JBController4_1

Git Source

Inherits: JBPermissioned, ERC2771Context, IJBController4_1, [IJBMigratable]/docs/v4/api/core/interfaces/IJBMigratable.md)

JBController coordinates rulesets and project tokens, and is the entry point for most operations related to rulesets and project tokens.

State Variables

DIRECTORY

The directory of terminals and controllers for projects.

IJBDirectory public immutable override DIRECTORY;

FUND_ACCESS_LIMITS

A contract that stores fund access limits for each project.

IJBFundAccessLimits public immutable override FUND_ACCESS_LIMITS;

PRICES

A contract that stores prices for each project.

IJBPrices public immutable override PRICES;

PROJECTS

Mints ERC-721s that represent project ownership and transfers.

IJBProjects public immutable override PROJECTS;

RULESETS

The contract storing and managing project rulesets.

IJBRulesets public immutable override RULESETS;

SPLITS

The contract that stores splits for each project.

IJBSplits public immutable override SPLITS;

TOKENS

The contract that manages token minting and burning.

IJBTokens public immutable override TOKENS;

OMNICHAIN_RULESET_OPERATOR

The address of the contract that manages omnichain ruleset ops.

address public immutable OMNICHAIN_RULESET_OPERATOR;

pendingReservedTokenBalanceOf

A project's unrealized reserved token balance (i.e. reserved tokens which haven't been sent out to the reserved token split group yet).

mapping(uint256 projectId => uint256) public override pendingReservedTokenBalanceOf;

uriOf

The metadata URI for each project. This is typically an IPFS hash, optionally with an ipfs:// prefix.

mapping(uint256 projectId => string) public override uriOf;

Functions

constructor

constructor(
    IJBDirectory directory,
    IJBFundAccessLimits fundAccessLimits,
    IJBPermissions permissions,
    IJBPrices prices,
    IJBProjects projects,
    IJBRulesets rulesets,
    IJBSplits splits,
    IJBTokens tokens,
    address omnichainRulesetOperator,
    address trustedForwarder
)
    JBPermissioned(permissions)
    ERC2771Context(trustedForwarder);

Parameters

Name	Type	Description
directory	IJBDirectory	A contract storing directories of terminals and controllers for each project.
fundAccessLimits	IJBFundAccessLimits	A contract that stores fund access limits for each project.
permissions	IJBPermissions	A contract storing permissions.
prices	IJBPrices	A contract that stores prices for each project.
projects	IJBProjects	A contract which mints ERC-721s that represent project ownership and transfers.
rulesets	IJBRulesets	A contract storing and managing project rulesets.
splits	IJBSplits	A contract that stores splits for each project.
tokens	IJBTokens	A contract that manages token minting and burning.
omnichainRulesetOperator	address	The address of the contract that manages omnichain ruleset ops.
trustedForwarder	address	The trusted forwarder for the ERC2771Context.

allRulesetsOf

Get an array of a project's rulesets (with metadata) up to a maximum array size, sorted from latest to earliest.

function allRulesetsOf(
    uint256 projectId,
    uint256 startingId,
    uint256 size
)
    external
    view
    override
    returns (JBRulesetWithMetadata[] memory rulesets);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to get the rulesets of.
startingId	uint256	The ID of the ruleset to begin with. This will be the latest ruleset in the result. If the startingId is 0, passed, the project's latest ruleset will be used.
size	uint256	The maximum number of rulesets to return.

Returns

Name	Type	Description
rulesets	JBRulesetWithMetadata[]	The array of rulesets with their metadata.

currentRulesetOf

A project's currently active ruleset and its metadata.

function currentRulesetOf(uint256 projectId)
    external
    view
    override
    returns (JBRuleset memory ruleset, JBRulesetMetadata memory metadata);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to get the current ruleset of.

Returns

Name	Type	Description
ruleset	JBRuleset	The current ruleset's struct.
metadata	JBRulesetMetadata	The current ruleset's metadata.

getRulesetOf

Get the JBRuleset and JBRulesetMetadata corresponding to the specified rulesetId.

function getRulesetOf(
    uint256 projectId,
    uint256 rulesetId
)
    external
    view
    override
    returns (JBRuleset memory ruleset, JBRulesetMetadata memory metadata);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project the ruleset belongs to.
rulesetId	uint256

Returns

Name	Type	Description
ruleset	JBRuleset	The ruleset's struct.
metadata	JBRulesetMetadata	The ruleset's metadata.

latestQueuedRulesetOf

Gets the latest ruleset queued for a project, its approval status, and its metadata.

