System.Data.SQLite
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Overview
Comment:Globalization updates
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | sourceforge
Files: files | file ages | folders
SHA1: d54fc9e9fb99a42f85281d7c89b48e276f7fa2fa
User & Date: rmsimpson 2005-08-17 21:14:15
Context
2005-08-18
03:46
Updated to reflect 1.0.14 build changes check-in: e14de90abe user: rmsimpson tags: sourceforge
2005-08-17
21:14
Globalization updates check-in: d54fc9e9fb user: rmsimpson tags: sourceforge
21:13
Event optimizations using generics check-in: 1b0be7f408 user: rmsimpson tags: sourceforge
Changes
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Changes to System.Data.SQLite/SQLite3.cs. 

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    }

    internal override void Close()
    {
      if (_sql != 0)
      {
        int n = UnsafeNativeMethods.sqlite3_close_interop(_sql);
        if (n > 0) throw new SQLiteException(n, "in Dispose()");
        SQLiteFunction.UnbindFunctions(this, _functionsArray);
      }
      _sql = 0;
    }

    internal override void Cancel()
    {
................................................................................
      }
    }

    internal override void Open(string strFilename)
    {
      if (_sql != 0) return;
      int n = UnsafeNativeMethods.sqlite3_open_interop(ToUTF8(strFilename), out _sql);
      if (n > 0) throw new SQLiteException(n, "in Open()");

      _functionsArray = SQLiteFunction.BindFunctions(this);
    }

    internal override void SetTimeout(int nTimeoutMS)
    {
      int n = UnsafeNativeMethods.sqlite3_busy_timeout_interop(_sql, nTimeoutMS);
      if (n > 0) throw new SQLiteException(n, "in SetTimeout()");
    }

    internal override void Execute(string strSql)
    {
      IntPtr p;
      string str = strSql;
      int len;
................................................................................

          // An error occurred, attempt to reset the statement.  If the reset worked because the
          // schema has changed, re-try the step again.  If it errored our because the database
          // is locked, then keep retrying until the command timeout occurs.
          r = Reset(stmt);

          if (r == 0)
            throw new SQLiteException(n, "in Step()");

          else if (r == 6 && stmt._command != null) // SQLITE_LOCKED
          {
            // Keep trying
            if (dwtick == 0) // First time we've encountered the lock
            {
              dwtick = DateTime.Now.Ticks + (stmt._command._commandTimeout * 10000000);
              rnd = new Random();
            }
            // If we've exceeded the command's timeout, give up and throw an error
            if (DateTime.Now.Ticks - dwtick > 0)
            {
              throw new SQLiteException(r, "in Step() - timeout");
            }
            else
            {
              // Otherwise sleep for a random amount of time up to 250ms
              UnsafeNativeMethods.Sleep((uint)rnd.Next(1, 250));
            }
          }
................................................................................
    }

    internal override void FinalizeStatement(SQLiteStatement stmt)
    {
      if (stmt._sqlite_stmt > 0)
      {
        int n = UnsafeNativeMethods.sqlite3_finalize_interop(stmt._sqlite_stmt);
        if (n > 0) throw new SQLiteException(n, "in Finalize()");
      }
      stmt._sqlite_stmt = 0;
    }

    internal override int Reset(SQLiteStatement stmt)
    {
      int n;
................................................................................
        }
        return -1; // Reset was OK, with schema change
      }
      else if (n == 6) // SQLITE_LOCKED
        return n;

      if (n > 0)
        throw new SQLiteException(n, "in Reset()");

      return 0; // We reset OK, no schema changes
    }

    internal override string SQLiteLastError()
    {
      int len;
................................................................................
      int stmt;
      IntPtr ptr;
      int len;

      byte[] b = ToUTF8(strSql);

      int n = UnsafeNativeMethods.sqlite3_prepare_interop(_sql, b, b.Length - 1, out stmt, out ptr, out len);
      if (n > 0) throw new SQLiteException(n, "in Prepare()");

      strRemain = ToString(ptr, len);

