/src/tools/syntax/tree/liberty_ast_expression.e

http://github.com/tybor/Liberty · Specman e · 54 lines · 31 code · 9 blank · 14 comment · 0 complexity · 670f67451fff7e1f6d6e78f8404cf399 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_EXPRESSION
  16. inherit
  17. LIBERTY_AST_NON_TERMINAL_NODE
  18. create {LIBERTY_NODE_FACTORY}
  19. make
  20. feature {LIBERTY_AST_HANDLER}
  21. is_array: BOOLEAN is
  22. do
  23. Result := nodes.first.name.is_equal(once "Array")
  24. end
  25. array: LIBERTY_AST_ARRAY is
  26. require
  27. is_array
  28. do
  29. Result ::= nodes.first
  30. end
  31. no_array: LIBERTY_AST_EXPRESSION_NO_ARRAY is
  32. require
  33. not is_array
  34. do
  35. Result ::= nodes.first
  36. end
  37. feature {ANY}
  38. count: INTEGER is 1
  39. name: STRING is "Expression"
  40. feature {}
  41. possible_counts: SET[INTEGER] is
  42. once
  43. Result := {AVL_SET[INTEGER] << 1 >> }
  44. end
  45. end