* Implement AddressSet in terms of a generic Set
* Add Uint256Set
* Add EnumerableMap
* Fix wording on EnumerableSet docs and tests
* Refactor ERC721 using EnumerableSet and EnumerableMap
* Fix tests
* Fix linter error
* Gas optimization for EnumerableMap
* Gas optimization for EnumerableSet
* Remove often not-taken if from Enumerable data structures
* Fix failing test
* Gas optimization for EnumerableMap
* Fix linter errors
* Add comment for clarification
* Improve test naming
* Rename EnumerableMap.add to set
* Add overload for EnumerableMap.get with custom error message
* Improve Enumerable docs
* Rename Uint256Set to UintSet
* Add changelog entry
* Remove _grantRole and _revokeRole, replace with _setupRole
* Make all external AccessControl functions public
* Remove Ownable._transferOwnership
* Rename ERC721's _safeTransferFrom and _transferFrom to _safeTransfer and _transfer
* Make all ERC721 external functions public
* Make all miscelaneous external functions public instead
* Add changelog entry
* Move calldata arguments to memory
* Update contracts/access/AccessControl.sol
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Restrict setupRole to the constructor
* Replace isConstructor for !isContract
Co-authored-by: Francisco Giordano <frangio.1@gmail.com>
* Add revert if the bytecode length is not greater than zero
* Add value parameter to create2 deploy function
Add tests for contract balance revert and depositing funds
* Change parameter name to amount for clarity
* Fix test for value sending
* Fix linter error
* Change revert reason
* Improve Create2.deploy documentation
* Slight test improvement
* Add changelog entry
Co-authored-by: Nicolás Venturo <nicolas.venturo@gmail.com>
* Add revert reason to EnumerableSet.get.
* Rename EnumerableSet values to keys
* Rename get to at
* Add changelog entry
* Rename keys to values
* Add leading underscore to struct members
* Add signed to unsigned conversion to SafeCast
* Update SafeCast exception message
* Add test for SafeCast int to uint conversion
- Update SafeCastMock
- Add tests for SafeCast int256 to uint256
* Update SafeCast int to uint definition
Apply suggestions from code review.
Co-Authored-By: Nicolás Venturo <nicolas.venturo@gmail.com>
* Update test for SafeCast int to uint conversion
* Update SafeCast test after code review
- Change "downcasts" to "casts"
- Move test closer to its function
* Fix error in SafeCast toUint256 description
* Fix breaking error in SafeCast
* Add uint256 to int256 conversion to SafeCast
- Add function
- Add mock
- Add test
* Update SafeCast unsigned to signed conversion
- Update error in conversion to be more clear
- Update constants in test to be powers of 2 instead of shifts
* Add changelog entry
* Update SafeCast tests
- Add minus in INT256_MIN for clarity
Co-Authored-By: Nicolás Venturo <nicolas.venturo@gmail.com>
Co-authored-by: Nicolás Venturo <nicolas.venturo@gmail.com>
* Remove Roles
* Add AccessControl and tests
* Removed IAccessControl
* Add RoleGranted and RoleRevoked events
* Make roles grantable and revokable regardless of their previous status
* Fix typo
* Add documentation
* Cleanup tests
* Add enumeration tests
* Add _setRoleAdmin tests
* Fix lint error
* Fix AccessControl link in docs
* WIP on access control guide
* Rename getRoleMembersCount
* Add tests for new role admin
* Make AccessControl GSN compatible
* Update access control guide
* Rename admin to adminRole
* Rename roleIds to roles
* Add 'operator' to RoleGranted and RoleRevoked events.
* Only emit events if the roles were not previously granted/revoked
* Uncomment expectEvent.not tests
* Rename operator to sender
* Add changelog entry
* adding mock contacts, test code
* adding changes to ERC721.sol per @frangio's comments on original PR #1943
* fix solhint warnings
* Update contracts/token/ERC721/ERC721.sol
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* same revert wording per @frangio's review suggestion
* per @frangio's feedback, changing the inline assembly to accomplish: we want to ignore the first 4 bytes of content, so we should read the length and decrease it by 4, then take the memory location and add 4 to it, then store the new length at the new memory location, then that is the new byte array that we want.
* change revert msg assembly per PR comment by @frangio
* unify revert msg in test code
* fix some failed tests, wording change
* Update contracts/token/ERC721/ERC721.sol
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Update contracts/token/ERC721/ERC721.sol
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* fix test case, revert without reason
* fix 'ERC721ReceiverRevertsMock: Transaction rejected by receiver'
* style change per review by @frangio
* fix revert reason forwarding
* remove duplicate contracts/mocks/ERC721ReceiverRevertsMock.sol per review https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2018\#issuecomment-574381034
* Add changelog entry
* Fix tests
* Make tests more clear
Co-authored-by: Francisco Giordano <frangio.1@gmail.com>
Co-authored-by: Nicolás Venturo <nicolas.venturo@gmail.com>
* Update ReentrancyGuard for Istanbul Hard Fork
Changes:
Added L37, `_guardCounter = 1;`
Rationale:
The planned _Istanbul Hard Fork_ will implement [EIP 2200](e4d4ea348e/EIPS/eip-2200.md), which implements "net gas metering" for `sstore` operations. If the final value of `_guardCounter` is unchanged relative to the original value of it, a gas refund will be applied and charges for changing the value of `_guardCounter` will effectively not exist. This ends up being cheaper than the current implementation ONLY AFTER Istanbul. Before Istanbul, the added line actually ends up costing more gas.
Note that if `_guardCounter` is `0` initially, the initial cost and subsequent refund will both be larger than if `_guardCounter` is `1` initially. Although in both cases, the net gas cost (`gasCost - gasRefund`) are equal, it's better in terms of cost to have both the gas cost and refund smaller, as there is some limit to the percentage of a gas refund that can actually be realized.
* Update CHANGELOG.md
Added note for change to ReentrancyGuard.sol
* Update ReentrancyGuard.sol
* Update CHANGELOG.md
