ERC-721
Source Code
Overview
Max Total Supply
0 SFS
Holders
7,526
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
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Contract Name:
FlowNFT
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { Strings } from "@openzeppelin/contracts/utils/Strings.sol";
import { IConstantFlowAgreementV1 } from "@superfluid-finance/ethereum-contracts/contracts/interfaces/agreements/IConstantFlowAgreementV1.sol";
import { ISuperfluid, ISuperToken } from "@superfluid-finance/ethereum-contracts/contracts/interfaces/superfluid/ISuperfluid.sol";
import { IConstantFlowAgreementHook } from "@superfluid-finance/ethereum-contracts/contracts/interfaces/agreements/IConstantFlowAgreementHook.sol";
import { ISuperfluidToken } from "@superfluid-finance/ethereum-contracts/contracts/interfaces/superfluid/ISuperfluid.sol";
/*
* NFT representing a flow that points to offchain data, created by CFAv1 hook or manual minting.
* The existence of a CFA flow doesn't guarantee the existence of a representing token.
* There's a mint method which allows anybody to retroactively mint a token for an existing flow.
*/
contract FlowNFT is IConstantFlowAgreementHook {
using Strings for uint256;
struct FlowData {
address token;
address sender;
address receiver;
uint64 startDate;
}
/// thrown by methods not available, e.g. transfer
error NOT_AVAILABLE();
/// thrown when attempting to mint an NFT which already exists
error ALREADY_MINTED();
/// thrown when looking up a token or flow which doesn't exist
error NOT_EXISTS();
/// thrown when trying to mint to the zero address
error ZERO_ADDRESS();
// thrown when trying to burn a token representing an ongoing flow
error FLOW_ONGOING();
event Transfer(address indexed from, address indexed to, uint256 indexed id);
string public name;
string public symbol;
string public constant baseUrl = "https://nft.superfluid.finance/cfa/v1/getmeta";
// incremented on every new mint and used as tokenId
uint256 public tokenCnt;
mapping(uint256 => FlowData) internal _flowDataById;
mapping(bytes32 => uint256) internal _idByFlowKey;
IConstantFlowAgreementV1 immutable internal _cfaV1;
constructor(address cfa_, string memory name_, string memory symbol_) {
name = name_;
symbol = symbol_;
_cfaV1 = IConstantFlowAgreementV1(cfa_);
}
/// Allows retroactive minting to flow receivers if minting wasn't done via the hook.
/// Can be triggered by anybody.
function mint(address token, address sender, address receiver) public returns(bool) {
int96 flowRate = _getFlowRate(token, sender, receiver);
if(flowRate > 0) {
_mint(token, sender, receiver, 0);
return true;
} else {
revert NOT_EXISTS();
}
}
/// Allows tokens not "covered" by an active flow to be burned
function burn(address token, address sender, address receiver) public returns(bool) {
// revert if no token exists
getTokenId(token, sender, receiver);
if(_getFlowRate(token, sender, receiver) == 0) {
_burn(token, sender, receiver);
return true;
} else {
revert FLOW_ONGOING();
}
}
/// returns the token id representing the given flow
/// reverts if no token exist
/// note that this method doesn't check if an actual flow currently exists for this params (flowrate != 0)
function getTokenId(address token, address sender, address receiver) public view returns(uint256 tokenId) {
bytes32 flowKey = keccak256(abi.encodePacked(
token,
sender,
receiver
));
tokenId = _idByFlowKey[flowKey];
if(tokenId == 0) revert NOT_EXISTS();
}
// ============= IConstantFlowAgreementHook interface =============
function onCreate(ISuperfluidToken token, CFAHookParams memory newFlowData) public override returns(bool) {
_mint(address(token), newFlowData.sender, newFlowData.receiver, uint64(block.timestamp));
return true;
}
function onUpdate(ISuperfluidToken /*token*/, CFAHookParams memory /*updatedFlowData*/, int96 /*oldFlowRate*/) public override pure returns(bool) {
return true;
}
function onDelete(ISuperfluidToken token, CFAHookParams memory updatedFlowData, int96 /*oldFlowRate*/) public override returns(bool) {
_burn(address(token), updatedFlowData.sender, updatedFlowData.receiver);
return true;
}
// ============= ERC721 interface =============
function ownerOf(uint256 id) public view virtual returns (address owner) {
owner = _flowDataById[id].receiver;
if(owner == address(0)) revert NOT_EXISTS();
}
/// note that we can't rely on the startDate as a flow may have been deleted and re-crated in the meantime
function tokenURI(uint256 id) public view returns (string memory) {
FlowData memory flowData = _flowDataById[id];
address receiver = ownerOf(id);
return string(abi.encodePacked(
baseUrl,
'?chain_id=', block.chainid.toString(),
'&token_address=', Strings.toHexString(uint256(uint160(flowData.token)), 20),
'&token_symbol=', ISuperToken(flowData.token).symbol(),
'&token_decimals=', uint256(ISuperToken(flowData.token).decimals()).toString(),
'&sender=', Strings.toHexString(uint256(uint160(flowData.sender)), 20),
'&receiver=', Strings.toHexString(uint256(uint160(receiver)), 20),
'&flowRate=',uint256(uint96(_getFlowRate(flowData.token, flowData.sender, receiver))).toString(),
flowData.startDate == 0 ? '' : '&start_date=',uint256(flowData.startDate).toString()
));
}
// always returns 1 in order to not waste storage
function balanceOf(address owner) public view virtual returns (uint256) {
if(owner == address(0)) revert ZERO_ADDRESS();
return 1;
}
// ERC165 Interface Detection
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
return
interfaceId == 0x01ffc9a7 || // Interface ID for ERC165
interfaceId == 0x80ac58cd || // Interface ID for ERC721
interfaceId == 0x5b5e139f; // Interface ID for ERC721Metadata
}
function approve(address /*spender*/, uint256 /*id*/) public pure {
revert NOT_AVAILABLE();
}
function setApprovalForAll(address /*operator*/, bool /*approved*/) public pure {
revert NOT_AVAILABLE();
}
function transferFrom(address /*from*/, address /*to*/, uint256 /*id*/) public pure {
revert NOT_AVAILABLE();
}
function safeTransferFrom(address /*from*/, address /*to*/, uint256 /*id*/) public pure {
revert NOT_AVAILABLE();
}
function safeTransferFrom(address /*from*/, address /*to*/, uint256 /*id*/, bytes calldata /*data*/) public pure {
revert NOT_AVAILABLE();
}
// ============= private interface =============
function _mint(address token, address sender, address receiver, uint64 startDate) internal {
if(receiver == address(0)) revert ZERO_ADDRESS();
uint256 id = ++tokenCnt;
bytes32 flowKey = keccak256(abi.encodePacked(
token,
sender,
receiver
));
if(_idByFlowKey[flowKey] != 0) revert ALREADY_MINTED();
if(_flowDataById[id].receiver != address(0)) revert ALREADY_MINTED();
_flowDataById[id] = FlowData(token, sender, receiver, startDate);
_idByFlowKey[flowKey] = id;
emit Transfer(address(0), receiver, id);
}
function _burn(address token, address sender, address receiver) internal {
bytes32 flowKey = keccak256(abi.encodePacked(token, sender, receiver));
uint256 id = _idByFlowKey[flowKey];
if(id == 0) revert NOT_EXISTS();
delete _flowDataById[id];
delete _idByFlowKey[flowKey];
emit Transfer(receiver, address(0), id);
}
function _getFlowRate(address token, address sender, address receiver) internal view returns(int96 flowRate) {
(,flowRate,,) = _cfaV1.getFlow(ISuperToken(token), sender, receiver);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperfluidGovernance } from "./ISuperfluidGovernance.sol";
import { ISuperfluidToken } from "./ISuperfluidToken.sol";
import { ISuperToken } from "./ISuperToken.sol";
import { ISuperTokenFactory } from "./ISuperTokenFactory.sol";
import { ISuperAgreement } from "./ISuperAgreement.sol";
import { ISuperApp } from "./ISuperApp.sol";
import {
BatchOperation,
ContextDefinitions,
FlowOperatorDefinitions,
SuperAppDefinitions,
SuperfluidErrors,
SuperfluidGovernanceConfigs
} from "./Definitions.sol";
import { TokenInfo } from "../tokens/TokenInfo.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IERC777 } from "@openzeppelin/contracts/token/ERC777/IERC777.sol";
/**
* @title Host interface
* @author Superfluid
* @notice This is the central contract of the system where super agreement, super app
* and super token features are connected.
*
* The Superfluid host contract is also the entry point for the protocol users,
* where batch call and meta transaction are provided for UX improvements.
*
*/
interface ISuperfluid {
/**************************************************************************
* Errors
*************************************************************************/
// Superfluid Custom Errors
error HOST_AGREEMENT_CALLBACK_IS_NOT_ACTION();
error HOST_CANNOT_DOWNGRADE_TO_NON_UPGRADEABLE();
error HOST_CALL_AGREEMENT_WITH_CTX_FROM_WRONG_ADDRESS();
error HOST_CALL_APP_ACTION_WITH_CTX_FROM_WRONG_ADDRESS();
error HOST_INVALID_CONFIG_WORD();
error HOST_MAX_256_AGREEMENTS();
error HOST_NON_UPGRADEABLE();
error HOST_NON_ZERO_LENGTH_PLACEHOLDER_CTX();
error HOST_ONLY_GOVERNANCE();
error HOST_UNKNOWN_BATCH_CALL_OPERATION_TYPE();
// App Related Custom Errors
error HOST_INVALID_OR_EXPIRED_SUPER_APP_REGISTRATION_KEY();
error HOST_NOT_A_SUPER_APP();
error HOST_NO_APP_REGISTRATION_PERMISSIONS();
error HOST_RECEIVER_IS_NOT_SUPER_APP();
error HOST_SENDER_IS_NOT_SUPER_APP();
error HOST_SOURCE_APP_NEEDS_HIGHER_APP_LEVEL();
error HOST_SUPER_APP_IS_JAILED();
error HOST_SUPER_APP_ALREADY_REGISTERED();
error HOST_UNAUTHORIZED_SUPER_APP_FACTORY();
/**************************************************************************
* Time
*
* > The Oracle: You have the sight now, Neo. You are looking at the world without time.
* > Neo: Then why can't I see what happens to her?
* > The Oracle: We can never see past the choices we don't understand.
