36nullableWarnings.Add(GetId(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate)); 441case ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate: 1907case ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate:

7793ReportDiagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, arg.location, 7857ReportDiagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, location,

214case ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate:

7022Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "object? (object x3) =>").WithArguments("lambda expression", "System.Func<object, object>").WithLocation(12, 21), 7031Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "object? (object y3) =>").WithArguments("lambda expression", "System.Func<object, object>").WithLocation(16, 21),

4226Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] () =>").WithArguments("lambda expression", "System.Func<object>").WithLocation(8, 27), 4229Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] () =>").WithArguments("lambda expression", "System.Func<object?>").WithLocation(9, 28), 4273Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] () =>").WithArguments("lambda expression", "System.Func<object>").WithLocation(13, 27), 4276Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] () =>").WithArguments("lambda expression", "D1").WithLocation(14, 17), 4279Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] () =>").WithArguments("lambda expression", "D3").WithLocation(16, 17), 4288Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] () =>").WithArguments("lambda expression", "D2").WithLocation(20, 17), 4297Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] () =>").WithArguments("lambda expression", "System.Func<object?>").WithLocation(23, 28), 4306Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] object? () =>").WithArguments("lambda expression", "D2").WithLocation(25, 18), 4394Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] () =>").WithArguments("lambda expression", "System.Func<object>").WithLocation(13, 30), 4397Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] () =>").WithArguments("lambda expression", "D1").WithLocation(14, 20), 4400Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] () =>").WithArguments("lambda expression", "D3").WithLocation(16, 20), 4409Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] () =>").WithArguments("lambda expression", "D2").WithLocation(20, 20), 4418Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] () =>").WithArguments("lambda expression", "System.Func<object?>").WithLocation(23, 31), 4427Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] object? () =>").WithArguments("lambda expression", "D2").WithLocation(25, 20), 4630Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, @"[return: NotNullIfNotNull(""o"")] (object? o) =>").WithArguments("lambda expression", "D3").WithLocation(17, 17), 5123Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "string () =>").WithArguments("lambda expression", "System.Func<string?>").WithLocation(9, 28)); 5147Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "string? () =>").WithArguments("lambda expression", "System.Func<string>").WithLocation(10, 39)); 5207Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "string () =>").WithArguments("lambda expression", "System.Func<string?>").WithLocation(9, 28), 5210Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "string? () =>").WithArguments("lambda expression", "System.Func<string>").WithLocation(10, 27), 5213Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "S<object> () =>").WithArguments("lambda expression", "System.Func<S<object?>>").WithLocation(13, 31), 5216Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "S<object?> () =>").WithArguments("lambda expression", "System.Func<S<object>>").WithLocation(14, 30)); 5245Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "ref S<object> () =>").WithArguments("lambda expression", "D1<S<object?>>").WithLocation(10, 30), 5248Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "ref S<object?> () =>").WithArguments("lambda expression", "D1<S<object>>").WithLocation(11, 29), 5251Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "ref readonly S<object> () =>").WithArguments("lambda expression", "D2<S<object?>>").WithLocation(14, 30), 5254Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "ref readonly S<object?> () =>").WithArguments("lambda expression", "D2<S<object>>").WithLocation(15, 29)); 5476Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "string () =>").WithArguments("lambda expression", "System.Func<string?>").WithLocation(7, 28), 5482Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "string? () =>").WithArguments("lambda expression", "System.Func<string>").WithLocation(8, 27));

