@ybouhjira/eslint-plugin-hyperkit

ESLint plugin for HyperKit component library - enforce HyperKit best practices and theme usage.

Installation

pnpm add -D @ybouhjira/eslint-plugin-hyperkit

Usage

Add to your ESLint configuration:

import hyperkit from '@ybouhjira/eslint-plugin-hyperkit';

export default [
  {
    plugins: {
      hyperkit,
    },
    rules: {
      'hyperkit/no-hardcoded-colors': 'error',
      'hyperkit/no-hardcoded-font-size': 'error',
      'hyperkit/no-hardcoded-spacing': 'warn',
      'hyperkit/no-important': 'error',
      'hyperkit/require-keyed-show': 'error',
      'hyperkit/no-props-assign-outside-jsx': 'error',
    },
  },
];

Rules

no-hardcoded-colors

Detects hardcoded color values in JSX inline styles and suggests using HyperKit theme variables.

Invalid:

<div style={{ color: '#fff' }} />
<div style={{ backgroundColor: 'rgb(255, 0, 0)' }} />
<div style={{ borderColor: 'red' }} />

Valid:

<div style={{ color: 'var(--sk-text-primary)' }} />
<div style={{ backgroundColor: 'transparent' }} />
<div style={{ color: 'inherit' }} />

no-hardcoded-font-size

Detects hardcoded font sizes in JSX inline styles and suggests using HyperKit theme variables.

Invalid:

<div style={{ fontSize: '14px' }} />
<div style={{ fontSize: '1.2rem' }} />

Valid:

<div style={{ fontSize: 'var(--sk-font-size-base)' }} />
<div style={{ fontSize: 'inherit' }} />

Suggestions:

• 12px → var(--sk-font-size-xs)
• 14px → var(--sk-font-size-sm)
• 16px → var(--sk-font-size-base)
• 18px → var(--sk-font-size-lg)
• 20px → var(--sk-font-size-xl)
• 24px → var(--sk-font-size-2xl)

no-hardcoded-spacing

Detects hardcoded spacing values in JSX inline styles (severity: warn by default).

Invalid:

<div style={{ padding: '16px' }} />
<div style={{ margin: '8px 16px' }} />
<div style={{ gap: '1rem' }} />

Valid:

<div style={{ padding: 'var(--sk-space-md)' }} />
<div style={{ margin: '0' }} />
<div style={{ padding: 'auto' }} />

no-important

Detects !important in inline style values.

Invalid:

<div style={{ color: 'red !important' }} />
<div style={{ display: 'none !important' }} />

Valid:

<div style={{ color: 'var(--sk-text-primary)' }} />

require-keyed-show

Detects <Show> components with render callback children but without keyed prop.

Invalid:

<Show when={condition()}>{(item) => <div>{item}</div>}</Show>
<Show when={data()}>{(d) => <span>{d.name}</span>}</Show>

Valid:

<Show when={condition()} keyed>{(item) => <div>{item}</div>}</Show>
<Show when={isVisible()}><div>Static content</div></Show>

no-props-assign-outside-jsx

Detects assigning props.x to a const/let/var outside of a reactive scope, which breaks SolidJS reactivity.

Invalid:

function Comp(props) {
  const x = props.foo;
  return <div />;
}

function Comp(props) {
  const x = props.foo || props.bar;
  return <div />;
}

function Comp(props) {
  const { foo, bar } = props;
  return <div />;
}

Valid:

function Comp(props) {
  const x = () => props.foo;
  return <div />;
}

function Comp(props) {
  return <div>{props.foo}</div>;
}

function Comp(props) {
  createMemo(() => props.foo);
  return <div />;
}

Development

# Install dependencies
pnpm install

# Run tests
pnpm test

# Watch mode
pnpm test:watch

License

ISC