* > - The Oracle and Neo conversing about the future of Trinity and the effects of Neo's choices
*************************************************************************/
function getNow() external view returns (uint256);
/**************************************************************************
* Governance
*************************************************************************/
/**
* @dev Get the current governance address of the Superfluid host
*/
function getGovernance() external view returns(ISuperfluidGovernance governance);
/**
* @dev Replace the current governance with a new one
*/
function replaceGovernance(ISuperfluidGovernance newGov) external;
/**
* @dev Governance replaced event
* @param oldGov Address of the old governance contract
* @param newGov Address of the new governance contract
*/
event GovernanceReplaced(ISuperfluidGovernance oldGov, ISuperfluidGovernance newGov);
/**************************************************************************
* Agreement Whitelisting
*************************************************************************/
/**
* @dev Register a new agreement class to the system
* @param agreementClassLogic Initial agreement class code
*
* @custom:modifiers
* - onlyGovernance
*/
function registerAgreementClass(ISuperAgreement agreementClassLogic) external;
/**
* @notice Agreement class registered event
* @dev agreementType is the keccak256 hash of: "org.superfluid-finance.agreements.<AGREEMENT_NAME>.<VERSION>"
* @param agreementType The agreement type registered
* @param code Address of the new agreement
*/
event AgreementClassRegistered(bytes32 agreementType, address code);
/**
* @dev Update code of an agreement class
* @param agreementClassLogic New code for the agreement class
*
* @custom:modifiers
* - onlyGovernance
*/
function updateAgreementClass(ISuperAgreement agreementClassLogic) external;
/**
* @notice Agreement class updated event
* @dev agreementType is the keccak256 hash of: "org.superfluid-finance.agreements.<AGREEMENT_NAME>.<VERSION>"
* @param agreementType The agreement type updated
* @param code Address of the new agreement
*/
event AgreementClassUpdated(bytes32 agreementType, address code);
/**
* @notice Check if the agreement type is whitelisted
* @dev agreementType is the keccak256 hash of: "org.superfluid-finance.agreements.<AGREEMENT_NAME>.<VERSION>"
*/
function isAgreementTypeListed(bytes32 agreementType) external view returns(bool yes);
/**
* @dev Check if the agreement class is whitelisted
*/
function isAgreementClassListed(ISuperAgreement agreementClass) external view returns(bool yes);
/**
* @notice Get agreement class
* @dev agreementType is the keccak256 hash of: "org.superfluid-finance.agreements.<AGREEMENT_NAME>.<VERSION>"
*/
function getAgreementClass(bytes32 agreementType) external view returns(ISuperAgreement agreementClass);
/**
* @dev Map list of the agreement classes using a bitmap
* @param bitmap Agreement class bitmap
*/
function mapAgreementClasses(uint256 bitmap)
external view
returns (ISuperAgreement[] memory agreementClasses);
/**
* @notice Create a new bitmask by adding a agreement class to it
* @dev agreementType is the keccak256 hash of: "org.superfluid-finance.agreements.<AGREEMENT_NAME>.<VERSION>"
* @param bitmap Agreement class bitmap
*/
function addToAgreementClassesBitmap(uint256 bitmap, bytes32 agreementType)
external view
returns (uint256 newBitmap);
/**
* @notice Create a new bitmask by removing a agreement class from it
* @dev agreementType is the keccak256 hash of: "org.superfluid-finance.agreements.<AGREEMENT_NAME>.<VERSION>"
* @param bitmap Agreement class bitmap
*/
function removeFromAgreementClassesBitmap(uint256 bitmap, bytes32 agreementType)
external view
returns (uint256 newBitmap);
/**************************************************************************
* Super Token Factory
**************************************************************************/
/**
* @dev Get the super token factory
* @return factory The factory
*/
function getSuperTokenFactory() external view returns (ISuperTokenFactory factory);
/**
* @dev Get the super token factory logic (applicable to upgradable deployment)
* @return logic The factory logic
*/
function getSuperTokenFactoryLogic() external view returns (address logic);
/**
* @dev Update super token factory
* @param newFactory New factory logic
*/
function updateSuperTokenFactory(ISuperTokenFactory newFactory) external;
/**
* @dev SuperToken factory updated event
* @param newFactory Address of the new factory
*/
event SuperTokenFactoryUpdated(ISuperTokenFactory newFactory);
/**
* @notice Update the super token logic to the latest
* @dev Refer to ISuperTokenFactory.Upgradability for expected behaviours
*/
function updateSuperTokenLogic(ISuperToken token) external;
/**
* @dev SuperToken logic updated event
* @param code Address of the new SuperToken logic
*/
event SuperTokenLogicUpdated(ISuperToken indexed token, address code);
/**************************************************************************
* App Registry
*************************************************************************/
/**
* @dev Message sender (must be a contract) declares itself as a super app.
* @custom:deprecated you should use `registerAppWithKey` or `registerAppByFactory` instead,
* because app registration is currently governance permissioned on mainnets.
* @param configWord The super app manifest configuration, flags are defined in
* `SuperAppDefinitions`
*/
function registerApp(uint256 configWord) external;
/**
* @dev App registered event
* @param app Address of jailed app
*/
event AppRegistered(ISuperApp indexed app);
/**
* @dev Message sender declares itself as a super app.
* @param configWord The super app manifest configuration, flags are defined in `SuperAppDefinitions`
* @param registrationKey The registration key issued by the governance, needed to register on a mainnet.
* @notice See https://github.com/superfluid-finance/protocol-monorepo/wiki/Super-App-White-listing-Guide
* On testnets or in dev environment, a placeholder (e.g. empty string) can be used.
* While the message sender must be the super app itself, the transaction sender (tx.origin)
* must be the deployer account the registration key was issued for.
*/
function registerAppWithKey(uint256 configWord, string calldata registrationKey) external;
/**
* @dev Message sender (must be a contract) declares app as a super app
* @param configWord The super app manifest configuration, flags are defined in `SuperAppDefinitions`
* @notice On mainnet deployments, only factory contracts pre-authorized by governance can use this.
* See https://github.com/superfluid-finance/protocol-monorepo/wiki/Super-App-White-listing-Guide
*/
function registerAppByFactory(ISuperApp app, uint256 configWord) external;
/**
* @dev Query if the app is registered
* @param app Super app address
*/
function isApp(ISuperApp app) external view returns(bool);
/**
* @dev Query app callbacklevel
* @param app Super app address
*/
function getAppCallbackLevel(ISuperApp app) external view returns(uint8 appCallbackLevel);
/**
* @dev Get the manifest of the super app
* @param app Super app address
*/
function getAppManifest(
ISuperApp app
)
external view
returns (
bool isSuperApp,
bool isJailed,
uint256 noopMask
);
/**
* @dev Query if the app has been jailed
* @param app Super app address
*/
function isAppJailed(ISuperApp app) external view returns (bool isJail);
/**
* @dev Whitelist the target app for app composition for the source app (msg.sender)
* @param targetApp The target super app address
*/
function allowCompositeApp(ISuperApp targetApp) external;
/**
* @dev Query if source app is allowed to call the target app as downstream app
* @param app Super app address
* @param targetApp The target super app address
*/
function isCompositeAppAllowed(
ISuperApp app,
ISuperApp targetApp
)
external view
returns (bool isAppAllowed);
/**************************************************************************
* Agreement Framework
*
* Agreements use these function to trigger super app callbacks, updates
* app credit and charge gas fees.
*
* These functions can only be called by registered agreements.
*************************************************************************/
/**
* @dev (For agreements) StaticCall the app before callback
* @param app The super app.
* @param callData The call data sending to the super app.
* @param isTermination Is it a termination callback?
* @param ctx Current ctx, it will be validated.
* @return cbdata Data returned from the callback.
*/
function callAppBeforeCallback(
ISuperApp app,
bytes calldata callData,
bool isTermination,
bytes calldata ctx
)
external
// onlyAgreement
// assertValidCtx(ctx)
returns(bytes memory cbdata);
/**
* @dev (For agreements) Call the app after callback
* @param app The super app.
* @param callData The call data sending to the super app.
* @param isTermination Is it a termination callback?
* @param ctx Current ctx, it will be validated.
* @return newCtx The current context of the transaction.
*/
function callAppAfterCallback(
ISuperApp app,
bytes calldata callData,
bool isTermination,
bytes calldata ctx
)
external
// onlyAgreement
// assertValidCtx(ctx)
returns(bytes memory newCtx);
/**
* @dev (For agreements) Create a new callback stack
* @param ctx The current ctx, it will be validated.
* @param app The super app.
* @param appCreditGranted App credit granted so far.
* @param appCreditUsed App credit used so far.
* @return newCtx The current context of the transaction.
*/
function appCallbackPush(
bytes calldata ctx,
ISuperApp app,
uint256 appCreditGranted,
int256 appCreditUsed,
ISuperfluidToken appCreditToken
)
external
// onlyAgreement
// assertValidCtx(ctx)
returns (bytes memory newCtx);
/**
* @dev (For agreements) Pop from the current app callback stack
* @param ctx The ctx that was pushed before the callback stack.
* @param appCreditUsedDelta App credit used by the app.
* @return newCtx The current context of the transaction.
*
* @custom:security
* - Here we cannot do assertValidCtx(ctx), since we do not really save the stack in memory.
* - Hence there is still implicit trust that the agreement handles the callback push/pop pair correctly.
*/
function appCallbackPop(
bytes calldata ctx,
int256 appCreditUsedDelta
)
external
// onlyAgreement
returns (bytes memory newCtx);
/**
* @dev (For agreements) Use app credit.
* @param ctx The current ctx, it will be validated.
* @param appCreditUsedMore See app credit for more details.
* @return newCtx The current context of the transaction.
*/
function ctxUseCredit(
bytes calldata ctx,
int256 appCreditUsedMore
)
external
// onlyAgreement
// assertValidCtx(ctx)
returns (bytes memory newCtx);
/**
* @dev (For agreements) Jail the app.
* @param app The super app.
* @param reason Jail reason code.
* @return newCtx The current context of the transaction.
*/
function jailApp(
bytes calldata ctx,
ISuperApp app,
uint256 reason
)
external
// onlyAgreement
// assertValidCtx(ctx)
returns (bytes memory newCtx);
/**
* @dev Jail event for the app
* @param app Address of jailed app
* @param reason Reason the app is jailed (see Definitions.sol for the full list)
*/
event Jail(ISuperApp indexed app, uint256 reason);
/**************************************************************************
* Contextless Call Proxies
*
* NOTE: For EOAs or non-app contracts, they are the entry points for interacting
* with agreements or apps.
*
* NOTE: The contextual call data should be generated using
* abi.encodeWithSelector. The context parameter should be set to "0x",
* an empty bytes array as a placeholder to be replaced by the host
* contract.
*************************************************************************/
/**
* @dev Call agreement function
* @param agreementClass The agreement address you are calling
* @param callData The contextual call data with placeholder ctx
* @param userData Extra user data being sent to the super app callbacks
*/
function callAgreement(
ISuperAgreement agreementClass,
bytes calldata callData,
bytes calldata userData
)
external
//cleanCtx
//isAgreement(agreementClass)
returns(bytes memory returnedData);
/**
* @notice Call app action
* @dev Main use case is calling app action in a batch call via the host
* @param callData The contextual call data
*
* @custom:note See "Contextless Call Proxies" above for more about contextual call data.
*/
function callAppAction(
ISuperApp app,
bytes calldata callData
)
external
//cleanCtx
//isAppActive(app)
//isValidAppAction(callData)
returns(bytes memory returnedData);
/**************************************************************************
* Contextual Call Proxies and Context Utilities
*
* For apps, they must use context they receive to interact with
* agreements or apps.
*
* The context changes must be saved and returned by the apps in their
* callbacks always, any modification to the context will be detected and
* the violating app will be jailed.
*************************************************************************/
/**
* @dev Context Struct
*
* @custom:note on backward compatibility:
* - Non-dynamic fields are padded to 32bytes and packed
* - Dynamic fields are referenced through a 32bytes offset to their "parents" field (or root)
* - The order of the fields hence should not be rearranged in order to be backward compatible:
* - non-dynamic fields will be parsed at the same memory location,
* - and dynamic fields will simply have a greater offset than it was.
