cssinjs/jss

[jss-compose] When composing from a class that takes props, the inheriting class needs props also

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#1,319 opened on Mar 22, 2020

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bughelp wanted

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Description

I have a class that takes props, when I extend it, the extension doesn't work unless the class that extends also takes props.

const useStyles = makeStyles({
  icon: props => ({ // <---------- base class
    fontSize: Number(props.size)
  }),
  successIcon: props => ({
    composes: '$icon', // This works, because it takes props, even though not using them
    color: 'green'
  }),
  failIcon: {
    composes: '$icon',  // This extension should work, but it doesn't
    color: 'red'
  }
})

React-JSS 10.1.1 Material UI 4.9.7

Contributor guide

Research direction
Investigate the `composes` function in jss compose to understand why it fails when the base class takes props but the inheriting class does not. Check if props are passed down correctly or if there's a missing condition.
Tech stack
javascriptreact
Domain
frontend
Issue type
Bug
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
CSS in JSReactJSS
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65