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use constant for ERC721 callback

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Michele Balistreri 2020-04-14 09:31:53 +03:00
parent 0a10824c6a
commit c4b7027a56
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1 changed files with 2 additions and 2 deletions
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contracts/NFTBucket.sol
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@ -32,7 +32,7 @@ contract NFTBucket is IERC165, IERC721Receiver {
bytes32 code; bytes32 code;
} }
bytes4 private constant _ERC721_RECEIVED = 0x150b7a02; bytes4 private constant _ERC721_RECEIVED = 0x150b7a02; //bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))
bytes32 constant EIP712DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); bytes32 constant EIP712DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
bytes32 constant REDEEM_TYPEHASH = keccak256("Redeem(uint256 blockNumber,bytes32 blockHash,address receiver,bytes32 code)"); bytes32 constant REDEEM_TYPEHASH = keccak256("Redeem(uint256 blockNumber,bytes32 blockHash,address receiver,bytes32 code)");
@ -169,6 +169,6 @@ contract NFTBucket is IERC165, IERC721Receiver {
gift.tokenID = _tokenID; gift.tokenID = _tokenID;
gift.code = code; gift.code = code;
return 0x150b7a02; //bytes4(keccak256("onERC721Received(address,address,uint256,bytes)")) return _ERC721_RECEIVED;
} }
} }