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Migrate contracts to Solidity 0.7 (#2319)

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* Update contract pragmas to solidity 0.7

* Remove internal declaration on constructors

* Reference SafeMath explicitely

* Remove public constructor declaration from abstract contracts

* Remove public constructor declaration from non-abstract contracts
This commit is contained in:
Elena Gesheva
2020-07-30 00:11:32 +03:00
committed by GitHub
parent 09014f90f9
commit 04fc35707d
125 changed files with 194 additions and 193 deletions
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4
contracts/mocks/SafeERC20Helper.sol
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma solidity ^0.7.0;
import "../GSN/Context.sol";
import "../token/ERC20/IERC20.sol";
@ -98,7 +98,7 @@ contract SafeERC20Wrapper is Context {
IERC20 private _token;
constructor (IERC20 token) public {
constructor (IERC20 token) {
_token = token;
}