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# ApplicationsLib

## ApplicationsSlot

```solidity
struct ApplicationsSlot {
  uint256 packedApplications;
}
```

## ApplicationsLib

### ApplicationIndexBitmaskRange

```solidity
error ApplicationIndexBitmaskRange()
```

### storeApplication

```solidity
function storeApplication(struct ApplicationsSlot self, uint256 appIndex) internal
```

Sets an application as active in the bitmask.

#### Parameters

| Name     | Type                    | Description                                                |
| -------- | ----------------------- | ---------------------------------------------------------- |
| self     | struct ApplicationsSlot | The storage slot where the packed applications are stored. |
| appIndex | uint256                 | The application to set as active.                          |

### removeApplication

```solidity
function removeApplication(struct ApplicationsSlot self, uint256 appIndex) internal
```

Removes an application from being active in the bitmask.

#### Parameters

| Name     | Type                    | Description                                                |
| -------- | ----------------------- | ---------------------------------------------------------- |
| self     | struct ApplicationsSlot | The storage slot where the packed applications are stored. |
| appIndex | uint256                 | The application to remove.                                 |

### isActiveApplication

```solidity
function isActiveApplication(uint256 packedApplications, uint256 appIndex) internal pure returns (bool)
```

Checks if an application is active in the bitmask.

#### Parameters

| Name               | Type    | Description                                  |
| ------------------ | ------- | -------------------------------------------- |
| packedApplications | uint256 | The bitmap packed active applications flags. |
| appIndex           | uint256 | The application to check.                    |

#### Return Values

| Name | Type | Description                             |
| ---- | ---- | --------------------------------------- |
| \[0] | bool | bool Whether the application is active. |

### shouldQueryApp

```solidity
function shouldQueryApp(uint256 packedApplications, uint256 appIndex) internal pure returns (bool)
```

Returns whether an application should be queried for token balances.

*GRG\_STAKING is always queried: it is a pre-existing application that self-activates on the first NAV write, so the active-bit may not be set yet on a fresh pool.*

#### Parameters

| Name               | Type    | Description                                  |
| ------------------ | ------- | -------------------------------------------- |
| packedApplications | uint256 | The bitmap packed active applications flags. |
| appIndex           | uint256 | The application to check.                    |

#### Return Values

| Name | Type | Description                                     |
| ---- | ---- | ----------------------------------------------- |
| \[0] | bool | bool Whether the application should be queried. |