Make ERC721._approve internal

(cherry picked from commit bb068ed5d9)
2021-03-03 16:39:08 -03:00
parent fa64a1ced0
commit a686a906bc
1 changed files with 6 additions and 1 deletions
--- a/contracts/token/ERC721/ERC721.sol
+++ b/contracts/token/ERC721/ERC721.sol
@ -449,7 +449,12 @@ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable
        return (retval == _ERC721_RECEIVED);
    }

-    function _approve(address to, uint256 tokenId) private {
+    /**
+     * @dev Approve `to` to operate on `tokenId`
+     *
+     * Emits an {Approval} event.
+     */
+    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId); // internal owner
    }