      SQLiteStatement cmd = null;
      if (stmt > 0) cmd = new SQLiteStatement(this, stmt, strSql.Substring(0, strSql.Length - strRemain.Length), ref nParamStart);

      return cmd;
    }

    internal override void Bind_Double(SQLiteStatement stmt, int index, double value)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_double_interop(stmt._sqlite_stmt, index, ref value);
      if (n > 0) throw new SQLiteException(n, "in Bind_Double()");
    }

    internal override void Bind_Int32(SQLiteStatement stmt, int index, int value)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_int_interop(stmt._sqlite_stmt, index, value);
      if (n > 0) throw new SQLiteException(n, "in Bind_Int32()");
    }

    internal override void Bind_Int64(SQLiteStatement stmt, int index, long value)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_int64_interop(stmt._sqlite_stmt, index, ref value);
      if (n > 0) throw new SQLiteException(n, "in Bind_Int64()");
    }

    internal override void Bind_Text(SQLiteStatement stmt, int index, string value)
    {
      byte[] b = ToUTF8(value);
      int n = UnsafeNativeMethods.sqlite3_bind_text_interop(stmt._sqlite_stmt, index, b, b.Length - 1, -1);
      if (n > 0) throw new SQLiteException(n, "in Bind_Text()");
    }

    internal override void Bind_DateTime(SQLiteStatement stmt, int index, DateTime dt)
    {
      byte[] b = ToUTF8(dt);
      int n = UnsafeNativeMethods.sqlite3_bind_text_interop(stmt._sqlite_stmt, index, b, b.Length - 1, -1);
      if (n > 0) throw new SQLiteException(n, "in Bind_DateTime()");
    }

    internal override void Bind_Blob(SQLiteStatement stmt, int index, byte[] blobData)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_blob_interop(stmt._sqlite_stmt, index, blobData, blobData.Length, -1);
      if (n > 0) throw new SQLiteException(n, "in Bind_Blob()");
    }

    internal override void Bind_Null(SQLiteStatement stmt, int index)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_null_interop(stmt._sqlite_stmt, index);
      if (n > 0) throw new SQLiteException(n, "in Bind_Null()");
    }

    internal override int Bind_ParamCount(SQLiteStatement stmt)
    {
      return UnsafeNativeMethods.sqlite3_bind_parameter_count_interop(stmt._sqlite_stmt);
    }

................................................................................
    }

    internal override int CreateFunction(string strFunction, int nArgs, SQLiteCallback func, SQLiteCallback funcstep, SQLiteCallback funcfinal)
    {
      int nCookie;

      int n = UnsafeNativeMethods.sqlite3_create_function_interop(_sql, ToUTF8(strFunction), nArgs, 1, func, funcstep, funcfinal, out nCookie);
      if (n > 0) throw new SQLiteException(n, "in CreateFunction()");

      return nCookie;
    }

    internal override int CreateCollation(string strCollation, SQLiteCollation func)
    {
      int nCookie;

      int n = UnsafeNativeMethods.sqlite3_create_collation_interop(_sql, ToUTF8(strCollation), 1, 0, func, out nCookie);
      if (n > 0) throw new SQLiteException(n, "in CreateCollation()");

      return nCookie;
    }

    internal override void FreeFunction(int nCookie)
    {
      UnsafeNativeMethods.sqlite3_function_free_callbackcookie(nCookie);








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    }

    internal override void Close()
    {
      if (_sql != 0)
      {
        int n = UnsafeNativeMethods.sqlite3_close_interop(_sql);
        if (n > 0) throw new SQLiteException(n, SQLiteLastError());
        SQLiteFunction.UnbindFunctions(this, _functionsArray);
      }
      _sql = 0;
    }

    internal override void Cancel()
    {
................................................................................
      }
    }

    internal override void Open(string strFilename)
    {
      if (_sql != 0) return;
      int n = UnsafeNativeMethods.sqlite3_open_interop(ToUTF8(strFilename), out _sql);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());

      _functionsArray = SQLiteFunction.BindFunctions(this);
    }

    internal override void SetTimeout(int nTimeoutMS)
    {
      int n = UnsafeNativeMethods.sqlite3_busy_timeout_interop(_sql, nTimeoutMS);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override void Execute(string strSql)
    {
      IntPtr p;
      string str = strSql;
      int len;
................................................................................