* - We cannot change the structure of the Context struct because of ABI compatibility requirements
*/
struct Context {
//
// Call context
//
// app callback level
uint8 appCallbackLevel;
// type of call
uint8 callType;
// the system timestamp
uint256 timestamp;
// The intended message sender for the call
address msgSender;
//
// Callback context
//
// For callbacks it is used to know which agreement function selector is called
bytes4 agreementSelector;
// User provided data for app callbacks
bytes userData;
//
// App context
//
// app credit granted
uint256 appCreditGranted;
// app credit wanted by the app callback
uint256 appCreditWantedDeprecated;
// app credit used, allowing negative values over a callback session
// the appCreditUsed value over a callback sessions is calculated with:
// existing flow data owed deposit + sum of the callback agreements
// deposit deltas
// the final value used to modify the state is determined by the
// _adjustNewAppCreditUsed function (in AgreementLibrary.sol) which takes
// the appCreditUsed value reached in the callback session and the app
// credit granted
int256 appCreditUsed;
// app address
address appAddress;
// app credit in super token
ISuperfluidToken appCreditToken;
}
function callAgreementWithContext(
ISuperAgreement agreementClass,
bytes calldata callData,
bytes calldata userData,
bytes calldata ctx
)
external
// requireValidCtx(ctx)
// onlyAgreement(agreementClass)
returns (bytes memory newCtx, bytes memory returnedData);
function callAppActionWithContext(
ISuperApp app,
bytes calldata callData,
bytes calldata ctx
)
external
// requireValidCtx(ctx)
// isAppActive(app)
returns (bytes memory newCtx);
function decodeCtx(bytes memory ctx)
external pure
returns (Context memory context);
function isCtxValid(bytes calldata ctx) external view returns (bool);
/**************************************************************************
* Batch call
**************************************************************************/
/**
* @dev Batch operation data
*/
struct Operation {
// Operation type. Defined in BatchOperation (Definitions.sol)
uint32 operationType;
// Operation target
address target;
// Data specific to the operation
bytes data;
}
/**
* @dev Batch call function
* @param operations Array of batch operations
*/
function batchCall(Operation[] calldata operations) external;
/**
* @dev Batch call function for trusted forwarders (EIP-2771)
* @param operations Array of batch operations
*/
function forwardBatchCall(Operation[] calldata operations) external;
/**************************************************************************
* Function modifiers for access control and parameter validations
*
* While they cannot be explicitly stated in function definitions, they are
* listed in function definition comments instead for clarity.
*
* TODO: turning these off because solidity-coverage doesn't like it
*************************************************************************/
/* /// @dev The current superfluid context is clean.
modifier cleanCtx() virtual;
/// @dev Require the ctx being valid.
modifier requireValidCtx(bytes memory ctx) virtual;
/// @dev Assert the ctx being valid.
modifier assertValidCtx(bytes memory ctx) virtual;
/// @dev The agreement is a listed agreement.
modifier isAgreement(ISuperAgreement agreementClass) virtual;
// onlyGovernance
/// @dev The msg.sender must be a listed agreement.
modifier onlyAgreement() virtual;
/// @dev The app is registered and not jailed.
modifier isAppActive(ISuperApp app) virtual; */
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperAgreement } from "../superfluid/ISuperAgreement.sol";
import { ISuperfluidToken } from "../superfluid/ISuperfluidToken.sol";
import { SuperfluidErrors } from "../superfluid/Definitions.sol";
/**
* @title Constant Flow Agreement interface
* @author Superfluid
*/
abstract contract IConstantFlowAgreementV1 is ISuperAgreement {
/**************************************************************************
* Errors
*************************************************************************/
error CFA_ACL_NO_SENDER_CREATE();
error CFA_ACL_NO_SENDER_UPDATE();
error CFA_ACL_OPERATOR_NO_CREATE_PERMISSIONS();
error CFA_ACL_OPERATOR_NO_UPDATE_PERMISSIONS();
error CFA_ACL_OPERATOR_NO_DELETE_PERMISSIONS();
error CFA_ACL_FLOW_RATE_ALLOWANCE_EXCEEDED();
error CFA_ACL_UNCLEAN_PERMISSIONS();
error CFA_ACL_NO_SENDER_FLOW_OPERATOR();
error CFA_ACL_NO_NEGATIVE_ALLOWANCE();
error CFA_DEPOSIT_TOO_BIG();
error CFA_FLOW_RATE_TOO_BIG();
error CFA_NON_CRITICAL_SENDER();
error CFA_INVALID_FLOW_RATE();
error CFA_NO_SELF_FLOW();
/// @dev ISuperAgreement.agreementType implementation
function agreementType() external override pure returns (bytes32) {
return keccak256("org.superfluid-finance.agreements.ConstantFlowAgreement.v1");
}
/**
* @notice Get the maximum flow rate allowed with the deposit
* @dev The deposit is clipped and rounded down
* @param deposit Deposit amount used for creating the flow
* @return flowRate The maximum flow rate
*/
function getMaximumFlowRateFromDeposit(
ISuperfluidToken token,
uint256 deposit)
external view virtual
returns (int96 flowRate);
/**
* @notice Get the deposit required for creating the flow
* @dev Calculates the deposit based on the liquidationPeriod and flowRate
* @param flowRate Flow rate to be tested
* @return deposit The deposit amount based on flowRate and liquidationPeriod
* @custom:note
* - if calculated deposit (flowRate * liquidationPeriod) is less
* than the minimum deposit, we use the minimum deposit otherwise
* we use the calculated deposit
*/
function getDepositRequiredForFlowRate(
ISuperfluidToken token,
int96 flowRate)
external view virtual
returns (uint256 deposit);
/**
* @dev Returns whether it is the patrician period based on host.getNow()
* @param account The account we are interested in
* @return isCurrentlyPatricianPeriod Whether it is currently the patrician period dictated by governance
* @return timestamp The value of host.getNow()
*/
function isPatricianPeriodNow(
ISuperfluidToken token,
address account)
external view virtual
returns (bool isCurrentlyPatricianPeriod, uint256 timestamp);
/**
* @dev Returns whether it is the patrician period based on timestamp
* @param account The account we are interested in
* @param timestamp The timestamp we are interested in observing the result of isPatricianPeriod
* @return bool Whether it is currently the patrician period dictated by governance
*/
function isPatricianPeriod(
ISuperfluidToken token,
address account,
uint256 timestamp
)
public view virtual
returns (bool);
/**
* @dev msgSender from `ctx` updates permissions for the `flowOperator` with `flowRateAllowance`
* @param token Super token address
* @param flowOperator The permission grantee address
* @param permissions A bitmask representation of the granted permissions
* @param flowRateAllowance The flow rate allowance the `flowOperator` is granted (only goes down)
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
*/
function updateFlowOperatorPermissions(
ISuperfluidToken token,
address flowOperator,
uint8 permissions,
int96 flowRateAllowance,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @dev msgSender from `ctx` grants `flowOperator` all permissions with flowRateAllowance as type(int96).max
* @param token Super token address
* @param flowOperator The permission grantee address
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
*/
function authorizeFlowOperatorWithFullControl(
ISuperfluidToken token,
address flowOperator,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @notice msgSender from `ctx` revokes `flowOperator` create/update/delete permissions
* @dev `permissions` and `flowRateAllowance` will both be set to 0
* @param token Super token address
* @param flowOperator The permission grantee address
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
*/
function revokeFlowOperatorWithFullControl(
ISuperfluidToken token,
address flowOperator,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @notice Get the permissions of a flow operator between `sender` and `flowOperator` for `token`
* @param token Super token address
* @param sender The permission granter address
* @param flowOperator The permission grantee address
* @return flowOperatorId The keccak256 hash of encoded string "flowOperator", sender and flowOperator
* @return permissions A bitmask representation of the granted permissions
* @return flowRateAllowance The flow rate allowance the `flowOperator` is granted (only goes down)
*/
function getFlowOperatorData(
ISuperfluidToken token,
address sender,
address flowOperator
)
public view virtual
returns (
bytes32 flowOperatorId,
uint8 permissions,
int96 flowRateAllowance
);
/**
* @notice Get flow operator using flowOperatorId
* @param token Super token address
* @param flowOperatorId The keccak256 hash of encoded string "flowOperator", sender and flowOperator
* @return permissions A bitmask representation of the granted permissions
* @return flowRateAllowance The flow rate allowance the `flowOperator` is granted (only goes down)
*/
function getFlowOperatorDataByID(
ISuperfluidToken token,
bytes32 flowOperatorId
)
external view virtual
returns (
uint8 permissions,
int96 flowRateAllowance
);
/**
* @notice Create a flow betwen ctx.msgSender and receiver
* @dev flowId (agreementId) is the keccak256 hash of encoded sender and receiver
* @param token Super token address
* @param receiver Flow receiver address
* @param flowRate New flow rate in amount per second
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
*
* @custom:callbacks
* - AgreementCreated
* - agreementId - can be used in getFlowByID
* - agreementData - abi.encode(address flowSender, address flowReceiver)
*
* @custom:note
* - A deposit is taken as safety margin for the solvency agents
* - A extra gas fee may be taken to pay for solvency agent liquidations
*/
function createFlow(
ISuperfluidToken token,
address receiver,
int96 flowRate,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @notice Create a flow between sender and receiver
* @dev A flow created by an approved flow operator (see above for details on callbacks)
* @param token Super token address
* @param sender Flow sender address (has granted permissions)
* @param receiver Flow receiver address
* @param flowRate New flow rate in amount per second
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
*/
function createFlowByOperator(
ISuperfluidToken token,
address sender,
address receiver,
int96 flowRate,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @notice Update the flow rate between ctx.msgSender and receiver
* @dev flowId (agreementId) is the keccak256 hash of encoded sender and receiver
* @param token Super token address
* @param receiver Flow receiver address
* @param flowRate New flow rate in amount per second
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
*
* @custom:callbacks
* - AgreementUpdated
* - agreementId - can be used in getFlowByID
* - agreementData - abi.encode(address flowSender, address flowReceiver)
*
* @custom:note
* - Only the flow sender may update the flow rate
* - Even if the flow rate is zero, the flow is not deleted
* from the system
* - Deposit amount will be adjusted accordingly
* - No new gas fee is charged
*/
function updateFlow(
ISuperfluidToken token,
address receiver,
int96 flowRate,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @notice Update a flow between sender and receiver
* @dev A flow updated by an approved flow operator (see above for details on callbacks)
* @param token Super token address
* @param sender Flow sender address (has granted permissions)
* @param receiver Flow receiver address
* @param flowRate New flow rate in amount per second
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
*/
function updateFlowByOperator(
ISuperfluidToken token,
address sender,
address receiver,
int96 flowRate,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @dev Get the flow data between `sender` and `receiver` of `token`
* @param token Super token address
* @param sender Flow receiver
* @param receiver Flow sender
* @return timestamp Timestamp of when the flow is updated
* @return flowRate The flow rate
* @return deposit The amount of deposit the flow
* @return owedDeposit The amount of owed deposit of the flow
*/
function getFlow(
ISuperfluidToken token,
address sender,
address receiver
)
external view virtual
returns (
uint256 timestamp,
int96 flowRate,
uint256 deposit,
uint256 owedDeposit
);
/**
* @notice Get flow data using agreementId
* @dev flowId (agreementId) is the keccak256 hash of encoded sender and receiver
* @param token Super token address
* @param agreementId The agreement ID
* @return timestamp Timestamp of when the flow is updated
* @return flowRate The flow rate
* @return deposit The deposit amount of the flow
* @return owedDeposit The owed deposit amount of the flow
*/
function getFlowByID(
ISuperfluidToken token,
bytes32 agreementId
)
external view virtual
returns (
uint256 timestamp,
int96 flowRate,
uint256 deposit,
uint256 owedDeposit
);
/**
* @dev Get the aggregated flow info of the account
* @param token Super token address
* @param account Account for the query
* @return timestamp Timestamp of when a flow was last updated for account
* @return flowRate The net flow rate of token for account
* @return deposit The sum of all deposits for account's flows
* @return owedDeposit The sum of all owed deposits for account's flows
*/
function getAccountFlowInfo(
ISuperfluidToken token,
address account
)
external view virtual
returns (
uint256 timestamp,
int96 flowRate,
uint256 deposit,
uint256 owedDeposit);
/**
