FeedRegistry

State Variables

address internal immutable WRAPPED_NATIVE_TOKEN;

address internal immutable WRAPPED_BTC_TOKEN;

constructor(address _wrappedNativeToken, address _wrappedBTCToken);

Registers mappings of ERC20 token, and denomination (ETH, BTC, or USD) to feed

function batchRegisterFeedMappings(FeedMappingArgs[] memory args) external virtual;

Parameters

Name	Type	Description
`args`	`FeedMappingArgs[]`	The arguments for the new mappings

Returns the feed for token and denomination

function feed(address token, address denomination) external view returns (address);

Parameters

Name	Type	Description
`token`	`address`	The exchange token (ERC20 token)
`denomination`	`address`	The Chainlink token denomination to quote against (ETH, BTC, or USD)

Returns

Name	Type	Description
`<none>`	`address`	The feed address

Returns the feed for token and denomination

function _feed(address token, address denomination) internal view returns (address);

Returns true if a feed exists for token and denomination

function _feedExists(address token, address denomination) internal view returns (bool);

Returns the denomination mapped to token, if it has one

Should only map wrapped tokens which are guaranteed to have a 1:1 ratio

function _tokenToDenomination(address token) internal view returns (address);

Returns the sorted and mapped tokens for tokenA and tokenB

function _mapToDenominationAndSort(address tokenA, address tokenB) internal view returns (address, address);

Returns the mapped tokens for tokenA and tokenB

function _mapToDenomination(address tokenA, address tokenB)
    internal
    view
    returns (address mappedTokenA, address mappedTokenB);