void (@NotNull CompletionParameters parameters, @NotNull ProcessingContext context, @NotNull CompletionResultSet result) { final PsiClass psiClass = PsiTreeUtil.getParentOfType(parameters.getPosition(), PsiClass.class); assert psiClass != null; for (Pair<String, TailType> trinity : VARIANTS) { String fieldName = trinity.first; if (psiClass.findFieldByName(fieldName, false) == null) { result.addElement(TailTypeDecorator.withTail(LookupElementBuilder.create(fieldName), trinity.second)); } } }