/usr/local/CPAN/CORBA-XS/CORBA/XS/StubPerlVisitor.pm

• package CORBA::XS::StubPerlVisitor
  • new
  • visitSpecification
  • visitRegularInterface
  • visitAbstractInterface
  • visitOperation
• EOF

#
#           Interface Definition Language (OMG IDL CORBA v3.0)
#

package CORBA::XS::StubPerlVisitor;

use strict;
use warnings;

our $VERSION = '0.62';

use CORBA::Perl::CdrVisitor;
use base qw(CORBA::Perl::CdrVisitor);

use File::Basename;
use POSIX qw(ctime);

# needs $node->{pl_name} $node->{pl_package} (PerlNameVisitor)

sub new {
    my $proto = shift;
    my $class = ref($proto) || $proto;
    my $self = {};
    bless $self, $class;
    my($parser, $pkg_prefix) = @_;
    $self->{parser} = $parser;
    $self->{parser}->YYData->{modules} = [];
    $self->{srcname} = $parser->YYData->{srcname};
    $self->{srcname_size} = $parser->YYData->{srcname_size};
    $self->{srcname_mtime} = $parser->YYData->{srcname_mtime};
    $self->{symbtab} = $parser->YYData->{symbtab};
    $self->{client} = 1;
    $self->{use} = {};
    if ($pkg_prefix) {
        $self->{pkg_prefix} = $pkg_prefix;
        $self->{pkg_prefix} =~ s/\//::/g;
        $self->{pkg_prefix} .= '::';
    }
    else {
        $self->{pkg_prefix} = q{};
    }
    my $filename = basename($self->{srcname}, '.idl') . '.pm';
    $self->open_stream($filename);
    $self->{done_hash} = {};
    $self->{has_methods} = 0;
    $self->{pkg_modif} = 0;
    $self->{stringify} = 1;
    $self->{id} = 0;
    $self->{num_key} = 'num_pl_stub';
    return $self;
}

#
#   3.5     OMG IDL Specification
#

sub visitSpecification {
    my $self = shift;
    my($node) = @_;
    my $filename = basename($self->{srcname}, '.idl');
    my $FH = $self->{out};
    $self->{pkg_modif} = 0;
    print $FH "# ex: set ro:\n";
    print $FH "#   This file was generated (by ",$0,"). DO NOT modify it.\n";
    print $FH "# From file : ",$self->{srcname},", ",$self->{srcname_size}," octets, ",POSIX::ctime($self->{srcname_mtime});
    print $FH "\n";
    print $FH "use strict;\n";
    print $FH "\n";
    print $FH "# Preloaded methods go here.\n";
    print $FH "\n";
    print $FH "package main;\n";
    print $FH "\n";
    print $FH "use CORBA::Perl::CORBA;\n";
    print $FH "use Carp;\n";
    print $FH "\n";
    if (exists $node->{list_import}) {
        foreach (@{$node->{list_import}}) {
            $_->visit($self);
        }
    }
    foreach (@{$node->{list_decl}}) {
        $self->_get_defn($_)->visit($self);
        if ($self->{pkg_modif}) {
            $self->{pkg_modif} = 0;
            print $FH "package main;\n";
            print $FH "\n";
        }
    }
    if ($self->{has_methods}) {
        print $FH "package ",$filename,";\n";
        print $FH "\n";
        print $FH "use strict;\n";
        print $FH "use warnings;\n";
        print $FH "\n";
        print $FH "require DynaLoader;\n";
        print $FH "\n";
        print $FH "our \@ISA = qw(DynaLoader);\n";
        print $FH "\n";
        print $FH "our \$VERSION = '0.01';\n";
        print $FH "\n";
        print $FH "bootstrap ",$filename," \$VERSION;\n";
        print $FH "\n";
    }
    print $FH "1;\n";
    print $FH "\n";
    print $FH "#   end of file : ",$self->{filename},"\n";
    print $FH "\n";
    print $FH "# Local variables:\n";
    print $FH "#   buffer-read-only: t\n";
    print $FH "# End:\n";
    close $FH;
}

