public override object Call(IObj that, object[] args)
{
if (that.Class != ObjClass.Number || !that.HasValue())
throw new ShouldThrowTypeError();
return (that as ValueObj).Value;
}
public override object Call(IObj that, object[] args)
{
if (that.Class != ObjClass.Boolean || !that.HasValue())
throw new ShouldThrowTypeError();
return JsTypeConverter.ToBoolean((that as ValueObj).Value) ? "true" : "false";
}
public override object Call(IObj that, object[] args)
{
if (that.Class != ObjClass.Number || !that.HasValue())
throw new ShouldThrowTypeError();
//TODO: this should handle args[0] (radix) correctly.
return JsTypeConverter.ToString((that as ValueObj).Value);
}
public override object Call(IObj that, object[] args)
{
if (that.Class != ObjClass.Number || !that.HasValue())
throw new ShouldThrowTypeError();
var fractions = HasArgs(args) ? JsTypeConverter.ToInt32(args[0]) : 0;
var dbl = JsTypeConverter.ToNumber((that as ValueObj).Value);
return dbl.ToString("f" + fractions, CultureInfo.InvariantCulture);
}
public override object Call(IObj that, object[] args)
{
if (that.Class != ObjClass.Number || !that.HasValue())
throw new ShouldThrowTypeError();
var dbl = JsTypeConverter.ToNumber((that as ValueObj).Value);
if (double.IsNaN(dbl) || double.IsInfinity(dbl) || !HasArgs(args) || args[0] is Undefined)
return JsTypeConverter.ToString(dbl);
var precision = HasArgs(args) ? JsTypeConverter.ToInt32(args[0]) : 1;
var asString = dbl.ToString("e23", CultureInfo.InvariantCulture);
var numDecimals = asString.IndexOfAny(new char[] { '.', 'e' });
precision -= (numDecimals == -1 ? asString.Length : numDecimals);
return dbl.ToString("f" + (precision < 1 ? 1 : precision), CultureInfo.InvariantCulture);
}
