@NotNull
private static Set<String> sortMatching(
@NotNull PrefixMatcher matcher, @NotNull Collection<String> names, @NotNull GoFile file) {
ProgressManager.checkCanceled();
String prefix = matcher.getPrefix();
if (prefix.isEmpty()) return ContainerUtil.newLinkedHashSet(names);
Set<String> packagesWithAliases = ContainerUtil.newHashSet();
for (Map.Entry<String, Collection<GoImportSpec>> entry : file.getImportMap().entrySet()) {
for (GoImportSpec spec : entry.getValue()) {
String alias = spec.getAlias();
if (spec.isDot() || alias != null) {
packagesWithAliases.add(entry.getKey());
break;
}
}
}
List<String> sorted = ContainerUtil.newArrayList();
for (String name : names) {
if (matcher.prefixMatches(name) || packagesWithAliases.contains(substringBefore(name, '.'))) {
sorted.add(name);
}
}
ProgressManager.checkCanceled();
Collections.sort(sorted, String.CASE_INSENSITIVE_ORDER);
ProgressManager.checkCanceled();
LinkedHashSet<String> result = new LinkedHashSet<String>();
for (String name : sorted) {
if (matcher.isStartMatch(name)) {
result.add(name);
}
}
ProgressManager.checkCanceled();
result.addAll(sorted);
return result;
}
@Override
public void fillCompletionVariants(
final CompletionParameters parameters, final CompletionResultSet _result) {
if (parameters.getCompletionType() != CompletionType.BASIC) {
return;
}
final PsiElement position = parameters.getPosition();
if (!isInJavaContext(position)) {
return;
}
if (AFTER_NUMBER_LITERAL.accepts(position)
|| UNEXPECTED_REFERENCE_AFTER_DOT.accepts(position)) {
_result.stopHere();
return;
}
final CompletionResultSet result = JavaCompletionSorting.addJavaSorting(parameters, _result);
if (ANNOTATION_ATTRIBUTE_NAME.accepts(position)
&& !JavaCompletionData.isAfterPrimitiveOrArrayType(position)) {
JavaCompletionData.addExpectedTypeMembers(parameters, result);
completeAnnotationAttributeName(result, position, parameters);
result.stopHere();
return;
}
final InheritorsHolder inheritors = new InheritorsHolder(position, result);
if (JavaSmartCompletionContributor.IN_TYPE_ARGS.accepts(position)) {
new TypeArgumentCompletionProvider(false, inheritors)
.addCompletions(parameters, new ProcessingContext(), result);
}
PrefixMatcher matcher = result.getPrefixMatcher();
if (JavaSmartCompletionContributor.AFTER_NEW.accepts(position)) {
new JavaInheritorsGetter(ConstructorInsertHandler.BASIC_INSTANCE)
.generateVariants(parameters, matcher, inheritors);
}
if (IMPORT_REFERENCE.accepts(position)) {
result.addElement(LookupElementBuilder.create("*"));
}
addKeywords(parameters, result);
Set<String> usedWords = addReferenceVariants(parameters, result, inheritors);
if (psiElement().inside(PsiLiteralExpression.class).accepts(position)) {
PsiReference reference = position.getContainingFile().findReferenceAt(parameters.getOffset());
if (reference == null || reference.isSoft()) {
WordCompletionContributor.addWordCompletionVariants(result, parameters, usedWords);
}
}
JavaGenerateMemberCompletionContributor.fillCompletionVariants(parameters, result);
addAllClasses(parameters, result, inheritors);
final PsiElement parent = position.getParent();
if (parent instanceof PsiReferenceExpression
&& !((PsiReferenceExpression) parent).isQualified()
&& parameters.isExtendedCompletion()
&& StringUtil.isNotEmpty(matcher.getPrefix())) {
new JavaStaticMemberProcessor(parameters).processStaticMethodsGlobally(matcher, result);
}
result.stopHere();
}