1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2004-2008 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
22 var a
: nullable A
= new A
23 var b
: nullable A
= null
24 if a
== null then printn
(0) else printn
(1)
25 if a
is null then printn
(0) else printn
(1)
26 #if b == null then printn(1) else printn(0)
27 if b
is null then printn
(1) else printn
(0)
28 if a
== a
then printn
(1) else printn
(0)
29 if a
is a
then printn
(1) else printn
(0)
30 #if b == b then printn(1) else printn(0)
31 if b
is b
then printn
(1) else printn
(0)
32 if a
== b
then printn
(0) else printn
(1)
33 if a
is b
then printn
(0) else printn
(1)
34 #if b == a then printn(0) else printn(1)
35 if b
is a
then printn
(0) else printn
(1)