| public static Coerce2 ( Object value, TypeCode target, bool truncationPermitted ) : Object | ||
| value | Object | |
| target | TypeCode | |
| truncationPermitted | bool | |
| Результат | 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));
}
private Object EvaluateNumericBinary(Object v1, Object v2, JSToken operatorTok)
{
IConvertible ic1 = Convert.GetIConvertible(v1);
IConvertible ic2 = Convert.GetIConvertible(v2);
TypeCode t1 = Convert.GetTypeCode(v1, ic1);
TypeCode t2 = Convert.GetTypeCode(v2, ic2);
switch (t1)
{
case TypeCode.Empty:
return(Double.NaN);
case TypeCode.DBNull:
return(this.EvaluateNumericBinary(0, v2, operatorTok));
case TypeCode.Char: {
Object result;
int val = ic1.ToInt32(null);
switch (t2)
{
case TypeCode.Empty:
return(Double.NaN);
case TypeCode.DBNull:
return(NumericBinary.DoOp(val, 0, operatorTok));
case TypeCode.Boolean:
case TypeCode.Char:
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
result = NumericBinary.DoOp(val, ic2.ToInt32(null), operatorTok);
break;
case TypeCode.UInt32:
case TypeCode.Int64:
result = NumericBinary.DoOp((long)val, ic2.ToInt64(null), operatorTok);
break;
case TypeCode.UInt64:
result = NumericBinary.DoOp((double)val, ic2.ToDouble(null), operatorTok);
break;
case TypeCode.Single:
case TypeCode.Double:
result = NumericBinary.DoOp((double)ic1.ToInt32(null), ic2.ToDouble(null), operatorTok);
break;
case TypeCode.String:
result = NumericBinary.DoOp(val, Convert.ToNumber(v2, ic2), operatorTok);
break;
case TypeCode.Object:
case TypeCode.Decimal:
case TypeCode.DateTime:
default:
result = null;
break;
}
if (this.operatorTok == JSToken.Minus && result != null && t2 != TypeCode.Char)
{
return(Convert.Coerce2(result, TypeCode.Char, false));
}
else if (result != null)
{
return(result);
}
break;
}
case TypeCode.Boolean:
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
{ int val = ic1.ToInt32(null);
switch (t2)
{
case TypeCode.Empty:
return(Double.NaN);
case TypeCode.DBNull:
return(NumericBinary.DoOp(val, 0, operatorTok));
case TypeCode.Boolean:
case TypeCode.Char:
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
return(NumericBinary.DoOp(val, ic2.ToInt32(null), operatorTok));
case TypeCode.UInt32:
case TypeCode.Int64:
return(NumericBinary.DoOp((long)val, ic2.ToInt64(null), operatorTok));
case TypeCode.UInt64:
if (val >= 0)
{
return(NumericBinary.DoOp((ulong)val, ic2.ToUInt64(null), operatorTok));
}
else
{
return(NumericBinary.DoOp((double)val, ic2.ToDouble(null), operatorTok));
}
case TypeCode.Single:
case TypeCode.Double:
return(NumericBinary.DoOp((double)val, ic2.ToDouble(null), operatorTok));
case TypeCode.Object:
case TypeCode.Decimal:
case TypeCode.DateTime:
case TypeCode.String:
break;
}
break; }
case TypeCode.UInt32:
{ uint val = ic1.ToUInt32(null);
switch (t2)
{
case TypeCode.Empty:
return(Double.NaN);
case TypeCode.DBNull:
return(NumericBinary.DoOp(val, 0, operatorTok));
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.Int32:
int val2 = ic2.ToInt32(null);
if (val2 >= 0)
{
return(NumericBinary.DoOp(val, (uint)val2, operatorTok));
}
else
{
return(NumericBinary.DoOp((long)val, (long)val2, operatorTok));
}
case TypeCode.Int64:
