/*
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* 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
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*
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test
* @run testng/othervm -Djava.lang.invoke.VarHandle.VAR_HANDLE_GUARDS=true -Djava.lang.invoke.VarHandle.VAR_HANDLE_IDENTITY_ADAPT=false -Xverify:all TestMemoryAccess
* @run testng/othervm -Djava.lang.invoke.VarHandle.VAR_HANDLE_GUARDS=true -Djava.lang.invoke.VarHandle.VAR_HANDLE_IDENTITY_ADAPT=true -Xverify:all TestMemoryAccess
* @run testng/othervm -Djava.lang.invoke.VarHandle.VAR_HANDLE_GUARDS=false -Djava.lang.invoke.VarHandle.VAR_HANDLE_IDENTITY_ADAPT=false -Xverify:all TestMemoryAccess
* @run testng/othervm -Djava.lang.invoke.VarHandle.VAR_HANDLE_GUARDS=false -Djava.lang.invoke.VarHandle.VAR_HANDLE_IDENTITY_ADAPT=true -Xverify:all TestMemoryAccess
*/
import java.lang.foreign.*;
import java.lang.foreign.MemoryLayout.PathElement;
import java.lang.invoke.VarHandle;
import java.nio.ByteOrder;
import java.util.function.Function;
import org.testng.annotations.*;
import static org.testng.Assert.*;
public class TestMemoryAccess {
@Test(dataProvider = "elements")
public void testAccess(Function<MemorySegment, MemorySegment> viewFactory, ValueLayout elemLayout, Checker checker) {
ValueLayout layout = elemLayout.withName("elem");
testAccessInternal(viewFactory, layout, layout.varHandle(), checker);
}
@Test(dataProvider = "elements")
public void testPaddedAccessByName(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, Checker checker) {
GroupLayout layout = MemoryLayout.structLayout(MemoryLayout.paddingLayout(elemLayout.byteSize()), elemLayout.withName("elem"));
testAccessInternal(viewFactory, layout, layout.varHandle(PathElement.groupElement("elem")), checker);
}
@Test(dataProvider = "elements")
public void testPaddedAccessByIndexSeq(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, Checker checker) {
SequenceLayout layout = MemoryLayout.sequenceLayout(2, elemLayout);
testAccessInternal(viewFactory, layout, layout.varHandle(PathElement.sequenceElement(1)), checker);
}
@Test(dataProvider = "arrayElements")
public void testArrayAccess(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, ArrayChecker checker) {
SequenceLayout seq = MemoryLayout.sequenceLayout(10, elemLayout.withName("elem"));
testArrayAccessInternal(viewFactory, seq, seq.varHandle(PathElement.sequenceElement()), checker);
}
@Test(dataProvider = "arrayElements")
public void testPaddedArrayAccessByName(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, ArrayChecker checker) {
SequenceLayout seq = MemoryLayout.sequenceLayout(10, MemoryLayout.structLayout(MemoryLayout.paddingLayout(elemLayout.byteSize()), elemLayout.withName("elem")));
testArrayAccessInternal(viewFactory, seq, seq.varHandle(MemoryLayout.PathElement.sequenceElement(), MemoryLayout.PathElement.groupElement("elem")), checker);
}
@Test(dataProvider = "arrayElements")
public void testPaddedArrayAccessByIndexSeq(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, ArrayChecker checker) {
SequenceLayout seq = MemoryLayout.sequenceLayout(10, MemoryLayout.sequenceLayout(2, elemLayout));
testArrayAccessInternal(viewFactory, seq, seq.varHandle(PathElement.sequenceElement(), MemoryLayout.PathElement.sequenceElement(1)), checker);
}
private void testAccessInternal(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout layout, VarHandle handle, Checker checker) {
MemorySegment outer_segment;
try (Arena arena = Arena.ofConfined()) {
MemorySegment segment = viewFactory.apply(arena.allocate(layout));
boolean isRO = segment.isReadOnly();
try {
checker.check(handle, segment);
if (isRO) {
throw new AssertionError(); //not ok, memory should be immutable
}
} catch (UnsupportedOperationException ex) {
if (!isRO) {
throw new AssertionError(); //we should not have failed!
