From 1afc7dd4d33f05d58121defed88faf8fcee3df8f Mon Sep 17 00:00:00 2001
From: Jelmer Vernooij <jelmer@samba.org>
Date: Fri, 14 Sep 2007 18:06:51 +0000
Subject: [PATCH] r25166: Simplify can_contain_deferred and add tests for it.

---
 source/pidl/lib/Parse/Pidl/NDR.pm | 30 +++++++++++++-----------------
 source/pidl/tests/ndr.pl          | 17 +++++++++++++++--
 2 files changed, 28 insertions(+), 19 deletions(-)

diff --git a/source/pidl/lib/Parse/Pidl/NDR.pm b/source/pidl/lib/Parse/Pidl/NDR.pm
index 0ec4e6523b8..033217c8bfb 100644
--- a/source/pidl/lib/Parse/Pidl/NDR.pm
+++ b/source/pidl/lib/Parse/Pidl/NDR.pm
@@ -35,7 +35,7 @@ use vars qw($VERSION);
 $VERSION = '0.01';
 @ISA = qw(Exporter);
 @EXPORT = qw(GetPrevLevel GetNextLevel ContainsDeferred ContainsString);
-@EXPORT_OK = qw(GetElementLevelTable ParseElement ValidElement align_type mapToScalar ParseType);
+@EXPORT_OK = qw(GetElementLevelTable ParseElement ValidElement align_type mapToScalar ParseType can_contain_deferred);
 
 use strict;
 use Parse::Pidl qw(warning fatal);
@@ -264,7 +264,7 @@ sub GetElementLevelTable($)
 		TYPE => "DATA",
 		DATA_TYPE => $e->{TYPE},
 		IS_DEFERRED => $is_deferred,
-		CONTAINS_DEFERRED => can_contain_deferred($e),
+		CONTAINS_DEFERRED => can_contain_deferred($e->{TYPE}),
 		IS_SURROUNDING => 0 #FIXME
 	});
 
@@ -279,29 +279,25 @@ sub GetElementLevelTable($)
 sub can_contain_deferred($)
 {
 	sub can_contain_deferred($);
-	my $e = shift;
+	my ($type) = @_;
 
-	return 0 if (Parse::Pidl::Typelist::is_scalar($e->{TYPE}));
-	return 1 unless (hasType($e->{TYPE})); # assume the worst
+	return 1 unless (hasType($type)); # assume the worst
 
-	my $type = getType($e->{TYPE});
+	$type = getType($type);
+
+	return 0 if (Parse::Pidl::Typelist::is_scalar($type));
 
 	return 1 if ($type->{TYPE} eq "DECLARE"); # assume the worst
 
 	if ($type->{TYPE} eq "TYPEDEF") {
-		return 0 unless defined($type->{DATA}->{ELEMENTS});
+		return can_contain_deferred($type->{DATA});
+	} 
 
-		foreach my $x (@{$type->{DATA}->{ELEMENTS}}) {
-			return 1 if ($x->{POINTERS});
-			return 1 if (can_contain_deferred ($x));
-		}
-	} else {
-		return 0 unless defined($type->{ELEMENTS});
+	return 0 unless defined($type->{ELEMENTS});
 
-		foreach my $x (@{$type->{ELEMENTS}}) {
-			return 1 if ($x->{POINTERS});
-			return 1 if (can_contain_deferred ($x));
-		}
+	foreach my $x (@{$type->{ELEMENTS}}) {
+		return 1 if ($x->{POINTERS});
+		return 1 if (can_contain_deferred ($x));
 	}
 	
 	return 0;
diff --git a/source/pidl/tests/ndr.pl b/source/pidl/tests/ndr.pl
index 043d2b9905c..6e91ad2a6ab 100755
--- a/source/pidl/tests/ndr.pl
+++ b/source/pidl/tests/ndr.pl
@@ -4,12 +4,12 @@
 use strict;
 use warnings;
 
-use Test::More tests => 27;
+use Test::More tests => 33;
 use FindBin qw($RealBin);
 use lib "$RealBin";
 use Util;
 use Parse::Pidl::Util qw(MyDumper);
-use Parse::Pidl::NDR qw(GetElementLevelTable ParseElement align_type mapToScalar ParseType);
+use Parse::Pidl::NDR qw(GetElementLevelTable ParseElement align_type mapToScalar ParseType can_contain_deferred);
 
 # Case 1
 
@@ -253,3 +253,16 @@ $t = {
 	}
 };
 is_deeply(ParseType($t->{ORIGINAL}, "ref"), $t); 
+
+ok(not can_contain_deferred("uint32"));
+ok(can_contain_deferred("some_unknown_type"));
+ok(can_contain_deferred({ TYPE => "STRUCT", 
+		ELEMENTS => [ { TYPE => "uint32", POINTERS => 40 } ]}));
+ok(can_contain_deferred({ TYPE => "TYPEDEF", 
+			DATA => { TYPE => "STRUCT", 
+		ELEMENTS => [ { TYPE => "uint32", POINTERS => 40 } ]}}));
+ok(not can_contain_deferred({ TYPE => "STRUCT", 
+		ELEMENTS => [ { TYPE => "uint32" } ]}));
+ok(not can_contain_deferred({ TYPE => "TYPEDEF",
+			DATA => { TYPE => "STRUCT", 
+		ELEMENTS => [ { TYPE => "uint32" } ]}}));