class ActionView::TemplateDetails

def format_or_default
  format || handler_class.try(:default_format)
end

def handler_class
  Template.handler_for_extension(handler)
end

def initialize(locale, handler, format, variant)
  @locale = locale
  @handler = handler
  @format = format
  @variant = variant
end

def matches?(requested)
  requested.formats_idx[@format] &&
    requested.locale_idx[@locale] &&
    requested.variants_idx[@variant] &&
    requested.handlers_idx[@handler]
end

def sort_key_for(requested)
  [
    requested.formats_idx[@format],
    requested.locale_idx[@locale],
    requested.variants_idx[@variant],
    requested.handlers_idx[@handler]
  ]
end