facebookexperimental/Recoil

[Q] RecoilStateInfo.subscribers.components.name is "<component name not available>"

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#1518 opened on Dec 30, 2021

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 (6 comments) (1 reaction) (0 assignees)JavaScript (19,428 stars) (1,151 forks)batch import
devtoolshelp wanted

Description

Hi there, I'm implementing some kind of devtool.

  const getInfo = useGetRecoilValueInfo_UNSTABLE();
  const info = getInfo(someAtomOrSelector);
  console.log(Array.from(info.subscribers.components));

With this code, I got something like

[
    {
        "name": "<component name not available>"
    },
    {
        "name": "<component name not available>"
    },
    {
        "name": "<component name not available>"
    }
]

It seems the count of the array is correct, but I couldn't get the components' names. All of my components are type of (...) => JSX.Element. How can I get the component name properly?

EDIT; recoil version "recoil": "^0.5.2"

Contributor guide

Tech stack
javascripttypescriptreact
Domain
frontenddeveloper experience
Issue type
research
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.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic Recoil knowledgeReact component conceptsJavaScript/TypeScriptDevtools experience
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Investigate the Recoil source code in packages/recoil/hooks/useGetRecoilValueInfo.js to trace how subscribers.components is populated. Check if component names are only available in development mode or if components must be defined with a displayName. Review existing comments in the issue for suggestions. Consider submitting a feature request to add component names or document the limitation.