/src/tools/semantics/tags/liberty_typed_tag.e

 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--
15class LIBERTY_TYPED_TAG[T_]
16
17inherit
18   LIBERTY_TAG
19
20create {LIBERTY_TAG_REF}
21   make
22
23feature {ANY}
24   id: FIXED_STRING is
25      do
26         Result := ref.id
27      end
28
29   value: T_
30
31feature {LIBERTY_TAG_REF}
32   set (a_value: like value) is
33      do
34         value := a_value
35      ensure
36         value = a_value
37      end
38
39feature {}
40   make (a_ref: like ref; a_value: like value) is
41      require
42         a_ref /= Void
43      do
44         ref := a_ref
45         value := a_value
46      ensure
47         ref = a_ref
48         value = a_value
49      end
50
51   ref: LIBERTY_TAG_REF[T_]
52
53invariant
54   ref /= Void
55
56end