* @dev Get the net flow rate of the account
* @param token Super token address
* @param account Account for the query
* @return flowRate Net flow rate
*/
function getNetFlow(
ISuperfluidToken token,
address account
)
external view virtual
returns (int96 flowRate);
/**
* @notice Delete the flow between sender and receiver
* @dev flowId (agreementId) is the keccak256 hash of encoded sender and receiver
* @param token Super token address
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
* @param receiver Flow receiver address
*
* @custom:callbacks
* - AgreementTerminated
* - agreementId - can be used in getFlowByID
* - agreementData - abi.encode(address flowSender, address flowReceiver)
*
* @custom:note
* - Both flow sender and receiver may delete the flow
* - If Sender account is insolvent or in critical state, a solvency agent may
* also terminate the agreement
* - Gas fee may be returned to the sender
*/
function deleteFlow(
ISuperfluidToken token,
address sender,
address receiver,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @notice Delete the flow between sender and receiver
* @dev A flow deleted by an approved flow operator (see above for details on callbacks)
* @param token Super token address
* @param ctx Context bytes (see ISuperfluid.sol for Context struct)
* @param receiver Flow receiver address
*/
function deleteFlowByOperator(
ISuperfluidToken token,
address sender,
address receiver,
bytes calldata ctx
)
external virtual
returns(bytes memory newCtx);
/**
* @dev Flow operator updated event
* @param token Super token address
* @param sender Flow sender address
* @param flowOperator Flow operator address
* @param permissions Octo bitmask representation of permissions
* @param flowRateAllowance The flow rate allowance the `flowOperator` is granted (only goes down)
*/
event FlowOperatorUpdated(
ISuperfluidToken indexed token,
address indexed sender,
address indexed flowOperator,
uint8 permissions,
int96 flowRateAllowance
);
/**
* @dev Flow updated event
* @param token Super token address
* @param sender Flow sender address
* @param receiver Flow recipient address
* @param flowRate Flow rate in amount per second for this flow
* @param totalSenderFlowRate Total flow rate in amount per second for the sender
* @param totalReceiverFlowRate Total flow rate in amount per second for the receiver
* @param userData The user provided data
*
*/
event FlowUpdated(
ISuperfluidToken indexed token,
address indexed sender,
address indexed receiver,
int96 flowRate,
int256 totalSenderFlowRate,
int256 totalReceiverFlowRate,
bytes userData
);
/**
* @dev Flow updated extension event
* @param flowOperator Flow operator address - the Context.msgSender
* @param deposit The deposit amount for the stream
*/
event FlowUpdatedExtension(
address indexed flowOperator,
uint256 deposit
);
}// SPDX-License-Identifier: AGPLv3
pragma solidity ^0.8.0;
import { ISuperfluidToken } from "../superfluid/ISuperfluidToken.sol";
/// @title IConstantFlowAgreementHook interface
/// @author Superfluid
/// @notice An interface for the functions needed by a CFA hook contract
/// @dev The contract that implements this interface MUST only allow the CFA contract to call it
interface IConstantFlowAgreementHook {
struct CFAHookParams {
address sender;
address receiver;
address flowOperator;
int96 flowRate;
}
/// @notice A hook which executes on stream creation if the hook contract is set in the CFA
/// @dev This should be implemented with an onlyCFA modifier, so that only the CFA can call the function
/// @param token the streamed super token
/// @param newFlowData the new flow data taken by the hook
/// @return bool
function onCreate(ISuperfluidToken token, CFAHookParams memory newFlowData)
external
returns (bool);
/// @notice A hook which executes on stream update if the hook contract is set in the CFA
/// @dev This should be implemented with an onlyCFA modifier, so that only the CFA can call the function
/// @param token the streamed super token
/// @param newFlowData the new flow data taken by the hook
/// @param oldFlowRate previous flowrate
/// @return bool
function onUpdate(
ISuperfluidToken token,
CFAHookParams memory newFlowData,
int96 oldFlowRate
) external returns (bool);
/// @notice A hook which executes on stream deletion if the hook contract is set in the CFA
/// @dev This should be implemented with an onlyCFA modifier, so that only the CFA can call the function
/// @param token the streamed super token
/// @param newFlowData the new flow data taken by the hook
/// @param oldFlowRate previous flowrate
/// @return bool
function onDelete(
ISuperfluidToken token,
CFAHookParams memory newFlowData,
int96 oldFlowRate
) external returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC777/IERC777.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC777Token standard as defined in the EIP.
*
* This contract uses the
* https://eips.ethereum.org/EIPS/eip-1820[ERC1820 registry standard] to let
* token holders and recipients react to token movements by using setting implementers
* for the associated interfaces in said registry. See {IERC1820Registry} and
* {ERC1820Implementer}.
*/
interface IERC777 {
/**
* @dev Emitted when `amount` tokens are created by `operator` and assigned to `to`.
*
* Note that some additional user `data` and `operatorData` can be logged in the event.
*/
event Minted(address indexed operator, address indexed to, uint256 amount, bytes data, bytes operatorData);
/**
* @dev Emitted when `operator` destroys `amount` tokens from `account`.
*
* Note that some additional user `data` and `operatorData` can be logged in the event.
*/
event Burned(address indexed operator, address indexed from, uint256 amount, bytes data, bytes operatorData);
/**
* @dev Emitted when `operator` is made operator for `tokenHolder`
*/
event AuthorizedOperator(address indexed operator, address indexed tokenHolder);
/**
* @dev Emitted when `operator` is revoked its operator status for `tokenHolder`
*/
event RevokedOperator(address indexed operator, address indexed tokenHolder);
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the smallest part of the token that is not divisible. This
* means all token operations (creation, movement and destruction) must have
* amounts that are a multiple of this number.
*
* For most token contracts, this value will equal 1.
*/
function granularity() external view returns (uint256);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by an account (`owner`).
*/
function balanceOf(address owner) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* If send or receive hooks are registered for the caller and `recipient`,
* the corresponding functions will be called with `data` and empty
* `operatorData`. See {IERC777Sender} and {IERC777Recipient}.
*
* Emits a {Sent} event.
*
* Requirements
*
* - the caller must have at least `amount` tokens.
* - `recipient` cannot be the zero address.
* - if `recipient` is a contract, it must implement the {IERC777Recipient}
* interface.
*/
function send(
address recipient,
uint256 amount,
bytes calldata data
) external;
/**
* @dev Destroys `amount` tokens from the caller's account, reducing the
* total supply.
*
* If a send hook is registered for the caller, the corresponding function
* will be called with `data` and empty `operatorData`. See {IERC777Sender}.
*
* Emits a {Burned} event.
*
* Requirements
*
* - the caller must have at least `amount` tokens.
*/
function burn(uint256 amount, bytes calldata data) external;
/**
* @dev Returns true if an account is an operator of `tokenHolder`.
* Operators can send and burn tokens on behalf of their owners. All
* accounts are their own operator.
*
* See {operatorSend} and {operatorBurn}.
*/
function isOperatorFor(address operator, address tokenHolder) external view returns (bool);
/**
* @dev Make an account an operator of the caller.
*
* See {isOperatorFor}.
*
* Emits an {AuthorizedOperator} event.
*
* Requirements
*
* - `operator` cannot be calling address.
*/
function authorizeOperator(address operator) external;
/**
* @dev Revoke an account's operator status for the caller.
*
* See {isOperatorFor} and {defaultOperators}.
*
* Emits a {RevokedOperator} event.
*
* Requirements
*
* - `operator` cannot be calling address.
*/
function revokeOperator(address operator) external;
/**
* @dev Returns the list of default operators. These accounts are operators
* for all token holders, even if {authorizeOperator} was never called on
* them.
*
* This list is immutable, but individual holders may revoke these via
* {revokeOperator}, in which case {isOperatorFor} will return false.
*/
function defaultOperators() external view returns (address[] memory);
/**
* @dev Moves `amount` tokens from `sender` to `recipient`. The caller must
* be an operator of `sender`.
*
* If send or receive hooks are registered for `sender` and `recipient`,
* the corresponding functions will be called with `data` and
* `operatorData`. See {IERC777Sender} and {IERC777Recipient}.
*
* Emits a {Sent} event.
*
* Requirements
*
* - `sender` cannot be the zero address.
* - `sender` must have at least `amount` tokens.
* - the caller must be an operator for `sender`.
* - `recipient` cannot be the zero address.
* - if `recipient` is a contract, it must implement the {IERC777Recipient}
* interface.
*/
function operatorSend(
address sender,
address recipient,
uint256 amount,
bytes calldata data,
bytes calldata operatorData
) external;
/**
* @dev Destroys `amount` tokens from `account`, reducing the total supply.
* The caller must be an operator of `account`.
*
* If a send hook is registered for `account`, the corresponding function
* will be called with `data` and `operatorData`. See {IERC777Sender}.
*
* Emits a {Burned} event.
*
* Requirements
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
* - the caller must be an operator for `account`.
*/
function operatorBurn(
address account,
uint256 amount,
bytes calldata data,
bytes calldata operatorData
) external;
event Sent(
address indexed operator,
address indexed from,
address indexed to,
uint256 amount,
bytes data,
bytes operatorData
);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperAgreement } from "./ISuperAgreement.sol";
import { ISuperToken } from "./ISuperToken.sol";
import { ISuperfluidToken } from "./ISuperfluidToken.sol";
import { ISuperfluid } from "./ISuperfluid.sol";
import { SuperfluidErrors } from "./Definitions.sol";
/**
* @title Superfluid governance interface
* @author Superfluid
*/
interface ISuperfluidGovernance {
/**************************************************************************
* Errors
*************************************************************************/
error SF_GOV_ARRAYS_NOT_SAME_LENGTH();
error SF_GOV_INVALID_LIQUIDATION_OR_PATRICIAN_PERIOD();
/**
* @dev Replace the current governance with a new governance
*/
function replaceGovernance(
ISuperfluid host,
address newGov) external;
/**
* @dev Register a new agreement class
*/
function registerAgreementClass(
ISuperfluid host,
address agreementClass) external;
/**
* @dev Update logics of the contracts
*
* @custom:note
* - Because they might have inter-dependencies, it is good to have one single function to update them all
*/
function updateContracts(
ISuperfluid host,
address hostNewLogic,
address[] calldata agreementClassNewLogics,
address superTokenFactoryNewLogic
) external;
/**
* @dev Update supertoken logic contract to the latest that is managed by the super token factory
*/
function batchUpdateSuperTokenLogic(
ISuperfluid host,
ISuperToken[] calldata tokens) external;
/**
* @dev Set configuration as address value
*/
function setConfig(
ISuperfluid host,
ISuperfluidToken superToken,
bytes32 key,
address value
) external;
/**
* @dev Set configuration as uint256 value
*/
function setConfig(
ISuperfluid host,
ISuperfluidToken superToken,
bytes32 key,
uint256 value
) external;
/**
* @dev Clear configuration
*/
function clearConfig(
ISuperfluid host,
ISuperfluidToken superToken,
bytes32 key
) external;
/**
* @dev Get configuration as address value
*/
function getConfigAsAddress(
ISuperfluid host,
ISuperfluidToken superToken,
bytes32 key) external view returns (address value);
/**
* @dev Get configuration as uint256 value
*/
function getConfigAsUint256(
ISuperfluid host,
ISuperfluidToken superToken,
bytes32 key) external view returns (uint256 value);
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperfluid } from "./ISuperfluid.sol";
import { ISuperfluidToken } from "./ISuperfluidToken.sol";
import { TokenInfo } from "../tokens/TokenInfo.sol";
import { IERC777 } from "@openzeppelin/contracts/token/ERC777/IERC777.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SuperfluidErrors } from "./Definitions.sol";
/**
* @title Super token (Superfluid Token + ERC20 + ERC777) interface
* @author Superfluid
*/
interface ISuperToken is ISuperfluidToken, TokenInfo, IERC20, IERC777 {
/**************************************************************************
* Errors
*************************************************************************/
error SUPER_TOKEN_CALLER_IS_NOT_OPERATOR_FOR_HOLDER();
error SUPER_TOKEN_NOT_ERC777_TOKENS_RECIPIENT();
error SUPER_TOKEN_INFLATIONARY_DEFLATIONARY_NOT_SUPPORTED();
error SUPER_TOKEN_NO_UNDERLYING_TOKEN();
error SUPER_TOKEN_ONLY_SELF();
/**
* @dev Initialize the contract
*/
function initialize(
IERC20 underlyingToken,
uint8 underlyingDecimals,
string calldata n,
string calldata s
) external;
/**************************************************************************
* TokenInfo & ERC777
*************************************************************************/
/**
* @dev Returns the name of the token.
