make babel-helper-remap-async-to-generator bc with babel 6.15 and lower (#4603)

2016-09-29 14:14:39 +02:00
parent 682e9658c9
commit 5a1984aa41
1 changed files with 5 additions and 0 deletions
--- a/packages/babel-helper-remap-async-to-generator/src/index.js
+++ b/packages/babel-helper-remap-async-to-generator/src/index.js
@@ -152,6 +152,11 @@ function plainFunction(path: NodePath, callId: Object) {
 }

 export default function (path: NodePath, file: Object, helpers: Object) {
+  if (!helpers) {
+    // bc for 6.15 and earlier
+    helpers = { wrapAsync: file };
+    file = null;
+  }
  path.traverse(awaitVisitor, {
    file,
    wrapAwait: helpers.wrapAwait