More cleanup to unused method/props on Module/ModuleCache

Reviewed By: jeanlauliac

Differential Revision: D7894078

fbshipit-source-id: 74616cdb6ff1bd71a34a5a53fb5ab031adf23f5a

packages/metro/src/Bundler/__tests__/Bundler-test.js

@@ -116,11 +116,7 @@ describe('Bundler', function() {
       });
     });
 
-    const module = new Module({
-      file: '/root/foo.js',
-      localPath: 'foo.js',
-      experimentalCaches: true,
-    });
+    const module = new Module('/root/foo.js');
 
     require('../../JSTransformer').prototype.transform.mockReturnValue({
       sha1: 'abcdefabcdefabcdefabcdefabcdefabcdefabcd',

packages/metro/src/DeltaBundler/__tests__/traverseDependencies-integration-test.js

@@ -3578,45 +3578,6 @@ describe('traverseDependencies', function() {
     });
   });
 
-  describe('getModuleForPath()', () => {
-    let DependencyGraph;
-    let dependencyGraph;
-
-    beforeEach(async () => {
-      setMockFileSystem({
-        root: {
-          'index.js': ``,
-          imgs: {
-            'a.png': '',
-          },
-        },
-      });
-
-      DependencyGraph = require('../../node-haste/DependencyGraph');
-      dependencyGraph = await DependencyGraph.load(
-        {
-          ...defaults,
-          projectRoots: ['/root'],
-        },
-        false /* since we're mocking the filesystem, we cannot use watchman */,
-      );
-    });
-
-    afterEach(() => {
-      dependencyGraph.end();
-    });
-
-    it('returns correctly a JS module', async () => {
-      const module = dependencyGraph.getModuleForPath('/root/index.js');
-      expect(module.path).toBe('/root/index.js');
-    });
-
-    it('returns correctly an asset module', async () => {
-      const module = dependencyGraph.getModuleForPath('/root/imgs/a.png');
-      expect(module.path).toBe('/root/imgs/a.png');
-    });
-  });
-
   /**
    * When running a test on the dependency graph, watch mode is enabled by
    * default, so we must end the watcher to ensure the test does not hang up

packages/metro/src/lib/transformHelpers.js

@@ -113,13 +113,8 @@ async function getResolveDependencyFn(
 ): Promise<(from: string, to: string) => string> {
   const dependencyGraph = await bundler.getDependencyGraph();
 
-  return (from: string, to: string) => {
-    return dependencyGraph.resolveDependency(
-      dependencyGraph.getModuleForPath(from),
-      to,
-      platform,
-    ).path;
-  };
+  return (from: string, to: string) =>
+    dependencyGraph.resolveDependency(from, to, platform);
 }
 
 module.exports = {

packages/metro/src/node-haste/DependencyGraph.js

@@ -184,14 +184,9 @@ class DependencyGraph extends EventEmitter {
 
   _createModuleCache() {
     const {_opts} = this;
-    return new ModuleCache(
-      {
-        getClosestPackage: this._getClosestPackage.bind(this),
-        hasteImplModulePath: _opts.hasteImplModulePath,
-        roots: _opts.projectRoots,
-      },
-      _opts.platforms,
-    );
+    return new ModuleCache({
+      getClosestPackage: this._getClosestPackage.bind(this),
+    });
   }
 
   getSha1(filename: string): string {
@@ -212,24 +207,16 @@ class DependencyGraph extends EventEmitter {
     this._haste.end();
   }
 
-  getModuleForPath(entryFile: string): Module {
-    return this._moduleCache.getModule(entryFile);
-  }
-
-  resolveDependency(
-    fromModule: Module,
-    toModuleName: string,
-    platform: ?string,
-  ): Module {
+  resolveDependency(from: string, to: string, platform: ?string): string {
     const req = new ResolutionRequest({
       moduleResolver: this._moduleResolver,
-      entryPath: fromModule.path,
+      entryPath: from,
       helpers: this._helpers,
       platform: platform || null,
       moduleCache: this._moduleCache,
     });
 
