package java.lang.invoke;
import jdk.internal.util.Preconditions;
import jdk.internal.vm.annotation.ForceInline;
import java.util.Objects;
import static java.lang.invoke.MethodHandleStatics.UNSAFE;
final class VarHandleObjects {
static class FieldInstanceReadOnly extends VarHandle {
final long fieldOffset;
final Class<?> receiverType;
final Class<?> fieldType;
FieldInstanceReadOnly(Class<?> receiverType, long fieldOffset, Class<?> fieldType) {
this(receiverType, fieldOffset, fieldType, FieldInstanceReadOnly.FORM);
}
protected FieldInstanceReadOnly(Class<?> receiverType, long fieldOffset, Class<?> fieldType,
VarForm form) {
super(form);
this.fieldOffset = fieldOffset;
this.receiverType = receiverType;
this.fieldType = fieldType;
}
@Override
final MethodType accessModeTypeUncached(AccessMode accessMode) {
return accessMode.at.accessModeType(receiverType, fieldType);
}
@ForceInline
static Object get(FieldInstanceReadOnly handle, Object holder) {
return UNSAFE.getObject(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset);
}
@ForceInline
static Object getVolatile(FieldInstanceReadOnly handle, Object holder) {
return UNSAFE.getObjectVolatile(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset);
}
@ForceInline
static Object getOpaque(FieldInstanceReadOnly handle, Object holder) {
return UNSAFE.getObjectOpaque(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset);
}
@ForceInline
static Object getAcquire(FieldInstanceReadOnly handle, Object holder) {
return UNSAFE.getObjectAcquire(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset);
}
static final VarForm FORM = new VarForm(FieldInstanceReadOnly.class, Object.class, Object.class);
}
static final class FieldInstanceReadWrite extends FieldInstanceReadOnly {
FieldInstanceReadWrite(Class<?> receiverType, long fieldOffset, Class<?> fieldType) {
super(receiverType, fieldOffset, fieldType, FieldInstanceReadWrite.FORM);
}
@ForceInline
static void set(FieldInstanceReadWrite handle, Object holder, Object value) {
UNSAFE.putObject(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static void setVolatile(FieldInstanceReadWrite handle, Object holder, Object value) {
UNSAFE.putObjectVolatile(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static void setOpaque(FieldInstanceReadWrite handle, Object holder, Object value) {
UNSAFE.putObjectOpaque(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static void setRelease(FieldInstanceReadWrite handle, Object holder, Object value) {
UNSAFE.putObjectRelease(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static boolean compareAndSet(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.compareAndSetObject(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object compareAndExchange(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.compareAndExchangeObject(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object compareAndExchangeAcquire(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.compareAndExchangeObjectAcquire(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object compareAndExchangeRelease(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.compareAndExchangeObjectRelease(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSetPlain(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObjectPlain(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSet(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObject(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSetAcquire(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObjectAcquire(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSetRelease(FieldInstanceReadWrite handle, Object holder, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObjectRelease(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object getAndSet(FieldInstanceReadWrite handle, Object holder, Object value) {
return UNSAFE.getAndSetObject(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static Object getAndSetAcquire(FieldInstanceReadWrite handle, Object holder, Object value) {
return UNSAFE.getAndSetObjectAcquire(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static Object getAndSetRelease(FieldInstanceReadWrite handle, Object holder, Object value) {
return UNSAFE.getAndSetObjectRelease(Objects.requireNonNull(handle.receiverType.cast(holder)),
handle.fieldOffset,
handle.fieldType.cast(value));
}
static final VarForm FORM = new VarForm(FieldInstanceReadWrite.class, Object.class, Object.class);
}
static class FieldStaticReadOnly extends VarHandle {
final Object base;
final long fieldOffset;
final Class<?> fieldType;
FieldStaticReadOnly(Object base, long fieldOffset, Class<?> fieldType) {
this(base, fieldOffset, fieldType, FieldStaticReadOnly.FORM);
}
protected FieldStaticReadOnly(Object base, long fieldOffset, Class<?> fieldType,
VarForm form) {
super(form);
this.base = base;
this.fieldOffset = fieldOffset;
this.fieldType = fieldType;
}
@Override
final MethodType accessModeTypeUncached(AccessMode accessMode) {
return accessMode.at.accessModeType(null, fieldType);
}
@ForceInline
static Object get(FieldStaticReadOnly handle) {
return UNSAFE.getObject(handle.base,
handle.fieldOffset);
}
@ForceInline
static Object getVolatile(FieldStaticReadOnly handle) {
return UNSAFE.getObjectVolatile(handle.base,
handle.fieldOffset);
}
@ForceInline
static Object getOpaque(FieldStaticReadOnly handle) {
return UNSAFE.getObjectOpaque(handle.base,
handle.fieldOffset);
}
@ForceInline
static Object getAcquire(FieldStaticReadOnly handle) {
return UNSAFE.getObjectAcquire(handle.base,
handle.fieldOffset);
}
static final VarForm FORM = new VarForm(FieldStaticReadOnly.class, null, Object.class);
}
static final class FieldStaticReadWrite extends FieldStaticReadOnly {
FieldStaticReadWrite(Object base, long fieldOffset, Class<?> fieldType) {
super(base, fieldOffset, fieldType, FieldStaticReadWrite.FORM);
}
@ForceInline
static void set(FieldStaticReadWrite handle, Object value) {
UNSAFE.putObject(handle.base,
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static void setVolatile(FieldStaticReadWrite handle, Object value) {
UNSAFE.putObjectVolatile(handle.base,
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static void setOpaque(FieldStaticReadWrite handle, Object value) {
UNSAFE.putObjectOpaque(handle.base,
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static void setRelease(FieldStaticReadWrite handle, Object value) {
UNSAFE.putObjectRelease(handle.base,
