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51 lines
1.3 KiB
51 lines
1.3 KiB
2 years ago
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// @flow
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/*
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autoMergeLevel1:
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- merges 1 level of substate
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- skips substate if already modified
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*/
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import type { PersistConfig } from '../types'
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export default function autoMergeLevel1<State: Object>(
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inboundState: State,
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originalState: State,
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reducedState: State,
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{ debug }: PersistConfig
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): State {
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let newState = { ...reducedState }
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// only rehydrate if inboundState exists and is an object
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if (inboundState && typeof inboundState === 'object') {
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Object.keys(inboundState).forEach(key => {
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// ignore _persist data
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if (key === '_persist') return
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// if reducer modifies substate, skip auto rehydration
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if (originalState[key] !== reducedState[key]) {
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if (process.env.NODE_ENV !== 'production' && debug)
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console.log(
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'redux-persist/stateReconciler: sub state for key `%s` modified, skipping.',
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key
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)
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return
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}
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// otherwise hard set the new value
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newState[key] = inboundState[key]
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})
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}
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if (
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process.env.NODE_ENV !== 'production' &&
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debug &&
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inboundState &&
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typeof inboundState === 'object'
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)
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console.log(
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`redux-persist/stateReconciler: rehydrated keys '${Object.keys(
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inboundState
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).join(', ')}'`
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)
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return newState
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}
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