).0;
                         format!("{field}: {value_snippet}")
                     })
                     .collect::<Vec<String>>()
diff --git a/src/tools/clippy/clippy_lints/src/default_instead_of_iter_empty.rs b/src/tools/clippy/clippy_lints/src/default_instead_of_iter_empty.rs
index 1ad929864..f296b80d2 100644
--- a/src/tools/clippy/clippy_lints/src/default_instead_of_iter_empty.rs
+++ b/src/tools/clippy/clippy_lints/src/default_instead_of_iter_empty.rs
@@ -1,11 +1,12 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::last_path_segment;
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::{match_def_path, paths};
 use rustc_errors::Applicability;
 use rustc_hir::{def, Expr, ExprKind, GenericArg, QPath, TyKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::SyntaxContext;
 
 declare_clippy_lint! {
     /// ### What it does
@@ -38,9 +39,11 @@ impl<'tcx> LateLintPass<'tcx> for DefaultIterEmpty {
             && let QPath::Resolved(None, path) = ty_path
             && let def::Res::Def(_, def_id) = &path.res
             && match_def_path(cx, *def_id, &paths::ITER_EMPTY)
+            && let ctxt = expr.span.ctxt()
+            && ty.span.ctxt() == ctxt
         {
             let mut applicability = Applicability::MachineApplicable;
-            let sugg = make_sugg(cx, ty_path, &mut applicability);
+            let sugg = make_sugg(cx, ty_path, ctxt, &mut applicability);
             span_lint_and_sugg(
                 cx,
                 DEFAULT_INSTEAD_OF_ITER_EMPTY,
@@ -54,14 +57,19 @@ impl<'tcx> LateLintPass<'tcx> for DefaultIterEmpty {
     }
 }
 
-fn make_sugg(cx: &LateContext<'_>, ty_path: &rustc_hir::QPath<'_>, applicability: &mut Applicability) -> String {
+fn make_sugg(
+    cx: &LateContext<'_>,
+    ty_path: &rustc_hir::QPath<'_>,
+    ctxt: SyntaxContext,
+    applicability: &mut Applicability,
+) -> String {
     if let Some(last) = last_path_segment(ty_path).args
         && let Some(iter_ty) = last.args.iter().find_map(|arg| match arg {
             GenericArg::Type(ty) => Some(ty),
             _ => None,
         })
     {
-        format!("std::iter::empty::<{}>()", snippet_with_applicability(cx, iter_ty.span, "..", applicability))
+        format!("std::iter::empty::<{}>()", snippet_with_context(cx, iter_ty.span, ctxt, "..", applicability).0)
     } else {
         "std::iter::empty()".to_owned()
     }
diff --git a/src/tools/clippy/clippy_lints/src/derivable_impls.rs b/src/tools/clippy/clippy_lints/src/derivable_impls.rs
index f95b8ccf0..8f68f90a2 100644
--- a/src/tools/clippy/clippy_lints/src/derivable_impls.rs
+++ b/src/tools/clippy/clippy_lints/src/derivable_impls.rs
@@ -8,7 +8,7 @@ use rustc_hir::{
     Body, Expr, ExprKind, GenericArg, Impl, ImplItemKind, Item, ItemKind, Node, PathSegment, QPath, Ty, TyKind,
 };
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::{AdtDef, DefIdTree};
+use rustc_middle::ty::{Adt, AdtDef, SubstsRef};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::sym;
 
@@ -81,13 +81,18 @@ fn check_struct<'tcx>(
     self_ty: &Ty<'_>,
     func_expr: &Expr<'_>,
     adt_def: AdtDef<'_>,
+    substs: SubstsRef<'_>,
 ) {
     if let TyKind::Path(QPath::Resolved(_, p)) = self_ty.kind {
-        if let Some(PathSegment { args: Some(a), .. }) = p.segments.last() {
-            for arg in a.args {
-                if !matches!(arg, GenericArg::Lifetime(_)) {
-                    return;
-                }
+        if let Some(PathSegment { args, .. }) = p.segments.last() {
+            let args = args.map(|a| a.args).unwrap_or(&[]);
+
+            // substs contains the generic parameters of the type declaration, while args contains the arguments
+            // used at instantiation time. If both len are not equal, it means that some parameters were not
+            // provided (which means that the default values were used); in this case we will not risk
+            // suggesting too broad a rewrite. We won't either if any argument is a type or a const.
+            if substs.len() != args.len() || args.iter().any(|arg| !matches!(arg, GenericArg::Lifetime(_))) {
+                return;
             }
         }
     }
@@ -176,7 +181,7 @@ impl<'tcx> LateLintPass<'tcx> for DerivableImpls {
                 self_ty,
                 ..
             }) = item.kind;
-            if !cx.tcx.has_attr(item.owner_id.to_def_id(), sym::automatically_derived);
+            if !cx.tcx.has_attr(item.owner_id, sym::automatically_derived);
             if !item.span.from_expansion();
             if let Some(def_id) = trait_ref.trait_def_id();
             if cx.tcx.is_diagnostic_item(sym::Default, def_id);
@@ -184,7 +189,7 @@ impl<'tcx> LateLintPass<'tcx> for DerivableImpls {
             if let Some(Node::ImplItem(impl_item)) = cx.tcx.hir().find(impl_item_hir);
             if let ImplItemKind::Fn(_, b) = &impl_item.kind;
             if let Body { value: func_expr, .. } = cx.tcx.hir().body(*b);
-            if let Some(adt_def) = cx.tcx.type_of(item.owner_id).subst_identity().ty_adt_def();
+            if let &Adt(adt_def, substs) = cx.tcx.type_of(item.owner_id).subst_identity().kind();
             if let attrs = cx.tcx.hir().attrs(item.hir_id());
             if !attrs.iter().any(|attr| attr.doc_str().is_some());
             if let child_attrs = cx.tcx.hir().attrs(impl_item_hir);
@@ -192,7 +197,7 @@ impl<'tcx> LateLintPass<'tcx> for DerivableImpls {
 
             then {
                 if adt_def.is_struct() {
-                    check_struct(cx, item, self_ty, func_expr, adt_def);
+                    check_struct(cx, item, self_ty, func_expr, adt_def, substs);
                 } else if adt_def.is_enum() && self.msrv.meets(msrvs::DEFAULT_ENUM_ATTRIBUTE) {
                     check_enum(cx, item, func_expr, adt_def);
                 }
diff --git a/src/tools/clippy/clippy_lints/src/derive.rs b/src/tools/clippy/clippy_lints/src/derive.rs
index b8428d66a..f425dd5fb 100644
--- a/src/tools/clippy/clippy_lints/src/derive.rs
+++ b/src/tools/clippy/clippy_lints/src/derive.rs
@@ -24,8 +24,8 @@ use rustc_span::sym;
 
 declare_clippy_lint! {
     /// ### What it does
-    /// Checks for deriving `Hash` but implementing `PartialEq`
-    /// explicitly or vice versa.
+    /// Lints against manual `PartialEq` implementations for types with a derived `Hash`
+    /// implementation.
     ///
     /// ### Why is this bad?
     /// The implementation of these traits must agree (for
@@ -54,8 +54,8 @@ declare_clippy_lint! {
 
 declare_clippy_lint! {
     /// ### What it does
-    /// Checks for deriving `Ord` but implementing `PartialOrd`
-    /// explicitly or vice versa.
+    /// Lints against manual `PartialOrd` and `Ord` implementations for types with a derived `Ord`
+    /// or `PartialOrd` implementation.
     ///
     /// ### Why is this bad?
     /// The implementation of these traits must agree (for
@@ -212,7 +212,7 @@ impl<'tcx> LateLintPass<'tcx> for Derive {
         }) = item.kind
         {
             let ty = cx.tcx.type_of(item.owner_id).subst_identity();
-            let is_automatically_derived = cx.tcx.has_attr(item.owner_id.to_def_id(), sym::automatically_derived);
+            let is_automatically_derived = cx.tcx.has_attr(item.owner_id, sym::automatically_derived);
 
             check_hash_peq(cx, item.span, trait_ref, ty, is_automatically_derived);
             check_ord_partial_ord(cx, item.span, trait_ref, ty, is_automatically_derived);
diff --git a/src/tools/clippy/clippy_lints/src/disallowed_script_idents.rs b/src/tools/clippy/clippy_lints/src/disallowed_script_idents.rs
index 084190f00..c9fad98e4 100644
--- a/src/tools/clippy/clippy_lints/src/disallowed_script_idents.rs
+++ b/src/tools/clippy/clippy_lints/src/disallowed_script_idents.rs
@@ -32,7 +32,7 @@ declare_clippy_lint! {
     /// ### Example
     /// ```rust
     /// // Assuming that `clippy.toml` contains the following line:
-    /// // allowed-locales = ["Latin", "Cyrillic"]
+    /// // allowed-scripts = ["Latin", "Cyrillic"]
     /// let counter = 10; // OK, latin is allowed.
     /// let счётчик = 10; // OK, cyrillic is allowed.
     /// let zähler = 10; // OK, it's still latin.
diff --git a/src/tools/clippy/clippy_lints/src/exit.rs b/src/tools/clippy/clippy_lints/src/exit.rs
index 9c8b0d076..8ba6a9e48 100644
--- a/src/tools/clippy/clippy_lints/src/exit.rs
+++ b/src/tools/clippy/clippy_lints/src/exit.rs
@@ -11,7 +11,7 @@ declare_clippy_lint! {
     ///
     /// ### Why is this bad?
     /// Exit terminates the program at the location it is called. For unrecoverable
-    /// errors `panics` should be used to provide a stacktrace and potentualy other
+    /// errors `panics` should be used to provide a stacktrace and potentially other
     /// information. A normal termination or one with an error code should happen in
     /// the main function.
     ///
diff --git a/src/tools/clippy/clippy_lints/src/explicit_write.rs b/src/tools/clippy/clippy_lints/src/explicit_write.rs
index c0ea6f338..315df6c71 100644
--- a/src/tools/clippy/clippy_lints/src/explicit_write.rs
+++ b/src/tools/clippy/clippy_lints/src/explicit_write.rs
@@ -1,5 +1,5 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::macros::FormatArgsExpn;
+use clippy_utils::macros::{find_format_args, format_args_inputs_span};
 use clippy_utils::source::snippet_with_applicability;
 use clippy_utils::{is_expn_of, match_function_call, paths};
 use if_chain::if_chain;
@@ -8,7 +8,7 @@ use rustc_hir::def::Res;
 use rustc_hir::{BindingAnnotation, Block, BlockCheckMode, Expr, ExprKind, Node, PatKind, QPath, Stmt, StmtKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
-use rustc_span::sym;
+use rustc_span::{sym, ExpnId};
 
 declare_clippy_lint! {
     /// ### What it does
@@ -43,23 +43,22 @@ declare_lint_pass!(ExplicitWrite => [EXPLICIT_WRITE]);
 
 impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
-        if_chain! {
-            // match call to unwrap
-            if let ExprKind::MethodCall(unwrap_fun, write_call, [], _) = expr.kind;
-            if unwrap_fun.ident.name == sym::unwrap;
+        // match call to unwrap
+        if let ExprKind::MethodCall(unwrap_fun, write_call, [], _) = expr.kind
+            && unwrap_fun.ident.name == sym::unwrap
             // match call to write_fmt
-            if let ExprKind::MethodCall(write_fun, write_recv, [write_arg], _) = look_in_block(cx, &write_call.kind);
-            if write_fun.ident.name == sym!(write_fmt);
+            && let ExprKind::MethodCall(write_fun, write_recv, [write_arg], _) = look_in_block(cx, &write_call.kind)
+            && write_fun.ident.name == sym!(write_fmt)
             // match calls to std::io::stdout() / std::io::stderr ()
-            if let Some(dest_name) = if match_function_call(cx, write_recv, &paths::STDOUT).is_some() {
+            && let Some(dest_name) = if match_function_call(cx, write_recv, &paths::STDOUT).is_some() {
                 Some("stdout")
             } else if match_function_call(cx, write_recv, &paths::STDERR).is_some() {
                 Some("stderr")
             } else {
                 None
-            };
-            if let Some(format_args) = FormatArgsExpn::parse(cx, write_arg);
-            then {
+            }
+        {
+            find_format_args(cx, write_arg, ExpnId::root(), |format_args| {
                 let calling_macro =
                     // ordering is important here, since `writeln!` uses `write!` internally
                     if is_expn_of(write_call.span, "writeln").is_some() {
@@ -92,7 +91,7 @@ impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
                 let mut applicability = Applicability::MachineApplicable;
                 let inputs_snippet = snippet_with_applicability(
                     cx,
-                    format_args.inputs_span(),
+                    format_args_inputs_span(format_args),
                     "..",
                     &mut applicability,
                 );
@@ -104,8 +103,8 @@ impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
                     "try this",
                     format!("{prefix}{sugg_mac}!({inputs_snippet})"),
                     applicability,
-                )
-            }
+                );
+            });
         }
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/extra_unused_type_parameters.rs b/src/tools/clippy/clippy_lints/src/extra_unused_type_parameters.rs
index 20565e1d2..eeb4de8b5 100644
--- a/src/tools/clippy/clippy_lints/src/extra_unused_type_parameters.rs
+++ b/src/tools/clippy/clippy_lints/src/extra_unused_type_parameters.rs
@@ -1,10 +1,10 @@
-use clippy_utils::diagnostics::span_lint_and_help;
+use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_then};
 use clippy_utils::trait_ref_of_method;
-use rustc_data_structures::fx::FxHashMap;
-use rustc_errors::MultiSpan;
+use rustc_data_structures::fx::{FxHashMap, FxHashSet};
+use rustc_errors::Applicability;
 use rustc_hir::intravisit::{walk_impl_item, walk_item, walk_param_bound, walk_ty, Visitor};
 use rustc_hir::{
-    BodyId, ExprKind, GenericBound, GenericParamKind, Generics, ImplItem, ImplItemKind, Item, ItemKind,
+    BodyId, ExprKind, GenericBound, GenericParam, GenericParamKind, Generics, ImplItem, ImplItemKind, Item, ItemKind,
     PredicateOrigin, Ty, TyKind, WherePredicate,
 };
 use rustc_lint::{LateContext, LateLintPass, LintContext};
@@ -53,13 +53,19 @@ impl ExtraUnusedTypeParameters {
         }
     }
 
-    /// Don't lint external macros or functions with empty bodies. Also, don't lint public items if
-    /// the `avoid_breaking_exported_api` config option is set.
-    fn check_false_positive(&self, cx: &LateContext<'_>, span: Span, def_id: LocalDefId, body_id: BodyId) -> bool {
+    /// Don't lint external macros or functions with empty bodies. Also, don't lint exported items
+    /// if the `avoid_breaking_exported_api` config option is set.
+    fn is_empty_exported_or_macro(
+        &self,
+        cx: &LateContext<'_>,
+        span: Span,
+        def_id: LocalDefId,
+        body_id: BodyId,
+    ) -> bool {
         let body = cx.tcx.hir().body(body_id).value;
         let fn_empty = matches!(&body.kind, ExprKind::Block(blk, None) if blk.stmts.is_empty() && blk.expr.is_none());
         let is_exported = cx.effective_visibilities.is_exported(def_id);
-        in_external_macro(cx.sess(), span) || (self.avoid_breaking_exported_api && is_exported) || fn_empty
+        in_external_macro(cx.sess(), span) || fn_empty || (is_exported && self.avoid_breaking_exported_api)
     }
 }
 
@@ -69,85 +75,129 @@ impl_lint_pass!(ExtraUnusedTypeParameters => [EXTRA_UNUSED_TYPE_PARAMETERS]);
 /// trait bounds those parameters have.
 struct TypeWalker<'cx, 'tcx> {
     cx: &'cx LateContext<'tcx>,
-    /// Collection of all the function's type parameters.
+    /// Collection of the function's type parameters. Once the function has been walked, this will
+    /// contain only unused type parameters.
     ty_params: FxHashMap<DefId, Span>,
-    /// Collection of any (inline) trait bounds corresponding to each type parameter.
-    bounds: FxHashMap<DefId, Span>,
+    /// Collection of any inline trait bounds corresponding to each type parameter.
+    inline_bounds: FxHashMap<DefId, Span>,
+    /// Collection of any type parameters with trait bounds that appear in a where clause.
+    where_bounds: FxHashSet<DefId>,
     /// The entire `Generics` object of the function, useful for querying purposes.
     generics: &'tcx Generics<'tcx>,
-    /// The value of this will remain `true` if *every* parameter:
-    ///   1. Is a type parameter, and
-    ///   2. Goes unused in the function.
-    /// Otherwise, if any type parameters end up being used, or if any lifetime or const-generic
-    /// parameters are present, this will be set to `false`.
-    all_params_unused: bool,
 }
 
 impl<'cx, 'tcx> TypeWalker<'cx, 'tcx> {
     fn new(cx: &'cx LateContext<'tcx>, generics: &'tcx Generics<'tcx>) -> Self {
-        let mut all_params_unused = true;
         let ty_params = generics
             .params
             .iter()
-            .filter_map(|param| {
-                if let GenericParamKind::Type { synthetic, .. } = param.kind {
-                    (!synthetic).then_some((param.def_id.into(), param.span))
-                } else {
-                    if !param.is_elided_lifetime() {
-                        all_params_unused = false;
-                    }
-                    None
-                }
+            .filter_map(|param| match param.kind {
+                GenericParamKind::Type { synthetic, .. } if !synthetic => Some((param.def_id.into(), param.span)),
+                _ => None,
             })
             .collect();
 
         Self {
             cx,
             ty_params,
-            bounds: FxHashMap::default(),
+            inline_bounds: FxHashMap::default(),
+            where_bounds: FxHashSet::default(),
             generics,
-            all_params_unused,
         }
     }
 
-    fn mark_param_used(&mut self, def_id: DefId) {
-        if self.ty_params.remove(&def_id).is_some() {
-            self.all_params_unused = false;
-        }
+    fn get_bound_span(&self, param: &'tcx GenericParam<'tcx>) -> Span {
+        self.inline_bounds
+            .get(&param.def_id.to_def_id())
+            .map_or(param.span, |bound_span| param.span.with_hi(bound_span.hi()))
+    }
+
+    fn emit_help(&self, spans: Vec<Span>, msg: &str, help: &'static str) {
+        span_lint_and_help(self.cx, EXTRA_UNUSED_TYPE_PARAMETERS, spans, msg, None, help);
+    }
+
+    fn emit_sugg(&self, spans: Vec<Span>, msg: &str, help: &'static str) {
+        let suggestions: Vec<(Span, String)> = spans.iter().copied().zip(std::iter::repeat(String::new())).collect();
+        span_lint_and_then(self.cx, EXTRA_UNUSED_TYPE_PARAMETERS, spans, msg, |diag| {
+            diag.multipart_suggestion(help, suggestions, Applicability::MachineApplicable);
+        });
     }
 
     fn emit_lint(&self) {
-        let (msg, help) = match self.ty_params.len() {
+        let explicit_params = self
+            .generics
+            .params
+            .iter()
+            .filter(|param| !param.is_elided_lifetime() && !param.is_impl_trait())
+            .collect::<Vec<_>>();
+
+        let extra_params = explicit_params
+            .iter()
+            .enumerate()
+            .filter(|(_, param)| self.ty_params.contains_key(&param.def_id.to_def_id()))
+            .collect::<Vec<_>>();
+
+        let (msg, help) = match extra_params.len() {
             0 => return,
             1 => (
-                "type parameter goes unused in function definition",
+                format!(
+                    "type parameter `{}` goes unused in function definition",
+                    extra_params[0].1.name.ident()
+                ),
                 "consider removing the parameter",
             ),
             _ => (
-                "type parameters go unused in function definition",
+                format!(
+                    "type parameters go unused in function definition: {}",
+                    extra_params
+                        .iter()
+                        .map(|(_, param)| param.name.ident().to_string())
+                        .collect::<Vec<_>>()
+                        .join(", ")
+                ),
                 "consider removing the parameters",
             ),
         };
 
-        let source_map = self.cx.sess().source_map();
-        let span = if self.all_params_unused {
-            self.generics.span.into() // Remove the entire list of generics
+        // If any parameters are bounded in where clauses, don't try to form a suggestion.
+        // Otherwise, the leftover where bound would produce code that wouldn't compile.
+        if extra_params
+            .iter()
+            .any(|(_, param)| self.where_bounds.contains(&param.def_id.to_def_id()))
+        {
+            let spans = extra_params
+                .iter()
+                .map(|(_, param)| self.get_bound_span(param))
+                .collect::<Vec<_>>();
+            self.emit_help(spans, &msg, help);
         } else {
-            MultiSpan::from_spans(
-                self.ty_params
+            let spans = if explicit_params.len() == extra_params.len() {
+                vec![self.generics.span] // Remove the entire list of generics
+            } else {
+                let mut end: Option<LocalDefId> = None;
+                extra_params
                     .iter()
-                    .map(|(def_id, &span)| {
-                        // Extend the span past any trait bounds, and include the comma at the end.
-                        let span_to_extend = self.bounds.get(def_id).copied().map_or(span, Span::shrink_to_hi);
-                        let comma_range = source_map.span_extend_to_next_char(span_to_extend, '>', false);
-                        let comma_span = source_map.span_through_char(comma_range, ',');
-                        span.with_hi(comma_span.hi())
+                    .rev()
+                    .map(|(idx, param)| {
+                        if let Some(next) = explicit_params.get(idx + 1) && end != Some(next.def_id) {
+                        // Extend the current span forward, up until the next param in the list.
+                        param.span.until(next.span)
+                    } else {
+                        // Extend the current span back to include the comma following the previous
+                        // param. If the span of the next param in the list has already been
+                        // extended, we continue the chain. This is why we're iterating in reverse.
+                        end = Some(param.def_id);
+
+                        // idx will never be 0, else we'd be removing the entire list of generics
+                        let prev = explicit_params[idx - 1];
+                        let prev_span = self.get_bound_span(prev);
+                        self.get_bound_span(param).with_lo(prev_span.hi())
+                    }
                     })
-                    .collect(),
-            )
+                    .collect()
+            };
+            self.emit_sugg(spans, &msg, help);
         };
-
-        span_lint_and_help(self.cx, EXTRA_UNUSED_TYPE_PARAMETERS, span, msg, None, help);
     }
 }
 
@@ -162,7 +212,7 @@ impl<'cx, 'tcx> Visitor<'tcx> for TypeWalker<'cx, 'tcx> {
 
     fn visit_ty(&mut self, t: &'tcx Ty<'tcx>) {
         if let Some((def_id, _)) = t.peel_refs().as_generic_param() {
-            self.mark_param_used(def_id);
+            self.ty_params.remove(&def_id);
         } else if let TyKind::OpaqueDef(id, _, _) = t.kind {
             // Explicitly walk OpaqueDef. Normally `walk_ty` would do the job, but it calls
             // `visit_nested_item`, which checks that `Self::NestedFilter::INTER` is set. We're
@@ -176,9 +226,18 @@ impl<'cx, 'tcx> Visitor<'tcx> for TypeWalker<'cx, 'tcx> {
 
     fn visit_where_predicate(&mut self, predicate: &'tcx WherePredicate<'tcx>) {
         if let WherePredicate::BoundPredicate(predicate) = predicate {
-            // Collect spans for any bounds on type parameters. We only keep bounds that appear in
-            // the list of generics (not in a where-clause).
+            // Collect spans for any bounds on type parameters.
             if let Some((def_id, _)) = predicate.bounded_ty.peel_refs().as_generic_param() {
+                match predicate.origin {
+                    PredicateOrigin::GenericParam => {
+                        self.inline_bounds.insert(def_id, predicate.span);
+                    },
+                    PredicateOrigin::WhereClause => {
+                        self.where_bounds.insert(def_id);
+                    },
+                    PredicateOrigin::ImplTrait => (),
+                }
+
                 // If the bound contains non-public traits, err on the safe side and don't lint the
                 // corresponding parameter.
                 if !predicate
@@ -187,12 +246,10 @@ impl<'cx, 'tcx> Visitor<'tcx> for TypeWalker<'cx, 'tcx> {
                     .filter_map(bound_to_trait_def_id)
                     .all(|id| self.cx.effective_visibilities.is_exported(id))
                 {
-                    self.mark_param_used(def_id);
-                } else if let PredicateOrigin::GenericParam = predicate.origin {
-                    self.bounds.insert(def_id, predicate.span);
+                    self.ty_params.remove(&def_id);
                 }
             }
-            // Only walk the right-hand side of where-bounds
+            // Only walk the right-hand side of where bounds
             for bound in predicate.bounds {
                 walk_param_bound(self, bound);
             }
@@ -207,7 +264,7 @@ impl<'cx, 'tcx> Visitor<'tcx> for TypeWalker<'cx, 'tcx> {
 impl<'tcx> LateLintPass<'tcx> for ExtraUnusedTypeParameters {
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'tcx>) {
         if let ItemKind::Fn(_, generics, body_id) = item.kind
-            && !self.check_false_positive(cx, item.span, item.owner_id.def_id, body_id)
+            && !self.is_empty_exported_or_macro(cx, item.span, item.owner_id.def_id, body_id)
         {
             let mut walker = TypeWalker::new(cx, generics);
             walk_item(&mut walker, item);
@@ -219,7 +276,7 @@ impl<'tcx> LateLintPass<'tcx> for ExtraUnusedTypeParameters {
         // Only lint on inherent methods, not trait methods.
         if let ImplItemKind::Fn(.., body_id) = item.kind
             && trait_ref_of_method(cx, item.owner_id.def_id).is_none()
-            && !self.check_false_positive(cx, item.span, item.owner_id.def_id, body_id)
+            && !self.is_empty_exported_or_macro(cx, item.span, item.owner_id.def_id, body_id)
         {
             let mut walker = TypeWalker::new(cx, item.generics);
             walk_impl_item(&mut walker, item);
diff --git a/src/tools/clippy/clippy_lints/src/fn_null_check.rs b/src/tools/clippy/clippy_lints/src/fn_null_check.rs
index 91c8c340c..d8f4a5fe2 100644
--- a/src/tools/clippy/clippy_lints/src/fn_null_check.rs
+++ b/src/tools/clippy/clippy_lints/src/fn_null_check.rs
@@ -25,7 +25,7 @@ declare_clippy_lint! {
     ///
     /// if fn_ptr.is_none() { ... }
     /// ```
-    #[clippy::version = "1.67.0"]
+    #[clippy::version = "1.68.0"]
     pub FN_NULL_CHECK,
     correctness,
     "`fn()` type assumed to be nullable"
diff --git a/src/tools/clippy/clippy_lints/src/format.rs b/src/tools/clippy/clippy_lints/src/format.rs
index d0fab6949..d34d6e927 100644
--- a/src/tools/clippy/clippy_lints/src/format.rs
+++ b/src/tools/clippy/clippy_lints/src/format.rs
@@ -1,14 +1,13 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::macros::{root_macro_call_first_node, FormatArgsExpn};
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::macros::{find_format_arg_expr, find_format_args, root_macro_call_first_node};
+use clippy_utils::source::{snippet_opt, snippet_with_context};
 use clippy_utils::sugg::Sugg;
-use if_chain::if_chain;
+use rustc_ast::{FormatArgsPiece, FormatOptions, FormatTrait};
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
-use rustc_span::symbol::kw;
 use rustc_span::{sym, Span};
 
 declare_clippy_lint! {
@@ -44,55 +43,53 @@ declare_lint_pass!(UselessFormat => [USELESS_FORMAT]);
 
 impl<'tcx> LateLintPass<'tcx> for UselessFormat {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
-        let (format_args, call_site) = if_chain! {
-            if let Some(macro_call) = root_macro_call_first_node(cx, expr);
-            if cx.tcx.is_diagnostic_item(sym::format_macro, macro_call.def_id);
-            if let Some(format_args) = FormatArgsExpn::find_nested(cx, expr, macro_call.expn);
-            then {
-                (format_args, macro_call.span)
-            } else {
-                return
-            }
-        };
+        let Some(macro_call) = root_macro_call_first_node(cx, expr) else { return };
+        if !cx.tcx.is_diagnostic_item(sym::format_macro, macro_call.def_id) {
+            return;
+        }
+
+        find_format_args(cx, expr, macro_call.expn, |format_args| {
+            let mut applicability = Applicability::MachineApplicable;
+            let call_site = macro_call.span;
 
-        let mut applicability = Applicability::MachineApplicable;
-        if format_args.args.is_empty() {
-            match *format_args.format_string.parts {
-                [] => span_useless_format_empty(cx, call_site, "String::new()".to_owned(), applicability),
-                [_] => {
+            match (format_args.arguments.all_args(), &format_args.template[..]) {
+                ([], []) => span_useless_format_empty(cx, call_site, "String::new()".to_owned(), applicability),
+                ([], [_]) => {
                     // Simulate macro expansion, converting {{ and }} to { and }.
-                    let s_expand = format_args.format_string.snippet.replace("{{", "{").replace("}}", "}");
+                    let Some(snippet) = snippet_opt(cx, format_args.span) else { return };
+                    let s_expand = snippet.replace("{{", "{").replace("}}", "}");
                     let sugg = format!("{s_expand}.to_string()");
                     span_useless_format(cx, call_site, sugg, applicability);
                 },
-                [..] => {},
-            }
-        } else if let [arg] = &*format_args.args {
-            let value = arg.param.value;
-            if_chain! {
-                if format_args.format_string.parts == [kw::Empty];
-                if arg.format.is_default();
-                if match cx.typeck_results().expr_ty(value).peel_refs().kind() {
-                    ty::Adt(adt, _) => Some(adt.did()) == cx.tcx.lang_items().string(),
-                    ty::Str => true,
-                    _ => false,
-                };
-                then {
-                    let is_new_string = match value.kind {
-                        ExprKind::Binary(..) => true,
-                        ExprKind::MethodCall(path, ..) => path.ident.name == sym::to_string,
-                        _ => false,
-                    };
-                    let sugg = if is_new_string {
-                        snippet_with_applicability(cx, value.span, "..", &mut applicability).into_owned()
-                    } else {
-                        let sugg = Sugg::hir_with_applicability(cx, value, "<arg>", &mut applicability);
-                        format!("{}.to_string()", sugg.maybe_par())
-                    };
-                    span_useless_format(cx, call_site, sugg, applicability);
-                }
+                ([arg], [piece]) => {
+                    if let Ok(value) = find_format_arg_expr(expr, arg)
+                        && let FormatArgsPiece::Placeholder(placeholder) = piece
+                        && placeholder.format_trait == FormatTrait::Display
+                        && placeholder.format_options == FormatOptions::default()
+                        && match cx.typeck_results().expr_ty(value).peel_refs().kind() {
+                            ty::Adt(adt, _) => Some(adt.did()) == cx.tcx.lang_items().string(),
+                            ty::Str => true,
+                            _ => false,
+                        }
+                    {
+                        let is_new_string = match value.kind {
+                            ExprKind::Binary(..) => true,
+                            ExprKind::MethodCall(path, ..) => path.ident.name == sym::to_string,
+                            _ => false,
+                        };
+                        let sugg = if is_new_string {
+                            snippet_with_context(cx, value.span, call_site.ctxt(), "..", &mut applicability).0.into_owned()
+                        } else {
+                            let sugg = Sugg::hir_with_context(cx, value, call_site.ctxt(), "<arg>", &mut applicability);
+                            format!("{}.to_string()", sugg.maybe_par())
+                        };
+                        span_useless_format(cx, call_site, sugg, applicability);
+
+                    }
+                },
+                _ => {},
             }
-        };
+        });
     }
 }
 
diff --git a/src/tools/clippy/clippy_lints/src/format_args.rs b/src/tools/clippy/clippy_lints/src/format_args.rs
index c511d85e9..08e45ed7d 100644
--- a/src/tools/clippy/clippy_lints/src/format_args.rs
+++ b/src/tools/clippy/clippy_lints/src/format_args.rs
@@ -1,27 +1,31 @@
+use arrayvec::ArrayVec;
 use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_and_then};
 use clippy_utils::is_diag_trait_item;
-use clippy_utils::macros::FormatParamKind::{Implicit, Named, NamedInline, Numbered, Starred};
 use clippy_utils::macros::{
-    is_assert_macro, is_format_macro, is_panic, root_macro_call, Count, FormatArg, FormatArgsExpn, FormatParam,
-    FormatParamUsage,
+    find_format_arg_expr, find_format_args, format_arg_removal_span, format_placeholder_format_span, is_assert_macro,
+    is_format_macro, is_panic, root_macro_call, root_macro_call_first_node, FormatParamUsage,
 };
 use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::snippet_opt;
 use clippy_utils::ty::{implements_trait, is_type_lang_item};
 use if_chain::if_chain;
 use itertools::Itertools;
+use rustc_ast::{
+    FormatArgPosition, FormatArgPositionKind, FormatArgsPiece, FormatArgumentKind, FormatCount, FormatOptions,
+    FormatPlaceholder, FormatTrait,
+};
 use rustc_errors::{
     Applicability,
     SuggestionStyle::{CompletelyHidden, ShowCode},
 };
-use rustc_hir::{Expr, ExprKind, HirId, LangItem, QPath};
+use rustc_hir::{Expr, ExprKind, LangItem};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::ty::adjustment::{Adjust, Adjustment};
 use rustc_middle::ty::Ty;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::def_id::DefId;
 use rustc_span::edition::Edition::Edition2021;
-use rustc_span::{sym, ExpnData, ExpnKind, Span, Symbol};
+use rustc_span::{sym, Span, Symbol};
 
 declare_clippy_lint! {
     /// ### What it does
@@ -184,72 +188,79 @@ impl FormatArgs {
 
 impl<'tcx> LateLintPass<'tcx> for FormatArgs {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) {
-        if let Some(format_args) = FormatArgsExpn::parse(cx, expr)
-            && let expr_expn_data = expr.span.ctxt().outer_expn_data()
-            && let outermost_expn_data = outermost_expn_data(expr_expn_data)
-            && let Some(macro_def_id) = outermost_expn_data.macro_def_id
-            && is_format_macro(cx, macro_def_id)
-            && let ExpnKind::Macro(_, name) = outermost_expn_data.kind
-        {
-            for arg in &format_args.args {
-                check_unused_format_specifier(cx, arg);
-                if !arg.format.is_default() {
-                    continue;
-                }
-                if is_aliased(&format_args, arg.param.value.hir_id) {
-                    continue;
+        let Some(macro_call) = root_macro_call_first_node(cx, expr) else { return };
+        if !is_format_macro(cx, macro_call.def_id) {
+            return;
+        }
+        let name = cx.tcx.item_name(macro_call.def_id);
+
+        find_format_args(cx, expr, macro_call.expn, |format_args| {
+            for piece in &format_args.template {
+                if let FormatArgsPiece::Placeholder(placeholder) = piece
+                    && let Ok(index) = placeholder.argument.index
+                    && let Some(arg) = format_args.arguments.all_args().get(index)
+                {
+                    let arg_expr = find_format_arg_expr(expr, arg);
+
+                    check_unused_format_specifier(cx, placeholder, arg_expr);
+
+                    if placeholder.format_trait != FormatTrait::Display
+                        || placeholder.format_options != FormatOptions::default()
+                        || is_aliased(format_args, index)
+                    {
+                        continue;
+                    }
+
+                    if let Ok(arg_hir_expr) = arg_expr {
+                        check_format_in_format_args(cx, macro_call.span, name, arg_hir_expr);
+                        check_to_string_in_format_args(cx, name, arg_hir_expr);
+                    }
                 }
-                check_format_in_format_args(cx, outermost_expn_data.call_site, name, arg.param.value);
-                check_to_string_in_format_args(cx, name, arg.param.value);
             }
+
             if self.msrv.meets(msrvs::FORMAT_ARGS_CAPTURE) {
-                check_uninlined_args(cx, &format_args, outermost_expn_data.call_site, macro_def_id, self.ignore_mixed);
+                check_uninlined_args(cx, format_args, macro_call.span, macro_call.def_id, self.ignore_mixed);
             }
-        }
+        });
     }
 
     extract_msrv_attr!(LateContext);
 }
 
-fn check_unused_format_specifier(cx: &LateContext<'_>, arg: &FormatArg<'_>) {
-    let param_ty = cx.typeck_results().expr_ty(arg.param.value).peel_refs();
+fn check_unused_format_specifier(
+    cx: &LateContext<'_>,
+    placeholder: &FormatPlaceholder,
+    arg_expr: Result<&Expr<'_>, &rustc_ast::Expr>,
+) {
+    let ty_or_ast_expr = arg_expr.map(|expr| cx.typeck_results().expr_ty(expr).peel_refs());
 
