returned false if result.length==0

OpenZeppelin · Jul 29, 2019 · f9066ad · f9066ad
1 parent 0a8a49d
commit f9066ad
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diff --git a/contracts/introspection/ERC165Checker.sol b/contracts/introspection/ERC165Checker.sol
@@ -98,6 +98,7 @@ library ERC165Checker {
     {
         bytes memory encodedParams = abi.encodeWithSelector(_INTERFACE_ID_ERC165, interfaceId);
         (bool success, bytes memory result) = account.staticcall.gas(30000)(encodedParams);
+        if (result.length == 0) return (false, false);
         return (success, abi.decode(result, (bool)));
     }
 }
diff --git a/package-lock.json b/package-lock.json