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Add Warning about use of delete #3412

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merged 4 commits into from
May 18, 2022
Merged

Add Warning about use of delete #3412

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fe9faf2
Added Warnign about use of delete
lucasAlonso May 15, 2022
c273744
changed Warning insertion acording PR
lucasAlonso May 16, 2022
672d6f8
changed Warning description and format
lucasAlonso May 17, 2022
6d228ae
Apply suggestions from code review
Amxx May 18, 2022
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8 changes: 8 additions & 0 deletions contracts/utils/structs/EnumerableMap.sol
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Expand Up @@ -31,6 +31,14 @@ import "./EnumerableSet.sol";
* - `uint256 -> address` (`UintToAddressMap`) since v3.0.0
* - `address -> uint256` (`AddressToUintMap`) since v4.6.0
* - `bytes32 -> bytes32` (`Bytes32ToBytes32`) since v4.6.0
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure unusable.
* See ethereum/solidity#11843 for more info
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*
* In order to clean an EnumerableMap, you can either remove all elements one by one or create a fresh instance using an array of EnumerableMap.
* ====
*/
library EnumerableMap {
using EnumerableSet for EnumerableSet.Bytes32Set;
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8 changes: 8 additions & 0 deletions contracts/utils/structs/EnumerableSet.sol
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Expand Up @@ -26,6 +26,14 @@ pragma solidity ^0.8.0;
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure unusable.
* See ethereum/solidity#11843 for more info
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*
* In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an array of EnumerableSet.
* ====
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
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