#
#   3.7     Module Declaration          (inherited)
#

#
#   3.8     Interface Declaration
#

sub visitRegularInterface {
    my $self = shift;
    my($node) = @_;
    if ($self->{srcname} eq $node->{filename}) {
        my $version;
        my $FH = $self->{out};
        $self->{pkg_modif} = 0;
        print $FH "#\n";
        print $FH "#   begin of interface ",$node->{pl_package},"\n";
        print $FH "#\n";
        print $FH "\n";
        print $FH "package ",$node->{pl_package},";\n";
        print $FH "\n";
        print $FH "use CORBA::Perl::CORBA;\n";
        print $FH "use Carp;\n";
        print $FH "\n";
        foreach (@{$node->{list_decl}}) {
            my $defn = $self->_get_defn($_);
            if (       $defn->isa('Operation')
                    or $defn->isa('Attributes') ) {
                next;
            }
            $defn->visit($self);
            if ($self->{pkg_modif}) {
                $self->{pkg_modif} = 0;
                print $FH "package ",$defn->{pl_package},";\n";
                print $FH "\n";
            }
        }
        print $FH "\n";
        if (keys %{$node->{hash_attribute_operation}}) {
            $self->{itf} = $node->{pl_name};
            $self->{repos_id} = $node->{repos_id};
            print $FH "######  methodes\n";
            print $FH "\n";
            print $FH "# constructor\n";
            print $FH "sub new {\n";
            print $FH "\tmy \$proto = shift;\n";
            print $FH "\tmy \$class = ref(\$proto) || \$proto;\n";
            print $FH "\tmy \$self = {};\n";
            print $FH "\tbless \$self, \$class;\n";
            print $FH "\tmy \$this = shift;\n";
            print $FH "\t\$self->{_this} = \$this || 0;\n";
            print $FH "\treturn \$self;\n";
            print $FH "}\n";
            print $FH "\n";
            foreach (values %{$node->{hash_attribute_operation}}) {
                $self->_get_defn($_)->visit($self);
            }
            print $FH "\n";
        }
        print $FH "#\n";
        print $FH "#   end of interface ",$node->{pl_package},"\n";
        print $FH "#\n";
        print $FH "\n";
        $self->{pkg_modif} = 1;
    }
    else {
        $self->_insert_use($node->{filename});
    }
}

sub visitAbstractInterface {
    my $self = shift;
    my($node) = @_;
    if ($self->{srcname} eq $node->{filename}) {
        my $version;
        my $FH = $self->{out};
        print $FH "#\n";
        print $FH "#   begin of abstract interface ",$node->{pl_package},"\n";
        print $FH "#\n";
        print $FH "\n";
        print $FH "package ",$node->{pl_package},";\n";
        print $FH "\n";
        print $FH "use CORBA::Perl::CORBA;\n";
        print $FH "use Carp;\n";
        print $FH "\n";
        foreach (@{$node->{list_decl}}) {
            my $defn = $self->_get_defn($_);
            if (       $defn->isa('Operation')
                    or $defn->isa('Attributes') ) {
                next;
            }
            $defn->visit($self);
        }
        print $FH "\n";
        print $FH "#\n";
        print $FH "#   end of abstract interface ",$node->{pl_package},"\n";
        print $FH "#\n";
        print $FH "\n";
        $self->{pkg_modif} = 1;
    }
    else {
        $self->_insert_use($node->{filename});
    }
}

