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metro-bundler: elaborate the global cache test a bit 

Reviewed By: davidaurelio

Differential Revision: D5650882

fbshipit-source-id: b1f283f00e6e200f3b731126ed7a273fe782aeaa
This commit is contained in:
Jean Lauliac 2017-08-18 04:04:54 -07:00 committed by Facebook Github Bot
parent 55986976b1
commit 936b8c31e7
1 changed files with 13 additions and 10 deletions
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23
packages/metro-bundler/src/lib/GlobalTransformCache.js
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@ -50,13 +50,14 @@ export type GlobalTransformCache = {
fetch(props: FetchProps): Promise<?CachedResult>,
/**
* Try to store a result, without waiting for the success or failure of the
* operation. Consequently, the actual storage operation could be done at a
* much later point if desired. It is recommended to actually have this
* function be a no-op in production, and only do the storage operation from
* a script running on your Continuous Integration platform.
* Try to store a result. Callsites won't necessarily wait for the success or
* failure of the Promise, so errors may be handled internally, they may
* otherwise be silently ignored. The actual storage operation could be done
* at a later point if desired. It is recommended to have this function be a
* no-op in production, and only do the storage operation from a script
* running on a Continuous Integration platform.
*/
store(props: FetchProps, result: CachedResult): void,
store(props: FetchProps, result: CachedResult): Promise<void>,
};
type FetchResultURIs = (keys: Array<string>) => Promise<Map<string, string>>;
@ -112,6 +113,7 @@ type KeyedResult = {key: string, result: CachedResult};
class KeyResultStore {
_storeResults: StoreResults;
_batchProcessor: BatchProcessor<KeyedResult, void>;
_promises: Array<Promise<void>>;
async _processResults(keyResults: Array<KeyedResult>): Promise<Array<void>> {
const resultsByKey = new Map(
@ -121,8 +123,8 @@ class KeyResultStore {
return new Array(keyResults.length);
}
store(key: string, result: CachedResult) {
this._batchProcessor.queue({key, result});
async store(key: string, result: CachedResult): Promise<void> {
await this._batchProcessor.queue({key, result});
}
constructor(storeResults: StoreResults) {
@ -135,6 +137,7 @@ class KeyResultStore {
},
this._processResults.bind(this),
);
this._promises = [];
}
}
@ -346,9 +349,9 @@ class URIBasedGlobalTransformCache {
return await this._fetchResultFromURI(uri);
}
store(props: FetchProps, result: CachedResult) {
async store(props: FetchProps, result: CachedResult): Promise<void> {
if (this._store != null) {
this._store.store(this.keyOf(props), result);
await this._store.store(this.keyOf(props), result);
}
}
}