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/src/tools/syntax/tree/liberty_ast_actual.e

http://github.com/tybor/Liberty
Specman e | 68 lines | 44 code | 10 blank | 14 comment | 0 complexity | 8747be80dfcadfb7d2835491f35ea4a2 MD5 | raw file
 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_ACTUAL
16
17inherit
18   LIBERTY_AST_NON_TERMINAL_NODE
19
20create {LIBERTY_NODE_FACTORY}
21   make
22
23feature {LIBERTY_AST_HANDLER}
24   is_expression: BOOLEAN is
25      do
26         Result := count = 1
27         check
28            Result = nodes.first.name.is_equal(once "Expression")
29         end
30      end
31
32   is_ref_to_entity: BOOLEAN is
33      do
34         Result := count = 2
35         check
36            Result = nodes.first.name.is_equal(once "KW $")
37         end
38      end
39
40   expression: LIBERTY_AST_EXPRESSION is
41      require
42         is_expression
43      do
44         Result ::= nodes.item(0)
45      end
46
47   ref_entity_name: LIBERTY_AST_ENTITY_NAME is
48      require
49         is_ref_to_entity
50      do
51         Result ::= nodes.item(1)
52      end
53
54feature {ANY}
55   count: INTEGER is
56      do
57         Result := nodes.count
58      end
59
60   name: STRING is "Actual"
61
62feature {}
63   possible_counts: SET[INTEGER] is
64      once
65         Result := {AVL_SET[INTEGER] << 1, 2 >> }
66      end
67
68end