fix null pointer exception (#717) (#797)

ignore deep CJS imports/exports
import-js · May 18, 2017 · 2efc41a · 2efc41a
1 parent 0fb592e
commit 2efc41a
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/src/ExportMap.js b/src/ExportMap.js
@@ -151,8 +151,14 @@ export default class ExportMap {
       callback.call(thisArg, reexported && reexported.get(reexports.local), name, this)
     })
 
-    this.dependencies.forEach(dep => dep().forEach((v, n) =>
-      n !== 'default' && callback.call(thisArg, v, n, this)))
+    this.dependencies.forEach(dep => {
+      const d = dep()
+      // CJS / ignored dependencies won't exist (#717)
+      if (d == null) return
+
+      d.forEach((v, n) =>
+        n !== 'default' && callback.call(thisArg, v, n, this))
+    })
   }
 
   // todo: keys, values, entries?