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18 lines
647 B
18 lines
647 B
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.4;
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import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
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import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
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import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-ERC20PermitUpgradeable.sol";
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contract MyTokenV1 is Initializable, ERC20Upgradeable {
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function initialize() initializer public {
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__ERC20_init("MyToken", "MTK");
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}
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}
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contract MyTokenV2 is Initializable, ERC20Upgradeable, ERC20PermitUpgradeable {
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function initializeV2() reinitializer(2) public {
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__ERC20Permit_init("MyToken");
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}
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} |