Remove Resolver module

Reviewed By: jeanlauliac Differential Revision: D6674419 fbshipit-source-id: 75cd9dbbc90725850ce23b62c9c8c50922145dd3
2025-02-22 15:58:13 +00:00 · 2018-01-09 17:40:55 -08:00 · 2018-01-09 17:40:55 -08:00 · bdaddb2585
commit bdaddb2585
parent a5b0f236e4
10 changed files with 181 additions and 244 deletions
--- a/packages/metro/src/Bundler/tests/Bundler-test.js
+++ b/packages/metro/src/Bundler/tests/Bundler-test.js
@ -22,12 +22,10 @@ jest
  .mock('progress')
  .mock('../../node-haste/DependencyGraph')
  .mock('../../JSTransformer')
-  .mock('../../Resolver')
  .mock('metro-core')
  .mock('/path/to/transformer.js', () => ({}), {virtual: true});

 var Bundler = require('../');
-var Resolver = require('../../Resolver');
 var defaults = require('../../defaults');
 var sizeOf = require('image-size');
 var fs = require('fs');
@ -62,10 +60,6 @@ describe('Bundler', function() {

    projectRoots = ['/root'];

-    Resolver.load = jest
-      .fn()
-      .mockImplementation(opts => Promise.resolve(new Resolver(opts)));
-
    fs.__setMockFilesystem({
      path: {to: {'transformer.js': ''}},
    });
--- a/packages/metro/src/Bundler/index.js
+++ b/packages/metro/src/Bundler/index.js
@ -12,7 +12,7 @@

 'use strict';

-const Resolver = require('../Resolver');
+const DependencyGraph = require('../node-haste/DependencyGraph');
 const Transformer = require('../JSTransformer');

 const assert = require('assert');
@ -105,7 +105,7 @@ export type Options = {|
 class Bundler {
  _opts: Options;
  _transformer: Transformer;
-  _resolverPromise: Promise<Resolver>;
+  _depGraphPromise: Promise<DependencyGraph>;
  _projectRoots: $ReadOnlyArray<string>;
  _getTransformOptions: void | GetTransformOptions;

@ -126,7 +126,7 @@ class Bundler {
      opts.workerPath || undefined,
    );

-    this._resolverPromise = Resolver.load({
+    this._depGraphPromise = DependencyGraph.load({
      assetExts: opts.assetExts,
      assetRegistryPath: opts.assetRegistryPath,
      blacklistRE: opts.blacklistRE,
@ -172,11 +172,8 @@ class Bundler {

  async end() {
    this._transformer.kill();
-    await this._resolverPromise.then(resolver =>
-      resolver
-        .getDependencyGraph()
-        .getWatcher()
-        .end(),
+    await this._depGraphPromise.then(dependencyGraph =>
+      dependencyGraph.getWatcher().end(),
    );
  }

@ -248,8 +245,8 @@ class Bundler {
    };
  }

-  getResolver(): Promise<Resolver> {
-    return this._resolverPromise;
+  getDependencyGraph(): Promise<DependencyGraph> {
+    return this._depGraphPromise;
  }

  async minifyModule(
--- a/packages/metro/src/DeltaBundler/DeltaTransformer.js
+++ b/packages/metro/src/DeltaBundler/DeltaTransformer.js
@ -25,8 +25,8 @@ const {EventEmitter} = require('events');

 import type Bundler from '../Bundler';
 import type {Options as JSTransformerOptions} from '../JSTransformer/worker';
-import type Resolver from '../Resolver';
 import type {CompactRawMappings} from '../lib/SourceMap';
+import type DependencyGraph from '../node-haste/DependencyGraph';
 import type Module from '../node-haste/Module';
 import type {Options as BundleOptions, MainOptions} from './';
 import type {DependencyEdges} from './traverseDependencies';
@ -78,7 +78,7 @@ const globalCreateModuleId = createModuleIdFactory();
 */
 class DeltaTransformer extends EventEmitter {
  _bundler: Bundler;
-  _resolver: Resolver;
+  _dependencyGraph: DependencyGraph;
  _getPolyfills: ({platform: ?string}) => $ReadOnlyArray<string>;
  _polyfillModuleNames: $ReadOnlyArray<string>;
  _getModuleId: (path: string) => number;
@ -88,7 +88,7 @@ class DeltaTransformer extends EventEmitter {

