| private ToPrimitive ( Object value, PreferredType preferredType ) : Object | ||
| value | Object | |
| preferredType | PreferredType | |
| return | Object | |
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));
}
// 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));
}
}
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 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)))));
}
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);
}
}
public static Object DoOp(Object v1, Object v2)
{
IConvertible ic1 = Convert.GetIConvertible(v1);
IConvertible ic2 = Convert.GetIConvertible(v2);
v1 = Convert.ToPrimitive(v1, PreferredType.Either, ref ic1);
v2 = Convert.ToPrimitive(v2, PreferredType.Either, ref ic2);
TypeCode t1 = Convert.GetTypeCode(v1, ic1);
TypeCode t2 = Convert.GetTypeCode(v2, ic2);
if (t1 == TypeCode.String)
{
if (v1 is ConcatString)
{
return(new ConcatString((ConcatString)v1, Convert.ToString(v2, ic2)));
}
else
{
return(new ConcatString(ic1.ToString(null), Convert.ToString(v2, ic2)));
}
}
else if (t2 == TypeCode.String)
{
return(Convert.ToString(v1, ic1) + ic2.ToString(null));
}
else if (t1 == TypeCode.Char && t2 == TypeCode.Char)
{
return(ic1.ToString(null) + ic2.ToString(null));
}
else if ((t1 == TypeCode.Char && (Convert.IsPrimitiveNumericTypeCode(t2) || t2 == TypeCode.Boolean)) ||
(t2 == TypeCode.Char && (Convert.IsPrimitiveNumericTypeCode(t1) || t1 == TypeCode.Boolean)))
{
return((char)(int)Runtime.DoubleToInt64(Convert.ToNumber(v1, ic1) + Convert.ToNumber(v2, ic2)));
}
else
{
return(Convert.ToNumber(v1, ic1) + Convert.ToNumber(v2, ic2));
}
}
private static double JScriptCompare2(Object v1, Object v2, IConvertible ic1, IConvertible ic2, TypeCode t1, TypeCode t2)
{
if (t1 == TypeCode.Object)
{
v1 = Convert.ToPrimitive(v1, PreferredType.Number, ref ic1);
t1 = Convert.GetTypeCode(v1, ic1);
}
if (t2 == TypeCode.Object)
{
v2 = Convert.ToPrimitive(v2, PreferredType.Number, ref ic2);
t2 = Convert.GetTypeCode(v2, ic2);
}
switch (t1)
{
case TypeCode.Char:
if (t2 == TypeCode.String)
{
return(String.CompareOrdinal(Convert.ToString(v1, ic1), ic2.ToString(null)));
}
goto case TypeCode.UInt16;
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
long l = ic1.ToInt64(null);
switch (t2)
{
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
return(l - ic2.ToInt64(null));
case TypeCode.UInt64:
if (l < 0)
{
return(-1);
}
ulong ul2 = ic2.ToUInt64(null);
if (((ulong)l) < ul2)
{
return(-1);
}
if (((ulong)l) == ul2)
{
return(0);
}
return(1);
case TypeCode.Single:
case TypeCode.Double:
return(((double)l) - ic2.ToDouble(null));
case TypeCode.Decimal:
return((double)(new Decimal(l) - ic2.ToDecimal(null)));
default:
Object bd2 = Convert.ToNumber(v2, ic2);
return(JScriptCompare2(v1, bd2, ic1, Convert.GetIConvertible(bd2), t1, TypeCode.Double));
}
case TypeCode.UInt64:
ulong ul = ic1.ToUInt64(null);
switch (t2)
{
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
long l2 = ic2.ToInt64(null);
if (l2 < 0)
{
return(1);
}
if (ul == (ulong)l2)
{
return(0);
}
return(-1);
case TypeCode.UInt64:
ulong ul2 = ic2.ToUInt64(null);
if (ul < ul2)
{
return(-1);
}
if (ul == ul2)
{
return(0);
}
return(1);
case TypeCode.Single:
case TypeCode.Double:
return(((double)ul) - ic2.ToDouble(null));
case TypeCode.Decimal:
return((double)(new Decimal(ul) - ic2.ToDecimal(null)));
default:
Object bd2 = Convert.ToNumber(v2, ic2);
return(JScriptCompare2(v1, bd2, ic1, Convert.GetIConvertible(bd2), t1, TypeCode.Double));
}
case TypeCode.Decimal:
