avh4/elm-format

formatting is slow (~1 minute) for large (~5000 elements) lists

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#753 opened on Dec 6, 2021

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 (2 comments) (1 reaction) (0 assignees)Haskell (148 forks)batch import
help wantedperformanceupgraded-parser

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Description

While greatly improved by https://github.com/avh4/elm-format/issues/642, something is still slow for large lists. Two Elm Slack users have noted that files with ~5000 element literal lists can take more than a minute to format.

Contributor guide

Research direction
Profile the formatting function to identify slow operations when handling large list literals; consider optimizing the traversal or using a more efficient data structure.
Tech stack
haskell
Domain
toolingdeveloper experience
Issue type
Performance
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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
GitHaskell
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60