@skele/classic/src/transform/impl.js

Skele is an architectural framework that assists with building data-driven apps with React or React Native.

'use strict'

import * as R from 'ramda'

import { data, zip, registry } from '@skele/core'
const memoize = registry.memoize

const { postWalk, root } = zip
const { flow, kindOf } = data

export function transformer(registry, elementZipper) {
  const elementTransformer = memoize(kind =>
    registry
      .get(kind)
      .reduce((f, g) => (x, context) => g(f(x, context), context), R.identity)
  )

  const transform = context => el => elementTransformer(kindOf(el))(el, context)

  return (el, context = {}) =>
    flow(
      el,
      elementZipper,
      postWalk(transform(context)),
      root
    )
}