From 72e3cb924388f55265364000b6880b86144f1f67 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Tue, 5 May 2015 08:54:51 +0100
Subject: [PATCH] trigger a reference for export declarations

---
 src/babel/traversal/scope.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/babel/traversal/scope.js b/src/babel/traversal/scope.js
index a70d63132a..86cae263d2 100644
--- a/src/babel/traversal/scope.js
+++ b/src/babel/traversal/scope.js
@@ -48,6 +48,17 @@ var programReferenceVisitor = explode({
     }
   },
 
+  ExportDeclaration(node, parent, scope, state) {
+    var declar = node.declaration;
+    if (t.isClassDeclaration(declar) || t.isFunctionDeclaration(declar)) {
+      scope.getBinding(declar.id.name).reference();
+    } else if (t.isVariableDeclaration(declar)) {
+      for (var decl of (declar.declarations: Array)) {
+        scope.getBinding(decl.id.name).reference();
+      }
+    }
+  },
+
   LabeledStatement(node, parent, scope, state) {
     state.addGlobal(node);
   },