Use abi.encodeWithSelector instead of bytes.concat

EspressoSystems · May 11, 2023 · 67127e2 · 67127e2
1 parent a02419a
commit 67127e2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/rollup/RollupCore.sol b/src/rollup/RollupCore.sol
@@ -85,7 +85,7 @@ abstract contract RollupCore is IRollupCore, PausableUpgradeable {
 
     constructor() {
         (bool ok, bytes memory data) = address(100).staticcall(
-            bytes.concat(ArbSys.arbOSVersion.selector)
+            abi.encodeWithSelector(ArbSys.arbOSVersion.selector)
         );
         _hostChainIsArbitrum = ok && data.length == 32;
     }