The 'latest queued ruleset' is the ruleset initialized furthest in the future (at the end of the ruleset queue).

function latestQueuedRulesetOf(uint256 projectId)
    external
    view
    override
    returns (JBRuleset memory ruleset, JBRulesetMetadata memory metadata, JBApprovalStatus approvalStatus);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to get the latest ruleset of.

Returns

Name	Type	Description
ruleset	JBRuleset	The struct for the project's latest queued ruleset.
metadata	JBRulesetMetadata	The ruleset's metadata.
approvalStatus	JBApprovalStatus	The ruleset's approval status.

setTerminalsAllowed

Check whether the project's terminals can currently be set.

function setTerminalsAllowed(uint256 projectId) external view returns (bool);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to check.

Returns

Name	Type	Description
<none>	bool	A bool which is true if the project allows terminals to be set.

setControllerAllowed

Check whether the project's controller can currently be set.

function setControllerAllowed(uint256 projectId) external view returns (bool);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to check.

Returns

Name	Type	Description
<none>	bool	A bool which is true if the project allows controllers to be set.

totalTokenSupplyWithReservedTokensOf

Gets the a project token's total supply, including pending reserved tokens.

function totalTokenSupplyWithReservedTokensOf(uint256 projectId) external view override returns (uint256);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to get the total token supply of.

Returns

Name	Type	Description
<none>	uint256	The total supply of the project's token, including pending reserved tokens.

upcomingRulesetOf

A project's next ruleset along with its metadata.

If an upcoming ruleset isn't found, returns an empty ruleset with all properties set to 0.

function upcomingRulesetOf(uint256 projectId)
    external
    view
    override
    returns (JBRuleset memory ruleset, JBRulesetMetadata memory metadata);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to get the next ruleset of.

Returns

Name	Type	Description
ruleset	JBRuleset	The upcoming ruleset's struct.
metadata	JBRulesetMetadata	The upcoming ruleset's metadata.

supportsInterface

Indicates whether this contract adheres to the specified interface.

See IERC165-supportsInterface.

function supportsInterface(bytes4 interfaceId) public pure override returns (bool);

Parameters

Name	Type	Description
interfaceId	bytes4	The ID of the interface to check for adherence to.

Returns

Name	Type	Description
<none>	bool	A flag indicating if the provided interface ID is supported.

_contextSuffixLength

ERC-2771 specifies the context as being a single address (20 bytes).

function _contextSuffixLength() internal view override(ERC2771Context, Context) returns (uint256);

_currentRulesetOf

The project's current ruleset.

function _currentRulesetOf(uint256 projectId) internal view returns (JBRuleset memory);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to check.

Returns

Name	Type	Description
<none>	JBRuleset	The project's current ruleset.

_isTerminalOf

Indicates whether the provided address is a terminal for the project.

function _isTerminalOf(uint256 projectId, address terminal) internal view returns (bool);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to check.
terminal	address	The address to check.

Returns

Name	Type	Description
<none>	bool	A flag indicating if the provided address is a terminal for the project.

_hasDataHookMintPermissionFor

Indicates whether the provided address has mint permission for the project byway of the data hook.

function _hasDataHookMintPermissionFor(
    uint256 projectId,
    JBRuleset memory ruleset,
    address addr
)
    internal
    view
    returns (bool);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to check.
ruleset	JBRuleset	The ruleset to check.
addr	address	The address to check.

Returns

Name	Type	Description
<none>	bool	A flag indicating if the provided address has mint permission for the project.

_msgData

The calldata. Preferred to use over msg.data.

function _msgData() internal view override(ERC2771Context, Context) returns (bytes calldata);

Returns

Name	Type	Description
<none>	bytes	calldata The msg.data of this call.

_msgSender

The message's sender. Preferred to use over msg.sender.

function _msgSender() internal view override(ERC2771Context, Context) returns (address sender);

Returns

Name	Type	Description
sender	address	The address which sent this call.

_upcomingRulesetOf

The project's upcoming ruleset.

function _upcomingRulesetOf(uint256 projectId) internal view returns (JBRuleset memory);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to check.

Returns

Name	Type	Description
<none>	JBRuleset	The project's upcoming ruleset.

addPriceFeed

Add a price feed for a project.

