internal object Evaluate(DataRow row, DataRowVersion version)
{
if (!this.bound)
{
this.Bind(this.table);
}
if (this.expr != null)
{
object obj2 = this.expr.Eval(row, version);
if ((obj2 == DBNull.Value) && (StorageType.Uri >= this._storageType))
{
return(obj2);
}
try
{
if (StorageType.Object != this._storageType)
{
obj2 = SqlConvert.ChangeType2(obj2, this._storageType, this._dataType, this.table.FormatProvider);
}
return(obj2);
}
catch (Exception exception)
{
if (!ADP.IsCatchableExceptionType(exception))
{
throw;
}
ExceptionBuilder.TraceExceptionForCapture(exception);
throw ExprException.DatavalueConvertion(obj2, this._dataType, exception);
}
}
return(null);
}
internal object Evaluate(DataRow row, DataRowVersion version)
{
object result;
if (!_bound)
{
Bind(_table);
}
if (_expr != null)
{
result = _expr.Eval(row, version);
// if the type is a SqlType (StorageType.Uri < _storageType), convert DBNull values.
if (result != DBNull.Value || StorageType.Uri < _storageType)
{
// we need to convert the return value to the column.Type;
try
{
if (StorageType.Object != _storageType)
{
result = SqlConvert.ChangeType2(result, _storageType, _dataType, _table.FormatProvider);
}
}
catch (Exception e) when(ADP.IsCatchableExceptionType(e))
{
ExceptionBuilder.TraceExceptionForCapture(e);
throw ExprException.DatavalueConvertion(result, _dataType, e);
}
}
}
else
{
result = null;
}
return(result);
}
internal override void SetCurrentAndIncrement(object value)
{
long num = (long)SqlConvert.ChangeType2(value, StorageType.Int64, typeof(long), CultureInfo.InvariantCulture);
if (this.BoundaryCheck(num))
{
this.current = num + this.step;
}
}
private object EvalFunction(FunctionId id, object[] argumentValues, DataRow row, DataRowVersion version)
{
StorageType storageType;
switch (id)
{
case FunctionId.Abs:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
storageType = DataStorage.GetStorageType(argumentValues[0].GetType());
if (ExpressionNode.IsInteger(storageType))
{
return(Math.Abs((long)argumentValues[0]));
}
if (ExpressionNode.IsNumeric(storageType))
{
return(Math.Abs((double)argumentValues[0]));
}
throw ExprException.ArgumentTypeInteger(s_funcs[_info]._name, 1);
case FunctionId.cBool:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
storageType = DataStorage.GetStorageType(argumentValues[0].GetType());
switch (storageType)
{
case StorageType.Boolean:
return((bool)argumentValues[0]);
case StorageType.Int32:
return((int)argumentValues[0] != 0);
case StorageType.Double:
return((double)argumentValues[0] != 0.0);
case StorageType.String:
return(bool.Parse((string)argumentValues[0]));
default:
throw ExprException.DatatypeConvertion(argumentValues[0].GetType(), typeof(bool));
}
case FunctionId.cInt:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToInt32(argumentValues[0], FormatProvider));
case FunctionId.cDate:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToDateTime(argumentValues[0], FormatProvider));
case FunctionId.cDbl:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToDouble(argumentValues[0], FormatProvider));
case FunctionId.cStr:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToString(argumentValues[0], FormatProvider));
case FunctionId.Charindex:
Debug.Assert(_argumentCount == 2, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
Debug.Assert(argumentValues[0] is string, "Invalid argument type for " + s_funcs[_info]._name);
Debug.Assert(argumentValues[1] is string, "Invalid argument type for " + s_funcs[_info]._name);
if (DataStorage.IsObjectNull(argumentValues[0]) || DataStorage.IsObjectNull(argumentValues[1]))
{
return(DBNull.Value);
}
if (argumentValues[0] is SqlString)
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
if (argumentValues[1] is SqlString)
{
argumentValues[1] = ((SqlString)argumentValues[1]).Value;
}
return(((string)argumentValues[1]).IndexOf((string)argumentValues[0], StringComparison.Ordinal));
case FunctionId.Iif:
Debug.Assert(_argumentCount == 3, "Invalid argument argumentCount: " + _argumentCount.ToString(FormatProvider));
object first = _arguments[0].Eval(row, version);
if (DataExpression.ToBoolean(first) != false)
{
return(_arguments[1].Eval(row, version));
}
else
{
return(_arguments[2].Eval(row, version));
}
