public boolean addItem(LookupElement item, PrefixMatcher matcher) {
LookupElementPresentation presentation = renderItemApproximately(item);
if (containsDummyIdentifier(presentation.getItemText())
|| containsDummyIdentifier(presentation.getTailText())
|| containsDummyIdentifier(presentation.getTypeText())) {
return false;
}
myMatchers.put(item, matcher);
updateLookupWidth(item, presentation);
synchronized (myList) {
myArranger.addElement(this, item, presentation);
}
return true;
}
