trying to debug calldata hash mismatch

Author: sirasistant

yarn-project/aztec-node/src/aztec-node/server.ts

@@ -1,5 +1,6 @@
 import { Archiver } from '@aztec/archiver';
 import {
+  AppendOnlyTreeSnapshot,
   CONTRACT_TREE_HEIGHT,
   CircuitsWasm,
   EthAddress,
@@ -88,7 +89,7 @@ export class AztecNodeService implements AztecNode {
     const p2pClient = await createP2PClient(config, new InMemoryTxPool(), archiver);
 
     // now create the merkle trees and the world state syncher
-    const merkleTreeDB = await MerkleTrees.new(levelup(createMemDown()), await CircuitsWasm.get());
+    const merkleTreeDB = await AztecNodeService.createMerkleTreeDB();
     const worldStateConfig: WorldStateConfig = getWorldStateConfig();
     const worldStateSynchroniser = new ServerWorldStateSynchroniser(merkleTreeDB, archiver, worldStateConfig);
 
@@ -119,6 +120,10 @@ export class AztecNodeService implements AztecNode {
     );
   }
 
+  static async createMerkleTreeDB() {
+    return MerkleTrees.new(levelup(createMemDown()), await CircuitsWasm.get());
+  }
+
   /**
    * Method to determine if the node is ready to accept transactions.
    * @returns - Flag indicating the readiness for tx submission.
@@ -376,15 +381,38 @@ export class AztecNodeService implements AztecNode {
     );
   }
 
+  async printRoots() {
+    const snapshots = await Promise.all(
+      [
+        MerkleTreeId.PRIVATE_DATA_TREE,
+        MerkleTreeId.NULLIFIER_TREE,
+        MerkleTreeId.CONTRACT_TREE,
+        MerkleTreeId.PUBLIC_DATA_TREE,
+        MerkleTreeId.L1_TO_L2_MESSAGES_TREE,
+        MerkleTreeId.BLOCKS_TREE,
+      ].map(tree => this.getTreeSnapshot(tree)),
+    );
+    console.log(snapshots.map(snap => snap.root.toString()));
+  }
+
+  async getTreeSnapshot(id: MerkleTreeId): Promise<AppendOnlyTreeSnapshot> {
+    const db = await AztecNodeService.createMerkleTreeDB();
+    const treeInfo = await db.getTreeInfo(id, true);
+    return new AppendOnlyTreeSnapshot(Fr.fromBuffer(treeInfo.root), Number(treeInfo.size));
+  }
+
   /**
    * Simulates the public part of a transaction with the current state.
    * @param tx - The transaction to simulate.
    **/
   public async simulatePublicPart(tx: Tx) {
     this.log.info(`Simulating tx ${await tx.getTxHash()}`);
+    await this.printRoots();
+    // Instantiate merkle tree db so uncommited updates by this simulation are local to it.
+    const merkleTreeDb = await AztecNodeService.createMerkleTreeDB();
 
     const publicProcessorFactory = new PublicProcessorFactory(
-      this.worldStateSynchroniser.getLatest(),
+      merkleTreeDb.asLatest(),
       this.contractDataSource,
       this.l1ToL2MessageSource,
     );
@@ -398,6 +426,7 @@ export class AztecNodeService implements AztecNode {
       throw failedTxs[0].error;
     }
     this.log.info(`Simulated tx ${await tx.getTxHash()} succeeds`);
+    await this.printRoots();
   }
 
   /**