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These will be available in more contexts than just render.
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Original file line number | Diff line number | Diff line change |
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/** | ||
* Copyright (c) Facebook, Inc. and its affiliates. | ||
* | ||
* This source code is licensed under the MIT license found in the | ||
* LICENSE file in the root directory of this source tree. | ||
* | ||
* @flow | ||
*/ | ||
|
||
import type {CacheDispatcher} from './ReactInternalTypes'; | ||
import type {Cache} from './ReactFiberCacheComponent.new'; | ||
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import {enableCache} from 'shared/ReactFeatureFlags'; | ||
import {readContext} from './ReactFiberNewContext.new'; | ||
import {CacheContext} from './ReactFiberCacheComponent.new'; | ||
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function getCacheSignal(): AbortSignal { | ||
if (!enableCache) { | ||
throw new Error('Not implemented.'); | ||
} | ||
const cache: Cache = readContext(CacheContext); | ||
return cache.controller.signal; | ||
} | ||
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function getCacheForType<T>(resourceType: () => T): T { | ||
if (!enableCache) { | ||
throw new Error('Not implemented.'); | ||
} | ||
const cache: Cache = readContext(CacheContext); | ||
let cacheForType: T | void = (cache.data.get(resourceType): any); | ||
if (cacheForType === undefined) { | ||
cacheForType = resourceType(); | ||
cache.data.set(resourceType, cacheForType); | ||
} | ||
return cacheForType; | ||
} | ||
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export const DefaultCacheDispatcher: CacheDispatcher = { | ||
getCacheSignal, | ||
getCacheForType, | ||
}; |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,41 @@ | ||
/** | ||
* Copyright (c) Facebook, Inc. and its affiliates. | ||
* | ||
* This source code is licensed under the MIT license found in the | ||
* LICENSE file in the root directory of this source tree. | ||
* | ||
* @flow | ||
*/ | ||
|
||
import type {CacheDispatcher} from './ReactInternalTypes'; | ||
import type {Cache} from './ReactFiberCacheComponent.old'; | ||
|
||
import {enableCache} from 'shared/ReactFeatureFlags'; | ||
import {readContext} from './ReactFiberNewContext.old'; | ||
import {CacheContext} from './ReactFiberCacheComponent.old'; | ||
|
||
function getCacheSignal(): AbortSignal { | ||
if (!enableCache) { | ||
throw new Error('Not implemented.'); | ||
} | ||
const cache: Cache = readContext(CacheContext); | ||
return cache.controller.signal; | ||
} | ||
|
||
function getCacheForType<T>(resourceType: () => T): T { | ||
if (!enableCache) { | ||
throw new Error('Not implemented.'); | ||
} | ||
const cache: Cache = readContext(CacheContext); | ||
let cacheForType: T | void = (cache.data.get(resourceType): any); | ||
if (cacheForType === undefined) { | ||
cacheForType = resourceType(); | ||
cache.data.set(resourceType, cacheForType); | ||
} | ||
return cacheForType; | ||
} | ||
|
||
export const DefaultCacheDispatcher: CacheDispatcher = { | ||
getCacheSignal, | ||
getCacheForType, | ||
}; |
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