1944Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M2").WithArguments("string? C.M2(string? s)", "C.Copier").WithLocation(6, 20) 2459Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M1").WithArguments("string? C.M1(string? x)", "System.Func<string, string>").WithLocation(13, 45), 4425Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "(D)M1").WithArguments("string? C.M1(string s)", "C.D").WithLocation(6, 17), 11020Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "NullableReturnMethod").WithArguments("string[]? C.NullableReturnMethod(string[] x)", "MyDelegate").WithLocation(18, 25), 37736Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: MaybeNull] string () =>").WithArguments("lambda expression", "System.Func<string>").WithLocation(28, 10), 37739Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "[return: NotNull] string?() =>").WithArguments("lambda expression", "System.Func<string?>").WithLocation(33, 10), 65744Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M1").WithArguments("CL0<string?> C.M1(CL0<string> x)", "C.D1").WithLocation(14, 24), 65750Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M3").WithArguments("CL0<string> C.M3(CL0<string?> x)", "C.D2").WithLocation(24, 24), 65865Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<T?>").WithArguments("T? Program.F<T?>()", "D<T>").WithLocation(7, 22)); 66002Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<object?>").WithArguments("object? C.F<object?>()", "D<object>").WithLocation(10, 27), 66005Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<I<object?>>").WithArguments("I<object?> C.F<I<object?>>()", "D<I<object>>").WithLocation(12, 30), 66008Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<I<object>>").WithArguments("I<object> C.F<I<object>>()", "D<I<object?>>").WithLocation(13, 31), 66011Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<IIn<object>>").WithArguments("IIn<object> C.F<IIn<object>>()", "D<IIn<object?>>").WithLocation(15, 33), 66014Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<IOut<object?>>").WithArguments("IOut<object?> C.F<IOut<object?>>()", "D<IOut<object>>").WithLocation(16, 33)); 66615Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "c.M1").WithArguments("string C.M1()", "System.Func<string>").WithLocation(19, 30), 66709Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "c.M4").WithArguments("string? C.M4()", "D2").WithLocation(20, 20) 66770Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "c.M1").WithArguments("string C.M1()", "System.Func<object>").WithLocation(27, 30), 66776Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "c.M5").WithArguments("string Program.M5(C c)", "System.Func<object>").WithLocation(37, 30), 66841Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "e.FirstOrDefault").WithArguments("string D.FirstOrDefault(string[] e)", "System.Func<string>").WithLocation(13, 26) 66882Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M2").WithArguments("ref readonly string? C.M2()", "D<string>").WithLocation(10, 24), 66885Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "d2").WithArguments("ref readonly string? D<string?>.Invoke()", "D<string>").WithLocation(15, 27), 66925Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M2").WithArguments("ref readonly string? C.M2()", "D1").WithLocation(11, 17), 66928Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "d2").WithArguments("ref readonly string? D2.Invoke()", "D1").WithLocation(16, 20) 66982Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method").WithArguments("string? Helper.Method(string? arg)", "System.Func<string?, string>").WithLocation(24, 16) 67135Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1<string?>").WithArguments("string? Helper.Method1<string?>(string? t)", "System.Func<string?, string>").WithLocation(15, 16), 67138Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1<T?>").WithArguments("T? Helper.Method1<T?>(T? t)", "System.Func<T, T>").WithLocation(23, 16), 67141Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1<T?>").WithArguments("T? Helper.Method1<T?>(T? t)", "System.Func<T?, T>").WithLocation(31, 16) 67243Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1").WithArguments("string? Helper.Method1(string? x, string? y)", "System.Func<string?, string?, string>").WithLocation(23, 16) 67295Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1").WithArguments("string? Helper.Method1<T>(T t)", "System.Func<T, string>").WithLocation(7, 16), 67298Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1").WithArguments("string? Helper.Method1<T>(T t)", "System.Func<T, string>").WithLocation(19, 16), 67301Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1").WithArguments("string? Helper.Method1<T?>(T? t)", "System.Func<T?, string>").WithLocation(28, 16)); 67342Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1").WithArguments("string? Helper.Method1<T>(T t)", "D1<T>").WithLocation(6, 16), 67345Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Helper.Method1").WithArguments("string? Helper.Method1<T?>(T? t)", "D2<T>").WithLocation(10, 16)); 67426Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<object?>").WithArguments("object? C.F<object?>()", "D<object>").WithLocation(10, 23), 67429Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<I<object?>>").WithArguments("I<object?> C.F<I<object?>>()", "D<I<object>>").WithLocation(12, 26), 67432Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<I<object>>").WithArguments("I<object> C.F<I<object>>()", "D<I<object?>>").WithLocation(13, 27), 67435Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<IIn<object>>").WithArguments("IIn<object> C.F<IIn<object>>()", "D<IIn<object?