protected void completeReference(
final PsiReference reference,
final PsiElement position,
final Set<LookupElement> set,
final TailType tailType,
final PsiFile file,
final ElementFilter filter,
final CompletionVariant variant) {
if (reference instanceof PsiMultiReference) {
for (PsiReference ref : getReferences((PsiMultiReference) reference)) {
completeReference(ref, position, set, tailType, file, filter, variant);
}
} else if (reference instanceof PsiDynaReference) {
for (PsiReference ref : ((PsiDynaReference<?>) reference).getReferences()) {
completeReference(ref, position, set, tailType, file, filter, variant);
}
} else {
final Object[] completions = reference.getVariants();
if (completions == null) return;
for (Object completion : completions) {
if (completion == null) {
LOG.assertTrue(
false,
"Position="
+ position
+ "\n;Reference="
+ reference
+ "\n;variants="
+ Arrays.toString(completions));
}
if (completion instanceof PsiElement) {
final PsiElement psiElement = (PsiElement) completion;
if (filter.isClassAcceptable(psiElement.getClass())
&& filter.isAcceptable(psiElement, position)) {
addLookupItem(set, tailType, completion, file, variant);
}
} else {
if (completion instanceof LookupItem) {
final Object o = ((LookupItem) completion).getObject();
if (o instanceof PsiElement) {
if (!filter.isClassAcceptable(o.getClass()) || !filter.isAcceptable(o, position))
continue;
}
}
addLookupItem(set, tailType, completion, file, variant);
}
}
}
}
public void addKeywordVariants(
Set<CompletionVariant> set, PsiElement position, final PsiFile file) {
set.addAll(Arrays.asList(findVariants(position, file)));
}