From a3690a2d25d564df5b86742a5be3bb0799a27926 Mon Sep 17 00:00:00 2001
From: Samuel Tardieu <sam@rfc1149.net>
Date: Thu, 8 Jan 2026 19:08:01 +0100
Subject: [PATCH] Make Clippy compile with `ConstArgKind::Tup()`

---
 src/tools/clippy/clippy_lints/src/large_include_file.rs | 1 -
 src/tools/clippy/clippy_lints/src/utils/author.rs       | 1 +
 src/tools/clippy/clippy_utils/src/consts.rs             | 1 +
 src/tools/clippy/clippy_utils/src/hir_utils.rs          | 8 ++++++++
 4 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/tools/clippy/clippy_lints/src/large_include_file.rs b/src/tools/clippy/clippy_lints/src/large_include_file.rs
index d77e0beeaf4c..54599499515e 100644
--- a/src/tools/clippy/clippy_lints/src/large_include_file.rs
+++ b/src/tools/clippy/clippy_lints/src/large_include_file.rs
@@ -1,4 +1,3 @@
-use rustc_ast::AttrItemKind;
 use clippy_config::Conf;
 use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::macros::root_macro_call_first_node;
diff --git a/src/tools/clippy/clippy_lints/src/utils/author.rs b/src/tools/clippy/clippy_lints/src/utils/author.rs
index 58b153f06545..acea701b2e83 100644
--- a/src/tools/clippy/clippy_lints/src/utils/author.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/author.rs
@@ -323,6 +323,7 @@ fn const_arg(&self, const_arg: &Binding<&ConstArg<'_>>) {
             ConstArgKind::TupleCall(..) => chain!(self, "let ConstArgKind::TupleCall(..) = {const_arg}.kind"),
             ConstArgKind::Infer(..) => chain!(self, "let ConstArgKind::Infer(..) = {const_arg}.kind"),
             ConstArgKind::Error(..) => chain!(self, "let ConstArgKind::Error(..) = {const_arg}.kind"),
+            ConstArgKind::Tup(..) => chain!(self, "let ConstArgKind::Tup(..) = {const_arg}.kind"),
             ConstArgKind::Literal(..) => chain!(self, "let ConstArgKind::Literal(..) = {const_arg}.kind")
         }
     }
diff --git a/src/tools/clippy/clippy_utils/src/consts.rs b/src/tools/clippy/clippy_utils/src/consts.rs
index 334cc6bb5d55..e4f76cf4ed57 100644
--- a/src/tools/clippy/clippy_utils/src/consts.rs
+++ b/src/tools/clippy/clippy_utils/src/consts.rs
@@ -1141,6 +1141,7 @@ pub fn const_item_rhs_to_expr<'tcx>(tcx: TyCtxt<'tcx>, ct_rhs: ConstItemRhs<'tcx
         ConstItemRhs::TypeConst(const_arg) => match const_arg.kind {
             ConstArgKind::Anon(anon) => Some(tcx.hir_body(anon.body).value),
             ConstArgKind::Struct(..)
+            | ConstArgKind::Tup(..)
             | ConstArgKind::TupleCall(..)
             | ConstArgKind::Path(_)
             | ConstArgKind::Error(..)
diff --git a/src/tools/clippy/clippy_utils/src/hir_utils.rs b/src/tools/clippy/clippy_utils/src/hir_utils.rs
index 73b1cbb21548..82a12fc51c9a 100644
--- a/src/tools/clippy/clippy_utils/src/hir_utils.rs
+++ b/src/tools/clippy/clippy_utils/src/hir_utils.rs
@@ -666,6 +666,8 @@ fn eq_const_arg(&mut self, left: &ConstArg<'_>, right: &ConstArg<'_>) -> bool {
         }
 
         match (&left.kind, &right.kind) {
+            (ConstArgKind::Tup(l_t), ConstArgKind::Tup(r_t)) =>
+                l_t.len() == r_t.len() && l_t.iter().zip(*r_t).all(|(l_c, r_c)| self.eq_const_arg(*l_c, *r_c)),
             (ConstArgKind::Path(l_p), ConstArgKind::Path(r_p)) => self.eq_qpath(l_p, r_p),
             (ConstArgKind::Anon(l_an), ConstArgKind::Anon(r_an)) => self.eq_body(l_an.body, r_an.body),
             (ConstArgKind::Infer(..), ConstArgKind::Infer(..)) => true,
@@ -695,6 +697,7 @@ fn eq_const_arg(&mut self, left: &ConstArg<'_>, right: &ConstArg<'_>) -> bool {
             // Use explicit match for now since ConstArg is undergoing flux.
             (
                 ConstArgKind::Path(..)
+                | ConstArgKind::Tup(..)
                 | ConstArgKind::Anon(..)
                 | ConstArgKind::TupleCall(..)
                 | ConstArgKind::Tup(..)
@@ -1561,6 +1564,11 @@ pub fn hash_body(&mut self, body_id: BodyId) {
 
     fn hash_const_arg(&mut self, const_arg: &ConstArg<'_>) {
         match &const_arg.kind {
+            ConstArgKind::Tup(tup) => {
+                for arg in *tup {
+                    self.hash_const_arg(*arg);
+                }
+            },
             ConstArgKind::Path(path) => self.hash_qpath(path),
             ConstArgKind::Anon(anon) => self.hash_body(anon.body),
             ConstArgKind::Struct(path, inits) => {