161 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			161 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
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| var indexOf = function (xs, item) {
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|     if (xs.indexOf) return xs.indexOf(item);
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|     else for (var i = 0; i < xs.length; i++) {
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|         if (xs[i] === item) return i;
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|     }
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|     return -1;
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| };
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| var Object_keys = function (obj) {
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|     if (Object.keys) return Object.keys(obj)
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|     else {
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|         var res = [];
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|         for (var key in obj) res.push(key)
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|         return res;
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|     }
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| };
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| 
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| var forEach = function (xs, fn) {
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|     if (xs.forEach) return xs.forEach(fn)
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|     else for (var i = 0; i < xs.length; i++) {
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|         fn(xs[i], i, xs);
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|     }
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| };
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| 
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| var defineProp = (function() {
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|     try {
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|         Object.defineProperty({}, '_', {});
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|         return function(obj, name, value) {
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|             Object.defineProperty(obj, name, {
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|                 writable: true,
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|                 enumerable: false,
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|                 configurable: true,
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|                 value: value
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|             })
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|         };
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|     } catch(e) {
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|         return function(obj, name, value) {
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|             obj[name] = value;
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|         };
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|     }
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| }());
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| 
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| var globals = ['Array', 'Boolean', 'Date', 'Error', 'EvalError', 'Function',
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| 'Infinity', 'JSON', 'Math', 'NaN', 'Number', 'Object', 'RangeError',
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| 'ReferenceError', 'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError',
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| 'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'escape',
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| 'eval', 'isFinite', 'isNaN', 'parseFloat', 'parseInt', 'undefined', 'unescape'];
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| 
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| function Context() {}
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| Context.prototype = {};
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| 
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| var Script = exports.Script = function NodeScript (code) {
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|     if (!(this instanceof Script)) return new Script(code);
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|     this.code = code;
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| };
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| 
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| Script.prototype.runInContext = function (context) {
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|     if (!(context instanceof Context)) {
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|         throw new TypeError("needs a 'context' argument.");
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|     }
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|     
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|     var iframe = document.createElement('iframe');
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|     if (!iframe.style) iframe.style = {};
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|     iframe.style.display = 'none';
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|     
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|     document.body.appendChild(iframe);
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|     
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|     var win = iframe.contentWindow;
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|     var wEval = win.eval, wExecScript = win.execScript;
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| 
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|     if (!wEval && wExecScript) {
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|         // win.eval() magically appears when this is called in IE:
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|         wExecScript.call(win, 'null');
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|         wEval = win.eval;
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|     }
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|     
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|     forEach(Object_keys(context), function (key) {
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|         win[key] = context[key];
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|     });
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|     forEach(globals, function (key) {
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|         if (context[key]) {
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|             win[key] = context[key];
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|         }
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|     });
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|     
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|     var winKeys = Object_keys(win);
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| 
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|     var res = wEval.call(win, this.code);
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|     
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|     forEach(Object_keys(win), function (key) {
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|         // Avoid copying circular objects like `top` and `window` by only
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|         // updating existing context properties or new properties in the `win`
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|         // that was only introduced after the eval.
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|         if (key in context || indexOf(winKeys, key) === -1) {
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|             context[key] = win[key];
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|         }
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|     });
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| 
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|     forEach(globals, function (key) {
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|         if (!(key in context)) {
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|             defineProp(context, key, win[key]);
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|         }
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|     });
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|     
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|     document.body.removeChild(iframe);
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|     
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|     return res;
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| };
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| 
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| Script.prototype.runInThisContext = function () {
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|     return eval(this.code); // maybe...
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| };
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| 
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| Script.prototype.runInNewContext = function (context) {
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|     var ctx = Script.createContext(context);
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|     var res = this.runInContext(ctx);
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| 
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|     if (context) {
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|         forEach(Object_keys(ctx), function (key) {
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|             context[key] = ctx[key];
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|         });
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|     }
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| 
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|     return res;
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| };
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| 
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| forEach(Object_keys(Script.prototype), function (name) {
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|     exports[name] = Script[name] = function (code) {
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|         var s = Script(code);
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|         return s[name].apply(s, [].slice.call(arguments, 1));
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|     };
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| });
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| 
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| exports.isContext = function (context) {
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|     return context instanceof Context;
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| };
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| 
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| exports.createScript = function (code) {
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|     return exports.Script(code);
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| };
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| 
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| exports.createContext = Script.createContext = function (context) {
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|     var copy = new Context();
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|     if(typeof context === 'object') {
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|         forEach(Object_keys(context), function (key) {
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|             copy[key] = context[key];
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|         });
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|     }
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|     return copy;
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| };
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| 
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| },{}],2:[function(require,module,exports){
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| var vm = require('vm');
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| 
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| window.addEventListener('load', function () {
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|     var res = vm.runInNewContext('a + 5', { a : 100 });
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|     document.querySelector('#res').textContent = res;
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| });
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| 
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| },{"vm":1}]},{},[2]);
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