  constructor(
    bundler: Bundler,
-    resolver: Resolver,
+    dependencyGraph: DependencyGraph,
    deltaCalculator: DeltaCalculator,
    options: MainOptions,
    bundleOptions: BundleOptions,
@ -96,7 +96,7 @@ class DeltaTransformer extends EventEmitter {
    super();

    this._bundler = bundler;
-    this._resolver = resolver;
+    this._dependencyGraph = dependencyGraph;
    this._deltaCalculator = deltaCalculator;
    this._getPolyfills = options.getPolyfills;
    this._polyfillModuleNames = options.polyfillModuleNames;
@ -121,17 +121,17 @@ class DeltaTransformer extends EventEmitter {
    options: MainOptions,
    bundleOptions: BundleOptions,
  ): Promise<DeltaTransformer> {
-    const resolver = await bundler.getResolver();
+    const dependencyGraph = await bundler.getDependencyGraph();

    const deltaCalculator = new DeltaCalculator(
      bundler,
-      resolver.getDependencyGraph(),
+      dependencyGraph,
      bundleOptions,
    );

    return new DeltaTransformer(
      bundler,
-      resolver,
+      dependencyGraph,
      deltaCalculator,
      options,
      bundleOptions,
@ -335,7 +335,7 @@ class DeltaTransformer extends EventEmitter {
    const modules = this._getModuleSystemDependencies()
      .concat(polyfillModuleNames)
      .map(polyfillModuleName =>
-        this._resolver.getDependencyGraph().createPolyfill({
+        this._dependencyGraph.createPolyfill({
          file: polyfillModuleName,
          id: polyfillModuleName,
          dependencies: [],
@ -350,12 +350,10 @@ class DeltaTransformer extends EventEmitter {
  }

  async _getAppend(dependencyEdges: DependencyEdges): Promise<DeltaEntries> {
-    const dependencyGraph = this._resolver.getDependencyGraph();
-
    // Get the absolute path of the entry file, in order to be able to get the
    // actual correspondant module (and its moduleId) to be able to add the
    // correct require(); call at the very end of the bundle.
-    const entryPointModulePath = dependencyGraph.getAbsolutePath(
+    const entryPointModulePath = this._dependencyGraph.getAbsolutePath(
      this._bundleOptions.entryFile,
    );

--- a/packages/metro/src/DeltaBundler/tests/DeltaCalculator-test.js
+++ b/packages/metro/src/DeltaBundler/tests/DeltaCalculator-test.js
@ -13,7 +13,6 @@
 'use strict';

 jest.mock('../../Bundler');
-jest.mock('../../Resolver');
 jest.mock('../traverseDependencies');

 const Bundler = require('../../Bundler');
--- a/packages/metro/src/DeltaBundler/tests/DeltaTransformer-test.js
+++ b/packages/metro/src/DeltaBundler/tests/DeltaTransformer-test.js
@ -16,6 +16,7 @@ jest
  .mock('assert')
  .mock('progress')
  .mock('../DeltaCalculator')
+  .mock('../../node-haste/DependencyGraph')
  .mock('../../JSTransformer')
  .mock('/root/to/something.js', () => ({}), {virtual: true})
  .mock('/path/to/transformer.js', () => ({}), {virtual: true});
@ -23,8 +24,8 @@ jest
 const fs = require('fs');

 const Bundler = require('../../Bundler');
-const Resolver = require('../../Resolver');
 const DeltaTransformer = require('../DeltaTransformer');
+const DependencyGraph = require('../../node-haste/DependencyGraph');

 const defaults = require('../../defaults');

