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Update contracts to support Solidity 0.8.x (#2442)

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Co-authored-by: Francisco Giordano <frangio.1@gmail.com>
This commit is contained in:
Andre Korol
2021-01-14 22:38:53 +00:00
committed by GitHub
parent 6be0b410dc
commit 974c534210
159 changed files with 338 additions and 509 deletions
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10
docs/modules/ROOT/pages/access-control.adoc
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@ -13,7 +13,7 @@ OpenZeppelin provides xref:api:access.adoc#Ownable[`Ownable`] for implementing o
----
// contracts/MyContract.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
@ -62,7 +62,7 @@ Here's a simple example of using `AccessControl` in an xref:tokens.adoc#ERC20[`E
----
// contracts/MyToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
@ -94,7 +94,7 @@ Let's augment our ERC20 token example by also defining a 'burner' role, which le
----
// contracts/MyToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
@ -139,7 +139,7 @@ Let's take a look at the ERC20 token example, this time taking advantage of the
----
// contracts/MyToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
@ -148,7 +148,7 @@ contract MyToken is ERC20, AccessControl {
bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
bytes32 public constant BURNER_ROLE = keccak256("BURNER_ROLE");
constructor() public ERC20("MyToken", "TKN") {
constructor() ERC20("MyToken", "TKN") {
// Grant the contract deployer the default admin role: it will be able
// to grant and revoke any roles
_setupRole(DEFAULT_ADMIN_ROLE, msg.sender);