From 24eef217567160d465a72c20bbedb928a68df68f Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Wed, 11 Mar 2015 00:15:07 +1100
Subject: [PATCH] convert playground assignment operators - fixes
 babel/babel-eslint#40

---
 eslint/babel-eslint-parser/acorn-to-esprima.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/eslint/babel-eslint-parser/acorn-to-esprima.js b/eslint/babel-eslint-parser/acorn-to-esprima.js
index f6e5817440..0633cbf5d0 100644
--- a/eslint/babel-eslint-parser/acorn-to-esprima.js
+++ b/eslint/babel-eslint-parser/acorn-to-esprima.js
@@ -61,6 +61,14 @@ var astTransformVisitor = {
       return node.argument;
     }
 
+    // playground
+
+    if (t.isAssignmentExpression(node)) {
+      if (node.operator === "||=" || node.operator === "?=") {
+        node.operator = "+=";
+      }
+    }
+
     // modules
 
     if (t.isImportDeclaration(node)) {