Fix yield expression transform (#9076)

2018-11-27 09:45:06 -06:00
parent 61f2aed5b0
commit 2bb24f996f
3 changed files with 10 additions and 1 deletions
--- a/packages/babel-generator/src/node/parentheses.js
+++ b/packages/babel-generator/src/node/parentheses.js
@@ -166,6 +166,7 @@ export function YieldExpression(node: Object, parent: Object): boolean {
    t.isCallExpression(parent) ||
    t.isMemberExpression(parent) ||
    t.isNewExpression(parent) ||
+    (t.isAwaitExpression(parent) && t.isYieldExpression(node)) ||
    (t.isConditionalExpression(parent) && node === parent.test) ||
    isClassExtendsClause(node, parent)
  );