1// SPDX-License-Identifier: GPL-2.0-only
2/// These iterators only exit normally when the loop cursor is NULL, so there
3/// is no point to call of_node_put on the final value.
4///
5// Confidence: High
6// Copyright: (C) 2010-2012 Nicolas Palix.
7// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
8// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
9// URL: http://coccinelle.lip6.fr/
10// Comments:
11// Options: --no-includes --include-headers
12
13virtual patch
14virtual context
15virtual org
16virtual report
17
18@depends on patch@
19iterator name for_each_node_by_name;
20expression np,E;
21identifier l;
22@@
23
24for_each_node_by_name(np,...) {
25  ... when != break;
26      when != goto l;
27}
28... when != np = E
29- of_node_put(np);
30
31@depends on patch@
32iterator name for_each_node_by_type;
33expression np,E;
34identifier l;
35@@
36
37for_each_node_by_type(np,...) {
38  ... when != break;
39      when != goto l;
40}
41... when != np = E
42- of_node_put(np);
43
44@depends on patch@
45iterator name for_each_compatible_node;
46expression np,E;
47identifier l;
48@@
49
50for_each_compatible_node(np,...) {
51  ... when != break;
52      when != goto l;
53}
54... when != np = E
55- of_node_put(np);
56
57@depends on patch@
58iterator name for_each_matching_node;
59expression np,E;
60identifier l;
61@@
62
63for_each_matching_node(np,...) {
64  ... when != break;
65      when != goto l;
66}
67... when != np = E
68- of_node_put(np);
69
70// ----------------------------------------------------------------------
71
72@r depends on !patch forall@
73//iterator name for_each_node_by_name;
74//iterator name for_each_node_by_type;
75//iterator name for_each_compatible_node;
76//iterator name for_each_matching_node;
77expression np,E;
78identifier l;
79position p1,p2;
80@@
81
82(
83*for_each_node_by_name@p1(np,...)
84{
85  ... when != break;
86      when != goto l;
87}
88|
89*for_each_node_by_type@p1(np,...)
90{
91  ... when != break;
92      when != goto l;
93}
94|
95*for_each_compatible_node@p1(np,...)
96{
97  ... when != break;
98      when != goto l;
99}
100|
101*for_each_matching_node@p1(np,...)
102{
103  ... when != break;
104      when != goto l;
105}
106)
107... when != np = E
108* of_node_put@p2(np);
109
110@script:python depends on org@
111p1 << r.p1;
112p2 << r.p2;
113@@
114
115cocci.print_main("unneeded of_node_put",p2)
116cocci.print_secs("iterator",p1)
117
118@script:python depends on report@
119p1 << r.p1;
120p2 << r.p2;
121@@
122
123msg = "ERROR: of_node_put not needed after iterator on line %s" % (p1[0].line)
124coccilib.report.print_report(p2[0], msg)
125