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path: root/compiler/rustc_const_eval/src/interpret/validity.rs
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-rw-r--r--compiler/rustc_const_eval/src/interpret/validity.rs4
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs
index 8e18b243906..832183b42dc 100644
--- a/compiler/rustc_const_eval/src/interpret/validity.rs
+++ b/compiler/rustc_const_eval/src/interpret/validity.rs
@@ -342,7 +342,9 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> {
                 match layout.variants {
                     Variants::Single { index } => {
                         // Inside a variant
-                        PathElem::Field(def.variant(index).fields[FieldIdx::from_usize(field)].name)
+                        PathElem::Field(
+                            def.variant(index.unwrap()).fields[FieldIdx::from_usize(field)].name,
+                        )
                     }
                     Variants::Multiple { .. } => bug!("we handled variants above"),
                 }