-    if let Count::Implied(Some(mut span)) = arg.format.precision
-        && !span.is_empty()
-    {
-        span_lint_and_then(
-            cx,
-            UNUSED_FORMAT_SPECS,
-            span,
-            "empty precision specifier has no effect",
-            |diag| {
-                if param_ty.is_floating_point() {
-                    diag.note("a precision specifier is not required to format floats");
-                }
+    let is_format_args = match ty_or_ast_expr {
+        Ok(ty) => is_type_lang_item(cx, ty, LangItem::FormatArguments),
+        Err(expr) => matches!(expr.peel_parens_and_refs().kind, rustc_ast::ExprKind::FormatArgs(_)),
+    };
 
-                if arg.format.is_default() {
-                    // If there's no other specifiers remove the `:` too
-                    span = arg.format_span();
-                }
+    let options = &placeholder.format_options;
 
-                diag.span_suggestion_verbose(span, "remove the `.`", "", Applicability::MachineApplicable);
-            },
-        );
-    }
+    let arg_span = match arg_expr {
+        Ok(expr) => expr.span,
+        Err(expr) => expr.span,
+    };
 
-    if is_type_lang_item(cx, param_ty, LangItem::FormatArguments) && !arg.format.is_default_for_trait() {
+    if let Some(placeholder_span) = placeholder.span
+        && is_format_args
+        && *options != FormatOptions::default()
+    {
         span_lint_and_then(
             cx,
             UNUSED_FORMAT_SPECS,
-            arg.span,
+            placeholder_span,
             "format specifiers have no effect on `format_args!()`",
             |diag| {
-                let mut suggest_format = |spec, span| {
+                let mut suggest_format = |spec| {
                     let message = format!("for the {spec} to apply consider using `format!()`");
 
-                    if let Some(mac_call) = root_macro_call(arg.param.value.span)
+                    if let Some(mac_call) = root_macro_call(arg_span)
                         && cx.tcx.is_diagnostic_item(sym::format_args_macro, mac_call.def_id)
-                        && arg.span.eq_ctxt(mac_call.span)
                     {
                         diag.span_suggestion(
                             cx.sess().source_map().span_until_char(mac_call.span, '!'),
@@ -257,25 +268,27 @@ fn check_unused_format_specifier(cx: &LateContext<'_>, arg: &FormatArg<'_>) {
                             "format",
                             Applicability::MaybeIncorrect,
                         );
-                    } else if let Some(span) = span {
-                        diag.span_help(span, message);
+                    } else {
+                        diag.help(message);
                     }
                 };
 
-                if !arg.format.width.is_implied() {
-                    suggest_format("width", arg.format.width.span());
+                if options.width.is_some() {
+                    suggest_format("width");
                 }
 
-                if !arg.format.precision.is_implied() {
-                    suggest_format("precision", arg.format.precision.span());
+                if options.precision.is_some() {
+                    suggest_format("precision");
                 }
 
-                diag.span_suggestion_verbose(
-                    arg.format_span(),
-                    "if the current behavior is intentional, remove the format specifiers",
-                    "",
-                    Applicability::MaybeIncorrect,
-                );
+                if let Some(format_span) = format_placeholder_format_span(placeholder) {
+                    diag.span_suggestion_verbose(
+                        format_span,
+                        "if the current behavior is intentional, remove the format specifiers",
+                        "",
+                        Applicability::MaybeIncorrect,
+                    );
+                }
             },
         );
     }
@@ -283,12 +296,12 @@ fn check_unused_format_specifier(cx: &LateContext<'_>, arg: &FormatArg<'_>) {
 
 fn check_uninlined_args(
     cx: &LateContext<'_>,
-    args: &FormatArgsExpn<'_>,
+    args: &rustc_ast::FormatArgs,
     call_site: Span,
     def_id: DefId,
     ignore_mixed: bool,
 ) {
-    if args.format_string.span.from_expansion() {
+    if args.span.from_expansion() {
         return;
     }
     if call_site.edition() < Edition2021 && (is_panic(cx, def_id) || is_assert_macro(cx, def_id)) {
@@ -303,7 +316,13 @@ fn check_uninlined_args(
     // we cannot remove any other arguments in the format string,
     // because the index numbers might be wrong after inlining.
     // Example of an un-inlinable format:  print!("{}{1}", foo, 2)
-    if !args.params().all(|p| check_one_arg(args, &p, &mut fixes, ignore_mixed)) || fixes.is_empty() {
+    for (pos, usage) in format_arg_positions(args) {
+        if !check_one_arg(args, pos, usage, &mut fixes, ignore_mixed) {
+            return;
+        }
+    }
+
+    if fixes.is_empty() {
         return;
     }
 
@@ -332,47 +351,40 @@ fn check_uninlined_args(
 }
 
 fn check_one_arg(
-    args: &FormatArgsExpn<'_>,
-    param: &FormatParam<'_>,
+    args: &rustc_ast::FormatArgs,
+    pos: &FormatArgPosition,
+    usage: FormatParamUsage,
     fixes: &mut Vec<(Span, String)>,
     ignore_mixed: bool,
 ) -> bool {
-    if matches!(param.kind, Implicit | Starred | Named(_) | Numbered)
-        && let ExprKind::Path(QPath::Resolved(None, path)) = param.value.kind
-        && let [segment] = path.segments
+    let index = pos.index.unwrap();
+    let arg = &args.arguments.all_args()[index];
+
+    if !matches!(arg.kind, FormatArgumentKind::Captured(_))
+        && let rustc_ast::ExprKind::Path(None, path) = &arg.expr.kind
+        && let [segment] = path.segments.as_slice()
         && segment.args.is_none()
-        && let Some(arg_span) = args.value_with_prev_comma_span(param.value.hir_id)
+        && let Some(arg_span) = format_arg_removal_span(args, index)
+        && let Some(pos_span) = pos.span
     {
-        let replacement = match param.usage {
+        let replacement = match usage {
             FormatParamUsage::Argument => segment.ident.name.to_string(),
             FormatParamUsage::Width => format!("{}$", segment.ident.name),
             FormatParamUsage::Precision => format!(".{}$", segment.ident.name),
         };
-        fixes.push((param.span, replacement));
+        fixes.push((pos_span, replacement));
         fixes.push((arg_span, String::new()));
         true  // successful inlining, continue checking
     } else {
         // Do not continue inlining (return false) in case
         // * if we can't inline a numbered argument, e.g. `print!("{0} ...", foo.bar, ...)`
         // * if allow_mixed_uninlined_format_args is false and this arg hasn't been inlined already
-        param.kind != Numbered && (!ignore_mixed || matches!(param.kind, NamedInline(_)))
-    }
-}
-
-fn outermost_expn_data(expn_data: ExpnData) -> ExpnData {
-    if expn_data.call_site.from_expansion() {
-        outermost_expn_data(expn_data.call_site.ctxt().outer_expn_data())
-    } else {
-        expn_data
+        pos.kind != FormatArgPositionKind::Number
+            && (!ignore_mixed || matches!(arg.kind, FormatArgumentKind::Captured(_)))
     }
 }
 
-fn check_format_in_format_args(
-    cx: &LateContext<'_>,
-    call_site: Span,
-    name: Symbol,
-    arg: &Expr<'_>,
-) {
+fn check_format_in_format_args(cx: &LateContext<'_>, call_site: Span, name: Symbol, arg: &Expr<'_>) {
     let expn_data = arg.span.ctxt().outer_expn_data();
     if expn_data.call_site.from_expansion() {
         return;
@@ -443,9 +455,33 @@ fn check_to_string_in_format_args(cx: &LateContext<'_>, name: Symbol, value: &Ex
     }
 }
 
-/// Returns true if `hir_id` is referred to by multiple format params
-fn is_aliased(args: &FormatArgsExpn<'_>, hir_id: HirId) -> bool {
-    args.params().filter(|param| param.value.hir_id == hir_id).at_most_one().is_err()
+fn format_arg_positions(
+    format_args: &rustc_ast::FormatArgs,
+) -> impl Iterator<Item = (&FormatArgPosition, FormatParamUsage)> {
+    format_args.template.iter().flat_map(|piece| match piece {
+        FormatArgsPiece::Placeholder(placeholder) => {
+            let mut positions = ArrayVec::<_, 3>::new();
+
+            positions.push((&placeholder.argument, FormatParamUsage::Argument));
+            if let Some(FormatCount::Argument(position)) = &placeholder.format_options.width {
+                positions.push((position, FormatParamUsage::Width));
+            }
+            if let Some(FormatCount::Argument(position)) = &placeholder.format_options.precision {
+                positions.push((position, FormatParamUsage::Precision));
+            }
+
+            positions
+        },
+        FormatArgsPiece::Literal(_) => ArrayVec::new(),
+    })
+}
+
+/// Returns true if the format argument at `index` is referred to by multiple format params
+fn is_aliased(format_args: &rustc_ast::FormatArgs, index: usize) -> bool {
+    format_arg_positions(format_args)
+        .filter(|(position, _)| position.index == Ok(index))
+        .at_most_one()
+        .is_err()
 }
 
 fn count_needed_derefs<'tcx, I>(mut ty: Ty<'tcx>, mut iter: I) -> (usize, Ty<'tcx>)
@@ -455,7 +491,11 @@ where
     let mut n_total = 0;
     let mut n_needed = 0;
     loop {
-        if let Some(Adjustment { kind: Adjust::Deref(overloaded_deref), target }) = iter.next() {
+        if let Some(Adjustment {
+            kind: Adjust::Deref(overloaded_deref),
+            target,
+        }) = iter.next()
+        {
             n_total += 1;
             if overloaded_deref.is_some() {
                 n_needed = n_total;
diff --git a/src/tools/clippy/clippy_lints/src/format_impl.rs b/src/tools/clippy/clippy_lints/src/format_impl.rs
index ed1342a54..e3ddbfb59 100644
--- a/src/tools/clippy/clippy_lints/src/format_impl.rs
+++ b/src/tools/clippy/clippy_lints/src/format_impl.rs
@@ -1,11 +1,13 @@
 use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg};
-use clippy_utils::macros::{is_format_macro, root_macro_call_first_node, FormatArg, FormatArgsExpn};
+use clippy_utils::macros::{find_format_arg_expr, find_format_args, is_format_macro, root_macro_call_first_node};
 use clippy_utils::{get_parent_as_impl, is_diag_trait_item, path_to_local, peel_ref_operators};
 use if_chain::if_chain;
+use rustc_ast::{FormatArgsPiece, FormatTrait};
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind, Impl, ImplItem, ImplItemKind, QPath};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::Span;
 use rustc_span::{sym, symbol::kw, Symbol};
 
 declare_clippy_lint! {
@@ -89,7 +91,7 @@ declare_clippy_lint! {
 }
 
 #[derive(Clone, Copy)]
-struct FormatTrait {
+struct FormatTraitNames {
     /// e.g. `sym::Display`
     name: Symbol,
     /// `f` in `fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {}`
@@ -99,7 +101,7 @@ struct FormatTrait {
 #[derive(Default)]
 pub struct FormatImpl {
     // Whether we are inside Display or Debug trait impl - None for neither
-    format_trait_impl: Option<FormatTrait>,
+    format_trait_impl: Option<FormatTraitNames>,
 }
 
 impl FormatImpl {
@@ -161,43 +163,57 @@ fn check_to_string_in_display(cx: &LateContext<'_>, expr: &Expr<'_>) {
     }
 }
 
-fn check_self_in_format_args<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>, impl_trait: FormatTrait) {
+fn check_self_in_format_args<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>, impl_trait: FormatTraitNames) {
     // Check each arg in format calls - do we ever use Display on self (directly or via deref)?
-    if_chain! {
-        if let Some(outer_macro) = root_macro_call_first_node(cx, expr);
-        if let macro_def_id = outer_macro.def_id;
-        if let Some(format_args) = FormatArgsExpn::find_nested(cx, expr, outer_macro.expn);
-        if is_format_macro(cx, macro_def_id);
-        then {
-            for arg in format_args.args {
-                if arg.format.r#trait != impl_trait.name {
-                    continue;
+    if let Some(outer_macro) = root_macro_call_first_node(cx, expr)
+        && let macro_def_id = outer_macro.def_id
+        && is_format_macro(cx, macro_def_id)
+    {
+        find_format_args(cx, expr, outer_macro.expn, |format_args| {
+            for piece in &format_args.template {
+                if let FormatArgsPiece::Placeholder(placeholder) = piece
+                    && let trait_name = match placeholder.format_trait {
+                        FormatTrait::Display => sym::Display,
+                        FormatTrait::Debug => sym::Debug,
+                        FormatTrait::LowerExp => sym!(LowerExp),
+                        FormatTrait::UpperExp => sym!(UpperExp),
+                        FormatTrait::Octal => sym!(Octal),
+                        FormatTrait::Pointer => sym::Pointer,
+                        FormatTrait::Binary => sym!(Binary),
+                        FormatTrait::LowerHex => sym!(LowerHex),
+                        FormatTrait::UpperHex => sym!(UpperHex),
+                    }
+                    && trait_name == impl_trait.name
+                    && let Ok(index) = placeholder.argument.index
+                    && let Some(arg) = format_args.arguments.all_args().get(index)
+                    && let Ok(arg_expr) = find_format_arg_expr(expr, arg)
+                {
+                    check_format_arg_self(cx, expr.span, arg_expr, impl_trait);
                 }
-                check_format_arg_self(cx, expr, &arg, impl_trait);
             }
-        }
+        });
     }
 }
 
-fn check_format_arg_self(cx: &LateContext<'_>, expr: &Expr<'_>, arg: &FormatArg<'_>, impl_trait: FormatTrait) {
+fn check_format_arg_self(cx: &LateContext<'_>, span: Span, arg: &Expr<'_>, impl_trait: FormatTraitNames) {
     // Handle multiple dereferencing of references e.g. &&self
     // Handle dereference of &self -> self that is equivalent (i.e. via *self in fmt() impl)
     // Since the argument to fmt is itself a reference: &self
-    let reference = peel_ref_operators(cx, arg.param.value);
+    let reference = peel_ref_operators(cx, arg);
     let map = cx.tcx.hir();
     // Is the reference self?
     if path_to_local(reference).map(|x| map.name(x)) == Some(kw::SelfLower) {
-        let FormatTrait { name, .. } = impl_trait;
+        let FormatTraitNames { name, .. } = impl_trait;
         span_lint(
             cx,
             RECURSIVE_FORMAT_IMPL,
-            expr.span,
+            span,
             &format!("using `self` as `{name}` in `impl {name}` will cause infinite recursion"),
         );
     }
 }
 
-fn check_print_in_format_impl(cx: &LateContext<'_>, expr: &Expr<'_>, impl_trait: FormatTrait) {
+fn check_print_in_format_impl(cx: &LateContext<'_>, expr: &Expr<'_>, impl_trait: FormatTraitNames) {
     if_chain! {
         if let Some(macro_call) = root_macro_call_first_node(cx, expr);
         if let Some(name) = cx.tcx.get_diagnostic_name(macro_call.def_id);
@@ -227,7 +243,7 @@ fn check_print_in_format_impl(cx: &LateContext<'_>, expr: &Expr<'_>, impl_trait:
     }
 }
 
-fn is_format_trait_impl(cx: &LateContext<'_>, impl_item: &ImplItem<'_>) -> Option<FormatTrait> {
+fn is_format_trait_impl(cx: &LateContext<'_>, impl_item: &ImplItem<'_>) -> Option<FormatTraitNames> {
     if_chain! {
         if impl_item.ident.name == sym::fmt;
         if let ImplItemKind::Fn(_, body_id) = impl_item.kind;
@@ -241,7 +257,7 @@ fn is_format_trait_impl(cx: &LateContext<'_>, impl_item: &ImplItem<'_>) -> Optio
                 .and_then(|param| param.pat.simple_ident())
                 .map(|ident| ident.name);
 
-            Some(FormatTrait {
+            Some(FormatTraitNames {
                 name,
                 formatter_name,
             })
diff --git a/src/tools/clippy/clippy_lints/src/functions/impl_trait_in_params.rs b/src/tools/clippy/clippy_lints/src/functions/impl_trait_in_params.rs
index 2811a73f6..d3d0d91c1 100644
--- a/src/tools/clippy/clippy_lints/src/functions/impl_trait_in_params.rs
+++ b/src/tools/clippy/clippy_lints/src/functions/impl_trait_in_params.rs
@@ -22,7 +22,7 @@ pub(super) fn check_fn<'tcx>(cx: &LateContext<'_>, kind: &'tcx FnKind<'_>, body:
                             if let Some(gen_span) = generics.span_for_param_suggestion() {
                                 diag.span_suggestion_with_style(
                                     gen_span,
-                                    "add a type paremeter",
+                                    "add a type parameter",
                                     format!(", {{ /* Generic name */ }}: {}", &param.name.ident().as_str()[5..]),
                                     rustc_errors::Applicability::HasPlaceholders,
                                     rustc_errors::SuggestionStyle::ShowAlways,
@@ -35,7 +35,7 @@ pub(super) fn check_fn<'tcx>(cx: &LateContext<'_>, kind: &'tcx FnKind<'_>, body:
                                         ident.span.ctxt(),
                                         ident.span.parent(),
                                     ),
-                                    "add a type paremeter",
+                                    "add a type parameter",
                                     format!("<{{ /* Generic name */ }}: {}>", &param.name.ident().as_str()[5..]),
                                     rustc_errors::Applicability::HasPlaceholders,
                                     rustc_errors::SuggestionStyle::ShowAlways,
diff --git a/src/tools/clippy/clippy_lints/src/functions/misnamed_getters.rs b/src/tools/clippy/clippy_lints/src/functions/misnamed_getters.rs
index 8b53ee68e..e5945939e 100644
--- a/src/tools/clippy/clippy_lints/src/functions/misnamed_getters.rs
+++ b/src/tools/clippy/clippy_lints/src/functions/misnamed_getters.rs
@@ -97,7 +97,7 @@ pub fn check_fn(cx: &LateContext<'_>, kind: FnKind<'_>, decl: &FnDecl<'_>, body:
 
     let Some(correct_field) = correct_field else {
         // There is no field corresponding to the getter name.
-        // FIXME: This can be a false positive if the correct field is reachable trought deeper autodereferences than used_field is
+        // FIXME: This can be a false positive if the correct field is reachable through deeper autodereferences than used_field is
         return;
     };
 
diff --git a/src/tools/clippy/clippy_lints/src/functions/mod.rs b/src/tools/clippy/clippy_lints/src/functions/mod.rs
index d2852b4ac..7c5e44bb7 100644
--- a/src/tools/clippy/clippy_lints/src/functions/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/functions/mod.rs
@@ -185,7 +185,7 @@ declare_clippy_lint! {
     /// ### Examples
     /// ```rust
     /// // this could be annotated with `#[must_use]`.
-    /// fn id<T>(t: T) -> T { t }
+    /// pub fn id<T>(t: T) -> T { t }
     /// ```
     #[clippy::version = "1.40.0"]
     pub MUST_USE_CANDIDATE,
diff --git a/src/tools/clippy/clippy_lints/src/functions/must_use.rs b/src/tools/clippy/clippy_lints/src/functions/must_use.rs
index 29bdc46b6..d0ad26282 100644
--- a/src/tools/clippy/clippy_lints/src/functions/must_use.rs
+++ b/src/tools/clippy/clippy_lints/src/functions/must_use.rs
@@ -1,7 +1,9 @@
+use hir::FnSig;
 use rustc_ast::ast::Attribute;
 use rustc_errors::Applicability;
 use rustc_hir::def_id::DefIdSet;
 use rustc_hir::{self as hir, def::Res, QPath};
+use rustc_infer::infer::TyCtxtInferExt;
 use rustc_lint::{LateContext, LintContext};
 use rustc_middle::{
     lint::in_external_macro,
@@ -22,13 +24,13 @@ use super::{DOUBLE_MUST_USE, MUST_USE_CANDIDATE, MUST_USE_UNIT};
 
 pub(super) fn check_item<'tcx>(cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>) {
     let attrs = cx.tcx.hir().attrs(item.hir_id());
-    let attr = cx.tcx.get_attr(item.owner_id.to_def_id(), sym::must_use);
+    let attr = cx.tcx.get_attr(item.owner_id, sym::must_use);
     if let hir::ItemKind::Fn(ref sig, _generics, ref body_id) = item.kind {
         let is_public = cx.effective_visibilities.is_exported(item.owner_id.def_id);
         let fn_header_span = item.span.with_hi(sig.decl.output.span().hi());
         if let Some(attr) = attr {
-            check_needless_must_use(cx, sig.decl, item.owner_id, item.span, fn_header_span, attr);
-        } else if is_public && !is_proc_macro(cx.sess(), attrs) && !attrs.iter().any(|a| a.has_name(sym::no_mangle)) {
+            check_needless_must_use(cx, sig.decl, item.owner_id, item.span, fn_header_span, attr, sig);
+        } else if is_public && !is_proc_macro(attrs) && !attrs.iter().any(|a| a.has_name(sym::no_mangle)) {
             check_must_use_candidate(
                 cx,
                 sig.decl,
@@ -47,13 +49,10 @@ pub(super) fn check_impl_item<'tcx>(cx: &LateContext<'tcx>, item: &'tcx hir::Imp
         let is_public = cx.effective_visibilities.is_exported(item.owner_id.def_id);
         let fn_header_span = item.span.with_hi(sig.decl.output.span().hi());
         let attrs = cx.tcx.hir().attrs(item.hir_id());
-        let attr = cx.tcx.get_attr(item.owner_id.to_def_id(), sym::must_use);
+        let attr = cx.tcx.get_attr(item.owner_id, sym::must_use);
         if let Some(attr) = attr {
-            check_needless_must_use(cx, sig.decl, item.owner_id, item.span, fn_header_span, attr);
-        } else if is_public
-            && !is_proc_macro(cx.sess(), attrs)
-            && trait_ref_of_method(cx, item.owner_id.def_id).is_none()
-        {
+            check_needless_must_use(cx, sig.decl, item.owner_id, item.span, fn_header_span, attr, sig);
+        } else if is_public && !is_proc_macro(attrs) && trait_ref_of_method(cx, item.owner_id.def_id).is_none() {
             check_must_use_candidate(
                 cx,
                 sig.decl,
@@ -73,12 +72,12 @@ pub(super) fn check_trait_item<'tcx>(cx: &LateContext<'tcx>, item: &'tcx hir::Tr
         let fn_header_span = item.span.with_hi(sig.decl.output.span().hi());
 
         let attrs = cx.tcx.hir().attrs(item.hir_id());
-        let attr = cx.tcx.get_attr(item.owner_id.to_def_id(), sym::must_use);
+        let attr = cx.tcx.get_attr(item.owner_id, sym::must_use);
         if let Some(attr) = attr {
-            check_needless_must_use(cx, sig.decl, item.owner_id, item.span, fn_header_span, attr);
+            check_needless_must_use(cx, sig.decl, item.owner_id, item.span, fn_header_span, attr, sig);
         } else if let hir::TraitFn::Provided(eid) = *eid {
             let body = cx.tcx.hir().body(eid);
-            if attr.is_none() && is_public && !is_proc_macro(cx.sess(), attrs) {
+            if attr.is_none() && is_public && !is_proc_macro(attrs) {
                 check_must_use_candidate(
                     cx,
                     sig.decl,
@@ -100,6 +99,7 @@ fn check_needless_must_use(
     item_span: Span,
     fn_header_span: Span,
     attr: &Attribute,
+    sig: &FnSig<'_>,
 ) {
     if in_external_macro(cx.sess(), item_span) {
         return;
@@ -115,6 +115,15 @@ fn check_needless_must_use(
             },
         );
     } else if attr.value_str().is_none() && is_must_use_ty(cx, return_ty(cx, item_id)) {
+        // Ignore async functions unless Future::Output type is a must_use type
+        if sig.header.is_async() {
+            let infcx = cx.tcx.infer_ctxt().build();
+            if let Some(future_ty) = infcx.get_impl_future_output_ty(return_ty(cx, item_id))
+			&& !is_must_use_ty(cx, future_ty) {
+				return;
+			}
+        }
+
         span_lint_and_help(
             cx,
             DOUBLE_MUST_USE,
diff --git a/src/tools/clippy/clippy_lints/src/future_not_send.rs b/src/tools/clippy/clippy_lints/src/future_not_send.rs
index 9fb73a371..ed0bd58c7 100644
--- a/src/tools/clippy/clippy_lints/src/future_not_send.rs
+++ b/src/tools/clippy/clippy_lints/src/future_not_send.rs
@@ -9,7 +9,7 @@ use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::{sym, Span};
 use rustc_trait_selection::traits::error_reporting::suggestions::TypeErrCtxtExt;
-use rustc_trait_selection::traits::{self, FulfillmentError};
+use rustc_trait_selection::traits::{self, FulfillmentError, ObligationCtxt};
 
 declare_clippy_lint! {
     /// ### What it does
@@ -79,8 +79,10 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend {
                 let send_trait = cx.tcx.get_diagnostic_item(sym::Send).unwrap();
                 let span = decl.output.span();
                 let infcx = cx.tcx.infer_ctxt().build();
+                let ocx = ObligationCtxt::new(&infcx);
                 let cause = traits::ObligationCause::misc(span, fn_def_id);
-                let send_errors = traits::fully_solve_bound(&infcx, cause, cx.param_env, ret_ty, send_trait);
+                ocx.register_bound(cause, cx.param_env, ret_ty, send_trait);
+                let send_errors = ocx.select_all_or_error();
                 if !send_errors.is_empty() {
                     span_lint_and_then(
                         cx,
diff --git a/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs b/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs
index 9cadaaa49..725bd3d54 100644
--- a/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs
+++ b/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs
@@ -1,8 +1,10 @@
 use clippy_utils::diagnostics::span_lint_and_help;
 use clippy_utils::eager_or_lazy::switch_to_eager_eval;
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::source::snippet_with_macro_callsite;
+use clippy_utils::source::snippet_with_context;
+use clippy_utils::sugg::Sugg;
 use clippy_utils::{contains_return, higher, is_else_clause, is_res_lang_ctor, path_res, peel_blocks};
+use rustc_errors::Applicability;
 use rustc_hir::LangItem::{OptionNone, OptionSome};
 use rustc_hir::{Expr, ExprKind, Stmt, StmtKind};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
@@ -72,21 +74,20 @@ impl<'tcx> LateLintPass<'tcx> for IfThenSomeElseNone {
             return;
         }
 
+        let ctxt = expr.span.ctxt();
+
         if let Some(higher::If { cond, then, r#else: Some(els) }) = higher::If::hir(expr)
             && let ExprKind::Block(then_block, _) = then.kind
             && let Some(then_expr) = then_block.expr
             && let ExprKind::Call(then_call, [then_arg]) = then_expr.kind
+            && then_expr.span.ctxt() == ctxt
             && is_res_lang_ctor(cx, path_res(cx, then_call), OptionSome)
             && is_res_lang_ctor(cx, path_res(cx, peel_blocks(els)), OptionNone)
             && !stmts_contains_early_return(then_block.stmts)
         {
-            let cond_snip = snippet_with_macro_callsite(cx, cond.span, "[condition]");
-            let cond_snip = if matches!(cond.kind, ExprKind::Unary(_, _) | ExprKind::Binary(_, _, _)) {
-                format!("({cond_snip})")
-            } else {
-                cond_snip.into_owned()
-            };
-            let arg_snip = snippet_with_macro_callsite(cx, then_arg.span, "");
+            let mut app = Applicability::Unspecified;
+            let cond_snip = Sugg::hir_with_context(cx, cond, expr.span.ctxt(), "[condition]", &mut app).maybe_par().to_string();
+            let arg_snip = snippet_with_context(cx, then_arg.span, ctxt, "[body]", &mut app).0;
             let mut method_body = if then_block.stmts.is_empty() {
                 arg_snip.into_owned()
             } else {
diff --git a/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs b/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs
index 6e1934393..57e6caa87 100644
--- a/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs
+++ b/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs
@@ -1,7 +1,7 @@
 use clippy_utils::consts::{constant, Constant};
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::get_parent_expr;
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::snippet_with_context;
 use if_chain::if_chain;
 use rustc_ast::ast::{LitIntType, LitKind};
 use rustc_errors::Applicability;
@@ -55,6 +55,9 @@ impl<'tcx> LateLintPass<'tcx> for ImplicitSaturatingAdd {
             if let ExprKind::AssignOp(op1, target, value) = ex.kind;
             let ty = cx.typeck_results().expr_ty(target);
             if Some(c) == get_int_max(ty);
+            let ctxt = expr.span.ctxt();
+            if ex.span.ctxt() == ctxt;
+            if expr1.span.ctxt() == ctxt;
             if clippy_utils::SpanlessEq::new(cx).eq_expr(l, target);
             if BinOpKind::Add == op1.node;
             if let ExprKind::Lit(ref lit) = value.kind;
@@ -62,8 +65,15 @@ impl<'tcx> LateLintPass<'tcx> for ImplicitSaturatingAdd {
             if block.expr.is_none();
             then {
                 let mut app = Applicability::MachineApplicable;
-                let code = snippet_with_applicability(cx, target.span, "_", &mut app);
-                let sugg = if let Some(parent) = get_parent_expr(cx, expr) && let ExprKind::If(_cond, _then, Some(else_)) = parent.kind && else_.hir_id == expr.hir_id {format!("{{{code} = {code}.saturating_add(1); }}")} else {format!("{code} = {code}.saturating_add(1);")};
+                let code = snippet_with_context(cx, target.span, ctxt, "_", &mut app).0;
+                let sugg = if let Some(parent) = get_parent_expr(cx, expr)
+                    && let ExprKind::If(_cond, _then, Some(else_)) = parent.kind
+                    && else_.hir_id == expr.hir_id
+                {
+                    format!("{{{code} = {code}.saturating_add(1); }}")
+                } else {
+                    format!("{code} = {code}.saturating_add(1);")
+                };
                 span_lint_and_sugg(cx, IMPLICIT_SATURATING_ADD, expr.span, "manual saturating add detected", "use instead", sugg, app);
             }
         }
diff --git a/src/tools/clippy/clippy_lints/src/infinite_iter.rs b/src/tools/clippy/clippy_lints/src/infinite_iter.rs
index d1d2db27c..fe28c526b 100644
--- a/src/tools/clippy/clippy_lints/src/infinite_iter.rs
+++ b/src/tools/clippy/clippy_lints/src/infinite_iter.rs
@@ -167,7 +167,7 @@ fn is_infinite(cx: &LateContext<'_>, expr: &Expr<'_>) -> Finiteness {
             Finite
         },
         ExprKind::Block(block, _) => block.expr.as_ref().map_or(Finite, |e| is_infinite(cx, e)),
-        ExprKind::Box(e) | ExprKind::AddrOf(BorrowKind::Ref, _, e) => is_infinite(cx, e),
+        ExprKind::AddrOf(BorrowKind::Ref, _, e) => is_infinite(cx, e),
         ExprKind::Call(path, _) => {
             if let ExprKind::Path(ref qpath) = path.kind {
                 cx.qpath_res(qpath, path.hir_id)
diff --git a/src/tools/clippy/clippy_lints/src/instant_subtraction.rs b/src/tools/clippy/clippy_lints/src/instant_subtraction.rs
index 668110c7c..34e999158 100644
--- a/src/tools/clippy/clippy_lints/src/instant_subtraction.rs
+++ b/src/tools/clippy/clippy_lints/src/instant_subtraction.rs
@@ -1,6 +1,6 @@
 use clippy_utils::diagnostics::{self, span_lint_and_sugg};
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::source;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::sugg::Sugg;
 use clippy_utils::ty;
 use rustc_errors::Applicability;
@@ -161,14 +161,9 @@ fn print_unchecked_duration_subtraction_sugg(
 ) {
     let mut applicability = Applicability::MachineApplicable;
 
-    let left_expr =
-        source::snippet_with_applicability(cx, left_expr.span, "std::time::Instant::now()", &mut applicability);
-    let right_expr = source::snippet_with_applicability(
-        cx,
-        right_expr.span,
-        "std::time::Duration::from_secs(1)",
-        &mut applicability,
-    );
+    let ctxt = expr.span.ctxt();
+    let left_expr = snippet_with_context(cx, left_expr.span, ctxt, "<instant>", &mut applicability).0;
+    let right_expr = snippet_with_context(cx, right_expr.span, ctxt, "<duration>", &mut applicability).0;
 
     diagnostics::span_lint_and_sugg(
         cx,
diff --git a/src/tools/clippy/clippy_lints/src/items_after_statements.rs b/src/tools/clippy/clippy_lints/src/items_after_statements.rs
index 46d439b44..a7ec57e28 100644
--- a/src/tools/clippy/clippy_lints/src/items_after_statements.rs
+++ b/src/tools/clippy/clippy_lints/src/items_after_statements.rs
@@ -1,8 +1,8 @@
 //! lint when items are used after statements
 
-use clippy_utils::diagnostics::span_lint;
-use rustc_ast::ast::{Block, ItemKind, StmtKind};
-use rustc_lint::{EarlyContext, EarlyLintPass, LintContext};
+use clippy_utils::diagnostics::span_lint_hir;
+use rustc_hir::{Block, ItemKind, StmtKind};
+use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::lint::in_external_macro;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
@@ -52,33 +52,34 @@ declare_clippy_lint! {
 
 declare_lint_pass!(ItemsAfterStatements => [ITEMS_AFTER_STATEMENTS]);
 
-impl EarlyLintPass for ItemsAfterStatements {
-    fn check_block(&mut self, cx: &EarlyContext<'_>, item: &Block) {
-        if in_external_macro(cx.sess(), item.span) {
+impl LateLintPass<'_> for ItemsAfterStatements {
+    fn check_block(&mut self, cx: &LateContext<'_>, block: &Block<'_>) {
+        if in_external_macro(cx.sess(), block.span) {
             return;
         }
 
-        // skip initial items and trailing semicolons
-        let stmts = item
+        // skip initial items
+        let stmts = block
             .stmts
             .iter()
-            .map(|stmt| &stmt.kind)
-            .skip_while(|s| matches!(**s, StmtKind::Item(..) | StmtKind::Empty));
+            .skip_while(|stmt| matches!(stmt.kind, StmtKind::Item(..)));
 