}
return;
}
try {
checker.check(handle, segment.asSlice(layout.byteSize()));
throw new AssertionError(); //not ok, out of bounds
} catch (IndexOutOfBoundsException ex) {
//ok, should fail (out of bounds)
}
outer_segment = segment; //leak!
}
try {
checker.check(handle, outer_segment);
throw new AssertionError(); //not ok, session is closed
} catch (IllegalStateException ex) {
//ok, should fail (session is closed)
}
}
private void testArrayAccessInternal(Function<MemorySegment, MemorySegment> viewFactory, SequenceLayout seq, VarHandle handle, ArrayChecker checker) {
MemorySegment outer_segment;
try (Arena arena = Arena.ofConfined()) {
MemorySegment segment = viewFactory.apply(arena.allocate(seq));
boolean isRO = segment.isReadOnly();
try {
for (int i = 0; i < seq.elementCount(); i++) {
checker.check(handle, segment, i);
}
if (isRO) {
throw new AssertionError(); //not ok, memory should be immutable
}
} catch (UnsupportedOperationException ex) {
if (!isRO) {
throw new AssertionError(); //we should not have failed!
}
return;
}
try {
checker.check(handle, segment, seq.elementCount());
throw new AssertionError(); //not ok, out of bounds
} catch (IndexOutOfBoundsException ex) {
//ok, should fail (out of bounds)
}
outer_segment = segment; //leak!
}
try {
checker.check(handle, outer_segment, 0);
throw new AssertionError(); //not ok, session is closed
} catch (IllegalStateException ex) {
//ok, should fail (session is closed)
}
}
@Test(dataProvider = "matrixElements")
public void testMatrixAccess(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, MatrixChecker checker) {
SequenceLayout seq = MemoryLayout.sequenceLayout(20,
MemoryLayout.sequenceLayout(10, elemLayout.withName("elem")));
testMatrixAccessInternal(viewFactory, seq, seq.varHandle(
PathElement.sequenceElement(), PathElement.sequenceElement()), checker);
}
@Test(dataProvider = "matrixElements")
public void testPaddedMatrixAccessByName(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, MatrixChecker checker) {
SequenceLayout seq = MemoryLayout.sequenceLayout(20,
MemoryLayout.sequenceLayout(10, MemoryLayout.structLayout(MemoryLayout.paddingLayout(elemLayout.byteSize()), elemLayout.withName("elem"))));
testMatrixAccessInternal(viewFactory, seq,
seq.varHandle(
PathElement.sequenceElement(), PathElement.sequenceElement(), PathElement.groupElement("elem")),
checker);
}
@Test(dataProvider = "matrixElements")
public void testPaddedMatrixAccessByIndexSeq(Function<MemorySegment, MemorySegment> viewFactory, MemoryLayout elemLayout, MatrixChecker checker) {
SequenceLayout seq = MemoryLayout.sequenceLayout(20,
MemoryLayout.sequenceLayout(10, MemoryLayout.sequenceLayout(2, elemLayout)));
testMatrixAccessInternal(viewFactory, seq,
seq.varHandle(
PathElement.sequenceElement(), PathElement.sequenceElement(), PathElement.sequenceElement(1)),
checker);
}
private void testMatrixAccessInternal(Function<MemorySegment, MemorySegment> viewFactory, SequenceLayout seq, VarHandle handle, MatrixChecker checker) {
MemorySegment outer_segment;
try (Arena arena = Arena.ofConfined()) {
MemorySegment segment = viewFactory.apply(arena.allocate(seq));
boolean isRO = segment.isReadOnly();
try {
for (int i = 0; i < seq.elementCount(); i++) {
for (int j = 0; j < ((SequenceLayout) seq.elementLayout()).elementCount(); j++) {
checker.check(handle, segment, i, j);
}
}
if (isRO) {
throw new AssertionError(); //not ok, memory should be immutable
}
} catch (UnsupportedOperationException ex) {
if (!isRO) {
throw new AssertionError(); //we should not have failed!
