static class MapperImpl<TFrom,TTo>
{
    public static ObjectsMapper<TFrom,TTo> Instance = new ObjectsMapper<TFrom, TTo>(
        new ObjectsMapperManager().GetMapperImpl(
            typeof(TFrom),
            typeof(TTo),
            DefaultMapConfig.Instance
        )
    );
}

public ObjectsMapper<TFrom, TTo> GetMapper<TFrom, TTo>()
{
    return MapperImpl<TFrom,TTo>.Instance;
}

[MapField("str2", "i.str2")]
public class Destination
{
    public class Int
    {
        public string str2;
    }

    public string str1;
    public Int i = new Int();
}

[MapField("str2", "i.str2")]
public class Source
{
    public class Int
    {
        public string str2 = "B1::Int::str2";
    }

    public string str1 = "B1::str1";
    public Int i = new Int();
}

public class A2
{
    public string str1;
    public string str2;
    public string str3;
    public string str4;
    public string str5;
    public string str6;
    public string str7;
    public string str8;
    public string str9;

    public int n1;
    public int n2;
    public int n3;
    public int n4;
    public int n5;
    public int n6;
    public int n7;
}

public class B2
{
    public string str1 = "str1";
    public string str2 = "str2";
    public string str3 = "str3";
    public string str4 = "str4";
    public string str5 = "str5";
    public string str6 = "str6";
    public string str7 = "str7";
    public string str8 = "str8";
    public string str9 = "str9";

    public int n1 = 1;
    public long n2 = 2;
    public short n3 = 3;
    public byte n4 = 4;
    public decimal n5 = 5;
    public float n6 = 6;
    public int n7 = 7;

}

static long BenchBLToolkit_List(int mappingsCount)
{
    var list = new List<B2>();

    for (var i = 0; i < mappingsCount; i++)
        list.Add(new B2());

    var sw = new Stopwatch();
    sw.Start();

    var dest = Map.ListToList<A2>(list);

    sw.Stop();
    return sw.ElapsedMilliseconds;
}

static long EmitMapper_List(int mappingsCount)
{
    var list = new List<B2>();

    for (var i = 0; i < mappingsCount; i++)
        list.Add(new B2());

    var sw = new Stopwatch();
    sw.Start();

    var mapper = ObjectsMapperManager.DefaultInstance.GetMapper<B2, A2>();
    var dest   = new List<A2>();

    foreach (var item in list)
        dest.Add(mapper.Map(item));

    sw.Stop();
    return sw.ElapsedMilliseconds;
}

public class B2
{
    ...
    public decimal? n5 = null;
    ....
}

static long BLToolkit_DB(int mappingsCount)
{
    DbManager.AddConnectionString("data source=.;initial catalog=Northwind;integrated security=SSPI;");

    var sw = new Stopwatch();
    sw.Start();

    for (var i = 0; i < mappingsCount; i++)
    {
        using (var db = new DbManager())
        {
            var list = db
                .SetCommand("SELECT * FROM Customers")
                .ExecuteList<Customers>();
        }
    }

    sw.Stop();
    return sw.ElapsedMilliseconds;
}

static long EmitMapper_DB(int mappingsCount)
{
    var sw = new Stopwatch();
    sw.Start();

    for (var i = 0; i < mappingsCount; i++)
    {
        using(var con = new SqlConnection("data source=.;initial catalog=Northwind;integrated security=SSPI;"))
        using(var cmd = con.CreateCommand())
        {
            con.Open();

            cmd.Connection  = con;
            cmd.CommandType = System.Data.CommandType.Text;
            cmd.CommandText = "SELECT * FROM Customers";

            using (var reader = cmd.ExecuteReader())
            {
                var list  = reader.ToObjects<Customers>(null).ToList();
            }
        }
    }

    sw.Stop();
    return sw.ElapsedMilliseconds;
}

public DTOCustomer GetCustomer(Guid customerId)
{
    using (var dc = new DataContext())
    {
        var customer = dc.Customers.Where(c => c.CustomerID == customerId).Single();
        return ObjectsMapperManager.DefaultInstance.GetMapper<Customer, DTOCustomer>().Map(customer);
    }
}

