dotnet/roslyn

C# - .editorconfig option for force trailing comma

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#25,206 opened on Mar 4, 2018

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Area-IDEhelp wanted

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Description

Version Used: 15.5.5

Steps to Reproduce:

enum Some {
   First,
   Second
}

Expected Behavior: I have an .editorconfig option to force developer to add comma after Second. It's useful, because it allows easy copy/paste and reordering member, and most important, when somebody else will add Third member, line with "Second" won't be changed and won't appear in comparsions.

Actual Behavior: I have no way to force to add trailing comma.

P.S. Sorry for my English not being 100% sharp.

Contributor guide

Research direction
Examine the existing implementation of .editorconfig options in the Roslyn codebase, focusing on `dotnet style *` options. Identify how they are parsed and applied to the code analysis engine. Then implement a new option `dotnet style prefer trailing comma` for enums, similar to `dotnet style prefer trailing comma for multiline declarations` but specifically for enum members.
Tech stack
csharp
Domain
developer experiencetooling
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#.NET
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50