From 4433953d686733eb83762b1d3832744fe0084c0f Mon Sep 17 00:00:00 2001
From: Jeff Dyer <jeffdyer@acm.org>
Date: Mon, 7 Dec 2015 09:40:56 -0800
Subject: [PATCH] Fix Node regression

---
 lib/model.js     | 2 +-
 lib/model.min.js | 4 ++--
 src/backward.js  | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/model.js b/lib/model.js
index b5afdf2..d7ccf70 100644
--- a/lib/model.js
+++ b/lib/model.js
@@ -244,7 +244,7 @@ var create = function create(o) {
 };
 
 // From: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON
-if (!window.JSON) {
+if (typeof window === "object" && !window.JSON) {
   window.JSON = {
     parse: function(sJSON) { return eval('(' + sJSON + ')'); },
     stringify: (function () {
diff --git a/lib/model.min.js b/lib/model.min.js
index 2b448b2..3ab3ba7 100644
--- a/lib/model.min.js
+++ b/lib/model.min.js
@@ -4,8 +4,8 @@ d,f){if(Array.prototype.some)return b.some(d,f);var p=toObject(b);b=splitString&
 var g=0;2<arguments.length&&(g=toInteger(f));for(g=0<=g?g:Math.max(0,q+g);g<q;g++)if(g in p&&p[g]===d)return g;return-1},keys=function(b){if(Object.keys)return Object.keys(b);var d=!0,f="toString toLocaleString valueOf hasOwnProperty isPrototypeOf propertyIsEnumerable constructor".split(" "),p=f.length,q;for(q in{toString:null})d=!1;if("object"!=typeof b&&"function"!=typeof b||null===b)throw new TypeError("Object.keys called on a non-object");q=[];for(var g in b)owns(b,g)&&q.push(g);if(d)for(d=0;d<
 p;d++)g=f[d],owns(b,g)&&q.push(g);return q},toObject=function(b){if(null==b)throw new TypeError("can't convert "+b+" to object");return Object(b)},prototypeOfObject=Object.prototype,_toString=function(b){return prototypeOfObject.toString.apply(b)},owns=function(b,d){return prototypeOfObject.hasOwnProperty.call(b,d)},create=function(b){if(Object.create)return Object.create(b);var d=function(){};if(1!=arguments.length)throw Error("Object.create implementation only accepts one parameter.");d.prototype=
 b;return new d};
-window.JSON||(window.JSON={parse:function(b){return eval("("+b+")")},stringify:function(){var b=Object.prototype.toString,d=Array.isArray||function(g){return"[object Array]"===b.call(g)},f={'"':'\\"',"\\":"\\\\","\b":"\\b","\f":"\\f","\n":"\\n","\r":"\\r","\t":"\\t"},p=function(b){return f[b]||"\\u"+(b.charCodeAt(0)+65536).toString(16).substr(1)},q=/[\\"\u0000-\u001F\u2028\u2029]/g;return function a(c){if(null==c)return"null";if("number"===typeof c)return isFinite(c)?c.toString():"null";if("boolean"===
-typeof c)return c.toString();if("object"===typeof c){if("function"===typeof c.toJSON)return a(c.toJSON());if(d(c)){for(var f="[",r=0;r<c.length;r++)f+=(r?", ":"")+a(c[r]);return f+"]"}if("[object Object]"===b.call(c)){f=[];for(r in c)c.hasOwnProperty(r)&&f.push(a(r)+": "+a(c[r]));return"{"+f.join(", ")+"}"}}return'"'+c.toString().replace(q,p)+'"'}}()});var ASSERT=!0,assert=function(){return ASSERT?function(b,d,f){void 0===d&&(d="failed!");if(!b)throw b=Error(d),b.location=f?f:Assert.location,b;}:function(){}}(),message=function(b,d){var f=Assert.messages[b];d&&forEach(d,function(b,d){f=f.replace("%"+(d+1),b)});return b+": "+f},reserveCodeRange=function(b,d,f){assert(b<=d,"Invalid code range");var p=every(Assert.reservedCodes,function(f){return d<f.first||b>f.last});assert(p,"Conflicting request for error code range");Assert.reservedCodes.push({first:b,
