1// SPDX-License-Identifier: GPL-2.0-only 2/// Find duplicate field initializations. This has a high rate of false 3/// positives due to #ifdefs, which Coccinelle is not aware of in a structure 4/// initialization. 5/// 6// Confidence: Low 7// Copyright: (C) 2010-2012 Nicolas Palix. 8// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6. 9// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6. 10// URL: https://coccinelle.gitlabpages.inria.fr/website 11// Comments: requires at least Coccinelle 0.2.4, lex or parse error otherwise 12// Options: --no-includes --include-headers 13 14virtual org 15virtual report 16 17@r@ 18identifier I, s, fld; 19position p0,p; 20expression E; 21@@ 22 23struct I s =@p0 { ..., .fld@p = E, ...}; 24 25@s@ 26identifier I, s, r.fld; 27position r.p0,p; 28expression E; 29@@ 30 31struct I s =@p0 { ..., .fld@p = E, ...}; 32 33@script:python depends on org@ 34p0 << r.p0; 35fld << r.fld; 36ps << s.p; 37pr << r.p; 38@@ 39 40if int(ps[0].line) < int(pr[0].line) or (int(ps[0].line) == int(pr[0].line) and int(ps[0].column) < int(pr[0].column)): 41 cocci.print_main(fld,p0) 42 cocci.print_secs("s",ps) 43 cocci.print_secs("r",pr) 44 45@script:python depends on report@ 46p0 << r.p0; 47fld << r.fld; 48ps << s.p; 49pr << r.p; 50@@ 51 52if int(ps[0].line) < int(pr[0].line) or (int(ps[0].line) == int(pr[0].line) and int(ps[0].column) < int(pr[0].column)): 53 msg = "%s: first occurrence line %s, second occurrence line %s" % (fld,ps[0].line,pr[0].line) 54 coccilib.report.print_report(p0[0],msg) 55