Decimal dec1 = ic1.ToDecimal(null);
switch (t2)
{
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
return((double)(dec1 - new Decimal(ic2.ToInt64(null))));
case TypeCode.UInt64:
return((double)(dec1 - new Decimal(ic2.ToUInt64(null))));
case TypeCode.Single:
case TypeCode.Double:
return((double)(dec1 - new Decimal(ic2.ToDouble(null))));
case TypeCode.Decimal:
return((double)(dec1 - ic2.ToDecimal(null)));
default:
return((double)(dec1 - new Decimal(Convert.ToNumber(v2, ic2))));
}
case TypeCode.String:
switch (t2)
{
case TypeCode.String: return(String.CompareOrdinal(ic1.ToString(null), ic2.ToString(null)));
case TypeCode.Char: return(String.CompareOrdinal(ic1.ToString(null), Convert.ToString(v2, ic2)));
}
goto default;
default:
double d1 = Convert.ToNumber(v1, ic1);
double d2 = Convert.ToNumber(v2, ic2);
if (d1 == d2)
{
return(0); //d1 and d2 could be infinities
}
return(d1 - d2);
}
}
public new DateObject CreateInstance(params object [] args)
{
int argc = args.Length;
double year = 0, month = 0, date = 1, hours = 0, minutes = 0, seconds = 0, ms = 0;
double result;
if (argc == 0)
{
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;
goto done;
}
else if (argc == 1)
{
object value = Convert.ToPrimitive(args [0], null);
if (value.GetType() == typeof(string))
{
result = parse((string)value);
}
else
{
result = Convert.ToNumber(value);
if (Double.IsNaN(result) || Double.IsInfinity(result))
{
result = Double.NaN;
}
else
{
result = Math.Round(result);
}
}
return(new DateObject(result));
}
year = Convert.ToNumber(args [0]);
--argc;
month = Convert.ToNumber(args [1]);
if (--argc == 0)
{
goto done;
}
date = Convert.ToNumber(args [2]);
if (--argc == 0)
{
goto done;
}
hours = Convert.ToNumber(args [3]);
if (--argc == 0)
{
goto done;
}
minutes = Convert.ToNumber(args [4]);
if (--argc == 0)
{
goto done;
}
seconds = Convert.ToNumber(args [5]);
if (--argc == 0)
{
goto done;
}
ms = Convert.ToNumber(args [6]);
done:
if (!Double.IsNaN(year) && year >= 0 && year <= 99)
{
year += 1900;
}
double utc_off = 0;
try {
DateTime dt = new DateTime((int)year, (int)month + 1, (int)date,
(int)hours, (int)minutes, (int)seconds);
utc_off = TimeZone.CurrentTimeZone.GetUtcOffset(dt).TotalMilliseconds;
} catch (ArgumentOutOfRangeException) { /* OK */ }
result = msec_from_date(year, month, date, hours, minutes, seconds, ms - utc_off);
return(new DateObject(result));
}
public bool EvaluateEquality(object v1, object v2)
{
IConvertible ic1 = v1 as IConvertible;
IConvertible ic2 = v2 as IConvertible;
TypeCode tc1 = Convert.GetTypeCode(v1, ic1);
TypeCode tc2 = Convert.GetTypeCode(v2, ic2);
bool both_numbers = Convert.IsNumberTypeCode(tc1) && Convert.IsNumberTypeCode(tc2);
if ((tc1 == tc2) || both_numbers)
{
switch (tc1)
{
case TypeCode.DBNull:
case TypeCode.Empty:
return(true);
case TypeCode.Boolean:
return(ic1.ToBoolean(null) == ic2.ToBoolean(null));
case TypeCode.String:
return(ic1.ToString(null) == ic2.ToString(null));
case TypeCode.Object:
if (v1 is ScriptFunction && v2 is ScriptFunction)
{
return(v1 == v2 || v1.Equals(v2));
}
else
{
return(v1 == v2);
}
default:
if (both_numbers)
{
double num1;
if (Convert.IsFloatTypeCode(tc1))
{
num1 = ic1.ToDouble(null);
}
else
{
num1 = (double)ic1.ToInt64(null);
}
double num2;
if (Convert.IsFloatTypeCode(tc2))
{
num2 = ic2.ToDouble(null);
}
else
{
num2 = (double)ic2.ToInt64(null);
}
return(num1 == num2);
}
else
{
return(false);
}
}
}
else
{
bool swapped = false;
redo:
switch (tc1)
{
case TypeCode.DBNull:
