NSwag 14.0.1 still issues warning CS8618

[vvdb-architecture]

When compiling with 14.0.1, the generated C# sdk now has the following warning:

Warning CS8618  Non-nullable field '_baseUrl' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

That's because even though the constructor assignes BaseUrl:

            BaseUrl = "https://";

... the compiler is unable to detect that the _baseUrl field is in fact initialized through this property.

The way to get rid of the warning is to assign the field directly:

            _baseUrl = "https://";

Also, the warnings reported in issue https://github.com/RicoSuter/NSwag/issues/4467 are still there.

[AlbertWeinert-RWEST]

Yes, the pragma restore of 8616 must happens after the ctor. Not after the _baseUrl field

[powercode]

I think a better solution is to generate

 public string BaseUrl
 {
     get { return _baseUrl; }
     [System.Diagnostics.CodeAnalysis.MemberNotNull(nameof(_baseUrl))]
     set
     {
         _baseUrl = value;
         if (!string.IsNullOrEmpty(_baseUrl) && !_baseUrl.EndsWith("/"))
             _baseUrl += '/';
     }
 }

To let the compiler null analysis know that the property setter sets the field _baseUrl.

[kvansaders]

I think a better solution is to generate

 public string BaseUrl
 {
     get { return _baseUrl; }
     [System.Diagnostics.CodeAnalysis.MemberNotNull(nameof(_baseUrl))]
     set
     {
         _baseUrl = value;
         if (!string.IsNullOrEmpty(_baseUrl) && !_baseUrl.EndsWith("/"))
             _baseUrl += '/';
     }
 }

To let the compiler null analysis know that the property setter sets the field _baseUrl.

In my netstandard2.0 project, this gives: 'MemberNotNullAttribute' is inaccessible due to its protection level.

[rwb196884]

this is completely fucked in 14.0.3

Error   CS0234  The type or namespace name 'MemberNotNullAttribute' does not exist in the namespace 'System.Diagnostics.CodeAnalysis' (are you missing an assembly reference?)  

[powercode]

You should be able to reference the Nullable package as a workaround until this is fixed.

See https://github.com/manuelroemer/Nullable

[adamhathcock]

14.0.3 results in the same error as @rwb196884 reducing to 14.0.2 fixes

[AlbertWeinert-RWEST]

Yes, the pragma restore of 8616 must happens after the ctor. Not after the _baseUrl field

Or simply do this.

[nifklas]

We're also getting the error again in 14.0.3.

[mchilicki]

I also get this error in 14.0.3, on 14.0.2 it works as expected.

this is completely fucked in 14.0.3

Error CS0234  The type or namespace name 'MemberNotNullAttribute' does not exist in the namespace 'System.Diagnostics.CodeAnalysis' (are you missing an assembly reference?)