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#!/usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0
#
# checkdeclares: find struct declared more than once
#
# Copyright 2021 Wan Jiabing<wanjiabing@vivo.com>
# Inspired by checkincludes.pl
#
# This script checks for duplicate struct declares.
# Note that this will not take into consideration macros so
# you should run this only if you know you do have real dups
# and do not have them under #ifdef's.
# You could also just review the results.
use strict;
sub usage {
print "Usage: checkdeclares.pl file1.h ...\n";
print "Warns of struct declaration duplicates\n";
exit 1;
}
if ($#ARGV < 0) {
usage();
}
my $dup_counter = 0;
foreach my $file (@ARGV) {
open(my $f, '<', $file)
or die "Cannot open $file: $!.\n";
my %declaredstructs = ();
while (<$f>) {
if (m/^\s*struct\s*(\w*);$/o) {
++$declaredstructs{$1};
}
}
close($f);
foreach my $structname (keys %declaredstructs) {
if ($declaredstructs{$structname} > 1) {
print "$file: struct $structname is declared more than once.\n";
++$dup_counter;
}
}
}
if ($dup_counter == 0) {
print "No duplicate struct declares found.\n";
}
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