internal IObjectReaderFactory GetFactory(Type elementType, Type dataReaderType, object mapping,
DataLoadOptions options, SqlExpression projection)
{
for (LinkedListNode <CacheInfo> node = list.First; node != null; node = node.Next)
{
if ((((elementType == node.Value.elementType) && (dataReaderType == node.Value.dataReaderType)) &&
((mapping == node.Value.mapping) && ShapesAreSimilar(options, node.Value.options))) &&
SqlProjectionComparer.AreSimilar(projection, node.Value.projection))
{
list.Remove(node);
list.AddFirst(node);
return(node.Value.factory);
}
}
return(null);
}
public IObjectReaderFactory Compile(SqlExpression expression, Type elementType)
{
//-------------------------SOURCE CODE--------------------------
object identity = this.services.Context.Mapping.Identity;
//--------------------------------------------------------------
//var bf = BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.GetProperty;
//object identity = typeof(MetaModel).InvokeMember("Identity", bf, null, services.Context.Mapping, null);
//--------------------------------------------------------------
DataLoadOptions loadOptions = services.Context.LoadOptions;
IObjectReaderFactory factory = null;
ReaderFactoryCache data = null;
bool flag = SqlProjectionComparer.CanBeCompared(expression);
if (flag)
{
data = (ReaderFactoryCache)Thread.GetData(cacheSlot);
if (data == null)
{
data = new ReaderFactoryCache(maxReaderCacheSize);
Thread.SetData(cacheSlot, data);
}
factory = data.GetFactory(elementType, dataReaderType, identity, loadOptions, expression);
}
if (factory == null)
{
var gen = new Generator(this, elementType);
DynamicMethod method = CompileDynamicMethod(gen, expression, elementType);
var t = typeof(ObjectMaterializer <>).MakeGenericType(new[] { dataReaderType });
var delegateType = typeof(Func <,>).MakeGenericType(new[] { t, elementType });
var delegate2 = method.CreateDelegate(delegateType);
factory = (IObjectReaderFactory)
Activator.CreateInstance(typeof(ObjectReaderFactory <,>).MakeGenericType(new[] { dataReaderType, elementType }),
BindingFlags.NonPublic | BindingFlags.Instance, null,
new object[] { delegate2, gen.NamedColumns, gen.Globals, gen.Locals }, null);
if (flag)
{
expression = new SourceExpressionRemover().VisitExpression(expression);
data.AddFactory(elementType, dataReaderType, identity, loadOptions, expression, factory);
}
}
return(factory);
}
