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C# JsValue类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C#中JsValue的典型用法代码示例。如果您正苦于以下问题:C# JsValue类的具体用法?C# JsValue怎么用?C# JsValue使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



JsValue类属于命名空间,在下文中一共展示了JsValue类的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C#代码示例。

示例1: Construct

        /// <summary>
        /// http://www.ecma-international.org/ecma-262/5.1/#sec-15.2.2.1
        /// </summary>
        /// <param name="arguments"></param>
        /// <returns></returns>
        public ObjectInstance Construct(JsValue[] arguments)
        {
            if (arguments.Length > 0)
            {
                var value = arguments[0];
                var valueObj = value.TryCast<ObjectInstance>();
                if (valueObj != null)
                {
                    return valueObj;
                }
                var type = value.Type;
                if (type == Types.String || type == Types.Number || type == Types.Boolean)
                {
                    return TypeConverter.ToObject(_engine, value);
                }
            }

            var obj = new ObjectInstance(_engine)
                {
                    Extensible = true,
                    Prototype = Engine.Object.PrototypeObject
                };

            return obj;
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:30,代码来源:ObjectConstructor.cs


示例2: Invoke

        public object Invoke(DispatchIdentifier id, DispatchType dispType, JsValue[] args, out Type returnType)
        {
            if (id.Tag == DispatchIdentifierType.String) {
                if (id.AsString == "length") {
                    return GetLength(dispType, out returnType);
                }
                else {
                    returnType = typeof(void);
                    return null;
                }
            }
            else {
                int intId = id.AsInt;
                if (intId == this.target.Length) {
                    return GetLength(dispType, out returnType);
                }

                if (intId >= 0 && intId < this.target.Length) {
                    Debug.WriteLine(string.Format("{0}, {1}[{2}]", dispType, this.target, id));
                    if (dispType == DispatchType.PropertyGet) {
                        returnType = this.elementType;
                        return this.target.GetValue(intId);
                    }

                    if (dispType == DispatchType.PropertySet) {
                        object value = this.bridge.UnwrapValue(args.First(), this.elementType);
                        this.target.SetValue(value, intId);
                        returnType = typeof(void);
                        return null;
                    }
                }
            }

            throw new NotSupportedException();
        }
开发者ID:JimmyJune,项目名称:DotWeb,代码行数:35,代码来源:JsArrayWrapper.cs


示例3: Call

        public JsValue Call(JsValue thisObject, JsValue[] arguments)
        {
            // direct calls on a NamespaceReference constructor object is creating a generic type 
            var genericTypes = new Type[arguments.Length];
            for (int i = 0; i < arguments.Length; i++)
            {
                var genericTypeReference = arguments.At(i);
                if (genericTypeReference == Undefined.Instance || !genericTypeReference.IsObject() || genericTypeReference.AsObject().Class != "TypeReference")
                {
                    throw new JavaScriptException(Engine.TypeError, "Invalid generic type parameter");
                }

                genericTypes[i] = arguments.At(0).As<TypeReference>().Type;
            }

            var typeReference = GetPath(_path + "`" + arguments.Length.ToString(CultureInfo.InvariantCulture)).As<TypeReference>();

            if (typeReference == null)
            {
                return Undefined.Instance;
            }

            var genericType = typeReference.Type.MakeGenericType(genericTypes);

            return TypeReference.CreateTypeReference(Engine, genericType);
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:26,代码来源:NamespaceReference.cs


示例4: Stringify

        public JsValue Stringify(JsValue thisObject, JsValue[] arguments)
        {
            JsValue 
                value = Undefined.Instance, 
                replacer = Undefined.Instance,
                space = Undefined.Instance;

            if (arguments.Length > 2)
            {
                space = arguments[2];
            }

            if (arguments.Length > 1)
            {
                replacer = arguments[1];
            }

            if (arguments.Length > 0)
            {
                value = arguments[0];
            }

            var serializer = new JsonSerializer(_engine);
            if (value == Undefined.Instance && replacer == Undefined.Instance) {
                return Undefined.Instance;
            }
            else {
                return serializer.Serialize(value, replacer, space);
            }
        }
开发者ID:Neproify,项目名称:ivmp,代码行数:30,代码来源:JsonInstance.cs


