class Sprockets::Base

def resolve(logical_path, options = {})
  # If a block is given, preform an iterable search
  if block_given?
    args = attributes_for(logical_path).search_paths + [options]
    @trail.find(*args) do |path|
      pathname = Pathname.new(path)
      if pathname.basename.to_s == 'component.json'
        component = json_decode(pathname.read)
        case component['main']
        when String
          yield pathname.dirname.join(component['main'])
        when Array
          extname = File.extname(logical_path)
          component['main'].each do |fn|
            if extname == "" || extname == File.extname(fn)
              yield pathname.dirname.join(fn)
            end
          end
        end
      else
        yield pathname
      end
    end
  else
    resolve(logical_path, options) do |pathname|
      return pathname
    end
    raise FileNotFound, "couldn't find file '#{logical_path}'"
  end
end