@ -48,9 +49,9 @@ const bundlerOptions = {
 describe('DeltaTransformer', () => {
  let bundler;
  beforeEach(() => {
-    Resolver.load = jest
+    DependencyGraph.load = jest
      .fn()
-      .mockImplementation(opts => Promise.resolve(new Resolver(opts)));
+      .mockImplementation(opts => Promise.resolve(new DependencyGraph(opts)));

    fs.__setMockFilesystem({
      path: {to: {'transformer.js': ''}},
--- a/packages/metro/src/DeltaBundler/tests/traverseDependencies-integration-test.js
+++ b/packages/metro/src/DeltaBundler/tests/traverseDependencies-integration-test.js
@ -103,12 +103,10 @@ describe('traverseDependencies', function() {
    emptyTransformOptions = {transformer: {transform: {}}};
    defaults = {
      assetExts: ['png', 'jpg'],
-      forceNodeFilesystemAPI: true,
+      // This pattern is not expected to match anything.
+      blacklistRE: /.^/,
      providesModuleNodeModules: ['haste-fbjs', 'react-haste', 'react-native'],
      platforms: new Set(['ios', 'android']),
-      useWatchman: false,
-      // This pattern is not expected to match anything.
-      ignorePattern: /.^/,
      maxWorkers: 1,
      resetCache: true,
      transformCache: require('TransformCaching').mocked(),
@ -164,7 +162,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -219,7 +217,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -261,7 +259,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -305,7 +303,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -353,7 +351,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -397,7 +395,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -446,7 +444,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -509,7 +507,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -568,7 +566,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -613,7 +611,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -658,7 +656,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -711,7 +709,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -757,7 +755,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -798,7 +796,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -840,7 +838,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -879,7 +877,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -922,7 +920,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -959,7 +957,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -987,7 +985,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};

      // FIXME: This is broken, jest-haste-map does not fatal on modules with
      // the same name, because not fataling was required for supporting some
@ -1022,7 +1020,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        try {
          await getOrderedDependenciesAsJSON(dgraph, '/root/index.js');
@ -1060,7 +1058,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -1113,7 +1111,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -1202,7 +1200,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1263,7 +1261,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1322,7 +1320,11 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, assetExts: ['png', 'jpg'], roots: [root]};
+          const opts = {
+            ...defaults,
+            assetExts: ['png', 'jpg'],
+            projectRoots: [root],
+          };
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1379,7 +1381,11 @@ describe('traverseDependencies', function() {
          },
        });

-        const opts = {...defaults, assetExts: ['png', 'jpg'], roots: [root]};
+        const opts = {
+          ...defaults,
+          assetExts: ['png', 'jpg'],
+          projectRoots: [root],
+        };
        await processDgraph(opts, async dgraph => {
          const deps = await getOrderedDependenciesAsJSON(
            dgraph,
@ -1439,7 +1445,11 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, assetExts: ['png', 'jpg'], roots: [root]};
+          const opts = {
+            ...defaults,
+            assetExts: ['png', 'jpg'],
+            projectRoots: [root],
+          };
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1513,7 +1523,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1608,7 +1618,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1682,7 +1692,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1763,7 +1773,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1834,7 +1844,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1901,7 +1911,7 @@ describe('traverseDependencies', function() {
            },
          });

-          const opts = {...defaults, roots: [root]};
+          const opts = {...defaults, projectRoots: [root]};
          await processDgraph(opts, async dgraph => {
            const deps = await getOrderedDependenciesAsJSON(
              dgraph,
@ -1980,7 +1990,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2028,7 +2038,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2135,7 +2145,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2204,7 +2214,7 @@ describe('traverseDependencies', function() {

      const opts = {
        ...defaults,
-        roots: [root],
+        projectRoots: [root],
        extraNodeModules: {
          bar: root + '/provides-bar',
        },
@ -2252,7 +2262,7 @@ describe('traverseDependencies', function() {

