@Test
public void checkThatOtherMethodsAreNonStatic() throws NoSuchMethodException {
Method spin = Earth.class.getDeclaredMethod("spin");
assertFalse("Method spin() should not be static", Modifier.isStatic(spin.getModifiers()));
Method warmUp = Earth.class.getDeclaredMethod("warmUp");
assertFalse("Method warmUp() should not be static", Modifier.isStatic(warmUp.getModifiers()));
}
@Test
public void checkEarthIsAbstract() throws NoSuchMethodException {
assertTrue("Earth class should be abstract", Modifier.isAbstract(Earth.class.getModifiers()));
assertTrue(
"Earth class spin() method should be abstract",
Modifier.isAbstract(Earth.class.getMethod("spin").getModifiers()));
assertTrue(
"Earth class warmUp() method should be abstract",
Modifier.isAbstract(Earth.class.getMethod("warmUp").getModifiers()));
}
@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()));
}
@Test
public void checkThatConstructorIsProtected() {
for (Constructor<?> constr : Earth.class.getDeclaredConstructors()) {
assertTrue(
"Constructors should be protected to allow subclasses of singleton",
Modifier.isProtected(constr.getModifiers()));
}
}
private Method checkThatSingletonContainsStaticInstanceAccessorMethod(Class clazz) {
for (Method method : clazz.getDeclaredMethods()) {
if (method.getReturnType() == clazz && method.getParameterTypes().length == 0) {
assertTrue(
"Method returning the Earth instance should be static",
Modifier.isStatic(method.getModifiers()));
return method;
}
}
fail("No static accessor method found.");
return null; // will never be called.
}
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));
}