         // lint on all further items
         for stmt in stmts {
-            if let StmtKind::Item(ref it) = *stmt {
-                if in_external_macro(cx.sess(), it.span) {
+            if let StmtKind::Item(item_id) = stmt.kind {
+                let item = cx.tcx.hir().item(item_id);
+                if in_external_macro(cx.sess(), item.span) || !item.span.eq_ctxt(block.span) {
                     return;
                 }
-                if let ItemKind::MacroDef(..) = it.kind {
+                if let ItemKind::Macro(..) = item.kind {
                     // do not lint `macro_rules`, but continue processing further statements
                     continue;
                 }
-                span_lint(
+                span_lint_hir(
                     cx,
                     ITEMS_AFTER_STATEMENTS,
-                    it.span,
+                    item.hir_id(),
+                    item.span,
                     "adding items after statements is confusing, since items exist from the \
                      start of the scope",
                 );
diff --git a/src/tools/clippy/clippy_lints/src/large_futures.rs b/src/tools/clippy/clippy_lints/src/large_futures.rs
new file mode 100644
index 000000000..1b0544813
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/large_futures.rs
@@ -0,0 +1,87 @@
+use clippy_utils::source::snippet;
+use clippy_utils::{diagnostics::span_lint_and_sugg, ty::implements_trait};
+use rustc_errors::Applicability;
+use rustc_hir::{Expr, ExprKind, LangItem, MatchSource, QPath};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_target::abi::Size;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// It checks for the size of a `Future` created by `async fn` or `async {}`.
+    ///
+    /// ### Why is this bad?
+    /// Due to the current [unideal implemention](https://github.com/rust-lang/rust/issues/69826) of `Generator`,
+    /// large size of a `Future` may cause stack overflows.
+    ///
+    /// ### Example
+    /// ```rust
+    /// async fn wait(f: impl std::future::Future<Output = ()>) {}
+    ///
+    /// async fn big_fut(arg: [u8; 1024]) {}
+    ///
+    /// pub async fn test() {
+    ///     let fut = big_fut([0u8; 1024]);
+    ///     wait(fut).await;
+    /// }
+    /// ```
+    ///
+    /// `Box::pin` the big future instead.
+    ///
+    /// ```rust
+    /// async fn wait(f: impl std::future::Future<Output = ()>) {}
+    ///
+    /// async fn big_fut(arg: [u8; 1024]) {}
+    ///
+    /// pub async fn test() {
+    ///     let fut = Box::pin(big_fut([0u8; 1024]));
+    ///     wait(fut).await;
+    /// }
+    /// ```
+    #[clippy::version = "1.68.0"]
+    pub LARGE_FUTURES,
+    pedantic,
+    "large future may lead to unexpected stack overflows"
+}
+
+#[derive(Copy, Clone)]
+pub struct LargeFuture {
+    future_size_threshold: u64,
+}
+
+impl LargeFuture {
+    pub fn new(future_size_threshold: u64) -> Self {
+        Self { future_size_threshold }
+    }
+}
+
+impl_lint_pass!(LargeFuture => [LARGE_FUTURES]);
+
+impl<'tcx> LateLintPass<'tcx> for LargeFuture {
+    fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) {
+        if matches!(expr.span.ctxt().outer_expn_data().kind, rustc_span::ExpnKind::Macro(..)) {
+            return;
+        }
+        if let ExprKind::Match(expr, _, MatchSource::AwaitDesugar) = expr.kind {
+            if let ExprKind::Call(func, [expr, ..]) = expr.kind
+                && let ExprKind::Path(QPath::LangItem(LangItem::IntoFutureIntoFuture, ..)) = func.kind
+                && let ty = cx.typeck_results().expr_ty(expr)
+                && let Some(future_trait_def_id) = cx.tcx.lang_items().future_trait()
+                && implements_trait(cx, ty, future_trait_def_id, &[])
+                && let Ok(layout) = cx.tcx.layout_of(cx.param_env.and(ty))
+                && let size = layout.layout.size()
+                && size >= Size::from_bytes(self.future_size_threshold)
+            {
+                span_lint_and_sugg(
+                    cx,
+                    LARGE_FUTURES,
+                    expr.span,
+                    &format!("large future with a size of {} bytes", size.bytes()),
+                    "consider `Box::pin` on it",
+                    format!("Box::pin({})", snippet(cx, expr.span, "..")),
+                    Applicability::Unspecified,
+                );
+            }
+        }
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/len_zero.rs b/src/tools/clippy/clippy_lints/src/len_zero.rs
index e13bc4797..0805b4b19 100644
--- a/src/tools/clippy/clippy_lints/src/len_zero.rs
+++ b/src/tools/clippy/clippy_lints/src/len_zero.rs
@@ -1,13 +1,14 @@
 use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg, span_lint_and_then};
-use clippy_utils::source::snippet_with_applicability;
-use clippy_utils::{get_item_name, get_parent_as_impl, is_lint_allowed, peel_ref_operators};
+use clippy_utils::source::snippet_with_context;
+use clippy_utils::{get_item_name, get_parent_as_impl, is_lint_allowed, peel_ref_operators, sugg::Sugg};
 use if_chain::if_chain;
 use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::def_id::DefIdSet;
 use rustc_hir::{
-    def_id::DefId, AssocItemKind, BinOpKind, Expr, ExprKind, FnRetTy, ImplItem, ImplItemKind, ImplicitSelfKind, Item,
-    ItemKind, Mutability, Node, TraitItemRef, TyKind, UnOp,
+    def::Res, def_id::DefId, lang_items::LangItem, AssocItemKind, BinOpKind, Expr, ExprKind, FnRetTy, GenericArg,
+    GenericBound, ImplItem, ImplItemKind, ImplicitSelfKind, Item, ItemKind, Mutability, Node, PathSegment, PrimTy,
+    QPath, TraitItemRef, TyKind, TypeBindingKind,
 };
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::{self, AssocKind, FnSig, Ty};
@@ -16,7 +17,6 @@ use rustc_span::{
     source_map::{Span, Spanned, Symbol},
     symbol::sym,
 };
-use std::borrow::Cow;
 
 declare_clippy_lint! {
     /// ### What it does
@@ -251,33 +251,98 @@ fn check_trait_items(cx: &LateContext<'_>, visited_trait: &Item<'_>, trait_items
 }
 
 #[derive(Debug, Clone, Copy)]
-enum LenOutput<'tcx> {
+enum LenOutput {
     Integral,
     Option(DefId),
-    Result(DefId, Ty<'tcx>),
+    Result(DefId),
 }
-fn parse_len_output<'tcx>(cx: &LateContext<'_>, sig: FnSig<'tcx>) -> Option<LenOutput<'tcx>> {
+
+fn extract_future_output<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<&'tcx PathSegment<'tcx>> {
+    if let ty::Alias(_, alias_ty) = ty.kind() &&
+        let Some(Node::Item(item)) = cx.tcx.hir().get_if_local(alias_ty.def_id) &&
+        let Item { kind: ItemKind::OpaqueTy(opaque), .. } = item &&
+        opaque.bounds.len() == 1 &&
+        let GenericBound::LangItemTrait(LangItem::Future, _, _, generic_args) = &opaque.bounds[0] &&
+        generic_args.bindings.len() == 1 &&
+        let TypeBindingKind::Equality {
+            term: rustc_hir::Term::Ty(rustc_hir::Ty {kind: TyKind::Path(QPath::Resolved(_, path)), .. }),
+        } = &generic_args.bindings[0].kind &&
+        path.segments.len() == 1 {
+            return Some(&path.segments[0]);
+        }
+
+    None
+}
+
+fn is_first_generic_integral<'tcx>(segment: &'tcx PathSegment<'tcx>) -> bool {
+    if let Some(generic_args) = segment.args {
+        if generic_args.args.is_empty() {
+            return false;
+        }
+        let arg = &generic_args.args[0];
+        if let GenericArg::Type(rustc_hir::Ty {
+            kind: TyKind::Path(QPath::Resolved(_, path)),
+            ..
+        }) = arg
+        {
+            let segments = &path.segments;
+            let segment = &segments[0];
+            let res = &segment.res;
+            if matches!(res, Res::PrimTy(PrimTy::Uint(_))) || matches!(res, Res::PrimTy(PrimTy::Int(_))) {
+                return true;
+            }
+        }
+    }
+
+    false
+}
+
+fn parse_len_output<'tcx>(cx: &LateContext<'tcx>, sig: FnSig<'tcx>) -> Option<LenOutput> {
+    if let Some(segment) = extract_future_output(cx, sig.output()) {
+        let res = segment.res;
+
+        if matches!(res, Res::PrimTy(PrimTy::Uint(_))) || matches!(res, Res::PrimTy(PrimTy::Int(_))) {
+            return Some(LenOutput::Integral);
+        }
+
+        if let Res::Def(_, def_id) = res {
+            if cx.tcx.is_diagnostic_item(sym::Option, def_id) && is_first_generic_integral(segment) {
+                return Some(LenOutput::Option(def_id));
+            } else if cx.tcx.is_diagnostic_item(sym::Result, def_id) && is_first_generic_integral(segment) {
+                return Some(LenOutput::Result(def_id));
+            }
+        }
+
+        return None;
+    }
+
     match *sig.output().kind() {
         ty::Int(_) | ty::Uint(_) => Some(LenOutput::Integral),
         ty::Adt(adt, subs) if cx.tcx.is_diagnostic_item(sym::Option, adt.did()) => {
             subs.type_at(0).is_integral().then(|| LenOutput::Option(adt.did()))
         },
-        ty::Adt(adt, subs) if cx.tcx.is_diagnostic_item(sym::Result, adt.did()) => subs
-            .type_at(0)
-            .is_integral()
-            .then(|| LenOutput::Result(adt.did(), subs.type_at(1))),
+        ty::Adt(adt, subs) if cx.tcx.is_diagnostic_item(sym::Result, adt.did()) => {
+            subs.type_at(0).is_integral().then(|| LenOutput::Result(adt.did()))
+        },
         _ => None,
     }
 }
 
-impl<'tcx> LenOutput<'tcx> {
-    fn matches_is_empty_output(self, ty: Ty<'tcx>) -> bool {
+impl LenOutput {
+    fn matches_is_empty_output<'tcx>(self, cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
+        if let Some(segment) = extract_future_output(cx, ty) {
+            return match (self, segment.res) {
+                (_, Res::PrimTy(PrimTy::Bool)) => true,
+                (Self::Option(_), Res::Def(_, def_id)) if cx.tcx.is_diagnostic_item(sym::Option, def_id) => true,
+                (Self::Result(_), Res::Def(_, def_id)) if cx.tcx.is_diagnostic_item(sym::Result, def_id) => true,
+                _ => false,
+            };
+        }
+
         match (self, ty.kind()) {
             (_, &ty::Bool) => true,
             (Self::Option(id), &ty::Adt(adt, subs)) if id == adt.did() => subs.type_at(0).is_bool(),
-            (Self::Result(id, err_ty), &ty::Adt(adt, subs)) if id == adt.did() => {
-                subs.type_at(0).is_bool() && subs.type_at(1) == err_ty
-            },
+            (Self::Result(id), &ty::Adt(adt, subs)) if id == adt.did() => subs.type_at(0).is_bool(),
             _ => false,
         }
     }
@@ -301,9 +366,14 @@ impl<'tcx> LenOutput<'tcx> {
 }
 
 /// Checks if the given signature matches the expectations for `is_empty`
-fn check_is_empty_sig<'tcx>(sig: FnSig<'tcx>, self_kind: ImplicitSelfKind, len_output: LenOutput<'tcx>) -> bool {
+fn check_is_empty_sig<'tcx>(
+    cx: &LateContext<'tcx>,
+    sig: FnSig<'tcx>,
+    self_kind: ImplicitSelfKind,
+    len_output: LenOutput,
+) -> bool {
     match &**sig.inputs_and_output {
-        [arg, res] if len_output.matches_is_empty_output(*res) => {
+        [arg, res] if len_output.matches_is_empty_output(cx, *res) => {
             matches!(
                 (arg.kind(), self_kind),
                 (ty::Ref(_, _, Mutability::Not), ImplicitSelfKind::ImmRef)
@@ -315,11 +385,11 @@ fn check_is_empty_sig<'tcx>(sig: FnSig<'tcx>, self_kind: ImplicitSelfKind, len_o
 }
 
 /// Checks if the given type has an `is_empty` method with the appropriate signature.
-fn check_for_is_empty<'tcx>(
-    cx: &LateContext<'tcx>,
+fn check_for_is_empty(
+    cx: &LateContext<'_>,
     span: Span,
     self_kind: ImplicitSelfKind,
-    output: LenOutput<'tcx>,
+    output: LenOutput,
     impl_ty: DefId,
     item_name: Symbol,
     item_kind: &str,
@@ -352,6 +422,7 @@ fn check_for_is_empty<'tcx>(
         Some(is_empty)
             if !(is_empty.fn_has_self_parameter
                 && check_is_empty_sig(
+                    cx,
                     cx.tcx.fn_sig(is_empty.def_id).subst_identity().skip_binder(),
                     self_kind,
                     output,
@@ -431,7 +502,7 @@ fn check_len(
                 &format!("using `{op}is_empty` is clearer and more explicit"),
                 format!(
                     "{op}{}.is_empty()",
-                    snippet_with_applicability(cx, receiver.span, "_", &mut applicability)
+                    snippet_with_context(cx, receiver.span, span.ctxt(), "_", &mut applicability).0,
                 ),
                 applicability,
             );
@@ -444,13 +515,7 @@ fn check_empty_expr(cx: &LateContext<'_>, span: Span, lit1: &Expr<'_>, lit2: &Ex
         let mut applicability = Applicability::MachineApplicable;
 
         let lit1 = peel_ref_operators(cx, lit1);
-        let mut lit_str = snippet_with_applicability(cx, lit1.span, "_", &mut applicability);
-
-        // Wrap the expression in parentheses if it's a deref expression. Otherwise operator precedence will
-        // cause the code to dereference boolean(won't compile).
-        if let ExprKind::Unary(UnOp::Deref, _) = lit1.kind {
-            lit_str = Cow::from(format!("({lit_str})"));
-        }
+        let lit_str = Sugg::hir_with_context(cx, lit1, span.ctxt(), "_", &mut applicability).maybe_par();
 
         span_lint_and_sugg(
             cx,
diff --git a/src/tools/clippy/clippy_lints/src/let_underscore.rs b/src/tools/clippy/clippy_lints/src/let_underscore.rs
index 7600777fa..51b5de27d 100644
--- a/src/tools/clippy/clippy_lints/src/let_underscore.rs
+++ b/src/tools/clippy/clippy_lints/src/let_underscore.rs
@@ -124,7 +124,7 @@ declare_clippy_lint! {
     /// ```
     #[clippy::version = "1.69.0"]
     pub LET_UNDERSCORE_UNTYPED,
-    pedantic,
+    restriction,
     "non-binding `let` without a type annotation"
 }
 
diff --git a/src/tools/clippy/clippy_lints/src/let_with_type_underscore.rs b/src/tools/clippy/clippy_lints/src/let_with_type_underscore.rs
new file mode 100644
index 000000000..c01e3882d
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/let_with_type_underscore.rs
@@ -0,0 +1,45 @@
+use clippy_utils::diagnostics::span_lint_and_help;
+use rustc_hir::{Local, TyKind};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_middle::lint::in_external_macro;
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Detects when a variable is declared with an explicit type of `_`.
+    /// ### Why is this bad?
+    /// It adds noise, `: _` provides zero clarity or utility.
+    /// ### Example
+    /// ```rust,ignore
+    /// let my_number: _ = 1;
+    /// ```
+    /// Use instead:
+    /// ```rust,ignore
+    /// let my_number = 1;
+    /// ```
+    #[clippy::version = "1.69.0"]
+    pub LET_WITH_TYPE_UNDERSCORE,
+    complexity,
+    "unneeded underscore type (`_`) in a variable declaration"
+}
+declare_lint_pass!(UnderscoreTyped => [LET_WITH_TYPE_UNDERSCORE]);
+
+impl LateLintPass<'_> for UnderscoreTyped {
+    fn check_local<'tcx>(&mut self, cx: &LateContext<'tcx>, local: &'tcx Local<'tcx>) {
+        if_chain! {
+            if !in_external_macro(cx.tcx.sess, local.span);
+            if let Some(ty) = local.ty; // Ensure that it has a type defined
+            if let TyKind::Infer = &ty.kind; // that type is '_'
+            if local.span.ctxt() == ty.span.ctxt();
+            then {
+                span_lint_and_help(cx,
+                    LET_WITH_TYPE_UNDERSCORE,
+                    local.span,
+                    "variable declared with type underscore",
+                    Some(ty.span.with_lo(local.pat.span.hi())),
+                    "remove the explicit type `_` declaration"
+                )
+            }
+        };
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/lib.rs b/src/tools/clippy/clippy_lints/src/lib.rs
index c626e0bd9..b0ec14855 100644
--- a/src/tools/clippy/clippy_lints/src/lib.rs
+++ b/src/tools/clippy/clippy_lints/src/lib.rs
@@ -1,13 +1,11 @@
 #![feature(array_windows)]
 #![feature(binary_heap_into_iter_sorted)]
 #![feature(box_patterns)]
-#![feature(drain_filter)]
 #![feature(if_let_guard)]
 #![feature(iter_intersperse)]
 #![feature(let_chains)]
 #![feature(lint_reasons)]
 #![feature(never_type)]
-#![feature(once_cell)]
 #![feature(rustc_private)]
 #![feature(stmt_expr_attributes)]
 #![recursion_limit = "512"]
@@ -67,6 +65,7 @@ mod declared_lints;
 mod renamed_lints;
 
 // begin lints modules, do not remove this comment, it’s used in `update_lints`
+mod allow_attributes;
 mod almost_complete_range;
 mod approx_const;
 mod as_conversions;
@@ -87,6 +86,7 @@ mod casts;
 mod checked_conversions;
 mod cognitive_complexity;
 mod collapsible_if;
+mod collection_is_never_read;
 mod comparison_chain;
 mod copies;
 mod copy_iterator;
@@ -161,12 +161,15 @@ mod items_after_statements;
 mod iter_not_returning_iterator;
 mod large_const_arrays;
 mod large_enum_variant;
+mod large_futures;
 mod large_include_file;
 mod large_stack_arrays;
 mod len_zero;
 mod let_if_seq;
 mod let_underscore;
+mod let_with_type_underscore;
 mod lifetimes;
+mod lines_filter_map_ok;
 mod literal_representation;
 mod loops;
 mod macro_use;
@@ -177,9 +180,11 @@ mod manual_bits;
 mod manual_clamp;
 mod manual_is_ascii_check;
 mod manual_let_else;
+mod manual_main_separator_str;
 mod manual_non_exhaustive;
 mod manual_rem_euclid;
 mod manual_retain;
+mod manual_slice_size_calculation;
 mod manual_string_new;
 mod manual_strip;
 mod map_unit_fn;
@@ -192,6 +197,7 @@ mod minmax;
 mod misc;
 mod misc_early;
 mod mismatching_type_param_order;
+mod missing_assert_message;
 mod missing_const_for_fn;
 mod missing_doc;
 mod missing_enforced_import_rename;
@@ -249,6 +255,7 @@ mod question_mark_used;
 mod ranges;
 mod rc_clone_in_vec_init;
 mod read_zero_byte_vec;
+mod redundant_async_block;
 mod redundant_clone;
 mod redundant_closure_call;
 mod redundant_else;
@@ -276,6 +283,7 @@ mod slow_vector_initialization;
 mod std_instead_of_core;
 mod strings;
 mod strlen_on_c_strings;
+mod suspicious_doc_comments;
 mod suspicious_operation_groupings;
 mod suspicious_trait_impl;
 mod suspicious_xor_used_as_pow;
@@ -283,6 +291,7 @@ mod swap;
 mod swap_ptr_to_ref;
 mod tabs_in_doc_comments;
 mod temporary_assignment;
+mod tests_outside_test_module;
 mod to_digit_is_some;
 mod trailing_empty_array;
 mod trait_bounds;
@@ -294,8 +303,10 @@ mod uninit_vec;
 mod unit_return_expecting_ord;
 mod unit_types;
 mod unnamed_address;
+mod unnecessary_box_returns;
 mod unnecessary_owned_empty_strings;
 mod unnecessary_self_imports;
+mod unnecessary_struct_initialization;
 mod unnecessary_wraps;
 mod unnested_or_patterns;
 mod unsafe_removed_from_name;
@@ -338,13 +349,17 @@ pub fn register_pre_expansion_lints(store: &mut rustc_lint::LintStore, sess: &Se
 }
 
 #[doc(hidden)]
-pub fn read_conf(sess: &Session, path: &io::Result<Option<PathBuf>>) -> Conf {
+pub fn read_conf(sess: &Session, path: &io::Result<(Option<PathBuf>, Vec<String>)>) -> Conf {
+    if let Ok((_, warnings)) = path {
+        for warning in warnings {
+            sess.warn(warning);
+        }
+    }
     let file_name = match path {
-        Ok(Some(path)) => path,
-        Ok(None) => return Conf::default(),
+        Ok((Some(path), _)) => path,
+        Ok((None, _)) => return Conf::default(),
         Err(error) => {
-            sess.struct_err(format!("error finding Clippy's configuration file: {error}"))
-                .emit();
+            sess.err(format!("error finding Clippy's configuration file: {error}"));
             return Conf::default();
         },
     };
@@ -533,6 +548,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
                 .collect(),
         ))
     });
+    store.register_early_pass(|| Box::new(utils::format_args_collector::FormatArgsCollector));
     store.register_late_pass(|_| Box::new(utils::dump_hir::DumpHir));
     store.register_late_pass(|_| Box::new(utils::author::Author));
     let await_holding_invalid_types = conf.await_holding_invalid_types.clone();
@@ -651,7 +667,8 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_late_pass(|_| Box::new(empty_enum::EmptyEnum));
     store.register_late_pass(|_| Box::new(invalid_upcast_comparisons::InvalidUpcastComparisons));
     store.register_late_pass(|_| Box::new(regex::Regex));
-    store.register_late_pass(|_| Box::new(copies::CopyAndPaste));
+    let ignore_interior_mutability = conf.ignore_interior_mutability.clone();
+    store.register_late_pass(move |_| Box::new(copies::CopyAndPaste::new(ignore_interior_mutability.clone())));
     store.register_late_pass(|_| Box::new(copy_iterator::CopyIterator));
     store.register_late_pass(|_| Box::new(format::UselessFormat));
     store.register_late_pass(|_| Box::new(swap::Swap));
@@ -738,7 +755,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_early_pass(|| Box::new(unused_unit::UnusedUnit));
     store.register_late_pass(|_| Box::new(returns::Return));
     store.register_early_pass(|| Box::new(collapsible_if::CollapsibleIf));
-    store.register_early_pass(|| Box::new(items_after_statements::ItemsAfterStatements));
+    store.register_late_pass(|_| Box::new(items_after_statements::ItemsAfterStatements));
     store.register_early_pass(|| Box::new(precedence::Precedence));
     store.register_late_pass(|_| Box::new(needless_parens_on_range_literals::NeedlessParensOnRangeLiterals));
     store.register_early_pass(|| Box::new(needless_continue::NeedlessContinue));
@@ -800,6 +817,8 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_late_pass(move |_| Box::new(dereference::Dereferencing::new(msrv())));
     store.register_late_pass(|_| Box::new(option_if_let_else::OptionIfLetElse));
     store.register_late_pass(|_| Box::new(future_not_send::FutureNotSend));
+    let future_size_threshold = conf.future_size_threshold;
+    store.register_late_pass(move |_| Box::new(large_futures::LargeFuture::new(future_size_threshold)));
     store.register_late_pass(|_| Box::new(if_let_mutex::IfLetMutex));
     store.register_late_pass(|_| Box::new(if_not_else::IfNotElse));
     store.register_late_pass(|_| Box::new(equatable_if_let::PatternEquality));
@@ -924,6 +943,22 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         ))
     });
     store.register_late_pass(|_| Box::new(no_mangle_with_rust_abi::NoMangleWithRustAbi));
+    store.register_late_pass(|_| Box::new(collection_is_never_read::CollectionIsNeverRead));
+    store.register_late_pass(|_| Box::new(missing_assert_message::MissingAssertMessage));
+    store.register_late_pass(|_| Box::new(redundant_async_block::RedundantAsyncBlock));
+    store.register_late_pass(|_| Box::new(let_with_type_underscore::UnderscoreTyped));
+    store.register_late_pass(|_| Box::new(allow_attributes::AllowAttribute));
+    store.register_late_pass(move |_| Box::new(manual_main_separator_str::ManualMainSeparatorStr::new(msrv())));
+    store.register_late_pass(|_| Box::new(unnecessary_struct_initialization::UnnecessaryStruct));
+    store.register_late_pass(move |_| {
+        Box::new(unnecessary_box_returns::UnnecessaryBoxReturns::new(
+            avoid_breaking_exported_api,
+        ))
+    });
+    store.register_late_pass(|_| Box::new(lines_filter_map_ok::LinesFilterMapOk));
+    store.register_late_pass(|_| Box::new(tests_outside_test_module::TestsOutsideTestModule));
+    store.register_late_pass(|_| Box::new(manual_slice_size_calculation::ManualSliceSizeCalculation));
+    store.register_early_pass(|| Box::new(suspicious_doc_comments::SuspiciousDocComments));
     // add lints here, do not remove this comment, it's used in `new_lint`
 }
 
diff --git a/src/tools/clippy/clippy_lints/src/lines_filter_map_ok.rs b/src/tools/clippy/clippy_lints/src/lines_filter_map_ok.rs
new file mode 100644
index 000000000..b0f927647
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/lines_filter_map_ok.rs
@@ -0,0 +1,100 @@
+use clippy_utils::{
+    diagnostics::span_lint_and_then, is_diag_item_method, is_trait_method, match_def_path, path_to_local_id, paths,
+    ty::match_type,
+};
+use rustc_errors::Applicability;
+use rustc_hir::{Body, Closure, Expr, ExprKind};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::sym;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Detect uses of `lines.filter_map(Result::ok)` or `lines.flat_map(Result::ok)`
+    /// when `lines` has type `std::io::Lines`.
+    ///
+    /// ### Why is this bad?
+    /// `Lines` instances might produce a never-ending stream of `Err`, in which case
+    /// `filter_map(Result::ok)` will enter an infinite loop while waiting for an
+    /// `Ok` variant. Calling `next()` once is sufficient to enter the infinite loop,
+    /// even in the absence of explicit loops in the user code.
+    ///
+    /// This situation can arise when working with user-provided paths. On some platforms,
+    /// `std::fs::File::open(path)` might return `Ok(fs)` even when `path` is a directory,
+    /// but any later attempt to read from `fs` will return an error.
+    ///
+    /// ### Known problems
+    /// This lint suggests replacing `filter_map()` or `flat_map()` applied to a `Lines`
+    /// instance in all cases. There two cases where the suggestion might not be
+    /// appropriate or necessary:
+    ///
+    /// - If the `Lines` instance can never produce any error, or if an error is produced
+    ///   only once just before terminating the iterator, using `map_while()` is not
+    ///   necessary but will not do any harm.
+    /// - If the `Lines` instance can produce intermittent errors then recover and produce
+    ///   successful results, using `map_while()` would stop at the first error.
+    ///
+    /// ### Example
+    /// ```rust
+    /// # use std::{fs::File, io::{self, BufRead, BufReader}};
+    /// # let _ = || -> io::Result<()> {
+    /// let mut lines = BufReader::new(File::open("some-path")?).lines().filter_map(Result::ok);
+    /// // If "some-path" points to a directory, the next statement never terminates:
+    /// let first_line: Option<String> = lines.next();
+    /// # Ok(()) };
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// # use std::{fs::File, io::{self, BufRead, BufReader}};
+    /// # let _ = || -> io::Result<()> {
+    /// let mut lines = BufReader::new(File::open("some-path")?).lines().map_while(Result::ok);
+    /// let first_line: Option<String> = lines.next();
+    /// # Ok(()) };
+    /// ```
+    #[clippy::version = "1.70.0"]
+    pub LINES_FILTER_MAP_OK,
+    suspicious,
+    "filtering `std::io::Lines` with `filter_map()` or `flat_map()` might cause an infinite loop"
+}
+declare_lint_pass!(LinesFilterMapOk => [LINES_FILTER_MAP_OK]);
+
+impl LateLintPass<'_> for LinesFilterMapOk {
+    fn check_expr(&mut self, cx: &LateContext<'_>, expr: &Expr<'_>) {
+        if let ExprKind::MethodCall(fm_method, fm_receiver, [fm_arg], fm_span) = expr.kind &&
+            is_trait_method(cx, expr, sym::Iterator) &&
+            (fm_method.ident.as_str() == "filter_map" || fm_method.ident.as_str() == "flat_map") &&
+            match_type(cx, cx.typeck_results().expr_ty_adjusted(fm_receiver), &paths::STD_IO_LINES)
+        {
+            let lint = match &fm_arg.kind {
+                // Detect `Result::ok`
+                ExprKind::Path(qpath) =>
+                    cx.qpath_res(qpath, fm_arg.hir_id).opt_def_id().map(|did|
+                        match_def_path(cx, did, &paths::CORE_RESULT_OK_METHOD)).unwrap_or_default(),
+                // Detect `|x| x.ok()`
+                ExprKind::Closure(Closure { body, .. }) =>
+                    if let Body { params: [param], value, .. } = cx.tcx.hir().body(*body) &&
+                        let ExprKind::MethodCall(method, receiver, [], _) = value.kind &&
+                        path_to_local_id(receiver, param.pat.hir_id) &&
+                        let Some(method_did) = cx.typeck_results().type_dependent_def_id(value.hir_id)
+                    {
+                        is_diag_item_method(cx, method_did, sym::Result) && method.ident.as_str() == "ok"
+                    } else {
+                        false
+                    }
+                _ => false,
+            };
+            if lint {
+                span_lint_and_then(cx,
+                    LINES_FILTER_MAP_OK,
+                    fm_span,
+                    &format!("`{}()` will run forever if the iterator repeatedly produces an `Err`", fm_method.ident),
+                    |diag| {
+                        diag.span_note(
+                            fm_receiver.span,
+                            "this expression returning a `std::io::Lines` may produce an infinite number of `Err` in case of a read error");
+                        diag.span_suggestion(fm_span, "replace with", "map_while(Result::ok)", Applicability::MaybeIncorrect);
+                    });
+                }
+        }
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/loops/manual_flatten.rs b/src/tools/clippy/clippy_lints/src/loops/manual_flatten.rs
index 8c27c0940..1e02a30e3 100644
--- a/src/tools/clippy/clippy_lints/src/loops/manual_flatten.rs
+++ b/src/tools/clippy/clippy_lints/src/loops/manual_flatten.rs
@@ -9,7 +9,7 @@ use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{Expr, Pat, PatKind};
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, DefIdTree};
+use rustc_middle::ty;
 use rustc_span::source_map::Span;
 
 /// Check for unnecessary `if let` usage in a for loop where only the `Some` or `Ok` variant of the
diff --git a/src/tools/clippy/clippy_lints/src/loops/never_loop.rs b/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
index b1bc10802..f0a1b1dfe 100644
--- a/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
+++ b/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
@@ -124,8 +124,7 @@ fn stmt_to_expr<'tcx>(stmt: &Stmt<'tcx>) -> Option<(&'tcx Expr<'tcx>, Option<&'t
 #[allow(clippy::too_many_lines)]
 fn never_loop_expr(expr: &Expr<'_>, ignore_ids: &mut Vec<HirId>, main_loop_id: HirId) -> NeverLoopResult {
     match expr.kind {
-        ExprKind::Box(e)
-        | ExprKind::Unary(_, e)
+        ExprKind::Unary(_, e)
         | ExprKind::Cast(e, _)
         | ExprKind::Type(e, _)
         | ExprKind::Field(e, _)
diff --git a/src/tools/clippy/clippy_lints/src/loops/same_item_push.rs b/src/tools/clippy/clippy_lints/src/loops/same_item_push.rs
index 540656a2c..9d9341559 100644
--- a/src/tools/clippy/clippy_lints/src/loops/same_item_push.rs
+++ b/src/tools/clippy/clippy_lints/src/loops/same_item_push.rs
@@ -1,15 +1,17 @@
 use super::SAME_ITEM_PUSH;
 use clippy_utils::diagnostics::span_lint_and_help;
 use clippy_utils::path_to_local;
-use clippy_utils::source::snippet_with_macro_callsite;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::ty::{implements_trait, is_type_diagnostic_item};
 use if_chain::if_chain;
 use rustc_data_structures::fx::FxHashSet;
+use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::intravisit::{walk_expr, Visitor};
 use rustc_hir::{BindingAnnotation, Block, Expr, ExprKind, HirId, Mutability, Node, Pat, PatKind, Stmt, StmtKind};
 use rustc_lint::LateContext;
 use rustc_span::symbol::sym;
+use rustc_span::SyntaxContext;
 use std::iter::Iterator;
 
 /// Detects for loop pushing the same item into a Vec
@@ -20,9 +22,10 @@ pub(super) fn check<'tcx>(
     body: &'tcx Expr<'_>,
     _: &'tcx Expr<'_>,
 ) {
-    fn emit_lint(cx: &LateContext<'_>, vec: &Expr<'_>, pushed_item: &Expr<'_>) {
-        let vec_str = snippet_with_macro_callsite(cx, vec.span, "");
-        let item_str = snippet_with_macro_callsite(cx, pushed_item.span, "");
+    fn emit_lint(cx: &LateContext<'_>, vec: &Expr<'_>, pushed_item: &Expr<'_>, ctxt: SyntaxContext) {
+        let mut app = Applicability::Unspecified;
+        let vec_str = snippet_with_context(cx, vec.span, ctxt, "", &mut app).0;
+        let item_str = snippet_with_context(cx, pushed_item.span, ctxt, "", &mut app).0;
 
         span_lint_and_help(
             cx,
@@ -43,7 +46,7 @@ pub(super) fn check<'tcx>(
     walk_expr(&mut same_item_push_visitor, body);
     if_chain! {
         if same_item_push_visitor.should_lint();
-        if let Some((vec, pushed_item)) = same_item_push_visitor.vec_push;
+        if let Some((vec, pushed_item, ctxt)) = same_item_push_visitor.vec_push;
         let vec_ty = cx.typeck_results().expr_ty(vec);
         let ty = vec_ty.walk().nth(1).unwrap().expect_ty();
         if cx
@@ -69,11 +72,11 @@ pub(super) fn check<'tcx>(
                                 then {
                                     match init.kind {
                                         // immutable bindings that are initialized with literal
-                                        ExprKind::Lit(..) => emit_lint(cx, vec, pushed_item),
+                                        ExprKind::Lit(..) => emit_lint(cx, vec, pushed_item, ctxt),
                                         // immutable bindings that are initialized with constant
                                         ExprKind::Path(ref path) => {
                                             if let Res::Def(DefKind::Const, ..) = cx.qpath_res(path, init.hir_id) {
-                                                emit_lint(cx, vec, pushed_item);
+                                                emit_lint(cx, vec, pushed_item, ctxt);
                                             }
                                         }
                                         _ => {},
@@ -82,11 +85,11 @@ pub(super) fn check<'tcx>(
                             }
                         },
                         // constant
-                        Res::Def(DefKind::Const, ..) => emit_lint(cx, vec, pushed_item),
+                        Res::Def(DefKind::Const, ..) => emit_lint(cx, vec, pushed_item, ctxt),
                         _ => {},
                     }
                 },
-                ExprKind::Lit(..) => emit_lint(cx, vec, pushed_item),
+                ExprKind::Lit(..) => emit_lint(cx, vec, pushed_item, ctxt),
                 _ => {},
             }
         }
@@ -98,7 +101,7 @@ struct SameItemPushVisitor<'a, 'tcx> {
     non_deterministic_expr: bool,
     multiple_pushes: bool,
     // this field holds the last vec push operation visited, which should be the only push seen
-    vec_push: Option<(&'tcx Expr<'tcx>, &'tcx Expr<'tcx>)>,
+    vec_push: Option<(&'tcx Expr<'tcx>, &'tcx Expr<'tcx>, SyntaxContext)>,
     cx: &'a LateContext<'tcx>,
     used_locals: FxHashSet<HirId>,
 }
@@ -118,7 +121,7 @@ impl<'a, 'tcx> SameItemPushVisitor<'a, 'tcx> {
         if_chain! {
             if !self.non_deterministic_expr;
             if !self.multiple_pushes;
-            if let Some((vec, _)) = self.vec_push;
+            if let Some((vec, _, _)) = self.vec_push;
             if let Some(hir_id) = path_to_local(vec);
             then {
                 !self.used_locals.contains(&hir_id)
@@ -173,7 +176,10 @@ impl<'a, 'tcx> Visitor<'tcx> for SameItemPushVisitor<'a, 'tcx> {
 
