clang::Token GetTokenBefore(const clang::SourceManager &sources,
                             clang::SourceLocation loc) {
   clang::Token token;
   token.setKind(clang::tok::unknown);
   clang::LangOptions lang_options;
   loc = loc.getLocWithOffset(-1);
   while (loc != sources.getLocForStartOfFile(sources.getFileID(loc))) {
     loc = clang::Lexer::GetBeginningOfToken(loc, sources, lang_options);
     if (!clang::Lexer::getRawToken(loc, token, sources, lang_options)) {
       if (!token.is(clang::tok::comment)) {
         break;
       }
     }
     loc = loc.getLocWithOffset(-1);
   }
   return token;
 }
clang::Token GetTokenAfterLocation(clang::SourceLocation loc,
                                   const clang::SourceManager &source_manager) {
  clang::Token token;
  token.setKind(clang::tok::unknown);
  clang::LangOptions lang_options;
  loc = loc.getLocWithOffset(1);
  while (loc !=
         source_manager.getLocForEndOfFile(source_manager.getFileID(loc))) {
    if (!clang::Lexer::getRawToken(loc, token, source_manager, lang_options)) {
      if (!token.is(clang::tok::comment)) {
        break;
      }
      loc = clang::Lexer::getLocForEndOfToken(token.getLocation(), /*Offset=*/0,
                                              source_manager, lang_options);
    } else {
      loc = loc.getLocWithOffset(1);
    }
  }
  return token;
}
Пример #3
0
clang::Token GetTokenBeforeLocation(clang::SourceLocation loc,
                                    const clang::ASTContext& ast_context) {
    clang::Token token;
    token.setKind(clang::tok::unknown);
    clang::LangOptions lang_options = ast_context.getLangOpts();
    const clang::SourceManager& source_manager = ast_context.getSourceManager();
    clang::SourceLocation file_start_loc =
        source_manager.getLocForStartOfFile(source_manager.getFileID(loc));
    loc = loc.getLocWithOffset(-1);
    while (loc != file_start_loc) {
        loc = clang::Lexer::GetBeginningOfToken(loc, source_manager, lang_options);
        if (!clang::Lexer::getRawToken(loc, token, source_manager, lang_options)) {
            if (!token.is(clang::tok::comment)) {
                break;
            }
        }
        loc = loc.getLocWithOffset(-1);
    }
    return token;
}