      const opts = {
        ...defaults,
-        roots: [root],
+        projectRoots: [root],
        extraNodeModules: {
          bar: root + '/provides-bar',
        },
@ -2295,7 +2305,7 @@ describe('traverseDependencies', function() {

      const opts = {
        ...defaults,
-        roots: [root],
+        projectRoots: [root],
        extraNodeModules: {
          bar: root + '/provides-bar',
        },
@ -2359,7 +2369,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2406,7 +2416,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2455,7 +2465,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2549,7 +2559,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2617,7 +2627,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2690,7 +2700,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2773,7 +2783,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2845,7 +2855,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -2974,7 +2984,7 @@ describe('traverseDependencies', function() {
      };
      setMockFileSystem(filesystem);

-      const opts = {...defaults, roots: [root, otherRoot]};
+      const opts = {...defaults, projectRoots: [root, otherRoot]};
      await processDgraph(opts, async dgraph => {
        try {
          await getOrderedDependenciesAsJSON(dgraph, '/root/index.js');
@ -3070,7 +3080,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3117,7 +3127,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3170,7 +3180,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3227,7 +3237,7 @@ describe('traverseDependencies', function() {
      const opts = {
        ...defaults,
        platforms: new Set(['ios', 'android', 'web']),
-        roots: [root],
+        projectRoots: [root],
      };
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
@ -3269,7 +3279,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3324,7 +3334,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3377,7 +3387,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3464,7 +3474,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3532,7 +3542,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3605,7 +3615,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3688,7 +3698,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3760,7 +3770,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -3889,7 +3899,7 @@ describe('traverseDependencies', function() {
      };
      setMockFileSystem(filesystem);

-      const opts = {...defaults, roots: [root, otherRoot]};
+      const opts = {...defaults, projectRoots: [root, otherRoot]};
      const entryPath = 'C:\\root\\index.js';
      await processDgraph(opts, async dgraph => {
        try {
@ -3984,7 +3994,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -4031,7 +4041,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -4084,7 +4094,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -4138,7 +4148,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -4179,7 +4189,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -4234,7 +4244,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -4316,7 +4326,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4372,7 +4382,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4428,7 +4438,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4475,7 +4485,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4544,7 +4554,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, assetExts: ['png'], roots: [root]};
+      const opts = {...defaults, assetExts: ['png'], projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        try {
@ -4603,7 +4613,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4660,7 +4670,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4732,7 +4742,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4816,7 +4826,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4873,7 +4883,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4900,7 +4910,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      const entryPath = '/root/index.js';
      await processDgraph(opts, async dgraph => {
        await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4960,7 +4970,11 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root], sourceExts: ['jsx', 'coffee']};
+      const opts = {
+        ...defaults,
+        projectRoots: [root],
+        sourceExts: ['jsx', 'coffee'],
+      };
      await processDgraph(opts, async dgraph => {
        const entryPath = '/root/index.jsx';
        const deps = await getOrderedDependenciesAsJSON(dgraph, entryPath);
@ -4993,7 +5007,11 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root], sourceExts: ['jsx', 'coffee']};
+      const opts = {
+        ...defaults,
+        projectRoots: [root],
+        sourceExts: ['jsx', 'coffee'],
+      };
      await processDgraph(opts, async dgraph => {
        const deps = await getOrderedDependenciesAsJSON(
          dgraph,
@ -5028,7 +5046,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, roots: [root]};
+      const opts = {...defaults, projectRoots: [root]};
      await processDgraph(opts, async dgraph => {
        try {
          await getOrderedDependenciesAsJSON(dgraph, '/root/index.jsx');
@ -5082,10 +5100,13 @@ describe('traverseDependencies', function() {
        },
      });
      const DependencyGraph = require('../../node-haste/DependencyGraph');
-      return DependencyGraph.load({
-        ...defaults,
-        roots: ['/root'],
-      }).then(dg => {
+      return DependencyGraph.load(
+        {
+          ...defaults,
+          projectRoots: ['/root'],
+        },
+        false /* since we're mocking the filesystem, we cannot use watchman */,
+      ).then(dg => {
        dependencyGraph = dg;
      });
    });
@ -5130,7 +5151,7 @@ describe('traverseDependencies', function() {
        },
      });

