tweak intro dev comment to reflect more typical use case, wrapping an `IERC20` reference for a deposit contract using others' ERC-20 tokens. I might be mistaken ~ but typically SafeERC20 won't be used in conjunction with ERC20 for OZ token deployments?
* Initial ERC1155 implementation with some tests (#1803)
* Initial ERC1155 implementation with some tests
* Remove mocked isERC1155TokenReceiver
* Revert reason edit nit
* Remove parameters associated with isERC1155TokenReceiver call
* Add tests for approvals and single transfers
* Add tests for transferring to contracts
* Add tests for batch transfers
* Make expectEvent.inTransaction tests async
* Renamed "owner" to "account" and "holder"
* Document unspecified balanceOfBatch reversion on zero behavior
* Ensure accounts can't set their own operator status
* Specify descriptive messages for underflow errors
* Bring SafeMath.add calls in line with OZ style
* Explicitly prevent _burn on the zero account
* Implement batch minting/burning
* Refactored operator approval check into isApprovedForAll calls
* Renamed ERC1155TokenReceiver to ERC1155Receiver
* Added ERC1155Holder
* Fix lint issues
* Migrate tests to @openzeppelin/test-environment
* Port ERC 1155 branch to Solidity 0.6 (and current master) (#2130)
* port ERC1155 to Solidity 0.6
* make ERC1155 constructor more similar to ERC721 one
* also migrate mock contracts to Solidity 0.6
* mark all non-view functions as virtual
Co-authored-by: Alan Lu <alanlu1023@gmail.com>
Co-authored-by: Nicolás Venturo <nicolas.venturo@gmail.com>
Co-authored-by: Robert Kaiser <kairo@kairo.at>
* Improve ERC20/721 Pausable docs
* Add ERC20Pausable mint and burn tests
* Add ERC721Pausable mint and burn tests
* Add _beforeTransfer hook in ERC777 to mint and burn
* provide 'automatic' token URI by appending the token ID to the base URI, if a base is set but no token-specific URI is available
* make the three cases more explicit, avoid else after return
* adjust comments to reflect reality
* Update docs for ERC20 and ERC721
* Add EnumerableMap to docs
* Update misc guides
* Apply suggestions from code review
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
Co-authored-by: Francisco Giordano <frangio.1@gmail.com>
* 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
