RulesEngineClientERC20

Git Source

Inherits: RulesEngineClient

Author: @mpetersoCode55, @ShaneDuncan602, @TJ-Everett, @VoR0220

This contract is intended to be inherited and implemented by ERC20 token contracts requiring Rules Engine integration.

Abstract contract containing modifiers and functions for integrating ERC20 token operations with the Rules Engine. This contract provides policy checks for mint, transfer, and transferFrom operations, both before and after execution.

Functions

checksPoliciesERC20TransferBefore

Modifier for checking policies before executing the transfer function.

Calls the _checksPoliciesERC20Transfer function to evaluate policies.

modifier checksPoliciesERC20TransferBefore(
    address to,
    uint256 value,
    uint256 balanceFrom,
    uint256 balanceTo,
    uint256 blockTime
);

Parameters

Name	Type	Description
to	address	The receiving address.
value	uint256	The amount to transfer.
balanceFrom	uint256	The sender’s balance before the transfer.
balanceTo	uint256	The receiver’s balance before the transfer.
blockTime	uint256	The current block timestamp.

checksPoliciesERC20TransferAfter

Modifier for checking policies after executing the transfer function.

Calls the _checksPoliciesERC20Transfer function to evaluate policies.

modifier checksPoliciesERC20TransferAfter(
    address to,
    uint256 value,
    uint256 balanceFrom,
    uint256 balanceTo,
    uint256 blockTime
);

Parameters

Name	Type	Description
to	address	The receiving address.
value	uint256	The amount to transfer.
balanceFrom	uint256	The sender’s balance after the transfer.
balanceTo	uint256	The receiver’s balance after the transfer.
blockTime	uint256	The current block timestamp.

checksPoliciesERC20TransferFromBefore

Modifier for checking policies before executing the transferFrom function.

Calls the _checksPoliciesERC20TransferFrom function to evaluate policies.

modifier checksPoliciesERC20TransferFromBefore(
    address from,
    address to,
    uint256 value,
    uint256 balanceFrom,
    uint256 balanceTo,
    uint256 blockTime
);

Parameters

Name	Type	Description
from	address	The sending address.
to	address	The receiving address.
value	uint256	The amount to transfer.
balanceFrom	uint256	The sender’s balance before the transfer.
balanceTo	uint256	The receiver’s balance before the transfer.
blockTime	uint256	The current block timestamp.

checksPoliciesERC20TransferFromAfter

Modifier for checking policies after executing the transferFrom function.

Calls the _checksPoliciesERC20TransferFrom function to evaluate policies.

modifier checksPoliciesERC20TransferFromAfter(
    address from,
    address to,
    uint256 value,
    uint256 balanceFrom,
    uint256 balanceTo,
    uint256 blockTime
);

Parameters

Name	Type	Description
from	address	The sending address.
to	address	The receiving address.
value	uint256	The amount to transfer.
balanceFrom	uint256	The sender’s balance after the transfer.
balanceTo	uint256	The receiver’s balance after the transfer.
blockTime	uint256	The current block timestamp.

checksPoliciesERC20MintBefore

Modifier for checking policies before executing the mint function.

Calls the _checksPoliciesERC20Mint function to evaluate policies.

modifier checksPoliciesERC20MintBefore(
    address to,
    uint256 amount,
    uint256 balanceFrom,
    uint256 balanceTo,
    uint256 blockTime
);

Parameters

Name	Type	Description
to	address	The receiving address.
amount	uint256	The amount to mint.
balanceFrom	uint256	The sender’s balance before the mint.
balanceTo	uint256	The receiver’s balance before the mint.
blockTime	uint256	The current block timestamp.

checksPoliciesERC20MintAfter

Modifier for checking policies after executing the mint function.

Calls the _checksPoliciesERC20Mint function to evaluate policies.

modifier checksPoliciesERC20MintAfter(
    address to,
    uint256 amount,
    uint256 balanceFrom,
    uint256 balanceTo,
    uint256 blockTime
);

Parameters

Name	Type	Description
to	address	The receiving address.
amount	uint256	The amount to mint.
balanceFrom	uint256	The sender’s balance after the mint.
balanceTo	uint256	The receiver’s balance after the mint.
blockTime	uint256	The current block timestamp.

_checksPoliciesERC20Transfer

Calls the Rules Engine to evaluate policies for an ERC20 transfer operation.

Encodes the parameters and invokes the _invokeRulesEngine function.

function _checksPoliciesERC20Transfer(
    address _to,
    uint256 _value,
    uint256 _balanceFrom,
    uint256 _balanceTo,
    uint256 _blockTime
) internal;

Parameters

Name	Type	Description
_to	address	The receiving address.
_value	uint256	The amount to transfer.
_balanceFrom	uint256	The sender’s balance.
_balanceTo	uint256	The receiver’s balance.
_blockTime	uint256	The current block timestamp.

_checksPoliciesERC20TransferFrom

Calls the Rules Engine to evaluate policies for an ERC20 transferFrom operation.

Encodes the parameters and invokes the _invokeRulesEngine function.

function _checksPoliciesERC20TransferFrom(
    address _from,
    address _to,
    uint256 _value,
    uint256 _balanceFrom,
    uint256 _balanceTo,
    uint256 _blockTime
) internal;

Parameters

Name	Type	Description
_from	address	The sending address.
_to	address	The receiving address.
_value	uint256	The amount to transfer.
_balanceFrom	uint256	The sender’s balance.
_balanceTo	uint256	The receiver’s balance.
_blockTime	uint256	The current block timestamp.

_checksPoliciesERC20Mint

Calls the Rules Engine to evaluate policies for an ERC20 mint operation.

Encodes the parameters and invokes the _invokeRulesEngine function.

function _checksPoliciesERC20Mint(
    address _to,
    uint256 _amount,
    uint256 _balanceFrom,
    uint256 _balanceTo,
    uint256 _blockTime
) internal;

Parameters

Name	Type	Description
_to	address	The receiving address.
_amount	uint256	The amount to mint.
_balanceFrom	uint256	The sender’s balance.
_balanceTo	uint256	The receiver’s balance.
_blockTime	uint256	The current block timestamp.