| public static ToNumber ( Object value ) : double | ||
| value | Object | |
| return | double | |
public static double min(Object x, Object y, params Object [] args)
{
ArrayList values = new ArrayList(args);
if (x != null)
{
values.Add(x);
}
if (y != null)
{
values.Add(y);
}
double val;
double result = Double.PositiveInfinity;
foreach (object value in values)
{
val = Convert.ToNumber(value);
if (Double.IsNaN(val))
{
return(Double.NaN);
}
else if (val < result)
{
result = val;
}
}
return(result);
}
public static Double min(params Object[] args)
{
Double dx, dy;
if (args == null || args.Length < 1)
{
return(Double.NegativeInfinity);
}
else
{
dx = args[0] is Double ?
(Double)args[0] : Convert.ToNumber(args[0]);
}
if (args.Length < 2)
{
return(dx);
}
else
{
dy = dx = args[1] is Double ?
(Double)args[1] : Convert.ToNumber(args[1]);
}
Double min = dx.CompareTo(dy) < 0 ? dx : dy;
if (args.Length > 2)
{
foreach (Object o in args)
{
min = MathObject.min(min, o);
}
}
return(min);
}
public static double setMonth(object thisObj, double dmonth,
object date)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject dt = (DateObject)thisObj;
double t = DateConstructor.LocalTime(dt.ms);
double new_date;
if (date == null)
{
new_date = DateConstructor.DateFromTime(t);
}
else
{
new_date = Convert.ToNumber(date);
}
double day = DateConstructor.MakeDay((double)DateConstructor.YearFromTime(t),
dmonth, new_date);
double new_val = DateConstructor.ToUTC(DateConstructor.MakeDate(day, t % DateConstructor.MS_PER_DAY));
dt.ms = DateConstructor.TimeClip(new_val);
return(dt.ms);
}
// Evaluate a numeric binary operator on two values.
public static Object DoOp(Object v1, Object v2, JSToken operatorTok)
{
double n1 = Convert.ToNumber(v1);
double n2 = Convert.ToNumber(v2);
switch (operatorTok)
{
case JSToken.Minus:
{
return(n1 - n2);
}
// Not reached.
case JSToken.Multiply:
{
return(n1 * n2);
}
// Not reached.
case JSToken.Divide:
{
return(n1 / n2);
}
// Not reached.
case JSToken.Modulo:
{
return(n1 % n2);
}
// Not reached.
}
throw new JScriptException(JSError.InternalError);
}
public static double setUTCSeconds(object thisObj, double dsec, object msec)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject date = (DateObject)thisObj;
double t = date.ms;
double new_ms;
if (msec == null)
{
new_ms = DateConstructor.msFromTime(t);
}
else
{
new_ms = Convert.ToNumber(msec);
}
double time = DateConstructor.MakeTime(DateConstructor.HourFromTime(t), DateConstructor.MinFromTime(t),
dsec, new_ms);
double day = Math.Floor(t / DateConstructor.MS_PER_DAY);
double new_val = DateConstructor.MakeDate(day, time);
date.ms = DateConstructor.TimeClip(new_val);
return(date.ms);
}
private static Object DoOp(Object v1, Object v2, IConvertible ic1, IConvertible ic2, JSToken operatorTok)
{
if (operatorTok == JSToken.Minus)
{
IConvertible ic1a = ic1;
Object p1 = Convert.ToPrimitive(v1, PreferredType.Either, ref ic1a);
TypeCode t1 = Convert.GetTypeCode(p1, ic1a);
if (t1 == TypeCode.Char)
{
IConvertible ic2a = ic2;
Object p2 = Convert.ToPrimitive(v2, PreferredType.Either, ref ic2a);
TypeCode t2 = Convert.GetTypeCode(p2, ic2a);
if (t2 == TypeCode.String)
{
String str2 = ic2a.ToString(null);
if (str2.Length == 1)
{
t2 = TypeCode.Char;
p2 = str2[0];
ic2a = Convert.GetIConvertible(p2);
}
}
Object result = NumericBinary.DoOp(Convert.ToNumber(p1, ic1a), Convert.ToNumber(p2, ic2a), operatorTok);
if (t2 != TypeCode.Char)
{
result = Convert.Coerce2(result, TypeCode.Char, false);
}
return(result);
}
}
return(NumericBinary.DoOp(Convert.ToNumber(v1, ic1), Convert.ToNumber(v2, ic2), operatorTok));
}
public static double min(Object x, Object y, params Object[] args)
{
if (x is Missing)
{
return(Double.PositiveInfinity);
}
double dx = Convert.ToNumber(x);
if (y is Missing)
{
return(dx);
}
double dy = Convert.ToNumber(y);
double result = MathObject.Compare(dx, dy);
if (result != result)
{
return(result);
}
double lhMin = dx;
if (result > 0)
{
lhMin = dy;
}
if (args.Length == 0)
{
return(lhMin);
}
return(MathObject.minv(lhMin, args, 0));
}
public int Compare(Object x, Object y)
{
if (x == null || x is Missing)
{
if (y == null || y is Missing)
{
return(0);
}
else
{
return(1);
}
}
else if (y == null || y is Missing)
{
return(-1);
}
if (this.compareFn != null)
{
double result = Convert.ToNumber(this.compareFn.Call(new Object[] { x, y }, null));
if (result != result)
{
throw new JScriptException(JSError.NumberExpected);
}
return((int)result);
}
else
{
return(String.CompareOrdinal(Convert.ToString(x), Convert.ToString(y)));
}
}
// Evaluate a numeric unary operator on a value.
