boolean (@NotNull DocumentReference reference) { // `DocumentReference.getDocument()` can throw if it refers to a deleted file // (see an implementation for `DocumentReferenceByVirtualFile`), // so it's safer to compare two virtual files first DocumentReference affected = getAffectedDocuments()[0]; VirtualFile affectedFile = affected.getFile(); if (affectedFile != null) { return affectedFile.equals(reference.getFile()); } else { return affected.getDocument() == reference.getDocument(); } }