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Chainlink deprecated function detector#

Name: chainlink-deprecated-function

Reports usage of deprecated Chainlink functions that should be replaced with their newer alternatives. These functions are part of the older Chainlink price feed interface and have been superseded by more recent versions.

Example#

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pragma solidity 0.8.0;

contract C {
    function getPrice() public view returns (int256) {
        return AggregatorV2V3Interface(priceFeed).latestAnswer(); // (1)!
    }

    function getTimestamp() public view returns (uint256) {
        return AggregatorV2V3Interface(priceFeed).latestTimestamp(); // (2)!
    }

    function getLatestRound() public view returns (uint256) {
        return AggregatorV2V3Interface(priceFeed).latestRound(); // (3)!
    }

    function getRoundData(uint256 roundId) public view returns (int256) {
        return AggregatorV2V3Interface(priceFeed).getAnswer(roundId); // (4)!
    }

    function getRoundTimestamp(uint256 roundId) public view returns (uint256) {
        return AggregatorV2V3Interface(priceFeed).getTimestamp(roundId); // (5)!
    }
}
  1. latestAnswer() is deprecated. Use latestRoundData() instead.
  2. latestTimestamp() is deprecated. Use latestRoundData() instead.
  3. latestRound() is deprecated. Use latestRoundData() instead.
  4. getAnswer(uint256) is deprecated. Use getRoundData(uint80) instead.
  5. getTimestamp(uint256) is deprecated. Use getRoundData(uint80) instead.

Parameters#

The detector does not accept any additional parameters.