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Text File  |  1999-06-05  |  5KB  |  166 lines
  1. --          This file is part of SmallEiffel The GNU Eiffel Compiler.
  2. --          Copyright (C) 1994-98 LORIA - UHP - CRIN - INRIA - FRANCE
  3. --            Dominique COLNET and Suzanne COLLIN - colnet@loria.fr
  4. --                       http://SmallEiffel.loria.fr
  5. -- SmallEiffel is  free  software;  you can  redistribute it and/or modify it
  6. -- under the terms of the GNU General Public License as published by the Free
  7. -- Software  Foundation;  either  version  2, or (at your option)  any  later
  8. -- version. SmallEiffel is distributed in the hope that it will be useful,but
  9. -- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  10. -- or  FITNESS FOR A PARTICULAR PURPOSE.   See the GNU General Public License
  11. -- for  more  details.  You  should  have  received a copy of the GNU General
  12. -- Public  License  along  with  SmallEiffel;  see the file COPYING.  If not,
  13. -- write to the  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  14. -- Boston, MA 02111-1307, USA.
  15. --
  16. class E_ENSURE
  17.    --
  18.    -- To store a `ensure' clause.
  19.    --
  20.  
  21. inherit ASSERTION_LIST;
  22.  
  23. creation make, make_runnable
  24.  
  25. feature
  26.  
  27.    is_ensure_then: BOOLEAN;
  28.  
  29. feature
  30.  
  31.    name: STRING is
  32.       do
  33.          if is_ensure_then then
  34.             Result := "ensure then";
  35.          else
  36.             Result := "ensure";
  37.          end;
  38.       end;
  39.  
  40.    c_declare_for_old is
  41.          -- Produce C declarations for `old' expressions.
  42.       local
  43.          i: INTEGER;
  44.       do
  45.          if list /= Void then
  46.             from
  47.                i := list.lower;
  48.             until
  49.                i > list.upper
  50.             loop
  51.                list.item(i).c_declare_for_old;
  52.                i := i + 1;
  53.             end;
  54.          end;
  55.       end;
  56.  
  57.    compile_to_c_old is
  58.          -- Initialization for `old' expressions.
  59.       local
  60.          i: INTEGER;
  61.       do
  62.          if list /= Void then
  63.             from
  64.                i := list.lower;
  65.             until
  66.                i > list.upper
  67.             loop
  68.                list.item(i).compile_to_c_old;
  69.                i := i + 1;
  70.             end;
  71.          end;
  72.       end;
  73.  
  74.    compile_to_jvm_old is
  75.          -- If needed, add some more local variable to store the
  76.          -- result of Eiffel "old".
  77.       local
  78.          i: INTEGER;
  79.       do
  80.          if list /= Void then
  81.             from
  82.                i := list.lower;
  83.             until
  84.                i > list.upper
  85.             loop
  86.                list.item(i).compile_to_jvm_old;
  87.                i := i + 1;
  88.             end;
  89.          end;
  90.       end;
  91.  
  92.    short is
  93.       local
  94.          i: INTEGER;
  95.       do
  96.          short_print.hook_or("hook511","      ensure%N");
  97.          if header_comment = Void then
  98.             short_print.hook_or("hook512","");
  99.          else
  100.             short_print.hook_or("hook513","");
  101.             header_comment.short("hook514","         -- ","hook515","%N");
  102.             short_print.hook_or("hook516","");
  103.          end;
  104.          if list = Void then
  105.             short_print.hook_or("hook517","");
  106.          else
  107.             short_print.hook_or("hook518","");
  108.             from
  109.                i := 1;
  110.             until
  111.                i = list.upper
  112.             loop
  113.                list.item(i).short("hook519","         ", -- before each assertion
  114.                                   "hook520","", -- no tag
  115.                                   "hook521","", -- before tag
  116.                                   "hook522",": ", -- after tag
  117.                                   "hook523","", -- no expression
  118.                                   "hook524","", -- before expression
  119.                                   "hook525",";", -- after expression except last
  120.                                   "hook526","%N", -- no comment
  121.                                   "hook527","", -- before comment
  122.                                   "hook528"," -- ", -- comment begin line
  123.                                   "hook529","%N", -- comment end of line
  124.                                   "hook530","", -- after comment
  125.                                   "hook531",""); -- end of each assertion
  126.  
  127.                i := i + 1;
  128.             end;
  129.             list.item(i).short("hook519","         ", -- before each assertion
  130.                                "hook520","", -- no tag
  131.                                "hook521","", -- before tag
  132.                                "hook522",": ", -- after tag
  133.                                "hook523","", -- no expression
  134.                                "hook524","", -- before expression
  135.                                "hook532","", -- after expression except last
  136.                                "hook526","%N", -- no comment
  137.                                "hook527","", -- before comment
  138.                                "hook528"," -- ", -- comment begin line
  139.                                "hook529","%N", -- comment end of line
  140.                                "hook530","", -- after comment
  141.                                "hook531","");
  142.             short_print.hook_or("hook533","");
  143.          end;
  144.          short_print.hook_or("hook534","");
  145.       ensure
  146.          fmt.indent_level = old fmt.indent_level;
  147.       end;
  148.  
  149. feature {EIFFEL_PARSER}
  150.  
  151.    set_ensure_then is
  152.       do
  153.          is_ensure_then := true;
  154.       end;
  155.  
  156.  
  157. feature {NONE}
  158.  
  159.    check_assertion_mode: STRING is
  160.       do
  161.          Result := "ens";
  162.       end;
  163.  
  164. end -- E_ENSURE
  165.  
  166.