Initial Commit

database/perl/lib/Perl/PrereqScanner/NotQuiteLite/Parser/ClassAccessor.pm

@@ -0,0 +1,92 @@
+package Perl::PrereqScanner::NotQuiteLite::Parser::ClassAccessor;
+
+use strict;
+use warnings;
+use Perl::PrereqScanner::NotQuiteLite::Util;
+
+sub register {{
+  use => {
+    'Class::Accessor'           => 'parse_class_accessor_args',
+    'Class::Accessor::Fast'     => 'parse_class_accessor_args',
+    'Class::Accessor::Faster'   => 'parse_class_accessor_args',
+    'Class::XSAccessor::Compat' => 'parse_class_accessor_args',
+  }
+}}
+
+sub parse_class_accessor_args {
+  my ($class, $c, $used_module, $raw_tokens) = @_;
+
+  my $tokens = convert_string_tokens($raw_tokens);
+  if (is_version($tokens->[0])) {
+    $c->add($used_module => shift @$tokens);
+  }
+  while(my $token = shift @$tokens) {
+    if ($token =~ /^(?:antlers|moose-?like)$/i) {
+      $c->register_keyword_parser(
+        'extends',
+        [$class, 'parse_extends_args', $used_module],
+      );
+      last;
+    }
+  }
+}
+
+sub parse_extends_args {
+  my ($class, $c, $used_module, $raw_tokens) = @_;
+
+  my $tokens = convert_string_tokens($raw_tokens);
+  shift @$tokens; # discard extends, with;
+
+  my $prev;
+  for my $token (@$tokens) {
+    if (!ref $token) {
+      $c->add($token => 0);
+      $prev = $token;
+      next;
+    }
+    my $desc = $token->[1] || '';
+    if ($desc eq '{}') {
+      my @hash_tokens = @{$token->[0] || []};
+      for(my $i = 0, my $len = @hash_tokens; $i < $len; $i++) {
+        if ($hash_tokens[$i][0] eq '-version' and $i < $len - 2) {
+          my $maybe_version_token = $hash_tokens[$i + 2];
+          my $maybe_version = $maybe_version_token->[0];
+          if (ref $maybe_version) {
+            $maybe_version = $maybe_version->[0];
+          }
+          if ($prev and is_version($maybe_version)) {
+            $c->add($prev => $maybe_version);
+          }
+        }
+      }
+    }
+  }
+}
+
+1;
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+Perl::PrereqScanner::NotQuiteLite::Parser::ClassAccessor
+
+=head1 DESCRIPTION
+
+This parser is to deal with modules loaded by C<extends>
+from L<Class::Accessor> and its friends.
+
+=head1 AUTHOR
+
+Kenichi Ishigaki, E<lt>ishigaki@cpan.orgE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+This software is copyright (c) 2017 by Kenichi Ishigaki.
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+=cut