case FunctionId.In:
// we never evaluate IN directly: IN as a binary operator, so evaluation of this should be in
// BinaryNode class
throw ExprException.NYI(s_funcs[_info]._name);
case FunctionId.IsNull:
Debug.Assert(_argumentCount == 2, "Invalid argument argumentCount: ");
if (DataStorage.IsObjectNull(argumentValues[0]))
{
return(argumentValues[1]);
}
else
{
return(argumentValues[0]);
}
case FunctionId.Len:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
Debug.Assert((argumentValues[0] is string) || (argumentValues[0] is SqlString), "Invalid argument type for " + s_funcs[_info]._name);
if (argumentValues[0] is SqlString)
{
if (((SqlString)argumentValues[0]).IsNull)
{
return(DBNull.Value);
}
else
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
}
return(((string)argumentValues[0]).Length);
case FunctionId.Substring:
Debug.Assert(_argumentCount == 3, "Invalid argument argumentCount: " + _argumentCount.ToString(FormatProvider));
Debug.Assert((argumentValues[0] is string) || (argumentValues[0] is SqlString), "Invalid first argument " + argumentValues[0].GetType().FullName + " in " + s_funcs[_info]._name);
Debug.Assert(argumentValues[1] is int, "Invalid second argument " + argumentValues[1].GetType().FullName + " in " + s_funcs[_info]._name);
Debug.Assert(argumentValues[2] is int, "Invalid third argument " + argumentValues[2].GetType().FullName + " in " + s_funcs[_info]._name);
// work around the differences in .NET and VBA implementation of the Substring function
// 1. The <index> Argument is 0-based in .NET, and 1-based in VBA
// 2. If the <Length> argument is longer then the string length .NET throws an ArgumentException
// but our users still want to get a result.
int start = (int)argumentValues[1] - 1;
int length = (int)argumentValues[2];
if (start < 0)
{
throw ExprException.FunctionArgumentOutOfRange("index", "Substring");
}
if (length < 0)
{
throw ExprException.FunctionArgumentOutOfRange("length", "Substring");
}
if (length == 0)
{
return(string.Empty);
}
if (argumentValues[0] is SqlString)
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
int src_length = ((string)argumentValues[0]).Length;
if (start > src_length)
{
return(DBNull.Value);
}
if (start + length > src_length)
{
length = src_length - start;
}
return(((string)argumentValues[0]).Substring(start, length));
case FunctionId.Trim:
{
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
Debug.Assert((argumentValues[0] is string) || (argumentValues[0] is SqlString), "Invalid argument type for " + s_funcs[_info]._name);
if (DataStorage.IsObjectNull(argumentValues[0]))
{
return(DBNull.Value);
}
if (argumentValues[0] is SqlString)
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
return(((string)argumentValues[0]).Trim());
}
case FunctionId.Convert:
if (_argumentCount != 2)
{
throw ExprException.FunctionArgumentCount(_name);
}
if (argumentValues[0] == DBNull.Value)
{
return(DBNull.Value);
}
Type type = (Type)argumentValues[1];
StorageType mytype = DataStorage.GetStorageType(type);
storageType = DataStorage.GetStorageType(argumentValues[0].GetType());
if (mytype == StorageType.DateTimeOffset)
{
if (storageType == StorageType.String)
{
return(SqlConvert.ConvertStringToDateTimeOffset((string)argumentValues[0], FormatProvider));
}
}
if (StorageType.Object != mytype)
{
if ((mytype == StorageType.Guid) && (storageType == StorageType.String))
{
return(new Guid((string)argumentValues[0]));
}
if (ExpressionNode.IsFloatSql(storageType) && ExpressionNode.IsIntegerSql(mytype))
{
if (StorageType.Single == storageType)
{
return(SqlConvert.ChangeType2((float)SqlConvert.ChangeType2(argumentValues[0], StorageType.Single, typeof(float), FormatProvider), mytype, type, FormatProvider));
}
else if (StorageType.Double == storageType)
{
return(SqlConvert.ChangeType2((double)SqlConvert.ChangeType2(argumentValues[0], StorageType.Double, typeof(double), FormatProvider), mytype, type, FormatProvider));
}
else if (StorageType.Decimal == storageType)
{
return(SqlConvert.ChangeType2((decimal)SqlConvert.ChangeType2(argumentValues[0], StorageType.Decimal, typeof(decimal), FormatProvider), mytype, type, FormatProvider));
}
}
// The Convert function can be called lazily, outside of a previous Serialization Guard scope.