*/
function name() external view override(IERC777, TokenInfo) returns (string memory);
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() external view override(IERC777, TokenInfo) returns (string memory);
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
* called.
*
* @custom:note SuperToken always uses 18 decimals.
*
* This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() external view override(TokenInfo) returns (uint8);
/**************************************************************************
* ERC20 & ERC777
*************************************************************************/
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() external view override(IERC777, IERC20) returns (uint256);
/**
* @dev Returns the amount of tokens owned by an account (`owner`).
*/
function balanceOf(address account) external view override(IERC777, IERC20) returns(uint256 balance);
/**************************************************************************
* ERC20
*************************************************************************/
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* @return Returns Success a boolean value indicating whether the operation succeeded.
*
* @custom:emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external override(IERC20) returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* @notice This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external override(IERC20) view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* @return Returns Success a boolean value indicating whether the operation succeeded.
*
* @custom:note Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* @custom:emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external override(IERC20) returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* @return Returns Success a boolean value indicating whether the operation succeeded.
*
* @custom:emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external override(IERC20) returns (bool);
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* @custom:emits an {Approval} event indicating the updated allowance.
*
* @custom:requirements
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) external returns (bool);
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* @custom:emits an {Approval} event indicating the updated allowance.
*
* @custom:requirements
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool);
/**************************************************************************
* ERC777
*************************************************************************/
/**
* @dev Returns the smallest part of the token that is not divisible. This
* means all token operations (creation, movement and destruction) must have
* amounts that are a multiple of this number.
*
* @custom:note For super token contracts, this value is always 1
*/
function granularity() external view override(IERC777) returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* @dev If send or receive hooks are registered for the caller and `recipient`,
* the corresponding functions will be called with `data` and empty
* `operatorData`. See {IERC777Sender} and {IERC777Recipient}.
*
* @custom:emits a {Sent} event.
*
* @custom:requirements
* - the caller must have at least `amount` tokens.
* - `recipient` cannot be the zero address.
* - if `recipient` is a contract, it must implement the {IERC777Recipient}
* interface.
*/
function send(address recipient, uint256 amount, bytes calldata data) external override(IERC777);
/**
* @dev Destroys `amount` tokens from the caller's account, reducing the
* total supply.
*
* If a send hook is registered for the caller, the corresponding function
* will be called with `data` and empty `operatorData`. See {IERC777Sender}.
*
* @custom:emits a {Burned} event.
*
* @custom:requirements
* - the caller must have at least `amount` tokens.
*/
function burn(uint256 amount, bytes calldata data) external override(IERC777);
/**
* @dev Returns true if an account is an operator of `tokenHolder`.
* Operators can send and burn tokens on behalf of their owners. All
* accounts are their own operator.
*
* See {operatorSend} and {operatorBurn}.
*/
function isOperatorFor(address operator, address tokenHolder) external override(IERC777) view returns (bool);
/**
* @dev Make an account an operator of the caller.
*
* See {isOperatorFor}.
*
* @custom:emits an {AuthorizedOperator} event.
*
* @custom:requirements
* - `operator` cannot be calling address.
*/
function authorizeOperator(address operator) external override(IERC777);
/**
* @dev Revoke an account's operator status for the caller.
*
* See {isOperatorFor} and {defaultOperators}.
*
* @custom:emits a {RevokedOperator} event.
*
* @custom:requirements
* - `operator` cannot be calling address.
*/
function revokeOperator(address operator) external override(IERC777);
/**
* @dev Returns the list of default operators. These accounts are operators
* for all token holders, even if {authorizeOperator} was never called on
* them.
*
* This list is immutable, but individual holders may revoke these via
* {revokeOperator}, in which case {isOperatorFor} will return false.
*/
function defaultOperators() external override(IERC777) view returns (address[] memory);
/**
* @dev Moves `amount` tokens from `sender` to `recipient`. The caller must
* be an operator of `sender`.
*
* If send or receive hooks are registered for `sender` and `recipient`,
* the corresponding functions will be called with `data` and
* `operatorData`. See {IERC777Sender} and {IERC777Recipient}.
*
* @custom:emits a {Sent} event.
*
* @custom:requirements
* - `sender` cannot be the zero address.
* - `sender` must have at least `amount` tokens.
* - the caller must be an operator for `sender`.
* - `recipient` cannot be the zero address.
* - if `recipient` is a contract, it must implement the {IERC777Recipient}
* interface.
*/
function operatorSend(
address sender,
address recipient,
uint256 amount,
bytes calldata data,
bytes calldata operatorData
) external override(IERC777);
/**
* @dev Destroys `amount` tokens from `account`, reducing the total supply.
* The caller must be an operator of `account`.
*
* If a send hook is registered for `account`, the corresponding function
* will be called with `data` and `operatorData`. See {IERC777Sender}.
*
* @custom:emits a {Burned} event.
*
* @custom:requirements
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
* - the caller must be an operator for `account`.
*/
function operatorBurn(
address account,
uint256 amount,
bytes calldata data,
bytes calldata operatorData
) external override(IERC777);
/**************************************************************************
* SuperToken custom token functions
*************************************************************************/
/**
* @dev Mint new tokens for the account
*
* @custom:modifiers
* - onlySelf
*/
function selfMint(
address account,
uint256 amount,
bytes memory userData
) external;
/**
* @dev Burn existing tokens for the account
*
* @custom:modifiers
* - onlySelf
*/
function selfBurn(
address account,
uint256 amount,
bytes memory userData
) external;
/**
* @dev Transfer `amount` tokens from the `sender` to `recipient`.
* If `spender` isn't the same as `sender`, checks if `spender` has allowance to
* spend tokens of `sender`.
*
* @custom:modifiers
* - onlySelf
*/
function selfTransferFrom(
address sender,
address spender,
address recipient,
uint256 amount
) external;
/**
* @dev Give `spender`, `amount` allowance to spend the tokens of
* `account`.
*
* @custom:modifiers
* - onlySelf
*/
function selfApproveFor(
address account,
address spender,
uint256 amount
) external;
/**************************************************************************
* SuperToken extra functions
*************************************************************************/
/**
* @dev Transfer all available balance from `msg.sender` to `recipient`
*/
function transferAll(address recipient) external;
/**************************************************************************
* ERC20 wrapping
*************************************************************************/
/**
* @dev Return the underlying token contract
* @return tokenAddr Underlying token address
*/
function getUnderlyingToken() external view returns(address tokenAddr);
/**
* @dev Upgrade ERC20 to SuperToken.
* @param amount Number of tokens to be upgraded (in 18 decimals)
*
* @custom:note It will use `transferFrom` to get tokens. Before calling this
* function you should `approve` this contract
*/
function upgrade(uint256 amount) external;
/**
* @dev Upgrade ERC20 to SuperToken and transfer immediately
* @param to The account to received upgraded tokens
* @param amount Number of tokens to be upgraded (in 18 decimals)
* @param data User data for the TokensRecipient callback
*
* @custom:note It will use `transferFrom` to get tokens. Before calling this
* function you should `approve` this contract
*/
function upgradeTo(address to, uint256 amount, bytes calldata data) external;
/**
* @dev Token upgrade event
* @param account Account where tokens are upgraded to
* @param amount Amount of tokens upgraded (in 18 decimals)
*/
event TokenUpgraded(
address indexed account,
uint256 amount
);
/**
* @dev Downgrade SuperToken to ERC20.
* @dev It will call transfer to send tokens
* @param amount Number of tokens to be downgraded
*/
function downgrade(uint256 amount) external;
/**
* @dev Token downgrade event
* @param account Account whose tokens are upgraded
* @param amount Amount of tokens downgraded
*/
event TokenDowngraded(
address indexed account,
uint256 amount
);
/**************************************************************************
* Batch Operations
*************************************************************************/
/**
* @dev Perform ERC20 approve by host contract.
* @param account The account owner to be approved.
* @param spender The spender of account owner's funds.
* @param amount Number of tokens to be approved.
*
* @custom:modifiers
* - onlyHost
*/
function operationApprove(
address account,
address spender,
uint256 amount
) external;
/**
* @dev Perform ERC20 transfer from by host contract.
* @param account The account to spend sender's funds.
* @param spender The account where the funds is sent from.
* @param recipient The recipient of thefunds.
* @param amount Number of tokens to be transferred.
*
* @custom:modifiers
* - onlyHost
*/
function operationTransferFrom(
address account,
address spender,
address recipient,
uint256 amount
) external;
/**
* @dev Upgrade ERC20 to SuperToken by host contract.
* @param account The account to be changed.
* @param amount Number of tokens to be upgraded (in 18 decimals)
*
* @custom:modifiers
* - onlyHost
*/
function operationUpgrade(address account, uint256 amount) external;
/**
* @dev Downgrade ERC20 to SuperToken by host contract.
* @param account The account to be changed.
* @param amount Number of tokens to be downgraded (in 18 decimals)
*
* @custom:modifiers
* - onlyHost
*/
function operationDowngrade(address account, uint256 amount) external;
/**************************************************************************
* Function modifiers for access control and parameter validations
*
* While they cannot be explicitly stated in function definitions, they are
* listed in function definition comments instead for clarity.
