public static CompletionResultSet addJavaSorting(
final CompletionParameters parameters, CompletionResultSet result) {
final PsiElement position = parameters.getPosition();
final ExpectedTypeInfo[] expectedTypes =
PsiJavaPatterns.psiElement()
.beforeLeaf(PsiJavaPatterns.psiElement().withText("."))
.accepts(position)
? ExpectedTypeInfo.EMPTY_ARRAY
: JavaSmartCompletionContributor.getExpectedTypes(parameters);
final CompletionType type = parameters.getCompletionType();
final boolean smart = type == CompletionType.SMART;
final boolean afterNew = JavaSmartCompletionContributor.AFTER_NEW.accepts(position);
List<LookupElementWeigher> afterProximity = new ArrayList<LookupElementWeigher>();
afterProximity.add(new PreferContainingSameWords(expectedTypes));
if (smart) {
afterProximity.add(new PreferFieldsAndGetters());
}
afterProximity.add(new PreferShorter(expectedTypes));
CompletionSorter sorter = CompletionSorter.defaultSorter(parameters, result.getPrefixMatcher());
if (!smart && afterNew) {
sorter = sorter.weighBefore("liftShorter", new PreferExpected(true, expectedTypes));
} else if (PsiTreeUtil.getParentOfType(position, PsiReferenceList.class) == null) {
sorter =
((CompletionSorterImpl) sorter)
.withClassifier("liftShorterClasses", true, new LiftShorterClasses(position));
}
if (smart) {
sorter =
sorter.weighAfter("priority", new PreferDefaultTypeWeigher(expectedTypes, parameters));
}
List<LookupElementWeigher> afterPrefix = ContainerUtil.newArrayList();
if (!smart) {
ContainerUtil.addIfNotNull(afterPrefix, preferStatics(position, expectedTypes));
}
ContainerUtil.addIfNotNull(afterPrefix, recursion(parameters, expectedTypes));
if (!smart && !afterNew) {
afterPrefix.add(new PreferExpected(false, expectedTypes));
}
Collections.addAll(
afterPrefix,
new PreferByKindWeigher(type, position),
new PreferSimilarlyEnding(expectedTypes),
new PreferNonGeneric(),
new PreferAccessible(position),
new PreferSimple(),
new PreferEnumConstants(parameters));
sorter =
sorter.weighAfter(
"prefix", afterPrefix.toArray(new LookupElementWeigher[afterPrefix.size()]));
sorter =
sorter.weighAfter(
"proximity", afterProximity.toArray(new LookupElementWeigher[afterProximity.size()]));
return result.withRelevanceSorter(sorter);
}
public static CompletionResultSet addJavaSorting(
final CompletionParameters parameters, CompletionResultSet result) {
String prefix = result.getPrefixMatcher().getPrefix();
final PsiElement position = parameters.getPosition();
final ExpectedTypeInfo[] expectedTypes =
PsiJavaPatterns.psiElement()
.beforeLeaf(PsiJavaPatterns.psiElement().withText("."))
.accepts(position)
? ExpectedTypeInfo.EMPTY_ARRAY
: JavaSmartCompletionContributor.getExpectedTypes(parameters);
final CompletionType type = parameters.getCompletionType();
final boolean smart = type == CompletionType.SMART;
final boolean afterNew = JavaSmartCompletionContributor.AFTER_NEW.accepts(position);
List<LookupElementWeigher> afterNegativeStats = new ArrayList<LookupElementWeigher>();
if (!smart) {
ContainerUtil.addIfNotNull(afterNegativeStats, preferStatics(position));
}
afterNegativeStats.add(new PreferLocalVariablesLiteralsAndAnnoMethodsWeigher(type, position));
ContainerUtil.addIfNotNull(afterNegativeStats, recursion(parameters, expectedTypes));
if (!smart && !afterNew) {
afterNegativeStats.add(new PreferExpected(false, expectedTypes));
}
afterNegativeStats.add(new PreferSimilarlyEnding(expectedTypes, prefix));
List<LookupElementWeigher> afterProximity = new ArrayList<LookupElementWeigher>();
afterProximity.add(new PreferContainingSameWords(expectedTypes));
if (smart) {
afterProximity.add(new PreferFieldsAndGetters());
}
afterProximity.add(new PreferShorter(expectedTypes, prefix));
CompletionSorter sorter = CompletionSorter.defaultSorter(parameters, result.getPrefixMatcher());
if (!smart && afterNew) {
sorter = sorter.weighBefore("liftShorter", new PreferExpected(true, expectedTypes));
} else {
final ProjectFileIndex fileIndex =
ProjectRootManager.getInstance(position.getProject()).getFileIndex();
sorter =
((CompletionSorterImpl) sorter)
.withClassifier(
"liftShorter",
true,
new ClassifierFactory<LookupElement>("liftShorterClasses") {
@Override
public Classifier<LookupElement> createClassifier(
Classifier<LookupElement> next) {
return new LiftShorterItemsClassifier(
next,
new LiftShorterItemsClassifier.LiftingCondition() {
@Override
public boolean shouldLift(
LookupElement shorterElement,
LookupElement longerElement,
ProcessingContext context) {
if (super.shouldLift(shorterElement, longerElement, context)) {
return true;
}
Object object = shorterElement.getObject();
if (object instanceof PsiClass) {
PsiFile file = ((PsiClass) object).getContainingFile();
if (file != null) {
VirtualFile vFile = file.getOriginalFile().getVirtualFile();
if (vFile != null && fileIndex.isInSource(vFile)) {
return true;
}
}
}
return false;
}
});
}
});
}
if (smart) {
sorter =
sorter.weighBefore(
"negativeStats", new PreferDefaultTypeWeigher(expectedTypes, parameters));
}
sorter =
sorter.weighAfter(
"negativeStats",
afterNegativeStats.toArray(new LookupElementWeigher[afterNegativeStats.size()]));
sorter =
sorter.weighAfter(
"prefix",
new PreferNonGeneric(),
new PreferAccessible(position),
new PreferSimple(),
new PreferEnumConstants(parameters));
sorter =
sorter.weighAfter(
"proximity", afterProximity.toArray(new LookupElementWeigher[afterProximity.size()]));
return result.withRelevanceSorter(sorter);
}