From: Mihai Bazon <mihai.bazon@gmail.com>
Date: Mon, 4 May 2015 11:49:17 +0000 (+0300)
Subject: Avoid spurious brackets when dropping unused vars
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=c3a10c135eac6fff360ad109f30245459b0b7e13;p=UglifyJS.git

Avoid spurious brackets when dropping unused vars

Fix #702
---

diff --git a/lib/compress.js b/lib/compress.js
index 7d20a4ea..944db1d2 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1168,12 +1168,12 @@ merge(Compressor.prototype, {
                             return make_node(AST_EmptyStatement, node);
                         }
                         if (def.length == 0) {
-                            return side_effects;
+                            return in_list ? MAP.splice(side_effects.body) : side_effects;
                         }
                         node.definitions = def;
                         if (side_effects) {
                             side_effects.body.unshift(node);
-                            node = side_effects;
+                            return in_list ? MAP.splice(side_effects.body) : side_effects;
                         }
                         return node;
                     }