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|
package Perl::PrereqScanner::NotQuiteLite::Parser::ClassLoad;
use strict;
use warnings;
use Perl::PrereqScanner::NotQuiteLite::Util;
my %known_functions = map {$_ => 1} qw/
load_class try_load_class load_optional_class
load_first_existing_class
/;
sub register { return {
use => {
'Class::Load' => 'parse_class_load_args',
},
}}
sub register_fqfn { return {
map { "Class::Load::".$_ => "parse_".$_."_args" }
keys %known_functions
}}
sub parse_class_load_args {
my ($class, $c, $used_module, $raw_tokens) = @_;
my $tokens = convert_string_tokens($raw_tokens);
if (is_version($tokens->[0])) {
$c->add($used_module => shift @$tokens);
}
for my $token (@$tokens) {
next if ref $token;
if ($known_functions{$token}) {
$c->register_keyword_parser(
$token,
[$class, 'parse_'.$token.'_args', $used_module],
);
} elsif ($token eq ':all') {
for my $func (keys %known_functions) {
$c->register_keyword_parser(
$func,
[$class, 'parse_'.$func.'_args', $used_module],
);
}
}
}
}
sub parse_load_class_args {
my ($class, $c, $used_module, $raw_tokens) = @_;
my $tokens = convert_string_tokens($raw_tokens);
shift @$tokens; # function
my ($module, undef, $options) = @$tokens;
my $version = 0;
if (ref $options and $options->[1] eq '{}') {
my $tokens_in_hashref = convert_string_tokens($options->[0]);
while(my ($key, undef, $value, undef) = splice @$tokens_in_hashref, 0, 4) {
if (ref $key and $key->[0] eq '-version' and is_version($value)) {
$version = $value;
}
}
}
$c->add_conditional($module => $version);
}
sub parse_try_load_class_args {
my ($class, $c, $used_module, $raw_tokens) = @_;
my $tokens = convert_string_tokens($raw_tokens);
shift @$tokens; # function
my ($module, undef, $options) = @$tokens;
my $version = 0;
if (ref $options and $options->[1] eq '{}') {
my $tokens_in_hashref = convert_string_tokens($options->[0]);
while(my ($key, undef, $value, undef) = splice @$tokens_in_hashref, 0, 4) {
if (ref $key and $key->[0] eq '-version' and is_version($value)) {
$version = $value;
}
}
}
$c->add_suggestion($module => $version);
}
sub parse_load_optional_class_args {
my ($class, $c, $used_module, $raw_tokens) = @_;
$class->parse_try_load_class_args($c, $used_module, $raw_tokens);
}
sub parse_load_first_existing_class_args {
my ($class, $c, $used_module, $raw_tokens) = @_;
my $tokens = convert_string_tokens($raw_tokens);
shift @$tokens; # function
my ($module, $version);
for my $token (@$tokens) {
if (is_module_name($token)) {
if ($module) {
$c->add_suggestion($module => $version);
}
$module = $token;
$version = 0;
next;
}
if (ref $token and ($token->[1] || '') eq '{}') {
my $tokens_in_hashref = convert_string_tokens($token->[0]);
while(my ($key, undef, $value, undef) = splice @$tokens_in_hashref, 0, 4) {
if (ref $key and $key->[0] eq '-version' and is_version($value)) {
$version = $value;
}
}
}
}
if ($module) {
$c->add_suggestion($module => $version);
}
}
1;
__END__
=encoding utf-8
=head1 NAME
Perl::PrereqScanner::NotQuiteLite::Parser::ClassLoad
=head1 DESCRIPTION
This parser is to deal with module loading by C<Class::Load>.
=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
|
