From: Mihai Bazon <mihai@bazon.net>
Date: Mon, 29 Apr 2013 12:03:52 +0000 (+0300)
Subject: Workaround for missing `prefix` in UnaryExpression generated by Esprima
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=9794ebf88ce877c83ef522642bbd75f72bb80ac7;p=UglifyJS.git

Workaround for missing `prefix` in UnaryExpression generated by Esprima

See #193
---

diff --git a/lib/mozilla-ast.js b/lib/mozilla-ast.js
index 982d621a..d7950942 100644
--- a/lib/mozilla-ast.js
+++ b/lib/mozilla-ast.js
@@ -148,12 +148,14 @@
     };
 
     function From_Moz_Unary(M) {
-        return new (M.prefix ? AST_UnaryPrefix : AST_UnaryPostfix)({
+        var prefix = "prefix" in M ? M.prefix
+            : M.type == "UnaryExpression" ? true : false;
+        return new (prefix ? AST_UnaryPrefix : AST_UnaryPostfix)({
             start      : my_start_token(M),
             end        : my_end_token(M),
             operator   : M.operator,
             expression : from_moz(M.argument)
-        })
+        });
     };
 
     var ME_TO_MOZ = {};