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8308645: Javadoc of FFM API needs to be refreshed

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8309398: ValueLayout:: arrayElementVarHandle doesn't throws UnsupportedOperationException - if byteAlignment() > byteSize()
8308812: SequenceLayout::withElementCount(long elementCount) doesn't throw IllegalArgumentException - if elementCount < 0 for some cases

Reviewed-by: jvernee
This commit is contained in:
Maurizio Cimadamore 2023-06-12 15:55:49 +00:00
parent 07275072aa
commit a6ad42e00e
28 changed files with 826 additions and 607 deletions
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10
src/java.base/share/classes/java/lang/foreign/snippet-files/Snippets.java
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@ -186,16 +186,16 @@ class Snippets {
}
}
FunctionDescriptor compareDesc = FunctionDescriptor.of(JAVA_INT,
FunctionDescriptor comparDesc = FunctionDescriptor.of(JAVA_INT,
ADDRESS.withTargetLayout(JAVA_INT),
ADDRESS.withTargetLayout(JAVA_INT));
MethodHandle compareHandle = MethodHandles.lookup()
MethodHandle comparHandle = MethodHandles.lookup()
.findStatic(Qsort.class, "qsortCompare",
compareDesc.toMethodType());
comparDesc.toMethodType());
try (Arena arena = Arena.ofConfined()) {
MemorySegment compareFunc = linker.upcallStub(compareHandle, compareDesc, arena);
MemorySegment compareFunc = linker.upcallStub(comparHandle, comparDesc, arena);
MemorySegment array = arena.allocateArray(JAVA_INT, 0, 9, 3, 4, 6, 5, 1, 8, 2, 7);
qsort.invokeExact(array, 10L, 4L, compareFunc);
int[] sorted = array.toArray(JAVA_INT); // [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
@ -400,7 +400,7 @@ class Snippets {
.findStatic(Math.class, "multiplyExact",
MethodType.methodType(long.class, long.class, long.class));
intHandle = MethodHandles.filterCoordinates(intHandle, 1,
MethodHandles.insertArguments(multiplyExact, 0, 4L));
MethodHandles.insertArguments(multiplyExact, 0, ValueLayout.JAVA_INT.byteSize()));
int value = (int) intHandle.get(segment, 3L); // get int element at offset 3 * 4 = 12
}