# authority docs

## Authority

### \_adapterBySelector

```solidity
mapping(bytes4 => address) _adapterBySelector
```

### \_permission

```solidity
mapping(address => struct IAuthority.Permission) _permission
```

### \_roleToList

```solidity
mapping(enum IAuthority.Role => address[]) _roleToList
```

### onlyWhitelister

```solidity
modifier onlyWhitelister()
```

### constructor

```solidity
constructor(address newOwner) public
```

### addMethod

```solidity
function addMethod(bytes4 selector, address adapter) external
```

Allows a whitelister to whitelist a method. We do not save list of approved as better queried by events.

#### Parameters

| Name     | Type    | Description                                     |
| -------- | ------- | ----------------------------------------------- |
| selector | bytes4  | Bytes4 hex of the method selector.              |
| adapter  | address | Address of the adapter implementing the method. |

### removeMethod

```solidity
function removeMethod(bytes4 selector, address adapter) external
```

Allows a whitelister to remove a method.

#### Parameters

| Name     | Type    | Description                                     |
| -------- | ------- | ----------------------------------------------- |
| selector | bytes4  | Bytes4 hex of the method selector.              |
| adapter  | address | Address of the adapter implementing the method. |

### setWhitelister

```solidity
function setWhitelister(address whitelister, bool isWhitelisted) external
```

Allows the owner to set whitelister permission. Whitelister permission is required to approve methods in extensions adapter.

#### Parameters

| Name          | Type    | Description                 |
| ------------- | ------- | --------------------------- |
| whitelister   | address | Address of the whitelister. |
| isWhitelisted | bool    | Bool whitelisted.           |

### setAdapter

```solidity
function setAdapter(address adapter, bool isWhitelisted) external
```

Allows owner to set extension adapter address.

#### Parameters

| Name          | Type    | Description                    |
| ------------- | ------- | ------------------------------ |
| adapter       | address | Address of the target adapter. |
| isWhitelisted | bool    | Bool whitelisted.              |

### setFactory

```solidity
function setFactory(address factory, bool isWhitelisted) external
```

Allows an admin to set factory permission.

#### Parameters

| Name          | Type    | Description                    |
| ------------- | ------- | ------------------------------ |
| factory       | address | Address of the target factory. |
| isWhitelisted | bool    | Bool whitelisted.              |

### isWhitelistedFactory

```solidity
function isWhitelistedFactory(address target) external view returns (bool)
```

Provides whether a factory is whitelisted.

#### Parameters

| Name   | Type    | Description                    |
| ------ | ------- | ------------------------------ |
| target | address | Address of the target factory. |

#### Return Values

| Name | Type | Description          |
| ---- | ---- | -------------------- |
| \[0] | bool | Bool is whitelisted. |

### getApplicationAdapter

```solidity
function getApplicationAdapter(bytes4 selector) external view returns (address)
```

Returns the address of the adapter associated to the signature.

#### Parameters

| Name     | Type   | Description                  |
| -------- | ------ | ---------------------------- |
| selector | bytes4 | Hex of the method signature. |

#### Return Values

| Name | Type    | Description             |
| ---- | ------- | ----------------------- |
| \[0] | address | Address of the adapter. |

### isWhitelister

```solidity
function isWhitelister(address target) public view returns (bool)
```

Provides whether an address is whitelister.

#### Parameters

| Name   | Type    | Description                        |
| ------ | ------- | ---------------------------------- |
| target | address | Address of the target whitelister. |

#### Return Values

| Name | Type | Description          |
| ---- | ---- | -------------------- |
| \[0] | bool | Bool is whitelisted. |

### \_changePermission

```solidity
function _changePermission(address target, bool isWhitelisted, enum IAuthority.Role role) private
```