# HasAaveBalanceMemoizer

*the memoizer works in the context of a single token and therefore should not be used across multiple tokens.*

## BalanceMemoizer

### Parameters

```solidity
struct BalanceMemoizer {
  uint256 balanceOf;
  bool balanceOfMemoized;
  uint256 balanceOfOverlying;
  bool balanceOfOverlyingMemoized;
  contract IERC20 overlying;
  bool overlyingMemoized;
}
```

## constructor

```solidity
constructor(address addressesProvider) public
```

contract's constructor

### Parameters

| Name              | Type    | Description                        |
| ----------------- | ------- | ---------------------------------- |
| addressesProvider | address | address of AAVE's address provider |

## overlying

```solidity
function overlying(contract IERC20 token, struct HasAaveBalanceMemoizer.BalanceMemoizer memoizer) internal view returns (contract IERC20)
```

Gets the overlying for the token.

### Parameters

| Name     | Type                                          | Description   |
| -------- | --------------------------------------------- | ------------- |
| token    | contract IERC20                               | the token.    |
| memoizer | struct HasAaveBalanceMemoizer.BalanceMemoizer | the memoizer. |

### Return Values

| Name | Type            | Description              |
| ---- | --------------- | ------------------------ |
| \[0] | contract IERC20 | overlying for the token. |

## balanceOfOverlying

```solidity
function balanceOfOverlying(contract IERC20 token, struct HasAaveBalanceMemoizer.BalanceMemoizer memoizer) internal view returns (uint256)
```

Gets the balance for the overlying of the token, or 0 if there is no overlying.

### Parameters

| Name     | Type                                          | Description   |
| -------- | --------------------------------------------- | ------------- |
| token    | contract IERC20                               | the token.    |
| memoizer | struct HasAaveBalanceMemoizer.BalanceMemoizer | the memoizer. |

### Return Values

| Name | Type    | Description                                              |
| ---- | ------- | -------------------------------------------------------- |
| \[0] | uint256 | balance of the overlying, or 0 if there is no overlying. |

## balanceOf

```solidity
function balanceOf(contract IERC20 token, struct HasAaveBalanceMemoizer.BalanceMemoizer memoizer) internal view returns (uint256)
```

Gets the balance of the token

### Parameters

| Name     | Type                                          | Description   |
| -------- | --------------------------------------------- | ------------- |
| token    | contract IERC20                               | the token.    |
| memoizer | struct HasAaveBalanceMemoizer.BalanceMemoizer | the memoizer. |

### Return Values

| Name | Type    | Description           |
| ---- | ------- | --------------------- |
| \[0] | uint256 | balance of the token. |