示例5: IsPrototypeOf

        private JsValue IsPrototypeOf(JsValue thisObject, JsValue[] arguments)
        {
            var arg = arguments[0];
            if (!arg.IsObject())
            {
                return false;
            }

            var v = arg.AsObject();

            var o = TypeConverter.ToObject(Engine, thisObject);
            while (true)
            {
                v = v.Prototype;

                if (v == null)
                {
                    return false;
                }

                if (o == v)
                {
                    return true;
                }

            }
        }
开发者ID:BusinessActs,项目名称:jint,代码行数:27,代码来源:ObjectPrototype.cs


示例6: Bind

        private JsValue Bind(JsValue thisObj, JsValue[] arguments)
        {
            var target = thisObj.TryCast<ICallable>(x =>
            {
                throw new JavaScriptException(Engine.TypeError);
            });
            
            var thisArg = arguments.At(0);
            var f = new BindFunctionInstance(Engine) {Extensible = true};
            f.TargetFunction = thisObj;
            f.BoundThis = thisArg;
            f.BoundArgs = arguments.Skip(1).ToArray();
            f.Prototype = Engine.Function.PrototypeObject;

            var o = target as FunctionInstance;
            if (o != null)
            {
                var l = TypeConverter.ToNumber(o.Get("length")) - (arguments.Length - 1);
                f.FastAddProperty("length", System.Math.Max(l, 0), false, false, false); 
            }
            else
            {
                f.FastAddProperty("length", 0, false, false, false); 
            }
            

            var thrower = Engine.Function.ThrowTypeError;
            f.DefineOwnProperty("caller", new PropertyDescriptor(thrower, thrower, false, false), false);
            f.DefineOwnProperty("arguments", new PropertyDescriptor(thrower, thrower, false, false), false);


            return f;
        }
开发者ID:Rohansi,项目名称:jint,代码行数:33,代码来源:FunctionPrototype.cs


示例7: Put

        public override void Put(string propertyName, JsValue value, bool throwOnError)
        {
            if (!CanPut(propertyName))
            {
                if (throwOnError)
                {
                    throw new JavaScriptException(Engine.TypeError);
                }

                return;
            }

            var ownDesc = GetOwnProperty(propertyName);

            if (ownDesc == null)
            {
                if (throwOnError)
                {
                    throw new JavaScriptException(Engine.TypeError, "Unknown member: " + propertyName);
                }
                else
                {
                    return;
                }
            }

            ownDesc.Value = value;
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:28,代码来源:ObjectWrapper+.cs


示例8: ToString

        public JsValue ToString(JsValue thisObject, JsValue[] arguments)
        {
            var o = thisObject.TryCast<ObjectInstance>();
            if (o == null)
            {
                throw new JavaScriptException(Engine.TypeError);
            }

            var name = TypeConverter.ToString(o.Get("name"));

            var msgProp = o.Get("message");
            string msg;
            if (msgProp == Undefined.Instance)
            {
                msg = "";
            }
            else
            {
                msg = TypeConverter.ToString(msgProp);
            }
            if (name == "")
            {
                return msg;
            }
            if (msg == "")
            {
                return name;
            }
            return name + ": " + msg;
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:30,代码来源:ErrorPrototype.cs


示例9: Put

        /// Implementation from ObjectInstance official specs as the one 
        /// in ObjectInstance is optimized for the general case and wouldn't work 
        /// for arrays
        public override void Put(string propertyName, JsValue value, bool throwOnError)
        {
            if (!CanPut(propertyName))
            {
                if (throwOnError)
                {
                    throw new JavaScriptException(Engine.TypeError);
                }

                return;
            }

            var ownDesc = GetOwnProperty(propertyName);

            if (ownDesc.IsDataDescriptor())
            {
                var valueDesc = new PropertyDescriptor(value: value, writable: null, enumerable: null, configurable: null);
                DefineOwnProperty(propertyName, valueDesc, throwOnError);
                return;
            }