Can only be called by the project's owner or an address with the owner's permission to ADD_PRICE_FEED.

function addPriceFeed(
    uint256 projectId,
    uint256 pricingCurrency,
    uint256 unitCurrency,
    IJBPriceFeed feed
)
    external
    override;

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to add the feed for.
pricingCurrency	uint256	The currency the feed's output price is in terms of.
unitCurrency	uint256	The currency being priced by the feed.
feed	IJBPriceFeed	The address of the price feed to add.

burnTokensOf

Burns a project's tokens or credits from the specific holder's balance.

Can only be called by the holder, an address with the holder's permission to BURN_TOKENS, or a project's terminal.

function burnTokensOf(address holder, uint256 projectId, uint256 tokenCount, string calldata memo) external override;

Parameters

Name	Type	Description
holder	address	The address whose tokens are being burned.
projectId	uint256	The ID of the project whose tokens are being burned.
tokenCount	uint256	The number of tokens to burn.
memo	string	A memo to pass along to the emitted event.

claimTokensFor

Redeem credits to claim tokens into a beneficiary's account.

Can only be called by the credit holder or an address with the holder's permission to CLAIM_TOKENS.

function claimTokensFor(address holder, uint256 projectId, uint256 tokenCount, address beneficiary) external override;

Parameters

Name	Type	Description
holder	address	The address to redeem credits from.
projectId	uint256	The ID of the project whose tokens are being claimed.
tokenCount	uint256	The number of tokens to claim.
beneficiary	address	The account the claimed tokens will go to.

deployERC20For

Deploys an ERC-20 token for a project. It will be used when claiming tokens (with credits).

Deploys the project's ERC-20 contract.

Can only be called by the project's owner or an address with the owner's permission to DEPLOY_ERC20.

function deployERC20For(
    uint256 projectId,
    string calldata name,
    string calldata symbol,
    bytes32 salt
)
    external
    override
    returns (IJBToken token);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to deploy the ERC-20 for.
name	string	The ERC-20's name.
symbol	string	The ERC-20's symbol.
salt	bytes32	The salt used for ERC-1167 clone deployment. Pass a non-zero salt for deterministic deployment based on msg.sender and the TOKEN implementation address.

Returns

Name	Type	Description
token	IJBToken	The address of the token that was deployed.

executePayReservedTokenToTerminal

When a project receives reserved tokens, if it has a terminal for the token, this is used to pay the terminal.

Can only be called by this controller.

function executePayReservedTokenToTerminal(
    IJBTerminal terminal,
    uint256 projectId,
    IJBToken token,
    uint256 splitTokenCount,
    address beneficiary,
    bytes calldata metadata
)
    external;

Parameters

Name	Type	Description
terminal	IJBTerminal	The terminal to pay.
projectId	uint256	The ID of the project being paid.
token	IJBToken	The token being paid with.
splitTokenCount	uint256	The number of tokens being paid.
beneficiary	address	The payment's beneficiary.
metadata	bytes	The pay metadata sent to the terminal.

launchProjectFor

Creates a project.

This will mint the project's ERC-721 to the owner's address, queue the specified rulesets, and set up the specified splits and terminals. Each operation within this transaction can be done in sequence separately.

Anyone can deploy a project to any owner's address.

function launchProjectFor(
    address owner,
    string calldata projectUri,
    JBRulesetConfig[] calldata rulesetConfigurations,
    JBTerminalConfig[] calldata terminalConfigurations,
    string calldata memo
)
    external
    override
    returns (uint256 projectId);

Parameters

Name	Type	Description
owner	address	The project's owner. The project ERC-721 will be minted to this address.
projectUri	string	The project's metadata URI. This is typically an IPFS hash, optionally with the ipfs:// prefix. This can be updated by the project's owner.
rulesetConfigurations	JBRulesetConfig[]	The rulesets to queue.
terminalConfigurations	JBTerminalConfig[]	The terminals to set up for the project.
memo	string	A memo to pass along to the emitted event.

Returns

Name	Type	Description
projectId	uint256	The project's ID.

launchRulesetsFor

Queue a project's initial rulesets and set up terminals for it. Projects which already have rulesets should use queueRulesetsOf(...).

Each operation within this transaction can be done in sequence separately.

