@dbl0null/slow-json-stringify/src/sjs.mjs

The slow.. well actually fastest JSON stringifier in the galaxy.

import { _makeChunks } from './_makeChunks.mjs'
import { _makeQueue } from './_makeQueue.mjs'
import { _prepare } from './_prepare.mjs'
import { _select } from './_select.mjs'
import { attr, escape } from './_utils.mjs'

// Doing a lot of preparation work before returning the final function responsible for
// the stringification.
const sjs = schema => {
  const { _preparedString, _preparedSchema } = _prepare(schema)

  // Providing preparedSchema for univocal correspondence between created queue and chunks.
  // Provided original schema to keep track of the original properties that gets destroied
  // during schema preparation => e.g. array stringification method.
  const queue = _makeQueue(_preparedSchema, schema)
  const chunks = _makeChunks(_preparedString, queue)
  const selectChunk = _select(chunks)

  // Exposed function
  return obj => {
    let temp = ''

    for (let i = 0; i < queue.length; ++i) {
      const { serializer, find } = queue[i]
      const raw = find(obj)

      temp += selectChunk(serializer(raw), i)
    }

    const { flag, pure, prevUndef } = chunks[chunks.length - 1]

    return temp + (flag ? prevUndef : pure)
  }
}

export { sjs, attr, escape }