 // Given some statement, determine if that statement is a push on a Vec. If it is, return
 // the Vec being pushed into and the item being pushed
-fn get_vec_push<'tcx>(cx: &LateContext<'tcx>, stmt: &'tcx Stmt<'_>) -> Option<(&'tcx Expr<'tcx>, &'tcx Expr<'tcx>)> {
+fn get_vec_push<'tcx>(
+    cx: &LateContext<'tcx>,
+    stmt: &'tcx Stmt<'_>,
+) -> Option<(&'tcx Expr<'tcx>, &'tcx Expr<'tcx>, SyntaxContext)> {
     if_chain! {
             // Extract method being called
             if let StmtKind::Semi(semi_stmt) = &stmt.kind;
@@ -184,7 +190,7 @@ fn get_vec_push<'tcx>(cx: &LateContext<'tcx>, stmt: &'tcx Stmt<'_>) -> Option<(&
             if is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(self_expr), sym::Vec);
             if path.ident.name.as_str() == "push";
             then {
-                return Some((self_expr, pushed_item))
+                return Some((self_expr, pushed_item, semi_stmt.span.ctxt()))
             }
     }
     None
diff --git a/src/tools/clippy/clippy_lints/src/manual_async_fn.rs b/src/tools/clippy/clippy_lints/src/manual_async_fn.rs
index 3778eb4c7..577bc1d66 100644
--- a/src/tools/clippy/clippy_lints/src/manual_async_fn.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_async_fn.rs
@@ -1,12 +1,11 @@
 use clippy_utils::diagnostics::span_lint_and_then;
-use clippy_utils::match_function_call_with_def_id;
 use clippy_utils::source::{position_before_rarrow, snippet_block, snippet_opt};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir::intravisit::FnKind;
 use rustc_hir::{
     AsyncGeneratorKind, Block, Body, Closure, Expr, ExprKind, FnDecl, FnRetTy, GeneratorKind, GenericArg, GenericBound,
-    ItemKind, LifetimeName, Term, TraitRef, Ty, TyKind, TypeBindingKind,
+    ImplItem, Item, ItemKind, LifetimeName, Node, Term, TraitRef, Ty, TyKind, TypeBindingKind,
 };
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
@@ -46,7 +45,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualAsyncFn {
         decl: &'tcx FnDecl<'_>,
         body: &'tcx Body<'_>,
         span: Span,
-        _: LocalDefId,
+        def_id: LocalDefId,
     ) {
         if_chain! {
             if let Some(header) = kind.header();
@@ -60,6 +59,8 @@ impl<'tcx> LateLintPass<'tcx> for ManualAsyncFn {
             if let ExprKind::Block(block, _) = body.value.kind;
             if block.stmts.is_empty();
             if let Some(closure_body) = desugared_async_block(cx, block);
+            if let Node::Item(Item {vis_span, ..}) | Node::ImplItem(ImplItem {vis_span, ..}) =
+                cx.tcx.hir().get_by_def_id(def_id);
             then {
                 let header_span = span.with_hi(ret_ty.span.hi());
 
@@ -70,15 +71,22 @@ impl<'tcx> LateLintPass<'tcx> for ManualAsyncFn {
                     "this function can be simplified using the `async fn` syntax",
                     |diag| {
                         if_chain! {
+                            if let Some(vis_snip) = snippet_opt(cx, *vis_span);
                             if let Some(header_snip) = snippet_opt(cx, header_span);
                             if let Some(ret_pos) = position_before_rarrow(&header_snip);
                             if let Some((ret_sugg, ret_snip)) = suggested_ret(cx, output);
                             then {
+                                let header_snip = if vis_snip.is_empty() {
+                                    format!("async {}", &header_snip[..ret_pos])
+                                } else {
+                                    format!("{} async {}", vis_snip, &header_snip[vis_snip.len() + 1..ret_pos])
+                                };
+
                                 let help = format!("make the function `async` and {ret_sugg}");
                                 diag.span_suggestion(
                                     header_span,
                                     help,
-                                    format!("async {}{ret_snip}", &header_snip[..ret_pos]),
+                                    format!("{header_snip}{ret_snip}"),
                                     Applicability::MachineApplicable
                                 );
 
@@ -175,16 +183,10 @@ fn captures_all_lifetimes(inputs: &[Ty<'_>], output_lifetimes: &[LifetimeName])
 fn desugared_async_block<'tcx>(cx: &LateContext<'tcx>, block: &'tcx Block<'tcx>) -> Option<&'tcx Body<'tcx>> {
     if_chain! {
         if let Some(block_expr) = block.expr;
-        if let Some(args) = cx
-            .tcx
-            .lang_items()
-            .identity_future_fn()
-            .and_then(|def_id| match_function_call_with_def_id(cx, block_expr, def_id));
-        if args.len() == 1;
         if let Expr {
             kind: ExprKind::Closure(&Closure { body, .. }),
             ..
-        } = args[0];
+        } = block_expr;
         let closure_body = cx.tcx.hir().body(body);
         if closure_body.generator_kind == Some(GeneratorKind::Async(AsyncGeneratorKind::Block));
         then {
diff --git a/src/tools/clippy/clippy_lints/src/manual_bits.rs b/src/tools/clippy/clippy_lints/src/manual_bits.rs
index 462d73cf0..bc815dc4a 100644
--- a/src/tools/clippy/clippy_lints/src/manual_bits.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_bits.rs
@@ -1,11 +1,12 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::get_parent_expr;
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::snippet_with_context;
 use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::{BinOpKind, Expr, ExprKind, GenericArg, QPath};
-use rustc_lint::{LateContext, LateLintPass};
+use rustc_lint::{LateContext, LateLintPass, LintContext};
+use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty::{self, Ty};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::sym;
@@ -55,13 +56,17 @@ impl<'tcx> LateLintPass<'tcx> for ManualBits {
         if_chain! {
             if let ExprKind::Binary(bin_op, left_expr, right_expr) = expr.kind;
             if let BinOpKind::Mul = &bin_op.node;
+            if !in_external_macro(cx.sess(), expr.span);
+            let ctxt = expr.span.ctxt();
+            if left_expr.span.ctxt() == ctxt;
+            if right_expr.span.ctxt() == ctxt;
             if let Some((real_ty, resolved_ty, other_expr)) = get_one_size_of_ty(cx, left_expr, right_expr);
             if matches!(resolved_ty.kind(), ty::Int(_) | ty::Uint(_));
             if let ExprKind::Lit(lit) = &other_expr.kind;
             if let LitKind::Int(8, _) = lit.node;
             then {
                 let mut app = Applicability::MachineApplicable;
-                let ty_snip = snippet_with_applicability(cx, real_ty.span, "..", &mut app);
+                let ty_snip = snippet_with_context(cx, real_ty.span, ctxt, "..", &mut app).0;
                 let sugg = create_sugg(cx, expr, format!("{ty_snip}::BITS"));
 
                 span_lint_and_sugg(
diff --git a/src/tools/clippy/clippy_lints/src/manual_clamp.rs b/src/tools/clippy/clippy_lints/src/manual_clamp.rs
index f239736d3..440362b96 100644
--- a/src/tools/clippy/clippy_lints/src/manual_clamp.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_clamp.rs
@@ -6,7 +6,8 @@ use clippy_utils::ty::implements_trait;
 use clippy_utils::visitors::is_const_evaluatable;
 use clippy_utils::MaybePath;
 use clippy_utils::{
-    eq_expr_value, is_diag_trait_item, is_trait_method, path_res, path_to_local_id, peel_blocks, peel_blocks_with_stmt,
+    eq_expr_value, in_constant, is_diag_trait_item, is_trait_method, path_res, path_to_local_id, peel_blocks,
+    peel_blocks_with_stmt,
 };
 use itertools::Itertools;
 use rustc_errors::Applicability;
@@ -117,7 +118,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualClamp {
         if !self.msrv.meets(msrvs::CLAMP) {
             return;
         }
-        if !expr.span.from_expansion() {
+        if !expr.span.from_expansion() && !in_constant(cx, expr.hir_id) {
             let suggestion = is_if_elseif_else_pattern(cx, expr)
                 .or_else(|| is_max_min_pattern(cx, expr))
                 .or_else(|| is_call_max_min_pattern(cx, expr))
@@ -130,7 +131,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualClamp {
     }
 
     fn check_block(&mut self, cx: &LateContext<'tcx>, block: &'tcx Block<'tcx>) {
-        if !self.msrv.meets(msrvs::CLAMP) {
+        if !self.msrv.meets(msrvs::CLAMP) || in_constant(cx, block.hir_id) {
             return;
         }
         for suggestion in is_two_if_pattern(cx, block) {
diff --git a/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs b/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs
index 2fd32c009..31264261f 100644
--- a/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs
@@ -1,5 +1,5 @@
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::{diagnostics::span_lint_and_sugg, higher, in_constant, macros::root_macro_call, source::snippet};
+use clippy_utils::{diagnostics::span_lint_and_sugg, higher, in_constant, macros::root_macro_call, sugg::Sugg};
 use rustc_ast::ast::RangeLimits;
 use rustc_ast::LitKind::{Byte, Char};
 use rustc_errors::Applicability;
@@ -115,15 +115,8 @@ fn check_is_ascii(cx: &LateContext<'_>, span: Span, recv: &Expr<'_>, range: &Cha
         CharRange::Otherwise => None,
     } {
         let default_snip = "..";
-        // `snippet_with_applicability` may set applicability to `MaybeIncorrect` for
-        // macro span, so we check applicability manually by comparing `recv` is not default.
-        let recv = snippet(cx, recv.span, default_snip);
-
-        let applicability = if recv == default_snip {
-            Applicability::HasPlaceholders
-        } else {
-            Applicability::MachineApplicable
-        };
+        let mut app = Applicability::MachineApplicable;
+        let recv = Sugg::hir_with_context(cx, recv, span.ctxt(), default_snip, &mut app).maybe_par();
 
         span_lint_and_sugg(
             cx,
@@ -132,7 +125,7 @@ fn check_is_ascii(cx: &LateContext<'_>, span: Span, recv: &Expr<'_>, range: &Cha
             "manual check for common ascii range",
             "try",
             format!("{recv}.{sugg}()"),
-            applicability,
+            app,
         );
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/manual_main_separator_str.rs b/src/tools/clippy/clippy_lints/src/manual_main_separator_str.rs
new file mode 100644
index 000000000..c292bbe4e
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/manual_main_separator_str.rs
@@ -0,0 +1,74 @@
+use clippy_utils::diagnostics::span_lint_and_sugg;
+use clippy_utils::msrvs::{self, Msrv};
+use clippy_utils::{is_trait_method, match_def_path, paths, peel_hir_expr_refs};
+use rustc_errors::Applicability;
+use rustc_hir::def::{DefKind, Res};
+use rustc_hir::{Expr, ExprKind, Mutability, QPath};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_middle::ty;
+use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::sym;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks for references on `std::path::MAIN_SEPARATOR.to_string()` used
+    /// to build a `&str`.
+    ///
+    /// ### Why is this bad?
+    /// There exists a `std::path::MAIN_SEPARATOR_STR` which does not require
+    /// an extra memory allocation.
+    ///
+    /// ### Example
+    /// ```rust
+    /// let s: &str = &std::path::MAIN_SEPARATOR.to_string();
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// let s: &str = std::path::MAIN_SEPARATOR_STR;
+    /// ```
+    #[clippy::version = "1.70.0"]
+    pub MANUAL_MAIN_SEPARATOR_STR,
+    complexity,
+    "`&std::path::MAIN_SEPARATOR.to_string()` can be replaced by `std::path::MAIN_SEPARATOR_STR`"
+}
+
+pub struct ManualMainSeparatorStr {
+    msrv: Msrv,
+}
+
+impl ManualMainSeparatorStr {
+    #[must_use]
+    pub fn new(msrv: Msrv) -> Self {
+        Self { msrv }
+    }
+}
+
+impl_lint_pass!(ManualMainSeparatorStr => [MANUAL_MAIN_SEPARATOR_STR]);
+
+impl LateLintPass<'_> for ManualMainSeparatorStr {
+    fn check_expr(&mut self, cx: &LateContext<'_>, expr: &Expr<'_>) {
+        if self.msrv.meets(msrvs::PATH_MAIN_SEPARATOR_STR) &&
+            let (target, _) = peel_hir_expr_refs(expr) &&
+            is_trait_method(cx, target, sym::ToString) &&
+            let ExprKind::MethodCall(path, receiver, &[], _) = target.kind &&
+            path.ident.name == sym::to_string &&
+            let ExprKind::Path(QPath::Resolved(None, path)) = receiver.kind &&
+            let Res::Def(DefKind::Const, receiver_def_id) = path.res &&
+            match_def_path(cx, receiver_def_id, &paths::PATH_MAIN_SEPARATOR) &&
+            let ty::Ref(_, ty, Mutability::Not) = cx.typeck_results().expr_ty_adjusted(expr).kind() &&
+            ty.is_str()
+            {
+                span_lint_and_sugg(
+                    cx,
+                    MANUAL_MAIN_SEPARATOR_STR,
+                    expr.span,
+                    "taking a reference on `std::path::MAIN_SEPARATOR` conversion to `String`",
+                    "replace with",
+                    "std::path::MAIN_SEPARATOR_STR".to_owned(),
+                    Applicability::MachineApplicable,
+                );
+            }
+    }
+
+    extract_msrv_attr!(LateContext);
+}
diff --git a/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs b/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs
index 9a84068d4..0e22485db 100644
--- a/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs
@@ -8,7 +8,6 @@ use rustc_errors::Applicability;
 use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res};
 use rustc_hir::{self as hir, Expr, ExprKind, QPath};
 use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext};
-use rustc_middle::ty::DefIdTree;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::def_id::{DefId, LocalDefId};
 use rustc_span::{sym, Span};
diff --git a/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs b/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs
index 38f41d077..aafee9271 100644
--- a/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs
+++ b/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs
@@ -1,7 +1,7 @@
 use clippy_utils::consts::{constant_full_int, FullInt};
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::{in_constant, path_to_local};
 use rustc_errors::Applicability;
 use rustc_hir::{BinOpKind, Expr, ExprKind, Node, TyKind};
@@ -60,12 +60,16 @@ impl<'tcx> LateLintPass<'tcx> for ManualRemEuclid {
             return;
         }
 
+        // (x % c + c) % c
         if let ExprKind::Binary(op1, expr1, right) = expr.kind
             && op1.node == BinOpKind::Rem
+            && let ctxt = expr.span.ctxt()
+            && expr1.span.ctxt() == ctxt
             && let Some(const1) = check_for_unsigned_int_constant(cx, right)
             && let ExprKind::Binary(op2, left, right) = expr1.kind
             && op2.node == BinOpKind::Add
             && let Some((const2, expr2)) = check_for_either_unsigned_int_constant(cx, left, right)
+            && expr2.span.ctxt() == ctxt
             && let ExprKind::Binary(op3, expr3, right) = expr2.kind
             && op3.node == BinOpKind::Rem
             && let Some(const3) = check_for_unsigned_int_constant(cx, right)
@@ -86,7 +90,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualRemEuclid {
                 };
 
                 let mut app = Applicability::MachineApplicable;
-                let rem_of = snippet_with_applicability(cx, expr3.span, "_", &mut app);
+                let rem_of = snippet_with_context(cx, expr3.span, ctxt, "_", &mut app).0;
                 span_lint_and_sugg(
                     cx,
                     MANUAL_REM_EUCLID,
diff --git a/src/tools/clippy/clippy_lints/src/manual_slice_size_calculation.rs b/src/tools/clippy/clippy_lints/src/manual_slice_size_calculation.rs
new file mode 100644
index 000000000..92ee79453
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/manual_slice_size_calculation.rs
@@ -0,0 +1,93 @@
+use clippy_utils::diagnostics::span_lint_and_help;
+use clippy_utils::{expr_or_init, in_constant};
+use rustc_hir::{BinOpKind, Expr, ExprKind};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_middle::ty;
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::symbol::sym;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// When `a` is `&[T]`, detect `a.len() * size_of::<T>()` and suggest `size_of_val(a)`
+    /// instead.
+    ///
+    /// ### Why is this better?
+    /// * Shorter to write
+    /// * Removes the need for the human and the compiler to worry about overflow in the
+    ///   multiplication
+    /// * Potentially faster at runtime as rust emits special no-wrapping flags when it
+    ///   calculates the byte length
+    /// * Less turbofishing
+    ///
+    /// ### Example
+    /// ```rust
+    /// # let data : &[i32] = &[1, 2, 3];
+    /// let newlen = data.len() * std::mem::size_of::<i32>();
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// # let data : &[i32] = &[1, 2, 3];
+    /// let newlen = std::mem::size_of_val(data);
+    /// ```
+    #[clippy::version = "1.70.0"]
+    pub MANUAL_SLICE_SIZE_CALCULATION,
+    complexity,
+    "manual slice size calculation"
+}
+declare_lint_pass!(ManualSliceSizeCalculation => [MANUAL_SLICE_SIZE_CALCULATION]);
+
+impl<'tcx> LateLintPass<'tcx> for ManualSliceSizeCalculation {
+    fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) {
+        // Does not apply inside const because size_of_value is not cost in stable.
+        if !in_constant(cx, expr.hir_id)
+            && let ExprKind::Binary(ref op, left, right) = expr.kind
+            && BinOpKind::Mul == op.node
+            && let Some(_receiver) = simplify(cx, left, right)
+        {
+            span_lint_and_help(
+                cx,
+                MANUAL_SLICE_SIZE_CALCULATION,
+                expr.span,
+                "manual slice size calculation",
+                None,
+                "consider using std::mem::size_of_value instead");
+        }
+    }
+}
+
+fn simplify<'tcx>(
+    cx: &LateContext<'tcx>,
+    expr1: &'tcx Expr<'tcx>,
+    expr2: &'tcx Expr<'tcx>,
+) -> Option<&'tcx Expr<'tcx>> {
+    let expr1 = expr_or_init(cx, expr1);
+    let expr2 = expr_or_init(cx, expr2);
+
+    simplify_half(cx, expr1, expr2).or_else(|| simplify_half(cx, expr2, expr1))
+}
+
+fn simplify_half<'tcx>(
+    cx: &LateContext<'tcx>,
+    expr1: &'tcx Expr<'tcx>,
+    expr2: &'tcx Expr<'tcx>,
+) -> Option<&'tcx Expr<'tcx>> {
+    if
+        // expr1 is `[T1].len()`?
+        let ExprKind::MethodCall(method_path, receiver, _, _) = expr1.kind
+        && method_path.ident.name == sym::len
+        && let receiver_ty = cx.typeck_results().expr_ty(receiver)
+        && let ty::Slice(ty1) = receiver_ty.peel_refs().kind()
+        // expr2 is `size_of::<T2>()`?
+        && let ExprKind::Call(func, _) = expr2.kind
+        && let ExprKind::Path(ref func_qpath) = func.kind
+        && let Some(def_id) = cx.qpath_res(func_qpath, func.hir_id).opt_def_id()
+        && cx.tcx.is_diagnostic_item(sym::mem_size_of, def_id)
+        && let Some(ty2) = cx.typeck_results().node_substs(func.hir_id).types().next()
+        // T1 == T2?
+        && *ty1 == ty2
+    {
+        Some(receiver)
+    } else {
+        None
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/match_result_ok.rs b/src/tools/clippy/clippy_lints/src/match_result_ok.rs
index a020282d2..6ec978403 100644
--- a/src/tools/clippy/clippy_lints/src/match_result_ok.rs
+++ b/src/tools/clippy/clippy_lints/src/match_result_ok.rs
@@ -1,11 +1,11 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::higher;
-use clippy_utils::method_chain_args;
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::is_res_lang_ctor;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::ty::is_type_diagnostic_item;
 use if_chain::if_chain;
 use rustc_errors::Applicability;
-use rustc_hir::{Expr, ExprKind, PatKind, QPath};
+use rustc_hir::{Expr, ExprKind, LangItem, PatKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::sym;
@@ -58,17 +58,18 @@ impl<'tcx> LateLintPass<'tcx> for MatchResultOk {
             };
 
         if_chain! {
-            if let ExprKind::MethodCall(ok_path, result_types_0, ..) = let_expr.kind; //check is expr.ok() has type Result<T,E>.ok(, _)
-            if let PatKind::TupleStruct(QPath::Resolved(_, x), y, _)  = let_pat.kind; //get operation
-            if method_chain_args(let_expr, &["ok"]).is_some(); //test to see if using ok() method use std::marker::Sized;
-            if is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(result_types_0), sym::Result);
-            if rustc_hir_pretty::to_string(rustc_hir_pretty::NO_ANN, |s| s.print_path(x, false)) == "Some";
-
+            if let ExprKind::MethodCall(ok_path, recv, [], ..) = let_expr.kind; //check is expr.ok() has type Result<T,E>.ok(, _)
+            if let PatKind::TupleStruct(ref pat_path, [ok_pat], _)  = let_pat.kind; //get operation
+            if ok_path.ident.as_str() == "ok";
+            if is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Result);
+            if is_res_lang_ctor(cx, cx.qpath_res(pat_path, let_pat.hir_id), LangItem::OptionSome);
+            let ctxt = expr.span.ctxt();
+            if let_expr.span.ctxt() == ctxt;
+            if let_pat.span.ctxt() == ctxt;
             then {
-
                 let mut applicability = Applicability::MachineApplicable;
-                let some_expr_string = snippet_with_applicability(cx, y[0].span, "", &mut applicability);
-                let trimmed_ok = snippet_with_applicability(cx, let_expr.span.until(ok_path.ident.span), "", &mut applicability);
+                let some_expr_string = snippet_with_context(cx, ok_pat.span, ctxt, "", &mut applicability).0;
+                let trimmed_ok = snippet_with_context(cx, recv.span, ctxt, "", &mut applicability).0;
                 let sugg = format!(
                     "{ifwhile} let Ok({some_expr_string}) = {}",
                     trimmed_ok.trim().trim_end_matches('.'),
diff --git a/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs b/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs
index 587c926dc..b94501bf0 100644
--- a/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs
@@ -10,7 +10,6 @@ use rustc_hir::def::{DefKind, Res};
 use rustc_hir::LangItem::{OptionNone, ResultErr};
 use rustc_hir::{Arm, Expr, PatKind};
 use rustc_lint::LateContext;
-use rustc_middle::ty::DefIdTree;
 use rustc_span::sym;
 
 use super::MANUAL_UNWRAP_OR;
@@ -33,14 +32,8 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, scrutinee:
             let reindented_or_body =
                 reindent_multiline(or_body_snippet.into(), true, Some(indent));
 
-            let suggestion = if scrutinee.span.from_expansion() {
-                    // we don't want parentheses around macro, e.g. `(some_macro!()).unwrap_or(0)`
-                    sugg::Sugg::hir_with_macro_callsite(cx, scrutinee, "..")
-                }
-                else {
-                    sugg::Sugg::hir(cx, scrutinee, "..").maybe_par()
-                };
-
+            let mut app = Applicability::MachineApplicable;
+            let suggestion = sugg::Sugg::hir_with_context(cx, scrutinee, expr.span.ctxt(), "..", &mut app).maybe_par();
             span_lint_and_sugg(
                 cx,
                 MANUAL_UNWRAP_OR, expr.span,
@@ -49,7 +42,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, scrutinee:
                 format!(
                     "{suggestion}.unwrap_or({reindented_or_body})",
                 ),
-                Applicability::MachineApplicable,
+                app,
             );
         }
     }
diff --git a/src/tools/clippy/clippy_lints/src/matches/match_bool.rs b/src/tools/clippy/clippy_lints/src/matches/match_bool.rs
index 1c216e135..df1e585f1 100644
--- a/src/tools/clippy/clippy_lints/src/matches/match_bool.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/match_bool.rs
@@ -10,9 +10,9 @@ use rustc_middle::ty;
 
 use super::MATCH_BOOL;
 
-pub(crate) fn check(cx: &LateContext<'_>, ex: &Expr<'_>, arms: &[Arm<'_>], expr: &Expr<'_>) {
+pub(crate) fn check(cx: &LateContext<'_>, scrutinee: &Expr<'_>, arms: &[Arm<'_>], expr: &Expr<'_>) {
     // Type of expression is `bool`.
-    if *cx.typeck_results().expr_ty(ex).kind() == ty::Bool {
+    if *cx.typeck_results().expr_ty(scrutinee).kind() == ty::Bool {
         span_lint_and_then(
             cx,
             MATCH_BOOL,
@@ -36,24 +36,26 @@ pub(crate) fn check(cx: &LateContext<'_>, ex: &Expr<'_>, arms: &[Arm<'_>], expr:
                     };
 
                     if let Some((true_expr, false_expr)) = exprs {
+                        let mut app = Applicability::HasPlaceholders;
+                        let ctxt = expr.span.ctxt();
                         let sugg = match (is_unit_expr(true_expr), is_unit_expr(false_expr)) {
                             (false, false) => Some(format!(
                                 "if {} {} else {}",
-                                snippet(cx, ex.span, "b"),
-                                expr_block(cx, true_expr, None, "..", Some(expr.span)),
-                                expr_block(cx, false_expr, None, "..", Some(expr.span))
+                                snippet(cx, scrutinee.span, "b"),
+                                expr_block(cx, true_expr, ctxt, "..", Some(expr.span), &mut app),
+                                expr_block(cx, false_expr, ctxt, "..", Some(expr.span), &mut app)
                             )),
                             (false, true) => Some(format!(
                                 "if {} {}",
-                                snippet(cx, ex.span, "b"),
-                                expr_block(cx, true_expr, None, "..", Some(expr.span))
+                                snippet(cx, scrutinee.span, "b"),
+                                expr_block(cx, true_expr, ctxt, "..", Some(expr.span), &mut app)
                             )),
                             (true, false) => {
-                                let test = Sugg::hir(cx, ex, "..");
+                                let test = Sugg::hir(cx, scrutinee, "..");
                                 Some(format!(
                                     "if {} {}",
                                     !test,
-                                    expr_block(cx, false_expr, None, "..", Some(expr.span))
+                                    expr_block(cx, false_expr, ctxt, "..", Some(expr.span), &mut app)
                                 ))
                             },
                             (true, true) => None,
diff --git a/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs b/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs
index 80f964ba1..aba4c85c5 100644
--- a/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs
@@ -1,13 +1,14 @@
 use clippy_utils::diagnostics::{multispan_sugg, span_lint_and_then};
-use clippy_utils::source::snippet;
+use clippy_utils::source::{snippet, walk_span_to_context};
 use clippy_utils::sugg::Sugg;
 use core::iter::once;
+use rustc_errors::Applicability;
 use rustc_hir::{BorrowKind, Expr, ExprKind, Mutability, Pat, PatKind};
 use rustc_lint::LateContext;
 
 use super::MATCH_REF_PATS;
 
-pub(crate) fn check<'a, 'b, I>(cx: &LateContext<'_>, ex: &Expr<'_>, pats: I, expr: &Expr<'_>)
+pub(crate) fn check<'a, 'b, I>(cx: &LateContext<'_>, scrutinee: &Expr<'_>, pats: I, expr: &Expr<'_>)
 where
     'b: 'a,
     I: Clone + Iterator<Item = &'a Pat<'b>>,
@@ -17,13 +18,28 @@ where
     }
 
     let (first_sugg, msg, title);
-    let span = ex.span.source_callsite();
-    if let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner) = ex.kind {
-        first_sugg = once((span, Sugg::hir_with_macro_callsite(cx, inner, "..").to_string()));
+    let ctxt = expr.span.ctxt();
+    let mut app = Applicability::Unspecified;
+    if let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner) = scrutinee.kind {
+        if scrutinee.span.ctxt() != ctxt {
+            return;
+        }
+        first_sugg = once((
+            scrutinee.span,
+            Sugg::hir_with_context(cx, inner, ctxt, "..", &mut app).to_string(),
+        ));
         msg = "try";
         title = "you don't need to add `&` to both the expression and the patterns";
     } else {
-        first_sugg = once((span, Sugg::hir_with_macro_callsite(cx, ex, "..").deref().to_string()));
+        let Some(span) = walk_span_to_context(scrutinee.span, ctxt) else {
+            return;
+        };
+        first_sugg = once((
+            span,
+            Sugg::hir_with_context(cx, scrutinee, ctxt, "..", &mut app)
+                .deref()
+                .to_string(),
+        ));
         msg = "instead of prefixing all patterns with `&`, you can dereference the expression";
         title = "you don't need to add `&` to all patterns";
     }
diff --git a/src/tools/clippy/clippy_lints/src/matches/match_single_binding.rs b/src/tools/clippy/clippy_lints/src/matches/match_single_binding.rs
index 065a5c726..89da7a55c 100644
--- a/src/tools/clippy/clippy_lints/src/matches/match_single_binding.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/match_single_binding.rs
@@ -1,10 +1,9 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::macros::HirNode;
-use clippy_utils::source::{indent_of, snippet, snippet_block, snippet_with_applicability};
-use clippy_utils::sugg::Sugg;
+use clippy_utils::source::{indent_of, snippet, snippet_block_with_context, snippet_with_applicability};
 use clippy_utils::{get_parent_expr, is_refutable, peel_blocks};
 use rustc_errors::Applicability;
-use rustc_hir::{Arm, Expr, ExprKind, Node, PatKind};
+use rustc_hir::{Arm, Expr, ExprKind, Node, PatKind, StmtKind};
 use rustc_lint::LateContext;
 use rustc_span::Span;
 
@@ -24,21 +23,30 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
     let matched_vars = ex.span;
     let bind_names = arms[0].pat.span;
     let match_body = peel_blocks(arms[0].body);
-    let mut snippet_body = if match_body.span.from_expansion() {
-        Sugg::hir_with_macro_callsite(cx, match_body, "..").to_string()
-    } else {
-        snippet_block(cx, match_body.span, "..", Some(expr.span)).to_string()
-    };
+    let mut app = Applicability::MaybeIncorrect;
+    let mut snippet_body = snippet_block_with_context(
+        cx,
+        match_body.span,
+        arms[0].span.ctxt(),
+        "..",
+        Some(expr.span),
+        &mut app,
+    )
+    .0
+    .to_string();
 
     // Do we need to add ';' to suggestion ?
-    if let ExprKind::Block(block, _) = match_body.kind {
-        // macro + expr_ty(body) == ()
-        if block.span.from_expansion() && cx.typeck_results().expr_ty(match_body).is_unit() {
-            snippet_body.push(';');
+    if let Node::Stmt(stmt) = cx.tcx.hir().get_parent(expr.hir_id)
+        && let StmtKind::Expr(_) = stmt.kind
+        && match match_body.kind {
+            // We don't need to add a ; to blocks, unless that block is from a macro expansion
+            ExprKind::Block(block, _) => block.span.from_expansion(),
+            _ => true,
         }
+    {
+        snippet_body.push(';');
     }
 
-    let mut applicability = Applicability::MaybeIncorrect;
     match arms[0].pat.kind {
         PatKind::Binding(..) | PatKind::Tuple(_, _) | PatKind::Struct(..) => {
             let (target_span, sugg) = match opt_parent_assign_span(cx, ex) {
@@ -48,7 +56,7 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
                         (ex, expr),
                         (bind_names, matched_vars),
                         &snippet_body,
-                        &mut applicability,
+                        &mut app,
                         Some(span),
                         true,
                     );
@@ -60,7 +68,7 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
                         "this assignment could be simplified",
                         "consider removing the `match` expression",
                         sugg,
-                        applicability,
+                        app,
                     );
 
                     return;
@@ -69,10 +77,10 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
                     span,
                     format!(
                         "let {} = {};\n{}let {} = {snippet_body};",
-                        snippet_with_applicability(cx, bind_names, "..", &mut applicability),
-                        snippet_with_applicability(cx, matched_vars, "..", &mut applicability),
+                        snippet_with_applicability(cx, bind_names, "..", &mut app),
+                        snippet_with_applicability(cx, matched_vars, "..", &mut app),
                         " ".repeat(indent_of(cx, expr.span).unwrap_or(0)),
-                        snippet_with_applicability(cx, pat_span, "..", &mut applicability)
+                        snippet_with_applicability(cx, pat_span, "..", &mut app)
                     ),
                 ),
                 None => {
@@ -81,7 +89,7 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
                         (ex, expr),
                         (bind_names, matched_vars),
                         &snippet_body,
-                        &mut applicability,
+                        &mut app,
                         None,
                         true,
                     );
@@ -96,7 +104,7 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
                 "this match could be written as a `let` statement",
                 "consider using a `let` statement",
                 sugg,
-                applicability,
+                app,
             );
         },
         PatKind::Wild => {
@@ -106,7 +114,7 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
                     (ex, expr),
                     (bind_names, matched_vars),
                     &snippet_body,
-                    &mut applicability,
+                    &mut app,
                     None,
                     false,
                 );
@@ -118,7 +126,7 @@ pub(crate) fn check<'a>(cx: &LateContext<'a>, ex: &Expr<'a>, arms: &[Arm<'_>], e
                     "this match could be replaced by its scrutinee and body",
                     "consider using the scrutinee and body instead",
                     sugg,
-                    applicability,
+                    app,
                 );
             } else {
                 span_lint_and_sugg(
diff --git a/src/tools/clippy/clippy_lints/src/matches/mod.rs b/src/tools/clippy/clippy_lints/src/matches/mod.rs
index 7b15a307f..97ecca450 100644
--- a/src/tools/clippy/clippy_lints/src/matches/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/mod.rs
@@ -925,7 +925,7 @@ declare_clippy_lint! {
     #[clippy::version = "1.66.0"]
     pub MANUAL_FILTER,
     complexity,
-    "reimplentation of `filter`"
+    "reimplementation of `filter`"
 }
 
 #[derive(Default)]
diff --git a/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs b/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs
index 81bebff34..7b609ff3d 100644
--- a/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs
@@ -1,6 +1,6 @@
 use super::REDUNDANT_PATTERN_MATCHING;
 use clippy_utils::diagnostics::span_lint_and_then;
-use clippy_utils::source::snippet;
+use clippy_utils::source::{snippet, walk_span_to_context};
 use clippy_utils::sugg::Sugg;
 use clippy_utils::ty::{is_type_diagnostic_item, needs_ordered_drop};
 use clippy_utils::visitors::any_temporaries_need_ordered_drop;
@@ -12,7 +12,7 @@ use rustc_hir::def::{DefKind, Res};
 use rustc_hir::LangItem::{self, OptionNone, OptionSome, PollPending, PollReady, ResultErr, ResultOk};
 use rustc_hir::{Arm, Expr, ExprKind, Node, Pat, PatKind, QPath, UnOp};
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, subst::GenericArgKind, DefIdTree, Ty};
+use rustc_middle::ty::{self, subst::GenericArgKind, Ty};
 use rustc_span::{sym, Symbol};
 
 pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
@@ -150,22 +150,25 @@ fn find_sugg_for_if_let<'tcx>(
             // if/while let ... = ... { ... }
             // ^^^^^^^^^^^^^^^^^^^^^^^^^^^
             let expr_span = expr.span;
+            let ctxt = expr.span.ctxt();
 
             // if/while let ... = ... { ... }
-            //                 ^^^
-            let op_span = result_expr.span.source_callsite();
+            //                    ^^^
+            let Some(res_span) = walk_span_to_context(result_expr.span.source_callsite(), ctxt) else {
+                return;
+            };
 
             // if/while let ... = ... { ... }
-            // ^^^^^^^^^^^^^^^^^^^
-            let span = expr_span.until(op_span.shrink_to_hi());
+            // ^^^^^^^^^^^^^^^^^^^^^^
+            let span = expr_span.until(res_span.shrink_to_hi());
 
-            let app = if needs_drop {
+            let mut app = if needs_drop {
                 Applicability::MaybeIncorrect
             } else {
                 Applicability::MachineApplicable
             };
 
