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C# JsValue.AsNumber方法代码示例

本文整理汇总了C#中JsValue.AsNumber方法的典型用法代码示例。如果您正苦于以下问题:C# JsValue.AsNumber方法的具体用法?C# JsValue.AsNumber怎么用?C# JsValue.AsNumber使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在JsValue的用法示例。


在下文中一共展示了JsValue.AsNumber方法的6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,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ToBoolean

        /// <summary>
        /// http://www.ecma-international.org/ecma-262/5.1/#sec-9.2
        /// </summary>
        /// <param name="o"></param>
        /// <returns></returns>
        public static bool ToBoolean(JsValue o)
        {
            if (o.IsObject())
            {
                return true;
            }

            if (o == Undefined.Instance || o == Null.Instance)
            {
                return false;
            }
            
            if (o.IsBoolean())
            {
                return o.AsBoolean();
            }

            if (o.IsNumber())
            {
                var n = o.AsNumber();
                if (n.Equals(0) || double.IsNaN(n))
                {
                    return false;
                }
                else
                {
                    return true;
                }
            }

            if (o.IsString())
            {
                var s = o.AsString();
                if (String.IsNullOrEmpty(s))
                {
                    return false;
                }
                else
                {
                    return true;
                }
            }

            return true;
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:50,代码来源:TypeConverter.cs

示例2: Serialize

        public JsValue Serialize(JsValue value, JsValue replacer, JsValue space)
        {
            _stack = new Stack<object>();

            // for JSON.stringify(), any function passed as the first argument will return undefined
            // if the replacer is not defined. The function is not called either.
            if (value.Is<ICallable>() && replacer == Undefined.Instance) 
            {
                return Undefined.Instance;
            }

            if (replacer.IsObject())
            {
                if (replacer.Is<ICallable>())
                {
                    _replacerFunction = replacer;
                }
                else
                {
                    var replacerObj = replacer.AsObject();
                    if (replacerObj.Class == "Array")
                    {
                        _propertyList = new List<string>();
                    }

                    foreach (var property in replacerObj.GetOwnProperties().Select(x => x.Value))
                    {
                        JsValue v = _engine.GetValue(property);
                        string item = null;
                        if (v.IsString())
                        {
                            item = v.AsString();
                        }
                        else if (v.IsNumber())
                        {
                            item = TypeConverter.ToString(v);
                        }
                        else if (v.IsObject())
                        {
                            var propertyObj = v.AsObject();
                            if (propertyObj.Class == "String" || propertyObj.Class == "Number")
                            {
                                item = TypeConverter.ToString(v);
                            }
                        }

                        if (item != null && !_propertyList.Contains(item))
                        {
                            _propertyList.Add(item);
                        }

                    }
                }
            }

            if (space.IsObject())
            {
                var spaceObj = space.AsObject();
                if (spaceObj.Class == "Number")
                {
                    space = TypeConverter.ToNumber(spaceObj);
                }
                else if (spaceObj.Class == "String")
                {
                    space = TypeConverter.ToString(spaceObj);
                }
            }

            // defining the gap
            if (space.IsNumber())
            {
                if (space.AsNumber() > 0) {
                    _gap = new System.String(' ', (int)System.Math.Min(10, space.AsNumber()));
                }
                else 
                {
                    _gap = string.Empty;
                }
            }
            else if (space.IsString())
            {
                var stringSpace = space.AsString();
                _gap = stringSpace.Length <= 10 ? stringSpace : stringSpace.Substring(0, 10);
            }
            else
            {
                _gap = string.Empty;
            }

            var wrapper = _engine.Object.Construct(Arguments.Empty);
            wrapper.DefineOwnProperty("", new PropertyDescriptor(value, true, true, true), false);

            return Str("", wrapper);
        }
开发者ID:Willy-Kimura,项目名称:jint,代码行数:94,代码来源:JsonSerializer.cs

示例3: ToObject

        public static ObjectInstance ToObject(Engine engine, JsValue value)
        {
            if (value.IsObject())
            {
                return value.AsObject();
            }

            if (value == Undefined.Instance)
            {
                throw new JavaScriptException(engine.TypeError);
            }

            if (value == Null.Instance)
            {
                throw new JavaScriptException(engine.TypeError);
            }

            if (value.IsBoolean())
            {
                return engine.Boolean.Construct(value.AsBoolean());
            }

            if (value.IsNumber())
            {
                return engine.Number.Construct(value.AsNumber());
            }

            if (value.IsString())
            {
                return engine.String.Construct(value.AsString());
            }

            throw new JavaScriptException(engine.TypeError);
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:34,代码来源:TypeConverter.cs

