From fed7096a5ab5b9410d1e593fe7ec0088ef622a34 Mon Sep 17 00:00:00 2001
From: Avital Oliver <avital@thewe.net>
Date: Wed, 9 Dec 2015 16:02:38 -0800
Subject: [PATCH] Explain the ecmascript-runtime => promise dependency

---
 packages/ecmascript-runtime/package.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/ecmascript-runtime/package.js b/packages/ecmascript-runtime/package.js
index e9a4d1c040..858981f60a 100644
--- a/packages/ecmascript-runtime/package.js
+++ b/packages/ecmascript-runtime/package.js
@@ -13,6 +13,9 @@ Npm.depends({
 
 Package.onUse(function(api) {
   api.use("modules");
+
+  // Regenerator, which we use to transpile ES2016 async/await, needs
+  // a promise implementation
   api.use("promise");
 
   api.mainModule("runtime.js");