public Object EvaluateUnary(Object v)
{
switch (operatorTok)
{
case JSToken.BitwiseNot:
{
return(~(Convert.ToInt32(v)));
}
// Not reached.
case JSToken.LogicalNot:
{
return(!(Convert.ToBoolean(v)));
}
// Not reached.
case JSToken.Minus:
{
return(-(Convert.ToNumber(v)));
}
// Not reached.
case JSToken.Plus:
{
return(Convert.ToNumber(v));
}
// Not reached.
}
throw new JScriptException(JSError.InternalError);
}
internal ErrorObject(ErrorPrototype parent, Object[] args)
: base(parent)
{
this.exception = null;
this.description = "";
this.number = 0;
if (args.Length == 1)
{
if (args[0] == null || Convert.IsPrimitiveNumericType(args[0].GetType()))
{
this.number = Convert.ToNumber(args[0]);
}
else
{
this.description = Convert.ToString(args[0]);
}
}
else if (args.Length > 1)
{
this.number = Convert.ToNumber(args[0]);
this.description = Convert.ToString(args[1]);
}
this.message = this.description;
this.noExpando = false;
}
public new ArrayObject CreateInstance(params Object[] args)
{
ArrayObject arrayObj = new ArrayObject(this.originalPrototype, typeof(ArrayObject));
if (args.Length != 0)
{
if (args.Length == 1)
{
Object arg0 = args[0];
IConvertible ic = Convert.GetIConvertible(arg0);
switch (Convert.GetTypeCode(arg0, ic))
{
case TypeCode.Char:
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
case TypeCode.UInt64:
case TypeCode.Single:
case TypeCode.Double:
case TypeCode.Decimal:
double d = Convert.ToNumber(arg0, ic);
uint len = Convert.ToUint32(arg0, ic);
if (d != (double)len)
{
throw new JScriptException(JSError.ArrayLengthConstructIncorrect);
}
arrayObj.length = len;
return(arrayObj);
}
}
if (args.Length == 1 && args[0] is Array)
{
Array array = (Array)args[0];
if (array.Rank != 1)
{
throw new JScriptException(JSError.TypeMismatch);
}
arrayObj.length = array.Length;
for (int i = 0; i < array.Length; i++)
{
arrayObj.SetValueAtIndex((uint)i, array.GetValue(i));
}
}
else
{
arrayObj.length = args.Length;
for (int i = 0; i < args.Length; i++)
{
arrayObj.SetValueAtIndex((uint)i, args[i]);
}
}
}
return(arrayObj);
}
//"x in y" should return true whenever "for (var z in y) if (z === x) return true" returns true
public static bool JScriptIn(Object v1, Object v2)
{
bool result = false;
if (v2 is ScriptObject)
{
return(!(((ScriptObject)v2).GetMemberValue(Convert.ToString(v1)) is Missing));
}
else if (v2 is Array)
{
Array arr = (Array)v2;
double d = Convert.ToNumber(v1);
int i = (int)d;
return(d == i && arr.GetLowerBound(0) <= i && i <= arr.GetUpperBound(0));
}
else if (v2 is IEnumerable)
{
if (v1 == null)
{
return(false);
}
//Do not enumerate when a direct lookup is available
if (v2 is IDictionary)
{
return(((IDictionary)v2).Contains(v1));
}
if (v2 is IExpando)
{
MemberInfo[] members = ((IReflect)v2).GetMember(Convert.ToString(v1), BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public);
return(members.Length > 0);
}
IEnumerator enu = ((IEnumerable)v2).GetEnumerator();
while (!result && enu.MoveNext())
{
if (v1.Equals(enu.Current))
{
return(true);
}
}
}
else if (v2 is IEnumerator)
{
if (v1 == null)
{
return(false);
}
IEnumerator enu = (IEnumerator)v2;
while (!result && enu.MoveNext())
{
if (v1.Equals(enu.Current))
{
return(true);
}
}
}
throw new JScriptException(JSError.ObjectExpected);
}
public static object valueOf(object thisObj)
{
if (!Convert.IsNumber(thisObj))
{
throw new JScriptException(JSError.NumberExpected);
}
else
{
return(Convert.ToNumber(thisObj));
}
}
public new NumberObject CreateInstance(params Object [] args)
{
double value = 0;
if (args.Length > 0)
{
value = Convert.ToNumber(args [0]);
}
return(new NumberObject(value));
}
public static string toLocaleString(object thisObj)
{
if (!Convert.IsNumber(thisObj))
{
throw new JScriptException(JSError.NumberExpected);
}
else
{
return(Convert.ToNumber(thisObj).ToString("N"));
}
}
internal override Object Call(Object[] args, Object thisob)
{
if (args.Length == 0)
{
return(0);
}
else
{
return(Convert.ToNumber(args[0]));
}
}
public new NumberObject CreateInstance(params Object[] args)
{
if (args.Length == 0)
{
return(new NumberObject(this.originalPrototype, 0.0, false));
}
else
{
return(new NumberObject(this.originalPrototype, Convert.ToNumber(args[0]), false));
}
}
// Perform a call on this object.
