Fix ICE in `is_integer_const` when the expression is inside an `AnonConst` body

1 files changed, 2 insertions, 6 deletions

diff --git a/clippy_utils/src/lib.rs b/clippy_utils/src/lib.rs
index 6db221ab0fd..9a9d6a20057 100644
--- a/clippy_utils/src/lib.rs
+++ b/clippy_utils/src/lib.rs
@@ -909,12 +909,8 @@ pub fn is_integer_const(cx: &LateContext<'_>, e: &Expr<'_>, value: u128) -> bool
     if is_integer_literal(e, value) {
         return true;
     }
-    let map = cx.tcx.hir();
-    let parent_item = map.get_parent_item(e.hir_id);
-    if let Some((Constant::Int(v), _)) = map
-        .maybe_body_owned_by(parent_item)
-        .and_then(|body_id| constant(cx, cx.tcx.typeck_body(body_id), e))
-    {
+    let enclosing_body = cx.tcx.hir().local_def_id(cx.tcx.hir().enclosing_body_owner(e.hir_id));
+    if let Some((Constant::Int(v), _)) = constant(cx, cx.tcx.typeck(enclosing_body), e) {
         value == v
     } else {
         false