IDE0060 (unused param) with NotImplementedException

[LWChris]

This has been requested earlier as #41236.

I'm not sure but it looks like

• this should've been solved with PR Do not report unused parameters for trivial throw-only methods #42408
• that PR should've been shipped with 16.6.P2

I have 16.11.2, but still see this issue.

So either this is broken again, it never worked, or there's a side-case where the fix doesn't work.

My project has net5.0-windows10.0.17763 as target framework.

[CyrusNajmabadi]

@LWChris can you supply a repro project? Pointing to a git repo at a particular commit would be helpful.

[LWChris]

@CyrusNajmabadi Sure, but this is literally just an empty project with one method in it:

https://github.com/LWChris/IDE0060_NET5/tree/762dd94f3a02ae25120a8a956b621fd01432eb51

I found that the error toggles in and out of existence.

Sometimes, the error disappears, but cutting and pasting the method makes it re-appear. Sometimes it disappears if you change something unrelated (e. g. add, rename or delete a completely unrelated class), or if you add a second method, that one does not have the message.

Seems like the surpression doesn't work reliably. VS is 16.11.3 now.

[CyrusNajmabadi]

Tagging @mavasani

[mavasani]

Based on the last comment, it seems likely to be an issue with the solution crawler or error list, rather then the analyzer itself. I'll take a look.