73baadceb6
Co-authored-by: Jorn Vernee <jvernee@openjdk.org> Co-authored-by: Per Minborg <pminborg@openjdk.org> Co-authored-by: Maurizio Cimadamore <mcimadamore@openjdk.org> Reviewed-by: jvernee, pminborg, psandoz, alanb, sundar
102 lines
4.1 KiB
Java
102 lines
4.1 KiB
Java
/*
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* Copyright (c) 2019, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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import java.lang.foreign.Arena;
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import java.lang.foreign.MemoryLayout;
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import java.lang.foreign.MemorySegment;
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import java.lang.foreign.ValueLayout;
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import java.lang.invoke.VarHandle;
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import org.testng.annotations.*;
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import static org.testng.Assert.*;
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/*
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* @test
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* @enablePreview
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* @run testng/othervm -Xverify:all TestSlices
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*/
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public class TestSlices {
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static MemoryLayout LAYOUT = MemoryLayout.sequenceLayout(2,
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MemoryLayout.sequenceLayout(5, ValueLayout.JAVA_INT));
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static VarHandle VH_ALL = LAYOUT.varHandle(
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MemoryLayout.PathElement.sequenceElement(), MemoryLayout.PathElement.sequenceElement());
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@Test(dataProvider = "slices")
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public void testSlices(VarHandle handle, int lo, int hi, int[] values) {
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try (Arena arena = Arena.openConfined()) {
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MemorySegment segment = MemorySegment.allocateNative(LAYOUT, arena.scope());;
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//init
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for (long i = 0 ; i < 2 ; i++) {
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for (long j = 0 ; j < 5 ; j++) {
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VH_ALL.set(segment, i, j, (int)j + 1 + ((int)i * 5));
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}
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}
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checkSlice(segment, handle, lo, hi, values);
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}
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}
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@Test(dataProvider = "slices")
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public void testSliceBadIndex(VarHandle handle, int lo, int hi, int[] values) {
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try (Arena arena = Arena.openConfined()) {
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MemorySegment segment = MemorySegment.allocateNative(LAYOUT, arena.scope());;
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assertThrows(() -> handle.get(segment, lo, 0));
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assertThrows(() -> handle.get(segment, 0, hi));
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}
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}
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static void checkSlice(MemorySegment segment, VarHandle handle, long i_max, long j_max, int... values) {
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int index = 0;
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for (long i = 0 ; i < i_max ; i++) {
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for (long j = 0 ; j < j_max ; j++) {
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int x = (int) handle.get(segment, i, j);
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assertEquals(x, values[index++]);
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}
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}
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assertEquals(index, values.length);
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}
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@DataProvider(name = "slices")
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static Object[][] slices() {
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return new Object[][] {
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// x
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{ VH_ALL, 2, 5, new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 } },
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// x[0::2]
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{ LAYOUT.varHandle(MemoryLayout.PathElement.sequenceElement(),
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MemoryLayout.PathElement.sequenceElement(0, 2)), 2, 3, new int[] { 1, 3, 5, 6, 8, 10 } },
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// x[1::2]
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{ LAYOUT.varHandle(MemoryLayout.PathElement.sequenceElement(),
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MemoryLayout.PathElement.sequenceElement(1, 2)), 2, 2, new int[] { 2, 4, 7, 9 } },
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// x[4::-2]
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{ LAYOUT.varHandle(MemoryLayout.PathElement.sequenceElement(),
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MemoryLayout.PathElement.sequenceElement(4, -2)), 2, 3, new int[] { 5, 3, 1, 10, 8, 6 } },
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// x[3::-2]
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{ LAYOUT.varHandle(MemoryLayout.PathElement.sequenceElement(),
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MemoryLayout.PathElement.sequenceElement(3, -2)), 2, 2, new int[] { 4, 2, 9, 7 } },
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};
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}
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}
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