/src/tools/syntax/tree/liberty_ast_exp3.e

http://github.com/tybor/Liberty · Specman e · 46 lines · 26 code · 6 blank · 14 comment · 0 complexity · 0ebf5d719d1bd4bc47b896c63d24be1f 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_EXP3
  16. inherit
  17. LIBERTY_AST_EXPRESSION_BINARY[LIBERTY_AST_E3]
  18. create {LIBERTY_NODE_FACTORY}
  19. make
  20. feature {LIBERTY_AST_HANDLER}
  21. is_and_then: BOOLEAN is
  22. do
  23. Result := count = 4
  24. check
  25. Result implies nodes.item(1).name.is_equal(once "KW and")
  26. Result implies nodes.item(2).name.is_equal(once "KW then")
  27. end
  28. ensure
  29. Result implies not is_empty
  30. end
  31. is_and: BOOLEAN is
  32. do
  33. Result := count = 3
  34. check
  35. Result implies nodes.item(1).name.is_equal(once "KW and")
  36. end
  37. end
  38. feature {ANY}
  39. name: STRING is "e3-exp"
  40. end