avh4/elm-format

(not yet decided) Switch to using trailing commas

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#100 opened on Jan 6, 2016

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 (4 comments) (20 reactions) (1 assignee)Haskell (1,329 stars) (148 forks)batch import
help wanted

Description

There is a proposal to modify elm-compiler to allow trailing commas in tuples, lists and records. If implemented, the official elm style guide will likely change to prefer trailing commas instead of leading commas, and to always add the optional final comma.

Contributor guide

Tech stack
None
Domain
toolingdeveloper experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Familiarity with Elm syntaxUnderstanding of elm format internalsExperience with Haskell
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Investigate the elm format source code to understand the current formatting logic for lists, tuples, and records. Examine the Elm parser (likely in elm compiler) to see how trailing commas are currently handled. Discuss with maintainers the decision on whether to adopt trailing commas and the preferred style. Implement changes in elm format to optionally allow and format trailing commas as per the style guide.
(not yet decided) Switch to using trailing commas · avh4/elm-format#100 | Good First Issue