public static double FromDateTime(DateTime dt)
{
var convertToUtcAfter = (dt.Kind == DateTimeKind.Unspecified);
var dateAsUtc = dt.Kind == DateTimeKind.Local
? dt.ToUniversalTime()
: DateTime.SpecifyKind(dt, DateTimeKind.Utc);
var result = (dateAsUtc - Epoch).TotalMilliseconds;
if (convertToUtcAfter)
{
result = DatePrototype.Utc(result);
}
return(System.Math.Floor(result));
}
public override Completion InternalConstruct(IReadOnlyList <IValue> arguments, Object?newTarget)
{
if (arguments.Count == 0)
{
return(Completion.NormalCompletion(Construct(DateTime.UtcNow)));
}
else if (arguments.Count == 1)
{
if (arguments[0] is DateObject date)
{
return(Completion.NormalCompletion(Construct(date.PrimitiveValue)));
}
var vComp = arguments[0].ToPrimitive();
if (vComp.IsAbrupt())
{
return(vComp);
}
var v = vComp.value !;
if (v is StringValue)
{
var parse = Parse(UndefinedValue.Instance, new[] { v });
return(Completion.NormalCompletion(Construct(((NumberValue)parse.value !).number)));
}
var number = v.ToNumber();
if (number.IsAbrupt())
{
return(number);
}
var numberValue = (number.value as NumberValue) !.number;
return(Completion.NormalCompletion(Construct(TimeClip(numberValue))));
}
else
{
var yComp = arguments.At(0);
if (yComp.IsAbrupt())
{
return(yComp);
}
yComp = yComp.value !.ToNumber();
if (yComp.IsAbrupt())
{
return(yComp);
}
var y = (yComp.value as NumberValue) !.number;
var mComp = arguments.At(1);
if (mComp.IsAbrupt())
{
return(mComp);
}
mComp = mComp.value !.ToNumber();
if (mComp.IsAbrupt())
{
return(mComp);
}
var m = (mComp.value as NumberValue) !.number;
var dtArg = arguments.At(2, NumberValue.One);
var dtComp = dtArg.ToNumber();
if (dtComp.IsAbrupt())
{
return(dtComp);
}
var dt = (dtComp.value as NumberValue) !.number;
var hArg = arguments.At(3, NumberValue.PositiveZero);
var hComp = hArg !.ToNumber();
if (hComp.IsAbrupt())
{
return(hComp);
}
var h = (hComp.value as NumberValue) !.number;
var minArg = arguments.At(4, NumberValue.PositiveZero);
var minComp = minArg.ToNumber();
if (minComp.IsAbrupt())
{
return(minComp);
}
var min = (minComp.value as NumberValue) !.number;
var sArg = arguments.At(5, NumberValue.PositiveZero);
var sComp = sArg.ToNumber();
if (sComp.IsAbrupt())
{
return(sComp);
}
var s = (sComp.value as NumberValue) !.number;
var milliArg = arguments.At(6, NumberValue.PositiveZero);
var milliComp = milliArg.ToNumber();
if (milliComp.IsAbrupt())
{
return(milliComp);
}
var milli = (milliComp.value as NumberValue) !.number;
var yInteger = (int)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));
return(Completion.NormalCompletion(Construct(TimeClip(DatePrototype.Utc(finalDate)))));
}
}
