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)
  exts = EXTENSIONS.map { |ext| details[ext] }
  query = escape_entry(File.join(@path, path))
  query + exts.map { |ext|
    "{#{ext.compact.uniq.map { |e| ".#{e}," }.join}}"
  }.join
end