From 075ff67aca10635303362730238bddd363a2c0ee Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Mon, 13 Apr 2015 16:16:57 -0700
Subject: [PATCH] make parenthesized array patterns illegal - cc
 @michaelficarra

---
 src/expression.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/expression.js b/src/expression.js
index cf8370c51c..998864d077 100755
--- a/src/expression.js
+++ b/src/expression.js
@@ -103,7 +103,7 @@ pp.parseMaybeAssign = function(noIn, refShorthandDefaultPos, afterLeftParse) {
     node.left = this.type === tt.eq ? this.toAssignable(left) : left
     refShorthandDefaultPos.start = 0 // reset because shorthand default was used correctly
     this.checkLVal(left)
-    if (left.parenthesizedExpression && left.type === "ObjectPattern") {
+    if (left.parenthesizedExpression && (left.type === "ObjectPattern" || left.type === "ArrayPattern")) {
       this.raise(left.start, "You're trying to assign to a parenthesized expression, instead of `({ foo }) = {}` use `({ foo } = {})`");
     }
     this.next()