From 1040110dc4fa1a323dae991d74ba1102b83eaa67 Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Mon, 8 May 2017 05:02:04 +0800
Subject: [PATCH] fix variable initialisation add mocha test

---
 bin/uglifyjs      |  6 +++---
 test/mocha/cli.js | 11 +++++++++++
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/bin/uglifyjs b/bin/uglifyjs
index 3aaa3280..5fa81f3b 100755
--- a/bin/uglifyjs
+++ b/bin/uglifyjs
@@ -15,6 +15,7 @@ var path = require("path");
 var program = require("commander");
 var UglifyJS = require("../tools/node");
 
+var skip_keys = [ "cname", "enclosed", "parent_scope", "scope", "thedef", "uses_eval", "uses_with" ];
 var files = {};
 var options = {
     compress: false,
@@ -259,8 +260,8 @@ function run() {
 }
 
 function fatal(message) {
-  console.error(message);
-  process.exit(1);
+    console.error(message);
+    process.exit(1);
 }
 
 // A file glob function that only supports "*" and "?" wildcards in the basename.
@@ -375,7 +376,6 @@ function to_cache(key) {
     return cache[key];
 }
 
-var skip_keys = [ "cname", "enclosed", "parent_scope", "scope", "thedef", "uses_eval", "uses_with" ];
 function skip_key(key) {
     return skip_keys.indexOf(key) >= 0;
 }
diff --git a/test/mocha/cli.js b/test/mocha/cli.js
index cac920d3..8c7964ac 100644
--- a/test/mocha/cli.js
+++ b/test/mocha/cli.js
@@ -509,4 +509,15 @@ describe("bin/uglifyjs", function () {
             return JSON.stringify(map).replace(/"/g, '\\"');
         }
     });
+    it("Should dump AST as JSON", function(done) {
+        var command = uglifyjscmd + " test/input/global_defs/simple.js -mco ast";
+        exec(command, function (err, stdout) {
+            if (err) throw err;
+
+            var ast = JSON.parse(stdout);
+            assert.strictEqual(ast._class, "AST_Toplevel");
+            assert.ok(Array.isArray(ast.body));
+            done();
+        });
+    });
 });