/src/tools/configuration/etc/liberty_etc_version_constraint.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_ETC_VERSION_CONSTRAINT
16
17inherit
18   LIBERTY_ETC_CONSTRAINT
19
20create {LIBERTY_ETC_VISITOR_IMPL}
21   make
22
23feature {ANY}
24   check_validity (a_cluster: LIBERTY_ETC_CLUSTER) is
25      do
26         if not operator.item([a_cluster.version, version]) then
27            std_error.put_line("*** Version mismatch: " + a_cluster.name
28                               + " version " + a_cluster.version + " not compatible")
29            die_with_code(1)
30         end
31      end
32
33feature {}
34   make (a_operator: like operator; a_version: like version) is
35      require
36         a_operator /= Void
37         a_version /= Void
38      do
39         operator := a_operator
40         version := a_version
41      ensure
42         operator = a_operator
43         version = a_version
44      end
45
46   operator: PREDICATE[TUPLE[FIXED_STRING, FIXED_STRING]]
47   version: FIXED_STRING
48
49invariant
50   operator /= Void
51   version /= Void
52
53end