if (tc2 == TypeCode.Empty)
{
return(true);
}
break;
case TypeCode.String:
if (Convert.IsNumberTypeCode(tc2))
{
return(EvaluateEquality(Convert.ToNumber(v1), v2));
}
break;
case TypeCode.Boolean:
return(EvaluateEquality(Convert.ToNumber(v1), v2));
case TypeCode.Object:
if (tc2 == TypeCode.String || Convert.IsNumberTypeCode(tc2))
{
return(EvaluateEquality(Convert.ToPrimitive(v1, null), v2));
}
break;
}
if (!swapped)
{
swapped = true;
object vt = v1;
v1 = v2;
v2 = vt;
ic1 = v1 as IConvertible;
ic2 = v2 as IConvertible;
tc1 = Convert.GetTypeCode(v1, ic1);
tc2 = Convert.GetTypeCode(v2, ic2);
goto redo;
}
else
{
return(false);
}
}
}
private static bool JScriptEquals(Object v1, Object v2, IConvertible ic1, IConvertible ic2, TypeCode t1, TypeCode t2, bool checkForDebuggerObjects)
{
if (StrictEquality.JScriptStrictEquals(v1, v2, ic1, ic2, t1, t2, checkForDebuggerObjects))
{
return(true);
}
if (t2 == TypeCode.Boolean)
{
v2 = ic2.ToBoolean(null) ? 1 : 0;
ic2 = Convert.GetIConvertible(v2);
return(Equality.JScriptEquals(v1, v2, ic1, ic2, t1, TypeCode.Int32, false));
}
switch (t1)
{
case TypeCode.Empty: return(t2 == TypeCode.Empty || t2 == TypeCode.DBNull || (t2 == TypeCode.Object && v2 is Missing));
case TypeCode.Object:
switch (t2)
{
case TypeCode.Empty:
case TypeCode.DBNull:
return(v1 is Missing);
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:
case TypeCode.String:
IConvertible pvic1 = ic1;
Object pv1 = Convert.ToPrimitive(v1, PreferredType.Either, ref pvic1);
if (pvic1 != null && pv1 != v1)
{
return(Equality.JScriptEquals(pv1, v2, pvic1, ic2, pvic1.GetTypeCode(), t2, false));
}
else
{
return(false);
}
}
return(false);
case TypeCode.DBNull: return(t2 == TypeCode.DBNull || t2 == TypeCode.Empty || (t2 == TypeCode.Object && v2 is Missing));
case TypeCode.Boolean:
v1 = ic1.ToBoolean(null) ? 1 : 0;
ic1 = Convert.GetIConvertible(v1);
return(Equality.JScriptEquals(v1, v2, ic1, ic2, TypeCode.Int32, t2, false));
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:
if (t2 == TypeCode.Object)
{
IConvertible pvic2 = ic2;
Object pv2 = Convert.ToPrimitive(v2, PreferredType.Either, ref pvic2);
if (pvic2 != null && pv2 != v2)
{
return(Equality.JScriptEquals(v1, pv2, ic1, pvic2, t1, pvic2.GetTypeCode(), false));
}
else
{
return(false);
}
}
if (t2 == TypeCode.String)
{
if (v1 is Enum)
{
return(Convert.ToString(v1).Equals(ic2.ToString(null)));
}
v2 = Convert.ToNumber(v2, ic2);
ic2 = Convert.GetIConvertible(v2);
return(StrictEquality.JScriptStrictEquals(v1, v2, ic1, ic2, t1, TypeCode.Double, false));
}
return(false);
case TypeCode.DateTime:
if (t2 == TypeCode.Object)
{
IConvertible pvic2 = ic2;
Object pv2 = Convert.ToPrimitive(v2, PreferredType.Either, ref pvic2);
if (pv2 != null && pv2 != v2)
{
return(StrictEquality.JScriptStrictEquals(v1, pv2, ic1, pvic2, t1, pvic2.GetTypeCode(), false));
}
}
return(false);
case TypeCode.String:
switch (t2)
{
case TypeCode.Object: {
IConvertible pvic2 = ic2;
Object pv2 = Convert.ToPrimitive(v2, PreferredType.Either, ref pvic2);
if (pvic2 != null && pv2 != v2)
{
return(Equality.JScriptEquals(v1, pv2, ic1, pvic2, t1, pvic2.GetTypeCode(), false));
}
else
{
return(false);
}
}
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:
if (v2 is Enum)
{
return(Convert.ToString(v2).Equals(ic1.ToString(null)));
}
v1 = Convert.ToNumber(v1, ic1);
ic1 = Convert.GetIConvertible(v1);
return(StrictEquality.JScriptStrictEquals(v1, v2, ic1, ic2, TypeCode.Double, t2, false));
}
return(false);
}
return(false);
}
