/usr/lib/perl5/Devel/Declare/MethodInstaller/Simple.pm is in libdevel-declare-perl 0.006015-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | package Devel::Declare::MethodInstaller::Simple;
use base 'Devel::Declare::Context::Simple';
use Devel::Declare ();
use Sub::Name;
use strict;
use warnings;
our $VERSION = '0.006015';
sub install_methodhandler {
my $class = shift;
my %args = @_;
{
no strict 'refs';
*{$args{into}.'::'.$args{name}} = sub (&) {};
}
my $warnings = warnings::enabled("redefine");
my $ctx = $class->new(%args);
Devel::Declare->setup_for(
$args{into},
{ $args{name} => { const => sub { $ctx->parser(@_, $warnings) } } }
);
}
sub code_for {
my ($self, $name) = @_;
if (defined $name) {
my $pkg = $self->get_curstash_name;
$name = join( '::', $pkg, $name )
unless( $name =~ /::/ );
return sub (&) {
my $code = shift;
# So caller() gets the subroutine name
no strict 'refs';
my $installer = $self->warning_on_redefine
? sub { *{$name} = subname $name => $code; }
: sub { no warnings 'redefine';
*{$name} = subname $name => $code; };
$installer->();
return;
};
} else {
return sub (&) { shift };
}
}
sub install {
my ($self, $name ) = @_;
$self->shadow( $self->code_for($name) );
}
sub parser {
my $self = shift;
$self->init(@_);
$self->skip_declarator;
my $name = $self->strip_name;
my $proto = $self->strip_proto;
my $attrs = $self->strip_attrs;
my @decl = $self->parse_proto($proto);
my $inject = $self->inject_parsed_proto(@decl);
if (defined $name) {
$inject = $self->scope_injector_call() . $inject;
}
$self->inject_if_block($inject, $attrs ? "sub ${attrs} " : '');
$self->install( $name );
return;
}
sub parse_proto { '' }
sub inject_parsed_proto {
return $_[1];
}
1;
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