147 lines
3.6 KiB
Perl
147 lines
3.6 KiB
Perl
package Perl::PrereqScanner::NotQuiteLite::Parser::ClassLoad;
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use strict;
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use warnings;
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use Perl::PrereqScanner::NotQuiteLite::Util;
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my %known_functions = map {$_ => 1} qw/
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load_class try_load_class load_optional_class
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load_first_existing_class
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/;
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sub register { return {
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use => {
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'Class::Load' => 'parse_class_load_args',
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},
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}}
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sub register_fqfn { return {
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map { "Class::Load::".$_ => "parse_".$_."_args" }
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keys %known_functions
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}}
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sub parse_class_load_args {
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my ($class, $c, $used_module, $raw_tokens) = @_;
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my $tokens = convert_string_tokens($raw_tokens);
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if (is_version($tokens->[0])) {
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$c->add($used_module => shift @$tokens);
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}
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for my $token (@$tokens) {
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next if ref $token;
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if ($known_functions{$token}) {
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$c->register_keyword_parser(
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$token,
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[$class, 'parse_'.$token.'_args', $used_module],
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);
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} elsif ($token eq ':all') {
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for my $func (keys %known_functions) {
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$c->register_keyword_parser(
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$func,
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[$class, 'parse_'.$func.'_args', $used_module],
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);
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}
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}
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}
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}
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sub parse_load_class_args {
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my ($class, $c, $used_module, $raw_tokens) = @_;
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my $tokens = convert_string_tokens($raw_tokens);
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shift @$tokens; # function
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my ($module, undef, $options) = @$tokens;
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my $version = 0;
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if (ref $options and $options->[1] eq '{}') {
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my $tokens_in_hashref = convert_string_tokens($options->[0]);
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while(my ($key, undef, $value, undef) = splice @$tokens_in_hashref, 0, 4) {
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if (ref $key and $key->[0] eq '-version' and is_version($value)) {
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$version = $value;
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}
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}
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}
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$c->add_conditional($module => $version);
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}
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sub parse_try_load_class_args {
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my ($class, $c, $used_module, $raw_tokens) = @_;
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my $tokens = convert_string_tokens($raw_tokens);
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shift @$tokens; # function
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my ($module, undef, $options) = @$tokens;
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my $version = 0;
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if (ref $options and $options->[1] eq '{}') {
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my $tokens_in_hashref = convert_string_tokens($options->[0]);
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while(my ($key, undef, $value, undef) = splice @$tokens_in_hashref, 0, 4) {
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if (ref $key and $key->[0] eq '-version' and is_version($value)) {
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$version = $value;
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}
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}
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}
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$c->add_suggestion($module => $version);
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}
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sub parse_load_optional_class_args {
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my ($class, $c, $used_module, $raw_tokens) = @_;
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$class->parse_try_load_class_args($c, $used_module, $raw_tokens);
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}
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sub parse_load_first_existing_class_args {
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my ($class, $c, $used_module, $raw_tokens) = @_;
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my $tokens = convert_string_tokens($raw_tokens);
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shift @$tokens; # function
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my ($module, $version);
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for my $token (@$tokens) {
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if (is_module_name($token)) {
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if ($module) {
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$c->add_suggestion($module => $version);
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}
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$module = $token;
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$version = 0;
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next;
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}
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if (ref $token and ($token->[1] || '') eq '{}') {
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my $tokens_in_hashref = convert_string_tokens($token->[0]);
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while(my ($key, undef, $value, undef) = splice @$tokens_in_hashref, 0, 4) {
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if (ref $key and $key->[0] eq '-version' and is_version($value)) {
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$version = $value;
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}
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}
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}
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}
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if ($module) {
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$c->add_suggestion($module => $version);
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}
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}
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1;
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__END__
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=encoding utf-8
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=head1 NAME
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Perl::PrereqScanner::NotQuiteLite::Parser::ClassLoad
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=head1 DESCRIPTION
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This parser is to deal with module loading by C<Class::Load>.
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=head1 AUTHOR
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Kenichi Ishigaki, E<lt>ishigaki@cpan.orgE<gt>
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=head1 COPYRIGHT AND LICENSE
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This software is copyright (c) 2017 by Kenichi Ishigaki.
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This is free software; you can redistribute it and/or modify it under
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the same terms as the Perl 5 programming language system itself.
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=cut
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