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Optimize constructor of ERC777 #2551

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Mar 2, 2021
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Optimize constructor of ERC777 #2551

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3221b61
Optimize constructor of ERC777
frangio Mar 2, 2021
fbd7bd7
add changelog entry
frangio Mar 2, 2021
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -16,6 +16,7 @@
* Overall reorganisation of the contract folder to improve clarity and discoverability. ([#2503](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2503))
* `ERC20Capped`: optimize gas usage of by enforcing te check directly in `_mint`. ([#2524](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2524))
* Rename `UpgradeableProxy` to `ERC1967Proxy`. ([#2547](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2547))
* `ERC777`: Optimize the gas costs of the constructor. ([#2551](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2551))

### How to upgrade from 3.x

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4 changes: 2 additions & 2 deletions contracts/token/ERC777/ERC777.sol
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Expand Up @@ -65,8 +65,8 @@ contract ERC777 is Context, IERC777, IERC20 {
_symbol = symbol_;

_defaultOperatorsArray = defaultOperators_;
for (uint256 i = 0; i < _defaultOperatorsArray.length; i++) {
_defaultOperators[_defaultOperatorsArray[i]] = true;
for (uint256 i = 0; i < defaultOperators_.length; i++) {
_defaultOperators[defaultOperators_[i]] = true;
}

// register interfaces
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