          // An error occurred, attempt to reset the statement.  If the reset worked because the
          // schema has changed, re-try the step again.  If it errored our because the database
          // is locked, then keep retrying until the command timeout occurs.
          r = Reset(stmt);

          if (r == 0)
            throw new SQLiteException(n, SQLiteLastError());

          else if (r == 6 && stmt._command != null) // SQLITE_LOCKED
          {
            // Keep trying
            if (dwtick == 0) // First time we've encountered the lock
            {
              dwtick = DateTime.Now.Ticks + (stmt._command._commandTimeout * 10000000);
              rnd = new Random();
            }
            // If we've exceeded the command's timeout, give up and throw an error
            if (DateTime.Now.Ticks - dwtick > 0)
            {
              throw new SQLiteException(r, SQLiteLastError());
            }
            else
            {
              // Otherwise sleep for a random amount of time up to 250ms
              UnsafeNativeMethods.Sleep((uint)rnd.Next(1, 250));
            }
          }
................................................................................
    }

    internal override void FinalizeStatement(SQLiteStatement stmt)
    {
      if (stmt._sqlite_stmt > 0)
      {
        int n = UnsafeNativeMethods.sqlite3_finalize_interop(stmt._sqlite_stmt);
        if (n > 0) throw new SQLiteException(n, SQLiteLastError());
      }
      stmt._sqlite_stmt = 0;
    }

    internal override int Reset(SQLiteStatement stmt)
    {
      int n;
................................................................................
        }
        return -1; // Reset was OK, with schema change
      }
      else if (n == 6) // SQLITE_LOCKED
        return n;

      if (n > 0)
        throw new SQLiteException(n, SQLiteLastError());

      return 0; // We reset OK, no schema changes
    }

    internal override string SQLiteLastError()
    {
      int len;
................................................................................
      int stmt;
      IntPtr ptr;
      int len;

      byte[] b = ToUTF8(strSql);

      int n = UnsafeNativeMethods.sqlite3_prepare_interop(_sql, b, b.Length - 1, out stmt, out ptr, out len);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());

      strRemain = ToString(ptr, len);

      SQLiteStatement cmd = null;
      if (stmt > 0) cmd = new SQLiteStatement(this, stmt, strSql.Substring(0, strSql.Length - strRemain.Length), ref nParamStart);

      return cmd;
    }

    internal override void Bind_Double(SQLiteStatement stmt, int index, double value)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_double_interop(stmt._sqlite_stmt, index, ref value);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override void Bind_Int32(SQLiteStatement stmt, int index, int value)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_int_interop(stmt._sqlite_stmt, index, value);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override void Bind_Int64(SQLiteStatement stmt, int index, long value)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_int64_interop(stmt._sqlite_stmt, index, ref value);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override void Bind_Text(SQLiteStatement stmt, int index, string value)
    {
      byte[] b = ToUTF8(value);
      int n = UnsafeNativeMethods.sqlite3_bind_text_interop(stmt._sqlite_stmt, index, b, b.Length - 1, -1);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override void Bind_DateTime(SQLiteStatement stmt, int index, DateTime dt)
    {
      byte[] b = ToUTF8(dt);
      int n = UnsafeNativeMethods.sqlite3_bind_text_interop(stmt._sqlite_stmt, index, b, b.Length - 1, -1);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override void Bind_Blob(SQLiteStatement stmt, int index, byte[] blobData)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_blob_interop(stmt._sqlite_stmt, index, blobData, blobData.Length, -1);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override void Bind_Null(SQLiteStatement stmt, int index)
    {
      int n = UnsafeNativeMethods.sqlite3_bind_null_interop(stmt._sqlite_stmt, index);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());
    }

    internal override int Bind_ParamCount(SQLiteStatement stmt)
    {
      return UnsafeNativeMethods.sqlite3_bind_parameter_count_interop(stmt._sqlite_stmt);
    }

