/src/tools/syntax/tree/liberty_ast_require_else.e

http://github.com/tybor/Liberty · Specman e · 48 lines · 26 code · 8 blank · 14 comment · 0 complexity · 967c90360567966cac7985c184e04562 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_REQUIRE_ELSE
  16. inherit
  17. LIBERTY_AST_NON_TERMINAL_NODE
  18. create {LIBERTY_NODE_FACTORY}
  19. make
  20. feature {LIBERTY_AST_HANDLER}
  21. is_require_else: BOOLEAN is
  22. do
  23. Result := count = 2 and then nodes.last.name.is_equal(once "KW else")
  24. end
  25. is_require_then: BOOLEAN is
  26. do
  27. Result := count = 2 and then nodes.last.name.is_equal(once "KW then")
  28. end
  29. feature {ANY}
  30. count: INTEGER is
  31. do
  32. Result := nodes.count
  33. end
  34. name: STRING is "Require_Else"
  35. feature {}
  36. possible_counts: SET[INTEGER] is
  37. once
  38. Result := {AVL_SET[INTEGER] << 1, 2 >> }
  39. end
  40. end