class ActionView::OptimizedFileSystemResolver

:nodoc:
An Optimized resolver for Rails’ most common case.

def build_query(path, details)

:nodoc:
An Optimized resolver for Rails' most common case. 
def build_query(path, details)
  query = escape_entry(File.join(@path, path))
  exts = EXTENSIONS.map do |ext, prefix|
    "{#{details[ext].compact.uniq.map { |e| "#{prefix}#{e}," }.join}}"
  end.join
  query + exts
end