Function makeChunk

packages/effect/src/Chunk.ts:217–258

(backing: Backing<A>)

}

const makeChunk = <A>(backing: Backing<A>): Chunk<A> => {
  const chunk = Object.create(ChunkProto)
  chunk.backing = backing
  switch (backing._tag) {
    case "IEmpty": {
      chunk.length = 0
      chunk.depth = 0
      chunk.left = chunk
      chunk.right = chunk
      break
    }
    case "IConcat": {
      chunk.length = backing.left.length + backing.right.length
      chunk.depth = 1 + Math.max(backing.left.depth, backing.right.depth)
      chunk.left = backing.left
      chunk.right = backing.right
      break
    }
    case "IArray": {
      chunk.length = backing.array.length
      chunk.depth = 0
      chunk.left = _empty
      chunk.right = _empty
      break
    }
    case "ISingleton": {
      chunk.length = 1
      chunk.depth = 0
      chunk.left = _empty
      chunk.right = _empty
      break
    }
    case "ISlice": {
      chunk.length = backing.length
      chunk.depth = backing.chunk.depth + 1
      chunk.left = _empty
      chunk.right = _empty
      break
    }
  }
  return chunk
}

/**
 * Checks whether `u` is a `Chunk<unknown>`