>>").WithLocation(15, 29), 67438Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F<IOut<object?>>").WithArguments("IOut<object?> C.F<IOut<object?>>()", "D<IOut<object>>").WithLocation(16, 29)); 67513Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "x.M").WithArguments("object? A<object?>.M()", "D<object>").WithLocation(13, 23)); 69608Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M1<string?>").WithArguments("string? C.M1<string?>()", "System.Func<string>").WithLocation(17, 34), 69611Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M1<CL0<string>>").WithArguments("CL0<string> C.M1<CL0<string>>()", "System.Func<CL0<string?>>").WithLocation(22, 40), 69614Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M1<CL0<string?>>").WithArguments("CL0<string?> C.M1<CL0<string?>>()", "System.Func<CL0<string>>").WithLocation(27, 39) 69647Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "(System.Func<string>)M1<string?>").WithArguments("string? C.M1<string?>()", "System.Func<string>").WithLocation(13, 34), 69650Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "(System.Func<CL0<string?>>)M1<CL0<string>>").WithArguments("CL0<string> C.M1<CL0<string>>()", "System.Func<CL0<string?>>").WithLocation(14, 40), 69653Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "(System.Func<CL0<string>>)M1<CL0<string?>>").WithArguments("CL0<string?> C.M1<CL0<string?>>()", "System.Func<CL0<string>>").WithLocation(15, 39) 74474Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F2").WithArguments("string? C.F2()", "D<object>").WithLocation(12, 19), 74477Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "F4").WithArguments("object? C.F4()", "D<object>").WithLocation(14, 19)); 136638Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "t.F").WithArguments("T? E.F<T?>(T? t)", "D<T>").WithLocation(12, 13), 136641Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "t.F<T?>").WithArguments("T? E.F<T?>(T? t)", "D<T>").WithLocation(14, 13), 136644Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "t.F").WithArguments("T? E.F<T?>(T? t)", "D<T>").WithLocation(16, 22), 136647Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "t.F<T?>").WithArguments("T? E.F<T?>(T? t)", "D<T>").WithLocation(18, 22)); 136686Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Create(y).F").WithArguments("object? C<object?>.F()", "D<object>").WithLocation(18, 14), 136689Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Create(y).F").WithArguments("object? C<object?>.F()", "D<object>").WithLocation(22, 27)); 136891Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Create(s).F").WithArguments("string? C<string?>.F()", "D<string>").WithLocation(15, 13), 136894Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "x.F").WithArguments("string? C<string?>.F()", "D<string>").WithLocation(16, 13), 136897Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "y.F").WithArguments("string? C<string?>.F()", "D<string>").WithLocation(17, 13), 136900Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Create(s).F").WithArguments("string? C<string?>.F()", "D<string>").WithLocation(18, 27), 136903Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "x.F").WithArguments("string? C<string?>.F()", "D<string>").WithLocation(19, 27), 136906Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "y.F").WithArguments("string? C<string?>.F()", "D<string>").WithLocation(20, 27)); 136944Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "y.F").WithArguments("object? E.F<object?>(object? t)", "D<object>").WithLocation(17, 14), 136947Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "y.F").WithArguments("object? E.F<object?>(object? t)", "D<object>").WithLocation(21, 27)); 137142Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Create(s).F").WithArguments("string? E.F<string?>(C<string?> c)", "D<string>").WithLocation(18, 13), 137145Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "x.F").WithArguments("string? E.F<string?>(C<string?> c)", "D<string>").WithLocation(19, 13), 137148Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "y.F").WithArguments("string? E.F<string?>(C<string?> c)", "D<string>").WithLocation(20, 13), 137151Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "Create(s).F").WithArguments("string? E.F<string?>(C<string?> c)", "D<string>").WithLocation(21, 27), 137154Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "x.F").WithArguments("string? E.F<string?>(C<string?> c)", "D<string>").WithLocation(22, 27), 137157Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "y.F").WithArguments("string? E.F<string?>(C<string?> c)", "D<string>").WithLocation(23, 27)); 137227Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "x.F").WithArguments("T? E.F<T?>(T? t)", "D<T>").WithLocation(14, 22), 137230Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "x.F").WithArguments("T? E.F<T?>(T? t)", "D<T>").WithLocation(15, 26)); 137258Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "default(string).F").WithArguments("string? E.F<string?>(string? t)", "D<string>").WithLocation(10, 4)); 154528Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "f1").WithArguments("object f1()", "System.Func<object>").WithLocation(9, 27), 156106Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M1").WithArguments("CL0<string?> C.M1(CL0<string> x)", "C.D1").WithLocation(14, 24), 156112Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "M3").WithArguments("CL0<string> C.M3(CL0<string?> x)", "C.D2").WithLocation(24, 24), 156174Diagnostic(ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate, "d2").WithArguments("ref readonly string? D<string?>.Invoke()", "D<string>").WithLocation(9, 28)

344case ErrorCode.WRN_NullabilityMismatchInReturnTypeOfTargetDelegate: