conductor/wrap.js

A modern & functional JavaScript utility library

const compose = require('./src/compose')

const apply = fn => args => fn(...args)

const parseFnDef = def => {
  const limit = def.indexOf('=')
  const output = def.substring(limit)
  return eval(
    def.substring(0, limit) + output.replace('(', '[').replace(')', ']')
  )
}

const wrap = fn =>
  new Proxy(fn, {
    get(obj, transformation) {
      const definition = transformation.toString()
      const tf = parseFnDef(definition)
      return compose(
        apply(fn),
        tf
      )
    },
  })

module.exports = wrap