-      const opts = {...defaults, assetDependencies, roots: ['/root']};
+      const opts = {...defaults, assetDependencies, projectRoots: ['/root']};
      await processDgraph(opts, async dgraph => {
        const {dependencies} = await dgraph.getDependencies({
          entryPath: '/root/index.js',
@ -5170,10 +5191,13 @@ describe('traverseDependencies', function() {
          'f.js': 'require("./c");', // circular dependency
        },
      });
-      dependencyGraph = DependencyGraph.load({
-        ...defaults,
-        roots: ['/root'],
-      });
+      dependencyGraph = DependencyGraph.load(
+        {
+          ...defaults,
+          projectRoots: ['/root'],
+        },
+        false /* since we're mocking the filesystem, we cannot use watchman */,
+      );
      moduleReadDeferreds = {};
      callDeferreds = [defer(), defer()]; // [a.js, b.js]

@ -5276,10 +5300,13 @@ describe('traverseDependencies', function() {
      });

      DependencyGraph = require('../../node-haste/DependencyGraph');
-      dependencyGraph = await DependencyGraph.load({
-        ...defaults,
-        roots: ['/root'],
-      });
+      dependencyGraph = await DependencyGraph.load(
+        {
+          ...defaults,
+          projectRoots: ['/root'],
+        },
+        false /* since we're mocking the filesystem, we cannot use watchman */,
+      );
    });

    afterEach(() => {
@ -5305,7 +5332,10 @@ describe('traverseDependencies', function() {
   * (regardless if the test passes or fails).
   */
  async function processDgraphFor(DependencyGraph, options, processor) {
-    const dgraph = await DependencyGraph.load(options);
+    const dgraph = await DependencyGraph.load(
+      options,
+      false /* since we're mocking the filesystem, we cannot use watchman */,
+    );
    try {
      await processor(dgraph);
    } finally {
--- a/packages/metro/src/Resolver/index.js
+++ b/packages/metro/src/Resolver/index.js
@ -1,85 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @flow
- * @format
- */
-
-'use strict';
-
-const DependencyGraph = require('../node-haste/DependencyGraph');
-
-import type {GlobalTransformCache} from '../lib/GlobalTransformCache';
-import type {
-  TransformCache,
-  GetTransformCacheKey,
-} from '../lib/TransformCaching';
-import type {Reporter} from '../lib/reporting';
-import type {HasteImpl, TransformCode} from '../node-haste/Module';
-
-type Options = {|
-  +assetExts: Array<string>,
-  +assetRegistryPath: string,
-  +blacklistRE?: RegExp,
-  +extraNodeModules: ?{},
-  +getPolyfills: ({platform: ?string}) => $ReadOnlyArray<string>,
-  +getTransformCacheKey: GetTransformCacheKey,
-  +globalTransformCache: ?GlobalTransformCache,
-  +hasteImpl?: ?HasteImpl,
-  +maxWorkers: number,
-  +platforms: Set<string>,
-  +polyfillModuleNames?: Array<string>,
-  +projectRoots: $ReadOnlyArray<string>,
-  +providesModuleNodeModules: Array<string>,
-  +reporter: Reporter,
-  +resetCache: boolean,
-  +sourceExts: Array<string>,
-  +transformCache: TransformCache,
-  +transformCode: TransformCode,
-  +watch: boolean,
-|};
-
-class Resolver {
-  _depGraph: DependencyGraph;
-
-  constructor(opts: Options, depGraph: DependencyGraph) {
-    this._depGraph = depGraph;
-  }
-
-  static async load(opts: Options): Promise<Resolver> {
-    const depGraph = await DependencyGraph.load({
-      assetDependencies: [opts.assetRegistryPath],
-      assetExts: opts.assetExts,
-      extraNodeModules: opts.extraNodeModules,
-      forceNodeFilesystemAPI: false,
-      getTransformCacheKey: opts.getTransformCacheKey,
-      globalTransformCache: opts.globalTransformCache,
-      hasteImpl: opts.hasteImpl,
-      ignorePattern: opts.blacklistRE || / ^/ /* matches nothing */,
-      maxWorkers: opts.maxWorkers,
-      platforms: opts.platforms,
-      preferNativePlatform: true,
-      providesModuleNodeModules: opts.providesModuleNodeModules,
-      reporter: opts.reporter,
-      resetCache: opts.resetCache,
-      roots: opts.projectRoots,
-      sourceExts: opts.sourceExts,
-      transformCache: opts.transformCache,
-      transformCode: opts.transformCode,
-      useWatchman: true,
-      watch: opts.watch,
-    });
-    return new Resolver(opts, depGraph);
-  }
-
-  getDependencyGraph(): DependencyGraph {
-    return this._depGraph;
-  }
-}
-
-module.exports = Resolver;
--- a/packages/metro/src/Server/tests/Server-test.js
+++ b/packages/metro/src/Server/tests/Server-test.js
@ -109,12 +109,10 @@ describe('processRequest', () => {
    );