return(NumericBinary.DoOp((long)val, ic2.ToInt64(null), operatorTok));
case TypeCode.Boolean:
case TypeCode.Char:
case TypeCode.UInt16:
case TypeCode.UInt32:
return(NumericBinary.DoOp(val, ic2.ToUInt32(null), operatorTok));
case TypeCode.UInt64:
return(NumericBinary.DoOp((ulong)val, ic2.ToUInt64(null), operatorTok));
case TypeCode.Single:
case TypeCode.Double:
return(NumericBinary.DoOp((double)val, ic2.ToDouble(null), operatorTok));
case TypeCode.Object:
case TypeCode.Decimal:
case TypeCode.DateTime:
case TypeCode.String:
break;
}
break; }
case TypeCode.Int64:
{ long val = ic1.ToInt64(null);
switch (t2)
{
case TypeCode.Empty:
return(Double.NaN);
case TypeCode.DBNull:
return(NumericBinary.DoOp(val, 0, operatorTok));
case TypeCode.Boolean:
case TypeCode.Char:
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
return(NumericBinary.DoOp(val, ic2.ToInt64(null), operatorTok));
case TypeCode.UInt64:
if (val >= 0)
{
return(NumericBinary.DoOp((ulong)val, ic2.ToUInt64(null), operatorTok));
}
else
{
return(NumericBinary.DoOp((double)val, ic2.ToDouble(null), operatorTok));
}
case TypeCode.Single:
case TypeCode.Double:
return(NumericBinary.DoOp((double)val, ic2.ToDouble(null), operatorTok));
case TypeCode.Object:
case TypeCode.Decimal:
case TypeCode.DateTime:
case TypeCode.String:
break;
}
break; }
case TypeCode.UInt64:
{ ulong val = ic1.ToUInt64(null);
switch (t2)
{
case TypeCode.Empty:
return(Double.NaN);
case TypeCode.DBNull:
return(NumericBinary.DoOp(val, 0, operatorTok));
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
long val2 = ic2.ToInt64(null);
if (val2 >= 0)
{
return(NumericBinary.DoOp(val, (ulong)val2, operatorTok));
}
else
{
return(NumericBinary.DoOp((double)val, (double)val2, operatorTok));
}
case TypeCode.Boolean:
case TypeCode.Char:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
return(NumericBinary.DoOp(val, ic2.ToUInt64(null), operatorTok));
case TypeCode.Single:
case TypeCode.Double:
return(NumericBinary.DoOp((double)val, ic2.ToDouble(null), operatorTok));
case TypeCode.Object:
case TypeCode.Decimal:
case TypeCode.DateTime:
case TypeCode.String:
break;
}
break; }
case TypeCode.Single:
case TypeCode.Double:
{ double d = ic1.ToDouble(null);
switch (t2)
{
case TypeCode.Empty:
return(Double.NaN);
case TypeCode.DBNull:
return(NumericBinary.DoOp(d, 0, operatorTok));
case TypeCode.Boolean:
case TypeCode.Char:
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
return(NumericBinary.DoOp(d, (double)ic2.ToInt32(null), operatorTok));
case TypeCode.UInt32:
case TypeCode.Int64:
case TypeCode.UInt64:
case TypeCode.Single:
case TypeCode.Double:
return(NumericBinary.DoOp(d, ic2.ToDouble(null), operatorTok));
case TypeCode.Object:
case TypeCode.Decimal:
case TypeCode.DateTime:
case TypeCode.String:
break;
}
break; }
case TypeCode.Object:
case TypeCode.Decimal:
case TypeCode.DateTime:
case TypeCode.String:
break;
}
if (v2 == null)
{
return(Double.NaN);
}
MethodInfo oper = this.GetOperator(v1.GetType(), v2.GetType());
if (oper != null)
{
return(oper.Invoke(null, (BindingFlags)0, JSBinder.ob, new Object[] { v1, v2 }, null));
}
else
{
return(NumericBinary.DoOp(v1, v2, ic1, ic2, operatorTok));
}
}