#
#   3.9     Value Declaration           (inherited)
#

#
#   3.10    Constant Declaration        (inherited)
#

#
#   3.11    Type Declaration            (inherited)
#

#
#   3.12    Exception Declaration       (inherited)
#

#
#   3.13    Operation Declaration
#

sub visitOperation {
    my $self = shift;
    my($node) = @_;
    $self->{has_methods} = 1;
    my $FH = $self->{out};
    print $FH "# ",$self->{itf},"::",$node->{pl_name},"\n";
    print $FH "sub ",$node->{pl_name}," {\n";
    print $FH "\tmy \$self = shift;\n";
    print $FH "\tmy \$_this = 0;\n";
    print $FH "\t\$_this = \$self->{_this} if (ref \$self and \$self->isa('",$node->{pl_package},"'));\n";
    foreach (@{$node->{list_param}}) {      # paramater
        if ($_->{attr} eq 'in') {
            print $FH "\tmy \$",$_->{pl_name}," = shift;\n";
            print $FH "\tcroak \"undefined parameter '",$_->{pl_name},"' in '",$node->{pl_name},"'.\\n\"\n";
            print $FH "\t\t\tunless (defined \$",$_->{pl_name},");\n";
        }
        if ($_->{attr} eq 'inout') {
            print $FH "\tmy \$r_",$_->{pl_name}," = shift;\n";
            print $FH "\tcroak \"undefined parameter '",$_->{pl_name},"' in '",$node->{pl_name},"'.\\n\"\n";
            print $FH "\t\t\tunless (defined \$r_",$_->{pl_name},");\n";
        }
    }
    print $FH "\n";
    print $FH "\tmy \$_is = q{};\n";
    foreach (@{$node->{list_param}}) {      # paramater
        my $type = $self->_get_defn($_->{type});
        if    ($_->{attr} eq 'in') {
            print $FH "\t",$type->{pl_package},"::",$type->{pl_name},"__marshal";
                print $FH "(\\\$_is,\$",$_->{pl_name},");\n";
        }
        elsif ($_->{attr} eq 'inout') {
            print $FH "\t",$type->{pl_package},"::",$type->{pl_name},"__marshal";
                print $FH "(\\\$_is,\${\$r_",$_->{pl_name},"});\n";
        }
    }
    print $FH "\tmy \$_os = '';\n"
            unless (exists $node->{modifier});
    print $FH "\n";
    if (exists $node->{modifier}) {     # oneway
        print $FH "\t",$node->{pl_package},"::cdr_",$node->{pl_name},"(\$_this,\$_is);\n";
    }
    else {
        print $FH "\tmy \$_ret = ",$node->{pl_package},"::cdr_",$node->{pl_name},"(\$_this,\$_is,\$_os);\n";
        print $FH "\tif (\$_ret <= 0) {\n";
        print $FH "\t\tthrow CORBA::Perl::CORBA::SystemException(\n";
        print $FH "\t\t\t\t_repos_id => 'IDL:CORBA/NO_MEMORY:1.0',\n";
        print $FH "\t\t\t\tminor     => 3,\n";
        print $FH "\t\t\t\tcompleted => CORBA::Perl::CORBA::COMPLETED_MAYBE\n";
        print $FH "\t\t);\n";
        print $FH "\t}\n";
        print $FH "\tmy \$_offset = 0;\n";
        print $FH "\tmy \$_endian = 1;\n";
        print $FH "\tmy \$_status = CORBA::Perl::CORBA::exception_type__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
        print $FH "\tif      (\$_status eq CORBA::Perl::CORBA::NO_EXCEPTION) {\n";
        my $nb = 0;
        my $type = $self->_get_defn($node->{type});
        unless ($type->isa('VoidType')) {
            print $FH "\t\tmy \$_return = ";
                print $FH $type->{pl_package},"::",$type->{pl_name};
                print $FH "__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
            $nb ++;
        }
        foreach (@{$node->{list_param}}) {      # paramater
            $type = $self->_get_defn($_->{type});
            if (       $_->{attr} eq 'inout'
                    or $_->{attr} eq 'out' ) {
                print $FH "\t\tmy \$",$_->{pl_name}," = ";
                    print $FH $type->{pl_package},"::",$type->{pl_name};
                    print $FH "__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
                $nb ++ if ($_->{attr} eq 'out');
            }
        }
        foreach (@{$node->{list_param}}) {      # paramater
            if ($_->{attr} eq 'inout') {
                print $FH "\t\t\${\$r_",$_->{pl_name},"} = \$",$_->{pl_name},";\n";
            }
        }
        print $FH "\t\treturn";
        print $FH " " if ($nb > 0);
        print $FH "(" if ($nb > 1);
        my $first = 1;
        $type = $self->_get_defn($node->{type});
        unless ($type->isa('VoidType')) {
            print $FH "\$_return";
            $first = 0;
        }
        foreach (@{$node->{list_param}}) {      # paramater
            if ($_->{attr} eq 'out') {
                print $FH ", " unless ($first);
                print $FH "\$",$_->{pl_name};
                $first = 0;
            }
        }
        print $FH ")" if ($nb > 1);
        print $FH ";\n";
        print $FH "\t}\n";
        print $FH "\telsif (\$_status eq CORBA::Perl::CORBA::USER_EXCEPTION) {\n";
        print $FH "\t\tmy \$_exception_id = CORBA::Perl::CORBA::string__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
        print $FH "\t\tif (0) {\n";
        foreach (@{$node->{list_raise}}) {
            my $defn = $self->_get_defn($_);
            print $FH "\t\t}\n";
            print $FH "\t\telsif (\$_exception_id eq \"",$defn->{repos_id},"\") {\n";
            print  $FH "\t\t\tmy \$_value = ";
                print $FH $defn->{pl_package},"::",$defn->{pl_name};
                print $FH "__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
            print $FH "\t\t\tthrow ",$defn->{pl_package},"::",$defn->{pl_name},"(\n";
            print $FH "\t\t\t\t\t_repos_id => \$_exception_id,\n";
            print $FH "\t\t\t\t\t\%{\$_value}\n";
            print $FH "\t\t\t);\n";
        }
        print $FH "\t\t}\n";
        print $FH "\t\telse {\n";
        print $FH "\t\t\twarn \"unknown user exception \$_exception_id.\\n\";\n";
        print $FH "\t\t}\n";
        print $FH "\t}\n";
        print $FH "\telsif (\$_status eq CORBA::Perl::CORBA::SYSTEM_EXCEPTION) {\n";
        print $FH "\t\tmy \$_exception_id = CORBA::Perl::CORBA::string__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
        print $FH "\t\tmy \$_minor_code_value = CORBA::Perl::CORBA::unsigned_long__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
        print $FH "\t\tmy \$_completion_status = CORBA::Perl::CORBA::completion_status__demarshal(\\\$_os,\\\$_offset,\$_endian);\n";
        print $FH "\t\tthrow CORBA::Perl::CORBA::SystemException(\n";
        print $FH "\t\t\t\t_repos_id => \$_exception_id,\n";
        print $FH "\t\t\t\tminor     => \$_minor_code_value,\n";
        print $FH "\t\t\t\tcompleted => \$_completion_status\n";
        print $FH "\t\t);\n";
        print $FH "\t}\n";
        print $FH "\telse {\n";
        print $FH "\t\twarn \"reply status \$_status.\\n\";\n";
        print $FH "\t}\n";
    }
    print $FH "}\n";
    print $FH "\n";
}

#
#   3.14    Attribute Declaration       (inherited)
#

1;