IERC 777

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}.

Methods

authorizeOperator

function authorizeOperator(address operator) external nonpayable

Make an account an operator of the caller. See {isOperatorFor}. Emits an {AuthorizedOperator} event. Requirements - operator cannot be calling address.

Parameters

Name	Type	Description
operator	address	undefined

balanceOf

function balanceOf(address owner) external view returns (uint256)

Returns the amount of tokens owned by an account (owner).

Parameters

Name	Type	Description
owner	address	undefined

Returns

Name	Type	Description
_0	uint256	undefined

burn

function burn(uint256 amount, bytes data) external nonpayable

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.

Parameters

Name	Type	Description
amount	uint256	undefined
data	bytes	undefined

defaultOperators

function defaultOperators() external view returns (address[])

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.

Returns

Name	Type	Description
_0	address[]	undefined

granularity

function granularity() external view returns (uint256)

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.

Returns

Name	Type	Description
_0	uint256	undefined

isOperatorFor

function isOperatorFor(address operator, address tokenHolder) external view returns (bool)

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}.

Parameters

Name	Type	Description
operator	address	undefined
tokenHolder	address	undefined

Returns

Name	Type	Description
_0	bool	undefined

name

function name() external view returns (string)

Returns the name of the token.

Returns

Name	Type	Description
_0	string	undefined

operatorBurn

function operatorBurn(address account, uint256 amount, bytes data, bytes operatorData) external nonpayable

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.

Parameters

Name	Type	Description
account	address	undefined
amount	uint256	undefined
data	bytes	undefined
operatorData	bytes	undefined

operatorSend

function operatorSend(address sender, address recipient, uint256 amount, bytes data, bytes operatorData) external nonpayable

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.

Parameters

Name	Type	Description
sender	address	undefined
recipient	address	undefined
amount	uint256	undefined
data	bytes	undefined
operatorData	bytes	undefined

revokeOperator

function revokeOperator(address operator) external nonpayable

Revoke an account's operator status for the caller. See {isOperatorFor} and {defaultOperators}. Emits a {RevokedOperator} event. Requirements - operator cannot be calling address.

Parameters

Name	Type	Description
operator	address	undefined

send

function send(address recipient, uint256 amount, bytes data) external nonpayable

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.

Parameters

Name	Type	Description
recipient	address	undefined
amount	uint256	undefined
data	bytes	undefined

symbol

function symbol() external view returns (string)

Returns the symbol of the token, usually a shorter version of the name.

Returns

Name	Type	Description
_0	string	undefined

totalSupply

function totalSupply() external view returns (uint256)

Returns the amount of tokens in existence.

Returns

Name	Type	Description
_0	uint256	undefined

Events

AuthorizedOperator

event AuthorizedOperator(address indexed operator, address indexed tokenHolder)

Parameters

Name	Type	Description
operator indexed	address	undefined
tokenHolder indexed	address	undefined

Burned

event Burned(address indexed operator, address indexed from, uint256 amount, bytes data, bytes operatorData)

Parameters

Name	Type	Description
operator indexed	address	undefined
from indexed	address	undefined
amount	uint256	undefined
data	bytes	undefined
operatorData	bytes	undefined

Minted

event Minted(address indexed operator, address indexed to, uint256 amount, bytes data, bytes operatorData)

Parameters

Name	Type	Description
operator indexed	address	undefined
to indexed	address	undefined
amount	uint256	undefined
data	bytes	undefined
operatorData	bytes	undefined

RevokedOperator

event RevokedOperator(address indexed operator, address indexed tokenHolder)

Parameters

Name	Type	Description
operator indexed	address	undefined
tokenHolder indexed	address	undefined

Sent

event Sent(address indexed operator, address indexed from, address indexed to, uint256 amount, bytes data, bytes operatorData)

Parameters

Name	Type	Description
operator indexed	address	undefined
from indexed	address	undefined
to indexed	address	undefined
amount	uint256	undefined
data	bytes	undefined
operatorData	bytes	undefined