            // property is an accessor or inherited
            var desc = GetProperty(propertyName);

            if (desc.IsAccessorDescriptor())
            {
                var setter = desc.Set.Value.TryCast<ICallable>();
                setter.Call(new JsValue(this), new[] { value });
            }
            else
            {
                var newDesc = new PropertyDescriptor(value, true, true, true);
                DefineOwnProperty(propertyName, newDesc, throwOnError);
            }
        }
开发者ID:Willy-Kimura,项目名称:jint,代码行数:38,代码来源:ArrayInstance.cs


示例10: HasInstance

        public virtual bool HasInstance(JsValue v)
        {
            var vObj = v.TryCast<ObjectInstance>();
            if (vObj == null)
            {
                return false;
            }
            
            var po = Get("prototype");
            if (!po.IsObject())
            {
                throw new JavaScriptException(_engine.TypeError, string.Format("Function has non-object prototype '{0}' in instanceof check", TypeConverter.ToString(po)));
            }

            var o = po.AsObject();
            
            if (o == null)
            {
                throw new JavaScriptException(_engine.TypeError);    
            }

            while (true)
            {
                vObj = vObj.Prototype;

                if (vObj == null)
                {
                    return false;
                }
                if (vObj == o)
                {
                    return true;
                }
            }
        }
开发者ID:BusinessActs,项目名称:jint,代码行数:35,代码来源:FunctionInstance.cs


示例11: Invoke

        public object Invoke(DispatchIdentifier id, DispatchType dispType, JsValue[] jsArgs, out Type returnType)
        {
            MemberInfo member = GetMember(id.AsString);
            if (member == null) {
                returnType = typeof(void);
                return null;
            }

            Debug.WriteLine(string.Format("{0}, {1}.{2}", dispType, this.target, member.Name));
            if (member is MethodInfo && dispType == DispatchType.PropertyGet) {
                var method = (MethodInfo)member;
                return GetMethodAsProperty((MethodInfo)member, this.target, out returnType);
            }

            var args = this.bridge.UnwrapParameters(jsArgs, dispType, member);
            if (dispType.IsMethod()) {
                var method = (MethodBase)member;
                returnType = method.IsConstructor ? method.DeclaringType : ((MethodInfo)method).ReturnType;
                return method.Invoke(this.target, args);
            }

            if (dispType.IsPropertyGet()) {
                var pi = (PropertyInfo)member;
                returnType = pi.PropertyType;
                return pi.GetValue(this.target, null);
            }

            if (dispType.IsPropertyPut()) {
                var pi = (PropertyInfo)member;
                pi.SetValue(this.target, args.First(), null);
                returnType = typeof(void);
                return null;
            }
            throw new NotSupportedException();
        }
开发者ID:JimmyJune,项目名称:DotWeb,代码行数:35,代码来源:JsObjectWrapper.cs


示例12: Parse

        private JsValue Parse(JsValue thisObj, JsValue[] arguments)
        {
            DateTime result;
            var date = TypeConverter.ToString(arguments.At(0));

            if (!DateTime.TryParseExact(date, new[]
            {
                "yyyy-MM-ddTHH:mm:ss.FFF",
                "yyyy-MM-ddTHH:mm:ss",
                "yyyy-MM-ddTHH:mm",
                "yyyy-MM-dd",
                "yyyy-MM",
                "yyyy"
            }, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeUniversal, out result))
            {
                if (!DateTime.TryParseExact(date, new[]
                {
                    // Formats used in DatePrototype toString methods
                    "ddd MMM dd yyyy HH:mm:ss 'GMT'K",
                    "ddd MMM dd yyyy",
                    "HH:mm:ss 'GMT'K",

                    // standard formats
                    "yyyy-M-dTH:m:s.FFFK",
                    "yyyy/M/dTH:m:s.FFFK",
                    "yyyy-M-dTH:m:sK",
                    "yyyy/M/dTH:m:sK",
                    "yyyy-M-dTH:mK",
                    "yyyy/M/dTH:mK",
                    "yyyy-M-d H:m:s.FFFK",
                    "yyyy/M/d H:m:s.FFFK",
                    "yyyy-M-d H:m:sK",
                    "yyyy/M/d H:m:sK",
                    "yyyy-M-d H:mK",
                    "yyyy/M/d H:mK",
                    "yyyy-M-dK",
                    "yyyy/M/dK",
                    "yyyy-MK",
                    "yyyy/MK",
                    "yyyyK",
                    "THH:mm:ss.FFFK",
                    "THH:mm:ssK",
                    "THH:mmK",
                    "THHK"
                }, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal, out result))
                {
                    if (!DateTime.TryParse(date, Engine.Options.GetCulture(), DateTimeStyles.AdjustToUniversal, out result))
                    {
                        if (!DateTime.TryParse(date, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal, out result))
                        {
                            // unrecognized dates should return NaN (15.9.4.2)
                            return double.NaN;
                        }
                    }
                }
            }

