- if parameter.values.any?
  = haml :enumeration, locals: { parameter: parameter, disabled: true }
- else
  - placeholder = parameter.required ? 'required' : nil
  - if parameter.type == :array
    - name = "#{parameter.name}[]"
  - else
    - name = "#{parameter.name}[hash]"
    - placeholder = "key=value"
  %input.hidden{ disabled: true, type: 'text', name: name, placeholder: placeholder }

%input.add{ type: 'button', value: 'Add', class: parameter.type }
%input.remove.hidden{ type: 'button', value: 'Remove', class: parameter.type }