From a60e4dd2fe5af6f18a298515b915ce642e022bad Mon Sep 17 00:00:00 2001
From: schaeff <thibaut@schaeff.fr>
Date: Tue, 9 Jul 2024 14:42:45 +0200
Subject: [PATCH] fail gracefully on different degrees

---
 backend/src/plonky3/mod.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/backend/src/plonky3/mod.rs b/backend/src/plonky3/mod.rs
index 3c24048b7..f47a6eeb5 100644
--- a/backend/src/plonky3/mod.rs
+++ b/backend/src/plonky3/mod.rs
@@ -29,6 +29,10 @@ impl<T: FieldElement> BackendFactory<T> for Factory {
         if verification_app_key.is_some() {
             return Err(Error::NoAggregationAvailable);
         }
+        if pil.degrees().len() > 1 {
+            return Err(Error::NoVariableDegreeAvailable);
+        }
+
         Ok(Box::new(Plonky3Prover::new(pil)))
     }
 }