// If there was a type limiter scope on the stack at the time this Convert function was created,
// we must manually re-enter the Serialization Guard scope.
DeserializationToken deserializationToken = (_capturedLimiter != null) ? SerializationInfo.StartDeserialization() : default;
using (deserializationToken)
{
return(SqlConvert.ChangeType2(argumentValues[0], mytype, type, FormatProvider));
}
}
return(argumentValues[0]);
case FunctionId.DateTimeOffset:
if (argumentValues[0] == DBNull.Value || argumentValues[1] == DBNull.Value || argumentValues[2] == DBNull.Value)
{
return(DBNull.Value);
}
switch (((DateTime)argumentValues[0]).Kind)
{
case DateTimeKind.Utc:
if ((int)argumentValues[1] != 0 && (int)argumentValues[2] != 0)
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
case DateTimeKind.Local:
if (DateTimeOffset.Now.Offset.Hours != (int)argumentValues[1] && DateTimeOffset.Now.Offset.Minutes != (int)argumentValues[2])
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
case DateTimeKind.Unspecified: break;
}
if ((int)argumentValues[1] < -14 || (int)argumentValues[1] > 14)
{
throw ExprException.InvalidHoursArgument();
}
if ((int)argumentValues[2] < -59 || (int)argumentValues[2] > 59)
{
throw ExprException.InvalidMinutesArgument();
}
// range should be within -14 hours and +14 hours
if ((int)argumentValues[1] == 14 && (int)argumentValues[2] > 0)
{
throw ExprException.InvalidTimeZoneRange();
}
if ((int)argumentValues[1] == -14 && (int)argumentValues[2] < 0)
{
throw ExprException.InvalidTimeZoneRange();
}
return(new DateTimeOffset((DateTime)argumentValues[0], new TimeSpan((int)argumentValues[1], (int)argumentValues[2], 0)));
default:
throw ExprException.UndefinedFunction(s_funcs[_info]._name);
}
}
private int Eval(BinaryNode expr, DataRow row, DataRowVersion version)
{
if (expr._op == Operators.And)
{
int lResult = Eval((BinaryNode)expr._left, row, version);
if (lResult != 0)
{
return(lResult);
}
int rResult = Eval((BinaryNode)expr._right, row, version);
if (rResult != 0)
{
return(rResult);
}
return(0);
}
long c = 0;
object vLeft = expr._left.Eval(row, version);
if (expr._op != Operators.Is && expr._op != Operators.IsNot)
{
object vRight = expr._right.Eval(row, version);
bool isLConst = (expr._left is ConstNode);
bool isRConst = (expr._right is ConstNode);
if ((vLeft == DBNull.Value) || (expr._left.IsSqlColumn && DataStorage.IsObjectSqlNull(vLeft)))
{
return(-1);
}
if ((vRight == DBNull.Value) || (expr._right.IsSqlColumn && DataStorage.IsObjectSqlNull(vRight)))
{
return(1);
}
StorageType leftType = DataStorage.GetStorageType(vLeft.GetType());
if (StorageType.Char == leftType)
{
if ((isRConst) || (!expr._right.IsSqlColumn))
{
vRight = Convert.ToChar(vRight, _table.FormatProvider);
}
else
{
vRight = SqlConvert.ChangeType2(vRight, StorageType.Char, typeof(char), _table.FormatProvider);
}
}
StorageType rightType = DataStorage.GetStorageType(vRight.GetType());
StorageType resultType;
if (expr._left.IsSqlColumn || expr._right.IsSqlColumn)
{
resultType = expr.ResultSqlType(leftType, rightType, isLConst, isRConst, expr._op);
}
else
{
resultType = expr.ResultType(leftType, rightType, isLConst, isRConst, expr._op);
}
if (StorageType.Empty == resultType)
{
expr.SetTypeMismatchError(expr._op, vLeft.GetType(), vRight.GetType());
}
// if comparing a Guid column value against a string literal
// use InvariantCulture instead of DataTable.Locale because in the Danish related cultures
// sorting a Guid as a string has different results than in Invariant and English related cultures.
