PredicateHelper
A helper contract for executing boolean functions on arbitrary target call results
Functions
or
function or(
uint256 offsets,
bytes calldata data
) public view returns(bool)
Calls every target with corresponding data
Parameters:
| Name | Type | Description |
|---|---|---|
offsets | uint256 | |
data | bytes |
Return values
| Type | Description |
|---|---|
| bool | True if call to any target returned True. Otherwise, false |
and
function and(
uint256 offsets,
bytes calldata data
) public view returns(bool)
Checks if a given flag is set for the provided address
Parameters:
| Name | Type | Description |
|---|---|---|
offsets | uint256 | |
data | bytes |
Return values
| Type | Description |
|---|---|
| bool | True if calls to all targets returned True. Otherwise, false |
not
function not(
bytes calldata data
) public view returns(bool)
Calls target with specified data and tests if it's equal to 0
Parameters:
| Name | Type | Description |
|---|---|---|
data | bytes |
Return values
| Type | Description |
|---|---|
| bool | True if call to target returns 0. Otherwise, false |
eq
function eq(
uint256 value,
bytes calldata data
) public view returns(bool)
Calls target with specified data and tests if it's equal to the value
Parameters:
| Name | Type | Description |
|---|---|---|
value | uint256 | Value to test |
data | bytes |
Return values
| Type | Description |
|---|---|
| bool | True if call to target returns the same value as value. Otherwise, false |
lt
function lt(
uint256 value,
bytes calldata data
) public view returns(bool)
Calls target with specified data and tests if it's lower than value
Parameters:
| Name | Type | Description |
|---|---|---|
value | uint256 | Value to test |
data | bytes |
Return values
| Type | Description |
|---|---|
| bool | True if call to target returns value which is lower than value. Otherwise, false |
gt
function gt(
uint256 value,
bytes calldata data
) public view returns(bool)
Calls target with specified data and tests if it's bigger than value
Parameters:
| Name | Type | Description |
|---|---|---|
value | uint256 | Value to test |
data | bytes |
Return values
| Type | Description |
|---|---|
| bool | True if call to target returns value which is bigger than value. Otherwise, false |
arbitraryStaticCall
function arbitraryStaticCall(
address target,
bytes calldata data
) public view returns(uint256)
Performs an arbitrary call to target with data
Parameters:
| Name | Type | Description |
|---|---|---|
target | address | Value to test |
data | bytes |
Return values
| Type | Description |
|---|---|
| uint256 | Bytes transmuted to uint256 |