genish.js/js/switch.js

gen~ in js

'use strict'

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

let proto = {
  basename:'switch',

  gen() {
    let inputs = gen.getInputs( this ), out

    if( inputs[1] === inputs[2] ) return inputs[1] // if both potential outputs are the same just return one of them
    
    out = `  var ${this.name}_out = ${inputs[0]} === 1 ? ${inputs[1]} : ${inputs[2]}\n`

    gen.memo[ this.name ] = `${this.name}_out`

    return [ `${this.name}_out`, out ]
  },

}

module.exports = ( control, in1 = 1, in2 = 0 ) => {
  let ugen = Object.create( proto )
  Object.assign( ugen, {
    uid:     gen.getUID(),
    inputs:  [ control, in1, in2 ],
  })
  
  ugen.name = `${ugen.basename}${ugen.uid}`

  return ugen
}