// This fix is restricted to DataTable.Select("GuidColumn = 'string literal'") types of queries
NameNode namedNode = null;
System.Globalization.CompareInfo comparer =
((isLConst && !isRConst && (leftType == StorageType.String) && (rightType == StorageType.Guid) && (null != (namedNode = expr._right as NameNode)) && (namedNode._column.DataType == typeof(Guid))) ||
(isRConst && !isLConst && (rightType == StorageType.String) && (leftType == StorageType.Guid) && (null != (namedNode = expr._left as NameNode)) && (namedNode._column.DataType == typeof(Guid))))
? System.Globalization.CultureInfo.InvariantCulture.CompareInfo : null;
c = expr.BinaryCompare(vLeft, vRight, resultType, expr._op, comparer);
}
switch (expr._op)
{
case Operators.EqualTo: c = (c == 0 ? 0 : c < 0 ? -1 : 1); break;
case Operators.GreaterThen: c = (c > 0 ? 0 : -1); break;
case Operators.LessThen: c = (c < 0 ? 0 : 1); break;
case Operators.GreaterOrEqual: c = (c >= 0 ? 0 : -1); break;
case Operators.LessOrEqual: c = (c <= 0 ? 0 : 1); break;
case Operators.Is: c = (vLeft == DBNull.Value ? 0 : -1); break;
case Operators.IsNot: c = (vLeft != DBNull.Value ? 0 : 1); break;
default: Debug.Assert(true, "Unsupported Binary Search Operator!"); break;
}
return((int)c);
}
private int Eval(BinaryNode expr, DataRow row, DataRowVersion version)
{
if (expr.op == 0x1a)
{
int num4 = this.Eval((BinaryNode)expr.left, row, version);
if (num4 != 0)
{
return(num4);
}
int num3 = this.Eval((BinaryNode)expr.right, row, version);
if (num3 != 0)
{
return(num3);
}
return(0);
}
long num = 0L;
object obj3 = expr.left.Eval(row, version);
if ((expr.op != 13) && (expr.op != 0x27))
{
StorageType type;
object obj2 = expr.right.Eval(row, version);
bool lc = expr.left is ConstNode;
bool rc = expr.right is ConstNode;
if ((obj3 == DBNull.Value) || (expr.left.IsSqlColumn && DataStorage.IsObjectSqlNull(obj3)))
{
return(-1);
}
if ((obj2 == DBNull.Value) || (expr.right.IsSqlColumn && DataStorage.IsObjectSqlNull(obj2)))
{
return(1);
}
StorageType storageType = DataStorage.GetStorageType(obj3.GetType());
if (StorageType.Char == storageType)
{
if (rc || !expr.right.IsSqlColumn)
{
obj2 = Convert.ToChar(obj2, this.table.FormatProvider);
}
else
{
obj2 = SqlConvert.ChangeType2(obj2, StorageType.Char, typeof(char), this.table.FormatProvider);
}
}
StorageType right = DataStorage.GetStorageType(obj2.GetType());
if (expr.left.IsSqlColumn || expr.right.IsSqlColumn)
{
type = expr.ResultSqlType(storageType, right, lc, rc, expr.op);
}
else
{
type = expr.ResultType(storageType, right, lc, rc, expr.op);
}
if (type == StorageType.Empty)
{
expr.SetTypeMismatchError(expr.op, obj3.GetType(), obj2.GetType());
}
num = expr.BinaryCompare(obj3, obj2, type, expr.op);
}
switch (expr.op)
{
case 7:
num = (num == 0L) ? ((long)0) : ((num < 0L) ? ((long)(-1)) : ((long)1));
break;
case 8:
num = (num > 0L) ? ((long)0) : ((long)(-1));
break;
case 9:
num = (num < 0L) ? ((long)0) : ((long)1);
break;
case 10:
num = (num >= 0L) ? ((long)0) : ((long)(-1));
break;
case 11:
num = (num <= 0L) ? ((long)0) : ((long)1);
break;
case 13:
num = (obj3 == DBNull.Value) ? ((long)0) : ((long)(-1));
break;
case 0x27:
num = (obj3 != DBNull.Value) ? ((long)0) : ((long)1);
break;
}
return((int)num);
}
internal override object Eval(DataRow row, DataRowVersion version)
{
object obj2 = base.left.Eval(row, version);
if ((obj2 != DBNull.Value) && (!base.left.IsSqlColumn || !DataStorage.IsObjectSqlNull(obj2)))
{
string pattern;
string str3;
if (this.pattern == null)
{
object obj3 = base.right.Eval(row, version);
if (!(obj3 is string) && !(obj3 is SqlString))
{
base.SetTypeMismatchError(base.op, obj2.GetType(), obj3.GetType());
}