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static boolean compareAndSet(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.compareAndSetObject(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object compareAndExchange(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.compareAndExchangeObject(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object compareAndExchangeAcquire(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.compareAndExchangeObjectAcquire(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object compareAndExchangeRelease(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.compareAndExchangeObjectRelease(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSetPlain(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObjectPlain(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSet(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObject(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSetAcquire(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObjectAcquire(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static boolean weakCompareAndSetRelease(FieldStaticReadWrite handle, Object expected, Object value) {
return UNSAFE.weakCompareAndSetObjectRelease(handle.base,
handle.fieldOffset,
handle.fieldType.cast(expected),
handle.fieldType.cast(value));
}
@ForceInline
static Object getAndSet(FieldStaticReadWrite handle, Object value) {
return UNSAFE.getAndSetObject(handle.base,
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static Object getAndSetAcquire(FieldStaticReadWrite handle, Object value) {
return UNSAFE.getAndSetObjectAcquire(handle.base,
handle.fieldOffset,
handle.fieldType.cast(value));
}
@ForceInline
static Object getAndSetRelease(FieldStaticReadWrite handle, Object value) {
return UNSAFE.getAndSetObjectRelease(handle.base,
handle.fieldOffset,
handle.fieldType.cast(value));
}
static final VarForm FORM = new VarForm(FieldStaticReadWrite.class, null, Object.class);
}
static final class Array extends VarHandle {
final int abase;
final int ashift;
final Class<?> arrayType;
final Class<?> componentType;
Array(int abase, int ashift, Class<?> arrayType) {
super(Array.FORM);
this.abase = abase;
this.ashift = ashift;
this.arrayType = arrayType;
this.componentType = arrayType.getComponentType();
}
@Override
final MethodType accessModeTypeUncached(AccessMode accessMode) {
return accessMode.at.accessModeType(arrayType, arrayType.getComponentType(), int.class);
}
@ForceInline
static Object runtimeTypeCheck(Array handle, Object[] oarray, Object value) {
if (handle.arrayType == oarray.getClass()) {
return handle.componentType.cast(value);
} else {
return reflectiveTypeCheck(oarray, value);
}
}
@ForceInline
static Object reflectiveTypeCheck(Object[] oarray, Object value) {
try {
return oarray.getClass().getComponentType().cast(value);
} catch (ClassCastException e) {
throw new ArrayStoreException();
}
}
@ForceInline
static Object get(Array handle, Object oarray, int index) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return array[index];
}
@ForceInline
static void set(Array handle, Object oarray, int index, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
array[index] = handle.componentType.cast(value);
}
@ForceInline
static Object getVolatile(Array handle, Object oarray, int index) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.getObjectVolatile(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase);
}
@ForceInline
static void setVolatile(Array handle, Object oarray, int index, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
UNSAFE.putObjectVolatile(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object getOpaque(Array handle, Object oarray, int index) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.getObjectOpaque(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase);
}
@ForceInline
static void setOpaque(Array handle, Object oarray, int index, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
UNSAFE.putObjectOpaque(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object getAcquire(Array handle, Object oarray, int index) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.getObjectAcquire(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase);
}
@ForceInline
static void setRelease(Array handle, Object oarray, int index, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
UNSAFE.putObjectRelease(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static boolean compareAndSet(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.compareAndSetObject(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object compareAndExchange(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.compareAndExchangeObject(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object compareAndExchangeAcquire(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.compareAndExchangeObjectAcquire(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object compareAndExchangeRelease(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.compareAndExchangeObjectRelease(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static boolean weakCompareAndSetPlain(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.weakCompareAndSetObjectPlain(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static boolean weakCompareAndSet(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.weakCompareAndSetObject(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static boolean weakCompareAndSetAcquire(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.weakCompareAndSetObjectAcquire(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static boolean weakCompareAndSetRelease(Array handle, Object oarray, int index, Object expected, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.weakCompareAndSetObjectRelease(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
handle.componentType.cast(expected),
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object getAndSet(Array handle, Object oarray, int index, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.getAndSetObject(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object getAndSetAcquire(Array handle, Object oarray, int index, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.getAndSetObjectAcquire(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
runtimeTypeCheck(handle, array, value));
}
@ForceInline
static Object getAndSetRelease(Array handle, Object oarray, int index, Object value) {
Object[] array = (Object[]) handle.arrayType.cast(oarray);
return UNSAFE.getAndSetObjectRelease(array,
(((long) Preconditions.checkIndex(index, array.length, AIOOBE_SUPPLIER)) << handle.ashift) + handle.abase,
runtimeTypeCheck(handle, array, value));
}
static final VarForm FORM = new VarForm(Array.class, Object[].class, Object.class, int.class);
}
}