Function sortFractionsLast

packages/tailwindcss/src/intellisense.ts:81–141

(list: ClassItem[])

}

function sortFractionsLast(list: ClassItem[]) {
  type Bucket = {
    utility: string
    items: ClassItem[]
  }

  // 1. Create "buckets" for each utility group
  let buckets: Bucket[] = []
  let current: Bucket | null = null

  // 2. Determine the last bucket for each utility group
  let lastUtilityBucket = new Map<string, Bucket>()

  // 3. Collect all fractions in a given utility group
  let fractions = new DefaultMap<string, ClassItem[]>(() => [])

  for (let item of list) {
    let { utility, fraction } = item

    if (!current) {
      current = { utility, items: [] }
      lastUtilityBucket.set(utility, current)
    }

    if (utility !== current.utility) {
      buckets.push(current)

      current = { utility, items: [] }
      lastUtilityBucket.set(utility, current)
    }

    if (fraction) {
      fractions.get(utility).push(item)
    } else {
      current.items.push(item)
    }
  }

  if (current && buckets[buckets.length - 1] !== current) {
    buckets.push(current)
  }

  // 4. Add fractions to their respective last utility buckets
  for (let [utility, items] of fractions) {
    let bucket = lastUtilityBucket.get(utility)
    if (!bucket) continue

    bucket.items.push(...items)
  }

  // 5. Flatten the buckets into a single list
  let entries: ClassEntry[] = []

  for (let bucket of buckets) {
    for (let entry of bucket.items) {
      entries.push([entry.name, { modifiers: entry.modifiers }])
    }
  }