    Bundler.prototype.invalidateFile = invalidatorFunc;
-    Bundler.prototype.getResolver = jest.fn().mockReturnValue(
+    Bundler.prototype.getDependencyGraph = jest.fn().mockReturnValue(
      Promise.resolve({
-        getDependencyGraph: jest.fn().mockReturnValue({
-          getHasteMap: jest.fn().mockReturnValue({on: jest.fn()}),
-          load: jest.fn(() => Promise.resolve()),
-        }),
+        getHasteMap: jest.fn().mockReturnValue({on: jest.fn()}),
+        load: jest.fn(() => Promise.resolve()),
      }),
    );

--- a/packages/metro/src/Server/index.js
+++ b/packages/metro/src/Server/index.js
@ -169,9 +169,8 @@ class Server {
    this._bundler = new Bundler(bundlerOpts);

    // changes to the haste map can affect resolution of files in the bundle
-    this._bundler.getResolver().then(resolver => {
-      resolver
-        .getDependencyGraph()
+    this._bundler.getDependencyGraph().then(dependencyGraph => {
+      dependencyGraph
        .getWatcher()
        .on('change', ({eventsQueue}) =>
          eventsQueue.forEach(processFileChange),
--- a/packages/metro/src/node-haste/DependencyGraph.js
+++ b/packages/metro/src/node-haste/DependencyGraph.js
@ -45,26 +45,24 @@ import type Package from './Package';
 import type {HasteFS} from './types';

 type Options = {|
-  +assetDependencies: Array<string>,
  +assetExts: Array<string>,
+  +assetRegistryPath: string,
+  +blacklistRE?: RegExp,
  +extraNodeModules: ?{},
-  +forceNodeFilesystemAPI: boolean,
+  +getPolyfills: ({platform: ?string}) => $ReadOnlyArray<string>,
  +getTransformCacheKey: GetTransformCacheKey,
  +globalTransformCache: ?GlobalTransformCache,
-  +hasteImpl: ?HasteImpl,
-  +ignorePattern: RegExp,
+  +hasteImpl?: ?HasteImpl,
  +maxWorkers: number,
  +platforms: Set<string>,
-  +preferNativePlatform: boolean,
+  +polyfillModuleNames?: Array<string>,
+  +projectRoots: $ReadOnlyArray<string>,
  +providesModuleNodeModules: Array<string>,
  +reporter: Reporter,
-  +resetCache: ?boolean,
  +resetCache: boolean,
-  +roots: $ReadOnlyArray<string>,
  +sourceExts: Array<string>,
  +transformCache: TransformCache,
  +transformCode: TransformCode,
-  +useWatchman: boolean,
  +watch: boolean,
 |};

