public static StatisticsUpdate collectStatisticChanges(LookupElement item, final Lookup lookup) {
applyLastCompletionStatisticsUpdate();
final StatisticsInfo base = StatisticsWeigher.getBaseStatisticsInfo(item, null);
if (base == StatisticsInfo.EMPTY) {
return new StatisticsUpdate(StatisticsInfo.EMPTY);
}
StatisticsUpdate update =
new StatisticsUpdate(
StatisticsWeigher.composeStatsWithPrefix(base, lookup.itemPattern(item), true));
ourPendingUpdate = update;
Disposer.register(
update,
new Disposable() {
@Override
public void dispose() {
//noinspection AssignmentToStaticFieldFromInstanceMethod
ourPendingUpdate = null;
}
});
return update;
}
@Override
public void addElement(
Lookup lookup, LookupElement element, LookupElementPresentation presentation) {
StatisticsWeigher.clearBaseStatisticsInfo(element);
final String invariant =
presentation.getItemText()
+ "###"
+ getTailTextOrSpace(presentation)
+ "###"
+ presentation.getTypeText();
element.putUserData(PRESENTATION_INVARIANT, invariant);
CompletionSorterImpl sorter = obtainSorter(element);
Classifier<LookupElement> classifier = myClassifiers.get(sorter);
if (classifier == null) {
myClassifiers.put(sorter, classifier = sorter.buildClassifier(new AlphaClassifier(lookup)));
}
classifier.addElement(element);
super.addElement(lookup, element, presentation);
}