-    return req.resolveDependency(fromModule, toModuleName);
+    return req.resolveDependency(this._moduleCache.getModule(from), to).path;
   }
 
   _doesFileExist = (filePath: string): boolean => {

packages/metro/src/node-haste/Module.js

@@ -13,29 +13,19 @@
 const isAbsolutePath = require('absolute-path');
 
 import type ModuleCache from './ModuleCache';
-import type {LocalPath} from './lib/toLocalPath';
-
-export type ConstructorArgs = {
-  file: string,
-  localPath: LocalPath,
-  moduleCache: ModuleCache,
-};
 
 class Module {
-  localPath: LocalPath;
   path: string;
 
   _moduleCache: ModuleCache;
   _sourceCode: ?string;
 
-  constructor({file, localPath, moduleCache}: ConstructorArgs) {
+  constructor(file: string, moduleCache: ModuleCache) {
     if (!isAbsolutePath(file)) {
       throw new Error('Expected file to be absolute path but got ' + file);
     }
 
-    this.localPath = localPath;
     this.path = file;
-
     this._moduleCache = moduleCache;
   }
 

packages/metro/src/node-haste/ModuleCache.js

@@ -13,52 +13,28 @@
 const Module = require('./Module');
 const Package = require('./Package');
 
-const toLocalPath = require('./lib/toLocalPath');
-
 type GetClosestPackageFn = (filePath: string) => ?string;
 
-type Options = {|
-  hasteImplModulePath?: string,
-  getClosestPackage: GetClosestPackageFn,
-  roots: $ReadOnlyArray<string>,
-|};
-
 class ModuleCache {
   _getClosestPackage: GetClosestPackageFn;
   _moduleCache: {[filePath: string]: Module, __proto__: null};
   _packageCache: {[filePath: string]: Package, __proto__: null};
   _packageModuleMap: WeakMap<Module, string>;
-  _platforms: Set<string>;
-  _roots: $ReadOnlyArray<string>;
-  _opts: Options;
 
-  constructor(options: Options, platforms: Set<string>) {
-    const {getClosestPackage, roots} = options;
-    this._opts = options;
-    this._getClosestPackage = getClosestPackage;
+  constructor(options: {getClosestPackage: GetClosestPackageFn}) {
+    this._getClosestPackage = options.getClosestPackage;
     this._moduleCache = Object.create(null);
     this._packageCache = Object.create(null);
     this._packageModuleMap = new WeakMap();
-    this._platforms = platforms;
-    this._roots = roots;
   }
 
   getModule(filePath: string) {
     if (!this._moduleCache[filePath]) {
-      this._moduleCache[filePath] = new Module({
-        file: filePath,
-        localPath: toLocalPath(this._roots, filePath),
-        moduleCache: this,
-        options: this._getModuleOptions(),
-      });
+      this._moduleCache[filePath] = new Module(filePath, this);
     }
     return this._moduleCache[filePath];
   }
 
-  getAllModules() {
-    return this._moduleCache;
-  }
-
   getPackage(filePath: string): Package {
     if (!this._packageCache[filePath]) {
       this._packageCache[filePath] = new Package({
@@ -97,12 +73,6 @@ class ModuleCache {
       delete this._packageCache[filePath];
     }
   }
-
-  _getModuleOptions() {
-    return {
-      hasteImplModulePath: this._opts.hasteImplModulePath,
-    };
-  }
 }
 
 module.exports = ModuleCache;

packages/metro/src/node-haste/__tests__/Module-test.js

@@ -20,15 +20,10 @@ describe('Module', () => {
   beforeEach(() => {
     moduleCache = new ModuleCache({});
 
-    module = new Module({
-      file: '/root/to/file.js',
-      localPath: 'file.js',
-      moduleCache,
-    });
+    module = new Module('/root/to/file.js', moduleCache);
   });
 
   it('Returns the correct values for many properties and methods', () => {
-    expect(module.localPath).toBe('file.js');
     expect(module.path).toBe('/root/to/file.js');
   });
 });