genish.js/js/add.js

gen~ in js

'use strict'

const gen = require('./gen.js')

const proto = { 
  basename:'add',
  gen() {
    let inputs = gen.getInputs( this ),
        out='',
        sum = 0, numCount = 0, adderAtEnd = false, alreadyFullSummed = true

    if( inputs.length === 0 ) return 0

    out = `  var ${this.name} = `

    inputs.forEach( (v,i) => {
      if( isNaN( v ) ) {
        out += v
        if( i < inputs.length -1 ) {
          adderAtEnd = true
          out += ' + '
        }
        alreadyFullSummed = false
      }else{
        sum += parseFloat( v )
        numCount++
      }
    })

    if( numCount > 0 ) {
      out += adderAtEnd || alreadyFullSummed ? sum : ' + ' + sum
    }

    out += '\n'

    gen.memo[ this.name ] = this.name

    return [ this.name, out ]
  }
}

module.exports = ( ...args ) => {
  const add = Object.create( proto )
  add.id = gen.getUID()
  add.name = add.basename + add.id
  add.inputs = args

  return add
}