public static DatePrototype CreatePrototypeObject(Engine engine, DateConstructor dateConstructor)
{
var obj = new DatePrototype(engine)
{
Prototype = engine.Object.PrototypeObject,
Extensible = true,
PrimitiveValue = double.NaN
};
obj.FastAddProperty("constructor", dateConstructor, true, false, true);
return obj;
}
public static DatePrototype CreatePrototypeObject(Engine engine, DateConstructor dateConstructor)
{
var obj = new DatePrototype(engine)
{
Prototype = engine.Object.PrototypeObject,
Extensible = true,
PrimitiveValue = double.NaN
};
obj.FastAddProperty("constructor", dateConstructor, true, false, true);
return(obj);
}
public static DateConstructor CreateDateConstructor(Engine engine)
{
var obj = new DateConstructor(engine);
obj.Extensible = true;
// The value of the [[Prototype]] internal property of the Date constructor is the Function prototype object
obj.Prototype = engine.Function.PrototypeObject;
obj.PrototypeObject = DatePrototype.CreatePrototypeObject(engine, obj);
obj.FastAddProperty("length", 7, false, false, false);
// The initial value of Date.prototype is the Date prototype object
obj.FastAddProperty("prototype", obj.PrototypeObject, false, false, false);
return(obj);
}
/// <summary>
/// http://www.ecma-international.org/ecma-262/5.1/#sec-15.9.3
/// </summary>
/// <param name="arguments"></param>
/// <returns></returns>
public ObjectInstance Construct(JsValue[] arguments)
{
if (arguments.Length == 0)
{
return(Construct(DateTime.Now));
}
else if (arguments.Length == 1)
{
var v = TypeConverter.ToPrimitive(arguments[0]);
if (v.IsString())
{
return(Parse(Undefined.Instance, Arguments.From(v)).AsObject());
}
return(Construct(DatePrototype.TimeClip(TypeConverter.ToNumber(v))));
}
else
{
var y = TypeConverter.ToNumber(arguments[0]);
var m = (int)TypeConverter.ToInteger(arguments[1]);
var dt = arguments.Length > 2 ? (int)TypeConverter.ToInteger(arguments[2]) : 1;
var h = arguments.Length > 3 ? (int)TypeConverter.ToInteger(arguments[3]) : 0;
var min = arguments.Length > 4 ? (int)TypeConverter.ToInteger(arguments[4]) : 0;
var s = arguments.Length > 5 ? (int)TypeConverter.ToInteger(arguments[5]) : 0;
var milli = arguments.Length > 6 ? (int)TypeConverter.ToInteger(arguments[6]) : 0;
for (int i = 2; i < arguments.Length; i++)
{
if (double.IsNaN(TypeConverter.ToNumber(arguments[i])))
{
return(Construct(double.NaN));
}
}
if ((!double.IsNaN(y)) && (0 <= TypeConverter.ToInteger(y)) && (TypeConverter.ToInteger(y) <= 99))
{
y += 1900;
}
var finalDate = DatePrototype.MakeDate(DatePrototype.MakeDay(y, m, dt),
DatePrototype.MakeTime(h, min, s, milli));
return(Construct(DatePrototype.TimeClip(DatePrototype.Utc(finalDate))));
}
}
