truffle-flattener on sol file giving this error.
node_modules/@openzeppelin/contracts-upgradeable/utils/CountersUpgradeable.sol for extracting its imports: ParserError: missing ';' at '{' (26:18)
at getDependencies (/usr/local/lib/node_modules/truffle-flattener/index.js:44:11)
at dependenciesDfs (/usr/local/lib/node_modules/truffle-flattener/index.js:64:24)
at async dependenciesDfs (/usr/local/lib/node_modules/truffle-flattener/index.js:73:7)
at async dependenciesDfs (/usr/local/lib/node_modules/truffle-flattener/index.js:73:7)
at async getSortedFilePaths (/usr/local/lib/node_modules/truffle-flattener/index.js:83:5)
at async flatten (/usr/local/lib/node_modules/truffle-flattener/index.js:180:23)
at async main (/usr/local/lib/node_modules/truffle-flattener/index.js:237:3)
Environment
Using hardhat
Details
node_modules/@openzeppelin/contracts-upgradeable/utils/CountersUpgradeable.sol for extracting its imports: ParserError: missing ‘;’ at ‘{’ (26:18)
Code to reproduce
File 1
cat contracts/v1/FooBar.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;
import "../presets/ERC20Preset.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
contract FooBar is Initializable, ERC20Preset {
function init(
string calldata name,
string calldata symbol,
uint256 initialSupply
) public virtual initializer {
__ERC20_init(name, symbol);
_setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
_setupRole(MINTER_ROLE, _msgSender());
_setupRole(PAUSER_ROLE, _msgSender());
_setupRole(BLACKLIST_ROLE, _msgSender());
_mint(_msgSender(), initialSupply);
}
}
File 2 :
cat contracts/presets/ERC20Preset.sol
// contracts/presets/ERC20Preset.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20PausableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-ERC20PermitUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
/**
* @dev {ERC20} token, including:
*
* - ability for holders to burn (destroy) their tokens
* - a minter role that allows for token minting (creation)
* - a pauser role that allows to stop all token transfers
*
* This contract uses {AccessControl} to lock permissioned functions using the
* different roles - head to its documentation for details.
*
* The account that deploys the contract will be granted the minter and pauser
* roles, as well as the default admin role, which will let it grant both minter
* and pauser roles to other accounts.
*/
contract ERC20Preset is
Initializable,
ContextUpgradeable,
AccessControlUpgradeable,
ERC20BurnableUpgradeable,
ERC20PermitUpgradeable,
ERC20PausableUpgradeable
{
function initialize(string memory name, string memory symbol)
public
virtual
initializer
{
__ERC20PresetMinterPauser_init(name, symbol);
}
bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
bytes32 public constant BLACKLIST_ROLE = keccak256("BLACKLIST_ROLE");
/**
* @dev Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE`, `PAUSER_ROLE`, and `BLACKLIST_ROLE` to the
* account that deploys the contract.
*
* See {ERC20-constructor}.
*/
function __ERC20PresetMinterPauser_init(
string memory name,
string memory symbol
) internal initializer {
__Context_init_unchained();
__AccessControl_init_unchained();
__ERC20_init_unchained(name, symbol);
__ERC20Burnable_init_unchained();
__Pausable_init_unchained();
__ERC20Pausable_init_unchained();
__ERC20PresetMinterPauser_init_unchained(name, symbol);
}
function __ERC20PresetMinterPauser_init_unchained(
string memory name,
string memory symbol
) internal initializer {
_setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
_setupRole(MINTER_ROLE, _msgSender());
_setupRole(PAUSER_ROLE, _msgSender());
_setupRole(BLACKLIST_ROLE, _msgSender());
}
/**
* @dev Creates `amount` new tokens for `to`.
*
* See {ERC20-_mint}.
*
* Requirements:
*
* - the caller must have the `MINTER_ROLE`.
*/
function mint(address to, uint256 amount) public virtual {
require(
hasRole(MINTER_ROLE, _msgSender()),
"ERC20PresetMinterPauser: must have minter role to mint"
);
_mint(to, amount);
}
/**
* @dev Pauses all token transfers.
*
* See {ERC20Pausable} and {Pausable-_pause}.
*
* Requirements:
*
* - the caller must have the `PAUSER_ROLE`.
*/
function pause() public virtual {
require(
hasRole(PAUSER_ROLE, _msgSender()),
"ERC20PresetMinterPauser: must have pauser role to pause"
);
_pause();
}
/**
* @dev Unpauses all token transfers.
*
* See {ERC20Pausable} and {Pausable-_unpause}.
*
* Requirements:
*
* - the caller must have the `PAUSER_ROLE`.
*/
function unpause() public virtual {
require(
hasRole(PAUSER_ROLE, _msgSender()),
"ERC20PresetMinterPauser: must have pauser role to unpause"
);
_unpause();
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
)
internal
virtual
override(
ERC20Upgradeable,
//ERC20PermitUpgradeable,
ERC20PausableUpgradeable
)
{
super._beforeTokenTransfer(from, to, amount);
}
uint256[50] private __gap;
}
