/src/tools/syntax/tree/liberty_ast_e9.e

http://github.com/tybor/Liberty · Specman e · 55 lines · 33 code · 8 blank · 14 comment · 1 complexity · 0932c425f84d098976cb5616cd8baa13 MD5 · raw file

  1. -- This file is part of Liberty Eiffel.
  2. --
  3. -- Liberty Eiffel is free software: you can redistribute it and/or modify
  4. -- it under the terms of the GNU General Public License as published by
  5. -- the Free Software Foundation, version 3 of the License.
  6. --
  7. -- Liberty Eiffel is distributed in the hope that it will be useful,
  8. -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  10. -- GNU General Public License for more details.
  11. --
  12. -- You should have received a copy of the GNU General Public License
  13. -- along with Liberty Eiffel. If not, see <http://www.gnu.org/licenses/>.
  14. --
  15. class LIBERTY_AST_E9
  16. inherit
  17. LIBERTY_AST_NON_TERMINAL_NODE
  18. create {LIBERTY_NODE_FACTORY}
  19. make
  20. feature {LIBERTY_AST_HANDLER}
  21. has_old: BOOLEAN is
  22. do
  23. Result := count = 2
  24. check
  25. Result = nodes.first.name.is_equal(once "KW old")
  26. end
  27. end
  28. e10: LIBERTY_AST_E10 is
  29. do
  30. if has_old then
  31. Result ::= nodes.item(1)
  32. else
  33. Result ::= nodes.item(0)
  34. end
  35. end
  36. feature {ANY}
  37. count: INTEGER is
  38. do
  39. Result := nodes.count
  40. end
  41. name: STRING is "e9"
  42. feature {}
  43. possible_counts: SET[INTEGER] is
  44. once
  45. Result := {AVL_SET[INTEGER] << 1, 2 >> }
  46. end
  47. end