private double ConstructTimeValue(JsValue[] arguments, bool useUtc)
{
if (arguments.Length < 2)
{
throw new ArgumentOutOfRangeException("arguments", "There must be at least two arguments.");
}
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(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(useUtc ? finalDate : PrototypeObject.Utc(finalDate));
}
public static DatePrototype CreatePrototypeObject(Engine engine, DateConstructor dateConstructor)
{
var obj = new DatePrototype(engine)
{
_prototype = engine.Object.PrototypeObject,
_dateConstructor = dateConstructor
};
return(obj);
}
internal DateConstructor(
Engine engine,
Realm realm,
FunctionPrototype functionPrototype,
ObjectPrototype objectPrototype)
: base(engine, realm, _functionName)
{
_prototype = functionPrototype;
PrototypeObject = new DatePrototype(engine, realm, this, objectPrototype);
_length = new PropertyDescriptor(7, PropertyFlag.Configurable);
_prototypeDescriptor = new PropertyDescriptor(PrototypeObject, PropertyFlag.AllForbidden);
}
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);
}
/// <summary>
/// https://tc39.es/ecma262/#sec-date
/// </summary>
private ObjectInstance Construct(JsValue[] arguments, JsValue newTarget)
{
double dv;
if (arguments.Length == 0 || newTarget.IsUndefined())
{
dv = FromDateTime(DateTime.UtcNow);
}
else if (arguments.Length == 1)
{
if (arguments[0] is DateInstance date)
{
return(Construct(date.DateValue));
}
var v = TypeConverter.ToPrimitive(arguments[0]);
if (v.IsString())
{
return(Construct(((JsNumber)Parse(Undefined, Arguments.From(v)))._value));
}
dv = TimeClip(TypeConverter.ToNumber(v));
}
else
{
var y = TypeConverter.ToNumber(arguments.At(0));
var m = TypeConverter.ToNumber(arguments.At(1));
var dt = TypeConverter.ToNumber(arguments.At(2, JsNumber.PositiveOne));
var h = TypeConverter.ToNumber(arguments.At(3, JsNumber.PositiveZero));
var min = TypeConverter.ToNumber(arguments.At(4, JsNumber.PositiveZero));
var s = TypeConverter.ToNumber(arguments.At(5, JsNumber.PositiveZero));
var milli = TypeConverter.ToNumber(arguments.At(6, JsNumber.PositiveZero));
var yInteger = TypeConverter.ToInteger(y);
if (!double.IsNaN(y) && 0 <= yInteger && yInteger <= 99)
{
y += 1900;
}
var finalDate = DatePrototype.MakeDate(
DatePrototype.MakeDay(y, m, dt),
DatePrototype.MakeTime(h, min, s, milli));
dv = TimeClip(PrototypeObject.Utc(finalDate));
}
var o = OrdinaryCreateFromConstructor(
newTarget,
static intrinsics => intrinsics.Date.PrototypeObject,
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);
}
public static DateConstructor CreateDateConstructor(Engine engine)
{
var obj = new DateConstructor(engine)
{
_prototype = engine.Function.PrototypeObject
};
// The value of the [[Prototype]] internal property of the Date constructor is the Function prototype object
obj.PrototypeObject = DatePrototype.CreatePrototypeObject(engine, obj);
obj._length = new PropertyDescriptor(7, PropertyFlag.Configurable);
// The initial value of Date.prototype is the Date prototype object
obj._prototypeDescriptor = new PropertyDescriptor(obj.PrototypeObject, PropertyFlag.AllForbidden);
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))));
}
}
private JsValue Utc(JsValue thisObj, JsValue[] arguments)
{
var y = TypeConverter.ToNumber(arguments.At(0));
var m = TypeConverter.ToNumber(arguments.At(1, JsNumber.PositiveZero));
var dt = TypeConverter.ToNumber(arguments.At(2, JsNumber.One));
var h = TypeConverter.ToNumber(arguments.At(3, JsNumber.PositiveZero));
var min = TypeConverter.ToNumber(arguments.At(4, JsNumber.PositiveZero));
var s = TypeConverter.ToNumber(arguments.At(5, JsNumber.PositiveZero));
var milli = TypeConverter.ToNumber(arguments.At(6, JsNumber.PositiveZero));
var yInteger = TypeConverter.ToInteger(y);
if (!double.IsNaN(y) && 0 <= yInteger && yInteger <= 99)
{
y = yInteger + 1900;
}
var finalDate = DatePrototype.MakeDate(
DatePrototype.MakeDay(y, m, dt),
DatePrototype.MakeTime(h, min, s, milli));
return(TimeClip(finalDate));
}