From 5ceeda4390adf55d6d1c51625c3eedf98b3d5392 Mon Sep 17 00:00:00 2001
From: Thibaut Schaeffer <schaeffer.thibaut@gmail.com>
Date: Fri, 3 Jan 2025 18:39:31 +0100
Subject: [PATCH] Simplify mock prover factory (#2305)

---
 backend/src/lib.rs      |  2 +-
 backend/src/mock/mod.rs | 15 ++-------------
 2 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/backend/src/lib.rs b/backend/src/lib.rs
index b233adaeba..0dafa47a03 100644
--- a/backend/src/lib.rs
+++ b/backend/src/lib.rs
@@ -73,7 +73,7 @@ pub const DEFAULT_ESTARK_OPTIONS: &str = "stark_gl";
 impl BackendType {
     pub fn factory<T: FieldElement>(&self) -> Box<dyn BackendFactory<T>> {
         match self {
-            BackendType::Mock => Box::new(mock::MockBackendFactory::new()),
+            BackendType::Mock => Box::new(mock::MockBackendFactory),
             #[cfg(feature = "halo2")]
             BackendType::Halo2 => Box::new(halo2::Halo2ProverFactory),
             #[cfg(feature = "halo2")]
diff --git a/backend/src/mock/mod.rs b/backend/src/mock/mod.rs
index b451fe806a..9d58d0036e 100644
--- a/backend/src/mock/mod.rs
+++ b/backend/src/mock/mod.rs
@@ -2,7 +2,6 @@ use std::{
     collections::BTreeMap,
     hash::{DefaultHasher, Hash, Hasher},
     io,
-    marker::PhantomData,
     path::PathBuf,
     sync::Arc,
 };
@@ -24,19 +23,9 @@ mod connection_constraint_checker;
 mod machine;
 mod polynomial_constraint_checker;
 
-pub(crate) struct MockBackendFactory<F: FieldElement> {
-    _marker: PhantomData<F>,
-}
-
-impl<F: FieldElement> MockBackendFactory<F> {
-    pub(crate) const fn new() -> Self {
-        Self {
-            _marker: PhantomData,
-        }
-    }
-}
+pub(crate) struct MockBackendFactory;
 
-impl<F: FieldElement> BackendFactory<F> for MockBackendFactory<F> {
+impl<F: FieldElement> BackendFactory<F> for MockBackendFactory {
     fn create(
         &self,
         pil: Arc<Analyzed<F>>,