public Field findSingletonStaticPrivateInstanceField() {
for (Field field : Earth.class.getDeclaredFields()) {
if (field.getType() == Earth.class) {
return field;
}
}
return null;
}
@Test
public void checkThatSingletonContainsStaticPrivateInstanceField() {
Field field = findSingletonStaticPrivateInstanceField();
assertNotNull("No static private instance field found.", field);
assertTrue(
"Field pointing to the Earth instance should be static",
Modifier.isStatic(field.getModifiers()));
assertTrue(
"Field pointing to the Earth instance should be private",
Modifier.isPrivate(field.getModifiers()));
}
/**
* @throws NoSuchRecordFieldException
* @throws IOException
*/
@Test
public void testComputedField() throws NoSuchRecordFieldException, IOException {
List<Panel> panelList = database.getPanels();
for (Panel panel : panelList) {
List<Field> fieldList = panel.getFields();
for (Iterator<Record> recordIterator = panel.recordIterator(); recordIterator.hasNext(); ) {
Record record = recordIterator.next();
Iterator<Field> fieldIterator = fieldList.iterator();
while (fieldIterator.hasNext()) {
Field field = fieldIterator.next();
if (field.getInitialization() != null) {
assertTrue(field.getInitialization() != null);
if (field.isComputedField()) {
assertTrue(field.isComputedField());
assertTrue(record.getValueAsString(field.getNumber()) == null);
} else {
assertFalse(field.isComputedField());
assertTrue(record.getValueAsString(field.getNumber()) != null);
}
} else {
if (field.getLink() == null || field.getLink().getType() == LinkType.DATA_LINK) {
assertTrue(record.getValueAsString(field.getNumber()) != null);
}
}
}
}
}
}
private void replaceEarth(String earthclass) throws Exception {
System.setProperty("earthclass", earthclass);
Field instance = findSingletonStaticPrivateInstanceField();
instance.setAccessible(true);
instance.set(null, null);
}
public TypeUniverse() {
Providers providers =
Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getProviders();
metaAccess = providers.getMetaAccess();
constantReflection = providers.getConstantReflection();
snippetReflection = Graal.getRequiredCapability(SnippetReflectionProvider.class);
Unsafe theUnsafe = null;
try {
theUnsafe = Unsafe.getUnsafe();
} catch (Exception e) {
try {
Field theUnsafeField = Unsafe.class.getDeclaredField("theUnsafe");
theUnsafeField.setAccessible(true);
theUnsafe = (Unsafe) theUnsafeField.get(null);
} catch (Exception e1) {
throw (InternalError) new InternalError("unable to initialize unsafe").initCause(e1);
}
}
unsafe = theUnsafe;
Class<?>[] initialClasses = {
void.class,
boolean.class,
byte.class,
short.class,
char.class,
int.class,
float.class,
long.class,
double.class,
Object.class,
Class.class,
ClassLoader.class,
String.class,
Serializable.class,
Cloneable.class,
Test.class,
TestMetaAccessProvider.class,
List.class,
Collection.class,
Map.class,
Queue.class,
HashMap.class,
LinkedHashMap.class,
IdentityHashMap.class,
AbstractCollection.class,
AbstractList.class,
ArrayList.class
};
for (Class<?> c : initialClasses) {
addClass(c);
}
for (Field f : Constant.class.getDeclaredFields()) {
int mods = f.getModifiers();
if (f.getType() == Constant.class
&& Modifier.isPublic(mods)
&& Modifier.isStatic(mods)
&& Modifier.isFinal(mods)) {
try {
Constant c = (Constant) f.get(null);
if (c != null) {
constants.add(c);
}
} catch (Exception e) {
}
}
}
for (Class<?> c : classes) {
if (c != void.class && !c.isArray()) {
constants.add(snippetReflection.forObject(Array.newInstance(c, 42)));
}
}
constants.add(snippetReflection.forObject(new ArrayList<>()));
constants.add(snippetReflection.forObject(new IdentityHashMap<>()));
constants.add(snippetReflection.forObject(new LinkedHashMap<>()));
constants.add(snippetReflection.forObject(new TreeMap<>()));
constants.add(snippetReflection.forObject(new ArrayDeque<>()));
constants.add(snippetReflection.forObject(new LinkedList<>()));
constants.add(snippetReflection.forObject("a string"));
constants.add(snippetReflection.forObject(42));
constants.add(snippetReflection.forObject(String.class));
constants.add(snippetReflection.forObject(String[].class));
}