diff options
Diffstat (limited to 'packages/contracts/src/2.0.0/tokens/ERC721Token/MintableERC721Token.sol')
-rw-r--r-- | packages/contracts/src/2.0.0/tokens/ERC721Token/MintableERC721Token.sol | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/packages/contracts/src/2.0.0/tokens/ERC721Token/MintableERC721Token.sol b/packages/contracts/src/2.0.0/tokens/ERC721Token/MintableERC721Token.sol deleted file mode 100644 index bc5cd2cc2..000000000 --- a/packages/contracts/src/2.0.0/tokens/ERC721Token/MintableERC721Token.sol +++ /dev/null @@ -1,82 +0,0 @@ -/* - - Copyright 2018 ZeroEx Intl. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - -*/ - -pragma solidity 0.4.24; - -import "./ERC721Token.sol"; - - -contract MintableERC721Token is - ERC721Token -{ - /// @dev Function to mint a new token - /// Reverts if the given token ID already exists - /// @param _to Address of the beneficiary that will own the minted token - /// @param _tokenId ID of the token to be minted by the msg.sender - function _mint(address _to, uint256 _tokenId) - internal - { - require( - _to != address(0), - "ERC721_ZERO_TO_ADDRESS" - ); - - address owner = owners[_tokenId]; - require( - owner == address(0), - "ERC721_OWNER_ALREADY_EXISTS" - ); - - owners[_tokenId] = _to; - balances[_to] = safeAdd(balances[_to], 1); - - emit Transfer( - address(0), - _to, - _tokenId - ); - } - - /// @dev Function to burn a token - /// Reverts if the given token ID doesn't exist - /// @param _owner Owner of token with given token ID - /// @param _tokenId ID of the token to be burned by the msg.sender - function _burn(address _owner, uint256 _tokenId) - internal - { - require( - _owner != address(0), - "ERC721_ZERO_OWNER_ADDRESS" - ); - - address owner = owners[_tokenId]; - require( - owner == _owner, - "ERC721_OWNER_MISMATCH" - ); - - owners[_tokenId] = address(0); - balances[_owner] = safeSub(balances[_owner], 1); - - emit Transfer( - _owner, - address(0), - _tokenId - ); - } -} |