Merge pull request #1022 from ethereum/throw-empty-recompiled-bytecode

Throw before if compiled bytecode empty instead of later in creation bytecode

packages/lib-sourcify/src/lib/verification.ts

@@ -47,6 +47,15 @@ export async function verifyDeployed(
   };
   const recompiled = await checkedContract.recompile();
 
+  if (
+    recompiled.deployedBytecode === '0x' ||
+    recompiled.creationBytecode === '0x'
+  ) {
+    throw new Error(
+      `The compiled contract bytecode is "0x". Are you trying to verify an abstract contract?`
+    );
+  }
+
   const deployedBytecode = await getBytecode(sourcifyChain, address);
 
   // Can't match if there is no deployed bytecode
@@ -369,6 +378,7 @@ export async function matchWithCreationTx(
     match.message = `Failed to match with creation bytecode: recompiled contract's creation bytecode is empty`;
     return;
   }
+
   const creatorTx = await getTx(creatorTxHash, sourcifyChain);
   const creatorTxData = creatorTx.input;