create-tailwind-merge.ts•1.61 kB
import { createConfigUtils } from './config-utils'
import { mergeClassList } from './merge-classlist'
import { ClassNameValue, twJoin } from './tw-join'
import { AnyConfig } from './types'
type CreateConfigFirst = () => AnyConfig
type CreateConfigSubsequent = (config: AnyConfig) => AnyConfig
type TailwindMerge = (...classLists: ClassNameValue[]) => string
type ConfigUtils = ReturnType<typeof createConfigUtils>
export function createTailwindMerge(
createConfigFirst: CreateConfigFirst,
...createConfigRest: CreateConfigSubsequent[]
): TailwindMerge {
let configUtils: ConfigUtils
let cacheGet: ConfigUtils['cache']['get']
let cacheSet: ConfigUtils['cache']['set']
let functionToCall = initTailwindMerge
function initTailwindMerge(classList: string) {
const config = createConfigRest.reduce(
(previousConfig, createConfigCurrent) => createConfigCurrent(previousConfig),
createConfigFirst() as AnyConfig,
)
configUtils = createConfigUtils(config)
cacheGet = configUtils.cache.get
cacheSet = configUtils.cache.set
functionToCall = tailwindMerge
return tailwindMerge(classList)
}
function tailwindMerge(classList: string) {
const cachedResult = cacheGet(classList)
if (cachedResult) {
return cachedResult
}
const result = mergeClassList(classList, configUtils)
cacheSet(classList, result)
return result
}
return function callTailwindMerge() {
return functionToCall(twJoin.apply(null, arguments as any))
}
}