Can only be called by the project's owner or an address with the owner's permission to QUEUE_RULESETS.

function launchRulesetsFor(
    uint256 projectId,
    JBRulesetConfig[] calldata rulesetConfigurations,
    JBTerminalConfig[] calldata terminalConfigurations,
    string calldata memo
)
    external
    override
    returns (uint256 rulesetId);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to launch rulesets for.
rulesetConfigurations	JBRulesetConfig[]	The rulesets to queue.
terminalConfigurations	JBTerminalConfig[]	The terminals to set up.
memo	string	A memo to pass along to the emitted event.

Returns

Name	Type	Description
rulesetId	uint256	The ID of the last successfully queued ruleset.

migrate

Migrate a project from this controller to another one.

Can only be called by the directory.

function migrate(uint256 projectId, IERC165 to) external override;

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to migrate.
to	IERC165	The controller to migrate the project to.

mintTokensOf

Add new project tokens or credits to the specified beneficiary's balance. Optionally, reserve a portion according to the ruleset's reserved percent.

Can only be called by the project's owner, an address with the owner's permission to MINT_TOKENS, one of the project's terminals, or the project's data hook.

If the ruleset's metadata has allowOwnerMinting set to false, this function can only be called by the project's terminals or data hook.

function mintTokensOf(
    uint256 projectId,
    uint256 tokenCount,
    address beneficiary,
    string calldata memo,
    bool useReservedPercent
)
    external
    override
    returns (uint256 beneficiaryTokenCount);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project whose tokens are being minted.
tokenCount	uint256	The number of tokens to mint, including any reserved tokens.
beneficiary	address	The address which will receive the (non-reserved) tokens.
memo	string	A memo to pass along to the emitted event.
useReservedPercent	bool	Whether to apply the ruleset's reserved percent.

Returns

Name	Type	Description
beneficiaryTokenCount	uint256	The number of tokens minted for the beneficiary.

queueRulesetsOf

Add one or more rulesets to the end of a project's ruleset queue. Rulesets take effect after the previous ruleset in the queue ends, and only if they are approved by the previous ruleset's approval hook.

Can only be called by the project's owner or an address with the owner's permission to QUEUE_RULESETS.

function queueRulesetsOf(
    uint256 projectId,
    JBRulesetConfig[] calldata rulesetConfigurations,
    string calldata memo
)
    external
    override
    returns (uint256 rulesetId);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to queue rulesets for.
rulesetConfigurations	JBRulesetConfig[]	The rulesets to queue.
memo	string	A memo to pass along to the emitted event.

Returns

Name	Type	Description
rulesetId	uint256	The ID of the last ruleset which was successfully queued.

beforeReceiveMigrationFrom

Prepares this controller to receive a project being migrated from another controller.

This controller should not be the project's controller yet.

function beforeReceiveMigrationFrom(IERC165 from, uint256 projectId) external override;

Parameters

Name	Type	Description
from	IERC165	The controller being migrated from.
projectId	uint256	The ID of the project that will migrate to this controller.

sendReservedTokensToSplitsOf

Sends a project's pending reserved tokens to its reserved token splits.

If the project has no reserved token splits, or if they don't add up to 100%, leftover tokens are sent to the project's owner.

function sendReservedTokensToSplitsOf(uint256 projectId) external override returns (uint256);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to send reserved tokens for.

Returns

Name	Type	Description
<none>	uint256	The amount of reserved tokens minted and sent.

setSplitGroupsOf

Sets a project's split groups. The new split groups must include any current splits which are locked.

Can only be called by the project's owner or an address with the owner's permission to SET_SPLIT_GROUPS.

function setSplitGroupsOf(
    uint256 projectId,
    uint256 rulesetId,
    JBSplitGroup[] calldata splitGroups
)
    external
    override;

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to set the split groups of.
rulesetId	uint256	The ID of the ruleset the split groups should be active in. Use a rulesetId of 0 to set the default split groups, which are used when a ruleset has no splits set. If there are no default splits and no splits are set, all splits are sent to the project's owner.
splitGroups	JBSplitGroup[]	An array of split groups to set.

setTokenFor

Set a project's token. If the project's token is already set, this will revert.

Can only be called by the project's owner or an address with the owner's permission to SET_TOKEN.

function setTokenFor(uint256 projectId, IJBToken token) external override;

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to set the token of.
token	IJBToken	The new token's address.

setUriOf

Set a project's metadata URI.

