Fix clippy

Author: reddevilmidzy

src/tools/clippy/clippy_lints/src/utils/author.rs

@@ -322,6 +322,7 @@ impl<'a, 'tcx> PrintVisitor<'a, 'tcx> {
             ConstArgKind::Struct(..) => chain!(self, "let ConstArgKind::Struct(..) = {const_arg}.kind"),
             ConstArgKind::TupleCall(..) => chain!(self, "let ConstArgKind::TupleCall(..) = {const_arg}.kind"),
             ConstArgKind::Tup(..) => chain!(self, "let ConstArgKind::Tup(..) = {const_arg}.kind"),
+            ConstArgKind::Array(..) => chain!(self, "let ConstArgKind::Array(..) = {const_arg}.kind"),
             ConstArgKind::Infer(..) => chain!(self, "let ConstArgKind::Infer(..) = {const_arg}.kind"),
             ConstArgKind::Error(..) => chain!(self, "let ConstArgKind::Error(..) = {const_arg}.kind"),
             ConstArgKind::Literal(..) => chain!(self, "let ConstArgKind::Literal(..) = {const_arg}.kind")

src/tools/clippy/clippy_utils/src/consts.rs

@@ -1140,9 +1140,14 @@ pub fn const_item_rhs_to_expr<'tcx>(tcx: TyCtxt<'tcx>, ct_rhs: ConstItemRhs<'tcx
         ConstItemRhs::Body(body_id) => Some(tcx.hir_body(body_id).value),
         ConstItemRhs::TypeConst(const_arg) => match const_arg.kind {
             ConstArgKind::Anon(anon) => Some(tcx.hir_body(anon.body).value),
-            ConstArgKind::Struct(..) | ConstArgKind::TupleCall(..) | ConstArgKind::Tup(..) | ConstArgKind::Path(_) | ConstArgKind::Error(..) | ConstArgKind::Infer(..) | ConstArgKind::Literal(..) => {
-                None
-            },
+            ConstArgKind::Struct(..)
+            | ConstArgKind::TupleCall(..)
+            | ConstArgKind::Tup(..)
+            | ConstArgKind::Path(_)
+            | ConstArgKind::Error(..)
+            | ConstArgKind::Infer(..)
+            | ConstArgKind::Literal(..)
+            | ConstArgKind::Array(..) => None,
         },
     }
 }

src/tools/clippy/clippy_utils/src/hir_utils.rs

@@ -691,7 +691,12 @@ impl HirEqInterExpr<'_, '_, '_> {
             }
             (ConstArgKind::Literal(kind_l), ConstArgKind::Literal(kind_r)) => {
                 kind_l == kind_r
-            },
+            }
+            (ConstArgKind::Array(l_arr), ConstArgKind::Array(r_arr)) => {
+                l_arr.elems.len() == r_arr.elems.len()
+                && l_arr.elems.iter().zip(r_arr.elems.iter())
+                    .all(|(l_elem, r_elem)| self.eq_const_arg(l_elem, r_elem))
+            }
             // Use explicit match for now since ConstArg is undergoing flux.
             (
                 ConstArgKind::Path(..)
@@ -701,6 +706,7 @@ impl HirEqInterExpr<'_, '_, '_> {
                 | ConstArgKind::Infer(..)
                 | ConstArgKind::Struct(..)
                 | ConstArgKind::Literal(..)
+                | ConstArgKind::Array(..)
                 | ConstArgKind::Error(..),
                 _,
             ) => false,
@@ -1579,6 +1585,11 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
                 for arg in *args {
                     self.hash_const_arg(arg);
                 }
+            }
+            ConstArgKind::Array(array_expr) => {
+                for elem in array_expr.elems {
+                    self.hash_const_arg(elem);
+                }
             },
             ConstArgKind::Infer(..) | ConstArgKind::Error(..) => {},
             ConstArgKind::Literal(lit) => lit.hash(&mut self.s)