1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 (function(global) { 6 7 var GetProperties = function(this_name, object) { 8 var result = {}; 9 try { 10 var names = Object.getOwnPropertyNames(object); 11 } catch(e) { 12 return; 13 } 14 for (var i = 0; i < names.length; ++i) { 15 var name = names[i]; 16 if (typeof object === "function") { 17 if (name === "length" || 18 name === "name" || 19 name === "arguments" || 20 name === "caller" || 21 name === "prototype") { 22 continue; 23 } 24 } 25 // Avoid endless recursion. 26 if (this_name === "prototype" && name === "constructor") continue; 27 // Avoid needless duplication. 28 if (this_name === "__PROTO__" && name === "constructor") continue; 29 // Could get this from the parent, but having it locally is easier. 30 var property = { "name": name }; 31 try { 32 var value = object[name]; 33 } catch(e) { 34 property.type = "getter"; 35 result[name] = property; 36 continue; 37 } 38 var type = typeof value; 39 property.type = type; 40 if (type === "function") { 41 property.length = value.length; 42 property.prototype = GetProperties("prototype", value.prototype); 43 } 44 if (type === "string" || type === "number") { 45 property.value = value; 46 } else { 47 property.properties = GetProperties(name, value); 48 } 49 result[name] = property; 50 } 51 // Print the __proto__ if it's not the default Object prototype. 52 if (typeof object === "object" && object.__proto__ !== null && 53 !object.__proto__.hasOwnProperty("__proto__")) { 54 result.__PROTO__ = GetProperties("__PROTO__", object.__proto__); 55 } 56 return result; 57 }; 58 59 var g = GetProperties("", global, ""); 60 print(JSON.stringify(g, undefined, 2)); 61 62 })(this); // Must wrap in anonymous closure or it'll detect itself as builtin. 63
