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packager: GlobalTransformCache: reduce asynchronicity for non-cached bundles 

Reviewed By: davidaurelio

Differential Revision: D4745595

fbshipit-source-id: 3126fdcc11dd1c8085316457ead0cabae633d0db
This commit is contained in:
Jean Lauliac 2017-03-21 05:54:08 -07:00 committed by Facebook Github Bot
parent 112a177399
commit 7357a916c3
2 changed files with 5 additions and 4 deletions
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7
packages/metro-bundler/src/lib/GlobalTransformCache.js
View File

@ -247,14 +247,15 @@ class GlobalTransformCache {
});
}
shouldFetch(props: FetchProps): boolean {
return this._profileSet.has(props.transformOptions);
}
/**
* This may return `null` if either the cache doesn't have a value for that
* key yet, or an error happened, processed separately.
*/
async fetch(props: FetchProps): Promise<?CachedResult> {
if (!this._profileSet.has(props.transformOptions)) {
return null;
}
const uri = await this._fetcher.fetch(GlobalTransformCache.keyOf(props));
if (uri == null) {
return null;

2
packages/metro-bundler/src/node-haste/Module.js
View File

@ -303,7 +303,7 @@ class Module {
callback: (error: ?Error, result: ?TransformedCode) => void,
) {
const {_globalCache} = this;
if (_globalCache == null) {
if (_globalCache == null || !_globalCache.shouldFetch(cacheProps)) {
this._transformCodeForCallback(cacheProps, callback);
return;
}