*
* NOTE: solidity-coverage not supporting it
*************************************************************************/
/// @dev The msg.sender must be the contract itself
//modifier onlySelf() virtual
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperAgreement } from "./ISuperAgreement.sol";
import { SuperfluidErrors } from "./Definitions.sol";
/**
* @title Superfluid token interface
* @author Superfluid
*/
interface ISuperfluidToken {
/**************************************************************************
* Basic information
*************************************************************************/
/**
* @dev Get superfluid host contract address
*/
function getHost() external view returns(address host);
/**
* @dev Encoded liquidation type data mainly used for handling stack to deep errors
*
* @custom:note
* - version: 1
* - liquidationType key:
* - 0 = reward account receives reward (PIC period)
* - 1 = liquidator account receives reward (Pleb period)
* - 2 = liquidator account receives reward (Pirate period/bailout)
*/
struct LiquidationTypeData {
uint256 version;
uint8 liquidationType;
}
/**************************************************************************
* Real-time balance functions
*************************************************************************/
/**
* @dev Calculate the real balance of a user, taking in consideration all agreements of the account
* @param account for the query
* @param timestamp Time of balance
* @return availableBalance Real-time balance
* @return deposit Account deposit
* @return owedDeposit Account owed Deposit
*/
function realtimeBalanceOf(
address account,
uint256 timestamp
)
external view
returns (
int256 availableBalance,
uint256 deposit,
uint256 owedDeposit);
/**
* @notice Calculate the realtime balance given the current host.getNow() value
* @dev realtimeBalanceOf with timestamp equals to block timestamp
* @param account for the query
* @return availableBalance Real-time balance
* @return deposit Account deposit
* @return owedDeposit Account owed Deposit
*/
function realtimeBalanceOfNow(
address account
)
external view
returns (
int256 availableBalance,
uint256 deposit,
uint256 owedDeposit,
uint256 timestamp);
/**
* @notice Check if account is critical
* @dev A critical account is when availableBalance < 0
* @param account The account to check
* @param timestamp The time we'd like to check if the account is critical (should use future)
* @return isCritical Whether the account is critical
*/
function isAccountCritical(
address account,
uint256 timestamp
)
external view
returns(bool isCritical);
/**
* @notice Check if account is critical now (current host.getNow())
* @dev A critical account is when availableBalance < 0
* @param account The account to check
* @return isCritical Whether the account is critical
*/
function isAccountCriticalNow(
address account
)
external view
returns(bool isCritical);
/**
* @notice Check if account is solvent
* @dev An account is insolvent when the sum of deposits for a token can't cover the negative availableBalance
* @param account The account to check
* @param timestamp The time we'd like to check if the account is solvent (should use future)
* @return isSolvent True if the account is solvent, false otherwise
*/
function isAccountSolvent(
address account,
uint256 timestamp
)
external view
returns(bool isSolvent);
/**
* @notice Check if account is solvent now
* @dev An account is insolvent when the sum of deposits for a token can't cover the negative availableBalance
* @param account The account to check
* @return isSolvent True if the account is solvent, false otherwise
*/
function isAccountSolventNow(
address account
)
external view
returns(bool isSolvent);
/**
* @notice Get a list of agreements that is active for the account
* @dev An active agreement is one that has state for the account
* @param account Account to query
* @return activeAgreements List of accounts that have non-zero states for the account
*/
function getAccountActiveAgreements(address account)
external view
returns(ISuperAgreement[] memory activeAgreements);
/**************************************************************************
* Super Agreement hosting functions
*************************************************************************/
/**
* @dev Create a new agreement
* @param id Agreement ID
* @param data Agreement data
*/
function createAgreement(
bytes32 id,
bytes32[] calldata data
)
external;
/**
* @dev Agreement created event
* @param agreementClass Contract address of the agreement
* @param id Agreement ID
* @param data Agreement data
*/
event AgreementCreated(
address indexed agreementClass,
bytes32 id,
bytes32[] data
);
/**
* @dev Get data of the agreement
* @param agreementClass Contract address of the agreement
* @param id Agreement ID
* @return data Data of the agreement
*/
function getAgreementData(
address agreementClass,
bytes32 id,
uint dataLength
)
external view
returns(bytes32[] memory data);
/**
* @dev Create a new agreement
* @param id Agreement ID
* @param data Agreement data
*/
function updateAgreementData(
bytes32 id,
bytes32[] calldata data
)
external;
/**
* @dev Agreement updated event
* @param agreementClass Contract address of the agreement
* @param id Agreement ID
* @param data Agreement data
*/
event AgreementUpdated(
address indexed agreementClass,
bytes32 id,
bytes32[] data
);
/**
* @dev Close the agreement
* @param id Agreement ID
*/
function terminateAgreement(
bytes32 id,
uint dataLength
)
external;
/**
* @dev Agreement terminated event
* @param agreementClass Contract address of the agreement
* @param id Agreement ID
*/
event AgreementTerminated(
address indexed agreementClass,
bytes32 id
);
/**
* @dev Update agreement state slot
* @param account Account to be updated
*
* @custom:note
* - To clear the storage out, provide zero-ed array of intended length
*/
function updateAgreementStateSlot(
address account,
uint256 slotId,
bytes32[] calldata slotData
)
external;
/**
* @dev Agreement account state updated event
* @param agreementClass Contract address of the agreement
* @param account Account updated
* @param slotId slot id of the agreement state
*/
event AgreementStateUpdated(
address indexed agreementClass,
address indexed account,
uint256 slotId
);
/**
* @dev Get data of the slot of the state of an agreement
* @param agreementClass Contract address of the agreement
* @param account Account to query
* @param slotId slot id of the state
* @param dataLength length of the state data
*/
function getAgreementStateSlot(
address agreementClass,
address account,
uint256 slotId,
uint dataLength
)
external view
returns (bytes32[] memory slotData);
/**
* @notice Settle balance from an account by the agreement
* @dev The agreement needs to make sure that the balance delta is balanced afterwards
* @param account Account to query.
* @param delta Amount of balance delta to be settled
*
* @custom:modifiers
* - onlyAgreement
*/
function settleBalance(
address account,
int256 delta
)
external;
/**
* @dev Make liquidation payouts (v2)
* @param id Agreement ID
* @param liquidationTypeData Data regarding the version of the liquidation schema and the type
* @param liquidatorAccount Address of the executor of the liquidation
* @param useDefaultRewardAccount Whether or not the default reward account receives the rewardAmount
* @param targetAccount Account to be liquidated
* @param rewardAmount The amount the rewarded account will receive
* @param targetAccountBalanceDelta The delta amount the target account balance should change by
*
* @custom:note
* - If a bailout is required (bailoutAmount > 0)
* - the actual reward (single deposit) goes to the executor,
* - while the reward account becomes the bailout account
* - total bailout include: bailout amount + reward amount
* - the targetAccount will be bailed out
* - If a bailout is not required
* - the targetAccount will pay the rewardAmount
* - the liquidator (reward account in PIC period) will receive the rewardAmount
*
* @custom:modifiers
* - onlyAgreement
*/
function makeLiquidationPayoutsV2
(
bytes32 id,
bytes memory liquidationTypeData,
address liquidatorAccount,
bool useDefaultRewardAccount,
address targetAccount,
uint256 rewardAmount,
int256 targetAccountBalanceDelta
) external;
/**
* @dev Agreement liquidation event v2 (including agent account)
* @param agreementClass Contract address of the agreement
* @param id Agreement ID
* @param liquidatorAccount Address of the executor of the liquidation
* @param targetAccount Account of the stream sender
* @param rewardAmountReceiver Account that collects the reward or bails out insolvent accounts
* @param rewardAmount The amount the reward recipient account balance should change by
* @param targetAccountBalanceDelta The amount the sender account balance should change by
* @param liquidationTypeData The encoded liquidation type data including the version (how to decode)
*
* @custom:note
* Reward account rule:
* - if the agreement is liquidated during the PIC period
* - the rewardAmountReceiver will get the rewardAmount (remaining deposit), regardless of the liquidatorAccount
* - the targetAccount will pay for the rewardAmount
* - if the agreement is liquidated after the PIC period AND the targetAccount is solvent
* - the rewardAmountReceiver will get the rewardAmount (remaining deposit)
* - the targetAccount will pay for the rewardAmount
* - if the targetAccount is insolvent
* - the liquidatorAccount will get the rewardAmount (single deposit)
* - the default reward account (governance) will pay for both the rewardAmount and bailoutAmount
* - the targetAccount will receive the bailoutAmount
*/
event AgreementLiquidatedV2(
address indexed agreementClass,
bytes32 id,
address indexed liquidatorAccount,
address indexed targetAccount,
address rewardAmountReceiver,
uint256 rewardAmount,
int256 targetAccountBalanceDelta,
bytes liquidationTypeData
);
/**************************************************************************
* Function modifiers for access control and parameter validations
*
* While they cannot be explicitly stated in function definitions, they are
* listed in function definition comments instead for clarity.
*
* NOTE: solidity-coverage not supporting it
*************************************************************************/
/// @dev The msg.sender must be host contract
//modifier onlyHost() virtual;
/// @dev The msg.sender must be a listed agreement.
//modifier onlyAgreement() virtual;
/**************************************************************************
* DEPRECATED
*************************************************************************/
/**
* @dev Agreement liquidation event (DEPRECATED BY AgreementLiquidatedBy)
* @param agreementClass Contract address of the agreement
* @param id Agreement ID
* @param penaltyAccount Account of the agreement to be penalized
* @param rewardAccount Account that collect the reward
* @param rewardAmount Amount of liquidation reward
*
* @custom:deprecated Use AgreementLiquidatedV2 instead
*/
event AgreementLiquidated(
address indexed agreementClass,
bytes32 id,
address indexed penaltyAccount,
address indexed rewardAccount,
uint256 rewardAmount
);
/**
* @dev System bailout occurred (DEPRECATED BY AgreementLiquidatedBy)
* @param bailoutAccount Account that bailout the penalty account
* @param bailoutAmount Amount of account bailout
*
* @custom:deprecated Use AgreementLiquidatedV2 instead
*/
event Bailout(
address indexed bailoutAccount,
uint256 bailoutAmount
);
/**
* @dev Agreement liquidation event (DEPRECATED BY AgreementLiquidatedV2)
* @param liquidatorAccount Account of the agent that performed the liquidation.
* @param agreementClass Contract address of the agreement
* @param id Agreement ID
* @param penaltyAccount Account of the agreement to be penalized
* @param bondAccount Account that collect the reward or bailout accounts
* @param rewardAmount Amount of liquidation reward
* @param bailoutAmount Amount of liquidation bailouot
*
* @custom:deprecated Use AgreementLiquidatedV2 instead
*
* @custom:note
* Reward account rule:
* - if bailout is equal to 0, then
* - the bondAccount will get the rewardAmount,
* - the penaltyAccount will pay for the rewardAmount.
* - if bailout is larger than 0, then
* - the liquidatorAccount will get the rewardAmouont,
* - the bondAccount will pay for both the rewardAmount and bailoutAmount,
* - the penaltyAccount will pay for the rewardAmount while get the bailoutAmount.