internal override Object Call
(VsaEngine engine, Object thisob, Object[] args)
{
if (args.Length == 0)
{
return(Double.NaN);
}
else
{
return(Convert.ToNumber(args[0]));
}
}
public static double UTC(Object year, Object month, Object date,
Object hours, Object minutes, Object seconds, Object ms)
{
double _year = 0, _month = 0, _date = 1, _hours = 0, _minutes = 0, _seconds = 0, _ms = 0;
if (year == null && month == null)
{
DateTime now = DateTime.Now;
_year = now.Year;
_month = now.Month - 1;
_date = now.Day;
_hours = now.Hour;
_minutes = now.Minute;
_seconds = now.Second;
_ms = now.Millisecond;
_ms -= TimeZone.CurrentTimeZone.GetUtcOffset(now).TotalMilliseconds;
goto done;
}
_year = Convert.ToNumber(year);
if (month != null)
{
_month = Convert.ToNumber(month);
}
if (date != null)
{
_date = Convert.ToNumber(date);
}
if (hours != null)
{
_hours = Convert.ToNumber(hours);
}
if (minutes != null)
{
_minutes = Convert.ToNumber(minutes);
}
if (seconds != null)
{
_seconds = Convert.ToNumber(seconds);
}
if (ms != null)
{
_ms = Convert.ToNumber(ms);
}
if (!Double.IsNaN(_year) && _year >= 0 && _year <= 99)
{
_year += 1900;
}
done:
return(TimeClip(msec_from_date(_year, _month, _date, _hours, _minutes, _seconds, _ms)));
}
// Evaluate a plus operator on two values.
public static Object DoOp(Object v1, Object v2)
{
v1 = Convert.ToPrimitive(v1, DefaultValueHint.None);
v2 = Convert.ToPrimitive(v2, DefaultValueHint.None);
if (v1 is String || v2 is String)
{
return(((String)v1) + ((String)v2));
}
else
{
return(Convert.ToNumber(v1) + Convert.ToNumber(v2));
}
}
// Compare two values.
public static double JScriptCompare(Object v1, Object v2)
{
v1 = Convert.ToPrimitive(v1, DefaultValueHint.None);
v2 = Convert.ToPrimitive(v2, DefaultValueHint.None);
if (v1 is String && v2 is String)
{
return(String.CompareOrdinal((String)v1, (String)v2));
}
else
{
return(Convert.ToNumber(v1) - Convert.ToNumber(v2));
}
}
internal static uint ToUint32(object value)
{
double val = Convert.ToNumber(value);
if (Double.IsInfinity(val) || double.IsNaN(val))
{
return(0);
}
else
{
return((uint)(val % 4294967296));
}
}
public object EvaluatePlus(object v1, object v2)
{
object val1 = Convert.ToPrimitive(v1, null);
object val2 = Convert.ToPrimitive(v2, null);
if (Convert.IsString(val1) || Convert.IsString(val2))
{
return(Convert.ToString(val1) + Convert.ToString(val2));
}
else
{
return(Convert.ToNumber(val1) + Convert.ToNumber(val2));
}
}
public object EvaluatePostOrPrefix(ref object v)
{
double value = Convert.ToNumber(v);
v = value;
int oper = (int)this.oper;
if (oper % 2 == 1) /* prefix? */
{
return(value + 1);
}
else
{
return(value - 1);
}
}
public static double setHours(object thisObj, double dhour, object min,
object sec, object msec)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject date = (DateObject)thisObj;
double t = DateConstructor.LocalTime(date.ms);
double new_min;
if (min == null)
{
new_min = DateConstructor.MinFromTime(t);
}
else
{
new_min = Convert.ToNumber(min);
}
double new_sec;
if (sec == null)
{
new_sec = DateConstructor.SecFromTime(t);
}
else
{
new_sec = Convert.ToNumber(sec);
}
double new_ms;
if (msec == null)
{
new_ms = DateConstructor.msFromTime(t);
}
else
{
new_ms = Convert.ToNumber(msec);
}
double time = DateConstructor.MakeTime(dhour, new_min, new_sec, new_ms);
