Test exhaustiveness of type match in collect_lifetimes

2021-01-24 23:04:01 -08:00 · 2021-01-24 23:04:01 -08:00 · 6e800ff826
commit 6e800ff826
parent 68bda7a004
1 changed files with 6 additions and 2 deletions
--- a/serde_derive/src/internals/attr.rs
+++ b/serde_derive/src/internals/attr.rs
@ -1909,8 +1909,12 @@ fn collect_lifetimes(ty: &syn::Type, out: &mut BTreeSet<syn::Lifetime>) {
        | syn::Type::TraitObject(_)
        | syn::Type::ImplTrait(_)
        | syn::Type::Infer(_)
-        | syn::Type::Verbatim(_)
-        | _ => {}
+        | syn::Type::Verbatim(_) => {}
+
+        #[cfg(test)]
+        syn::Type::__TestExhaustive(_) => unimplemented!(),
+        #[cfg(not(test))]
+        _ => {}
    }
 }