}
return;
}
try {
checker.check(handle, segment, seq.elementCount(),
((SequenceLayout)seq.elementLayout()).elementCount());
throw new AssertionError(); //not ok, out of bounds
} catch (IndexOutOfBoundsException ex) {
//ok, should fail (out of bounds)
}
outer_segment = segment; //leak!
}
try {
checker.check(handle, outer_segment, 0, 0);
throw new AssertionError(); //not ok, session is closed
} catch (IllegalStateException ex) {
//ok, should fail (session is closed)
}
}
static Function<MemorySegment, MemorySegment> ID = Function.identity();
static Function<MemorySegment, MemorySegment> IMMUTABLE = MemorySegment::asReadOnly;
@DataProvider(name = "elements")
public Object[][] createData() {
return new Object[][] {
//BE, RW
{ ID, ValueLayout.JAVA_BYTE, Checker.BYTE },
{ ID, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.BIG_ENDIAN), Checker.SHORT },
{ ID, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.BIG_ENDIAN), Checker.CHAR },
{ ID, ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN), Checker.INT },
{ ID, ValueLayout.JAVA_LONG.withOrder(ByteOrder.BIG_ENDIAN), Checker.LONG },
{ ID, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.BIG_ENDIAN), Checker.FLOAT },
{ ID, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.BIG_ENDIAN), Checker.DOUBLE },
//BE, RO
{ IMMUTABLE, ValueLayout.JAVA_BYTE, Checker.BYTE },
{ IMMUTABLE, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.BIG_ENDIAN), Checker.SHORT },
{ IMMUTABLE, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.BIG_ENDIAN), Checker.CHAR },
{ IMMUTABLE, ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN), Checker.INT },
{ IMMUTABLE, ValueLayout.JAVA_LONG.withOrder(ByteOrder.BIG_ENDIAN), Checker.LONG },
{ IMMUTABLE, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.BIG_ENDIAN), Checker.FLOAT },
{ IMMUTABLE, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.BIG_ENDIAN), Checker.DOUBLE },
//LE, RW
{ ID, ValueLayout.JAVA_BYTE, Checker.BYTE },
{ ID, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.SHORT },
{ ID, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.CHAR },
{ ID, ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.INT },
{ ID, ValueLayout.JAVA_LONG.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.LONG },
{ ID, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.FLOAT },
{ ID, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.DOUBLE },
//LE, RO
{ IMMUTABLE, ValueLayout.JAVA_BYTE, Checker.BYTE },
{ IMMUTABLE, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.SHORT },
{ IMMUTABLE, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.CHAR },
{ IMMUTABLE, ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.INT },
{ IMMUTABLE, ValueLayout.JAVA_LONG.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.LONG },
{ IMMUTABLE, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.FLOAT },
{ IMMUTABLE, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.LITTLE_ENDIAN), Checker.DOUBLE },
};
}
interface Checker {
void check(VarHandle handle, MemorySegment segment);
Checker BYTE = (handle, segment) -> {
handle.set(segment, 0L, (byte)42);
assertEquals(42, (byte)handle.get(segment, 0L));
};
Checker SHORT = (handle, segment) -> {
handle.set(segment, 0L, (short)42);
assertEquals(42, (short)handle.get(segment, 0L));
};
Checker CHAR = (handle, segment) -> {
handle.set(segment, 0L, (char)42);
assertEquals(42, (char)handle.get(segment, 0L));
};
Checker INT = (handle, segment) -> {
handle.set(segment, 0L, 42);
assertEquals(42, (int)handle.get(segment, 0L));
};
Checker LONG = (handle, segment) -> {
handle.set(segment, 0L, (long)42);
assertEquals(42, (long)handle.get(segment, 0L));
};
Checker FLOAT = (handle, segment) -> {
handle.set(segment, 0L, (float)42);
assertEquals((float)42, (float)handle.get(segment, 0L));
};
Checker DOUBLE = (handle, segment) -> {
handle.set(segment, 0L, (double)42);
assertEquals((double)42, (double)handle.get(segment, 0L));
