ERC6551Account

Inherits: IERC6551Account, IERC6551Executable

Title: ERC6551Account

Authors: David Dada <daveproxy80@gmail.com> (https://github.com/dadadave80), Modified from ERC-6551 reference (https://github.com/erc6551/reference)

ERC-6551 token-bound account facet. The Diamond becomes an account owned by a specific ERC-721 token; the token's current owner is the sole valid signer and the only caller of execute.

Stateless delegator — logic/storage live in ERC6551AccountLib. v1 supports operation == 0 (CALL) and resolves ownership only on the token's home chain. The bound token is set once at initialization.

Notes:

lattice-version: 0.1.0
lattice-source: ERC-6551

Functions

receive

The account must be able to receive native value.

receive() external payable virtual;

isValidSigner

Returns the magic value 0x523e3260 if signer is authorized to act for the account in context, else bytes4(0).

function isValidSigner(address signer, bytes calldata context) external view virtual returns (bytes4);

Parameters

Name	Type	Description
signer	`address`
context	`bytes`

Returns

Name	Type	Description
<none>	`bytes4`

state

A value that changes every time the account state changes (e.g. after each execution).

function state() external view virtual returns (uint256);

Returns

Name	Type	Description
<none>	`uint256`

token

The token that owns this account: (chainId, tokenContract, tokenId).

function token() external view virtual returns (uint256 chainId, address tokenContract, uint256 tokenId);

Returns

Name	Type	Description
chainId	`uint256`
tokenContract	`address`
tokenId	`uint256`

execute

Executes a low-level operation if the caller is a valid signer. operation 0 = CALL.

function execute(address to, uint256 value, bytes calldata data, uint8 operation)
        external
        payable
        virtual
        returns (bytes memory);

Parameters

Name	Type	Description
to	`address`
value	`uint256`
data	`bytes`
operation	`uint8`

Returns

Name	Type	Description
<none>	`bytes`

exportSelectors

ERC-8153 selector export: this facet's cuttable selectors, tightly packed (4 bytes each).

Excludes exportSelectors() itself (0x0ef22643) - it is never cut into a diamond. Order matches forge inspect ERC6551Account methodIdentifiers (alphabetical by signature); kept in exact parity by ExportSelectorsParityTest. receive() has no selector and is not exported: behind a diamond, plain ETH transfers reach the cut Receive facet (its export is 0x00000000). Chunks: execute(address,uint256,bytes,uint8) 0x51945447 isValidSigner(address,bytes) 0x523e3260 state() 0xc19d93fb token() 0xfc0c546a

function exportSelectors() external pure virtual returns (bytes memory selectors);

Returns

Name	Type	Description
selectors	`bytes`