# UniswapV2PriceProviderMock

## Overview

#### License: MIT

```solidity
contract UniswapV2PriceProviderMock is PriceProvider, Initializable, AccessControlUpgradeable
```

This implementation can be affected by price manipulation due to not using TWAP. For development purposes only

## Structs info

### PriceInfo

```solidity
struct PriceInfo {
	uint256 price;
	uint8 tokenDecimals;
}
```

### UniswapV2Metadata

```solidity
struct UniswapV2Metadata {
	bool isActive;
	address pair;
	address pairAsset;
	uint8 tokenDecimals;
	uint8 pairAssetDecimals;
}
```

## Events info

### GrantModeratorRole

```solidity
event GrantModeratorRole(address indexed newModerator)
```

### RevokeModeratorRole

```solidity
event RevokeModeratorRole(address indexed moderator)
```

### SetTokenAndPrice

```solidity
event SetTokenAndPrice(address indexed token, uint256 price)
```

### ChangeActive

```solidity
event ChangeActive(address indexed token, bool active)
```

### SetTokenDecimals

```solidity
event SetTokenDecimals(uint8 newTokenDecimals)
```

## Constants info

### MODERATOR\_ROLE (0x797669c9)

```solidity
bytes32 constant MODERATOR_ROLE = keccak256("MODERATOR_ROLE")
```

### DESCRIPTION (0xf1ae8856)

```solidity
string constant DESCRIPTION = "Price provider that uses uniswapV2"
```

## State variables info

### tokenDecimals (0x3b97e856)

```solidity
uint8 tokenDecimals
```

### uniswapV2Metadata (0x809205db)

```solidity
mapping(address => struct UniswapV2PriceProviderMock.UniswapV2Metadata) uniswapV2Metadata
```

### tokenPrice (0x84ba3f69)

```solidity
mapping(address => struct UniswapV2PriceProviderMock.PriceInfo) tokenPrice
```

## Modifiers info

### onlyAdmin

```solidity
modifier onlyAdmin()
```

### onlyModerator

```solidity
modifier onlyModerator()
```

## Functions info

### initialize (0x8129fc1c)

```solidity
function initialize() public initializer
```

### grantModerator (0x6981c7ae)

```solidity
function grantModerator(address newModerator) public onlyAdmin
```

### revokeModerator (0x36445636)

```solidity
function revokeModerator(address moderator) public onlyAdmin
```

### setTokenDecimals (0xf2cf47be)

```solidity
function setTokenDecimals(uint8 newTokenDecimals) public onlyModerator
```

Sets the number of decimals used by the token. Only the moderator can call this function.

Parameters:

| Name             | Type  | Description                                   |
| ---------------- | ----- | --------------------------------------------- |
| newTokenDecimals | uint8 | The new number of decimals used by the token. |

### setTokenAndPrice (0x179750ec)

```solidity
function setTokenAndPrice(address token, uint256 price) public onlyModerator
```

### changeActive (0x258a4532)

```solidity
function changeActive(address token, bool active) public override onlyModerator
```

Changes the active status of a token.

Parameters:

| Name   | Type    | Description                                               |
| ------ | ------- | --------------------------------------------------------- |
| token  | address | The address of the token to change the active status for. |
| active | bool    | The new active status of the token.                       |

### isListed (0xf794062e)

```solidity
function isListed(address token) public view override returns (bool)
```

Returns a boolean indicating whether the given token address is listed in the price provider.

Parameters:

| Name  | Type    | Description                        |
| ----- | ------- | ---------------------------------- |
| token | address | The address of the token to check. |

Return values:

| Name | Type | Description                                              |
| ---- | ---- | -------------------------------------------------------- |
| \[0] | bool | A boolean indicating whether the token is listed or not. |

### isActive (0x9f8a13d7)

```solidity
function isActive(address token) public view override returns (bool)
```

Returns whether a token is active or not.

Parameters:

| Name  | Type    | Description                        |
| ----- | ------- | ---------------------------------- |
| token | address | The address of the token to check. |

Return values:

| Name | Type | Description                                              |
| ---- | ---- | -------------------------------------------------------- |
| \[0] | bool | A boolean indicating whether the token is active or not. |

### getPrice (0x41976e09)

```solidity
function getPrice(
    address token
) public view override returns (uint256 price, uint8 priceDecimals)
```

Returns the price of the specified token.

Parameters:

| Name  | Type    | Description                                    |
| ----- | ------- | ---------------------------------------------- |
| token | address | The address of the token to get the price for. |

Return values:

| Name          | Type    | Description                                        |
| ------------- | ------- | -------------------------------------------------- |
| priceMantissa | uint256 | The price of the token, represented as a mantissa. |
| priceDecimals | uint8   | The number of decimal places in the token's price. |

### getReserves (0x32749461)

```solidity
function getReserves(
    address uniswapPair,
    address tokenA,
    address tokenB
) public view returns (uint256 reserveA, uint256 reserveB)
```

### getPriceDecimals (0x1b30aafc)

```solidity
function getPriceDecimals() public view override returns (uint8)
```

Returns the number of decimal places for the price returned by the price provider.

Return values:

| Name          | Type  | Description                                 |
| ------------- | ----- | ------------------------------------------- |
| priceDecimals | uint8 | The number of decimal places for the price. |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.fringe.fi/v2-smart-contract-documentation/priceoracle/priceproviders/uniswapv2priceprovidermock.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.