1 /*
 2  * Copyright (c) 2019, 2023, Oracle and/or its affiliates. All rights reserved.
 3  *  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  *  This code is free software; you can redistribute it and/or modify it
 6  *  under the terms of the GNU General Public License version 2 only, as
 7  *  published by the Free Software Foundation.
 8  *
 9  *  This code is distributed in the hope that it will be useful, but WITHOUT
10  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  *  version 2 for more details (a copy is included in the LICENSE file that
13  *  accompanied this code).
14  *
15  *  You should have received a copy of the GNU General Public License version
16  *  2 along with this work; if not, write to the Free Software Foundation,
17  *  Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  *   Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  *  or visit www.oracle.com if you need additional information or have any
21  *  questions.
22  *
23  */
24 
25 /*
26  * @test
27  * @enablePreview
28  * @run testng TestTypeAccess
29  */
30 
31 import java.lang.foreign.Arena;
32 import java.lang.foreign.MemorySegment;
33 import java.lang.foreign.ValueLayout;
34 import org.testng.annotations.*;
35 
36 import java.lang.invoke.VarHandle;
37 import java.lang.invoke.WrongMethodTypeException;
38 
39 public class TestTypeAccess {
40 
41     static final VarHandle INT_HANDLE = ValueLayout.JAVA_INT.varHandle();
42     static final VarHandle ADDR_HANDLE = ValueLayout.ADDRESS.varHandle();
43 
44     @Test(expectedExceptions=ClassCastException.class)
45     public void testMemoryAddressCoordinateAsString() {
46         int v = (int)INT_HANDLE.get("string");
47     }
48 
49     @Test(expectedExceptions=WrongMethodTypeException.class)
50     public void testMemoryCoordinatePrimitive() {
51         int v = (int)INT_HANDLE.get(1);
52     }
53 
54     @Test(expectedExceptions=ClassCastException.class)
55     public void testMemoryAddressValueGetAsString() {
56         try (Arena arena = Arena.ofConfined()) {
57             MemorySegment s = arena.allocate(8, 8);;
58             String address = (String)ADDR_HANDLE.get(s);
59         }
60     }
61 
62     @Test(expectedExceptions=ClassCastException.class)
63     public void testMemoryAddressValueSetAsString() {
64         try (Arena arena = Arena.ofConfined()) {
65             MemorySegment s = arena.allocate(8, 8);;
66             ADDR_HANDLE.set(s, "string");
67         }
68     }
69 
70     @Test(expectedExceptions=WrongMethodTypeException.class)
71     public void testMemoryAddressValueGetAsPrimitive() {
72         try (Arena arena = Arena.ofConfined()) {
73             MemorySegment s = arena.allocate(8, 8);;
74             int address = (int)ADDR_HANDLE.get(s);
75         }
76     }
77 
78     @Test(expectedExceptions=WrongMethodTypeException.class)
79     public void testMemoryAddressValueSetAsPrimitive() {
80         try (Arena arena = Arena.ofConfined()) {
81             MemorySegment s = arena.allocate(8, 8);;
82             ADDR_HANDLE.set(s, 1);
83         }
84     }
85 
86 }