................................................................................
    }

    internal override int CreateFunction(string strFunction, int nArgs, SQLiteCallback func, SQLiteCallback funcstep, SQLiteCallback funcfinal)
    {
      int nCookie;

      int n = UnsafeNativeMethods.sqlite3_create_function_interop(_sql, ToUTF8(strFunction), nArgs, 1, func, funcstep, funcfinal, out nCookie);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());

      return nCookie;
    }

    internal override int CreateCollation(string strCollation, SQLiteCollation func)
    {
      int nCookie;

      int n = UnsafeNativeMethods.sqlite3_create_collation_interop(_sql, ToUTF8(strCollation), 1, 0, func, out nCookie);
      if (n > 0) throw new SQLiteException(n, SQLiteLastError());

      return nCookie;
    }

    internal override void FreeFunction(int nCookie)
    {
      UnsafeNativeMethods.sqlite3_function_free_callbackcookie(nCookie);

Changes to System.Data.SQLite/SQLiteConnection.cs. 

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        {
          foreach (DataRow row in tbl.Rows)
          {
            str = row[0].ToString();
            if (String.Compare(str, "main", true, CultureInfo.InvariantCulture) != 0
              && String.Compare(str, "temp", true, CultureInfo.InvariantCulture) != 0)
            {
              _sql.Execute(String.Format(System.Globalization.CultureInfo.InvariantCulture, "ATTACH DATABASE '{0}' AS [{1}]", row[1], row[0]));
            }
          }
        }
      }
    }

#if PLATFORM_COMPACTFRAMEWORK
................................................................................

      using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] NOT LIKE 'index'", strCatalog), this))
      {
        using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader())
        {
          while (rd.Read())
          {
            strItem = rd.GetString(0).ToUpper(CultureInfo.CurrentCulture);
            if (rd.GetString(2).ToUpper(CultureInfo.CurrentCulture).IndexOf("SQLITE_") == 0)
              strItem = "SYSTEM_TABLE";

            if (String.Compare(strType, strItem, true, CultureInfo.CurrentCulture) == 0
              || strType == null)
            {
              if (String.Compare(rd.GetString(2), strTable, true, CultureInfo.CurrentCulture) == 0
                || strTable == null)
................................................................................
    <IsCaseSensitive>false</IsCaseSensitive>
    <IsFixedLength>false</IsFixedLength>
    <IsFixedPrecisionScale>false</IsFixedPrecisionScale>
    <IsLong>true</IsLong>
    <IsNullable>true</IsNullable>
    <IsSearchable>false</IsSearchable>
    <IsSearchableWithLike>false</IsSearchableWithLike>


  </DataTypes>
  <DataTypes>
    <TypeName>System.String</TypeName>
    <ProviderDbType>16</ProviderDbType>
    <ColumnSize>2147483647</ColumnSize>
    <CreateParameters>max length</CreateParameters>
    <DataType>System.String</DataType>








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          foreach (DataRow row in tbl.Rows)
          {
            str = row[0].ToString();
            if (String.Compare(str, "main", true, CultureInfo.InvariantCulture) != 0
              && String.Compare(str, "temp", true, CultureInfo.InvariantCulture) != 0)
            {
              _sql.Execute(String.Format(CultureInfo.InvariantCulture, "ATTACH DATABASE '{0}' AS [{1}]", row[1], row[0]));
            }
          }
        }
      }
    }

