C# ScriptEngine.GetGlobalValue方法代码示例

 public Scriptable()
 {
     engine = new ScriptEngine();
     engine.Evaluate("funcccc = function() { return 3 * 3; }");
     object funccc = engine.GetGlobalValue("funcccc");
     engine.Evaluate("funcccc = function() { return 9 * 9; }");
     loopFuncs = new List<MGFunction>();
     timeAtLastUpdate = System.DateTime.Now;
 }

        public void SerializeFunction()
        {
            // Set up a script engine.
            var scriptEngine = new ScriptEngine();
            scriptEngine.Execute(@"function outer(a, b) { function inner() { return a + b; } return inner(); }");

            // Attempt to serialize and then deserialize the function.
            ScriptEngine.DeserializationEnvironment = scriptEngine;
            var function = (FunctionInstance)Clone(scriptEngine.GetGlobalValue("outer"));

            // Verify it was deserialized correctly.
            Assert.AreEqual(11.0, function.Call(null, 5, 6));
        }

 public string Uglify(string script)
 {
     string uglifyCode = new StringBuilder()
         .AppendLine("var exports = {}; function require() { return exports; };")
         .AppendLine(ReadResource("parse-js.js"))
         .AppendLine(ReadResource("process.js"))
         .AppendLine("value = gen_code(ast_squeeze(ast_mangle(parse(value))));")
         .ToString();
     var engine = new ScriptEngine();
     engine.SetGlobalValue("value", script);
     engine.Execute(uglifyCode);
     return engine.GetGlobalValue<string>("value");
 }

 private static string GetFunctionIL(string code, string functionName)
 {
     var scriptEngine = new ScriptEngine();
     scriptEngine.EnableILAnalysis = true;
     scriptEngine.Execute(code);
     var function = (Jurassic.Library.UserDefinedFunction)scriptEngine.GetGlobalValue(functionName);
     if (function == null)
         throw new ArgumentException(string.Format("The function {0} was not found.", functionName));
     return TestUtils.NormalizeText(function.DisassembledIL);
 }

        public void SetGlobalValueClassInstance()
        {
            var engine = new ScriptEngine();

            engine.EnableExposedClrTypes = false;
            TestUtils.ExpectException<JavaScriptException>(() => engine.SetGlobalValue("TestInstance", typeof(TestInstance)));
            TestUtils.ExpectException<JavaScriptException>(() => engine.SetGlobalValue("TestInstance2", typeof(TestInstance2)));

            engine.EnableExposedClrTypes = true;

            // Try setting up some types.
            engine.SetGlobalValue("TestInstance", typeof(TestInstance));
            engine.SetGlobalValue("TestInstance2", typeof(TestInstance2));

            // Constructor.
            engine.Execute("var instance = new TestInstance(5)");

            // Keys.
            Assert.AreEqual("Add,Equals,ReferenceEquals,length,length,name,name", engine.Evaluate("var keys = []; x = TestInstance; while (x != null) { keys = keys.concat(Object.getOwnPropertyNames(x)); x = Object.getPrototypeOf(x); } keys.sort().toString()"));
            Assert.AreEqual("Add,Equals,GetHashCode,GetType,ToString,ToString,Value,value", engine.Evaluate("var keys = []; x = instance; while (x != null) { keys = keys.concat(Object.getOwnPropertyNames(x)); x = Object.getPrototypeOf(x); } keys.sort().toString()"));

            // Property
            Assert.AreEqual(5, engine.Evaluate("instance.Value"));
            engine.Execute("instance.Value = 6");
            Assert.AreEqual(6, engine.Evaluate("instance.Value"));

            // Field
            Assert.AreEqual(6, engine.Evaluate("instance.value"));
            engine.Execute("instance.value = 7");
            Assert.AreEqual(7, engine.Evaluate("instance.value"));

            // Instance method.
            engine.Execute("instance.Add(10)");
            Assert.AreEqual(17, engine.Evaluate("instance.Value"));
            Assert.AreEqual("17", engine.Evaluate("instance.ToString()"));

            // Static method.
            engine.Execute("var instance2 = TestInstance.Add(instance, instance)");
            Assert.AreEqual(17, engine.Evaluate("instance.Value"));
            Assert.AreEqual(34, engine.Evaluate("instance2.Value"));

            // Constructor overloading.
            engine.Execute("instance2 = new TestInstance(instance)");
            Assert.AreEqual(17, engine.Evaluate("instance2.Value"));

            // Types get unwrapped when they are returned from ScriptEngine APIs.
            Assert.AreEqual(typeof(TestInstance), engine.Evaluate("TestInstance"));
            Assert.AreEqual(typeof(TestInstance), engine.GetGlobalValue("TestInstance"));

            // Class with no constructors.
            engine.Execute("var instance2 = new TestInstance2()");
            Assert.AreEqual(0, engine.Evaluate("instance2.value"));
        }

        public void SerializeObject()
        {
            var scriptEngine = new ScriptEngine();
            ScriptEngine.DeserializationEnvironment = scriptEngine;

