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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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6
docs/modules/ROOT/pages/extending-contracts.adoc
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@ -20,7 +20,7 @@ For example, imagine you want to change xref:api:access.adoc#AccessControl[`Acce
```solidity
// contracts/ModifiedAccessControl.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/AccessControl.sol";
@ -48,7 +48,7 @@ Here is a modified version of xref:api:access.adoc#AccessControl[`AccessControl`
```solidity
// contracts/ModifiedAccessControl.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/AccessControl.sol";
@ -80,7 +80,7 @@ Hooks are simply functions that are called before or after some action takes pla
Here's how you would implement the `IERC721Receiver` pattern in `ERC20`, using the xref:api:token/ERC20.adoc#ERC20-_beforeTokenTransfer-address-address-uint256-[`_beforeTokenTransfer`] hook:
```solidity
pragma solidity ^0.6.0;
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";