 EditableObjects\NotifyCollectionChangeTest.cs(497,48): error CS0433: The type 'System.Collections.Specialized.NotifyCollectionChangedEventArgs' exists in both 'f:\svn\bl-toolkit\Source\bin\Release\BLToolkit.3.dll' and 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WindowsBase.dll'
EditableObjects\NotifyCollectionChangeTest.cs(62,58): error CS0433: The type 'System.Collections.Specialized.NotifyCollectionChangedEventArgs' exists in both 'f:\svn\bl-toolkit\Source\bin\Release\BLToolkit.3.dll' and 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WindowsBase.dll'
EditableObjects\NotifyCollectionChangeTest.cs(446,52): error CS0433: The type 'System.Collections.Specialized.NotifyCollectionChangedEventArgs' exists in both 'f:\svn\bl-toolkit\Source\bin\Release\BLToolkit.3.dll' and 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WindowsBase.dll'
Done Building Project "F:\svn\bl-toolkit\UnitTests\CS\UnitTests.CS.csproj" (default targets) -- FAILED.
Project "F:\svn\bl-toolkit\BLToolkit.2008.sln" (1) is building "F:\svn\bl-toolkit\UnitTests\Linq\UnitTests.Linq.csproj" (13) on node 0 (default targets).
  Processing 0 EDMX files.
  Finished processing 0 EDMX files.
ConvertTest.cs(7,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
CompileTest.cs(7,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
MathFunctions.cs(3,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
Exceptions\Inheritance.cs(6,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
Model\NorthwindDB.cs(4,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
Exceptions\Mapping.cs(5,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
Functions.cs(7,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
DateTimeFunctions.cs(6,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
StringFunctions.cs(8,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
TestDbManager.cs(4,22): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
WhereTest.cs(11,23): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'BLToolkit.Data' (are you missing an assembly reference?)
Model\NorthwindDB.cs(14,10): error CS0246: The type or namespace name 'Table' could not be found (are you missing a using directive or an assembly reference?)
Model\NorthwindDB.cs(15,10): error CS0246: The type or namespace name 'Table' could not be found (are you missing a using directive or an assembly reference?)
Model\NorthwindDB.cs(16,10): error CS0246: The type or namespace name 'Table' could not be found (are you missing a using directive or an assembly reference?)

%windir%\Microsoft.NET\Framework\v3.5\MSBuild.exe BLToolkit.2008.sln  /property:Configuration=Release

H>%windir%\Microsoft.NET\Framework\v3.5\MSBuild.exe BLToolkit.2008.sln  /property:Configuration=Release
H>

%windir%\Microsoft.NET\Framework\v3.5\MSBuild.exe BLToolkit.3.csproj /property:Configuration=Release

H>отлично. Any ETA?

IT>Совсем не плохо.

IT>static class MapperImpl<TFrom,TTo>
IT>{
IT>    public static ObjectsMapper<TFrom,TTo> Instance = new ObjectsMapper<TFrom, TTo>(
IT>        new ObjectsMapperManager().GetMapperImpl(
IT>            typeof(TFrom),
IT>            typeof(TTo),
IT>            DefaultMapConfig.Instance
IT>        )
IT>    );
IT>}
IT>public ObjectsMapper<TFrom, TTo> GetMapper<TFrom, TTo>()
IT>{
IT>    return MapperImpl<TFrom,TTo>.Instance;
IT>}
IT>

IT>[MapField("str2", "i.str2")]
IT>public class Destination
IT>{
IT>    public class Int
IT>    {
IT>        public string str2;
IT>    }

IT>    public string str1;
IT>    public Int i = new Int();
IT>}

IT>[MapField("str2", "i.str2")]
IT>public class Source
IT>{
IT>    public class Int
IT>    {
IT>        public string str2 = "B1::Int::str2";
IT>    }

IT>    public string str1 = "B1::str1";
IT>    public Int i = new Int();
IT>}
IT>

Destination.i.str2 = Source.i.str2;

API для получения мэппера как это происходит в сценарии в BLT попросту отсутствует.

IT>...
IT>

IT>public class B2
IT>{
IT>    ...
IT>    public decimal? n5 = null;
IT>    ....
IT>}
IT>

var mapper = ObjectsMapperManager.DefaultInstance.GetMapper<B2, A2>(
        new DefaultMapConfig().NullSubstitution<decimal?,int>( state => 42 )
    );

IT>...
IT>

IT>public DTOCustomer GetCustomer(Guid customerId)
IT>{
IT>    using (var dc = new DataContext())
IT>    {
IT>        var customer = dc.Customers.Where(c => c.CustomerID == customerId).Single();
IT>        return ObjectsMapperManager.DefaultInstance.GetMapper<Customer, DTOCustomer>().Map(customer);
IT>    }
IT>}
IT>