Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

feat: use React.use API #2596

Merged
merged 1 commit into from
May 3, 2023
Merged
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
45 changes: 43 additions & 2 deletions core/use-swr.ts
Original file line number Diff line number Diff line change
@@ -1,4 +1,10 @@
import { useCallback, useRef, useDebugValue, useMemo } from 'react'
/// <reference types="react/experimental" />
import ReactExports, {
useCallback,
useRef,
useDebugValue,
useMemo
} from 'react'
import { useSyncExternalStore } from 'use-sync-external-store/shim/index.js'

import {
Expand Down Expand Up @@ -36,6 +42,37 @@ import type {
GlobalState
} from 'swr/_internal'

const use =
ReactExports.use ||
(<T>(
promise: Promise<T> & {
status?: 'pending' | 'fulfilled' | 'rejected'
value?: T
reason?: unknown
}
): T => {
if (promise.status === 'pending') {
throw promise
} else if (promise.status === 'fulfilled') {
return promise.value as T
} else if (promise.status === 'rejected') {
throw promise.reason
} else {
promise.status = 'pending'
promise.then(
v => {
promise.status = 'fulfilled'
promise.value = v
},
e => {
promise.status = 'rejected'
promise.reason = e
}
)
throw promise
}
})

const WITH_DEDUPE = { dedupe: true }

type DefinitelyTruthy<T> = false extends T
Expand Down Expand Up @@ -661,7 +698,11 @@ export const useSWRHandler = <Data = any, Error = any>(
fetcherRef.current = fetcher
configRef.current = config
unmountedRef.current = false
throw isUndefined(error) ? revalidate(WITH_DEDUPE) : error
if (isUndefined(error)) {
use(revalidate(WITH_DEDUPE))
} else {
throw error
}
}

return {
Expand Down