TaxSelect.sol

DirectSelect.sol is an electoral law that enables direct assignment or revocation of a specific role to any account. It provides a mechanism for authorized accounts to manage role assignments without requiring nominations.

Overview

This law provides a mechanism to:

• Directly assign a specific role to any account

• Directly revoke a role from any account

• Track directly assigned accounts

• Enforce maximum role holder limits

Configuration

When adopting a DirectSelect instance, two parameters must be provided:

1. maxRoleHolders (uint256): Maximum number of accounts that can be assigned the role

2. roleID (uint256): The role ID that can be directly assigned/revoked

Usage

Proposing an Action

When calling the law, two parameters must be provided:

1. target (address): The account to assign/revoke the role from

2. assign (bool):

   • true: Assign the role to the target

   • false: Revoke the role from the target

Execution Flow

1. Target Validation

   • Verifies the target address

   • Checks target's current role status

   • Validates maximum role holders limit

2. Role Assignment

   • If assign is true:

     • Checks if target already has the role

     • Verifies maximum role holders limit

     • Assigns role if conditions are met

   • If assign is false:

     • Verifies target has the role

     • Revokes role if conditions are met

3. State Management

   • Updates directly assigned accounts list

   • Maintains sorted list of accounts

   • Records state changes

Technical Specifications

State Variables

struct Data {
    uint256 maxRoleHolders;    // Maximum number of role holders allowed
    uint256 roleId;           // Role ID to directly assign/revoke
    address[] directAssigned; // List of directly assigned accounts
    address[] directAssignedSorted;  // Sorted list of directly assigned accounts
}

mapping(bytes32 lawHash => Data) public data;

Functions

initializeLaw

function initializeLaw(
    uint16 index,
    string memory nameDescription,
    bytes memory inputParams,
    Conditions memory conditions,
    bytes memory config
) public override

• Initializes law with configuration parameters

• Sets up maximum role holders and role ID

• Initializes empty directly assigned lists

handleRequest

function handleRequest(
    address caller,
    address powers,
    uint16 lawId,
    bytes memory lawCalldata,
    uint256 nonce
) public view virtual override returns (
    uint256 actionId,
    address[] memory targets,
    uint256[] memory values,
    bytes[] memory calldatas,
    bytes memory stateChange
)

• Processes the direct assignment request

• Validates target's role status

• Prepares role assignment/revocation call

• Returns execution data

_changeState

function _changeState(
    bytes32 lawHash,
    bytes memory stateChange
) internal override

• Updates directly assigned accounts list

• Maintains sorted list of accounts

• Handles both assignments and revocations

getData

function getData(bytes32 lawHash) public view returns (Data memory)

• Returns the current state of the law

• Includes all configuration and directly assigned accounts

Error Conditions

1. Role Assignment Errors

   • "Account already has role"

   • "Max role holders reached"

2. Role Revocation Errors

   • "Account does not have role"

3. Validation Errors

   • Invalid role ID

   • Invalid target address

   • Zero address target

Current Deployments

Chain ID	Chain Name	Address
421614	Arbitrum Sepolia	0xa797799EE0C6FA7d9b76eF52e993288a04982267
11155420	Optimism Sepolia	0xa797799EE0C6FA7d9b76eF52e993288a04982267
11155111	Ethereum Sepolia	0xa797799EE0C6FA7d9b76eF52e993288a04982267