diff options
Diffstat (limited to 'packages/contracts/src/2.0.0/forwarder/MixinERC721.sol')
| -rw-r--r-- | packages/contracts/src/2.0.0/forwarder/MixinERC721.sol | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/packages/contracts/src/2.0.0/forwarder/MixinERC721.sol b/packages/contracts/src/2.0.0/forwarder/MixinERC721.sol index b2e8803a9..b5be223b6 100644 --- a/packages/contracts/src/2.0.0/forwarder/MixinERC721.sol +++ b/packages/contracts/src/2.0.0/forwarder/MixinERC721.sol @@ -16,17 +16,19 @@ */ -pragma solidity ^0.4.24; +pragma solidity 0.4.24; pragma experimental ABIEncoderV2; import "../utils/LibBytes/LibBytes.sol"; import "../tokens/ERC721Token/IERC721Token.sol"; + contract MixinERC721 { using LibBytes for bytes; - bytes4 constant ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,uint256,bytes)")); - bytes4 constant ERC721_RECEIVED_OPERATOR = bytes4(keccak256("onERC721Received(address,address,uint256,bytes)")); + + bytes4 constant internal ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,uint256,bytes)")); + bytes4 constant internal ERC721_RECEIVED_OPERATOR = bytes4(keccak256("onERC721Received(address,address,uint256,bytes)")); function onERC721Received(address, uint256, bytes memory) public |