Simplify Casting (#128)

* abi.decode * indent fix

Simplify Casting (#128)
* abi.decode * indent fix
644e437c · Alina · GitHub · f53f7653 · 644e437c
Commit 644e437c authored Dec 11, 2020 by Alina Committed by GitHub Dec 11, 2020
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Showing with 8 additions and 4 deletions

Lib_BytesUtils.sol ...ts/optimistic-ethereum/libraries/utils/Lib_BytesUtils.sol +8 -4

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--- a/packages/contracts/contracts/optimistic-ethereum/libraries/utils/Lib_BytesUtils.sol
+++ b/packages/contracts/contracts/optimistic-ethereum/libraries/utils/Lib_BytesUtils.sol
@@ -177,6 +177,7 @@ library Lib_BytesUtils {
        pure
        returns (bytes32)
    {
+        if (_bytes.length < 32) {
            bytes32 ret;
            assembly {
                ret := mload(add(_bytes, 32))
@@ -184,6 +185,9 @@ library Lib_BytesUtils {
            return ret;
        }

+        return abi.decode(_bytes,(bytes32)); // will truncate if input length > 32 bytes
+    }
+
    function toUint256(
        bytes memory _bytes
    )