lbry-desktop/ui/component/filePrice/index.js
jessopb a3398843c2
Optimize selectClaimIsMine (#7370)
Frequently used; top in perf profile

Most of the time, you already have the claim object in the current context. `selectClaimIsMineForUri` will retrieve the claim again, which is wasteful, even if it is memoized (looking up the cache still takes time).

Break apart the logic and added the alternative `selectClaimIsMine` for faster lookup.

Co-authored-by: infinite-persistence <inf.persistence@gmail.com>
2021-12-31 12:52:26 -05:00

18 lines
723 B
JavaScript

import { connect } from 'react-redux';
import { selectClaimForUri, makeSelectClaimWasPurchased, selectClaimIsMine } from 'redux/selectors/claims';
import { makeSelectCostInfoForUri, doFetchCostInfoForUri, makeSelectFetchingCostInfoForUri } from 'lbryinc';
import FilePrice from './view';
const select = (state, props) => {
const claim = selectClaimForUri(state, props.uri);
return {
claim,
claimIsMine: selectClaimIsMine(state, claim),
claimWasPurchased: makeSelectClaimWasPurchased(props.uri)(state),
costInfo: makeSelectCostInfoForUri(props.uri)(state),
fetching: makeSelectFetchingCostInfoForUri(props.uri)(state),
};
};
export default connect(select, { doFetchCostInfoForUri })(FilePrice);