     @assets.push file
     file
 
-  _change: (path, compiler, linters, isHelper) ->
+  _change: (path, compiler, linters, isHelper) =>
     ignored = @isIgnored path
     if @is 'assets', path
       unless ignored

        @compiled[path] = true
        @emit 'compiled', path

  copy: (asset) ->
    path = asset.path
    @copying[path] = true
    asset.copy (error) =>

        @compile (@find(path) ? @_add path, compiler, linters, isHelper)
      @compileDependencyParents path unless @initial

  _unlink: (path) =>
    ignored = @isIgnored path
    if @is 'assets', path
      unless ignored
