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/*
* Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @enablePreview
* @run testng/othervm MemoryLayoutPrincipalTotalityTest
*/
import org.testng.annotations.*;
import java.lang.foreign.*;
import static java.lang.foreign.ValueLayout.*;
import static org.testng.Assert.*;
public class MemoryLayoutPrincipalTotalityTest {
// The tests in this class is mostly there to ensure compile-time pattern matching totality.
@Test
public void testBasicTotality() {
MemoryLayout memoryLayout = javaIntMemoryLayout();
int v0 = switch (memoryLayout) {
case MemoryLayout ml -> 1;
};
assertEquals(v0, 1);
}
@Test
public void testMLRemovedTotality() {
MemoryLayout memoryLayout = javaIntMemoryLayout();
var v1 = switch (memoryLayout) {
case GroupLayout gl -> 0;
case PaddingLayout pl -> 0; // leaf
case SequenceLayout sl -> 0; // leaf
case ValueLayout vl -> 1;
};
assertEquals(v1, 1);
}
@Test
public void testMLGLRemovedTotality() {
MemoryLayout memoryLayout = javaIntMemoryLayout();
var v2 = switch (memoryLayout) {
case PaddingLayout pl -> 0; // leaf
case SequenceLayout sl -> 0; // leaf
case ValueLayout vl -> 1;
case StructLayout sl -> 0; // leaf
case UnionLayout ul -> 0; // leaf
};
assertEquals(v2, 1);
}
@Test
public void testMLGLVLRemovedTotality() {
MemoryLayout memoryLayout = javaIntMemoryLayout();
var v3 = switch (memoryLayout) {
case PaddingLayout pl -> 0; // leaf
case SequenceLayout sl -> 0; // leaf
case StructLayout sl -> 0; // leaf
case UnionLayout ul -> 0; // leaf
case AddressLayout oa -> 0; // leaf
case OfBoolean ob -> 0; // leaf
case OfByte ob -> 0; // leaf
case OfChar oc -> 0; // leaf
case OfDouble od -> 0; // leaf
case OfFloat of -> 0; // leaf
case OfInt oi -> 1; // leaf
case OfLong ol -> 0; // leaf
case OfShort os -> 0; // leaf
};
assertEquals(v3, 1);
}
@Test
public void testMLVLRemovedTotality() {
MemoryLayout memoryLayout = javaIntMemoryLayout();
var v4 = switch (memoryLayout) {
case GroupLayout gl -> 0;
case PaddingLayout pl -> 0; // leaf
case SequenceLayout sl -> 0; // leaf
case AddressLayout oa -> 0; // leaf
case OfBoolean ob -> 0; // leaf
case OfByte ob -> 0; // leaf
case OfChar oc -> 0; // leaf
case OfDouble od -> 0; // leaf
case OfFloat of -> 0; // leaf
case OfInt oi -> 1; // leaf
case OfLong ol -> 0; // leaf
case OfShort os -> 0; // leaf
};
assertEquals(v4, 1);
}
private static MemoryLayout javaIntMemoryLayout() {
return JAVA_INT;
}
}
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