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#!/usr/bin/env perl
#
# Copyright (C) 2017-2025 Free Software Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

use warnings;
use strict;

my @lines = <>;
my %forwards = map { /^sub (\w+)\s*\((.*)\);$/ ? ("$1" => "$2") : () } @lines;
my %subs = map { /^sub (\w+)\s*\((.*)\)$/ ? ("$1" => "$2") : () } @lines;
my $error_count = 0;

# $subs{"foo"} = "$$";
# $subs{"bar"} = "@";
# $forwards{"bar"} = "\$";

# Check that every subroutine has a matching forward declaration with
# the same prototype.
foreach my $sub (keys (%subs))
  {
    # XXX: The location of the subroutine is not reported.
    if (grep { $sub eq $_ } keys (%forwards))
      {
	if ($forwards{$sub} ne $subs{$sub})
	  {
	    $error_count += 1;
	    warn ("prototype mismatch for \"$sub\" subroutine\n");
	  }
      }
    else
      {
	$error_count += 1;
	warn ("missing prototype for \"$sub\" subroutine\n");
      }
  }

exit (($error_count == 0) ? 0 : 1);
kc3-lang/automake/maintainer/check-perl-protos

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maintainer/check-perl-protos