};
}
@DataProvider(name = "arrayElements")
public Object[][] createArrayData() {
return new Object[][] {
//BE, RW
{ ID, ValueLayout.JAVA_BYTE, ArrayChecker.BYTE },
{ ID, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.SHORT },
{ ID, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.CHAR },
{ ID, ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.INT },
{ ID, ValueLayout.JAVA_LONG.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.LONG },
{ ID, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.FLOAT },
{ ID, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.DOUBLE },
//BE, RO
{ IMMUTABLE, ValueLayout.JAVA_BYTE, ArrayChecker.BYTE },
{ IMMUTABLE, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.SHORT },
{ IMMUTABLE, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.CHAR },
{ IMMUTABLE, ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.INT },
{ IMMUTABLE, ValueLayout.JAVA_LONG.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.LONG },
{ IMMUTABLE, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.FLOAT },
{ IMMUTABLE, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.BIG_ENDIAN), ArrayChecker.DOUBLE },
//LE, RW
{ ID, ValueLayout.JAVA_BYTE, ArrayChecker.BYTE },
{ ID, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.SHORT },
{ ID, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.CHAR },
{ ID, ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.INT },
{ ID, ValueLayout.JAVA_LONG.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.LONG },
{ ID, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.FLOAT },
{ ID, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.DOUBLE },
//LE, RO
{ IMMUTABLE, ValueLayout.JAVA_BYTE, ArrayChecker.BYTE },
{ IMMUTABLE, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.SHORT },
{ IMMUTABLE, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.CHAR },
{ IMMUTABLE, ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.INT },
{ IMMUTABLE, ValueLayout.JAVA_LONG.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.LONG },
{ IMMUTABLE, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.FLOAT },
{ IMMUTABLE, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.LITTLE_ENDIAN), ArrayChecker.DOUBLE },
};
}
interface ArrayChecker {
void check(VarHandle handle, MemorySegment segment, long index);
ArrayChecker BYTE = (handle, segment, i) -> {
handle.set(segment, 0L, i, (byte)i);
assertEquals(i, (byte)handle.get(segment, 0L, i));
};
ArrayChecker SHORT = (handle, segment, i) -> {
handle.set(segment, 0L, i, (short)i);
assertEquals(i, (short)handle.get(segment, 0L, i));
};
ArrayChecker CHAR = (handle, segment, i) -> {
handle.set(segment, 0L, i, (char)i);
assertEquals(i, (char)handle.get(segment, 0L, i));
};
ArrayChecker INT = (handle, segment, i) -> {
handle.set(segment, 0L, i, (int)i);
assertEquals(i, (int)handle.get(segment, 0L, i));
};
ArrayChecker LONG = (handle, segment, i) -> {
handle.set(segment, 0L, i, (long)i);
assertEquals(i, (long)handle.get(segment, 0L, i));
};
ArrayChecker FLOAT = (handle, segment, i) -> {
handle.set(segment, 0L, i, (float)i);
assertEquals((float)i, (float)handle.get(segment, 0L, i));
};
ArrayChecker DOUBLE = (handle, segment, i) -> {
handle.set(segment, 0L, i, (double)i);
assertEquals((double)i, (double)handle.get(segment, 0L, i));
};
}
@DataProvider(name = "matrixElements")
public Object[][] createMatrixData() {
return new Object[][] {
//BE, RW
{ ID, ValueLayout.JAVA_BYTE, MatrixChecker.BYTE },
{ ID, ValueLayout.JAVA_BOOLEAN, MatrixChecker.BOOLEAN },
{ ID, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.SHORT },
{ ID, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.CHAR },
{ ID, ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.INT },
{ ID, ValueLayout.JAVA_LONG.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.LONG },
{ ID, ValueLayout.ADDRESS.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.ADDR },
