dotnet/runtime

Add an editorconfig option to supress LibraryImport suggestion for blittable PInvokes

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#111,593 opened on Jan 19, 2025

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 (6 comments) (3 reactions) (0 assignees)C# (5,445 forks)batch import
area-Interop-coreclrcode-analyzerhelp wanted

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Description

The current LibraryImport analyzer always suggests to convert to it from DllImport, even when it's not necessary due to the signature being blittable. This is especially annoying when multitargeting with older TFMs without LibraryImport. As discussed on Discord, there should be an option to opt out of this with an editorconfig switch.

cc @jkoritzinsky @tannergooding

Contributor guide

Research direction
Investigate the LibraryImport analyzer to understand how it suggests conversions and where to add an editorconfig option to disable the suggestion for blittable PInvokes.
Tech stack
csharp
Domain
backendtooling
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C#EditorConfig
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50