            // Create a test object.
            scriptEngine.Execute(@"
                _obj = { };
                Object.defineProperty(_obj, 'a', { configurable: true, writable: true, enumerable: true, value: 5 });
                Object.defineProperty(_obj, 'b', { configurable: false, writable: false, enumerable: false, value: 10 });
                Object.defineProperty(_obj, 'c', { configurable: true, enumerable: true, get: function() { return 3; } });
                Object.defineProperty(_obj, 'd', { configurable: true, enumerable: true, get: function() { return this._value; }, set: function(value) { this._value = value + 1 } });
                _obj.nested = { a: 1 };");

            // Clone the object using serialization.
            scriptEngine.SetGlobalValue("_obj2", Clone(scriptEngine.GetGlobalValue("_obj")));

            // Check the cloned object is not simply a pointer to the old object.
            Assert.AreEqual(true, scriptEngine.Evaluate("delete _obj.e; _obj2.e = 11; _obj.e === undefined"));

            // Check the properties have been cloned successfully.
            Assert.AreEqual(5, scriptEngine.Evaluate("_obj2.a"));
            scriptEngine.Execute("var descriptor = Object.getOwnPropertyDescriptor(_obj2, 'a')");
            Assert.AreEqual(true, scriptEngine.Evaluate("descriptor.configurable"));
            Assert.AreEqual(true, scriptEngine.Evaluate("descriptor.writable"));
            Assert.AreEqual(true, scriptEngine.Evaluate("descriptor.enumerable"));
            Assert.AreEqual(5, scriptEngine.Evaluate("descriptor.value"));

            // Check the properties have been cloned successfully.
            Assert.AreEqual(10, scriptEngine.Evaluate("_obj2.b"));
            scriptEngine.Execute("var descriptor = Object.getOwnPropertyDescriptor(_obj2, 'b')");
            Assert.AreEqual(false, scriptEngine.Evaluate("descriptor.configurable"));
            Assert.AreEqual(false, scriptEngine.Evaluate("descriptor.writable"));
            Assert.AreEqual(false, scriptEngine.Evaluate("descriptor.enumerable"));
            Assert.AreEqual(10, scriptEngine.Evaluate("descriptor.value"));

            // Check the properties have been cloned successfully.
            Assert.AreEqual(3, scriptEngine.Evaluate("_obj2.c"));
            scriptEngine.Execute("var descriptor = Object.getOwnPropertyDescriptor(_obj2, 'c')");
            Assert.AreEqual(true, scriptEngine.Evaluate("descriptor.configurable"));
            Assert.AreEqual(true, scriptEngine.Evaluate("descriptor.enumerable"));
            Assert.AreEqual("function", scriptEngine.Evaluate("typeof descriptor.get"));

            // Check the properties have been cloned successfully.
            Assert.AreEqual(11, scriptEngine.Evaluate("_obj2.d = 10; _obj2.d"));
            scriptEngine.Execute("var descriptor = Object.getOwnPropertyDescriptor(_obj2, 'd')");
            Assert.AreEqual(true, scriptEngine.Evaluate("descriptor.configurable"));
            Assert.AreEqual(true, scriptEngine.Evaluate("descriptor.enumerable"));
            Assert.AreEqual("function", scriptEngine.Evaluate("typeof descriptor.get"));
            Assert.AreEqual("function", scriptEngine.Evaluate("typeof descriptor.set"));

            // Check the properties have been cloned successfully.
            Assert.AreEqual(1, scriptEngine.Evaluate("_obj2.nested.a"));

            // Make sure the extensible flag works.
            scriptEngine.Execute(@"
                _obj3 = { };
                Object.preventExtensions(_obj3);");

            // Clone the object using serialization.
            scriptEngine.SetGlobalValue("_obj4", Clone(scriptEngine.GetGlobalValue("_obj3")));

            // Check the flag was cloned successfully.
            Assert.AreEqual(true, scriptEngine.Evaluate("Object.isExtensible(_obj)"));
            Assert.AreEqual(true, scriptEngine.Evaluate("Object.isExtensible(_obj2)"));
            Assert.AreEqual(false, scriptEngine.Evaluate("Object.isExtensible(_obj3)"));
            Assert.AreEqual(false, scriptEngine.Evaluate("Object.isExtensible(_obj4)"));
        }

 private ArrayInstance RunScript(GroupChatMessageArrived eventObject, string js)
 {
     var jsEngine = new ScriptEngine();
     jsEngine.ExecuteFile(Path.Combine(BaseScriptFolder, "hubotScriptInvoker.js"));
     jsEngine.Execute(js);
     jsEngine.SetGlobalValue("messageBody", eventObject.Message.Body);
     jsEngine.Execute(GetJSInvoker(eventObject));
     jsEngine.Execute("module.exports(bot);");
     var result = jsEngine.GetGlobalValue("messages") as ArrayInstance;
     return result;
 }