-            let sugg = Sugg::hir_with_macro_callsite(cx, result_expr, "_")
+            let sugg = Sugg::hir_with_context(cx, result_expr, ctxt, "_", &mut app)
                 .maybe_par()
                 .to_string();
 
diff --git a/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs b/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs
index b33a24781..04225beeb 100644
--- a/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs
@@ -321,7 +321,6 @@ impl<'a, 'tcx> Visitor<'tcx> for SigDropHelper<'a, 'tcx> {
                     self.has_significant_drop = true;
                 }
             }
-            ExprKind::Box(..) |
             ExprKind::Array(..) |
             ExprKind::Call(..) |
             ExprKind::Unary(..) |
diff --git a/src/tools/clippy/clippy_lints/src/matches/single_match.rs b/src/tools/clippy/clippy_lints/src/matches/single_match.rs
index 19b49c44d..ad47c1389 100644
--- a/src/tools/clippy/clippy_lints/src/matches/single_match.rs
+++ b/src/tools/clippy/clippy_lints/src/matches/single_match.rs
@@ -67,8 +67,10 @@ fn report_single_pattern(
     els: Option<&Expr<'_>>,
 ) {
     let lint = if els.is_some() { SINGLE_MATCH_ELSE } else { SINGLE_MATCH };
+    let ctxt = expr.span.ctxt();
+    let mut app = Applicability::HasPlaceholders;
     let els_str = els.map_or(String::new(), |els| {
-        format!(" else {}", expr_block(cx, els, None, "..", Some(expr.span)))
+        format!(" else {}", expr_block(cx, els, ctxt, "..", Some(expr.span), &mut app))
     });
 
     let (pat, pat_ref_count) = peel_hir_pat_refs(arms[0].pat);
@@ -103,7 +105,7 @@ fn report_single_pattern(
                 // PartialEq for different reference counts may not exist.
                 "&".repeat(ref_count_diff),
                 snippet(cx, arms[0].pat.span, ".."),
-                expr_block(cx, arms[0].body, None, "..", Some(expr.span)),
+                expr_block(cx, arms[0].body, ctxt, "..", Some(expr.span), &mut app),
             );
             (msg, sugg)
         } else {
@@ -112,21 +114,13 @@ fn report_single_pattern(
                 "if let {} = {} {}{els_str}",
                 snippet(cx, arms[0].pat.span, ".."),
                 snippet(cx, ex.span, ".."),
-                expr_block(cx, arms[0].body, None, "..", Some(expr.span)),
+                expr_block(cx, arms[0].body, ctxt, "..", Some(expr.span), &mut app),
             );
             (msg, sugg)
         }
     };
 
-    span_lint_and_sugg(
-        cx,
-        lint,
-        expr.span,
-        msg,
-        "try this",
-        sugg,
-        Applicability::HasPlaceholders,
-    );
+    span_lint_and_sugg(cx, lint, expr.span, msg, "try this", sugg, app);
 }
 
 fn check_opt_like<'a>(
diff --git a/src/tools/clippy/clippy_lints/src/mem_replace.rs b/src/tools/clippy/clippy_lints/src/mem_replace.rs
index 35024ec12..8a921d4af 100644
--- a/src/tools/clippy/clippy_lints/src/mem_replace.rs
+++ b/src/tools/clippy/clippy_lints/src/mem_replace.rs
@@ -1,12 +1,13 @@
 use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_sugg, span_lint_and_then};
 use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::{snippet, snippet_with_applicability};
+use clippy_utils::sugg::Sugg;
 use clippy_utils::ty::is_non_aggregate_primitive_type;
-use clippy_utils::{is_default_equivalent, is_res_lang_ctor, path_res};
+use clippy_utils::{is_default_equivalent, is_res_lang_ctor, path_res, peel_ref_operators};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir::LangItem::OptionNone;
-use rustc_hir::{BorrowKind, Expr, ExprKind, Mutability, QPath};
+use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::lint::in_external_macro;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
@@ -101,40 +102,26 @@ declare_clippy_lint! {
 impl_lint_pass!(MemReplace =>
     [MEM_REPLACE_OPTION_WITH_NONE, MEM_REPLACE_WITH_UNINIT, MEM_REPLACE_WITH_DEFAULT]);
 
-fn check_replace_option_with_none(cx: &LateContext<'_>, src: &Expr<'_>, dest: &Expr<'_>, expr_span: Span) {
-    // Check that second argument is `Option::None`
-    if is_res_lang_ctor(cx, path_res(cx, src), OptionNone) {
-        // Since this is a late pass (already type-checked),
-        // and we already know that the second argument is an
-        // `Option`, we do not need to check the first
-        // argument's type. All that's left is to get
-        // replacee's path.
-        let replaced_path = match dest.kind {
-            ExprKind::AddrOf(BorrowKind::Ref, Mutability::Mut, replaced) => {
-                if let ExprKind::Path(QPath::Resolved(None, replaced_path)) = replaced.kind {
-                    replaced_path
-                } else {
-                    return;
-                }
-            },
-            ExprKind::Path(QPath::Resolved(None, replaced_path)) => replaced_path,
-            _ => return,
-        };
-
-        let mut applicability = Applicability::MachineApplicable;
-        span_lint_and_sugg(
-            cx,
-            MEM_REPLACE_OPTION_WITH_NONE,
-            expr_span,
-            "replacing an `Option` with `None`",
-            "consider `Option::take()` instead",
-            format!(
-                "{}.take()",
-                snippet_with_applicability(cx, replaced_path.span, "", &mut applicability)
-            ),
-            applicability,
-        );
-    }
+fn check_replace_option_with_none(cx: &LateContext<'_>, dest: &Expr<'_>, expr_span: Span) {
+    // Since this is a late pass (already type-checked),
+    // and we already know that the second argument is an
+    // `Option`, we do not need to check the first
+    // argument's type. All that's left is to get
+    // the replacee's expr after peeling off the `&mut`
+    let sugg_expr = peel_ref_operators(cx, dest);
+    let mut applicability = Applicability::MachineApplicable;
+    span_lint_and_sugg(
+        cx,
+        MEM_REPLACE_OPTION_WITH_NONE,
+        expr_span,
+        "replacing an `Option` with `None`",
+        "consider `Option::take()` instead",
+        format!(
+            "{}.take()",
+            Sugg::hir_with_context(cx, sugg_expr, expr_span.ctxt(), "", &mut applicability).maybe_par()
+        ),
+        applicability,
+    );
 }
 
 fn check_replace_with_uninit(cx: &LateContext<'_>, src: &Expr<'_>, dest: &Expr<'_>, expr_span: Span) {
@@ -200,10 +187,6 @@ fn check_replace_with_default(cx: &LateContext<'_>, src: &Expr<'_>, dest: &Expr<
     if is_non_aggregate_primitive_type(expr_type) {
         return;
     }
-    // disable lint for Option since it is covered in another lint
-    if is_res_lang_ctor(cx, path_res(cx, src), OptionNone) {
-        return;
-    }
     if is_default_equivalent(cx, src) && !in_external_macro(cx.tcx.sess, expr_span) {
         span_lint_and_then(
             cx,
@@ -246,11 +229,13 @@ impl<'tcx> LateLintPass<'tcx> for MemReplace {
             if let Some(def_id) = cx.qpath_res(func_qpath, func.hir_id).opt_def_id();
             if cx.tcx.is_diagnostic_item(sym::mem_replace, def_id);
             then {
-                check_replace_option_with_none(cx, src, dest, expr.span);
-                check_replace_with_uninit(cx, src, dest, expr.span);
-                if self.msrv.meets(msrvs::MEM_TAKE) {
+                // Check that second argument is `Option::None`
+                if is_res_lang_ctor(cx, path_res(cx, src), OptionNone) {
+                    check_replace_option_with_none(cx, dest, expr.span);
+                } else if self.msrv.meets(msrvs::MEM_TAKE) {
                     check_replace_with_default(cx, src, dest, expr.span);
                 }
+                check_replace_with_uninit(cx, src, dest, expr.span);
             }
         }
     }
diff --git a/src/tools/clippy/clippy_lints/src/methods/bind_instead_of_map.rs b/src/tools/clippy/clippy_lints/src/methods/bind_instead_of_map.rs
index 4720a6e68..008533488 100644
--- a/src/tools/clippy/clippy_lints/src/methods/bind_instead_of_map.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/bind_instead_of_map.rs
@@ -1,6 +1,6 @@
 use super::{contains_return, BIND_INSTEAD_OF_MAP};
 use clippy_utils::diagnostics::{multispan_sugg_with_applicability, span_lint_and_sugg, span_lint_and_then};
-use clippy_utils::source::{snippet, snippet_with_macro_callsite};
+use clippy_utils::source::{snippet, snippet_with_context};
 use clippy_utils::{peel_blocks, visitors::find_all_ret_expressions};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
@@ -8,7 +8,6 @@ use rustc_hir as hir;
 use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res};
 use rustc_hir::{LangItem, QPath};
 use rustc_lint::LateContext;
-use rustc_middle::ty::DefIdTree;
 use rustc_span::Span;
 
 pub(crate) struct OptionAndThenSome;
@@ -77,11 +76,8 @@ pub(crate) trait BindInsteadOfMap {
             if !contains_return(inner_expr);
             if let Some(msg) = Self::lint_msg(cx);
             then {
-                let some_inner_snip = if inner_expr.span.from_expansion() {
-                    snippet_with_macro_callsite(cx, inner_expr.span, "_")
-                } else {
-                    snippet(cx, inner_expr.span, "_")
-                };
+                let mut app = Applicability::MachineApplicable;
+                let some_inner_snip = snippet_with_context(cx, inner_expr.span, closure_expr.span.ctxt(), "_", &mut app).0;
 
                 let closure_args_snip = snippet(cx, closure_args_span, "..");
                 let option_snip = snippet(cx, recv.span, "..");
@@ -93,7 +89,7 @@ pub(crate) trait BindInsteadOfMap {
                     &msg,
                     "try this",
                     note,
-                    Applicability::MachineApplicable,
+                    app,
                 );
                 true
             } else {
diff --git a/src/tools/clippy/clippy_lints/src/methods/chars_cmp.rs b/src/tools/clippy/clippy_lints/src/methods/chars_cmp.rs
index 56b7fbb9d..079df2226 100644
--- a/src/tools/clippy/clippy_lints/src/methods/chars_cmp.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/chars_cmp.rs
@@ -6,7 +6,7 @@ use rustc_errors::Applicability;
 use rustc_hir as hir;
 use rustc_lint::LateContext;
 use rustc_lint::Lint;
-use rustc_middle::ty::{self, DefIdTree};
+use rustc_middle::ty;
 
 /// Wrapper fn for `CHARS_NEXT_CMP` and `CHARS_LAST_CMP` lints.
 pub(super) fn check(
diff --git a/src/tools/clippy/clippy_lints/src/methods/clear_with_drain.rs b/src/tools/clippy/clippy_lints/src/methods/clear_with_drain.rs
new file mode 100644
index 000000000..67ad58d5a
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/methods/clear_with_drain.rs
@@ -0,0 +1,53 @@
+use clippy_utils::diagnostics::span_lint_and_sugg;
+use clippy_utils::is_range_full;
+use clippy_utils::ty::{is_type_diagnostic_item, is_type_lang_item};
+use rustc_errors::Applicability;
+use rustc_hir as hir;
+use rustc_hir::{Expr, ExprKind, LangItem, QPath};
+use rustc_lint::LateContext;
+use rustc_span::symbol::sym;
+use rustc_span::Span;
+
+use super::CLEAR_WITH_DRAIN;
+
+// Add `String` here when it is added to diagnostic items
+const ACCEPTABLE_TYPES_WITH_ARG: [rustc_span::Symbol; 2] = [sym::Vec, sym::VecDeque];
+
+const ACCEPTABLE_TYPES_WITHOUT_ARG: [rustc_span::Symbol; 3] = [sym::BinaryHeap, sym::HashMap, sym::HashSet];
+
+pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, span: Span, arg: Option<&Expr<'_>>) {
+    if let Some(arg) = arg {
+        if match_acceptable_type(cx, recv, &ACCEPTABLE_TYPES_WITH_ARG)
+            && let ExprKind::Path(QPath::Resolved(None, container_path)) = recv.kind
+            && is_range_full(cx, arg, Some(container_path))
+        {
+            suggest(cx, expr, recv, span);
+        }
+    } else if match_acceptable_type(cx, recv, &ACCEPTABLE_TYPES_WITHOUT_ARG) {
+        suggest(cx, expr, recv, span);
+    }
+}
+
+fn match_acceptable_type(cx: &LateContext<'_>, expr: &hir::Expr<'_>, types: &[rustc_span::Symbol]) -> bool {
+    let expr_ty = cx.typeck_results().expr_ty(expr).peel_refs();
+    types.iter().any(|&ty| is_type_diagnostic_item(cx, expr_ty, ty))
+    // String type is a lang item but not a diagnostic item for now so we need a separate check
+        || is_type_lang_item(cx, expr_ty, LangItem::String)
+}
+
+fn suggest(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, span: Span) {
+    if let Some(adt) = cx.typeck_results().expr_ty(recv).ty_adt_def()
+    // Use `opt_item_name` while `String` is not a diagnostic item
+        && let Some(ty_name) = cx.tcx.opt_item_name(adt.did())
+    {
+        span_lint_and_sugg(
+            cx,
+            CLEAR_WITH_DRAIN,
+            span.with_hi(expr.span.hi()),
+            &format!("`drain` used to clear a `{ty_name}`"),
+            "try",
+            "clear()".to_string(),
+            Applicability::MachineApplicable,
+        );
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/methods/clone_on_ref_ptr.rs b/src/tools/clippy/clippy_lints/src/methods/clone_on_ref_ptr.rs
index 355f53532..5e8ad0861 100644
--- a/src/tools/clippy/clippy_lints/src/methods/clone_on_ref_ptr.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/clone_on_ref_ptr.rs
@@ -1,6 +1,6 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::paths;
-use clippy_utils::source::snippet_with_macro_callsite;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::ty::{is_type_diagnostic_item, match_type};
 use rustc_errors::Applicability;
 use rustc_hir as hir;
@@ -33,7 +33,9 @@ pub(super) fn check(
             return;
         };
 
-        let snippet = snippet_with_macro_callsite(cx, receiver.span, "..");
+        // Sometimes unnecessary ::<_> after Rc/Arc/Weak
+        let mut app = Applicability::Unspecified;
+        let snippet = snippet_with_context(cx, receiver.span, expr.span.ctxt(), "..", &mut app).0;
 
         span_lint_and_sugg(
             cx,
@@ -42,7 +44,7 @@ pub(super) fn check(
             "using `.clone()` on a ref-counted pointer",
             "try this",
             format!("{caller_type}::<{}>::clone(&{snippet})", subst.type_at(0)),
-            Applicability::Unspecified, // Sometimes unnecessary ::<_> after Rc/Arc/Weak
+            app,
         );
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs b/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs
index a22285058..92d21bb89 100644
--- a/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs
@@ -1,5 +1,5 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::macros::{root_macro_call_first_node, FormatArgsExpn};
+use clippy_utils::macros::{find_format_args, format_args_inputs_span, root_macro_call_first_node};
 use clippy_utils::source::snippet_with_applicability;
 use clippy_utils::ty::{is_type_diagnostic_item, is_type_lang_item};
 use rustc_errors::Applicability;
@@ -136,18 +136,19 @@ pub(super) fn check<'tcx>(
         if !cx.tcx.is_diagnostic_item(sym::format_macro, macro_call.def_id) {
             return;
         }
-        let Some(format_args) = FormatArgsExpn::find_nested(cx, arg_root, macro_call.expn) else { return };
-        let span = format_args.inputs_span();
-        let sugg = snippet_with_applicability(cx, span, "..", &mut applicability);
-        span_lint_and_sugg(
-            cx,
-            EXPECT_FUN_CALL,
-            span_replace_word,
-            &format!("use of `{name}` followed by a function call"),
-            "try this",
-            format!("unwrap_or_else({closure_args} panic!({sugg}))"),
-            applicability,
-        );
+        find_format_args(cx, arg_root, macro_call.expn, |format_args| {
+            let span = format_args_inputs_span(format_args);
+            let sugg = snippet_with_applicability(cx, span, "..", &mut applicability);
+            span_lint_and_sugg(
+                cx,
+                EXPECT_FUN_CALL,
+                span_replace_word,
+                &format!("use of `{name}` followed by a function call"),
+                "try this",
+                format!("unwrap_or_else({closure_args} panic!({sugg}))"),
+                applicability,
+            );
+        });
         return;
     }
 
diff --git a/src/tools/clippy/clippy_lints/src/methods/iter_with_drain.rs b/src/tools/clippy/clippy_lints/src/methods/iter_with_drain.rs
index 3da230e12..f6772c5c6 100644
--- a/src/tools/clippy/clippy_lints/src/methods/iter_with_drain.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/iter_with_drain.rs
@@ -1,7 +1,5 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::higher::Range;
-use clippy_utils::is_integer_const;
-use rustc_ast::ast::RangeLimits;
+use clippy_utils::is_range_full;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind, QPath};
 use rustc_lint::LateContext;
@@ -15,8 +13,8 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, span
         && let Some(adt) = cx.typeck_results().expr_ty(recv).ty_adt_def()
         && let Some(ty_name) = cx.tcx.get_diagnostic_name(adt.did())
         && matches!(ty_name, sym::Vec | sym::VecDeque)
-        && let Some(range) = Range::hir(arg)
-        && is_full_range(cx, recv, range)
+        && let ExprKind::Path(QPath::Resolved(None, container_path)) = recv.kind
+        && is_range_full(cx, arg, Some(container_path))
     {
         span_lint_and_sugg(
             cx,
@@ -29,19 +27,3 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, span
         );
     };
 }
-
-fn is_full_range(cx: &LateContext<'_>, container: &Expr<'_>, range: Range<'_>) -> bool {
-    range.start.map_or(true, |e| is_integer_const(cx, e, 0))
-        && range.end.map_or(true, |e| {
-            if range.limits == RangeLimits::HalfOpen
-                && let ExprKind::Path(QPath::Resolved(None, container_path)) = container.kind
-                && let ExprKind::MethodCall(name, self_arg, [], _) = e.kind
-                && name.ident.name == sym::len
-                && let ExprKind::Path(QPath::Resolved(None, path)) = self_arg.kind
-            {
-                container_path.res == path.res
-            } else {
-                false
-            }
-        })
-}
diff --git a/src/tools/clippy/clippy_lints/src/methods/mod.rs b/src/tools/clippy/clippy_lints/src/methods/mod.rs
index 702df4b28..64bf55ba2 100644
--- a/src/tools/clippy/clippy_lints/src/methods/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/mod.rs
@@ -9,6 +9,7 @@ mod chars_last_cmp;
 mod chars_last_cmp_with_unwrap;
 mod chars_next_cmp;
 mod chars_next_cmp_with_unwrap;
+mod clear_with_drain;
 mod clone_on_copy;
 mod clone_on_ref_ptr;
 mod cloned_instead_of_copied;
@@ -110,7 +111,7 @@ use clippy_utils::ty::{contains_ty_adt_constructor_opaque, implements_trait, is_
 use clippy_utils::{contains_return, is_bool, is_trait_method, iter_input_pats, return_ty};
 use if_chain::if_chain;
 use rustc_hir as hir;
-use rustc_hir::{Expr, ExprKind, TraitItem, TraitItemKind};
+use rustc_hir::{Expr, ExprKind, Node, Stmt, StmtKind, TraitItem, TraitItemKind};
 use rustc_hir_analysis::hir_ty_to_ty;
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::lint::in_external_macro;
@@ -340,8 +341,9 @@ declare_clippy_lint! {
 
 declare_clippy_lint! {
     /// ### What it does
-    /// Checks for methods with certain name prefixes and which
-    /// doesn't match how self is taken. The actual rules are:
+    /// Checks for methods with certain name prefixes or suffixes, and which
+    /// do not adhere to standard conventions regarding how `self` is taken.
+    /// The actual rules are:
     ///
     /// |Prefix |Postfix     |`self` taken                   | `self` type  |
     /// |-------|------------|-------------------------------|--------------|
@@ -3189,6 +3191,31 @@ declare_clippy_lint! {
     "single command line argument that looks like it should be multiple arguments"
 }
 
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks for usage of `.drain(..)` for the sole purpose of clearing a container.
+    ///
+    /// ### Why is this bad?
+    /// This creates an unnecessary iterator that is dropped immediately.
+    ///
+    /// Calling `.clear()` also makes the intent clearer.
+    ///
+    /// ### Example
+    /// ```rust
+    /// let mut v = vec![1, 2, 3];
+    /// v.drain(..);
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// let mut v = vec![1, 2, 3];
+    /// v.clear();
+    /// ```
+    #[clippy::version = "1.69.0"]
+    pub CLEAR_WITH_DRAIN,
+    nursery,
+    "calling `drain` in order to `clear` a container"
+}
+
 pub struct Methods {
     avoid_breaking_exported_api: bool,
     msrv: Msrv,
@@ -3317,6 +3344,7 @@ impl_lint_pass!(Methods => [
     SEEK_TO_START_INSTEAD_OF_REWIND,
     NEEDLESS_COLLECT,
     SUSPICIOUS_COMMAND_ARG_SPACE,
+    CLEAR_WITH_DRAIN,
 ]);
 
 /// Extracts a method call name, args, and `Span` of the method name.
@@ -3561,8 +3589,15 @@ impl Methods {
                     Some(("bytes", recv2, [], _, _)) => bytes_count_to_len::check(cx, expr, recv, recv2),
                     _ => {},
                 },
-                ("drain", [arg]) => {
-                    iter_with_drain::check(cx, expr, recv, span, arg);
+                ("drain", ..) => {
+                    if let Node::Stmt(Stmt { hir_id: _, kind, .. }) = cx.tcx.hir().get_parent(expr.hir_id)
+                        && matches!(kind, StmtKind::Semi(_))
+                        && args.len() <= 1
+                    {
+                        clear_with_drain::check(cx, expr, recv, span, args.first());
+                    } else if let [arg] = args {
+                        iter_with_drain::check(cx, expr, recv, span, arg);
+                    }
                 },
                 ("ends_with", [arg]) => {
                     if let ExprKind::MethodCall(.., span) = expr.kind {
diff --git a/src/tools/clippy/clippy_lints/src/methods/option_map_or_none.rs b/src/tools/clippy/clippy_lints/src/methods/option_map_or_none.rs
index 3a23ecc50..41ceef19e 100644
--- a/src/tools/clippy/clippy_lints/src/methods/option_map_or_none.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/option_map_or_none.rs
@@ -6,7 +6,6 @@ use rustc_errors::Applicability;
 use rustc_hir as hir;
 use rustc_hir::LangItem::{OptionNone, OptionSome};
 use rustc_lint::LateContext;
-use rustc_middle::ty::DefIdTree;
 use rustc_span::symbol::sym;
 
 use super::OPTION_MAP_OR_NONE;
diff --git a/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs b/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs
index 4460f38fc..7ce28ea93 100644
--- a/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs
@@ -1,6 +1,6 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::eager_or_lazy::switch_to_lazy_eval;
-use clippy_utils::source::{snippet, snippet_with_macro_callsite};
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::ty::{implements_trait, is_type_diagnostic_item};
 use clippy_utils::{contains_return, is_trait_item, last_path_segment};
 use if_chain::if_chain;
@@ -9,7 +9,6 @@ use rustc_hir as hir;
 use rustc_lint::LateContext;
 use rustc_span::source_map::Span;
 use rustc_span::symbol::{kw, sym, Symbol};
-use std::borrow::Cow;
 
 use super::OR_FUN_CALL;
 
@@ -111,37 +110,24 @@ pub(super) fn check<'tcx>(
             if poss.contains(&name);
 
             then {
+                let ctxt = span.ctxt();
+                let mut app = Applicability::HasPlaceholders;
                 let sugg = {
                     let (snippet_span, use_lambda) = match (fn_has_arguments, fun_span) {
                         (false, Some(fun_span)) => (fun_span, false),
                         _ => (arg.span, true),
                     };
 
-                    let format_span = |span: Span| {
-                        let not_macro_argument_snippet = snippet_with_macro_callsite(cx, span, "..");
-                        let snip = if not_macro_argument_snippet == "vec![]" {
-                            let macro_expanded_snipped = snippet(cx, snippet_span, "..");
-                            match macro_expanded_snipped.strip_prefix("$crate::vec::") {
-                                Some(stripped) => Cow::Owned(stripped.to_owned()),
-                                None => macro_expanded_snipped,
-                            }
-                        } else {
-                            not_macro_argument_snippet
-                        };
-
-                        snip.to_string()
-                    };
-
-                    let snip = format_span(snippet_span);
+                    let snip = snippet_with_context(cx, snippet_span, ctxt, "..", &mut app).0;
                     let snip = if use_lambda {
                         let l_arg = if fn_has_arguments { "_" } else { "" };
                         format!("|{l_arg}| {snip}")
                     } else {
-                        snip
+                        snip.into_owned()
                     };
 
                     if let Some(f) = second_arg {
-                        let f = format_span(f.span);
+                        let f = snippet_with_context(cx, f.span, ctxt, "..", &mut app).0;
                         format!("{snip}, {f}")
                     } else {
                         snip
@@ -155,7 +141,7 @@ pub(super) fn check<'tcx>(
                     &format!("use of `{name}` followed by a function call"),
                     "try this",
                     format!("{name}_{suffix}({sugg})"),
-                    Applicability::HasPlaceholders,
+                    app,
                 );
             }
         }
diff --git a/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs b/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs
index 5201da52b..67618f703 100644
--- a/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs
@@ -33,10 +33,6 @@ struct SortByKeyDetection {
 /// contains a and the other replaces it with b)
 fn mirrored_exprs(a_expr: &Expr<'_>, a_ident: &Ident, b_expr: &Expr<'_>, b_ident: &Ident) -> bool {
     match (&a_expr.kind, &b_expr.kind) {
-        // Two boxes with mirrored contents
-        (ExprKind::Box(left_expr), ExprKind::Box(right_expr)) => {
-            mirrored_exprs(left_expr, a_ident, right_expr, b_ident)
-        },
         // Two arrays with mirrored contents
         (ExprKind::Array(left_exprs), ExprKind::Array(right_exprs)) => {
             iter::zip(*left_exprs, *right_exprs).all(|(left, right)| mirrored_exprs(left, a_ident, right, b_ident))
diff --git a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs
index df26b36b7..4c4c003ca 100644
--- a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs
@@ -369,10 +369,10 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty<
             Node::Item(item) => {
                 if let ItemKind::Fn(_, _, body_id) = &item.kind
                 && let output_ty = return_ty(cx, item.owner_id)
-                && Inherited::build(cx.tcx, item.owner_id.def_id).enter(|inherited| {
-                    let fn_ctxt = FnCtxt::new(inherited, cx.param_env, item.owner_id.def_id);
-                    fn_ctxt.can_coerce(ty, output_ty)
-                }) {
+                && let inherited = Inherited::new(cx.tcx, item.owner_id.def_id)
+                && let fn_ctxt = FnCtxt::new(&inherited, cx.param_env, item.owner_id.def_id)
+                && fn_ctxt.can_coerce(ty, output_ty)
+                {
                     if has_lifetime(output_ty) && has_lifetime(ty) {
                         return false;
                     }
diff --git a/src/tools/clippy/clippy_lints/src/misc.rs b/src/tools/clippy/clippy_lints/src/misc.rs
index 0705029a6..3752b9a94 100644
--- a/src/tools/clippy/clippy_lints/src/misc.rs
+++ b/src/tools/clippy/clippy_lints/src/misc.rs
@@ -1,5 +1,5 @@
 use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg, span_lint_hir_and_then};
-use clippy_utils::source::{snippet, snippet_opt};
+use clippy_utils::source::{snippet, snippet_opt, snippet_with_context};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir::intravisit::FnKind;
@@ -181,20 +181,17 @@ impl<'tcx> LateLintPass<'tcx> for LintPass {
             if let PatKind::Binding(BindingAnnotation(ByRef::Yes, mutabl), .., name, None) = local.pat.kind;
             if let Some(init) = local.init;
             then {
-                // use the macro callsite when the init span (but not the whole local span)
-                // comes from an expansion like `vec![1, 2, 3]` in `let ref _ = vec![1, 2, 3];`
-                let sugg_init = if init.span.from_expansion() && !local.span.from_expansion() {
-                    Sugg::hir_with_macro_callsite(cx, init, "..")
-                } else {
-                    Sugg::hir(cx, init, "..")
-                };
+                let ctxt = local.span.ctxt();
+                let mut app = Applicability::MachineApplicable;
+                let sugg_init = Sugg::hir_with_context(cx, init, ctxt, "..", &mut app);
                 let (mutopt, initref) = if mutabl == Mutability::Mut {
                     ("mut ", sugg_init.mut_addr())
                 } else {
                     ("", sugg_init.addr())
                 };
                 let tyopt = if let Some(ty) = local.ty {
-                    format!(": &{mutopt}{ty}", ty=snippet(cx, ty.span, ".."))
+                    let ty_snip = snippet_with_context(cx, ty.span, ctxt, "_", &mut app).0;
+                    format!(": &{mutopt}{ty_snip}")
                 } else {
                     String::new()
                 };
@@ -212,7 +209,7 @@ impl<'tcx> LateLintPass<'tcx> for LintPass {
                                 "let {name}{tyopt} = {initref};",
                                 name=snippet(cx, name.span, ".."),
                             ),
-                            Applicability::MachineApplicable,
+                            app,
                         );
                     }
                 );
diff --git a/src/tools/clippy/clippy_lints/src/missing_assert_message.rs b/src/tools/clippy/clippy_lints/src/missing_assert_message.rs
new file mode 100644
index 000000000..2214a568d
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/missing_assert_message.rs
@@ -0,0 +1,82 @@
+use clippy_utils::diagnostics::span_lint_and_help;
+use clippy_utils::macros::{find_assert_args, find_assert_eq_args, root_macro_call_first_node, PanicExpn};
+use clippy_utils::{is_in_cfg_test, is_in_test_function};
+use rustc_hir::Expr;
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::sym;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks assertions without a custom panic message.
+    ///
+    /// ### Why is this bad?
+    /// Without a good custom message, it'd be hard to understand what went wrong when the assertion fails.
+    /// A good custom message should be more about why the failure of the assertion is problematic
+    /// and not what is failed because the assertion already conveys that.
+    ///
+    /// ### Known problems
+    /// This lint cannot check the quality of the custom panic messages.
+    /// Hence, you can suppress this lint simply by adding placeholder messages
+    /// like "assertion failed". However, we recommend coming up with good messages
+    /// that provide useful information instead of placeholder messages that
+    /// don't provide any extra information.
+    ///
+    /// ### Example
+    /// ```rust
+    /// # struct Service { ready: bool }
+    /// fn call(service: Service) {
+    ///     assert!(service.ready);
+    /// }
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// # struct Service { ready: bool }
+    /// fn call(service: Service) {
+    ///     assert!(service.ready, "`service.poll_ready()` must be called first to ensure that service is ready to receive requests");
+    /// }
+    /// ```
+    #[clippy::version = "1.69.0"]
+    pub MISSING_ASSERT_MESSAGE,
+    restriction,
+    "checks assertions without a custom panic message"
+}
+
+declare_lint_pass!(MissingAssertMessage => [MISSING_ASSERT_MESSAGE]);
+
+impl<'tcx> LateLintPass<'tcx> for MissingAssertMessage {
+    fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
+        let Some(macro_call) = root_macro_call_first_node(cx, expr) else { return };
+        let single_argument = match cx.tcx.get_diagnostic_name(macro_call.def_id) {
+            Some(sym::assert_macro | sym::debug_assert_macro) => true,
+            Some(
+                sym::assert_eq_macro | sym::assert_ne_macro | sym::debug_assert_eq_macro | sym::debug_assert_ne_macro,
+            ) => false,
+            _ => return,
+        };
+
+        // This lint would be very noisy in tests, so just ignore if we're in test context
+        if is_in_test_function(cx.tcx, expr.hir_id) || is_in_cfg_test(cx.tcx, expr.hir_id) {
+            return;
+        }
+
+        let panic_expn = if single_argument {
+            let Some((_, panic_expn)) = find_assert_args(cx, expr, macro_call.expn) else { return };
+            panic_expn
+        } else {
+            let Some((_, _, panic_expn)) = find_assert_eq_args(cx, expr, macro_call.expn) else { return };
+            panic_expn
+        };
+
+        if let PanicExpn::Empty = panic_expn {
+            span_lint_and_help(
+                cx,
+                MISSING_ASSERT_MESSAGE,
+                macro_call.span,
+                "assert without any message",
+                None,
+                "consider describing why the failing assert is problematic",
+            );
+        }
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs b/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs
index 87bd007a2..f1831a304 100644
--- a/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs
+++ b/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs
@@ -41,6 +41,7 @@ declare_clippy_lint! {
     /// can't be const as it calls a non-const function. Making `a` const and running Clippy again,
     /// will suggest to make `b` const, too.
     ///
+    /// If you are marking a public function with `const`, removing it again will break API compatibility.
     /// ### Example
     /// ```rust
     /// # struct Foo {
diff --git a/src/tools/clippy/clippy_lints/src/missing_doc.rs b/src/tools/clippy/clippy_lints/src/missing_doc.rs
index 9659ca8ce..f2773cad4 100644
--- a/src/tools/clippy/clippy_lints/src/missing_doc.rs
+++ b/src/tools/clippy/clippy_lints/src/missing_doc.rs
@@ -8,12 +8,12 @@
 use clippy_utils::attrs::is_doc_hidden;
 use clippy_utils::diagnostics::span_lint;
 use clippy_utils::is_from_proc_macro;
-use hir::def_id::LocalDefId;
 use if_chain::if_chain;
 use rustc_ast::ast::{self, MetaItem, MetaItemKind};
 use rustc_hir as hir;
+use rustc_hir::def_id::LocalDefId;
 use rustc_lint::{LateContext, LateLintPass, LintContext};
-use rustc_middle::ty::{DefIdTree, Visibility};
+use rustc_middle::ty::Visibility;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::def_id::CRATE_DEF_ID;
 use rustc_span::source_map::Span;
@@ -21,8 +21,7 @@ use rustc_span::sym;
 
 declare_clippy_lint! {
     /// ### What it does
-    /// Warns if there is missing doc for any documentable item
-    /// (public or private).
+    /// Warns if there is missing doc for any private documentable item
     ///
     /// ### Why is this bad?
     /// Doc is good. *rustc* has a `MISSING_DOCS`
@@ -32,7 +31,7 @@ declare_clippy_lint! {
     #[clippy::version = "pre 1.29.0"]
     pub MISSING_DOCS_IN_PRIVATE_ITEMS,
     restriction,
-    "detects missing documentation for public and private members"
+    "detects missing documentation for private members"
 }
 
 pub struct MissingDoc {
@@ -107,11 +106,14 @@ impl MissingDoc {
             if vis == Visibility::Public || vis != Visibility::Restricted(CRATE_DEF_ID.into()) {
                 return;
             }
+        } else if def_id != CRATE_DEF_ID && cx.effective_visibilities.is_exported(def_id) {
+            return;
         }
 
         let has_doc = attrs
             .iter()
             .any(|a| a.doc_str().is_some() || Self::has_include(a.meta()));
+
         if !has_doc {
             span_lint(
                 cx,
diff --git a/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs b/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs
index 63c575fca..5418616de 100644
--- a/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs
+++ b/src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs
@@ -11,6 +11,7 @@ use rustc_ast::Mutability;
 use rustc_hir as hir;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::lint::in_external_macro;
+use rustc_middle::ty;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::Span;
 
@@ -120,33 +121,15 @@ fn collect_unsafe_exprs<'tcx>(
                 unsafe_ops.push(("raw pointer dereference occurs here", expr.span));
             },
 
-            ExprKind::Call(path_expr, _) => match path_expr.kind {
-                ExprKind::Path(QPath::Resolved(
-                    _,
-                    hir::Path {
-                        res: Res::Def(kind, def_id),
-                        ..
-                    },
-                )) if kind.is_fn_like() => {
-                    let sig = cx.tcx.fn_sig(*def_id);
-                    if sig.0.unsafety() == Unsafety::Unsafe {
-                        unsafe_ops.push(("unsafe function call occurs here", expr.span));
-                    }
-                },
-
-                ExprKind::Path(QPath::TypeRelative(..)) => {
-                    if let Some(sig) = cx
-                        .typeck_results()
-                        .type_dependent_def_id(path_expr.hir_id)
-                        .map(|def_id| cx.tcx.fn_sig(def_id))
-                    {
-                        if sig.0.unsafety() == Unsafety::Unsafe {
-                            unsafe_ops.push(("unsafe function call occurs here", expr.span));
-                        }
-                    }
-                },
-
-                _ => {},
+            ExprKind::Call(path_expr, _) => {
+                let sig = match *cx.typeck_results().expr_ty(path_expr).kind() {
+                    ty::FnDef(id, _) => cx.tcx.fn_sig(id).skip_binder(),
+                    ty::FnPtr(sig) => sig,
+                    _ => return Continue(Descend::Yes),
+                };
+                if sig.unsafety() == Unsafety::Unsafe {
+                    unsafe_ops.push(("unsafe function call occurs here", expr.span));
+                }
             },
 
