@Override
public Icon getIcon() {
Icon icon = myIcon;
if (icon == null) {
PsiElement psiElement = getElement();
myIcon = icon = psiElement != null && psiElement.isValid() ? psiElement.getIcon(0) : null;
}
return icon;
}
@Override
public boolean isValid() {
PsiElement element = getElement();
if (element == null || !element.isValid()) {
return false;
}
for (UsageInfo usageInfo : getMergedInfos()) {
if (usageInfo.getSegment() == null) return false;
}
return true;
}