< > BotCompany Repo | #1011313 // hijackPrint - hijack the print function for a function call, return printed contents; can be nested

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (5020L/28K).

sS lambda0Like hijackPrint(Runnable r) {
  new StringBuilder buf;
  O old = interceptPrintInThisThread(new F1<S, Bool>() {
    public Bool get(S s) {
      buf.append(s);
      false;
    }
  });
  try {
    r?.run();
    ret str(buf);
  } finally {
    interceptPrintInThisThread(old);
  }
}

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