{ ID, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.FLOAT },
{ ID, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.DOUBLE },
//BE, RO
{ IMMUTABLE, ValueLayout.JAVA_BYTE, MatrixChecker.BYTE },
{ IMMUTABLE, ValueLayout.JAVA_BOOLEAN, MatrixChecker.BOOLEAN },
{ IMMUTABLE, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.SHORT },
{ IMMUTABLE, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.CHAR },
{ IMMUTABLE, ValueLayout.JAVA_INT.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.INT },
{ IMMUTABLE, ValueLayout.JAVA_LONG.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.LONG },
{ IMMUTABLE, ValueLayout.ADDRESS.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.ADDR },
{ IMMUTABLE, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.FLOAT },
{ IMMUTABLE, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.BIG_ENDIAN), MatrixChecker.DOUBLE },
//LE, RW
{ ID, ValueLayout.JAVA_BYTE, MatrixChecker.BYTE },
{ ID, ValueLayout.JAVA_BOOLEAN, MatrixChecker.BOOLEAN },
{ ID, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.SHORT },
{ ID, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.CHAR },
{ ID, ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.INT },
{ ID, ValueLayout.JAVA_LONG.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.LONG },
{ ID, ValueLayout.ADDRESS.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.ADDR },
{ ID, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.FLOAT },
{ ID, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.DOUBLE },
//LE, RO
{ IMMUTABLE, ValueLayout.JAVA_BYTE, MatrixChecker.BYTE },
{ IMMUTABLE, ValueLayout.JAVA_BOOLEAN, MatrixChecker.BOOLEAN },
{ IMMUTABLE, ValueLayout.JAVA_SHORT.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.SHORT },
{ IMMUTABLE, ValueLayout.JAVA_CHAR.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.CHAR },
{ IMMUTABLE, ValueLayout.JAVA_INT.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.INT },
{ IMMUTABLE, ValueLayout.JAVA_LONG.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.LONG },
{ IMMUTABLE, ValueLayout.ADDRESS.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.ADDR },
{ IMMUTABLE, ValueLayout.JAVA_FLOAT.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.FLOAT },
{ IMMUTABLE, ValueLayout.JAVA_DOUBLE.withOrder(ByteOrder.LITTLE_ENDIAN), MatrixChecker.DOUBLE },
};
}
interface MatrixChecker {
void check(VarHandle handle, MemorySegment segment, long row, long col);
MatrixChecker BYTE = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, (byte)(r + c));
assertEquals(r + c, (byte)handle.get(segment, 0L, r, c));
};
MatrixChecker BOOLEAN = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, (r + c) != 0);
assertEquals((r + c) != 0, (boolean)handle.get(segment, 0L, r, c));
};
MatrixChecker SHORT = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, (short)(r + c));
assertEquals(r + c, (short)handle.get(segment, 0L, r, c));
};
MatrixChecker CHAR = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, (char)(r + c));
assertEquals(r + c, (char)handle.get(segment, 0L, r, c));
};
MatrixChecker INT = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, (int)(r + c));
assertEquals(r + c, (int)handle.get(segment, 0L, r, c));
};
MatrixChecker LONG = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, r + c);
assertEquals(r + c, (long)handle.get(segment, 0L, r, c));
};
MatrixChecker ADDR = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, MemorySegment.ofAddress(r + c));
assertEquals(MemorySegment.ofAddress(r + c), (MemorySegment) handle.get(segment, 0L, r, c));
};
MatrixChecker FLOAT = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, (float)(r + c));
assertEquals((float)(r + c), (float)handle.get(segment, 0L, r, c));
};
MatrixChecker DOUBLE = (handle, segment, r, c) -> {
handle.set(segment, 0L, r, c, (double)(r + c));
assertEquals((double)(r + c), (double)handle.get(segment, 0L, r, c));
};
}
}