From 40fe149e7ddc0afc9157a90204e4ea977b96277c Mon Sep 17 00:00:00 2001
From: sealer3 <125761775+sealer3@users.noreply.github.com>
Date: Wed, 12 Jul 2023 08:14:31 +0000
Subject: [PATCH] Catch auxdata decode error when checking for perfect match

---
 packages/lib-sourcify/src/lib/CheckedContract.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/lib-sourcify/src/lib/CheckedContract.ts b/packages/lib-sourcify/src/lib/CheckedContract.ts
index a0ded8143..00e9ce7d7 100644
--- a/packages/lib-sourcify/src/lib/CheckedContract.ts
+++ b/packages/lib-sourcify/src/lib/CheckedContract.ts
@@ -114,7 +114,13 @@ export class CheckedContract {
   async tryToFindPerfectMetadata(
     deployedBytecode: string
   ): Promise<CheckedContract | null> {
-    const decodedAuxdata = decodeBytecode(deployedBytecode);
+    let decodedAuxdata;
+    try {
+      decodedAuxdata = decodeBytecode(deployedBytecode);
+    } catch (err) {
+      // There is no auxdata at all in this contract
+      return null;
+    }
 
     const pathContent: PathContent[] = Object.keys(this.solidity).map(
       (path) => {