From db7ea0b5f778c22a8fc906b5fc18b74c0c4a3d75 Mon Sep 17 00:00:00 2001
From: Alexander Gugel <alexanderg@fb.com>
Date: Thu, 14 Sep 2017 18:40:21 -0700
Subject: [PATCH] Add hook for accessing aggregated resolution cache

Reviewed By: mjesun

Differential Revision: D5775425

fbshipit-source-id: 9e1855d9a161f60d7163a208c5539264ba67d3fd
---
 .../src/node-haste/DependencyGraph/ResolutionRequest.js   | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/packages/metro-bundler/src/node-haste/DependencyGraph/ResolutionRequest.js b/packages/metro-bundler/src/node-haste/DependencyGraph/ResolutionRequest.js
index 8dd48b4e..a303c6ea 100644
--- a/packages/metro-bundler/src/node-haste/DependencyGraph/ResolutionRequest.js
+++ b/packages/metro-bundler/src/node-haste/DependencyGraph/ResolutionRequest.js
@@ -80,7 +80,7 @@ class ResolutionRequest<TModule: Moduleish, TPackage: Packageish> {
   }
 
   resolveDependency(fromModule: TModule, toModuleName: string): TModule {
-    const resHash = resolutionHash(fromModule.path, toModuleName);
+    const resHash = getResolutionCacheKey(fromModule.path, toModuleName);
 
     const immediateResolution = this._immediateResolutionCache[resHash];
     if (immediateResolution) {
@@ -367,9 +367,13 @@ class ResolutionRequest<TModule: Moduleish, TPackage: Packageish> {
   _resetResolutionCache() {
     this._immediateResolutionCache = Object.create(null);
   }
+
+  getResolutionCache(): {[key: string]: TModule} {
+    return this._immediateResolutionCache;
+  }
 }
 
-function resolutionHash(modulePath, depName) {
+function getResolutionCacheKey(modulePath, depName) {
   return `${path.resolve(modulePath)}:${depName}`;
 }