public static boolean typesMatch(Class<?>[] usedTypes, Class<?>[] expectedTypes) {
// expectedTypes is empty
if (ArrayUtil.isEmpty(expectedTypes)) return ArrayUtil.isEmpty(usedTypes);
Class<?> lastExpectedType = ArrayUtil.lastElementOf(expectedTypes);
if (lastExpectedType.isArray()) {
// process varargs parameter
if (usedTypes.length < expectedTypes.length - 1) return false; // fault
if (usedTypes.length == expectedTypes.length - 1)
return typesMatch(
usedTypes, ArrayUtil.copyOfRange(expectedTypes, 0, usedTypes.length)); // empty varargs
// check if all used types match the varargs type
if (usedTypes.length >= expectedTypes.length) {
Class<?> componentType = lastExpectedType.getComponentType();
for (int i = expectedTypes.length - 1; i < usedTypes.length; i++) {
Class<?> foundType = usedTypes[i];
if (!typeMatches(foundType, componentType)) return false;
}
return true;
}
}
if (usedTypes.length != expectedTypes.length) return false;
if (expectedTypes.length == 0 && usedTypes.length == 0) return true;
for (int i = 0; i < usedTypes.length; i++) {
Class<?> expectedType = expectedTypes[i];
Class<?> foundType = usedTypes[i];
if (!typeMatches(foundType, expectedType)) return false;
}
return true;
}
