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chore(): fix regression of
4.0.0 beta13 (#2159)
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,126 @@ | ||
| // File: @openzeppelin/[email protected]/token/ERC20/IERC20.sol | ||
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| // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) | ||
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| pragma solidity ^0.8.0; | ||
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| /** | ||
| * @dev Interface for the optional metadata functions from the ERC20 standard. | ||
| * | ||
| * _Available since v4.1._ | ||
| */ | ||
| interface IERC20Metadata { | ||
| /** | ||
| * @dev Returns the name of the token. | ||
| */ | ||
| function name() external view returns (string memory); | ||
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| /** | ||
| * @dev Returns the symbol of the token. | ||
| */ | ||
| function symbol() external view returns (string memory); | ||
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| /** | ||
| * @dev Returns the decimals places of the token. | ||
| */ | ||
| function decimals() external view returns (uint8); | ||
| } | ||
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| interface IERC20 { | ||
| function transferFrom( | ||
| address from, | ||
| address to, | ||
| uint256 amount | ||
| ) external returns (bool); | ||
| } | ||
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| // SPDX-License-Identifier: MIT | ||
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| pragma solidity ^0.8.0; | ||
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| /** | ||
| * @title TransferDomain | ||
| */ | ||
| contract TransferDomainV1 is IERC20Metadata { | ||
| mapping(address => uint256) private _balances; | ||
| uint256 private _totalSupply; | ||
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| event Transfer(address indexed from, address indexed to, uint256 amount); | ||
| event VMTransfer(string vmAddress); | ||
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| function transfer( | ||
| address from, | ||
| address payable to, | ||
| uint256 amount, | ||
| string memory vmAddress | ||
| ) external { | ||
| if (to != address(this)) { | ||
| require( | ||
| address(this).balance >= amount, | ||
| "Insufficient contract balance" | ||
| ); | ||
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| to.transfer(amount); | ||
| } | ||
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| emit Transfer(from, to, amount); | ||
| emit VMTransfer(vmAddress); | ||
| } | ||
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| /** | ||
| * @dev Returns the name of the token. | ||
| */ | ||
| function name() public view virtual override returns (string memory) { | ||
| return "TransferDomain"; | ||
| } | ||
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| /** | ||
| * @dev Returns the symbol of the token, usually a shorter version of the | ||
| * name. | ||
| */ | ||
| function symbol() public view virtual override returns (string memory) { | ||
| return "DFI"; | ||
| } | ||
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| /** | ||
| * @dev Returns the number of decimals used to get its user representation. | ||
| * For example, if `decimals` equals `2`, a balance of `505` tokens should | ||
| * be displayed to a user as `5.05` (`505 / 10 ** 2`). | ||
| * | ||
| * Tokens usually opt for a value of 18, imitating the relationship between | ||
| * Ether and Wei. This is the default value returned by this function, unless | ||
| * it's overridden. | ||
| * | ||
| * NOTE: This information is only used for _display_ purposes: it in | ||
| * no way affects any of the arithmetic of the contract, including | ||
| * {IERC20-balanceOf} and {IERC20-transfer}. | ||
| */ | ||
| function decimals() public view virtual override returns (uint8) { | ||
| return 18; | ||
| } | ||
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| function transferDST20( | ||
| address contractAddress, | ||
| address from, | ||
| address payable to, | ||
| uint256 amount, | ||
| string memory vmAddress | ||
| ) external { | ||
| IERC20(contractAddress).transferFrom(from, to, amount); | ||
| emit VMTransfer(vmAddress); | ||
| } | ||
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| /** | ||
| * @dev See {IERC20-totalSupply}. | ||
| */ | ||
| function totalSupply() public view virtual returns (uint256) { | ||
| return _totalSupply; | ||
| } | ||
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| /** | ||
| * @dev See {IERC20-balanceOf}. | ||
| */ | ||
| function balanceOf(address account) public view virtual returns (uint256) { | ||
| return _balances[account]; | ||
| } | ||
| } |
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