2507     else:

  2507     else:

  2508         return tuple(foldconcat(t) for t in tree)

  2508         return tuple(foldconcat(t) for t in tree)

  2509 

  2509 

  2510 def parse(spec, lookup=None):

  2510 def parse(spec, lookup=None):

  2511     p = parser.parser(tokenize, elements)

  2511     p = parser.parser(tokenize, elements)

  2513 

  2516 

  2514 def posttreebuilthook(tree, repo):

  2517 def posttreebuilthook(tree, repo):

  2515     # hook for extensions to execute code on the optimized tree

  2518     # hook for extensions to execute code on the optimized tree

  2516     pass

  2519     pass

  2517 

  2520 

  2519     if not spec:

  2522     if not spec:

  2520         raise error.ParseError(_("empty query"))

  2523         raise error.ParseError(_("empty query"))

  2521     lookup = None

  2524     lookup = None

  2522     if repo:

  2525     if repo:

  2523         lookup = repo.__contains__

  2526         lookup = repo.__contains__

  2527     if ui:

  2528     if ui:

  2528         tree = findaliases(ui, tree, showwarning=ui.warn)

  2529         tree = findaliases(ui, tree, showwarning=ui.warn)

  2529     tree = foldconcat(tree)

  2530     tree = foldconcat(tree)

  2530     weight, tree = optimize(tree, True)

  2531     weight, tree = optimize(tree, True)

  2531     posttreebuilthook(tree, repo)

  2532     posttreebuilthook(tree, repo)