             ExprKind::MethodCall(..) => {
diff --git a/src/tools/clippy/clippy_lints/src/mut_key.rs b/src/tools/clippy/clippy_lints/src/mut_key.rs
index 8aa814b74..309f67521 100644
--- a/src/tools/clippy/clippy_lints/src/mut_key.rs
+++ b/src/tools/clippy/clippy_lints/src/mut_key.rs
@@ -1,10 +1,11 @@
 use clippy_utils::diagnostics::span_lint;
+use clippy_utils::ty::is_interior_mut_ty;
 use clippy_utils::{def_path_def_ids, trait_ref_of_method};
 use rustc_data_structures::fx::FxHashSet;
 use rustc_hir as hir;
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::TypeVisitableExt;
-use rustc_middle::ty::{Adt, Array, Ref, Slice, Tuple, Ty};
+use rustc_middle::query::Key;
+use rustc_middle::ty::{Adt, Ty};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
@@ -153,53 +154,18 @@ impl MutableKeyType {
             let is_keyed_type = [sym::HashMap, sym::BTreeMap, sym::HashSet, sym::BTreeSet]
                 .iter()
                 .any(|diag_item| cx.tcx.is_diagnostic_item(*diag_item, def.did()));
-            if is_keyed_type && self.is_interior_mutable_type(cx, substs.type_at(0)) {
-                span_lint(cx, MUTABLE_KEY_TYPE, span, "mutable key type");
+            if !is_keyed_type {
+                return;
             }
-        }
-    }
 
-    /// Determines if a type contains interior mutability which would affect its implementation of
-    /// [`Hash`] or [`Ord`].
-    fn is_interior_mutable_type<'tcx>(&self, cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
-        match *ty.kind() {
-            Ref(_, inner_ty, mutbl) => mutbl == hir::Mutability::Mut || self.is_interior_mutable_type(cx, inner_ty),
-            Slice(inner_ty) => self.is_interior_mutable_type(cx, inner_ty),
-            Array(inner_ty, size) => {
-                size.try_eval_target_usize(cx.tcx, cx.param_env)
-                    .map_or(true, |u| u != 0)
-                    && self.is_interior_mutable_type(cx, inner_ty)
-            },
-            Tuple(fields) => fields.iter().any(|ty| self.is_interior_mutable_type(cx, ty)),
-            Adt(def, substs) => {
-                // Special case for collections in `std` who's impl of `Hash` or `Ord` delegates to
-                // that of their type parameters.  Note: we don't include `HashSet` and `HashMap`
-                // because they have no impl for `Hash` or `Ord`.
-                let def_id = def.did();
-                let is_std_collection = [
-                    sym::Option,
-                    sym::Result,
-                    sym::LinkedList,
-                    sym::Vec,
-                    sym::VecDeque,
-                    sym::BTreeMap,
-                    sym::BTreeSet,
-                    sym::Rc,
-                    sym::Arc,
-                ]
-                .iter()
-                .any(|diag_item| cx.tcx.is_diagnostic_item(*diag_item, def_id));
-                let is_box = Some(def_id) == cx.tcx.lang_items().owned_box();
-                if is_std_collection || is_box || self.ignore_mut_def_ids.contains(&def_id) {
-                    // The type is mutable if any of its type parameters are
-                    substs.types().any(|ty| self.is_interior_mutable_type(cx, ty))
-                } else {
-                    !ty.has_escaping_bound_vars()
-                        && cx.tcx.layout_of(cx.param_env.and(ty)).is_ok()
-                        && !ty.is_freeze(cx.tcx, cx.param_env)
-                }
-            },
-            _ => false,
+            let subst_ty = substs.type_at(0);
+            // Determines if a type contains interior mutability which would affect its implementation of
+            // [`Hash`] or [`Ord`].
+            if is_interior_mut_ty(cx, subst_ty)
+                && !matches!(subst_ty.ty_adt_id(), Some(adt_id) if self.ignore_mut_def_ids.contains(&adt_id))
+            {
+                span_lint(cx, MUTABLE_KEY_TYPE, span, "mutable key type");
+            }
         }
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/needless_bool.rs b/src/tools/clippy/clippy_lints/src/needless_bool.rs
index a4eec95b3..c87059bf6 100644
--- a/src/tools/clippy/clippy_lints/src/needless_bool.rs
+++ b/src/tools/clippy/clippy_lints/src/needless_bool.rs
@@ -340,18 +340,11 @@ fn suggest_bool_comparison<'a, 'tcx>(
     cx: &LateContext<'tcx>,
     e: &'tcx Expr<'_>,
     expr: &Expr<'_>,
-    mut applicability: Applicability,
+    mut app: Applicability,
     message: &str,
     conv_hint: impl FnOnce(Sugg<'a>) -> Sugg<'a>,
 ) {
-    let hint = if expr.span.from_expansion() {
-        if applicability != Applicability::Unspecified {
-            applicability = Applicability::MaybeIncorrect;
-        }
-        Sugg::hir_with_macro_callsite(cx, expr, "..")
-    } else {
-        Sugg::hir_with_applicability(cx, expr, "..", &mut applicability)
-    };
+    let hint = Sugg::hir_with_context(cx, expr, e.span.ctxt(), "..", &mut app);
     span_lint_and_sugg(
         cx,
         BOOL_COMPARISON,
@@ -359,7 +352,7 @@ fn suggest_bool_comparison<'a, 'tcx>(
         message,
         "try simplifying it as shown",
         conv_hint(hint).to_string(),
-        applicability,
+        app,
     );
 }
 
diff --git a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
index 1ab81aee7..0bb1775aa 100644
--- a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
+++ b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs
@@ -122,11 +122,11 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
 
         let sized_trait = need!(cx.tcx.lang_items().sized_trait());
 
-        let preds = traits::elaborate_predicates(cx.tcx, cx.param_env.caller_bounds().iter())
+        let preds = traits::elaborate(cx.tcx, cx.param_env.caller_bounds().iter())
             .filter(|p| !p.is_global())
-            .filter_map(|obligation| {
+            .filter_map(|pred| {
                 // Note that we do not want to deal with qualified predicates here.
-                match obligation.predicate.kind().no_bound_vars() {
+                match pred.kind().no_bound_vars() {
                     Some(ty::PredicateKind::Clause(ty::Clause::Trait(pred))) if pred.def_id() != sized_trait => {
                         Some(pred)
                     },
diff --git a/src/tools/clippy/clippy_lints/src/needless_question_mark.rs b/src/tools/clippy/clippy_lints/src/needless_question_mark.rs
index 97c8cfbd3..e2a7ba02a 100644
--- a/src/tools/clippy/clippy_lints/src/needless_question_mark.rs
+++ b/src/tools/clippy/clippy_lints/src/needless_question_mark.rs
@@ -6,7 +6,6 @@ use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{AsyncGeneratorKind, Block, Body, Expr, ExprKind, GeneratorKind, LangItem, MatchSource, QPath};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::DefIdTree;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
 declare_clippy_lint! {
diff --git a/src/tools/clippy/clippy_lints/src/neg_multiply.rs b/src/tools/clippy/clippy_lints/src/neg_multiply.rs
index fb9a4abd0..ed3e2c6e7 100644
--- a/src/tools/clippy/clippy_lints/src/neg_multiply.rs
+++ b/src/tools/clippy/clippy_lints/src/neg_multiply.rs
@@ -1,6 +1,6 @@
 use clippy_utils::consts::{self, Constant};
 use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::sugg::has_enclosing_paren;
 use if_chain::if_chain;
 use rustc_ast::util::parser::PREC_PREFIX;
@@ -60,8 +60,8 @@ fn check_mul(cx: &LateContext<'_>, span: Span, lit: &Expr<'_>, exp: &Expr<'_>) {
 
         then {
             let mut applicability = Applicability::MachineApplicable;
-            let snip = snippet_with_applicability(cx, exp.span, "..", &mut applicability);
-            let suggestion = if exp.precedence().order() < PREC_PREFIX && !has_enclosing_paren(&snip) {
+            let (snip, from_macro) = snippet_with_context(cx, exp.span, span.ctxt(), "..", &mut applicability);
+            let suggestion = if !from_macro && exp.precedence().order() < PREC_PREFIX && !has_enclosing_paren(&snip) {
                 format!("-({snip})")
             } else {
                 format!("-{snip}")
diff --git a/src/tools/clippy/clippy_lints/src/no_effect.rs b/src/tools/clippy/clippy_lints/src/no_effect.rs
index 79c1ae486..e3712190e 100644
--- a/src/tools/clippy/clippy_lints/src/no_effect.rs
+++ b/src/tools/clippy/clippy_lints/src/no_effect.rs
@@ -127,8 +127,7 @@ fn has_no_effect(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
         | ExprKind::Type(inner, _)
         | ExprKind::Unary(_, inner)
         | ExprKind::Field(inner, _)
-        | ExprKind::AddrOf(_, _, inner)
-        | ExprKind::Box(inner) => has_no_effect(cx, inner),
+        | ExprKind::AddrOf(_, _, inner) => has_no_effect(cx, inner),
         ExprKind::Struct(_, fields, ref base) => {
             !has_drop(cx, cx.typeck_results().expr_ty(expr))
                 && fields.iter().all(|field| has_no_effect(cx, field.expr))
@@ -234,8 +233,7 @@ fn reduce_expression<'a>(cx: &LateContext<'_>, expr: &'a Expr<'a>) -> Option<Vec
         | ExprKind::Type(inner, _)
         | ExprKind::Unary(_, inner)
         | ExprKind::Field(inner, _)
-        | ExprKind::AddrOf(_, _, inner)
-        | ExprKind::Box(inner) => reduce_expression(cx, inner).or_else(|| Some(vec![inner])),
+        | ExprKind::AddrOf(_, _, inner) => reduce_expression(cx, inner).or_else(|| Some(vec![inner])),
         ExprKind::Struct(_, fields, ref base) => {
             if has_drop(cx, cx.typeck_results().expr_ty(expr)) {
                 None
diff --git a/src/tools/clippy/clippy_lints/src/no_mangle_with_rust_abi.rs b/src/tools/clippy/clippy_lints/src/no_mangle_with_rust_abi.rs
index bc64ccb29..8fd9ae351 100644
--- a/src/tools/clippy/clippy_lints/src/no_mangle_with_rust_abi.rs
+++ b/src/tools/clippy/clippy_lints/src/no_mangle_with_rust_abi.rs
@@ -1,9 +1,10 @@
-use clippy_utils::diagnostics::span_lint_and_sugg;
+use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::source::snippet_with_applicability;
 use rustc_errors::Applicability;
 use rustc_hir::{Item, ItemKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::{BytePos, Pos};
 use rustc_target::spec::abi::Abi;
 
 declare_clippy_lint! {
@@ -38,25 +39,28 @@ impl<'tcx> LateLintPass<'tcx> for NoMangleWithRustAbi {
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'tcx>) {
         if let ItemKind::Fn(fn_sig, _, _) = &item.kind {
             let attrs = cx.tcx.hir().attrs(item.hir_id());
-            let mut applicability = Applicability::MachineApplicable;
-            let snippet = snippet_with_applicability(cx, fn_sig.span, "..", &mut applicability);
+            let mut app = Applicability::MaybeIncorrect;
+            let snippet = snippet_with_applicability(cx, fn_sig.span, "..", &mut app);
             for attr in attrs {
                 if let Some(ident) = attr.ident()
                     && ident.name == rustc_span::sym::no_mangle
                     && fn_sig.header.abi == Abi::Rust
-                    && !snippet.contains("extern") {
+                    && let Some((fn_attrs, _)) = snippet.split_once("fn")
+                    && !fn_attrs.contains("extern")
+                {
+                    let sugg_span = fn_sig.span
+                        .with_lo(fn_sig.span.lo() + BytePos::from_usize(fn_attrs.len()))
+                        .shrink_to_lo();
 
-                    let suggestion = snippet.split_once("fn")
-                        .map_or(String::new(), |(first, second)| format!(r#"{first}extern "C" fn{second}"#));
-
-                    span_lint_and_sugg(
+                    span_lint_and_then(
                         cx,
                         NO_MANGLE_WITH_RUST_ABI,
                         fn_sig.span,
-                        "attribute #[no_mangle] set on a Rust ABI function",
-                        "try",
-                        suggestion,
-                        applicability
+                        "`#[no_mangle]` set on a function with the default (`Rust`) ABI",
+                        |diag| {
+                            diag.span_suggestion(sugg_span, "set an ABI", "extern \"C\" ", app)
+                                .span_suggestion(sugg_span, "or explicitly set the default", "extern \"Rust\" ", app);
+                        },
                     );
                 }
             }
diff --git a/src/tools/clippy/clippy_lints/src/non_octal_unix_permissions.rs b/src/tools/clippy/clippy_lints/src/non_octal_unix_permissions.rs
index 2ecb04874..e1de494eb 100644
--- a/src/tools/clippy/clippy_lints/src/non_octal_unix_permissions.rs
+++ b/src/tools/clippy/clippy_lints/src/non_octal_unix_permissions.rs
@@ -53,6 +53,7 @@ impl<'tcx> LateLintPass<'tcx> for NonOctalUnixPermissions {
                             || is_type_diagnostic_item(cx, obj_ty, sym::DirBuilder)))
                         || (path.ident.name == sym!(set_mode) && match_type(cx, obj_ty, &paths::PERMISSIONS));
                     if let ExprKind::Lit(_) = param.kind;
+                    if param.span.ctxt() == expr.span.ctxt();
 
                     then {
                         let Some(snip) = snippet_opt(cx, param.span) else {
@@ -71,6 +72,7 @@ impl<'tcx> LateLintPass<'tcx> for NonOctalUnixPermissions {
                     if let Some(def_id) = cx.qpath_res(path, func.hir_id).opt_def_id();
                     if match_def_path(cx, def_id, &paths::PERMISSIONS_FROM_MODE);
                     if let ExprKind::Lit(_) = param.kind;
+                    if param.span.ctxt() == expr.span.ctxt();
                     if let Some(snip) = snippet_opt(cx, param.span);
                     if !snip.starts_with("0o");
                     then {
diff --git a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs
index 87a8a2ed1..e57137356 100644
--- a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs
+++ b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs
@@ -143,6 +143,10 @@ impl ArithmeticSideEffects {
             return;
         }
         let has_valid_op = if Self::is_integral(lhs_ty) && Self::is_integral(rhs_ty) {
+            if let hir::BinOpKind::Shl | hir::BinOpKind::Shr = op.node {
+                // At least for integers, shifts are already handled by the CTFE
+                return;
+            }
             let (actual_lhs, lhs_ref_counter) = peel_hir_expr_refs(lhs);
             let (actual_rhs, rhs_ref_counter) = peel_hir_expr_refs(rhs);
             match (
@@ -150,11 +154,22 @@ impl ArithmeticSideEffects {
                 Self::literal_integer(cx, actual_rhs),
             ) {
                 (None, None) => false,
-                (None, Some(n)) | (Some(n), None) => match (&op.node, n) {
-                    (hir::BinOpKind::Div | hir::BinOpKind::Rem, 0) => false,
+                (None, Some(n)) => match (&op.node, n) {
+                    // Division and module are always valid if applied to non-zero integers
+                    (hir::BinOpKind::Div | hir::BinOpKind::Rem, local_n) if local_n != 0 => true,
+                    // Adding or subtracting zeros is always a no-op
+                    (hir::BinOpKind::Add | hir::BinOpKind::Sub, 0)
+                    // Multiplication by 1 or 0 will never overflow
+                    | (hir::BinOpKind::Mul, 0 | 1)
+                    => true,
+                    _ => false,
+                },
+                (Some(n), None) => match (&op.node, n) {
+                    // Adding or subtracting zeros is always a no-op
                     (hir::BinOpKind::Add | hir::BinOpKind::Sub, 0)
-                    | (hir::BinOpKind::Div | hir::BinOpKind::Rem, _)
-                    | (hir::BinOpKind::Mul, 0 | 1) => true,
+                    // Multiplication by 1 or 0 will never overflow
+                    | (hir::BinOpKind::Mul, 0 | 1)
+                    => true,
                     _ => false,
                 },
                 (Some(_), Some(_)) => {
diff --git a/src/tools/clippy/clippy_lints/src/option_if_let_else.rs b/src/tools/clippy/clippy_lints/src/option_if_let_else.rs
index c5ea09590..bbbcda069 100644
--- a/src/tools/clippy/clippy_lints/src/option_if_let_else.rs
+++ b/src/tools/clippy/clippy_lints/src/option_if_let_else.rs
@@ -12,6 +12,7 @@ use rustc_hir::{
 };
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::SyntaxContext;
 
 declare_clippy_lint! {
     /// ### What it does
@@ -95,10 +96,10 @@ struct OptionOccurrence {
     none_expr: String,
 }
 
-fn format_option_in_sugg(cx: &LateContext<'_>, cond_expr: &Expr<'_>, as_ref: bool, as_mut: bool) -> String {
+fn format_option_in_sugg(cond_sugg: Sugg<'_>, as_ref: bool, as_mut: bool) -> String {
     format!(
         "{}{}",
-        Sugg::hir_with_macro_callsite(cx, cond_expr, "..").maybe_par(),
+        cond_sugg.maybe_par(),
         if as_mut {
             ".as_mut()"
         } else if as_ref {
@@ -111,6 +112,7 @@ fn format_option_in_sugg(cx: &LateContext<'_>, cond_expr: &Expr<'_>, as_ref: boo
 
 fn try_get_option_occurrence<'tcx>(
     cx: &LateContext<'tcx>,
+    ctxt: SyntaxContext,
     pat: &Pat<'tcx>,
     expr: &Expr<'_>,
     if_then: &'tcx Expr<'_>,
@@ -160,11 +162,23 @@ fn try_get_option_occurrence<'tcx>(
                 }
             }
 
+            let mut app = Applicability::Unspecified;
             return Some(OptionOccurrence {
-                option: format_option_in_sugg(cx, cond_expr, as_ref, as_mut),
+                option: format_option_in_sugg(
+                    Sugg::hir_with_context(cx, cond_expr, ctxt, "..", &mut app),
+                    as_ref,
+                    as_mut,
+                ),
                 method_sugg: method_sugg.to_string(),
-                some_expr: format!("|{capture_mut}{capture_name}| {}", Sugg::hir_with_macro_callsite(cx, some_body, "..")),
-                none_expr: format!("{}{}", if method_sugg == "map_or" { "" } else { "|| " }, Sugg::hir_with_macro_callsite(cx, none_body, "..")),
+                some_expr: format!(
+                    "|{capture_mut}{capture_name}| {}",
+                    Sugg::hir_with_context(cx, some_body, ctxt, "..", &mut app),
+                ),
+                none_expr: format!(
+                    "{}{}",
+                    if method_sugg == "map_or" { "" } else { "|| " },
+                    Sugg::hir_with_context(cx, none_body, ctxt, "..", &mut app),
+                ),
             });
         }
     }
@@ -194,7 +208,7 @@ fn detect_option_if_let_else<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>) ->
     }) = higher::IfLet::hir(cx, expr)
     {
         if !is_else_clause(cx.tcx, expr) {
-            return try_get_option_occurrence(cx, let_pat, let_expr, if_then, if_else);
+            return try_get_option_occurrence(cx, expr.span.ctxt(), let_pat, let_expr, if_then, if_else);
         }
     }
     None
@@ -203,7 +217,7 @@ fn detect_option_if_let_else<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>) ->
 fn detect_option_match<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>) -> Option<OptionOccurrence> {
     if let ExprKind::Match(ex, arms, MatchSource::Normal) = expr.kind {
         if let Some((let_pat, if_then, if_else)) = try_convert_match(cx, arms) {
-            return try_get_option_occurrence(cx, let_pat, ex, if_then, if_else);
+            return try_get_option_occurrence(cx, expr.span.ctxt(), let_pat, ex, if_then, if_else);
         }
     }
     None
diff --git a/src/tools/clippy/clippy_lints/src/partialeq_ne_impl.rs b/src/tools/clippy/clippy_lints/src/partialeq_ne_impl.rs
index 5aa3c6f2f..a8c4823fe 100644
--- a/src/tools/clippy/clippy_lints/src/partialeq_ne_impl.rs
+++ b/src/tools/clippy/clippy_lints/src/partialeq_ne_impl.rs
@@ -36,7 +36,7 @@ impl<'tcx> LateLintPass<'tcx> for PartialEqNeImpl {
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'_>) {
         if_chain! {
             if let ItemKind::Impl(Impl { of_trait: Some(ref trait_ref), items: impl_items, .. }) = item.kind;
-            if !cx.tcx.has_attr(item.owner_id.to_def_id(), sym::automatically_derived);
+            if !cx.tcx.has_attr(item.owner_id, sym::automatically_derived);
             if let Some(eq_trait) = cx.tcx.lang_items().eq_trait();
             if trait_ref.path.res.def_id() == eq_trait;
             then {
diff --git a/src/tools/clippy/clippy_lints/src/permissions_set_readonly_false.rs b/src/tools/clippy/clippy_lints/src/permissions_set_readonly_false.rs
index e7095ec19..664d44d65 100644
--- a/src/tools/clippy/clippy_lints/src/permissions_set_readonly_false.rs
+++ b/src/tools/clippy/clippy_lints/src/permissions_set_readonly_false.rs
@@ -21,7 +21,7 @@ declare_clippy_lint! {
     /// let mut permissions = metadata.permissions();
     /// permissions.set_readonly(false);
     /// ```
-    #[clippy::version = "1.66.0"]
+    #[clippy::version = "1.68.0"]
     pub PERMISSIONS_SET_READONLY_FALSE,
     suspicious,
     "Checks for calls to `std::fs::Permissions.set_readonly` with argument `false`"
diff --git a/src/tools/clippy/clippy_lints/src/redundant_async_block.rs b/src/tools/clippy/clippy_lints/src/redundant_async_block.rs
new file mode 100644
index 000000000..a0f831764
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/redundant_async_block.rs
@@ -0,0 +1,108 @@
+use std::ops::ControlFlow;
+
+use clippy_utils::{
+    diagnostics::span_lint_and_sugg,
+    peel_blocks,
+    source::{snippet, walk_span_to_context},
+    visitors::for_each_expr,
+};
+use rustc_errors::Applicability;
+use rustc_hir::{AsyncGeneratorKind, Closure, Expr, ExprKind, GeneratorKind, MatchSource};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_middle::{lint::in_external_macro, ty::UpvarCapture};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks for `async` block that only returns `await` on a future.
+    ///
+    /// ### Why is this bad?
+    /// It is simpler and more efficient to use the future directly.
+    ///
+    /// ### Example
+    /// ```rust
+    /// let f = async {
+    ///    1 + 2
+    /// };
+    /// let fut = async {
+    ///     f.await
+    /// };
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// let f = async {
+    ///    1 + 2
+    /// };
+    /// let fut = f;
+    /// ```
+    #[clippy::version = "1.69.0"]
+    pub REDUNDANT_ASYNC_BLOCK,
+    complexity,
+    "`async { future.await }` can be replaced by `future`"
+}
+declare_lint_pass!(RedundantAsyncBlock => [REDUNDANT_ASYNC_BLOCK]);
+
+impl<'tcx> LateLintPass<'tcx> for RedundantAsyncBlock {
+    fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
+        let span = expr.span;
+        if !in_external_macro(cx.tcx.sess, span) &&
+            let Some(body_expr) = desugar_async_block(cx, expr) &&
+            let Some(expr) = desugar_await(peel_blocks(body_expr)) &&
+            // The await prefix must not come from a macro as its content could change in the future.
+            expr.span.ctxt() == body_expr.span.ctxt() &&
+            // An async block does not have immediate side-effects from a `.await` point-of-view.
+            (!expr.can_have_side_effects() || desugar_async_block(cx, expr).is_some()) &&
+            let Some(shortened_span) = walk_span_to_context(expr.span, span.ctxt())
+        {
+            span_lint_and_sugg(
+                cx,
+                REDUNDANT_ASYNC_BLOCK,
+                span,
+                "this async expression only awaits a single future",
+                "you can reduce it to",
+                snippet(cx, shortened_span, "..").into_owned(),
+                Applicability::MachineApplicable,
+            );
+        }
+    }
+}
+
+/// If `expr` is a desugared `async` block, return the original expression if it does not capture
+/// any variable by ref.
+fn desugar_async_block<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) -> Option<&'tcx Expr<'tcx>> {
+    if let ExprKind::Closure(Closure { body, def_id, .. }) = expr.kind &&
+        let body = cx.tcx.hir().body(*body) &&
+        matches!(body.generator_kind, Some(GeneratorKind::Async(AsyncGeneratorKind::Block)))
+    {
+        cx
+            .typeck_results()
+            .closure_min_captures
+            .get(def_id)
+            .map_or(true, |m| {
+                m.values().all(|places| {
+                    places
+                        .iter()
+                        .all(|place| matches!(place.info.capture_kind, UpvarCapture::ByValue))
+                })
+            })
+            .then_some(body.value)
+    } else {
+        None
+    }
+}
+
+/// If `expr` is a desugared `.await`, return the original expression if it does not come from a
+/// macro expansion.
+fn desugar_await<'tcx>(expr: &'tcx Expr<'_>) -> Option<&'tcx Expr<'tcx>> {
+    if let ExprKind::Match(match_value, _, MatchSource::AwaitDesugar) = expr.kind &&
+        let ExprKind::Call(_, [into_future_arg]) = match_value.kind &&
+        let ctxt = expr.span.ctxt() &&
+        for_each_expr(into_future_arg, |e|
+            walk_span_to_context(e.span, ctxt)
+                .map_or(ControlFlow::Break(()), |_| ControlFlow::Continue(()))).is_none()
+    {
+        Some(into_future_arg)
+    } else {
+        None
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs b/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs
index 44bf824aa..038dfe8e4 100644
--- a/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs
+++ b/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs
@@ -1,7 +1,7 @@
 use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::snippet;
-use rustc_ast::ast::{Item, ItemKind, Ty, TyKind};
+use rustc_ast::ast::{ConstItem, Item, ItemKind, StaticItem, Ty, TyKind};
 use rustc_errors::Applicability;
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
@@ -100,13 +100,13 @@ impl EarlyLintPass for RedundantStaticLifetimes {
         }
 
         if !item.span.from_expansion() {
-            if let ItemKind::Const(_, ref var_type, _) = item.kind {
+            if let ItemKind::Const(box ConstItem { ty: ref var_type, .. }) = item.kind {
                 Self::visit_type(var_type, cx, "constants have by default a `'static` lifetime");
                 // Don't check associated consts because `'static` cannot be elided on those (issue
                 // #2438)
             }
 
-            if let ItemKind::Static(ref var_type, _, _) = item.kind {
+            if let ItemKind::Static(box StaticItem { ty: ref var_type, .. }) = item.kind {
                 Self::visit_type(var_type, cx, "statics have by default a `'static` lifetime");
             }
         }
diff --git a/src/tools/clippy/clippy_lints/src/ref_option_ref.rs b/src/tools/clippy/clippy_lints/src/ref_option_ref.rs
index 448a32b77..c984a8286 100644
--- a/src/tools/clippy/clippy_lints/src/ref_option_ref.rs
+++ b/src/tools/clippy/clippy_lints/src/ref_option_ref.rs
@@ -3,7 +3,7 @@ use clippy_utils::last_path_segment;
 use clippy_utils::source::snippet;
 use if_chain::if_chain;
 use rustc_errors::Applicability;
-use rustc_hir::{GenericArg, Mutability, Ty, TyKind};
+use rustc_hir::{GenericArg, GenericArgsParentheses, Mutability, Ty, TyKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::symbol::sym;
@@ -47,7 +47,7 @@ impl<'tcx> LateLintPass<'tcx> for RefOptionRef {
 
             if cx.tcx.is_diagnostic_item(sym::Option, def_id);
             if let Some(params) = last_path_segment(qpath).args ;
-            if !params.parenthesized;
+            if params.parenthesized == GenericArgsParentheses::No;
             if let Some(inner_ty) = params.args.iter().find_map(|arg| match arg {
                 GenericArg::Type(inner_ty) => Some(inner_ty),
                 _ => None,
diff --git a/src/tools/clippy/clippy_lints/src/returns.rs b/src/tools/clippy/clippy_lints/src/returns.rs
index f0d7dd23a..df126d761 100644
--- a/src/tools/clippy/clippy_lints/src/returns.rs
+++ b/src/tools/clippy/clippy_lints/src/returns.rs
@@ -9,7 +9,7 @@ use rustc_hir::intravisit::FnKind;
 use rustc_hir::{Block, Body, Expr, ExprKind, FnDecl, LangItem, MatchSource, PatKind, QPath, StmtKind};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::lint::in_external_macro;
-use rustc_middle::ty::subst::GenericArgKind;
+use rustc_middle::ty::{self, subst::GenericArgKind, Ty};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
@@ -175,7 +175,7 @@ impl<'tcx> LateLintPass<'tcx> for Return {
                 } else {
                     RetReplacement::Empty
                 };
-                check_final_expr(cx, body.value, vec![], replacement);
+                check_final_expr(cx, body.value, vec![], replacement, None);
             },
             FnKind::ItemFn(..) | FnKind::Method(..) => {
                 check_block_return(cx, &body.value.kind, sp, vec![]);
@@ -188,11 +188,11 @@ impl<'tcx> LateLintPass<'tcx> for Return {
 fn check_block_return<'tcx>(cx: &LateContext<'tcx>, expr_kind: &ExprKind<'tcx>, sp: Span, mut semi_spans: Vec<Span>) {
     if let ExprKind::Block(block, _) = expr_kind {
         if let Some(block_expr) = block.expr {
-            check_final_expr(cx, block_expr, semi_spans, RetReplacement::Empty);
+            check_final_expr(cx, block_expr, semi_spans, RetReplacement::Empty, None);
         } else if let Some(stmt) = block.stmts.iter().last() {
             match stmt.kind {
                 StmtKind::Expr(expr) => {
-                    check_final_expr(cx, expr, semi_spans, RetReplacement::Empty);
+                    check_final_expr(cx, expr, semi_spans, RetReplacement::Empty, None);
                 },
                 StmtKind::Semi(semi_expr) => {
                     // Remove ending semicolons and any whitespace ' ' in between.
@@ -202,7 +202,7 @@ fn check_block_return<'tcx>(cx: &LateContext<'tcx>, expr_kind: &ExprKind<'tcx>,
                             span_find_starting_semi(cx.sess().source_map(), semi_span.with_hi(sp.hi()));
                         semi_spans.push(semi_span_to_remove);
                     }
-                    check_final_expr(cx, semi_expr, semi_spans, RetReplacement::Empty);
+                    check_final_expr(cx, semi_expr, semi_spans, RetReplacement::Empty, None);
                 },
                 _ => (),
             }
@@ -216,6 +216,7 @@ fn check_final_expr<'tcx>(
     semi_spans: Vec<Span>, /* containing all the places where we would need to remove semicolons if finding an
                             * needless return */
     replacement: RetReplacement<'tcx>,
+    match_ty_opt: Option<Ty<'_>>,
 ) {
     let peeled_drop_expr = expr.peel_drop_temps();
     match &peeled_drop_expr.kind {
@@ -244,7 +245,22 @@ fn check_final_expr<'tcx>(
                     RetReplacement::Expr(snippet, applicability)
                 }
             } else {
-                replacement
+                match match_ty_opt {
+                    Some(match_ty) => {
+                        match match_ty.kind() {
+                            // If the code got till here with
+                            // tuple not getting detected before it,
+                            // then we are sure it's going to be Unit
+                            // type
+                            ty::Tuple(_) => RetReplacement::Unit,
+                            // We don't want to anything in this case
+                            // cause we can't predict what the user would
+                            // want here
+                            _ => return,
+                        }
+                    },
+                    None => replacement,
+                }
             };
 
             if !cx.tcx.hir().attrs(expr.hir_id).is_empty() {
@@ -268,8 +284,9 @@ fn check_final_expr<'tcx>(
         // note, if without else is going to be a type checking error anyways
         // (except for unit type functions) so we don't match it
         ExprKind::Match(_, arms, MatchSource::Normal) => {
+            let match_ty = cx.typeck_results().expr_ty(peeled_drop_expr);
             for arm in arms.iter() {
-                check_final_expr(cx, arm.body, semi_spans.clone(), RetReplacement::Unit);
+                check_final_expr(cx, arm.body, semi_spans.clone(), RetReplacement::Unit, Some(match_ty));
             }
         },
         // if it's a whole block, check it
@@ -293,6 +310,7 @@ fn emit_return_lint(cx: &LateContext<'_>, ret_span: Span, semi_spans: Vec<Span>,
     if ret_span.from_expansion() {
         return;
     }
+
     let applicability = replacement.applicability().unwrap_or(Applicability::MachineApplicable);
     let return_replacement = replacement.to_string();
     let sugg_help = replacement.sugg_help();
diff --git a/src/tools/clippy/clippy_lints/src/semicolon_if_nothing_returned.rs b/src/tools/clippy/clippy_lints/src/semicolon_if_nothing_returned.rs
index 66638eed9..355f907e2 100644
--- a/src/tools/clippy/clippy_lints/src/semicolon_if_nothing_returned.rs
+++ b/src/tools/clippy/clippy_lints/src/semicolon_if_nothing_returned.rs
@@ -1,7 +1,6 @@
 use crate::rustc_lint::LintContext;
 use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::source::snippet_with_macro_callsite;
-use clippy_utils::sugg;
+use clippy_utils::source::snippet_with_context;
 use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir::{Block, ExprKind};
@@ -44,7 +43,8 @@ impl<'tcx> LateLintPass<'tcx> for SemicolonIfNothingReturned {
             if let Some(expr) = block.expr;
             let t_expr = cx.typeck_results().expr_ty(expr);
             if t_expr.is_unit();
-            if let snippet = snippet_with_macro_callsite(cx, expr.span, "}");
+            let mut app = Applicability::MaybeIncorrect;
+            if let snippet = snippet_with_context(cx, expr.span, block.span.ctxt(), "}", &mut app).0;
             if !snippet.ends_with('}') && !snippet.ends_with(';');
             if cx.sess().source_map().is_multiline(block.span);
             then {
@@ -52,17 +52,14 @@ impl<'tcx> LateLintPass<'tcx> for SemicolonIfNothingReturned {
                 if let ExprKind::DropTemps(..) = &expr.kind {
                     return;
                 }
-
-                let sugg = sugg::Sugg::hir_with_macro_callsite(cx, expr, "..");
-                let suggestion = format!("{sugg};");
                 span_lint_and_sugg(
                     cx,
                     SEMICOLON_IF_NOTHING_RETURNED,
                     expr.span.source_callsite(),
                     "consider adding a `;` to the last statement for consistent formatting",
                     "add a `;` here",
-                    suggestion,
-                    Applicability::MaybeIncorrect,
+                    format!("{snippet};"),
+                    app,
                 );
             }
         }
diff --git a/src/tools/clippy/clippy_lints/src/shadow.rs b/src/tools/clippy/clippy_lints/src/shadow.rs
index 87f966ced..ae7d19624 100644
--- a/src/tools/clippy/clippy_lints/src/shadow.rs
+++ b/src/tools/clippy/clippy_lints/src/shadow.rs
@@ -213,8 +213,7 @@ fn is_self_shadow(cx: &LateContext<'_>, pat: &Pat<'_>, mut expr: &Expr<'_>, hir_
     }
     loop {
         expr = match expr.kind {
-            ExprKind::Box(e)
-            | ExprKind::AddrOf(_, _, e)
+            ExprKind::AddrOf(_, _, e)
             | ExprKind::Block(
                 &Block {
                     stmts: [],
diff --git a/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs b/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs
index c3e99aa00..869358fb1 100644
--- a/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs
+++ b/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs
@@ -404,7 +404,6 @@ impl<'cx, 'sdt, 'tcx> Visitor<'tcx> for SigDropFinder<'cx, 'sdt, 'tcx> {
             | hir::ExprKind::Assign(..)
             | hir::ExprKind::AssignOp(..)
             | hir::ExprKind::Binary(..)
-            | hir::ExprKind::Box(..)
             | hir::ExprKind::Call(..)
             | hir::ExprKind::Field(..)
             | hir::ExprKind::If(..)
diff --git a/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs b/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs
index d46f6a635..5743dd21c 100644
--- a/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs
+++ b/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs
@@ -1,6 +1,7 @@
 use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_sugg};
 use rustc_ast::node_id::{NodeId, NodeMap};
-use rustc_ast::{ptr::P, Crate, Item, ItemKind, MacroDef, ModKind, UseTreeKind};
+use rustc_ast::visit::{walk_expr, Visitor};
+use rustc_ast::{ptr::P, Crate, Expr, ExprKind, Item, ItemKind, MacroDef, ModKind, Ty, TyKind, UseTreeKind};
 use rustc_errors::Applicability;
 use rustc_lint::{EarlyContext, EarlyLintPass, LintContext};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
@@ -55,7 +56,7 @@ impl EarlyLintPass for SingleComponentPathImports {
             return;
         }
 
