From: Mihai Bazon <mihai.bazon@gmail.com>
Date: Tue, 10 Dec 2013 18:23:29 +0000 (-0800)
Subject: Merge pull request #245 from ForbesLindesay/patch-1
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=248f304f02528f1e63c11707f3159e456baac139;p=UglifyJS.git

Merge pull request #245 from ForbesLindesay/patch-1

Make `DefaultsError` a real `Error` object
---

248f304f02528f1e63c11707f3159e456baac139
diff --cc lib/utils.js
index fa24663c,20f9a8e1..c7299e57
--- a/lib/utils.js
+++ b/lib/utils.js
@@@ -85,11 -86,9 +86,13 @@@ function DefaultsError(msg, defs) 
      this.msg = msg;
      this.defs = defs;
  };
+ DefaultsError.prototype = Object.create(Error.prototype)
+ DefaultsError.prototype.constructor = DefaultsError
  
 +DefaultsError.croak = function(msg, defs) {
 +    throw new DefaultsError(msg, defs);
 +};
 +
  function defaults(args, defs, croak) {
      if (args === true)
          args = {};