fix issue #5012 - Cannot read property 'declarations' of null (#5019)

- temporary fix
2017-01-19 21:36:18 -05:00
parent e9fc38bcd3
commit ef25bebfa8
4 changed files with 36 additions and 1 deletions
--- a/packages/babel-traverse/src/path/lib/hoister.js
+++ b/packages/babel-traverse/src/path/lib/hoister.js
@@ -121,7 +121,12 @@ export default class PathHoister {
    do {
      if (!path.parentPath ||
          (Array.isArray(path.container) && path.isStatement()) ||
-          (path.isVariableDeclarator() && path.parentPath.node.declarations.length > 1))
+          (
+            path.isVariableDeclarator() &&
+            path.parentPath.node !== null &&
+            path.parentPath.node.declarations.length > 1
+          )
+      )
        return path;
    } while ((path = path.parentPath));
  }