*/
event AgreementLiquidatedBy(
address liquidatorAccount,
address indexed agreementClass,
bytes32 id,
address indexed penaltyAccount,
address indexed bondAccount,
uint256 rewardAmount,
uint256 bailoutAmount
);
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperToken } from "./ISuperToken.sol";
import {
IERC20,
ERC20WithTokenInfo
} from "../tokens/ERC20WithTokenInfo.sol";
import { SuperfluidErrors } from "./Definitions.sol";
/**
* @title Super token factory interface
* @author Superfluid
*/
interface ISuperTokenFactory {
/**
* @dev Get superfluid host contract address
*/
function getHost() external view returns(address host);
/// @dev Initialize the contract
function initialize() external;
/**
* @dev Get the current super token logic used by the factory
*/
function getSuperTokenLogic() external view returns (ISuperToken superToken);
/**
* @dev Upgradability modes
*/
enum Upgradability {
/// Non upgradable super token, `host.updateSuperTokenLogic` will revert
NON_UPGRADABLE,
/// Upgradable through `host.updateSuperTokenLogic` operation
SEMI_UPGRADABLE,
/// Always using the latest super token logic
FULL_UPGRADABE
}
/**
* @dev Create new super token wrapper for the underlying ERC20 token
* @param underlyingToken Underlying ERC20 token
* @param underlyingDecimals Underlying token decimals
* @param upgradability Upgradability mode
* @param name Super token name
* @param symbol Super token symbol
*/
function createERC20Wrapper(
IERC20 underlyingToken,
uint8 underlyingDecimals,
Upgradability upgradability,
string calldata name,
string calldata symbol
)
external
returns (ISuperToken superToken);
/**
* @dev Create new super token wrapper for the underlying ERC20 token with extra token info
* @param underlyingToken Underlying ERC20 token
* @param upgradability Upgradability mode
* @param name Super token name
* @param symbol Super token symbol
*
* NOTE:
* - It assumes token provide the .decimals() function
*/
function createERC20Wrapper(
ERC20WithTokenInfo underlyingToken,
Upgradability upgradability,
string calldata name,
string calldata symbol
)
external
returns (ISuperToken superToken);
function initializeCustomSuperToken(
address customSuperTokenProxy
)
external;
/**
* @dev Super token logic created event
* @param tokenLogic Token logic address
*/
event SuperTokenLogicCreated(ISuperToken indexed tokenLogic);
/**
* @dev Super token created event
* @param token Newly created super token address
*/
event SuperTokenCreated(ISuperToken indexed token);
/**
* @dev Custom super token created event
* @param token Newly created custom super token address
*/
event CustomSuperTokenCreated(ISuperToken indexed token);
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperfluidToken } from "./ISuperfluidToken.sol";
/**
* @title Super agreement interface
* @author Superfluid
*/
interface ISuperAgreement {
/**
* @dev Get the type of the agreement class
*/
function agreementType() external view returns (bytes32);
/**
* @dev Calculate the real-time balance for the account of this agreement class
* @param account Account the state belongs to
* @param time Time used for the calculation
* @return dynamicBalance Dynamic balance portion of real-time balance of this agreement
* @return deposit Account deposit amount of this agreement
* @return owedDeposit Account owed deposit amount of this agreement
*/
function realtimeBalanceOf(
ISuperfluidToken token,
address account,
uint256 time
)
external
view
returns (
int256 dynamicBalance,
uint256 deposit,
uint256 owedDeposit
);
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { ISuperToken } from "./ISuperToken.sol";
/**
* @title SuperApp interface
* @author Superfluid
* @dev Be aware of the app being jailed, when the word permitted is used.
*/
interface ISuperApp {
/**
* @dev Callback before a new agreement is created.
* @param superToken The super token used for the agreement.
* @param agreementClass The agreement class address.
* @param agreementId The agreementId
* @param agreementData The agreement data (non-compressed)
* @param ctx The context data.
* @return cbdata A free format in memory data the app can use to pass
* arbitary information to the after-hook callback.
*
* @custom:note
* - It will be invoked with `staticcall`, no state changes are permitted.
* - Only revert with a "reason" is permitted.
*/
function beforeAgreementCreated(
ISuperToken superToken,
address agreementClass,
bytes32 agreementId,
bytes calldata agreementData,
bytes calldata ctx
)
external
view
returns (bytes memory cbdata);
/**
* @dev Callback after a new agreement is created.
* @param superToken The super token used for the agreement.
* @param agreementClass The agreement class address.
* @param agreementId The agreementId
* @param agreementData The agreement data (non-compressed)
* @param cbdata The data returned from the before-hook callback.
* @param ctx The context data.
* @return newCtx The current context of the transaction.
*
* @custom:note
* - State changes is permitted.
* - Only revert with a "reason" is permitted.
*/
function afterAgreementCreated(
ISuperToken superToken,
address agreementClass,
bytes32 agreementId,
bytes calldata agreementData,
bytes calldata cbdata,
bytes calldata ctx
)
external
returns (bytes memory newCtx);
/**
* @dev Callback before a new agreement is updated.
* @param superToken The super token used for the agreement.
* @param agreementClass The agreement class address.
* @param agreementId The agreementId
* @param agreementData The agreement data (non-compressed)
* @param ctx The context data.
* @return cbdata A free format in memory data the app can use to pass
* arbitary information to the after-hook callback.
*
* @custom:note
* - It will be invoked with `staticcall`, no state changes are permitted.
* - Only revert with a "reason" is permitted.
*/
function beforeAgreementUpdated(
ISuperToken superToken,
address agreementClass,
bytes32 agreementId,
bytes calldata agreementData,
bytes calldata ctx
)
external
view
returns (bytes memory cbdata);
/**
* @dev Callback after a new agreement is updated.
* @param superToken The super token used for the agreement.
* @param agreementClass The agreement class address.
* @param agreementId The agreementId
* @param agreementData The agreement data (non-compressed)
* @param cbdata The data returned from the before-hook callback.
* @param ctx The context data.
* @return newCtx The current context of the transaction.
*
* @custom:note
* - State changes is permitted.
* - Only revert with a "reason" is permitted.
*/
function afterAgreementUpdated(
ISuperToken superToken,
address agreementClass,
bytes32 agreementId,
bytes calldata agreementData,
bytes calldata cbdata,
bytes calldata ctx
)
external
returns (bytes memory newCtx);
/**
* @dev Callback before a new agreement is terminated.
* @param superToken The super token used for the agreement.
* @param agreementClass The agreement class address.
* @param agreementId The agreementId
* @param agreementData The agreement data (non-compressed)
* @param ctx The context data.
* @return cbdata A free format in memory data the app can use to pass arbitary information to the after-hook callback.
*
* @custom:note
* - It will be invoked with `staticcall`, no state changes are permitted.
* - Revert is not permitted.
*/
function beforeAgreementTerminated(
ISuperToken superToken,
address agreementClass,
bytes32 agreementId,
bytes calldata agreementData,
bytes calldata ctx
)
external
view
returns (bytes memory cbdata);
/**
* @dev Callback after a new agreement is terminated.
* @param superToken The super token used for the agreement.
* @param agreementClass The agreement class address.
* @param agreementId The agreementId
* @param agreementData The agreement data (non-compressed)
* @param cbdata The data returned from the before-hook callback.
* @param ctx The context data.
* @return newCtx The current context of the transaction.
*
* @custom:note
* - State changes is permitted.
* - Revert is not permitted.
*/
function afterAgreementTerminated(
ISuperToken superToken,
address agreementClass,
bytes32 agreementId,
bytes calldata agreementData,
bytes calldata cbdata,
bytes calldata ctx
)
external
returns (bytes memory newCtx);
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
/**
* @title Super app definitions library
* @author Superfluid
*/
library SuperAppDefinitions {
/**************************************************************************
/ App manifest config word
/**************************************************************************/
/*
* App level is a way to allow the app to whitelist what other app it can
* interact with (aka. composite app feature).
*
* For more details, refer to the technical paper of superfluid protocol.
*/
uint256 constant internal APP_LEVEL_MASK = 0xFF;
// The app is at the final level, hence it doesn't want to interact with any other app
uint256 constant internal APP_LEVEL_FINAL = 1 << 0;
// The app is at the second level, it may interact with other final level apps if whitelisted
uint256 constant internal APP_LEVEL_SECOND = 1 << 1;
function getAppCallbackLevel(uint256 configWord) internal pure returns (uint8) {
return uint8(configWord & APP_LEVEL_MASK);
}
uint256 constant internal APP_JAIL_BIT = 1 << 15;
function isAppJailed(uint256 configWord) internal pure returns (bool) {
return (configWord & SuperAppDefinitions.APP_JAIL_BIT) > 0;
}
/**************************************************************************
/ Callback implementation bit masks
/**************************************************************************/
uint256 constant internal AGREEMENT_CALLBACK_NOOP_BITMASKS = 0xFF << 32;
uint256 constant internal BEFORE_AGREEMENT_CREATED_NOOP = 1 << (32 + 0);
uint256 constant internal AFTER_AGREEMENT_CREATED_NOOP = 1 << (32 + 1);
uint256 constant internal BEFORE_AGREEMENT_UPDATED_NOOP = 1 << (32 + 2);
uint256 constant internal AFTER_AGREEMENT_UPDATED_NOOP = 1 << (32 + 3);
uint256 constant internal BEFORE_AGREEMENT_TERMINATED_NOOP = 1 << (32 + 4);
uint256 constant internal AFTER_AGREEMENT_TERMINATED_NOOP = 1 << (32 + 5);
/**************************************************************************
/ App Jail Reasons
/**************************************************************************/
uint256 constant internal APP_RULE_REGISTRATION_ONLY_IN_CONSTRUCTOR = 1;
uint256 constant internal APP_RULE_NO_REGISTRATION_FOR_EOA = 2;
uint256 constant internal APP_RULE_NO_REVERT_ON_TERMINATION_CALLBACK = 10;
uint256 constant internal APP_RULE_NO_CRITICAL_SENDER_ACCOUNT = 11;
uint256 constant internal APP_RULE_NO_CRITICAL_RECEIVER_ACCOUNT = 12;
uint256 constant internal APP_RULE_CTX_IS_READONLY = 20;
uint256 constant internal APP_RULE_CTX_IS_NOT_CLEAN = 21;
uint256 constant internal APP_RULE_CTX_IS_MALFORMATED = 22;
uint256 constant internal APP_RULE_COMPOSITE_APP_IS_NOT_WHITELISTED = 30;
uint256 constant internal APP_RULE_COMPOSITE_APP_IS_JAILED = 31;
uint256 constant internal APP_RULE_MAX_APP_LEVEL_REACHED = 40;
// Validate configWord cleaness for future compatibility, or else may introduce undefined future behavior
function isConfigWordClean(uint256 configWord) internal pure returns (bool) {
return (configWord & ~(APP_LEVEL_MASK | APP_JAIL_BIT | AGREEMENT_CALLBACK_NOOP_BITMASKS)) == uint256(0);
}
}
/**
* @title Context definitions library
* @author Superfluid
*/
library ContextDefinitions {
/**************************************************************************
/ Call info
/**************************************************************************/
// app level
uint256 constant internal CALL_INFO_APP_LEVEL_MASK = 0xFF;
// call type
uint256 constant internal CALL_INFO_CALL_TYPE_SHIFT = 32;
uint256 constant internal CALL_INFO_CALL_TYPE_MASK = 0xF << CALL_INFO_CALL_TYPE_SHIFT;
uint8 constant internal CALL_INFO_CALL_TYPE_AGREEMENT = 1;
