private static Set<LookupElement> suggestQualifierItems(
CompletionParameters parameters,
PsiJavaCodeReferenceElement qualifier,
ElementFilter filter) {
String referenceName = qualifier.getReferenceName();
if (referenceName == null) {
return Collections.emptySet();
}
PrefixMatcher qMatcher = new CamelHumpMatcher(referenceName);
Set<LookupElement> plainVariants =
JavaSmartCompletionContributor.completeReference(
qualifier, qualifier, filter, true, true, parameters, qMatcher);
for (PsiClass aClass :
PsiShortNamesCache.getInstance(qualifier.getProject())
.getClassesByName(referenceName, qualifier.getResolveScope())) {
plainVariants.add(JavaClassNameCompletionContributor.createClassLookupItem(aClass, true));
}
if (!plainVariants.isEmpty()) {
return plainVariants;
}
final Set<LookupElement> allClasses = new LinkedHashSet<LookupElement>();
PsiElement qualifierName = qualifier.getReferenceNameElement();
if (qualifierName != null) {
JavaClassNameCompletionContributor.addAllClasses(
parameters.withPosition(qualifierName, qualifierName.getTextRange().getEndOffset()),
true,
qMatcher,
new CollectConsumer<LookupElement>(allClasses));
}
return allClasses;
}
@NotNull
@Override
protected List<PsiField> getMembersToImport(boolean applicableOnly) {
final Project project = myRef.getProject();
PsiShortNamesCache cache = PsiShortNamesCache.getInstance(project);
final PsiJavaCodeReferenceElement element = myRef.getElement();
String name = element != null ? element.getReferenceName() : null;
if (name == null) return Collections.emptyList();
final StaticMembersProcessor<PsiField> processor =
new StaticMembersProcessor<PsiField>(element) {
@Override
protected boolean isApplicable(PsiField field, PsiElement place) {
final PsiType expectedType = getExpectedType();
return expectedType == null
|| TypeConversionUtil.isAssignable(expectedType, field.getType());
}
};
cache.processFieldsWithName(name, processor, element.getResolveScope(), null);
return processor.getMembersToImport(applicableOnly);
}