-        self.check_mod(cx, &krate.items);
+        self.check_mod(&krate.items);
     }
 
     fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item) {
@@ -84,8 +85,43 @@ impl EarlyLintPass for SingleComponentPathImports {
     }
 }
 
+#[derive(Default)]
+struct ImportUsageVisitor {
+    // keep track of imports reused with `self` keyword, such as `self::std` in the example below.
+    // Removing the `use std;` would make this a compile error (#10549)
+    // ```
+    // use std;
+    //
+    // fn main() {
+    //     let _ = self::std::io::stdout();
+    // }
+    // ```
+    imports_referenced_with_self: Vec<Symbol>,
+}
+
+impl<'tcx> Visitor<'tcx> for ImportUsageVisitor {
+    fn visit_expr(&mut self, expr: &Expr) {
+        if let ExprKind::Path(_, path) = &expr.kind
+            && path.segments.len() > 1
+            && path.segments[0].ident.name == kw::SelfLower
+        {
+            self.imports_referenced_with_self.push(path.segments[1].ident.name);
+        }
+        walk_expr(self, expr);
+    }
+
+    fn visit_ty(&mut self, ty: &Ty) {
+        if let TyKind::Path(_, path) = &ty.kind
+            && path.segments.len() > 1
+            && path.segments[0].ident.name == kw::SelfLower
+        {
+            self.imports_referenced_with_self.push(path.segments[1].ident.name);
+        }
+    }
+}
+
 impl SingleComponentPathImports {
-    fn check_mod(&mut self, cx: &EarlyContext<'_>, items: &[P<Item>]) {
+    fn check_mod(&mut self, items: &[P<Item>]) {
         // keep track of imports reused with `self` keyword, such as `self::crypto_hash` in the example
         // below. Removing the `use crypto_hash;` would make this a compile error
         // ```
@@ -108,18 +144,16 @@ impl SingleComponentPathImports {
         // ```
         let mut macros = Vec::new();
 
+        let mut import_usage_visitor = ImportUsageVisitor::default();
         for item in items {
-            self.track_uses(
-                cx,
-                item,
-                &mut imports_reused_with_self,
-                &mut single_use_usages,
-                &mut macros,
-            );
+            self.track_uses(item, &mut imports_reused_with_self, &mut single_use_usages, &mut macros);
+            import_usage_visitor.visit_item(item);
         }
 
         for usage in single_use_usages {
-            if !imports_reused_with_self.contains(&usage.name) {
+            if !imports_reused_with_self.contains(&usage.name)
+                && !import_usage_visitor.imports_referenced_with_self.contains(&usage.name)
+            {
                 self.found.entry(usage.item_id).or_default().push(usage);
             }
         }
@@ -127,7 +161,6 @@ impl SingleComponentPathImports {
 
     fn track_uses(
         &mut self,
-        cx: &EarlyContext<'_>,
         item: &Item,
         imports_reused_with_self: &mut Vec<Symbol>,
         single_use_usages: &mut Vec<SingleUse>,
@@ -139,7 +172,7 @@ impl SingleComponentPathImports {
 
         match &item.kind {
             ItemKind::Mod(_, ModKind::Loaded(ref items, ..)) => {
-                self.check_mod(cx, items);
+                self.check_mod(items);
             },
             ItemKind::MacroDef(MacroDef { macro_rules: true, .. }) => {
                 macros.push(item.ident.name);
diff --git a/src/tools/clippy/clippy_lints/src/size_of_ref.rs b/src/tools/clippy/clippy_lints/src/size_of_ref.rs
index 3fcdb4288..8abec06c6 100644
--- a/src/tools/clippy/clippy_lints/src/size_of_ref.rs
+++ b/src/tools/clippy/clippy_lints/src/size_of_ref.rs
@@ -45,7 +45,7 @@ declare_clippy_lint! {
     ///     }
     /// }
     /// ```
-    #[clippy::version = "1.67.0"]
+    #[clippy::version = "1.68.0"]
     pub SIZE_OF_REF,
     suspicious,
     "Argument to `std::mem::size_of_val()` is a double-reference, which is almost certainly unintended"
diff --git a/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs b/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs
index d6b336bef..a13bc7a51 100644
--- a/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs
+++ b/src/tools/clippy/clippy_lints/src/std_instead_of_core.rs
@@ -2,7 +2,6 @@ use clippy_utils::diagnostics::span_lint_and_help;
 use rustc_hir::def_id::DefId;
 use rustc_hir::{def::Res, HirId, Path, PathSegment};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::DefIdTree;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::{sym, symbol::kw, Span};
 
diff --git a/src/tools/clippy/clippy_lints/src/suspicious_doc_comments.rs b/src/tools/clippy/clippy_lints/src/suspicious_doc_comments.rs
new file mode 100644
index 000000000..e5746ca99
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/suspicious_doc_comments.rs
@@ -0,0 +1,94 @@
+use clippy_utils::diagnostics::{multispan_sugg_with_applicability, span_lint_and_then};
+use if_chain::if_chain;
+use rustc_ast::{token::CommentKind, AttrKind, AttrStyle, Attribute, Item};
+use rustc_errors::Applicability;
+use rustc_lint::{EarlyContext, EarlyLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::Span;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Detects the use of outer doc comments (`///`, `/**`) followed by a bang (`!`): `///!`
+    ///
+    /// ### Why is this bad?
+    /// Triple-slash comments (known as "outer doc comments") apply to items that follow it.
+    /// An outer doc comment followed by a bang (i.e. `///!`) has no specific meaning.
+    ///
+    /// The user most likely meant to write an inner doc comment (`//!`, `/*!`), which
+    /// applies to the parent item (i.e. the item that the comment is contained in,
+    /// usually a module or crate).
+    ///
+    /// ### Known problems
+    /// Inner doc comments can only appear before items, so there are certain cases where the suggestion
+    /// made by this lint is not valid code. For example:
+    /// ```rs
+    /// fn foo() {}
+    /// ///!
+    /// fn bar() {}
+    /// ```
+    /// This lint detects the doc comment and suggests changing it to `//!`, but an inner doc comment
+    /// is not valid at that position.
+    ///
+    /// ### Example
+    /// In this example, the doc comment is attached to the *function*, rather than the *module*.
+    /// ```rust
+    /// pub mod util {
+    ///     ///! This module contains utility functions.
+    ///
+    ///     pub fn dummy() {}
+    /// }
+    /// ```
+    ///
+    /// Use instead:
+    /// ```rust
+    /// pub mod util {
+    ///     //! This module contains utility functions.
+    ///
+    ///     pub fn dummy() {}
+    /// }
+    /// ```
+    #[clippy::version = "1.70.0"]
+    pub SUSPICIOUS_DOC_COMMENTS,
+    suspicious,
+    "suspicious usage of (outer) doc comments"
+}
+declare_lint_pass!(SuspiciousDocComments => [SUSPICIOUS_DOC_COMMENTS]);
+
+const WARNING: &str = "this is an outer doc comment and does not apply to the parent module or crate";
+const HELP: &str = "use an inner doc comment to document the parent module or crate";
+
+impl EarlyLintPass for SuspiciousDocComments {
+    fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item) {
+        let replacements = collect_doc_comment_replacements(&item.attrs);
+
+        if let Some(((lo_span, _), (hi_span, _))) = replacements.first().zip(replacements.last()) {
+            let span = lo_span.to(*hi_span);
+
+            span_lint_and_then(cx, SUSPICIOUS_DOC_COMMENTS, span, WARNING, |diag| {
+                multispan_sugg_with_applicability(diag, HELP, Applicability::MaybeIncorrect, replacements);
+            });
+        }
+    }
+}
+
+fn collect_doc_comment_replacements(attrs: &[Attribute]) -> Vec<(Span, String)> {
+    attrs
+        .iter()
+        .filter_map(|attr| {
+            if_chain! {
+                if let AttrKind::DocComment(com_kind, sym) = attr.kind;
+                if let AttrStyle::Outer = attr.style;
+                if let Some(com) = sym.as_str().strip_prefix('!');
+                then {
+                    let sugg = match com_kind {
+                        CommentKind::Line => format!("//!{com}"),
+                        CommentKind::Block => format!("/*!{com}*/")
+                    };
+                    Some((attr.span, sugg))
+                } else {
+                    None
+                }
+            }
+        })
+        .collect()
+}
diff --git a/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs b/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs
index e111c7d22..fab8e9c2e 100644
--- a/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs
+++ b/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs
@@ -578,7 +578,7 @@ fn ident_difference_expr_with_base_location(
         | (Assign(_, _, _), Assign(_, _, _))
         | (TryBlock(_), TryBlock(_))
         | (Await(_), Await(_))
-        | (Async(_, _, _), Async(_, _, _))
+        | (Async(_, _), Async(_, _))
         | (Block(_, _), Block(_, _))
         | (Closure(_), Closure(_))
         | (Match(_, _), Match(_, _))
@@ -596,8 +596,7 @@ fn ident_difference_expr_with_base_location(
         | (MethodCall(_), MethodCall(_))
         | (Call(_, _), Call(_, _))
         | (ConstBlock(_), ConstBlock(_))
-        | (Array(_), Array(_))
-        | (Box(_), Box(_)) => {
+        | (Array(_), Array(_)) => {
             // keep going
         },
         _ => {
diff --git a/src/tools/clippy/clippy_lints/src/swap.rs b/src/tools/clippy/clippy_lints/src/swap.rs
index 0f062cecf..f7eef03d1 100644
--- a/src/tools/clippy/clippy_lints/src/swap.rs
+++ b/src/tools/clippy/clippy_lints/src/swap.rs
@@ -1,15 +1,17 @@
 use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_and_then};
-use clippy_utils::source::snippet_with_applicability;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::sugg::Sugg;
 use clippy_utils::ty::is_type_diagnostic_item;
 use clippy_utils::{can_mut_borrow_both, eq_expr_value, in_constant, std_or_core};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir::{BinOpKind, Block, Expr, ExprKind, PatKind, QPath, Stmt, StmtKind};
-use rustc_lint::{LateContext, LateLintPass};
+use rustc_lint::{LateContext, LateLintPass, LintContext};
+use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::source_map::Spanned;
+use rustc_span::SyntaxContext;
 use rustc_span::{sym, symbol::Ident, Span};
 
 declare_clippy_lint! {
@@ -80,43 +82,45 @@ impl<'tcx> LateLintPass<'tcx> for Swap {
 }
 
 fn generate_swap_warning(cx: &LateContext<'_>, e1: &Expr<'_>, e2: &Expr<'_>, span: Span, is_xor_based: bool) {
+    let ctxt = span.ctxt();
     let mut applicability = Applicability::MachineApplicable;
 
     if !can_mut_borrow_both(cx, e1, e2) {
-        if let ExprKind::Index(lhs1, idx1) = e1.kind {
-            if let ExprKind::Index(lhs2, idx2) = e2.kind {
-                if eq_expr_value(cx, lhs1, lhs2) {
-                    let ty = cx.typeck_results().expr_ty(lhs1).peel_refs();
+        if let ExprKind::Index(lhs1, idx1) = e1.kind
+            && let ExprKind::Index(lhs2, idx2) = e2.kind
+            && eq_expr_value(cx, lhs1, lhs2)
+            && e1.span.ctxt() == ctxt
+            && e2.span.ctxt() == ctxt
+        {
+            let ty = cx.typeck_results().expr_ty(lhs1).peel_refs();
 
-                    if matches!(ty.kind(), ty::Slice(_))
-                        || matches!(ty.kind(), ty::Array(_, _))
-                        || is_type_diagnostic_item(cx, ty, sym::Vec)
-                        || is_type_diagnostic_item(cx, ty, sym::VecDeque)
-                    {
-                        let slice = Sugg::hir_with_applicability(cx, lhs1, "<slice>", &mut applicability);
-                        span_lint_and_sugg(
-                            cx,
-                            MANUAL_SWAP,
-                            span,
-                            &format!("this looks like you are swapping elements of `{slice}` manually"),
-                            "try",
-                            format!(
-                                "{}.swap({}, {})",
-                                slice.maybe_par(),
-                                snippet_with_applicability(cx, idx1.span, "..", &mut applicability),
-                                snippet_with_applicability(cx, idx2.span, "..", &mut applicability),
-                            ),
-                            applicability,
-                        );
-                    }
-                }
+            if matches!(ty.kind(), ty::Slice(_))
+                || matches!(ty.kind(), ty::Array(_, _))
+                || is_type_diagnostic_item(cx, ty, sym::Vec)
+                || is_type_diagnostic_item(cx, ty, sym::VecDeque)
+            {
+                let slice = Sugg::hir_with_applicability(cx, lhs1, "<slice>", &mut applicability);
+                span_lint_and_sugg(
+                    cx,
+                    MANUAL_SWAP,
+                    span,
+                    &format!("this looks like you are swapping elements of `{slice}` manually"),
+                    "try",
+                    format!(
+                        "{}.swap({}, {});",
+                        slice.maybe_par(),
+                        snippet_with_context(cx, idx1.span, ctxt, "..", &mut applicability).0,
+                        snippet_with_context(cx, idx2.span, ctxt, "..", &mut applicability).0,
+                    ),
+                    applicability,
+                );
             }
         }
         return;
     }
 
-    let first = Sugg::hir_with_applicability(cx, e1, "..", &mut applicability);
-    let second = Sugg::hir_with_applicability(cx, e2, "..", &mut applicability);
+    let first = Sugg::hir_with_context(cx, e1, ctxt, "..", &mut applicability);
+    let second = Sugg::hir_with_context(cx, e2, ctxt, "..", &mut applicability);
     let Some(sugg) = std_or_core(cx) else { return };
 
     span_lint_and_then(
@@ -128,7 +132,7 @@ fn generate_swap_warning(cx: &LateContext<'_>, e1: &Expr<'_>, e2: &Expr<'_>, spa
             diag.span_suggestion(
                 span,
                 "try",
-                format!("{sugg}::mem::swap({}, {})", first.mut_addr(), second.mut_addr()),
+                format!("{sugg}::mem::swap({}, {});", first.mut_addr(), second.mut_addr()),
                 applicability,
             );
             if !is_xor_based {
@@ -144,19 +148,19 @@ fn check_manual_swap(cx: &LateContext<'_>, block: &Block<'_>) {
         return;
     }
 
-    for w in block.stmts.windows(3) {
+    for [s1, s2, s3] in block.stmts.array_windows::<3>() {
         if_chain! {
             // let t = foo();
-            if let StmtKind::Local(tmp) = w[0].kind;
+            if let StmtKind::Local(tmp) = s1.kind;
             if let Some(tmp_init) = tmp.init;
             if let PatKind::Binding(.., ident, None) = tmp.pat.kind;
 
             // foo() = bar();
-            if let StmtKind::Semi(first) = w[1].kind;
+            if let StmtKind::Semi(first) = s2.kind;
             if let ExprKind::Assign(lhs1, rhs1, _) = first.kind;
 
             // bar() = t;
-            if let StmtKind::Semi(second) = w[2].kind;
+            if let StmtKind::Semi(second) = s3.kind;
             if let ExprKind::Assign(lhs2, rhs2, _) = second.kind;
             if let ExprKind::Path(QPath::Resolved(None, rhs2)) = rhs2.kind;
             if rhs2.segments.len() == 1;
@@ -164,8 +168,15 @@ fn check_manual_swap(cx: &LateContext<'_>, block: &Block<'_>) {
             if ident.name == rhs2.segments[0].ident.name;
             if eq_expr_value(cx, tmp_init, lhs1);
             if eq_expr_value(cx, rhs1, lhs2);
+
+            let ctxt = s1.span.ctxt();
+            if s2.span.ctxt() == ctxt;
+            if s3.span.ctxt() == ctxt;
+            if first.span.ctxt() == ctxt;
+            if second.span.ctxt() == ctxt;
+
             then {
-                let span = w[0].span.to(second.span);
+                let span = s1.span.to(s3.span);
                 generate_swap_warning(cx, lhs1, lhs2, span, false);
             }
         }
@@ -178,8 +189,10 @@ fn check_suspicious_swap(cx: &LateContext<'_>, block: &Block<'_>) {
         if let Some((lhs0, rhs0)) = parse(first)
             && let Some((lhs1, rhs1)) = parse(second)
             && first.span.eq_ctxt(second.span)
+			&& !in_external_macro(cx.sess(), first.span)
             && is_same(cx, lhs0, rhs1)
             && is_same(cx, lhs1, rhs0)
+			&& !is_same(cx, lhs1, rhs1) // Ignore a = b; a = a (#10421)
             && let Some(lhs_sugg) = match &lhs0 {
                 ExprOrIdent::Expr(expr) => Sugg::hir_opt(cx, expr),
                 ExprOrIdent::Ident(ident) => Some(Sugg::NonParen(ident.as_str().into())),
@@ -246,17 +259,20 @@ fn parse<'a, 'hir>(stmt: &'a Stmt<'hir>) -> Option<(ExprOrIdent<'hir>, &'a Expr<
 
 /// Implementation of the xor case for `MANUAL_SWAP` lint.
 fn check_xor_swap(cx: &LateContext<'_>, block: &Block<'_>) {
-    for window in block.stmts.windows(3) {
+    for [s1, s2, s3] in block.stmts.array_windows::<3>() {
+        let ctxt = s1.span.ctxt();
         if_chain! {
-            if let Some((lhs0, rhs0)) = extract_sides_of_xor_assign(&window[0]);
-            if let Some((lhs1, rhs1)) = extract_sides_of_xor_assign(&window[1]);
-            if let Some((lhs2, rhs2)) = extract_sides_of_xor_assign(&window[2]);
+            if let Some((lhs0, rhs0)) = extract_sides_of_xor_assign(s1, ctxt);
+            if let Some((lhs1, rhs1)) = extract_sides_of_xor_assign(s2, ctxt);
+            if let Some((lhs2, rhs2)) = extract_sides_of_xor_assign(s3, ctxt);
             if eq_expr_value(cx, lhs0, rhs1);
             if eq_expr_value(cx, lhs2, rhs1);
             if eq_expr_value(cx, lhs1, rhs0);
             if eq_expr_value(cx, lhs1, rhs2);
+            if s2.span.ctxt() == ctxt;
+            if s3.span.ctxt() == ctxt;
             then {
-                let span = window[0].span.to(window[2].span);
+                let span = s1.span.to(s3.span);
                 generate_swap_warning(cx, lhs0, rhs0, span, true);
             }
         };
@@ -264,9 +280,12 @@ fn check_xor_swap(cx: &LateContext<'_>, block: &Block<'_>) {
 }
 
 /// Returns the lhs and rhs of an xor assignment statement.
-fn extract_sides_of_xor_assign<'a, 'hir>(stmt: &'a Stmt<'hir>) -> Option<(&'a Expr<'hir>, &'a Expr<'hir>)> {
-    if let StmtKind::Semi(expr) = stmt.kind {
-        if let ExprKind::AssignOp(
+fn extract_sides_of_xor_assign<'a, 'hir>(
+    stmt: &'a Stmt<'hir>,
+    ctxt: SyntaxContext,
+) -> Option<(&'a Expr<'hir>, &'a Expr<'hir>)> {
+    if let StmtKind::Semi(expr) = stmt.kind
+        && let ExprKind::AssignOp(
             Spanned {
                 node: BinOpKind::BitXor,
                 ..
@@ -274,9 +293,10 @@ fn extract_sides_of_xor_assign<'a, 'hir>(stmt: &'a Stmt<'hir>) -> Option<(&'a Ex
             lhs,
             rhs,
         ) = expr.kind
-        {
-            return Some((lhs, rhs));
-        }
+        && expr.span.ctxt() == ctxt
+    {
+        Some((lhs, rhs))
+    } else {
+        None
     }
-    None
 }
diff --git a/src/tools/clippy/clippy_lints/src/tests_outside_test_module.rs b/src/tools/clippy/clippy_lints/src/tests_outside_test_module.rs
new file mode 100644
index 000000000..0a0a77082
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/tests_outside_test_module.rs
@@ -0,0 +1,71 @@
+use clippy_utils::{diagnostics::span_lint_and_note, is_in_cfg_test, is_in_test_function};
+use rustc_hir::{intravisit::FnKind, Body, FnDecl};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::{def_id::LocalDefId, Span};
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Triggers when a testing function (marked with the `#[test]` attribute) isn't inside a testing module
+    /// (marked with `#[cfg(test)]`).
+    /// ### Why is this bad?
+    /// The idiomatic (and more performant) way of writing tests is inside a testing module (flagged with `#[cfg(test)]`),
+    /// having test functions outside of this module is confusing and may lead to them being "hidden".
+    /// ### Example
+    /// ```rust
+    /// #[test]
+    /// fn my_cool_test() {
+    ///     // [...]
+    /// }
+    ///
+    /// #[cfg(test)]
+    /// mod tests {
+    ///     // [...]
+    /// }
+    ///
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// #[cfg(test)]
+    /// mod tests {
+    ///     #[test]
+    ///     fn my_cool_test() {
+    ///         // [...]
+    ///     }
+    /// }
+    /// ```
+    #[clippy::version = "1.70.0"]
+    pub TESTS_OUTSIDE_TEST_MODULE,
+    restriction,
+    "A test function is outside the testing module."
+}
+
+declare_lint_pass!(TestsOutsideTestModule => [TESTS_OUTSIDE_TEST_MODULE]);
+
+impl LateLintPass<'_> for TestsOutsideTestModule {
+    fn check_fn(
+        &mut self,
+        cx: &LateContext<'_>,
+        kind: FnKind<'_>,
+        _: &FnDecl<'_>,
+        body: &Body<'_>,
+        sp: Span,
+        _: LocalDefId,
+    ) {
+        if_chain! {
+            if !matches!(kind, FnKind::Closure);
+            if is_in_test_function(cx.tcx, body.id().hir_id);
+            if !is_in_cfg_test(cx.tcx, body.id().hir_id);
+            then {
+                span_lint_and_note(
+                    cx,
+                    TESTS_OUTSIDE_TEST_MODULE,
+                    sp,
+                    "this function marked with #[test] is outside a #[cfg(test)] module",
+                    None,
+                    "move it to a testing module marked with #[cfg(test)]",
+                );
+            }
+        }
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/transmute/mod.rs b/src/tools/clippy/clippy_lints/src/transmute/mod.rs
index c01cbe509..0dc30f7a9 100644
--- a/src/tools/clippy/clippy_lints/src/transmute/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/transmute/mod.rs
@@ -458,7 +458,7 @@ declare_clippy_lint! {
     /// ```rust
     /// let null_fn: Option<fn()> = None;
     /// ```
-    #[clippy::version = "1.67.0"]
+    #[clippy::version = "1.68.0"]
     pub TRANSMUTE_NULL_TO_FN,
     correctness,
     "transmute results in a null function pointer, which is undefined behavior"
diff --git a/src/tools/clippy/clippy_lints/src/transmute/transmutes_expressible_as_ptr_casts.rs b/src/tools/clippy/clippy_lints/src/transmute/transmutes_expressible_as_ptr_casts.rs
index 8530b4324..85cd74f23 100644
--- a/src/tools/clippy/clippy_lints/src/transmute/transmutes_expressible_as_ptr_casts.rs
+++ b/src/tools/clippy/clippy_lints/src/transmute/transmutes_expressible_as_ptr_casts.rs
@@ -2,8 +2,9 @@ use super::utils::check_cast;
 use super::TRANSMUTES_EXPRESSIBLE_AS_PTR_CASTS;
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::sugg::Sugg;
+use rustc_ast::ExprPrecedence;
 use rustc_errors::Applicability;
-use rustc_hir::Expr;
+use rustc_hir::{Expr, Node};
 use rustc_lint::LateContext;
 use rustc_middle::ty::{cast::CastKind, Ty};
 
@@ -19,7 +20,7 @@ pub(super) fn check<'tcx>(
 ) -> bool {
     use CastKind::{AddrPtrCast, ArrayPtrCast, FnPtrAddrCast, FnPtrPtrCast, PtrAddrCast, PtrPtrCast};
     let mut app = Applicability::MachineApplicable;
-    let sugg = match check_cast(cx, e, from_ty, to_ty) {
+    let mut sugg = match check_cast(cx, e, from_ty, to_ty) {
         Some(PtrPtrCast | AddrPtrCast | ArrayPtrCast | FnPtrPtrCast | FnPtrAddrCast) => {
             Sugg::hir_with_context(cx, arg, e.span.ctxt(), "..", &mut app)
                 .as_ty(to_ty.to_string())
@@ -39,6 +40,12 @@ pub(super) fn check<'tcx>(
         _ => return false,
     };
 
+    if let Node::Expr(parent) = cx.tcx.hir().get_parent(e.hir_id)
+        && parent.precedence().order() > ExprPrecedence::Cast.order()
+    {
+        sugg = format!("({sugg})");
+    }
+
     span_lint_and_sugg(
         cx,
         TRANSMUTES_EXPRESSIBLE_AS_PTR_CASTS,
diff --git a/src/tools/clippy/clippy_lints/src/transmute/utils.rs b/src/tools/clippy/clippy_lints/src/transmute/utils.rs
index cddaf9450..62efd13b8 100644
--- a/src/tools/clippy/clippy_lints/src/transmute/utils.rs
+++ b/src/tools/clippy/clippy_lints/src/transmute/utils.rs
@@ -33,38 +33,37 @@ pub(super) fn check_cast<'tcx>(
     let hir_id = e.hir_id;
     let local_def_id = hir_id.owner.def_id;
 
-    Inherited::build(cx.tcx, local_def_id).enter(|inherited| {
-        let fn_ctxt = FnCtxt::new(inherited, cx.param_env, local_def_id);
+    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.
+    // 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,
+        from_ty,
+        to_ty,
+        // We won't show any error to the user, so we don't care what the span is here.
+        DUMMY_SP,
+        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(),
-            "Newly created FnCtxt contained errors"
+            "`fn_ctxt` contained errors after cast check!"
         );
 
-        if let Ok(check) = cast::CastCheck::new(
-            &fn_ctxt,
-            e,
-            from_ty,
-            to_ty,
-            // We won't show any error to the user, so we don't care what the span is here.
-            DUMMY_SP,
-            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()
-        } else {
-            None
-        }
-    })
+        res.ok()
+    } else {
+        None
+    }
 }
diff --git a/src/tools/clippy/clippy_lints/src/types/borrowed_box.rs b/src/tools/clippy/clippy_lints/src/types/borrowed_box.rs
index 65dfe7637..acdf54710 100644
--- a/src/tools/clippy/clippy_lints/src/types/borrowed_box.rs
+++ b/src/tools/clippy/clippy_lints/src/types/borrowed_box.rs
@@ -20,7 +20,7 @@ pub(super) fn check(cx: &LateContext<'_>, hir_ty: &hir::Ty<'_>, lt: &Lifetime, m
                 if let QPath::Resolved(None, path) = *qpath;
                 if let [ref bx] = *path.segments;
                 if let Some(params) = bx.args;
-                if !params.parenthesized;
+                if params.parenthesized == hir::GenericArgsParentheses::No;
                 if let Some(inner) = params.args.iter().find_map(|arg| match arg {
                     GenericArg::Type(ty) => Some(ty),
                     _ => None,
diff --git a/src/tools/clippy/clippy_lints/src/types/utils.rs b/src/tools/clippy/clippy_lints/src/types/utils.rs
index 7f43b7841..a30748db8 100644
--- a/src/tools/clippy/clippy_lints/src/types/utils.rs
+++ b/src/tools/clippy/clippy_lints/src/types/utils.rs
@@ -1,6 +1,6 @@
 use clippy_utils::last_path_segment;
 use if_chain::if_chain;
-use rustc_hir::{GenericArg, QPath, TyKind};
+use rustc_hir::{GenericArg, GenericArgsParentheses, QPath, TyKind};
 use rustc_lint::LateContext;
 use rustc_span::source_map::Span;
 