This is typically an IPFS hash, optionally with an ipfs:// prefix.

Can only be called by the project's owner or an address with the owner's permission to SET_PROJECT_URI.

function setUriOf(uint256 projectId, string calldata uri) external override;

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to set the metadata URI of.
uri	string	The metadata URI to set.

transferCreditsFrom

Allows a credit holder to transfer credits to another address.

Can only be called by the credit holder or an address with the holder's permission to TRANSFER_CREDITS.

function transferCreditsFrom(
    address holder,
    uint256 projectId,
    address recipient,
    uint256 creditCount
)
    external
    override;

Parameters

Name	Type	Description
holder	address	The address to transfer credits from.
projectId	uint256	The ID of the project whose credits are being transferred.
recipient	address	The address to transfer credits to.
creditCount	uint256	The number of credits to transfer.

_configureTerminals

Set up a project's terminals.

function _configureTerminals(uint256 projectId, JBTerminalConfig[] calldata terminalConfigs) internal;

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to set up terminals for.
terminalConfigs	JBTerminalConfig[]	The terminals to set up.

_queueRulesets

Queues one or more rulesets and stores information pertinent to the configuration.

function _queueRulesets(
    uint256 projectId,
    JBRulesetConfig[] calldata rulesetConfigurations
)
    internal
    returns (uint256 rulesetId);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to queue rulesets for.
rulesetConfigurations	JBRulesetConfig[]	The rulesets being queued.

Returns

Name	Type	Description
rulesetId	uint256	The ID of the last ruleset that was successfully queued.

_sendReservedTokensToSplitsOf

Sends pending reserved tokens to the project's reserved token splits.

If the project has no reserved token splits, or if they don't add up to 100%, leftover tokens are sent to the project's owner.

function _sendReservedTokensToSplitsOf(uint256 projectId) internal returns (uint256 tokenCount);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project to send reserved tokens for.

Returns

Name	Type	Description
tokenCount	uint256	The amount of reserved tokens minted and sent.

_sendReservedTokensToSplitGroupOf

Send project tokens to a split group.

This is used to send reserved tokens to the reserved token split group.

function _sendReservedTokensToSplitGroupOf(
    uint256 projectId,
    uint256 rulesetId,
    uint256 groupId,
    uint256 tokenCount,
    IJBToken token
)
    internal
    returns (uint256 leftoverTokenCount);

Parameters

Name	Type	Description
projectId	uint256	The ID of the project the splits belong to.
rulesetId	uint256	The ID of the split group's ruleset.
groupId	uint256	The ID of the split group.
tokenCount	uint256	The number of tokens to send.
token	IJBToken	The token to send.

Returns

Name	Type	Description
leftoverTokenCount	uint256	If the split percents don't add up to 100%, the leftover amount is returned.

_sendTokens

Send tokens from this contract to a recipient.

function _sendTokens(uint256 projectId, uint256 tokenCount, address recipient, IJBToken token) internal;

Parameters

Name	Type	Description
projectId	uint256	The ID of the project the tokens belong to.
tokenCount	uint256	The number of tokens to send.
recipient	address	The address to send the tokens to.
token	IJBToken	The token to send, if one exists

Errors

JBController_AddingPriceFeedNotAllowed

error JBController_AddingPriceFeedNotAllowed();

JBController_CreditTransfersPaused

error JBController_CreditTransfersPaused();

JBController_InvalidCashOutTaxRate

error JBController_InvalidCashOutTaxRate(uint256 rate, uint256 limit);

JBController_InvalidReservedPercent

error JBController_InvalidReservedPercent(uint256 percent, uint256 limit);

JBController_MintNotAllowedAndNotTerminalOrHook

error JBController_MintNotAllowedAndNotTerminalOrHook();

JBController_NoReservedTokens

error JBController_NoReservedTokens();

JBController_OnlyDirectory

error JBController_OnlyDirectory(address sender, IJBDirectory directory);

JBController_RulesetsAlreadyLaunched

error JBController_RulesetsAlreadyLaunched();

JBController_RulesetsArrayEmpty

error JBController_RulesetsArrayEmpty();

JBController_RulesetSetTokenNotAllowed

error JBController_RulesetSetTokenNotAllowed();

JBController_ZeroTokensToBurn

error JBController_ZeroTokensToBurn();

JBController_ZeroTokensToMint

error JBController_ZeroTokensToMint();