#if PLATFORM_COMPACTFRAMEWORK
................................................................................

      using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] NOT LIKE 'index'", strCatalog), this))
      {
        using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader())
        {
          while (rd.Read())
          {
            strItem = rd.GetString(0);
            if (String.Compare(rd.GetString(2), 0, "SQLITE_", 0, 7, true, CultureInfo.CurrentCulture) == 0)
              strItem = "SYSTEM_TABLE";

            if (String.Compare(strType, strItem, true, CultureInfo.CurrentCulture) == 0
              || strType == null)
            {
              if (String.Compare(rd.GetString(2), strTable, true, CultureInfo.CurrentCulture) == 0
                || strTable == null)
................................................................................
    <IsCaseSensitive>false</IsCaseSensitive>
    <IsFixedLength>false</IsFixedLength>
    <IsFixedPrecisionScale>false</IsFixedPrecisionScale>
    <IsLong>true</IsLong>
    <IsNullable>true</IsNullable>
    <IsSearchable>false</IsSearchable>
    <IsSearchableWithLike>false</IsSearchableWithLike>
    <LiteralPrefix>X'</LiteralPrefix>
    <LiteralSuffix>'</LiteralSuffix>
  </DataTypes>
  <DataTypes>
    <TypeName>System.String</TypeName>
    <ProviderDbType>16</ProviderDbType>
    <ColumnSize>2147483647</ColumnSize>
    <CreateParameters>max length</CreateParameters>
    <DataType>System.String</DataType>

Changes to System.Data.SQLite/SQLiteConvert.cs. 

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    /// <param name="dateText">The string containing either a Tick value or an ISO8601-format string</param>
    /// <returns>A DateTime value</returns>
    public DateTime ToDateTime(string dateText)
    {
      switch (_datetimeFormat)
      {
        case SQLiteDateFormats.Ticks:
          return new DateTime(Convert.ToInt64(dateText, System.Globalization.CultureInfo.InvariantCulture));
        default:
          return DateTime.ParseExact(dateText, _datetimeFormats, System.Globalization.DateTimeFormatInfo.InvariantInfo, System.Globalization.DateTimeStyles.None);
      }
    }

    /// <summary>
    /// Converts a DateTime to a string value, using the current DateTimeFormat specified for the connection when it was opened.
    /// </summary>
    /// <param name="dateValue">The DateTime value to convert</param>
    /// <returns>Either a string consisting of the tick count for DateTimeFormat.Ticks, or a date/time in ISO8601 format.</returns>
    public string ToString(DateTime dateValue)
    {
      switch (_datetimeFormat)
      {
        case SQLiteDateFormats.Ticks:
          return dateValue.Ticks.ToString(System.Globalization.CultureInfo.InvariantCulture);
        default:
          return dateValue.ToString(_datetimeFormats[0], System.Globalization.CultureInfo.InvariantCulture);
      }
    }

    /// <summary>
    /// Internal function to convert a UTF-8 encoded IntPtr of the specified length to a DateTime.
    /// </summary>
    /// <remarks>
................................................................................
    /// </summary>
    /// <param name="Name">The name of the type to match</param>
    /// <returns>The .NET DBType the text evaluates to.</returns>
    internal static DbType TypeNameToDbType(string Name)
    {
      if (String.IsNullOrEmpty(Name)) return DbType.Object;

      Name = Name.ToUpper(CultureInfo.InvariantCulture);

      int x = _typeNames.Length;
      for (int n = 0; n < x; n++)
      {
        if (Name.StartsWith(_typeNames[n].typeName))
          return _typeNames[n].dataType; 
      }
      return DbType.Object;
    }
    #endregion

    private static SQLiteTypeNames[] _typeNames = {








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    /// <param name="dateText">The string containing either a Tick value or an ISO8601-format string</param>
    /// <returns>A DateTime value</returns>
    public DateTime ToDateTime(string dateText)
    {
      switch (_datetimeFormat)
      {
        case SQLiteDateFormats.Ticks:
          return new DateTime(Convert.ToInt64(dateText, CultureInfo.InvariantCulture));
        default:
          return DateTime.ParseExact(dateText, _datetimeFormats, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.None);
      }
    }