@@ -8,7 +8,7 @@ pub(super) fn match_borrows_parameter(_cx: &LateContext<'_>, qpath: &QPath<'_>)
     let last = last_path_segment(qpath);
     if_chain! {
         if let Some(params) = last.args;
-        if !params.parenthesized;
+        if params.parenthesized == GenericArgsParentheses::No;
         if let Some(ty) = params.args.iter().find_map(|arg| match arg {
             GenericArg::Type(ty) => Some(ty),
             _ => None,
diff --git a/src/tools/clippy/clippy_lints/src/unit_types/let_unit_value.rs b/src/tools/clippy/clippy_lints/src/unit_types/let_unit_value.rs
index d6167a621..cc7c2b039 100644
--- a/src/tools/clippy/clippy_lints/src/unit_types/let_unit_value.rs
+++ b/src/tools/clippy/clippy_lints/src/unit_types/let_unit_value.rs
@@ -1,11 +1,11 @@
 use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::get_parent_node;
-use clippy_utils::source::snippet_with_macro_callsite;
+use clippy_utils::source::snippet_with_context;
 use clippy_utils::visitors::{for_each_local_assignment, for_each_value_source};
 use core::ops::ControlFlow;
 use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
-use rustc_hir::{Expr, ExprKind, HirId, HirIdSet, Local, Node, PatKind, QPath, TyKind};
+use rustc_hir::{Expr, ExprKind, HirId, HirIdSet, Local, MatchSource, Node, PatKind, QPath, TyKind};
 use rustc_lint::{LateContext, LintContext};
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty;
@@ -41,6 +41,10 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, local: &'tcx Local<'_>) {
                 );
             }
         } else {
+            if let ExprKind::Match(_, _, MatchSource::AwaitDesugar) = init.kind {
+                return
+            }
+
             span_lint_and_then(
                 cx,
                 LET_UNIT_VALUE,
@@ -48,12 +52,13 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, local: &'tcx Local<'_>) {
                 "this let-binding has unit value",
                 |diag| {
                     if let Some(expr) = &local.init {
-                        let snip = snippet_with_macro_callsite(cx, expr.span, "()");
+                        let mut app = Applicability::MachineApplicable;
+                        let snip = snippet_with_context(cx, expr.span, local.span.ctxt(), "()", &mut app).0;
                         diag.span_suggestion(
                             local.span,
                             "omit the `let` binding",
                             format!("{snip};"),
-                            Applicability::MachineApplicable, // snippet
+                            app,
                         );
                     }
                 },
diff --git a/src/tools/clippy/clippy_lints/src/unnecessary_box_returns.rs b/src/tools/clippy/clippy_lints/src/unnecessary_box_returns.rs
new file mode 100644
index 000000000..912bcda63
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/unnecessary_box_returns.rs
@@ -0,0 +1,120 @@
+use clippy_utils::diagnostics::span_lint_and_then;
+use rustc_errors::Applicability;
+use rustc_hir::{def_id::LocalDefId, FnDecl, FnRetTy, ImplItemKind, Item, ItemKind, Node, TraitItem, TraitItemKind};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::Symbol;
+
+declare_clippy_lint! {
+    /// ### What it does
+    ///
+    /// Checks for a return type containing a `Box<T>` where `T` implements `Sized`
+    ///
+    /// ### Why is this bad?
+    ///
+    /// It's better to just return `T` in these cases. The caller may not need
+    /// the value to be boxed, and it's expensive to free the memory once the
+    /// `Box<T>` been dropped.
+    ///
+    /// ### Example
+    /// ```rust
+    /// fn foo() -> Box<String> {
+    ///     Box::new(String::from("Hello, world!"))
+    /// }
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// fn foo() -> String {
+    ///     String::from("Hello, world!")
+    /// }
+    /// ```
+    #[clippy::version = "1.70.0"]
+    pub UNNECESSARY_BOX_RETURNS,
+    pedantic,
+    "Needlessly returning a Box"
+}
+
+pub struct UnnecessaryBoxReturns {
+    avoid_breaking_exported_api: bool,
+}
+
+impl_lint_pass!(UnnecessaryBoxReturns => [UNNECESSARY_BOX_RETURNS]);
+
+impl UnnecessaryBoxReturns {
+    pub fn new(avoid_breaking_exported_api: bool) -> Self {
+        Self {
+            avoid_breaking_exported_api,
+        }
+    }
+
+    fn check_fn_item(&mut self, cx: &LateContext<'_>, decl: &FnDecl<'_>, def_id: LocalDefId, name: Symbol) {
+        // we don't want to tell someone to break an exported function if they ask us not to
+        if self.avoid_breaking_exported_api && cx.effective_visibilities.is_exported(def_id) {
+            return;
+        }
+
+        // functions which contain the word "box" are exempt from this lint
+        if name.as_str().contains("box") {
+            return;
+        }
+
+        let FnRetTy::Return(return_ty_hir) = &decl.output else { return };
+
+        let return_ty = cx
+            .tcx
+            .erase_late_bound_regions(cx.tcx.fn_sig(def_id).skip_binder())
+            .output();
+
+        if !return_ty.is_box() {
+            return;
+        }
+
+        let boxed_ty = return_ty.boxed_ty();
+
+        // it's sometimes useful to return Box<T> if T is unsized, so don't lint those
+        if boxed_ty.is_sized(cx.tcx, cx.param_env) {
+            span_lint_and_then(
+                cx,
+                UNNECESSARY_BOX_RETURNS,
+                return_ty_hir.span,
+                format!("boxed return of the sized type `{boxed_ty}`").as_str(),
+                |diagnostic| {
+                    diagnostic.span_suggestion(
+                        return_ty_hir.span,
+                        "try",
+                        boxed_ty.to_string(),
+                        // the return value and function callers also needs to
+                        // be changed, so this can't be MachineApplicable
+                        Applicability::Unspecified,
+                    );
+                    diagnostic.help("changing this also requires a change to the return expressions in this function");
+                },
+            );
+        }
+    }
+}
+
+impl LateLintPass<'_> for UnnecessaryBoxReturns {
+    fn check_trait_item(&mut self, cx: &LateContext<'_>, item: &TraitItem<'_>) {
+        let TraitItemKind::Fn(signature, _) = &item.kind else { return };
+        self.check_fn_item(cx, signature.decl, item.owner_id.def_id, item.ident.name);
+    }
+
+    fn check_impl_item(&mut self, cx: &LateContext<'_>, item: &rustc_hir::ImplItem<'_>) {
+        // Ignore implementations of traits, because the lint should be on the
+        // trait, not on the implmentation of it.
+        let Node::Item(parent) = cx.tcx.hir().get_parent(item.hir_id()) else { return };
+        let ItemKind::Impl(parent) = parent.kind else { return };
+        if parent.of_trait.is_some() {
+            return;
+        }
+
+        let ImplItemKind::Fn(signature, ..) = &item.kind else { return };
+        self.check_fn_item(cx, signature.decl, item.owner_id.def_id, item.ident.name);
+    }
+
+    fn check_item(&mut self, cx: &LateContext<'_>, item: &Item<'_>) {
+        let ItemKind::Fn(signature, ..) = &item.kind else { return };
+        self.check_fn_item(cx, signature.decl, item.owner_id.def_id, item.ident.name);
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/unnecessary_struct_initialization.rs b/src/tools/clippy/clippy_lints/src/unnecessary_struct_initialization.rs
new file mode 100644
index 000000000..084b03198
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/unnecessary_struct_initialization.rs
@@ -0,0 +1,88 @@
+use clippy_utils::{diagnostics::span_lint_and_sugg, get_parent_expr, path_to_local, source::snippet, ty::is_copy};
+use rustc_hir::{BindingAnnotation, Expr, ExprKind, Node, PatKind, UnOp};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks for initialization of a `struct` by copying a base without setting
+    /// any field.
+    ///
+    /// ### Why is this bad?
+    /// Readability suffers from unnecessary struct building.
+    ///
+    /// ### Example
+    /// ```rust
+    /// struct S { s: String }
+    ///
+    /// let a = S { s: String::from("Hello, world!") };
+    /// let b = S { ..a };
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// struct S { s: String }
+    ///
+    /// let a = S { s: String::from("Hello, world!") };
+    /// let b = a;
+    /// ```
+    ///
+    /// ### Known Problems
+    /// Has false positives when the base is a place expression that cannot be
+    /// moved out of, see [#10547](https://github.com/rust-lang/rust-clippy/issues/10547).
+    #[clippy::version = "1.70.0"]
+    pub UNNECESSARY_STRUCT_INITIALIZATION,
+    nursery,
+    "struct built from a base that can be written mode concisely"
+}
+declare_lint_pass!(UnnecessaryStruct => [UNNECESSARY_STRUCT_INITIALIZATION]);
+
+impl LateLintPass<'_> for UnnecessaryStruct {
+    fn check_expr(&mut self, cx: &LateContext<'_>, expr: &Expr<'_>) {
+        if let ExprKind::Struct(_, &[], Some(base)) = expr.kind {
+            if let Some(parent) = get_parent_expr(cx, expr) &&
+                let parent_ty = cx.typeck_results().expr_ty_adjusted(parent) &&
+                parent_ty.is_any_ptr()
+            {
+                if is_copy(cx, cx.typeck_results().expr_ty(expr)) && path_to_local(base).is_some() {
+                    // When the type implements `Copy`, a reference to the new struct works on the
+                    // copy. Using the original would borrow it.
+                    return;
+                }
+
+                if parent_ty.is_mutable_ptr() && !is_mutable(cx, base) {
+                    // The original can be used in a mutable reference context only if it is mutable.
+                    return;
+                }
+            }
+
+            // TODO: do not propose to replace *XX if XX is not Copy
+            if let ExprKind::Unary(UnOp::Deref, target) = base.kind &&
+                matches!(target.kind, ExprKind::Path(..)) &&
+                !is_copy(cx, cx.typeck_results().expr_ty(expr))
+            {
+                // `*base` cannot be used instead of the struct in the general case if it is not Copy.
+                return;
+            }
+
+            span_lint_and_sugg(
+                cx,
+                UNNECESSARY_STRUCT_INITIALIZATION,
+                expr.span,
+                "unnecessary struct building",
+                "replace with",
+                snippet(cx, base.span, "..").into_owned(),
+                rustc_errors::Applicability::MachineApplicable,
+            );
+        }
+    }
+}
+
+fn is_mutable(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
+    if let Some(hir_id) = path_to_local(expr) &&
+        let Node::Pat(pat) = cx.tcx.hir().get(hir_id)
+    {
+        matches!(pat.kind, PatKind::Binding(BindingAnnotation::MUT, ..))
+    } else {
+        true
+    }
+}
diff --git a/src/tools/clippy/clippy_lints/src/use_self.rs b/src/tools/clippy/clippy_lints/src/use_self.rs
index e7c540006..5a0298745 100644
--- a/src/tools/clippy/clippy_lints/src/use_self.rs
+++ b/src/tools/clippy/clippy_lints/src/use_self.rs
@@ -10,8 +10,8 @@ use rustc_hir::{
     def::{CtorOf, DefKind, Res},
     def_id::LocalDefId,
     intravisit::{walk_inf, walk_ty, Visitor},
-    Expr, ExprKind, FnRetTy, FnSig, GenericArg, HirId, Impl, ImplItemKind, Item, ItemKind, Pat, PatKind, Path, QPath,
-    TyKind,
+    Expr, ExprKind, FnRetTy, FnSig, GenericArg, GenericArgsParentheses, GenericParam, GenericParamKind, HirId, Impl,
+    ImplItemKind, Item, ItemKind, Pat, PatKind, Path, QPath, Ty, TyKind,
 };
 use rustc_hir_analysis::hir_ty_to_ty;
 use rustc_lint::{LateContext, LateLintPass};
@@ -96,19 +96,27 @@ impl<'tcx> LateLintPass<'tcx> for UseSelf {
         // avoid linting on nested items, we push `StackItem::NoCheck` on the stack to signal, that
         // we're in an `impl` or nested item, that we don't want to lint
         let stack_item = if_chain! {
-            if let ItemKind::Impl(Impl { self_ty, .. }) = item.kind;
+            if let ItemKind::Impl(Impl { self_ty, generics,.. }) = item.kind;
             if let TyKind::Path(QPath::Resolved(_, item_path)) = self_ty.kind;
             let parameters = &item_path.segments.last().expect(SEGMENTS_MSG).args;
             if parameters.as_ref().map_or(true, |params| {
-                !params.parenthesized && !params.args.iter().any(|arg| matches!(arg, GenericArg::Lifetime(_)))
+                params.parenthesized  == GenericArgsParentheses::No
+                    && !params.args.iter().any(|arg| matches!(arg, GenericArg::Lifetime(_)))
             });
             if !item.span.from_expansion();
             if !is_from_proc_macro(cx, item); // expensive, should be last check
             then {
+                // Self cannot be used inside const generic parameters
+                let types_to_skip = generics.params.iter().filter_map(|param| {
+                    match param {
+                        GenericParam { kind: GenericParamKind::Const { ty: Ty { hir_id, ..}, ..}, ..} => Some(*hir_id),
+                        _ => None,
+                    }
+                }).chain(std::iter::once(self_ty.hir_id)).collect();
                 StackItem::Check {
                     impl_id: item.owner_id.def_id,
                     in_body: 0,
-                    types_to_skip: std::iter::once(self_ty.hir_id).collect(),
+                    types_to_skip,
                 }
             } else {
                 StackItem::NoCheck
diff --git a/src/tools/clippy/clippy_lints/src/useless_conversion.rs b/src/tools/clippy/clippy_lints/src/useless_conversion.rs
index fede625f7..ddbe6b2c7 100644
--- a/src/tools/clippy/clippy_lints/src/useless_conversion.rs
+++ b/src/tools/clippy/clippy_lints/src/useless_conversion.rs
@@ -1,5 +1,5 @@
 use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_sugg};
-use clippy_utils::source::{snippet, snippet_with_macro_callsite};
+use clippy_utils::source::{snippet, snippet_with_context};
 use clippy_utils::sugg::Sugg;
 use clippy_utils::ty::{is_copy, is_type_diagnostic_item, same_type_and_consts};
 use clippy_utils::{get_parent_expr, is_trait_method, match_def_path, path_to_local, paths};
@@ -68,15 +68,16 @@ impl<'tcx> LateLintPass<'tcx> for UselessConversion {
                     let a = cx.typeck_results().expr_ty(e);
                     let b = cx.typeck_results().expr_ty(recv);
                     if same_type_and_consts(a, b) {
-                        let sugg = snippet_with_macro_callsite(cx, recv.span, "<expr>").to_string();
+                        let mut app = Applicability::MachineApplicable;
+                        let sugg = snippet_with_context(cx, recv.span, e.span.ctxt(), "<expr>", &mut app).0;
                         span_lint_and_sugg(
                             cx,
                             USELESS_CONVERSION,
                             e.span,
                             &format!("useless conversion to the same type: `{b}`"),
                             "consider removing `.into()`",
-                            sugg,
-                            Applicability::MachineApplicable, // snippet
+                            sugg.into_owned(),
+                            app,
                         );
                     }
                 }
@@ -165,7 +166,8 @@ impl<'tcx> LateLintPass<'tcx> for UselessConversion {
                             if same_type_and_consts(a, b);
 
                             then {
-                                let sugg = Sugg::hir_with_macro_callsite(cx, arg, "<expr>").maybe_par();
+                                let mut app = Applicability::MachineApplicable;
+                                let sugg = Sugg::hir_with_context(cx, arg, e.span.ctxt(), "<expr>", &mut app).maybe_par();
                                 let sugg_msg =
                                     format!("consider removing `{}()`", snippet(cx, path.span, "From::from"));
                                 span_lint_and_sugg(
@@ -175,7 +177,7 @@ impl<'tcx> LateLintPass<'tcx> for UselessConversion {
                                     &format!("useless conversion to the same type: `{b}`"),
                                     &sugg_msg,
                                     sugg.to_string(),
-                                    Applicability::MachineApplicable, // snippet
+                                    app,
                                 );
                             }
                         }
diff --git a/src/tools/clippy/clippy_lints/src/utils/author.rs b/src/tools/clippy/clippy_lints/src/utils/author.rs
index c37e5bb67..bc4adf159 100644
--- a/src/tools/clippy/clippy_lints/src/utils/author.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/author.rs
@@ -395,11 +395,6 @@ impl<'a, 'tcx> PrintVisitor<'a, 'tcx> {
                 }
                 self.expr(field!(let_expr.init));
             },
-            ExprKind::Box(inner) => {
-                bind!(self, inner);
-                kind!("Box({inner})");
-                self.expr(inner);
-            },
             ExprKind::Array(elements) => {
                 bind!(self, elements);
                 kind!("Array({elements})");
@@ -588,7 +583,7 @@ impl<'a, 'tcx> PrintVisitor<'a, 'tcx> {
                     },
                 }
             },
-            ExprKind::Err(_) => kind!("Err"),
+            ExprKind::Err(_) => kind!("Err(_)"),
             ExprKind::DropTemps(expr) => {
                 bind!(self, expr);
                 kind!("DropTemps({expr})");
diff --git a/src/tools/clippy/clippy_lints/src/utils/conf.rs b/src/tools/clippy/clippy_lints/src/utils/conf.rs
index 1c7f3e96d..896a01af3 100644
--- a/src/tools/clippy/clippy_lints/src/utils/conf.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/conf.rs
@@ -249,7 +249,7 @@ define_Conf! {
     /// arithmetic-side-effects-allowed-unary = ["SomeType", "AnotherType"]
     /// ```
     (arithmetic_side_effects_allowed_unary: rustc_data_structures::fx::FxHashSet<String> = <_>::default()),
-    /// Lint: ENUM_VARIANT_NAMES, LARGE_TYPES_PASSED_BY_VALUE, TRIVIALLY_COPY_PASS_BY_REF, UNNECESSARY_WRAPS, UNUSED_SELF, UPPER_CASE_ACRONYMS, WRONG_SELF_CONVENTION, BOX_COLLECTION, REDUNDANT_ALLOCATION, RC_BUFFER, VEC_BOX, OPTION_OPTION, LINKEDLIST, RC_MUTEX.
+    /// Lint: ENUM_VARIANT_NAMES, LARGE_TYPES_PASSED_BY_VALUE, TRIVIALLY_COPY_PASS_BY_REF, UNNECESSARY_WRAPS, UNUSED_SELF, UPPER_CASE_ACRONYMS, WRONG_SELF_CONVENTION, BOX_COLLECTION, REDUNDANT_ALLOCATION, RC_BUFFER, VEC_BOX, OPTION_OPTION, LINKEDLIST, RC_MUTEX, UNNECESSARY_BOX_RETURNS.
     ///
     /// Suppress lints whenever the suggested change would cause breakage for other crates.
     (avoid_breaking_exported_api: bool = true),
@@ -275,13 +275,13 @@ define_Conf! {
     ///
     /// The list of disallowed names to lint about. NB: `bar` is not here since it has legitimate uses. The value
     /// `".."` can be used as part of the list to indicate, that the configured values should be appended to the
-    /// default configuration of Clippy. By default any configuration will replace the default value.
+    /// default configuration of Clippy. By default, any configuration will replace the default value.
     (disallowed_names: Vec<String> = super::DEFAULT_DISALLOWED_NAMES.iter().map(ToString::to_string).collect()),
     /// Lint: DOC_MARKDOWN.
     ///
     /// The list of words this lint should not consider as identifiers needing ticks. The value
     /// `".."` can be used as part of the list to indicate, that the configured values should be appended to the
-    /// default configuration of Clippy. By default any configuraction will replace the default value. For example:
+    /// default configuration of Clippy. By default, any configuration will replace the default value. For example:
     /// * `doc-valid-idents = ["ClipPy"]` would replace the default list with `["ClipPy"]`.
     /// * `doc-valid-idents = ["ClipPy", ".."]` would append `ClipPy` to the default list.
     ///
@@ -390,7 +390,7 @@ define_Conf! {
     /// Enforce the named macros always use the braces specified.
     ///
     /// A `MacroMatcher` can be added like so `{ name = "macro_name", brace = "(" }`. If the macro
-    /// is could be used with a full path two `MacroMatcher`s have to be added one with the full path
+    /// could be used with a full path two `MacroMatcher`s have to be added one with the full path
     /// `crate_name::macro_name` and one with just the macro name.
     (standard_macro_braces: Vec<crate::nonstandard_macro_braces::MacroMatcher> = Vec::new()),
     /// Lint: MISSING_ENFORCED_IMPORT_RENAMES.
@@ -408,7 +408,7 @@ define_Conf! {
     /// Lint: INDEX_REFUTABLE_SLICE.
     ///
     /// When Clippy suggests using a slice pattern, this is the maximum number of elements allowed in
-    /// the slice pattern that is suggested. If more elements would be necessary, the lint is suppressed.
+    /// the slice pattern that is suggested. If more elements are necessary, the lint is suppressed.
     /// For example, `[_, _, _, e, ..]` is a slice pattern with 4 elements.
     (max_suggested_slice_pattern_length: u64 = 3),
     /// Lint: AWAIT_HOLDING_INVALID_TYPE.
@@ -437,7 +437,7 @@ define_Conf! {
     ///
     /// The maximum size of the `Err`-variant in a `Result` returned from a function
     (large_error_threshold: u64 = 128),
-    /// Lint: MUTABLE_KEY_TYPE.
+    /// Lint: MUTABLE_KEY_TYPE, IFS_SAME_COND.
     ///
     /// A list of paths to types that should be treated like `Arc`, i.e. ignored but
     /// for the generic parameters for determining interior mutability
@@ -459,6 +459,10 @@ define_Conf! {
     /// Whether to **only** check for missing documentation in items visible within the current
     /// crate. For example, `pub(crate)` items.
     (missing_docs_in_crate_items: bool = false),
+    /// Lint: LARGE_FUTURES.
+    ///
+    /// The maximum byte size a `Future` can have, before it triggers the `clippy::large_futures` lint
+    (future_size_threshold: u64 = 16 * 1024),
 }
 
 /// Search for the configuration file.
@@ -466,7 +470,7 @@ define_Conf! {
 /// # Errors
 ///
 /// Returns any unexpected filesystem error encountered when searching for the config file
-pub fn lookup_conf_file() -> io::Result<Option<PathBuf>> {
+pub fn lookup_conf_file() -> io::Result<(Option<PathBuf>, Vec<String>)> {
     /// Possible filename to search for.
     const CONFIG_FILE_NAMES: [&str; 2] = [".clippy.toml", "clippy.toml"];
 
@@ -474,9 +478,11 @@ pub fn lookup_conf_file() -> io::Result<Option<PathBuf>> {
     // If neither of those exist, use ".".
     let mut current = env::var_os("CLIPPY_CONF_DIR")
         .or_else(|| env::var_os("CARGO_MANIFEST_DIR"))
-        .map_or_else(|| PathBuf::from("."), PathBuf::from);
+        .map_or_else(|| PathBuf::from("."), PathBuf::from)
+        .canonicalize()?;
 
     let mut found_config: Option<PathBuf> = None;
+    let mut warnings = vec![];
 
     loop {
         for config_file_name in &CONFIG_FILE_NAMES {
@@ -487,12 +493,12 @@ pub fn lookup_conf_file() -> io::Result<Option<PathBuf>> {
                     Ok(md) if md.is_dir() => {},
                     Ok(_) => {
                         // warn if we happen to find two config files #8323
-                        if let Some(ref found_config_) = found_config {
-                            eprintln!(
-                                "Using config file `{}`\nWarning: `{}` will be ignored.",
-                                found_config_.display(),
-                                config_file.display(),
-                            );
+                        if let Some(ref found_config) = found_config {
+                            warnings.push(format!(
+                                "using config file `{}`, `{}` will be ignored",
+                                found_config.display(),
+                                config_file.display()
+                            ));
                         } else {
                             found_config = Some(config_file);
                         }
@@ -502,12 +508,12 @@ pub fn lookup_conf_file() -> io::Result<Option<PathBuf>> {
         }
 
         if found_config.is_some() {
-            return Ok(found_config);
+            return Ok((found_config, warnings));
         }
 
         // If the current directory has no parent, we're done searching.
         if !current.pop() {
-            return Ok(None);
+            return Ok((None, warnings));
         }
     }
 }
diff --git a/src/tools/clippy/clippy_lints/src/utils/format_args_collector.rs b/src/tools/clippy/clippy_lints/src/utils/format_args_collector.rs
new file mode 100644
index 000000000..09fcb82c3
--- /dev/null
+++ b/src/tools/clippy/clippy_lints/src/utils/format_args_collector.rs
@@ -0,0 +1,98 @@
+use clippy_utils::macros::collect_ast_format_args;
+use clippy_utils::source::snippet_opt;
+use itertools::Itertools;
+use rustc_ast::{Expr, ExprKind, FormatArgs};
+use rustc_lexer::{tokenize, TokenKind};
+use rustc_lint::{EarlyContext, EarlyLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::hygiene;
+use std::iter::once;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Collects [`rustc_ast::FormatArgs`] so that future late passes can call
+    /// [`clippy_utils::macros::find_format_args`]
+    pub FORMAT_ARGS_COLLECTOR,
+    internal_warn,
+    "collects `format_args` AST nodes for use in later lints"
+}
+
+declare_lint_pass!(FormatArgsCollector => [FORMAT_ARGS_COLLECTOR]);
+
+impl EarlyLintPass for FormatArgsCollector {
+    fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
+        if let ExprKind::FormatArgs(args) = &expr.kind {
+            if has_span_from_proc_macro(cx, args) {
+                return;
+            }
+
+            collect_ast_format_args(expr.span, args);
+        }
+    }
+}
+
+/// Detects if the format string or an argument has its span set by a proc macro to something inside
+/// a macro callsite, e.g.
+///
+/// ```ignore
+/// println!(some_proc_macro!("input {}"), a);
+/// ```
+///
+/// Where `some_proc_macro` expands to
+///
+/// ```ignore
+/// println!("output {}", a);
+/// ```
+///
+/// But with the span of `"output {}"` set to the macro input
+///
+/// ```ignore
+/// println!(some_proc_macro!("input {}"), a);
+/// //                        ^^^^^^^^^^
+/// ```
+fn has_span_from_proc_macro(cx: &EarlyContext<'_>, args: &FormatArgs) -> bool {
+    let ctxt = args.span.ctxt();
+
+    // `format!("{} {} {c}", "one", "two", c = "three")`
+    //                       ^^^^^  ^^^^^      ^^^^^^^
+    let argument_span = args
+        .arguments
+        .explicit_args()
+        .iter()
+        .map(|argument| hygiene::walk_chain(argument.expr.span, ctxt));
+
+    // `format!("{} {} {c}", "one", "two", c = "three")`
+    //                     ^^     ^^     ^^^^^^
+    let between_spans = once(args.span)
+        .chain(argument_span)
+        .tuple_windows()
+        .map(|(start, end)| start.between(end));
+
+    for between_span in between_spans {
+        let mut seen_comma = false;
+
+        let Some(snippet) = snippet_opt(cx, between_span) else { return true };
+        for token in tokenize(&snippet) {
+            match token.kind {
+                TokenKind::LineComment { .. } | TokenKind::BlockComment { .. } | TokenKind::Whitespace => {},
+                TokenKind::Comma if !seen_comma => seen_comma = true,
+                // named arguments, `start_val, name = end_val`
+                //                            ^^^^^^^^^ between_span
+                TokenKind::Ident | TokenKind::Eq if seen_comma => {},
+                // An unexpected token usually indicates that we crossed a macro boundary
+                //
+                // `println!(some_proc_macro!("input {}"), a)`
+                //                                      ^^^ between_span
+                // `println!("{}", val!(x))`
+                //               ^^^^^^^ between_span
+                _ => return true,
+            }
+        }
+
+        if !seen_comma {
+            return true;
+        }
+    }
+
+    false
+}
diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/interning_defined_symbol.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/interning_defined_symbol.rs
index 688a8b865..f8978e30a 100644
--- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/interning_defined_symbol.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/interning_defined_symbol.rs
@@ -11,7 +11,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::{BinOpKind, Expr, ExprKind, UnOp};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::mir::interpret::ConstValue;
-use rustc_middle::ty::{self};
+use rustc_middle::ty;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::symbol::Symbol;
 
diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs
index b1b5164ff..3d0d4a525 100644
--- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs
@@ -26,7 +26,7 @@ use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::symbol::Ident;
 use rustc_span::{sym, Loc, Span, Symbol};
 use serde::{ser::SerializeStruct, Serialize, Serializer};
-use std::collections::BinaryHeap;
+use std::collections::{BTreeSet, BinaryHeap};
 use std::fmt;
 use std::fmt::Write as _;
 use std::fs::{self, OpenOptions};
@@ -264,6 +264,9 @@ struct LintMetadata {
     /// This field is only used in the output and will only be
     /// mapped shortly before the actual output.
     applicability: Option<ApplicabilityInfo>,
+    /// All the past names of lints which have been renamed.
+    #[serde(skip_serializing_if = "BTreeSet::is_empty")]
+    former_ids: BTreeSet<String>,
 }
 
 impl LintMetadata {
@@ -283,6 +286,7 @@ impl LintMetadata {
             version,
             docs,
             applicability: None,
+            former_ids: BTreeSet::new(),
         }
     }
 }
@@ -901,6 +905,7 @@ fn collect_renames(lints: &mut Vec<LintMetadata>) {
                         if name == lint_name;
                         if let Some(past_name) = k.strip_prefix(CLIPPY_LINT_GROUP_PREFIX);
                         then {
+                            lint.former_ids.insert(past_name.to_owned());
                             writeln!(collected, "* `{past_name}`").unwrap();
                             names.push(past_name.to_string());
                         }
diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/unnecessary_def_path.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/unnecessary_def_path.rs
index b59ef4086..14ed1368e 100644
--- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/unnecessary_def_path.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/unnecessary_def_path.rs
@@ -11,7 +11,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::{Expr, ExprKind, Local, Mutability, Node};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::mir::interpret::{Allocation, ConstValue, GlobalAlloc};
-use rustc_middle::ty::{self, DefIdTree, Ty};
+use rustc_middle::ty::{self, Ty};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::symbol::Symbol;
 use rustc_span::Span;
diff --git a/src/tools/clippy/clippy_lints/src/utils/mod.rs b/src/tools/clippy/clippy_lints/src/utils/mod.rs
index 787e9fd98..dc647af26 100644
--- a/src/tools/clippy/clippy_lints/src/utils/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/mod.rs
@@ -1,5 +1,6 @@
 pub mod author;
 pub mod conf;
 pub mod dump_hir;
+pub mod format_args_collector;
 #[cfg(feature = "internal")]
 pub mod internal_lints;
diff --git a/src/tools/clippy/clippy_lints/src/wildcard_imports.rs b/src/tools/clippy/clippy_lints/src/wildcard_imports.rs
index e4d1ee195..36f910c98 100644
--- a/src/tools/clippy/clippy_lints/src/wildcard_imports.rs
+++ b/src/tools/clippy/clippy_lints/src/wildcard_imports.rs
@@ -155,19 +155,13 @@ impl LateLintPass<'_> for WildcardImports {
                     )
                 };
 
-                let imports_string = if used_imports.len() == 1 {
-                    used_imports.iter().next().unwrap().to_string()
+                let mut imports = used_imports.items().map(ToString::to_string).into_sorted_stable_ord(false);
+                let imports_string = if imports.len() == 1 {
+                    imports.pop().unwrap()
+                } else if braced_glob {
+                    imports.join(", ")
                 } else {
-                    let mut imports = used_imports
-                        .iter()
-                        .map(ToString::to_string)
-                        .collect::<Vec<_>>();
-                    imports.sort();
-                    if braced_glob {
-                        imports.join(", ")
-                    } else {
-                        format!("{{{}}}", imports.join(", "))
-                    }
+                    format!("{{{}}}", imports.join(", "))
                 };
 
                 let sugg = if braced_glob {
diff --git a/src/tools/clippy/clippy_lints/src/write.rs b/src/tools/clippy/clippy_lints/src/write.rs
index df3350388..d7c94b909 100644
--- a/src/tools/clippy/clippy_lints/src/write.rs
+++ b/src/tools/clippy/clippy_lints/src/write.rs
@@ -1,10 +1,11 @@
 use clippy_utils::diagnostics::{span_lint, span_lint_and_then};
-use clippy_utils::macros::{root_macro_call_first_node, FormatArgsExpn, MacroCall};
+use clippy_utils::macros::{find_format_args, format_arg_removal_span, root_macro_call_first_node, MacroCall};
 use clippy_utils::source::{expand_past_previous_comma, snippet_opt};
 use clippy_utils::{is_in_cfg_test, is_in_test_function};
-use rustc_ast::LitKind;
+use rustc_ast::token::LitKind;
+use rustc_ast::{FormatArgPosition, FormatArgs, FormatArgsPiece, FormatOptions, FormatPlaceholder, FormatTrait};
 use rustc_errors::Applicability;
-use rustc_hir::{Expr, ExprKind, HirIdMap, Impl, Item, ItemKind};
+use rustc_hir::{Expr, Impl, Item, ItemKind};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::{sym, BytePos};
@@ -297,34 +298,40 @@ impl<'tcx> LateLintPass<'tcx> for Write {
             _ => return,
         }
 
-        let Some(format_args) = FormatArgsExpn::find_nested(cx, expr, macro_call.expn) else { return };
-
-        // ignore `writeln!(w)` and `write!(v, some_macro!())`
-        if format_args.format_string.span.from_expansion() {
-            return;
-        }
+        find_format_args(cx, expr, macro_call.expn, |format_args| {
+            // ignore `writeln!(w)` and `write!(v, some_macro!())`
+            if format_args.span.from_expansion() {
+                return;
+            }
 
-        match diag_name {
-            sym::print_macro | sym::eprint_macro | sym::write_macro => {
-                check_newline(cx, &format_args, &macro_call, name);
-            },
-            sym::println_macro | sym::eprintln_macro | sym::writeln_macro => {
-                check_empty_string(cx, &format_args, &macro_call, name);
-            },
-            _ => {},
-        }
+            match diag_name {
+                sym::print_macro | sym::eprint_macro | sym::write_macro => {
+                    check_newline(cx, format_args, &macro_call, name);
+                },
+                sym::println_macro | sym::eprintln_macro | sym::writeln_macro => {
+                    check_empty_string(cx, format_args, &macro_call, name);
+                },
+                _ => {},
+            }
 
-        check_literal(cx, &format_args, name);
+            check_literal(cx, format_args, name);
 
-        if !self.in_debug_impl {
-            for arg in &format_args.args {
-                if arg.format.r#trait == sym::Debug {
-                    span_lint(cx, USE_DEBUG, arg.span, "use of `Debug`-based formatting");
+            if !self.in_debug_impl {
+                for piece in &format_args.template {
+                    if let &FormatArgsPiece::Placeholder(FormatPlaceholder {
+                        span: Some(span),
+                        format_trait: FormatTrait::Debug,
+                        ..
+                    }) = piece
+                    {
+                        span_lint(cx, USE_DEBUG, span, "use of `Debug`-based formatting");
+                    }
                 }
             }
-        }
+        });
     }
 }
+
 fn is_debug_impl(cx: &LateContext<'_>, item: &Item<'_>) -> bool {
     if let ItemKind::Impl(Impl { of_trait: Some(trait_ref), .. }) = &item.kind
         && let Some(trait_id) = trait_ref.trait_def_id()
@@ -335,16 +342,18 @@ fn is_debug_impl(cx: &LateContext<'_>, item: &Item<'_>) -> bool {
     }
 }
 
-fn check_newline(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, macro_call: &MacroCall, name: &str) {
-    let format_string_parts = &format_args.format_string.parts;
-    let mut format_string_span = format_args.format_string.span;
-
-    let Some(last) = format_string_parts.last() else { return };
+fn check_newline(cx: &LateContext<'_>, format_args: &FormatArgs, macro_call: &MacroCall, name: &str) {
+    let Some(FormatArgsPiece::Literal(last)) = format_args.template.last() else { return };
 
     let count_vertical_whitespace = || {
-        format_string_parts
+        format_args
+            .template
             .iter()
-            .flat_map(|part| part.as_str().chars())
+            .filter_map(|piece| match piece {
+                FormatArgsPiece::Literal(literal) => Some(literal),
+                FormatArgsPiece::Placeholder(_) => None,
+            })
+            .flat_map(|literal| literal.as_str().chars())
             .filter(|ch| matches!(ch, '\r' | '\n'))
             .count()
     };
@@ -352,10 +361,9 @@ fn check_newline(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, macro_c
     if last.as_str().ends_with('\n')
         // ignore format strings with other internal vertical whitespace
         && count_vertical_whitespace() == 1
-
-        // ignore trailing arguments: `print!("Issue\n{}", 1265);`
-        && format_string_parts.len() > format_args.args.len()
     {
+        let mut format_string_span = format_args.span;
+
         let lint = if name == "write" {
             format_string_span = expand_past_previous_comma(cx, format_string_span);
 
@@ -373,7 +381,7 @@ fn check_newline(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, macro_c
                 let name_span = cx.sess().source_map().span_until_char(macro_call.span, '!');
                 let Some(format_snippet) = snippet_opt(cx, format_string_span) else { return };
 
-                if format_string_parts.len() == 1 && last.as_str() == "\n" {
+                if format_args.template.len() == 1 && last.as_str() == "\n" {
                     // print!("\n"), write!(f, "\n")
 
                     diag.multipart_suggestion(
@@ -398,11 +406,12 @@ fn check_newline(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, macro_c
     }
 }
 
-fn check_empty_string(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, macro_call: &MacroCall, name: &str) {
-    if let [part] = &format_args.format_string.parts[..]
-        && let mut span = format_args.format_string.span
-        && part.as_str() == "\n"
+fn check_empty_string(cx: &LateContext<'_>, format_args: &FormatArgs, macro_call: &MacroCall, name: &str) {
+    if let [FormatArgsPiece::Literal(literal)] = &format_args.template[..]
+        && literal.as_str() == "\n"
     {
+        let mut span = format_args.span;
+
         let lint = if name == "writeln" {
             span = expand_past_previous_comma(cx, span);
 
@@ -428,33 +437,49 @@ fn check_empty_string(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, ma
     }
 }
 
-fn check_literal(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, name: &str) {
-    let mut counts = HirIdMap::<usize>::default();
-    for param in format_args.params() {
-        *counts.entry(param.value.hir_id).or_default() += 1;
+fn check_literal(cx: &LateContext<'_>, format_args: &FormatArgs, name: &str) {
+    let arg_index = |argument: &FormatArgPosition| argument.index.unwrap_or_else(|pos| pos);
+
+    let mut counts = vec![0u32; format_args.arguments.all_args().len()];
+    for piece in &format_args.template {
+        if let FormatArgsPiece::Placeholder(placeholder) = piece {
+            counts[arg_index(&placeholder.argument)] += 1;
+        }
     }
 
-    for arg in &format_args.args {
-        let value = arg.param.value;
-
-        if counts[&value.hir_id] == 1
-            && arg.format.is_default()
-            && let ExprKind::Lit(lit) = &value.kind
-            && !value.span.from_expansion()
-            && let Some(value_string) = snippet_opt(cx, value.span)
-        {
-            let (replacement, replace_raw) = match lit.node {
-                LitKind::Str(..) => extract_str_literal(&value_string),
-                LitKind::Char(ch) => (
-                    match ch {
-                        '"' => "\\\"",
-                        '\'' => "'",
-                        _ => &value_string[1..value_string.len() - 1],
+    for piece in &format_args.template {
+        if let FormatArgsPiece::Placeholder(FormatPlaceholder {
+            argument,
+            span: Some(placeholder_span),
+            format_trait: FormatTrait::Display,
+            format_options,
+        }) = piece
+            && *format_options == FormatOptions::default()
+            && let index = arg_index(argument)
+            && counts[index] == 1
+            && let Some(arg) = format_args.arguments.by_index(index)
+            && let rustc_ast::ExprKind::Lit(lit) = &arg.expr.kind
+            && !arg.expr.span.from_expansion()
+            && let Some(value_string) = snippet_opt(cx, arg.expr.span)
+    {
+            let (replacement, replace_raw) = match lit.kind {
+                LitKind::Str | LitKind::StrRaw(_)  => match extract_str_literal(&value_string) {
+                    Some(extracted) => extracted,
+                    None => return,
+                },
+                LitKind::Char => (
+                    match lit.symbol.as_str() {
+                        "\"" => "\\\"",
+                        "\\'" => "'",
+                        _ => match value_string.strip_prefix('\'').and_then(|s| s.strip_suffix('\'')) {
+                            Some(stripped) => stripped,
+                            None => return,
+                        },
                     }
                     .to_string(),
                     false,
                 ),
-                LitKind::Bool(b) => (b.to_string(), false),
+                LitKind::Bool => (lit.symbol.to_string(), false),
                 _ => continue,
             };
 
@@ -464,7 +489,9 @@ fn check_literal(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, name: &
                 PRINT_LITERAL
             };
 
-            let format_string_is_raw = format_args.format_string.style.is_some();
+            let Some(format_string_snippet) = snippet_opt(cx, format_args.span) else { continue };
+            let format_string_is_raw = format_string_snippet.starts_with('r');
+
             let replacement = match (format_string_is_raw, replace_raw) {
                 (false, false) => Some(replacement),
                 (false, true) => Some(replacement.replace('"', "\\\"").replace('\\', "\\\\")),
@@ -485,23 +512,24 @@ fn check_literal(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, name: &
             span_lint_and_then(
                 cx,
                 lint,
-                value.span,
+                arg.expr.span,
                 "literal with an empty format string",
                 |diag| {
                     if let Some(replacement) = replacement
                         // `format!("{}", "a")`, `format!("{named}", named = "b")
                         //              ~~~~~                      ~~~~~~~~~~~~~
-                        && let Some(value_span) = format_args.value_with_prev_comma_span(value.hir_id)
+                        && let Some(removal_span) = format_arg_removal_span(format_args, index)
                     {
                         let replacement = replacement.replace('{', "{{").replace('}', "}}");
                         diag.multipart_suggestion(
                             "try this",
-                            vec![(arg.span, replacement), (value_span, String::new())],
+                            vec![(*placeholder_span, replacement), (removal_span, String::new())],
                             Applicability::MachineApplicable,
                         );
                     }
                 },
             );
+
         }
     }
 }
@@ -511,13 +539,13 @@ fn check_literal(cx: &LateContext<'_>, format_args: &FormatArgsExpn<'_>, name: &
 /// `r#"a"#` -> (`a`, true)
 ///
 /// `"b"` -> (`b`, false)
-fn extract_str_literal(literal: &str) -> (String, bool) {
+fn extract_str_literal(literal: &str) -> Option<(String, bool)> {
     let (literal, raw) = match literal.strip_prefix('r') {
         Some(stripped) => (stripped.trim_matches('#'), true),
         None => (literal, false),
     };
 
-    (literal[1..literal.len() - 1].to_string(), raw)
+    Some((literal.strip_prefix('"')?.strip_suffix('"')?.to_string(), raw))
 }
 
 enum UnescapeErr {