/src/tools/syntax/tree/liberty_ast_parent_clause.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_AST_PARENT_CLAUSE
16
17inherit
18   LIBERTY_AST_NON_TERMINAL_NODE
19
20create {LIBERTY_NODE_FACTORY}
21   make
22
23feature {LIBERTY_AST_HANDLER}
24   has_clauses: BOOLEAN is
25      do
26         Result := count = 5
27      end
28
29   rename_clause: LIBERTY_AST_PARENT_RENAME is
30      require
31         has_clauses
32      do
33         Result ::= nodes.item(0)
34      end
35
36   export_clause: LIBERTY_AST_PARENT_EXPORT is
37      require
38         has_clauses
39      do
40         Result ::= nodes.item(1)
41      end
42
43   undefine_clause: LIBERTY_AST_PARENT_UNDEFINE is
44      require
45         has_clauses
46      do
47         Result ::= nodes.item(2)
48      end
49
50   redefine_clause: LIBERTY_AST_PARENT_REDEFINE is
51      require
52         has_clauses
53      do
54         Result ::= nodes.item(3)
55      end
56
57feature {ANY}
58   count: INTEGER is
59      do
60         Result := nodes.count
61      end
62
63   name: STRING is "Parent_Clause"
64
65feature {}
66   possible_counts: SET[INTEGER] is
67      once
68         Result := {AVL_SET[INTEGER] << 0, 1, 5 >> }
69      end
70
71end