    /// <summary>
    /// Converts a DateTime to a string value, using the current DateTimeFormat specified for the connection when it was opened.
    /// </summary>
    /// <param name="dateValue">The DateTime value to convert</param>
    /// <returns>Either a string consisting of the tick count for DateTimeFormat.Ticks, or a date/time in ISO8601 format.</returns>
    public string ToString(DateTime dateValue)
    {
      switch (_datetimeFormat)
      {
        case SQLiteDateFormats.Ticks:
          return dateValue.Ticks.ToString(CultureInfo.InvariantCulture);
        default:
          return dateValue.ToString(_datetimeFormats[0], CultureInfo.InvariantCulture);
      }
    }

    /// <summary>
    /// Internal function to convert a UTF-8 encoded IntPtr of the specified length to a DateTime.
    /// </summary>
    /// <remarks>
................................................................................
    /// </summary>
    /// <param name="Name">The name of the type to match</param>
    /// <returns>The .NET DBType the text evaluates to.</returns>
    internal static DbType TypeNameToDbType(string Name)
    {
      if (String.IsNullOrEmpty(Name)) return DbType.Object;



      int x = _typeNames.Length;
      for (int n = 0; n < x; n++)
      {
        if (String.Compare(Name, 0, _typeNames[n].typeName, 0, _typeNames[n].typeName.Length, true, CultureInfo.CurrentCulture) == 0)
          return _typeNames[n].dataType; 
      }
      return DbType.Object;
    }
    #endregion

    private static SQLiteTypeNames[] _typeNames = {

Changes to System.Data.SQLite/SQLiteFunction.cs. 

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namespace System.Data.SQLite
{
  using System;
  using System.Collections;
  using System.Collections.Generic;
  using System.Runtime.InteropServices;


  /// <summary>
  /// The type of user-defined function to declare
  /// </summary>
  public enum FunctionType
  {
    /// <summary>
................................................................................

      switch (SQLiteConvert.TypeToAffinity(t))
      {
        case TypeAffinity.Null:
          _base.ReturnNull(context);
          return;
        case TypeAffinity.Int64:
          _base.ReturnInt64(context, Convert.ToInt64(returnValue, System.Globalization.CultureInfo.CurrentCulture));
          return;
        case TypeAffinity.Double:
          _base.ReturnDouble(context, Convert.ToDouble(returnValue, System.Globalization.CultureInfo.CurrentCulture));
          return;
        case TypeAffinity.Text:
          _base.ReturnText(context, returnValue.ToString());
          return;
        case TypeAffinity.Blob:
          _base.ReturnBlob(context, (byte[])returnValue);
          return;








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namespace System.Data.SQLite
{
  using System;
  using System.Collections;
  using System.Collections.Generic;
  using System.Runtime.InteropServices;
  using System.Globalization;

  /// <summary>
  /// The type of user-defined function to declare
  /// </summary>
  public enum FunctionType
  {
    /// <summary>
................................................................................

      switch (SQLiteConvert.TypeToAffinity(t))
      {
        case TypeAffinity.Null:
          _base.ReturnNull(context);
          return;
        case TypeAffinity.Int64:
          _base.ReturnInt64(context, Convert.ToInt64(returnValue, CultureInfo.CurrentCulture));
          return;
        case TypeAffinity.Double:
          _base.ReturnDouble(context, Convert.ToDouble(returnValue, CultureInfo.CurrentCulture));
          return;
        case TypeAffinity.Text:
          _base.ReturnText(context, returnValue.ToString());
          return;
        case TypeAffinity.Blob:
          _base.ReturnBlob(context, (byte[])returnValue);
          return;

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