+"object"!==typeof window||window.JSON||(window.JSON={parse:function(b){return eval("("+b+")")},stringify:function(){var b=Object.prototype.toString,d=Array.isArray||function(g){return"[object Array]"===b.call(g)},f={'"':'\\"',"\\":"\\\\","\b":"\\b","\f":"\\f","\n":"\\n","\r":"\\r","\t":"\\t"},p=function(b){return f[b]||"\\u"+(b.charCodeAt(0)+65536).toString(16).substr(1)},q=/[\\"\u0000-\u001F\u2028\u2029]/g;return function a(c){if(null==c)return"null";if("number"===typeof c)return isFinite(c)?c.toString():
+"null";if("boolean"===typeof c)return c.toString();if("object"===typeof c){if("function"===typeof c.toJSON)return a(c.toJSON());if(d(c)){for(var f="[",r=0;r<c.length;r++)f+=(r?", ":"")+a(c[r]);return f+"]"}if("[object Object]"===b.call(c)){f=[];for(r in c)c.hasOwnProperty(r)&&f.push(a(r)+": "+a(c[r]));return"{"+f.join(", ")+"}"}}return'"'+c.toString().replace(q,p)+'"'}}()});var ASSERT=!0,assert=function(){return ASSERT?function(b,d,f){void 0===d&&(d="failed!");if(!b)throw b=Error(d),b.location=f?f:Assert.location,b;}:function(){}}(),message=function(b,d){var f=Assert.messages[b];d&&forEach(d,function(b,d){f=f.replace("%"+(d+1),b)});return b+": "+f},reserveCodeRange=function(b,d,f){assert(b<=d,"Invalid code range");var p=every(Assert.reservedCodes,function(f){return d<f.first||b>f.last});assert(p,"Conflicting request for error code range");Assert.reservedCodes.push({first:b,
 last:d,name:f})},setLocation=function(b){Assert.location=b},clearLocation=function(){Assert.location=null},setCounter=function(b,d){Assert.count=b;Assert.countMessage=d?d:"ERROR count exceeded"},checkCounter=function(){var b=Assert.count;"number"!==typeof b||isNaN(b)?assert(!1,"ERROR counter not set"):assert(Assert.count--,Assert.countMessage)},Assert={assert:assert,message:message,messages:{},reserveCodeRange:reserveCodeRange,reservedCodes:[],setLocation:setLocation,clearLocation:clearLocation,setCounter:setCounter,
 checkCounter:checkCounter};var TRACE=!1,global=this,trace=function(){return TRACE?function(b){if(global.console&&global.console.log)console.log(b);else if(global.print)print(b);else throw"No trace function defined!";}:function(){}}();var Ast=function(){function b(){}function d(b){void 0===b&&(b=this);return b.op&&b.args}var f=["unused"],p={};b.clearPool=function(){f=["unused"];p={}};b.prototype.create=function g(b,c){var d=g(this);"string"===typeof b?(d.op=b,d.args=c instanceof Array?c:[]):null!==b&&"object"===typeof b&&forEach(keys(b),function(c,g){d[c]=b[c]});return d};b.prototype.arg=function(b){if(!d(this))throw"Malformed node";this.args.push(b);return this};b.prototype.argN=function(b,a){if(!d(this))throw"Malformed node";
 if(void 0===a)return this.args[b];this.args[b]=a;return this};b.prototype.args=function(b){if(!d(this))throw"Malformed node";if(void 0===b)return this.args;this.args=b;return this};b.prototype.isNode=d;b.intern=b.prototype.intern=function a(c){this instanceof b&&void 0===c&&d(this)&&(c=this);assert("object"===typeof c,"node not an object");for(var G=c.op,r=c.args.length,ba="",M=[],A=0;A<r;A++)ba="string"===typeof c.args[A]?ba+(M[A]=c.args[A]):ba+(M[A]=a(c.args[A]));c=G+r+ba;r=p[c];void 0===r&&(f.push({op:G,
diff --git a/src/backward.js b/src/backward.js
index ac6b764..e6b61a4 100644
--- a/src/backward.js
+++ b/src/backward.js
@@ -244,7 +244,7 @@ var create = function create(o) {
 };
 
 // From: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON
-if (!window.JSON) {
+if (typeof window === "object" && !window.JSON) {
   window.JSON = {
     parse: function(sJSON) { return eval('(' + sJSON + ')'); },
     stringify: (function () {