/src/lib/backtracking/node/backtracking_node_list.e

http://github.com/tybor/Liberty · Specman e · 76 lines · 39 code · 9 blank · 28 comment · 0 complexity · 422e132d23971f7656a99612d57c23b1 MD5 · raw file

  1. -- This file is part of a Liberty Eiffel library.
  2. -- See the full copyright at the end.
  3. --
  4. deferred class BACKTRACKING_NODE_LIST
  5. --
  6. -- Node for a sequence of list of nodes
  7. --
  8. inherit
  9. BACKTRACKING_NODE
  10. undefine
  11. fill_tagged_out_memory
  12. end
  13. insert
  14. BACKTRACKING_NODE_FILL
  15. feature {ANY}
  16. node: BACKTRACKING_NODE
  17. -- first node of the list
  18. next: like Current
  19. -- remaining of the list
  20. make (nod: BACKTRACKING_NODE; nxt: like next)
  21. require
  22. value_not_void: nod /= Void
  23. do
  24. node := nod
  25. next := nxt
  26. ensure
  27. definition: node = nod and next = nxt
  28. node_not_void: node /= Void
  29. end
  30. set_node (value: BACKTRACKING_NODE)
  31. require
  32. value_not_void: value /= Void
  33. do
  34. node := value
  35. ensure
  36. definition: node = value
  37. node_not_void: node /= Void
  38. end
  39. set_next (value: like next)
  40. do
  41. next := value
  42. ensure
  43. definition: next = value
  44. end
  45. invariant
  46. node_not_void: node /= Void
  47. end -- class BACKTRACKING_NODE_LIST
  48. --
  49. -- Copyright (C) 2009-2017: by all the people cited in the AUTHORS file.
  50. --
  51. -- Permission is hereby granted, free of charge, to any person obtaining a copy
  52. -- of this software and associated documentation files (the "Software"), to deal
  53. -- in the Software without restriction, including without limitation the rights
  54. -- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  55. -- copies of the Software, and to permit persons to whom the Software is
  56. -- furnished to do so, subject to the following conditions:
  57. --
  58. -- The above copyright notice and this permission notice shall be included in
  59. -- all copies or substantial portions of the Software.
  60. --
  61. -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  62. -- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  63. -- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  64. -- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  65. -- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  66. -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  67. -- THE SOFTWARE.