From fa429026fbc71982117dd0331a6c3544700a1c35 Mon Sep 17 00:00:00 2001
From: Dori Medini <dori@starkware.co>
Date: Thu, 30 Apr 2026 12:58:25 +0300
Subject: [PATCH] blockifier: implement conversion from commitment state diff
 to state maps

---
 crates/blockifier/src/state/cached_state.rs | 22 +++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/crates/blockifier/src/state/cached_state.rs b/crates/blockifier/src/state/cached_state.rs
index 9a27bd66207..6bf5798773d 100644
--- a/crates/blockifier/src/state/cached_state.rs
+++ b/crates/blockifier/src/state/cached_state.rs
@@ -687,6 +687,28 @@ impl From<StateMaps> for CommitmentStateDiff {
     }
 }
 
+#[cfg(any(test, feature = "testing"))]
+impl From<CommitmentStateDiff> for StateMaps {
+    fn from(commitment_state_diff: CommitmentStateDiff) -> Self {
+        Self {
+            class_hashes: commitment_state_diff.address_to_class_hash.into_iter().collect(),
+            nonces: commitment_state_diff.address_to_nonce.into_iter().collect(),
+            compiled_class_hashes: commitment_state_diff
+                .class_hash_to_compiled_class_hash
+                .into_iter()
+                .collect(),
+            storage: commitment_state_diff
+                .storage_updates
+                .into_iter()
+                .flat_map(|(address, storage)| {
+                    storage.into_iter().map(move |(key, value)| ((address, key), value))
+                })
+                .collect(),
+            declared_contracts: Default::default(),
+        }
+    }
+}
+
 impl From<CommitmentStateDiff> for ThinStateDiff {
     fn from(commitment_state_diff: CommitmentStateDiff) -> Self {
         Self {