dotnet/roslyn

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs.

Bernd Baumanns

@bernd5

that they are mapped to IPropertySymbol is a bit strange, but ...

I think in VB they can have names - in csharp not

Leandro T. C. Melo

@ltcmelo

@bernd5 thanks but an indexer does have a valid name

BTW, about your question @bernd5 : you could rewrite the initializer into the constructor body (prior to analysis)
I do similar things in this library https://github.com/ShiftLeftSecurity/SharpSyntaxRewriter

Bernd Baumanns

@bernd5

That is what I did - but the rewrite the symbols are different (they belong to the rewritten code ...)

@ltcmelo what is the name of an indexer?

Is "this" returned?

I would think null would be okay, too

the best is maybe to extend roslyn... I create a PR

Leandro T. C. Melo

@ltcmelo

the rewrite the symbols are different (they belong to the rewritten code ...)

correct, so what I do is to recompute the semantic model, then you get valid symbols and a correspondence

Bernd Baumanns

@bernd5

dotnet/roslyn#57576

Bernd Baumanns

@bernd5

dotnet/roslyn#57577

Bernd Baumanns

@bernd5

at least the GC is not deterministic

1 reply

but that is not a roslyn question it is a runtime question

Antonín Procházka

@prochan2

Hi, why are all the Microsoft.CodeAnalysis* NuGet packages of version 4.0.0 unlisted at NuGet.org and why there's no 4.0.0 version of Microsoft.VisualStudio.LanguageServices yet? Are these waiting for .NET Conf? It's confusing because VS 2022 is out already.

Joe4evr

@Joe4evr

probably waiting for .NETConf, yea

Bernd Baumanns

@bernd5

you can download the preview versions

https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json

But I assume the final versions will be published soon

Ryan

@ryan:chat.binarydad.com

[m]

Was anyone else having issues searching for files in any of the 2022 previews?

I would type in solution Explorer and it would never find any files

Bernd Baumanns

@bernd5

here it works

Ryan

@ryan:chat.binarydad.com

[m]

hmm...never did for me. i can ctrl+F just fine, but searching in the right under solution explorer never shows anything

ok... disregard. updated to RTM for 2022 and it seems to work...

Vyacheslav Avdeev

@lsoft

dotnet6 is here, but what's about incremental generators docs? did I miss it? the existings doc ( https://github.com/dotnet/roslyn/blob/main/docs/features/incremental-generators.md ) is obsolete even in terms of classes names...

Joe4evr

@Joe4evr

how is it that I get build errors that are not pushed to the Error List?

CyrusNajmabadi

@CyrusNajmabadi

Sounds like a bug. Please report it

Mohammad Hamdy Ghanem

@VBAndCs

Remove unused local function? This is too scary!

Bernd Baumanns

@bernd5

what is scary?

Paul M Cohen

@paul1956

For VB functions that are Event Handlers appear as unused and VS 2022 removes handles clauses sometimes so the function would be deleted.

CyrusNajmabadi

@CyrusNajmabadi

That's a bug if so. Please file.

Jon Evans

@glitch100

Morning all.

Is it still the case that debugging Roslyn Analyzers/ CodeFixProviders can only be done via the VSIX Extension project? Is it possible to debug a unit test that is written? As in step into the Analyzer code?

Joe4evr

@Joe4evr

I've always used a unit test to step into analyzer code

never heard of a VSIX project being "the only way" to debug an analyzer

Jon Evans

@glitch100

Do you use a specific helper method to invoke your Analyzer code?

Joe4evr

@Joe4evr

use the TestHelper classes that come in the template
https://github.com/Joe4evr/JiiLib/blob/master/test/JiiLib.Constraints.Tests/_Helpers/DiagnosticVerifier.Helper.cs
https://github.com/Joe4evr/JiiLib/blob/master/test/JiiLib.Constraints.Tests/_Verifiers/DiagnosticVerifier.cs
I modified them to actually use await instead of .Result

Jon Evans

@glitch100

My goodness

Antony Male

@canton7

I took that and modified it a bunch, ended up with something quite nice

https://github.com/canton7/PropertyChanged.SourceGenerator/tree/master/src/PropertyChanged.SourceGenerator.UnitTests/Framework -- some of that is application-specific, but some is general

Joe4evr

@Joe4evr

and it needs to be told which assembly to load the analyzers from + possible dependencies, so there's room for improvement

Jon Evans

@glitch100

Checking them atm - cheers all

HaloFour

@HaloFour

Reaction to VSCode?
https://blog.jetbrains.com/blog/2021/11/29/welcome-to-fleet/

Mohammad Hamdy Ghanem

@VBAndCs

I am using this extension method in c#:

    public static IEnumerator GetEnumerator(this System.ValueTuple<int, int, int> range)
    {
        int start = range.Item1;
        int end = range.Item2;
        int step = range.Item3;

        if (step > 0)
            for (int i = start; i <= end; i += step)
                yield return i;
        else
            for (int i = start; i >= end; i += step)
                yield return i;
    }

It allows me to use this code:

foreach (int i in (-10, 10, 3))
    Console.WriteLine(i);

I imported this method from C# to VB and I can also use it in for each:

Mohammad Hamdy Ghanem

@VBAndCs

But, this doesn't work:

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