Create DiagnosticSuppressor for CS8602 in Linq expressions and Includes #21663
Description
Currently CS8602 (Dereference of possibly null reference) is triggered for nullable properties in linq expressions, even though no NRE possible when query is executed on DB side.
Example 1 (Linq):
class User
{
public string FirstName {get;set;}
public string? MiddleName {get;set;}
public string LastName {get;set;}
}
...
string searchTerm = "...";
await dbContext.Users
.Where(u => u => u.FirstName.Contains(searchTerm)
|| u.MiddleName.Contains(searchTerm) <---------- CS8602 is reported, as 'MiddleName' is nullable
|| u.LastName.Contains(searchTerm))
.ToListAsync();Example 2 (Includes):
class SomeModel
{
public class NavigationModel Navigation? {get;set;}
}
class NavigationModel
{
public class AnotherNavigationModel DeeperNavigation {get;set;}
}
dbContext.Models
.Include(m => m.Navigation)
.ThenInclude(n => n.DeeperNavigation) <----- CS8602 is reported, as 'n' is nullableSuggestion:
Create DiagnosticSuppressor for CS8602 for IQueryable expressions in Linq methods and for Include/ThenInclude methods.