Never produce -0 when evaluating expressions (like -"")

Fix for #1085. The major case was already there, but more expressions can result in -0.
2016-05-17 22:34:38 +02:00
parent 5f464b41e2
commit 27eedbc302
2 changed files with 12 additions and 3 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1029,9 +1029,9 @@ merge(Compressor.prototype, {
              case "void": return void ev(e, compressor);
              case "~": return ~ev(e, compressor);
              case "-":
-                e = ev(e, compressor);
-                if (e === 0) throw def;
-                return -e;
+                e = -ev(e, compressor);
+                if (e === -0) throw def;
+                return e;
              case "+": return +ev(e, compressor);
            }
            throw def;