Initial Commit

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

@@ -0,0 +1,85 @@
+package Perl::PrereqScanner::NotQuiteLite::Parser::PackageVariant;
+
+use strict;
+use warnings;
+use Perl::PrereqScanner::NotQuiteLite::Util;
+
+sub register {{
+  use => {
+    'Package::Variant' => 'parse_package_variant_args',
+  },
+}}
+
+sub parse_package_variant_args {
+  my ($class, $c, $used_module, $raw_tokens) = @_;
+
+  my $tokens = convert_string_tokens($raw_tokens);
+
+  while(my $token = shift @$tokens) {
+    if (ref $token and $token->[0] eq 'importing') {
+      shift @$tokens if @$tokens && $tokens->[0][1] eq 'COMMA';
+      my $next_token = shift @$tokens or last;
+      if (!ref $next_token) {
+        my $module = $next_token;
+        if (is_module_name($module)) {
+          $c->add($module);
+          if ($c->has_callback_for(use => $module)) {
+            $c->run_callback_for('use', $module, [["use", "KEYWORD"], [$module, "WORD"], [";", ";"]]);
+          }
+        }
+      }
+      elsif ($next_token->[1] eq '[]') {
+        my $modules = convert_string_token_list($next_token->[0]);
+        while(my $module = shift @$modules) {
+          next unless is_module_name($module);
+          $c->add($module);
+          if ($c->has_callback_for(use => $module)) {
+            $c->run_callback_for('use', $module, [["use", "KEYWORD"], [$module, "WORD"], [";", ";"]]);
+          }
+        }
+      } elsif ($next_token->[1] eq '{}') {
+        my $hash_tokens = convert_string_token_list($next_token->[0]);
+        while(my $module = shift @$hash_tokens) {
+          my $arg = shift @$hash_tokens;
+          my @args = $arg->[1] eq '[]' ? @{$arg->[0]} : $arg;
+          $c->add($module);
+          if ($c->has_callback_for(use => $module)) {
+            $c->run_callback_for('use', $module, [["use", "KEYWORD"], [$module, "WORD"], @args, [";", ";"]]);
+          }
+        }
+      }
+    }
+    elsif (ref $token && !ref $token->[0] && $token->[1] eq 'WORD') {
+      shift @$tokens if @$tokens && $tokens->[0][1] eq 'COMMA';
+      shift @$tokens if @$tokens;
+    }
+    shift @$tokens if @$tokens && ref $tokens->[0] && $tokens->[0][1] eq 'COMMA';
+  }
+}
+
+1;
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+Perl::PrereqScanner::NotQuiteLite::Parser::PackageVariant
+
+=head1 DESCRIPTION
+
+This parser is to deal with modules loaded by L<Package::Variant>.
+
+=head1 AUTHOR
+
+Kenichi Ishigaki, E<lt>ishigaki@cpan.orgE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+This software is copyright (c) 2018 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