4.0.0: Not finding source generated containing type #127
Description
Getting the following exception when using EntityFrameworkCore.Projectables V4.0.0:
Unhandled exception. System.InvalidOperationException: Unable to resolve generated expression for ProjectableV4.PersonExtensions.IsOwner.
at EntityFrameworkCore.Projectables.Services.ProjectionExpressionResolver.FindGeneratedExpression(MemberInfo projectableMemberInfo)
at EntityFrameworkCore.Projectables.Services.ProjectableExpressionReplacer.TryGetReflectedExpression(MemberInfo memberInfo, LambdaExpression& reflectedExpression)
at EntityFrameworkCore.Projectables.Services.ProjectableExpressionReplacer.VisitMethodCall(MethodCallExpression node)
at System.Linq.Expressions.ExpressionVisitor.VisitLambda[T](Expression`1 node)
at System.Linq.Expressions.ExpressionVisitor.VisitUnary(UnaryExpression node)
at System.Dynamic.Utils.ExpressionVisitorUtils.VisitArguments(ExpressionVisitor visitor, IArgumentProvider nodes)
at System.Linq.Expressions.ExpressionVisitor.VisitMethodCall(MethodCallExpression node)
at EntityFrameworkCore.Projectables.Services.ProjectableExpressionReplacer.VisitMethodCall(MethodCallExpression node)
at EntityFrameworkCore.Projectables.Services.ProjectableExpressionReplacer.Replace(Expression node)
at EntityFrameworkCore.Projectables.Infrastructure.Internal.CustomQueryCompiler.Expand(Expression expression)
at EntityFrameworkCore.Projectables.Infrastructure.Internal.CustomQueryCompiler.Execute[TResult](Expression query)
at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.Execute[TResult](Expression expression)
at ProjectableV4.Program.Main(String[] args) in (...)/ProjectablesBug/ProjectableV4/Program.cs:line 15
when running this code:
class Program
{
static void Main(string[] args)
{
var dataContext = GetDataContext();
var result = dataContext.Persons.FirstOrDefault(x => x.IsOwner()); //throws
var generatedContainingTypeName = Assembly.GetExecutingAssembly().GetType("EntityFrameworkCore.Projectables.Generated.ProjectableV4_PersonExtensions_IsOwner"); // null
}
private static DataContext GetDataContext()
{
var dboptions = new DbContextOptionsBuilder<DataContext>();
dboptions.UseInMemoryDatabase("InMemoryDatabase");
dboptions.UseProjectables();
return new DataContext(dboptions.Options);
}
}
public class DataContext(DbContextOptions<DataContext> options) : DbContext(options)
{
public DbSet<Person> Persons { get; set; }
}
public class Person
{
public Guid Id { get; set; }
public string Type { get; set; }
}
public static class PersonExtensions
{
[Projectable]
public static bool IsOwner(this Person person) => person.Type == "O";
}Am I doing something wrong or is there a bug here? Interestingly, the code runs just fine if I use version 3.0.4 instead:
static void Main(string[] args)
{
var dataContext = GetDataContext();
var result = dataContext.Persons.FirstOrDefault(x => x.IsOwner()); // does not throw
var generatedContainingTypeName = Assembly.GetExecutingAssembly().GetType("EntityFrameworkCore.Projectables.Generated.ProjectableV3_PersonExtensions_IsOwner"); // not null
}See attached MRE.