if ((obj3 == DBNull.Value) || DataStorage.IsObjectSqlNull(obj3))
{
return(DBNull.Value);
}
string pat = (string)SqlConvert.ChangeType2(obj3, StorageType.String, typeof(string), base.FormatProvider);
pattern = this.AnalyzePattern(pat);
if (base.right.IsConstant())
{
this.pattern = pattern;
}
}
else
{
pattern = this.pattern;
}
if (!(obj2 is string) && !(obj2 is SqlString))
{
base.SetTypeMismatchError(base.op, obj2.GetType(), typeof(string));
}
char[] trimChars = new char[] { ' ', ' ' };
if (obj2 is SqlString)
{
SqlString str6 = (SqlString)obj2;
str3 = str6.Value;
}
else
{
str3 = (string)obj2;
}
string str2 = str3.TrimEnd(trimChars);
switch (this.kind)
{
case 1:
return(0 == base.table.IndexOf(str2, pattern));
case 2:
{
string str4 = pattern.TrimEnd(trimChars);
return(base.table.IsSuffix(str2, str4));
}
case 3:
return(0 <= base.table.IndexOf(str2, pattern));
case 4:
return(0 == base.table.Compare(str2, pattern));
case 5:
return(true);
}
}
return(DBNull.Value);
}
private object EvalFunction(FunctionId id, object[] argumentValues, DataRow row, DataRowVersion version)
{
StorageType type;
switch (id)
{
case FunctionId.Charindex:
if (!DataStorage.IsObjectNull(argumentValues[0]) && !DataStorage.IsObjectNull(argumentValues[1]))
{
if (argumentValues[0] is SqlString)
{
SqlString str6 = (SqlString)argumentValues[0];
argumentValues[0] = str6.Value;
}
if (argumentValues[1] is SqlString)
{
SqlString str5 = (SqlString)argumentValues[1];
argumentValues[1] = str5.Value;
}
return(((string)argumentValues[1]).IndexOf((string)argumentValues[0], StringComparison.Ordinal));
}
return(DBNull.Value);
case FunctionId.Len:
{
if (!(argumentValues[0] is SqlString))
{
goto Label_02D4;
}
SqlString str4 = (SqlString)argumentValues[0];
if (!str4.IsNull)
{
SqlString str3 = (SqlString)argumentValues[0];
argumentValues[0] = str3.Value;
goto Label_02D4;
}
return(DBNull.Value);
}
case FunctionId.Substring:
{
int startIndex = ((int)argumentValues[1]) - 1;
int length = (int)argumentValues[2];
if (startIndex < 0)
{
throw ExprException.FunctionArgumentOutOfRange("index", "Substring");
}
if (length < 0)
{
throw ExprException.FunctionArgumentOutOfRange("length", "Substring");
}
if (length == 0)
{
return("");
}
if (argumentValues[0] is SqlString)
{
SqlString str2 = (SqlString)argumentValues[0];
argumentValues[0] = str2.Value;
}
int num3 = ((string)argumentValues[0]).Length;
if (startIndex > num3)
{
return(DBNull.Value);
}
if ((startIndex + length) > num3)
{
length = num3 - startIndex;
}
return(((string)argumentValues[0]).Substring(startIndex, length));
}
case FunctionId.IsNull:
if (!DataStorage.IsObjectNull(argumentValues[0]))
{
return(argumentValues[0]);
}
return(argumentValues[1]);
case FunctionId.Iif:
if (!DataExpression.ToBoolean(this.arguments[0].Eval(row, version)))
{
return(this.arguments[2].Eval(row, version));
}
return(this.arguments[1].Eval(row, version));
case FunctionId.Convert:
{
if (this.argumentCount != 2)
{
throw ExprException.FunctionArgumentCount(this.name);
}
if (argumentValues[0] == DBNull.Value)
{
return(DBNull.Value);
}
Type dataType = (Type)argumentValues[1];
StorageType storageType = DataStorage.GetStorageType(dataType);
type = DataStorage.GetStorageType(argumentValues[0].GetType());
if ((storageType == StorageType.DateTimeOffset) && (type == StorageType.String))
{
return(SqlConvert.ConvertStringToDateTimeOffset((string)argumentValues[0], base.FormatProvider));
}
if (StorageType.Object == storageType)
{
return(argumentValues[0]);
}
if ((storageType == StorageType.Guid) && (type == StorageType.String))
{
return(new Guid((string)argumentValues[0]));
}
if (ExpressionNode.IsFloatSql(type) && ExpressionNode.IsIntegerSql(storageType))
