srid/lvar

Add `getListeners`

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#2 opened on Mar 19, 2022

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good first issue

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Description

Add a new function to retrieve the list of current listeners (originally added using addListener):

getListeners :: MonadIO m => LVar a -> m [ListenerId]

Contributor guide

Research direction
Examine the existing 'addListener' implementation to understand how listeners are stored, then implement 'getListeners' to retrieve the list.
Tech stack
None
Domain
backend
Issue type
Feature
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.
Under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
HaskellGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75