double day = Math.Floor(t / DateConstructor.MS_PER_DAY);
double new_val = DateConstructor.ToUTC(DateConstructor.MakeDate(day, time));
date.ms = DateConstructor.TimeClip(new_val);
return(date.ms);
}
public double Invoke(object arg)
{
if (arg is Object [])
{
Object [] args = (Object [])arg;
if (args.Length == 0)
{
return(0);
}
else
{
return(Convert.ToNumber(args [0]));
}
}
return(Convert.ToNumber(arg));
}
public static string toFixed(object thisObj, double fractionDigits)
{
if (!Convert.IsNumber(thisObj))
{
throw new JScriptException(JSError.NumberExpected);
}
double value = Convert.ToNumber(thisObj);
int prec = Convert.ToInt32(fractionDigits);
if (prec < 0 || prec > 21)
{
throw new JScriptException(JSError.PrecisionOutOfRange);
}
return(value.ToString("F" + prec, CultureInfo.InvariantCulture));
}
public new DateObject CreateInstance(params Object[] args)
{
if (args.Length == 0)
{
return(new DateObject(this.originalPrototype, DateTime.Now.ToUniversalTime().Ticks / DatePrototype.ticksPerMillisecond - DatePrototype.msTo1970));
}
if (args.Length == 1)
{
Object arg0 = args[0];
IConvertible ic = Convert.GetIConvertible(arg0);
TypeCode tcode = Convert.GetTypeCode(arg0, ic);
if (tcode == TypeCode.DateTime)
{
return(new DateObject(this.originalPrototype, ic.ToDateTime(null).ToUniversalTime().Ticks / DatePrototype.ticksPerMillisecond - DatePrototype.msTo1970));
}
Object yv = Convert.ToPrimitive(arg0, PreferredType.Either, ref ic);
if (Convert.GetTypeCode(yv, ic) == TypeCode.String)
{
return(new DateObject(this.originalPrototype, parse(ic.ToString(null))));
}
double d = Convert.ToNumber(yv, ic);
if (DatePrototype.minDate <= d && d <= DatePrototype.maxDate)
{
return(new DateObject(this.originalPrototype, d));
}
return(new DateObject(this.originalPrototype, Double.NaN));
}
double dyear = Convert.ToNumber(args[0]);
double dmonth = Convert.ToNumber(args[1]);
double ddate = (args.Length > 2) ? Convert.ToNumber(args[2]) : 1;
double dhours = (args.Length > 3) ? Convert.ToNumber(args[3]) : 0;
double dminutes = (args.Length > 4) ? Convert.ToNumber(args[4]) : 0;
double dseconds = (args.Length > 5) ? Convert.ToNumber(args[5]) : 0;
double dms = (args.Length > 6) ? Convert.ToNumber(args[6]) : 0;
int y = (int)dyear;
if (!Double.IsNaN(dyear) && 0 <= y && y <= 99)
{
dyear = y + 1900;
}
double day = DatePrototype.MakeDay(dyear, dmonth, ddate);
double time = DatePrototype.MakeTime(dhours, dminutes, dseconds, dms);
return(new DateObject(this.originalPrototype, DatePrototype.TimeClip(DatePrototype.UTC(DatePrototype.MakeDate(day, time)))));
}
// Put a property to this object.
internal override void Put(String name, Object value)
{
if (name == "length")
{
length = value;
}
else if (CanPut(name))
{
double num = Convert.ToNumber(name);
uint inum = Convert.ToUInt32(name);
if (num != (double)inum)
{
// Force an array index exception.
inum = (uint)(array.Length);
}
array.SetValue(value, (int)inum);
}
}
public static double JScriptCompare(object v1, object v2)
{
object p1 = Convert.ToPrimitive(v1, null);
object p2 = Convert.ToPrimitive(v2, null);
if (Convert.IsString(p1) && Convert.IsString(p2))
{
string s1 = Convert.ToString(p1);
string s2 = Convert.ToString(p2);
return(s1.CompareTo(s2));
}
else
{
double n1 = Convert.ToNumber(p1);
double n2 = Convert.ToNumber(p2);
return(n1 - n2);
}
}
