Function sortClassList

src/sorting.ts:95–143

({
  classList,
  api,
  removeDuplicates,
}: {
  classList: string[]
  api: UnifiedApi
  removeDuplicates: boolean
})

}

export function sortClassList({
  classList,
  api,
  removeDuplicates,
}: {
  classList: string[]
  api: UnifiedApi
  removeDuplicates: boolean
}) {
  // Re-order classes based on the Tailwind CSS configuration
  let orderedClasses = api.getClassOrder(classList)

  orderedClasses.sort(([nameA, a], [nameZ, z]) => {
    // Move `...` to the end of the list
    if (nameA === '...' || nameA === '…') return 1
    if (nameZ === '...' || nameZ === '…') return -1

    if (a === z) return 0
    if (a === null) return -1
    if (z === null) return 1
    return bigSign(a - z)
  })

  // Remove duplicate Tailwind classes
  let removedIndices = new Set<number>()

  if (removeDuplicates) {
    let seenClasses = new Set<string>()

    orderedClasses = orderedClasses.filter(([cls, order], index) => {
      if (seenClasses.has(cls)) {
        removedIndices.add(index)
        return false
      }

      // Only consider known classes when removing duplicates
      if (order !== null) {
        seenClasses.add(cls)
      }

      return true
    })
  }

  return {
    classList: orderedClasses.map(([className]) => className),
    removedIndices,
  }
}