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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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