static AllowedValues getAllowedValues(
@NotNull PsiModifierListOwner element, PsiType type, Set<PsiClass> visited) {
PsiAnnotation[] annotations = AnnotationUtil.getAllAnnotations(element, true, null);
for (PsiAnnotation annotation : annotations) {
AllowedValues values;
if (type != null && MagicConstant.class.getName().equals(annotation.getQualifiedName())) {
// PsiAnnotation magic = AnnotationUtil.findAnnotationInHierarchy(element,
// Collections.singleton(MagicConstant.class.getName()));
values = getAllowedValuesFromMagic(element, type, annotation);
if (values != null) return values;
}
PsiJavaCodeReferenceElement ref = annotation.getNameReferenceElement();
PsiElement resolved = ref == null ? null : ref.resolve();
if (!(resolved instanceof PsiClass) || !((PsiClass) resolved).isAnnotationType()) continue;
PsiClass aClass = (PsiClass) resolved;
if (visited == null) visited = new THashSet<PsiClass>();
if (!visited.add(aClass)) continue;
values = getAllowedValues(aClass, type, visited);
if (values != null) return values;
}
return parseBeanInfo(element);
}
private static void completeAnnotationAttributeName(
CompletionResultSet result, PsiElement insertedElement, CompletionParameters parameters) {
PsiNameValuePair pair = PsiTreeUtil.getParentOfType(insertedElement, PsiNameValuePair.class);
PsiAnnotationParameterList parameterList = (PsiAnnotationParameterList) pair.getParent();
PsiAnnotation anno = (PsiAnnotation) parameterList.getParent();
boolean showClasses = psiElement().afterLeaf("(").accepts(insertedElement);
PsiClass annoClass = null;
final PsiJavaCodeReferenceElement referenceElement = anno.getNameReferenceElement();
if (referenceElement != null) {
final PsiElement element = referenceElement.resolve();
if (element instanceof PsiClass) {
annoClass = (PsiClass) element;
if (annoClass.findMethodsByName("value", false).length == 0) {
showClasses = false;
}
}
}
if (showClasses && insertedElement.getParent() instanceof PsiReferenceExpression) {
final Set<LookupElement> set =
JavaCompletionUtil.processJavaReference(
insertedElement,
(PsiJavaReference) insertedElement.getParent(),
new ElementExtractorFilter(createAnnotationFilter(insertedElement)),
JavaCompletionProcessor.Options.DEFAULT_OPTIONS,
result.getPrefixMatcher(),
parameters);
for (final LookupElement element : set) {
result.addElement(element);
}
addAllClasses(parameters, result, new InheritorsHolder(insertedElement, result));
}
if (annoClass != null) {
final PsiNameValuePair[] existingPairs = parameterList.getAttributes();
methods:
for (PsiMethod method : annoClass.getMethods()) {
if (!(method instanceof PsiAnnotationMethod)) continue;
final String attrName = method.getName();
for (PsiNameValuePair existingAttr : existingPairs) {
if (PsiTreeUtil.isAncestor(existingAttr, insertedElement, false)) break;
if (Comparing.equal(existingAttr.getName(), attrName)
|| PsiAnnotation.DEFAULT_REFERENCED_METHOD_NAME.equals(attrName)
&& existingAttr.getName() == null) continue methods;
}
LookupElementBuilder element =
LookupElementBuilder.createWithIcon(method)
.withInsertHandler(
new InsertHandler<LookupElement>() {
@Override
public void handleInsert(InsertionContext context, LookupElement item) {
final Editor editor = context.getEditor();
TailType.EQ.processTail(editor, editor.getCaretModel().getOffset());
context.setAddCompletionChar(false);
context.commitDocument();
PsiAnnotationParameterList paramList =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(),
context.getStartOffset(),
PsiAnnotationParameterList.class,
false);
if (paramList != null
&& paramList.getAttributes().length > 0
&& paramList.getAttributes()[0].getName() == null) {
int valueOffset =
paramList.getAttributes()[0].getTextRange().getStartOffset();
context
.getDocument()
.insertString(
valueOffset, PsiAnnotation.DEFAULT_REFERENCED_METHOD_NAME);
TailType.EQ.processTail(
editor,
valueOffset + PsiAnnotation.DEFAULT_REFERENCED_METHOD_NAME.length());
}
}
});
PsiAnnotationMemberValue defaultValue = ((PsiAnnotationMethod) method).getDefaultValue();
if (defaultValue != null) {
Object constant =
JavaPsiFacade.getInstance(method.getProject())
.getConstantEvaluationHelper()
.computeConstantExpression(defaultValue);
if (constant != null) {
element =
element.withTailText(
" default " + (constant instanceof String ? "\"" + constant + "\"" : constant),
true);
}
}
result.addElement(element);
}
}
}