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###################################################
# Samba4 parser generator for IDL structures
# Copyright tridge@samba.org 2000-2004
# Copyright jelmer@samba.org 2004
# released under the GNU GPL
package needed;
use strict;
# the list of needed functions
my %needed;
sub NeededFunction($)
{
my $fn = shift;
$needed{"pull_$fn->{NAME}"} = 1;
$needed{"push_$fn->{NAME}"} = 1;
foreach my $e (@{$fn->{DATA}}) {
$e->{PARENT} = $fn;
$needed{"pull_$e->{TYPE}"} = 1;
$needed{"push_$e->{TYPE}"} = 1;
}
}
sub NeededTypedef($)
{
my $t = shift;
if (util::has_property($t->{DATA}, "public")) {
$needed{"pull_$t->{NAME}"} = 1;
$needed{"push_$t->{NAME}"} = 1;
}
if ($t->{DATA}->{TYPE} eq "STRUCT") {
if (util::has_property($t->{DATA}, "gensize")) {
$needed{"ndr_size_$t->{NAME}"} = 1;
}
for my $e (@{$t->{DATA}->{ELEMENTS}}) {
$e->{PARENT} = $t->{DATA};
if ($needed{"pull_$t->{NAME}"}) {
$needed{"pull_$e->{TYPE}"} = 1;
}
if ($needed{"push_$t->{NAME}"}) {
$needed{"push_$e->{TYPE}"} = 1;
}
if ($needed{"ndr_size_$t->{NAME}"}) {
$needed{"ndr_size_$e->{TYPE}"} = 1;
}
}
}
if ($t->{DATA}->{TYPE} eq "UNION") {
for my $e (@{$t->{DATA}->{DATA}}) {
$e->{PARENT} = $t->{DATA};
if ($e->{TYPE} eq "UNION_ELEMENT") {
if ($needed{"pull_$t->{NAME}"}) {
$needed{"pull_$e->{DATA}->{TYPE}"} = 1;
}
if ($needed{"push_$t->{NAME}"}) {
$needed{"push_$e->{DATA}->{TYPE}"} = 1;
}
if ($needed{"ndr_size_$t->{NAME}"}) {
$needed{"ndr_size_$e->{DATA}->{TYPE}"} = 1;
}
}
}
}
}
#####################################################################
# work out what parse functions are needed
sub BuildNeeded($)
{
my($interface) = shift;
my($data) = $interface->{DATA};
foreach my $d (@{$data}) {
($d->{TYPE} eq "FUNCTION") &&
NeededFunction($d);
}
foreach my $d (reverse @{$data}) {
($d->{TYPE} eq "TYPEDEF") &&
NeededTypedef($d);
}
}
sub is_needed($)
{
my $name = shift;
return $needed{$name};
}
1;
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