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Making IERC721Receiver an interface (#2225)

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* Making IERC721Receiver an interface

* Update IERC721Receiver.sol

Co-authored-by: Nicolás Venturo <nicolas.venturo@gmail.com>
This commit is contained in:
Julian M. Rodriguez
2020-05-06 16:47:53 -03:00
committed by GitHub
parent ac0a4327a9
commit 78dc37739f
1 changed files with 3 additions and 3 deletions
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6
contracts/token/ERC721/IERC721Receiver.sol
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@ -5,7 +5,7 @@ pragma solidity ^0.6.0;
* @dev Interface for any contract that wants to support safeTransfers * @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts. * from ERC721 asset contracts.
*/ */
abstract contract IERC721Receiver { interface IERC721Receiver {
/** /**
* @notice Handle the receipt of an NFT * @notice Handle the receipt of an NFT
* @dev The ERC721 smart contract calls this function on the recipient * @dev The ERC721 smart contract calls this function on the recipient
@ -20,6 +20,6 @@ abstract contract IERC721Receiver {
* @param data Additional data with no specified format * @param data Additional data with no specified format
* @return bytes4 `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` * @return bytes4 `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
*/ */
function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data) function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data)
public virtual returns (bytes4); external returns (bytes4);
} }