packager: Module: better type for transformOptions

Reviewed By: davidaurelio

Differential Revision: D4237808

fbshipit-source-id: 8ca40bc9f8e7ec7cea2aaa8a8562dc63d423cea4

packager/react-packager/src/lib/GlobalTransformCache.js

@@ -18,6 +18,7 @@ const path = require('path');
 const request = require('request');
 const toFixedHex = require('./toFixedHex');
 
+import type {Options as TransformOptions} from '../JSTransformer/worker/worker';
 import type {CachedResult} from './TransformCache';
 
 const SINGLE_REQUEST_MAX_KEYS = 100;
@@ -32,7 +33,7 @@ type FetchProps = {
   filePath: string,
   sourceCode: string,
   transformCacheKey: string,
-  transformOptions: mixed,
+  transformOptions: TransformOptions,
 };
 
 type FetchCallback = (error?: Error, resultURI?: ?CachedResult) => mixed;

packager/react-packager/src/lib/TransformCache.js

@@ -28,6 +28,7 @@ const writeFileAtomicSync = require('write-file-atomic').sync;
 const CACHE_NAME = 'react-native-packager-cache';
 
 type CacheFilePaths = {transformedCode: string, metadata: string};
+import type {Options as TransformOptions} from '../JSTransformer/worker/worker';
 
 /**
  * If packager is running for two different directories, we don't want the
@@ -62,7 +63,7 @@ function hashSourceCode(props: {
  */
 function getCacheFilePaths(props: {
   filePath: string,
-  transformOptions: mixed,
+  transformOptions: TransformOptions,
 }): CacheFilePaths {
   const hasher = imurmurhash()
     .hash(props.filePath)
@@ -117,7 +118,7 @@ function writeSync(props: {
   filePath: string,
   sourceCode: string,
   transformCacheKey: string,
-  transformOptions: mixed,
+  transformOptions: TransformOptions,
   result: CachedResult,
 }): void {
   const cacheFilePath = getCacheFilePaths(props);
@@ -275,7 +276,7 @@ function readMetadataFileSync(
 export type ReadTransformProps = {
   filePath: string,
   sourceCode: string,
-  transformOptions: mixed,
+  transformOptions: TransformOptions,
   transformCacheKey: string,
   cacheOptions: CacheOptions,
 };

packager/react-packager/src/node-haste/Module.js

@@ -23,7 +23,7 @@ const jsonStableStringify = require('json-stable-stringify');
 
 const {join: joinPath, relative: relativePath, extname} = require('path');
 
-import type {TransformedCode} from '../JSTransformer/worker/worker';
+import type {TransformedCode, Options as TransformOptions} from '../JSTransformer/worker/worker';
 import type {ReadTransformProps} from '../lib/TransformCache';
 import type Cache from './Cache';
 import type DependencyGraphHelpers from './DependencyGraph/DependencyGraphHelpers';
@@ -40,7 +40,7 @@ type ReadResult = {
 export type TransformCode = (
   module: Module,
   sourceCode: string,
-  transformOptions: mixed,
+  transformOptions: TransformOptions,
 ) => Promise<TransformedCode>;
 
 export type Options = {
@@ -118,11 +118,11 @@ class Module {
     );
   }
 
-  getCode(transformOptions: Object) {
+  getCode(transformOptions: TransformOptions) {
     return this.read(transformOptions).then(({code}) => code);
   }
 
-  getMap(transformOptions: Object) {
+  getMap(transformOptions: TransformOptions) {
     return this.read(transformOptions).then(({map}) => map);
   }
 
@@ -158,7 +158,7 @@ class Module {
     return this._moduleCache.getPackageForModule(this);
   }
 
-  getDependencies(transformOptions: Object) {
+  getDependencies(transformOptions: TransformOptions) {
     return this.read(transformOptions).then(({dependencies}) => dependencies);
   }
 
@@ -281,7 +281,7 @@ class Module {
    * dependencies, etc. The overall process is to read the cache first, and if
    * it's a miss, we let the worker write to the cache and read it again.
    */
-  read(transformOptions: Object): Promise<ReadResult> {
+  read(transformOptions: TransformOptions): Promise<ReadResult> {
     const key = stableObjectHash(transformOptions || {});
     const promise = this._readPromises.get(key);
     if (promise != null) {