/// <summary>Visits a type binary expression.</summary>
/// <param name="expression">Expression to be visited.</param>
/// <returns>Expression visited</returns>
protected override System.Linq.Expressions.Expression VisitTypeBinary(System.Linq.Expressions.TypeBinaryExpression expression)
{
var classMappings = MappingsRepository.FindMappedClasses(expression.TypeOperand);
if (classMappings.Any())
{
Remotion.Linq.Clauses.FromClauseBase sourceExpression = GetSourceExpression(expression.Expression);
StrongEntityAccessor entityAccessor = _query.FindAllComponents <StrongEntityAccessor>().FirstOrDefault(item => item.SourceExpression == sourceExpression);
if (entityAccessor == null)
{
entityAccessor = this.GetEntityAccessor(sourceExpression);
_query.Elements.Add(entityAccessor);
}
EntityTypeConstrain typeConstrain = this.CreateTypeConstrain(expression.TypeOperand, entityAccessor.SourceExpression.FromExpression);
_lastComponent = typeConstrain;
if ((_currentComponent.Count > 0) && (_currentComponent.Peek() is BinaryOperatorNavigator))
{
HandleComponent(typeConstrain);
}
else if (!entityAccessor.Elements.Contains(typeConstrain))
{
entityAccessor.Elements.Add(typeConstrain);
}
}
else
{
return(base.VisitTypeBinary(expression));
}
return(expression);
}