[Proposal]: #pragma warning *enable*

[jcouv]

#pragma warning enable

• [x] Proposed
• [ ] Prototype: Not Started
• [ ] Implementation: Not Started
• [ ] Specification: Not Started

Summary

During our work on nullability in C# 8, we added support for #pragma warning enable ... as the mechanism to enable nullable warnings. Since we shipped with #nullable enable ... instead, we disabled that code with the intention to revisit later.

Motivation

Detailed design

Drawbacks

Alternatives

Unresolved questions

Design meetings

• LDM notes on disabling #pragma warning enable ... in C# 8 timeframe: https://github.com/dotnet/csharplang/blob/7a42cf7d947082d73b4b5d92badbc21a860b652f/meetings/2019/LDM-2019-05-13.md#removing-support-for-pragma-warning-enable-
• Relates to https://github.com/dotnet/roslyn/issues/36550 (roslyn issue to remove disabled code)
• https://github.com/dotnet/csharplang/blob/main/meetings/2022/LDM-2022-08-31.md#pragma-warning-enable
• https://github.com/dotnet/csharplang/blob/main/meetings/2022/LDM-2022-09-28.md#ungrouped

[333fred]

This proposal was rejected by the LDM: https://github.com/dotnet/csharplang/blob/main/meetings/2022/LDM-2022-09-28.md#ungrouped.