function visit()

in composer.js [121:133]

• 13 lines of code
• 6 McCabe index (conditional complexity)

function visit (composition, f) {
  composition = Object.assign({}, composition) // copy
  const combinator = composition['.combinator']()
  if (combinator.components) {
    composition.components = composition.components.map(f)
  }
  for (let arg of combinator.args || []) {
    if (arg.type === undefined && composition[arg.name] !== undefined) {
      composition[arg.name] = f(composition[arg.name], arg.name)
    }
  }
  return new Composition(composition)
}