/src/tools/syntax/tree/liberty_ast_signature.e

http://github.com/tybor/Liberty · Specman e · 73 lines · 48 code · 11 blank · 14 comment · 1 complexity · ecd8e5649add74254442161a72f764db 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_SIGNATURE
  16. inherit
  17. LIBERTY_AST_NON_TERMINAL_NODE
  18. create {LIBERTY_NODE_FACTORY}
  19. make
  20. feature {LIBERTY_AST_HANDLER}
  21. feature_names: EIFFEL_LIST_NODE is
  22. do
  23. Result ::= nodes.item(0)
  24. end
  25. has_result_type: BOOLEAN is
  26. do
  27. Result := count = 3 or else count = 6
  28. check
  29. Result implies nodes.last.name.is_equal(once "Type_Definition")
  30. end
  31. end
  32. result_type: LIBERTY_AST_TYPE_DEFINITION is
  33. require
  34. has_result_type
  35. do
  36. Result ::= nodes.last
  37. end
  38. has_parameters: BOOLEAN is
  39. do
  40. Result := count >= 4
  41. check
  42. Result implies nodes.item(2).name.is_equal(once "Declaration*")
  43. end
  44. end
  45. parameters: EIFFEL_LIST_NODE is
  46. require
  47. has_parameters
  48. do
  49. Result ::= nodes.item(2)
  50. end
  51. feature {ANY}
  52. count: INTEGER is
  53. do
  54. Result := nodes.count
  55. end
  56. name: STRING is "Signature"
  57. feature {}
  58. possible_counts: SET[INTEGER] is
  59. once
  60. Result := {AVL_SET[INTEGER] << 1, 3, 4, 6 >> }
  61. end
  62. end