/usr/share/perl5/ExtUtils/XSpp/Driver.pm is in libextutils-xspp-perl 0.1800-2.
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 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | package ExtUtils::XSpp::Driver;
use strict;
use warnings;
use File::Basename ();
use File::Path ();
use ExtUtils::XSpp::Parser;
sub new {
my( $class, %args ) = @_;
my $self = bless \%args, $class;
return $self;
}
sub generate {
my( $self ) = @_;
foreach my $typemap ( $self->typemaps ) {
ExtUtils::XSpp::Parser->new( file => $typemap )->parse;
}
my $parser = ExtUtils::XSpp::Parser->new( file => $self->file,
string => $self->string,
);
my $success = $parser->parse;
return() if not $success;
my $generated = $self->_emit( $parser );
my $typemap_code = ExtUtils::XSpp::Typemap::get_xs_typemap_code_for_all_typemaps();
if (defined $typemap_code && $typemap_code =~ /\S/) {
if (exists $generated->{'-'} and $generated->{'-'} ne '') {
$generated->{'-'} = $typemap_code . $generated->{'-'};
}
elsif (my @files = grep !/^-$/, keys %$generated) {
$generated->{$files[0]} = $typemap_code . ($generated->{$files[0]}||'');
}
else {
$generated->{'-'} = $typemap_code . ($generated->{'-'}||'');
}
}
return $generated;
}
sub process {
my( $self ) = @_;
my $generated = $self->generate;
return () if not $generated;
return $self->_write( $generated );
}
sub _write {
my( $self, $out ) = @_;
foreach my $f ( keys %$out ) {
if( $f eq '-' ) {
if( $self->xsubpp ) {
require IPC::Open2;
my $cmd = $self->xsubpp . ' ' . ( $self->xsubpp_args || '' )
. ' -';
my $pid = IPC::Open2::open2( '>&STDOUT', my $fh, $cmd );
print $fh $$out{$f} or die "Error writing to xsubpp: $!";
close $fh or die "Error writing to xsubpp: $!";
waitpid( $pid, 0 );
my $exit_code = $? >> 8;
return 0 if $exit_code;
} else {
print $$out{$f} or die "Error writing output";
}
} else {
File::Path::mkpath( File::Basename::dirname( $f ) );
open my $fh, '>', $f or die "open '$f': $!";
binmode $fh;
print $fh $$out{$f} or die "Error writing to '$f': $!";
close $fh or die "close '$f': $!";
}
}
return 1;
}
sub _emit {
my( $self, $parser ) = @_;
my $data = $parser->get_data;
my %out;
my $out_file = '-';
my %state = ( current_module => undef );
foreach my $plugin ( @{$parser->post_process_plugins} ) {
my $method = $plugin->{method};
$plugin->{plugin}->$method( $data );
}
$out{'-'} = preamble();
foreach my $e ( @$data ) {
if( $e->isa( 'ExtUtils::XSpp::Node::Module' ) ) {
$state{current_module} = $e;
}
if( $e->isa( 'ExtUtils::XSpp::Node::File' ) ) {
$out_file = $e->file;
$out{$out_file} ||= preamble();
}
$out{$out_file} .= $e->print( \%state );
}
return \%out;
}
sub preamble {
return <<EOT
#include <exception>
#undef xsp_constructor_class
#define xsp_constructor_class(c) (c)
EOT
}
sub typemaps { @{$_[0]->{typemaps} || []} }
sub file { $_[0]->{file} }
sub string { $_[0]->{string} }
sub output { $_[0]->{output} }
sub xsubpp { $_[0]->{xsubpp} }
sub xsubpp_args { $_[0]->{xsubpp_args} }
1;
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