dotnet/roslyn
Vedi su GitHubNullable check ignores NotNullIfNotNullAttribute when the argument is method group
Open
#77.475 aperta il 9 mar 2025
Area-CompilersBugFeature - Nullable Reference Typeshelp wanted
Metriche repository
- Star
- (20.414 star)
- Metriche merge PR
- (Merge medio 6g 17h) (256 PR mergiate in 30 g)
Descrizione
.NET SDK 9.0.200:
Steps to Reproduce:
#nullable enable
using System.Linq; // Enumerable.Select
string[] a = ["1", "a"]; // element not null
_ = a.Select(Foo) // returns string?[]
.First().ToString(); // CS8602, unexpected
_ = a.Select(t => Foo(t)) // returns string[]
.First().ToString(); // correct, expected
[return: NotNullIfNotNull(nameof(x))]
string? Foo(string? x) => x;
Diagnostic Id:
CS8602
Expected Behavior:
Nullable check Does not ignore NotNullIfNotNullAttribute when the argument is method group
Actual Behavior:
Nullable check ignores NotNullIfNotNullAttribute when the argument is method group