            return FromDateTime(result);
        }
开发者ID:Willy-Kimura,项目名称:jint,代码行数:59,代码来源:DateConstructor.cs


示例13: Call

        /// <summary>
        /// http://www.ecma-international.org/ecma-262/5.1/#sec-13.2.1
        /// </summary>
        /// <param name="thisArg"></param>
        /// <param name="arguments"></param>
        /// <returns></returns>
        public override JsValue Call(JsValue thisArg, JsValue[] arguments)
        {
            using (new StrictModeScope(Strict, true))
            {
                // setup new execution context http://www.ecma-international.org/ecma-262/5.1/#sec-10.4.3
                JsValue thisBinding;
                if (StrictModeScope.IsStrictModeCode)
                {
                    thisBinding = thisArg;
                }
                else if (thisArg == Undefined.Instance || thisArg == Null.Instance)
                {
                    thisBinding = Engine.Global;
                }
                else if (!thisArg.IsObject())
                {
                    thisBinding = TypeConverter.ToObject(Engine, thisArg);
                }
                else
                {
                    thisBinding = thisArg;
                }

                var localEnv = LexicalEnvironment.NewDeclarativeEnvironment(Engine, Scope);

                Engine.EnterExecutionContext(localEnv, localEnv, thisBinding);

                try
                {
                    Engine.DeclarationBindingInstantiation(
                        DeclarationBindingType.FunctionCode,
                        _functionDeclaration.FunctionDeclarations,
                        _functionDeclaration.VariableDeclarations,
                        this,
                        arguments);

                    var result = Engine.ExecuteStatement(_functionDeclaration.Body);

                    if (result.Type == Completion.Throw)
                    {
                        JavaScriptException ex = new JavaScriptException(result.GetValueOrDefault());
                        ex.Location = result.Location;
                        throw ex;
                    }

                    if (result.Type == Completion.Return)
                    {
                        return result.GetValueOrDefault();
                    }
                }
                finally
                {
                    Engine.LeaveExecutionContext();
                }

                return Undefined.Instance;
            }
        }
开发者ID:Shuffle-Game,项目名称:jint,代码行数:64,代码来源:ScriptFunctionInstance.cs


示例14: ParseInt

        /// <summary>
        /// http://www.ecma-international.org/ecma-262/5.1/#sec-15.1.2.2
        /// </summary>
        public static JsValue ParseInt(JsValue thisObject, JsValue[] arguments)
        {
            string inputString = TypeConverter.ToString(arguments.At(0));
            var s = inputString.Trim();

            var sign = 1;
            if (!System.String.IsNullOrEmpty(s))
            {
                if (s[0] == '-')
                {
                    sign = -1;
                }
                
                if (s[0] == '-' || s[0] == '+')
                {
                    s = s.Substring(1);
                }
            }

            var stripPrefix = true;

            int radix = arguments.Length > 1 ? TypeConverter.ToInt32(arguments[1]) : 0;

            if (radix == 0)
            {
                if (s.Length >= 2 && s.StartsWith("0x") || s.StartsWith("0X"))
                {
                    radix = 16;
                }
                else
                {
                    radix = 10;
                }
            }
            else if (radix < 2 || radix > 36)
            {
                return double.NaN;
            }
            else if(radix != 16)
            {
                stripPrefix = false;
            }

            if (stripPrefix && s.Length >= 2 && s.StartsWith("0x") || s.StartsWith("0X"))
            {
                s = s.Substring(2);
            }

            try
            {
                return sign * Parse(s, radix).AsNumber();
            }
            catch
            {
                return double.NaN;
            }