{
if (StorageType.Single == type)
{
return(SqlConvert.ChangeType2((float)SqlConvert.ChangeType2(argumentValues[0], StorageType.Single, typeof(float), base.FormatProvider), storageType, dataType, base.FormatProvider));
}
if (StorageType.Double == type)
{
return(SqlConvert.ChangeType2((double)SqlConvert.ChangeType2(argumentValues[0], StorageType.Double, typeof(double), base.FormatProvider), storageType, dataType, base.FormatProvider));
}
if (StorageType.Decimal == type)
{
return(SqlConvert.ChangeType2((decimal)SqlConvert.ChangeType2(argumentValues[0], StorageType.Decimal, typeof(decimal), base.FormatProvider), storageType, dataType, base.FormatProvider));
}
}
return(SqlConvert.ChangeType2(argumentValues[0], storageType, dataType, base.FormatProvider));
}
case FunctionId.cInt:
return(Convert.ToInt32(argumentValues[0], base.FormatProvider));
case FunctionId.cBool:
{
StorageType type4 = DataStorage.GetStorageType(argumentValues[0].GetType());
if (type4 > StorageType.Int32)
{
switch (type4)
{
case StorageType.Double:
return(!(((double)argumentValues[0]) == 0.0));
case StorageType.String:
return(bool.Parse((string)argumentValues[0]));
}
break;
}
switch (type4)
{
case StorageType.Boolean:
return((bool)argumentValues[0]);
case StorageType.Int32:
return(((int)argumentValues[0]) != 0);
}
break;
}
case FunctionId.cDate:
return(Convert.ToDateTime(argumentValues[0], base.FormatProvider));
case FunctionId.cDbl:
return(Convert.ToDouble(argumentValues[0], base.FormatProvider));
case FunctionId.cStr:
return(Convert.ToString(argumentValues[0], base.FormatProvider));
case FunctionId.Abs:
type = DataStorage.GetStorageType(argumentValues[0].GetType());
if (!ExpressionNode.IsInteger(type))
{
if (!ExpressionNode.IsNumeric(type))
{
throw ExprException.ArgumentTypeInteger(funcs[this.info].name, 1);
}
return(Math.Abs((double)argumentValues[0]));
}
return(Math.Abs((long)argumentValues[0]));
case FunctionId.In:
throw ExprException.NYI(funcs[this.info].name);
case FunctionId.Trim:
if (!DataStorage.IsObjectNull(argumentValues[0]))
{
if (argumentValues[0] is SqlString)
{
SqlString str = (SqlString)argumentValues[0];
argumentValues[0] = str.Value;
}
return(((string)argumentValues[0]).Trim());
}
return(DBNull.Value);
case FunctionId.DateTimeOffset:
if (((argumentValues[0] != DBNull.Value) && (argumentValues[1] != DBNull.Value)) && (argumentValues[2] != DBNull.Value))
{
DateTime time = (DateTime)argumentValues[0];
switch (time.Kind)
{
case DateTimeKind.Utc:
if ((((int)argumentValues[1]) != 0) && (((int)argumentValues[2]) != 0))
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
case DateTimeKind.Local:
if ((DateTimeOffset.Now.Offset.Hours != ((int)argumentValues[1])) && (DateTimeOffset.Now.Offset.Minutes != ((int)argumentValues[2])))
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
}
if ((((int)argumentValues[1]) < -14) || (((int)argumentValues[1]) > 14))
{
throw ExprException.InvalidHoursArgument();
}
if ((((int)argumentValues[2]) < -59) || (((int)argumentValues[2]) > 0x3b))
{
throw ExprException.InvalidMinutesArgument();
}
if ((((int)argumentValues[1]) == 14) && (((int)argumentValues[2]) > 0))
{
throw ExprException.InvalidTimeZoneRange();
}
if ((((int)argumentValues[1]) == -14) && (((int)argumentValues[2]) < 0))
{
throw ExprException.InvalidTimeZoneRange();
}
return(new DateTimeOffset((DateTime)argumentValues[0], new TimeSpan((int)argumentValues[1], (int)argumentValues[2], 0)));
}
return(DBNull.Value);
default:
throw ExprException.UndefinedFunction(funcs[this.info].name);
}
throw ExprException.DatatypeConvertion(argumentValues[0].GetType(), typeof(bool));
Label_02D4:
return(((string)argumentValues[0]).Length);
}