tailwindcss/src/jit/lib/normalizeTailwindDirectives.js
Adam Wathan 1849e35f14 Refactor internals to decouple watch strategies and extract IO
Co-authored-by: Robin Malfait <malfait.robin@gmail.com>
2021-05-26 09:43:05 -04:00

70 lines
2.3 KiB
JavaScript

export default function normalizeTailwindDirectives(root) {
let tailwindDirectives = new Set()
let layerDirectives = new Set()
root.walkAtRules((atRule) => {
if (atRule.name === 'import') {
if (atRule.params === '"tailwindcss/base"' || atRule.params === "'tailwindcss/base'") {
atRule.name = 'tailwind'
atRule.params = 'base'
} else if (
atRule.params === '"tailwindcss/components"' ||
atRule.params === "'tailwindcss/components'"
) {
atRule.name = 'tailwind'
atRule.params = 'components'
} else if (
atRule.params === '"tailwindcss/utilities"' ||
atRule.params === "'tailwindcss/utilities'"
) {
atRule.name = 'tailwind'
atRule.params = 'utilities'
} else if (
atRule.params === '"tailwindcss/screens"' ||
atRule.params === "'tailwindcss/screens'" ||
atRule.params === '"tailwindcss/variants"' ||
atRule.params === "'tailwindcss/variants'"
) {
atRule.name = 'tailwind'
atRule.params = 'variants'
}
}
if (atRule.name === 'tailwind') {
if (atRule.params === 'screens') {
atRule.params = 'variants'
}
tailwindDirectives.add(atRule.params)
}
if (['layer', 'responsive', 'variants'].includes(atRule.name)) {
layerDirectives.add(atRule)
}
})
if (
!tailwindDirectives.has('base') ||
!tailwindDirectives.has('components') ||
!tailwindDirectives.has('utilities')
) {
for (let rule of layerDirectives) {
if (rule.name === 'layer' && ['base', 'components', 'utilities'].includes(rule.params)) {
if (!tailwindDirectives.has(rule.params)) {
throw rule.error(
`\`@layer ${rule.params}\` is used but no matching \`@tailwind ${rule.params}\` directive is present.`
)
}
} else if (rule.name === 'responsive') {
if (!tailwindDirectives.has('utilities')) {
throw rule.error('`@responsive` is used but `@tailwind utilities` is missing.')
}
} else if (rule.name === 'variants') {
if (!tailwindDirectives.has('utilities')) {
throw rule.error('`@variants` is used but `@tailwind utilities` is missing.')
}
}
}
}
return tailwindDirectives
}