From a787a302236d89d6c4e24ecdbd63845abd263c3e Mon Sep 17 00:00:00 2001
From: Alex Rattray <rattray.alex@gmail.com>
Date: Tue, 20 Dec 2016 03:16:46 -0800
Subject: [PATCH] Allow this.state.clone() when parsing decorators

Adding the line `this.state = this.state.clone();` in a parser plugin
(specifically, in my case `parseExprAtom`)
would break decorators.

This change fixes that.
---
 src/parser/statement.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/parser/statement.js b/src/parser/statement.js
index d2dfce09e2..40bcb56882 100644
--- a/src/parser/statement.js
+++ b/src/parser/statement.js
@@ -149,7 +149,8 @@ pp.takeDecorators = function (node) {
 
 pp.parseDecorators = function (allowExport) {
   while (this.match(tt.at)) {
-    this.state.decorators.push(this.parseDecorator());
+    let decorator = this.parseDecorator();
+    this.state.decorators.push(decorator);
   }
 
   if (allowExport && this.match(tt._export)) {