public ExpressionLike(Expression left, Expression right, Expression escape, bool noOptimisation) : base(0x35)
{
base.nodes = new Expression[] { left, right, escape };
this._likeObject = new Like();
base.NoOptimisation = noOptimisation;
}
public override void ResolveTypes(Session session, Expression parent)
{
for (int i = 0; i < base.nodes.Length; i++)
{
if (base.nodes[i] != null)
{
base.nodes[i].ResolveTypes(session, this);
}
}
bool flag = true;
if (base.nodes[2] != null)
{
if (base.nodes[2].IsUnresolvedParam())
{
throw Error.GetError(0x15bf);
}
base.nodes[2].ResolveTypes(session, this);
flag = base.nodes[2].OpType == 1;
if (flag)
{
base.nodes[2].SetAsConstantValue(session);
if (base.nodes[2].DataType == null)
{
throw Error.GetError(0x15bf);
}
if (base.nodes[2].ValueData != null)
{
long length;
int typeCode = base.nodes[2].DataType.TypeCode;
switch (typeCode)
{
case 1:
case 12:
length = ((string)base.nodes[2].ValueData).Length;
break;
default:
if ((typeCode - 60) <= 1)
{
length = ((BinaryData)base.nodes[2].ValueData).Length(session);
break;
}
throw Error.GetError(0x15bd);
}
if (length != 1L)
{
throw Error.GetError(0xd6f);
}
}
}
}
if ((base.nodes[0].DataType == null) && (base.nodes[1].DataType == null))
{
throw Error.GetError(0x15bf);
}
if (base.nodes[0].IsUnresolvedParam())
{
base.nodes[0].DataType = base.nodes[1].DataType.IsBinaryType() ? ((SqlType)SqlType.SqlVarbinaryDefault) : ((SqlType)SqlType.SqlVarcharDefault);
}
else if (base.nodes[1].IsUnresolvedParam())
{
base.nodes[1].DataType = base.nodes[0].DataType.IsBinaryType() ? ((SqlType)SqlType.SqlVarbinaryDefault) : ((SqlType)SqlType.SqlVarcharDefault);
}
if ((base.nodes[0].DataType.IsCharacterType() && base.nodes[1].DataType.IsCharacterType()) && ((base.nodes[2] == null) || base.nodes[2].DataType.IsCharacterType()))
{
bool flag3 = (base.nodes[0].DataType.TypeCode == 100) || (base.nodes[1].DataType.TypeCode == 100);
this._likeObject.SetIgnoreCase(flag3);
}
else
{
if ((!base.nodes[0].DataType.IsBinaryType() || !base.nodes[1].DataType.IsBinaryType()) || ((base.nodes[2] != null) && !base.nodes[2].DataType.IsBinaryType()))
{
throw Error.GetError(0x15bd);
}
this._likeObject.IsBinary = true;
}
this._likeObject.DataType = base.nodes[0].DataType;
bool flag2 = base.nodes[1].OpType == 1;
if ((flag2 & flag) && (base.nodes[0].OpType == 1))
{
base.SetAsConstantValue(session);
this._likeObject = null;
}
else if (flag2 & flag)
{
this._likeObject.IsVariable = false;
object a = null;
if (flag2)
{
a = base.nodes[1].GetValue(session);
if (base.nodes[1].DataType.IsCharacterType())
{
if (base.nodes[1].DataType.IsLobType())
{
a = SqlType.SqlVarcharDefault.ConvertToType(session, a, base.nodes[1].DataType);
}
}
else if (base.nodes[1].DataType.IsLobType())
{
a = SqlType.SqlVarbinaryDefault.ConvertToType(session, a, base.nodes[1].DataType);
}
}
object obj3 = null;
if (flag && (base.nodes[2] > null))
{
obj3 = base.nodes[2].GetValue(session);
if (base.nodes[2].DataType.IsCharacterType())
{
if (base.nodes[2].DataType.IsLobType())
{
obj3 = SqlType.SqlVarcharDefault.ConvertToType(session, obj3, base.nodes[2].DataType);
}
}
else if (base.nodes[2].DataType.IsLobType())
{
obj3 = SqlType.SqlVarbinaryDefault.ConvertToType(session, obj3, base.nodes[2].DataType);
}
}
this._likeObject.SetPattern(session, a, obj3, base.nodes[2] > null);
base.NoOptimisation = true;
}
}
