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| // SPDX-License-Identifier: CC0-1.0 | ||
| pragma solidity >=0.7.0 <0.9.0; | ||
| pragma solidity >=0.7.0; | ||
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| import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; | ||
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| /*------------------------------------------- DESCRIPTION --------------------------------------------------------------------------------------- | ||
| * @title ERC6123 - Settlement Token Interface | ||
| * @dev Settlement Token Interface enhances the ERC20 Token by introducing so called checked transfer functionality which can be used to directly interact with an SDC. | ||
| * Checked transfers can be conducted for single or multiple transactions where SDC will receive a success message whether the transfer was executed successfully or not. | ||
| * @dev Settlement Token Interface enhances the ERC20 Token by introducing an asynchronous (checked) transfer functionality which can be used to directly interact with an SDC. | ||
| * Transfers can be conducted for single or multiple transactions where SDC will receive a success message whether the transfer was executed successfully or not. | ||
| * The SDC or callbackContract needs to implemnt a function afterTransfer(bool success, uint256 transactionID, string memory transactionData) | ||
| */ | ||
| interface IERC20Settlement is IERC20 { | ||
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| /** | ||
| * @dev Emitted when a transfer gets requested | ||
| * @param from the address from which to transfer | ||
| * @param to the address to which to transfer | ||
| * @param value the value to transfer | ||
| * @param transactionID a transaction ID that may serve as correlation ID, will be passed to the callback. | ||
| * @param callbackContract a contract implementing afterTransfer | ||
| */ | ||
| event TransferRequested(address from, address to, uint256 value, uint256 transactionID, address callbackContract); | ||
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| interface IERC20Settlement is IERC20 { | ||
| /** | ||
| * @dev Emitted when a batch transfer gets requested | ||
| * @param from the addresses from which to transfer | ||
| * @param to the addresses to which to transfer | ||
| * @param value the values to transfer | ||
| * @param transactionID a transaction ID that may serve as correlation ID, will be passed to the callback. | ||
| * @param callbackContract a contract implementing afterTransfer | ||
| */ | ||
| event TransferBatchRequested(address[] from, address[] to, uint256[] value, uint256 transactionID, address callbackContract); | ||
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| /* | ||
| * @dev Performs a single transfer from msg.sender balance and checks whether this transfer can be conducted | ||
| * @param to - receiver | ||
| * @param value - transfer amount | ||
| * @param transactionID | ||
| * @param transactionID - an id that will be passed back to the callback | ||
| * @param callbackContract - a contract implementing the method afterTransfer(bool success, uint256 transactionID, string memory transactionData) | ||
| */ | ||
| function checkedTransfer(address to, uint256 value, uint256 transactionID) external; | ||
| function transferAndCallback(address to, uint256 value, uint256 transactionID, address callbackContract) external; | ||
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| /* | ||
| * @dev Performs a single transfer to a single addresss and checks whether this transfer can be conducted | ||
| * @param from - payer | ||
| * @param to - receiver | ||
| * @param value - transfer amount | ||
| * @param transactionID | ||
| * @param transactionID - an id that will be passed back to the callback | ||
| * @param callbackContract - a contract implementing the method afterTransfer(bool success, uint256 transactionID, string memory transactionData) | ||
| */ | ||
| function checkedTransferFrom(address from, address to, uint256 value, uint256 transactionID) external ; | ||
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| function transferFromAndCallback(address from, address to, uint256 value, uint256 transactionID, address callbackContract) external ; | ||
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| /* | ||
| * @dev Performs a multiple transfers from msg.sender balance and checks whether these transfers can be conducted | ||
| * @param to - receivers | ||
| * @param values - transfer amounts | ||
| * @param transactionID | ||
| * @param transactionID - an id that will be passed back to the callback | ||
| * @param callbackContract - a contract implementing the method afterTransfer(bool success, uint256 transactionID, string memory transactionData) | ||
| */ | ||
| function checkedBatchTransfer(address[] memory to, uint256[] memory values, uint256 transactionID ) external; | ||
| function transferBatchAndCallback(address[] memory to, uint256[] memory values, uint256 transactionID, address callbackContract) external; | ||
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| /* | ||
| * @dev Performs a multiple transfers between multiple addresses and checks whether these transfers can be conducted | ||
| * @param from - payers | ||
| * @param to - receivers | ||
| * @param value - transfer amounts | ||
| * @param transactionID | ||
| * @param values - transfer amounts | ||
| * @param transactionID - an id that will be passed back to the callback | ||
| * @param callbackContract - a contract implementing the method afterTransfer(bool success, uint256 transactionID, string memory transactionData) | ||
| */ | ||
| function checkedBatchTransferFrom(address[] memory from, address[] memory to, uint256[] memory values, uint256 transactionID ) external; | ||
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| function transferBatchFromAndCallback(address[] memory from, address[] memory to, uint256[] memory values, uint256 transactionID, address callbackContract) external; | ||
| } |
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