@ -106,11 +104,14 @@ class DependencyGraph extends EventEmitter {
    this._createModuleResolver();
  }

-  static _createHaste(opts: Options): JestHasteMap {
+  static _createHaste(
+    opts: Options,
+    useWatchman?: boolean = true,
+  ): JestHasteMap {
    return new JestHasteMap({
      extensions: opts.sourceExts.concat(opts.assetExts),
-      forceNodeFilesystemAPI: opts.forceNodeFilesystemAPI,
-      ignorePattern: opts.ignorePattern,
+      forceNodeFilesystemAPI: !useWatchman,
+      ignorePattern: opts.blacklistRE || / ^/,
      maxWorkers: opts.maxWorkers,
      mocksPattern: '',
      name: 'metro-' + JEST_HASTE_MAP_CACHE_BREAKER,
@ -118,19 +119,24 @@ class DependencyGraph extends EventEmitter {
      providesModuleNodeModules: opts.providesModuleNodeModules,
      resetCache: opts.resetCache,
      retainAllFiles: true,
-      roots: opts.roots,
-      useWatchman: opts.useWatchman,
+      roots: opts.projectRoots,
+      useWatchman,
      watch: opts.watch,
    });
  }

-  static async load(opts: Options): Promise<DependencyGraph> {
+  static _getJestHasteMapOptions(opts: Options) {}
+
+  static async load(
+    opts: Options,
+    useWatchman?: boolean = true,
+  ): Promise<DependencyGraph> {
    const initializingMetroLogEntry = log(
      createActionStartEntry('Initializing Metro'),
    );

    opts.reporter.update({type: 'dep_graph_loading'});
-    const haste = DependencyGraph._createHaste(opts);
+    const haste = DependencyGraph._createHaste(opts, useWatchman);
    const {hasteFS, moduleMap} = await haste.build();

    log(createActionEndEntry(initializingMetroLogEntry));
@ -183,7 +189,7 @@ class DependencyGraph extends EventEmitter {
      isAssetFile: filePath => this._helpers.isAssetFile(filePath),
      moduleCache: this._moduleCache,
      moduleMap: this._moduleMap,
-      preferNativePlatform: this._opts.preferNativePlatform,
+      preferNativePlatform: true,
      resolveAsset: (dirPath, assetName, platform) =>
        this._assetResolutionCache.resolve(dirPath, assetName, platform),
      sourceExts: this._opts.sourceExts,
@ -194,7 +200,7 @@ class DependencyGraph extends EventEmitter {
    const {_opts} = this;
    return new ModuleCache(
      {
-        assetDependencies: _opts.assetDependencies,
+        assetDependencies: [_opts.assetRegistryPath],
        depGraphHelpers: this._helpers,
        getClosestPackage: this._getClosestPackage.bind(this),
        getTransformCacheKey: _opts.getTransformCacheKey,
@ -203,7 +209,7 @@ class DependencyGraph extends EventEmitter {
        resetCache: _opts.resetCache,
        transformCache: _opts.transformCache,
        reporter: _opts.reporter,
-        roots: _opts.roots,
+        roots: _opts.projectRoots,
        transformCode: _opts.transformCode,
      },
      _opts.platforms,
@ -274,8 +280,8 @@ class DependencyGraph extends EventEmitter {
      return path.resolve(filePath);
    }

-    for (let i = 0; i < this._opts.roots.length; i++) {
-      const root = this._opts.roots[i];
+    for (let i = 0; i < this._opts.projectRoots.length; i++) {
+      const root = this._opts.projectRoots[i];
      const potentialAbsPath = path.join(root, filePath);
      if (this._hasteFS.exists(potentialAbsPath)) {
        return path.resolve(potentialAbsPath);
@ -298,7 +304,7 @@ class DependencyGraph extends EventEmitter {
    throw new NotFoundError(
      'Cannot find entry file %s in any of the roots: %j',
      filePath,
-      this._opts.roots,
+      this._opts.projectRoots,
    );
  }