From 7cb1adf455f8ab440e1971ae41265c1f7f9a806a Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Thu, 30 Mar 2017 16:09:00 +0800
Subject: remove paranthesis for `-(x*y)` (#1732)

---
 lib/compress.js | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'lib/compress.js')

diff --git a/lib/compress.js b/lib/compress.js
index be760152..ac7ea357 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -3034,6 +3034,13 @@ merge(Compressor.prototype, {
                 })).optimize(compressor);
             }
         }
+        if (e instanceof AST_Binary
+            && (self.operator == "+" || self.operator == "-")
+            && (e.operator == "*" || e.operator == "/" || e.operator == "%")) {
+            self.expression = e.left;
+            e.left = self;
+            return e.optimize(compressor);
+        }
         // avoids infinite recursion of numerals
         if (self.operator != "-"
             || !(self.expression instanceof AST_Number
-- 
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