@Nullable
public static DataIndexer<TodoIndexEntry, Integer, FileContent> getTodoIndexer(
FileType fileType, final VirtualFile virtualFile) {
final DataIndexer<TodoIndexEntry, Integer, FileContent> extIndexer;
if (fileType instanceof SubstitutedFileType
&& !((SubstitutedFileType) fileType).isSameFileType()) {
SubstitutedFileType sft = (SubstitutedFileType) fileType;
extIndexer =
new CompositeTodoIndexer(
getTodoIndexer(sft.getOriginalFileType(), virtualFile),
getTodoIndexer(sft.getFileType(), virtualFile));
} else {
extIndexer = TodoIndexers.INSTANCE.forFileType(fileType);
}
if (extIndexer != null) {
return extIndexer;
}
if (fileType instanceof LanguageFileType) {
final Language lang = ((LanguageFileType) fileType).getLanguage();
final ParserDefinition parserDef = LanguageParserDefinitions.INSTANCE.forLanguage(lang);
final TokenSet commentTokens = parserDef != null ? parserDef.getCommentTokens() : null;
if (commentTokens != null) {
return new TokenSetTodoIndexer(commentTokens, virtualFile);
}
}
if (fileType instanceof CustomSyntaxTableFileType) {
return new TokenSetTodoIndexer(ABSTRACT_FILE_COMMENT_TOKENS, virtualFile);
}
return null;
}
public static boolean isTodoIndexerRegistered(@NotNull FileType fileType) {
return TodoIndexers.INSTANCE.forFileType(fileType) != null
|| fileType instanceof InternalFileType;
}