示例4: ToString

        /// <summary>
        /// http://www.ecma-international.org/ecma-262/5.1/#sec-9.8
        /// </summary>
        /// <param name="o"></param>
        /// <returns></returns>
        public static string ToString(JsValue o)
        {
            if (o.IsObject())
            {
                var p = o.AsObject() as IPrimitiveInstance;
                if (p != null)
                {
                    o = p.PrimitiveValue;
                }
            }

            if (o.IsString())
            {
                return o.AsString();
            }

            if (o == Undefined.Instance)
            {
                return Undefined.Text;
            }

            if (o == Null.Instance)
            {
                return Null.Text;
            }
            
            if (o.IsBoolean())
            {
                return o.AsBoolean() ? "true" : "false";
            }

            if (o.IsNumber())
            {
                return NumberPrototype.ToNumberString(o.AsNumber());
            }

            return ToString(ToPrimitive(o, Types.String));
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:43,代码来源:TypeConverter.cs

示例5: ToNumber

        /// <summary>
        /// http://www.ecma-international.org/ecma-262/5.1/#sec-9.3
        /// </summary>
        /// <param name="o"></param>
        /// <returns></returns>
        public static double ToNumber(JsValue o)
        {
            // check number first as this is what is usually expected
            if (o.IsNumber())
            {
                return o.AsNumber();
            } 
            
            if (o.IsObject())
            {
                var p = o.AsObject() as IPrimitiveInstance;
                if (p != null)
                {
                    o = p.PrimitiveValue;
                }
            }

            if (o == Undefined.Instance)
            {
                return double.NaN;
            }

            if (o == Null.Instance)
            {
                return 0;
            }

            if (o.IsBoolean())
            {
                return o.AsBoolean() ? 1 : 0;
            }

            if (o.IsString())
            {
                var s = o.AsString().Trim();

                if (String.IsNullOrEmpty(s))
                {
                    return 0;
                }

                if ("+Infinity".Equals(s) || "Infinity".Equals(s))
                {
                    return double.PositiveInfinity;
                }

                if ("-Infinity".Equals(s))
                {
                    return double.NegativeInfinity;
                }

                // todo: use a common implementation with JavascriptParser
                try
                {
                    if (!s.StartsWith("0x", StringComparison.OrdinalIgnoreCase))
                    {
                        var start = s[0];
                        if (start != '+' && start != '-' && start != '.' && !char.IsDigit(start))
                        {
                            return double.NaN;
                        }

                        double n = Double.Parse(s,
                            NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign |
                            NumberStyles.AllowLeadingWhite | NumberStyles.AllowTrailingWhite |
                            NumberStyles.AllowExponent, CultureInfo.InvariantCulture);
                        if (s.StartsWith("-") && n.Equals(0))
                        {
                            return -0.0;
                        }

                        return n;
                    }

                    int i = int.Parse(s.Substring(2), NumberStyles.HexNumber, CultureInfo.InvariantCulture);
                 
                    return i;
                }
                catch (OverflowException)
                {
                    return s.StartsWith("-") ? double.NegativeInfinity : double.PositiveInfinity;
                }
                catch
                {
                    return double.NaN;
                }
            }

            return ToNumber(ToPrimitive(o, Types.Number));
        }
开发者ID:modulexcite,项目名称:Transformalize,代码行数:95,代码来源:TypeConverter.cs

示例6: 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;
            }
            if (InternalArray != null)
            {
                int ind;
                if (int.TryParse(propertyName, out ind))
                {
                    object val;
                    switch (value.Type)
                    {
                        case Types.Undefined:
                            val = null;
                            break;
                        case Types.Null:
                            val = null;
                            break;
                        case Types.Boolean:
                            val = value.AsBoolean();
                            break;
                        case Types.String:
                            val = value.AsString();
                            break;
                        case Types.Number:
                            val = value.AsNumber();
                            break;
                        case Types.Object:
                            val = value;
                            var ow = ((JsValue)val).AsObject() as ObjectWrapper;
                            if (ow != null)
                            {
                                val = ow.Target;
                            }
                            break;
                        default:
                            throw new ArgumentOutOfRangeException();
                    }
                    if (ind >= InternalArray.Count)
                    {
                        for (int i = InternalArray.Count; i <= ind; i++)
                        {
                            if (val != null)
                                InternalArray.Add(GetDefault(val.GetType()));
                            else
                                InternalArray.Add(null);
                        }
                    }

                    InternalArray[ind] = val;
                }
            }

            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:Shuffle-Game,项目名称:jint,代码行数:86,代码来源:ArrayInstance.cs


注:本文中的JsValue.AsNumber方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,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。