uint8 constant internal CALL_INFO_CALL_TYPE_APP_ACTION = 2;
uint8 constant internal CALL_INFO_CALL_TYPE_APP_CALLBACK = 3;
function decodeCallInfo(uint256 callInfo)
internal pure
returns (uint8 appCallbackLevel, uint8 callType)
{
appCallbackLevel = uint8(callInfo & CALL_INFO_APP_LEVEL_MASK);
callType = uint8((callInfo & CALL_INFO_CALL_TYPE_MASK) >> CALL_INFO_CALL_TYPE_SHIFT);
}
function encodeCallInfo(uint8 appCallbackLevel, uint8 callType)
internal pure
returns (uint256 callInfo)
{
return uint256(appCallbackLevel) | (uint256(callType) << CALL_INFO_CALL_TYPE_SHIFT);
}
}
/**
* @title Flow Operator definitions library
* @author Superfluid
*/
library FlowOperatorDefinitions {
uint8 constant internal AUTHORIZE_FLOW_OPERATOR_CREATE = uint8(1) << 0;
uint8 constant internal AUTHORIZE_FLOW_OPERATOR_UPDATE = uint8(1) << 1;
uint8 constant internal AUTHORIZE_FLOW_OPERATOR_DELETE = uint8(1) << 2;
uint8 constant internal AUTHORIZE_FULL_CONTROL =
AUTHORIZE_FLOW_OPERATOR_CREATE | AUTHORIZE_FLOW_OPERATOR_UPDATE | AUTHORIZE_FLOW_OPERATOR_DELETE;
uint8 constant internal REVOKE_FLOW_OPERATOR_CREATE = ~(uint8(1) << 0);
uint8 constant internal REVOKE_FLOW_OPERATOR_UPDATE = ~(uint8(1) << 1);
uint8 constant internal REVOKE_FLOW_OPERATOR_DELETE = ~(uint8(1) << 2);
function isPermissionsClean(uint8 permissions) internal pure returns (bool) {
return (
permissions & ~(AUTHORIZE_FLOW_OPERATOR_CREATE
| AUTHORIZE_FLOW_OPERATOR_UPDATE
| AUTHORIZE_FLOW_OPERATOR_DELETE)
) == uint8(0);
}
}
/**
* @title Batch operation library
* @author Superfluid
*/
library BatchOperation {
/**
* @dev ERC20.approve batch operation type
*
* Call spec:
* ISuperToken(target).operationApprove(
* abi.decode(data, (address spender, uint256 amount))
* )
*/
uint32 constant internal OPERATION_TYPE_ERC20_APPROVE = 1;
/**
* @dev ERC20.transferFrom batch operation type
*
* Call spec:
* ISuperToken(target).operationTransferFrom(
* abi.decode(data, (address sender, address recipient, uint256 amount)
* )
*/
uint32 constant internal OPERATION_TYPE_ERC20_TRANSFER_FROM = 2;
/**
* @dev SuperToken.upgrade batch operation type
*
* Call spec:
* ISuperToken(target).operationUpgrade(
* abi.decode(data, (uint256 amount)
* )
*/
uint32 constant internal OPERATION_TYPE_SUPERTOKEN_UPGRADE = 1 + 100;
/**
* @dev SuperToken.downgrade batch operation type
*
* Call spec:
* ISuperToken(target).operationDowngrade(
* abi.decode(data, (uint256 amount)
* )
*/
uint32 constant internal OPERATION_TYPE_SUPERTOKEN_DOWNGRADE = 2 + 100;
/**
* @dev Superfluid.callAgreement batch operation type
*
* Call spec:
* callAgreement(
* ISuperAgreement(target)),
* abi.decode(data, (bytes calldata, bytes userdata)
* )
*/
uint32 constant internal OPERATION_TYPE_SUPERFLUID_CALL_AGREEMENT = 1 + 200;
/**
* @dev Superfluid.callAppAction batch operation type
*
* Call spec:
* callAppAction(
* ISuperApp(target)),
* data
* )
*/
uint32 constant internal OPERATION_TYPE_SUPERFLUID_CALL_APP_ACTION = 2 + 200;
}
/**
* @title Superfluid governance configs library
* @author Superfluid
*/
library SuperfluidGovernanceConfigs {
bytes32 constant internal SUPERFLUID_REWARD_ADDRESS_CONFIG_KEY =
keccak256("org.superfluid-finance.superfluid.rewardAddress");
bytes32 constant internal CFAV1_PPP_CONFIG_KEY =
keccak256("org.superfluid-finance.agreements.ConstantFlowAgreement.v1.PPPConfiguration");
bytes32 constant internal SUPERTOKEN_MINIMUM_DEPOSIT_KEY =
keccak256("org.superfluid-finance.superfluid.superTokenMinimumDeposit");
function getTrustedForwarderConfigKey(address forwarder) internal pure returns (bytes32) {
return keccak256(abi.encode(
"org.superfluid-finance.superfluid.trustedForwarder",
forwarder));
}
function getAppRegistrationConfigKey(address deployer, string memory registrationKey) internal pure returns (bytes32) {
return keccak256(abi.encode(
"org.superfluid-finance.superfluid.appWhiteListing.registrationKey",
deployer,
registrationKey));
}
function getAppFactoryConfigKey(address factory) internal pure returns (bytes32) {
return keccak256(abi.encode(
"org.superfluid-finance.superfluid.appWhiteListing.factory",
factory));
}
function decodePPPConfig(uint256 pppConfig) internal pure returns (uint256 liquidationPeriod, uint256 patricianPeriod) {
liquidationPeriod = (pppConfig >> 32) & type(uint32).max;
patricianPeriod = pppConfig & type(uint32).max;
}
}
/**
* @title Superfluid Common Custom Errors and Error Codes
* @author Superfluid
*/
library SuperfluidErrors {
/**************************************************************************
/ Shared Custom Errors
/**************************************************************************/
error APP_RULE(uint256 _code); // uses SuperAppDefinitions' App Jail Reasons
// The Error Code Reference refers to the types of errors within a range,
// e.g. ALREADY_EXISTS and DOES_NOT_EXIST error codes will live between
// 1000-1099 for Constant Flow Agreement error codes.
// Error Code Reference
error ALREADY_EXISTS(uint256 _code); // 0 - 99
error DOES_NOT_EXIST(uint256 _code); // 0 - 99
error INSUFFICIENT_BALANCE(uint256 _code); // 100 - 199
error MUST_BE_CONTRACT(uint256 _code); // 200 - 299
error ONLY_LISTED_AGREEMENT(uint256 _code); // 300 - 399
error ONLY_HOST(uint256 _code); // 400 - 499
error ZERO_ADDRESS(uint256 _code); // 500 - 599
error OUT_OF_GAS(uint256 _code); // 600 - 699
/**************************************************************************
/ Error Codes
/**************************************************************************/
// 1000 - 1999 | Constant Flow Agreement
uint256 constant internal CFA_FLOW_ALREADY_EXISTS = 1000;
uint256 constant internal CFA_FLOW_DOES_NOT_EXIST = 1001;
uint256 constant internal CFA_INSUFFICIENT_BALANCE = 1100;
uint256 constant internal CFA_ZERO_ADDRESS_SENDER = 1500;
uint256 constant internal CFA_ZERO_ADDRESS_RECEIVER = 1501;
uint256 constant internal CFA_HOOK_OUT_OF_GAS = 1600;
// 2000 - 2999 | Instant Distribution Agreement
uint256 constant internal IDA_INDEX_ALREADY_EXISTS = 2000;
uint256 constant internal IDA_INDEX_DOES_NOT_EXIST = 2001;
uint256 constant internal IDA_SUBSCRIPTION_DOES_NOT_EXIST = 2002;
uint256 constant internal IDA_SUBSCRIPTION_ALREADY_APPROVED = 2003;
uint256 constant internal IDA_SUBSCRIPTION_IS_NOT_APPROVED = 2004;
uint256 constant internal IDA_INSUFFICIENT_BALANCE = 2100;
uint256 constant internal IDA_ZERO_ADDRESS_SUBSCRIBER = 2500;
// 3000 - 3999 | Host
uint256 constant internal HOST_AGREEMENT_ALREADY_REGISTERED = 3000;
uint256 constant internal HOST_AGREEMENT_IS_NOT_REGISTERED = 3001;
uint256 constant internal HOST_SUPER_APP_ALREADY_REGISTERED = 3002;
uint256 constant internal HOST_MUST_BE_CONTRACT = 3200;
uint256 constant internal HOST_ONLY_LISTED_AGREEMENT = 3300;
// 4000 - 4999 | Superfluid Governance II
uint256 constant internal SF_GOV_MUST_BE_CONTRACT = 4200;
// 5000 - 5999 | SuperfluidToken
uint256 constant internal SF_TOKEN_AGREEMENT_ALREADY_EXISTS = 5000;
uint256 constant internal SF_TOKEN_AGREEMENT_DOES_NOT_EXIST = 5001;
uint256 constant internal SF_TOKEN_BURN_INSUFFICIENT_BALANCE = 5100;
uint256 constant internal SF_TOKEN_MOVE_INSUFFICIENT_BALANCE = 5101;
uint256 constant internal SF_TOKEN_ONLY_LISTED_AGREEMENT = 5300;
uint256 constant internal SF_TOKEN_ONLY_HOST = 5400;
// 6000 - 6999 | SuperToken
uint256 constant internal SUPER_TOKEN_ONLY_HOST = 6400;
uint256 constant internal SUPER_TOKEN_APPROVE_FROM_ZERO_ADDRESS = 6500;
uint256 constant internal SUPER_TOKEN_APPROVE_TO_ZERO_ADDRESS = 6501;
uint256 constant internal SUPER_TOKEN_BURN_FROM_ZERO_ADDRESS = 6502;
uint256 constant internal SUPER_TOKEN_MINT_TO_ZERO_ADDRESS = 6503;
uint256 constant internal SUPER_TOKEN_TRANSFER_FROM_ZERO_ADDRESS = 6504;
uint256 constant internal SUPER_TOKEN_TRANSFER_TO_ZERO_ADDRESS = 6505;
// 7000 - 7999 | SuperToken Factory
uint256 constant internal SUPER_TOKEN_FACTORY_ONLY_HOST = 7400;
uint256 constant internal SUPER_TOKEN_FACTORY_ZERO_ADDRESS = 7500;
// 8000 - 8999 | Agreement Base
uint256 constant internal AGREEMENT_BASE_ONLY_HOST = 8400;
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
/**
* @title ERC20 token info interface
* @author Superfluid
* @dev ERC20 standard interface does not specify these functions, but
* often the token implementations have them.
*/
interface TokenInfo {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
* called.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() external view returns (uint8);
}// SPDX-License-Identifier: AGPLv3
pragma solidity >= 0.8.4;
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { TokenInfo } from "./TokenInfo.sol";
/**
* @title ERC20 token with token info interface
* @author Superfluid
* @dev Using abstract contract instead of interfaces because old solidity
* does not support interface inheriting other interfaces
* solhint-disable-next-line no-empty-blocks
*
*/
// solhint-disable-next-line no-empty-blocks
abstract contract ERC20WithTokenInfo is IERC20, TokenInfo {}{
"optimizer": {
"enabled": true,
"runs": 200
},
"viaIR": true,
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"cfa_","type":"address"},{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ALREADY_MINTED","type":"error"},{"inputs":[],"name":"FLOW_ONGOING","type":"error"},{"inputs":[],"name":"NOT_AVAILABLE","type":"error"},{"inputs":[],"name":"NOT_EXISTS","type":"error"},{"inputs":[],"name":"ZERO_ADDRESS","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseUrl","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"}],"name":"burn","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"}],"name":"getTokenId","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ISuperfluidToken","name":"token","type":"address"},{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"flowOperator","type":"address"},{"internalType":"int96","name":"flowRate","type":"int96"}],"internalType":"struct IConstantFlowAgreementHook.CFAHookParams","name":"newFlowData","type":"tuple"}],"name":"onCreate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ISuperfluidToken","name":"token","type":"address"},{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"flowOperator","type":"address"},{"internalType":"int96","name":"flowRate","type":"int96"}],"internalType":"struct IConstantFlowAgreementHook.CFAHookParams","name":"updatedFlowData","type":"tuple"},{"internalType":"int96","name":"","type":"int96"}],"name":"onDelete","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ISuperfluidToken","name":"","type":"address"},{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"flowOperator","type":"address"},{"internalType":"int96","name":"flowRate","type":"int96"}],"internalType":"struct IConstantFlowAgreementHook.CFAHookParams","name":"","type":"tuple"},{"internalType":"int96","name":"","type":"int96"}],"name":"onUpdate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"owner","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"bool","name":"","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenCnt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"pure","type":"function"}]Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000204c6f131bb7f258b2ea1593f5309911d8e458ed000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000115375706572666c7569642053747265616d00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000035346530000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : cfa_ (address): 0x204C6f131bb7F258b2Ea1593f5309911d8E458eD
Arg [1] : name_ (string): Superfluid Stream
Arg [2] : symbol_ (string): SFS
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000204c6f131bb7f258b2ea1593f5309911d8e458ed
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000011
Arg [4] : 5375706572666c7569642053747265616d000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 5346530000000000000000000000000000000000000000000000000000000000
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