        }
开发者ID:Willy-Kimura,项目名称:jint,代码行数:61,代码来源:GlobalObject.cs


示例15: CreateArgumentsObject

        public static ArgumentsInstance CreateArgumentsObject(Engine engine, FunctionInstance func, string[] names, JsValue[] args, EnvironmentRecord env, bool strict)
        {
            var obj = new ArgumentsInstance(engine, self =>
            {
                var len = args.Length;
                self.FastAddProperty("length", len, true, false, true);
                var map = engine.Object.Construct(Arguments.Empty);
                var mappedNamed = new List<string>();
                var indx = 0;
                while (indx <= len - 1)
                {
                    var indxStr = TypeConverter.ToString(indx);
                    var val = args[indx];
                    self.FastAddProperty(indxStr, val, true, true, true);
                    if (indx < names.Length)
                    {
                        var name = names[indx];
                        if (!strict && !mappedNamed.Contains(name))
                        {
                            mappedNamed.Add(name);
                            Func<JsValue, JsValue> g = n => env.GetBindingValue(name, false);
                            var p = new Action<JsValue, JsValue>((n, o) => env.SetMutableBinding(name, o, true));

                            map.DefineOwnProperty(indxStr, new ClrAccessDescriptor(engine, g, p) { Configurable = true }, false);
                        }
                    }
                    indx++;
                }

                // step 12
                if (mappedNamed.Count > 0)
                {
                    self.ParameterMap = map;
                }

                // step 13
                if (!strict)
                {
                    self.FastAddProperty("callee", func, true, false, true);
                }
                // step 14
                else
                {
                    var thrower = engine.Function.ThrowTypeError;
                    self.DefineOwnProperty("caller", new PropertyDescriptor(get: thrower, set: thrower, enumerable: false, configurable: false), false);
                    self.DefineOwnProperty("callee", new PropertyDescriptor(get: thrower, set: thrower, enumerable: false, configurable: false), false);
                }
            });

            // These properties are pre-initialized as their don't trigger
            // the EnsureInitialized() event and are cheap
            obj.Prototype = engine.Object.PrototypeObject;
            obj.Extensible = true;
            obj.Strict = strict;


            return obj;
        }
开发者ID:Neproify,项目名称:ivmp,代码行数:58,代码来源:ArgumentsInstance.cs


示例16: Call

        public override JsValue Call(JsValue thisObject, JsValue[] arguments)
        {
            if (arguments.Length == 0)
            {
                return false;
            }

            return TypeConverter.ToBoolean(arguments[0]);
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:9,代码来源:BooleanConstructor.cs


示例17: Call

        public override JsValue Call(JsValue thisObject, JsValue[] arguments)
        {
            if (arguments.Length == 0)
            {
                return "";
            }

            return TypeConverter.ToString(arguments[0]);
        }
开发者ID:Rohansi,项目名称:jint,代码行数:9,代码来源:StringConstructor.cs


示例18: IsArrayIndex

        public static bool IsArrayIndex(JsValue p, out uint index)
        {
            index = ParseArrayIndex(TypeConverter.ToString(p));

            return index != uint.MaxValue;

            // 15.4 - Use an optimized version of the specification
            // return TypeConverter.ToString(index) == TypeConverter.ToString(p) && index != uint.MaxValue;
        }
开发者ID:hnafar,项目名称:jint,代码行数:9,代码来源:ArrayInstance.cs


示例19: HasInstance

 public override bool HasInstance(JsValue v)
 {
     var f = TargetFunction.TryCast<FunctionInstance>(x =>
     {
         throw new JavaScriptException(Engine.TypeError);
     });
       
     return f.HasInstance(v);
 }
开发者ID:Rohansi,项目名称:jint,代码行数:9,代码来源:BindFunctionInstance.cs


示例20: Construct

        public ObjectInstance Construct(JsValue[] arguments)
        {
            var target = TargetFunction.TryCast<IConstructor>(x =>
            {
                throw new JavaScriptException(Engine.TypeError);
            });

            return target.Construct(BoundArgs.Union(arguments).ToArray());
        }
开发者ID:Rohansi,项目名称:jint,代码行数:9,代码来源:BindFunctionInstance.cs



注:本文中的JsValue类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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C# JsonArray类代码示例发布时间:2022-05-24
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