< > BotCompany Repo | #1012290 // hijackPrint_tee - hijack the print function for a function call, return printed contents, also print normally

JavaX fragment (include)

static S hijackPrint_tee(Runnable r) {
  final new StringBuilder buf;
  O old = interceptPrintInThisThread(new F1<S, Bool>() {
    Bool get(S s) {
      buf.append(s);
      true;
    }
  });
  try {
    callF(r);
    ret str(buf);
  } finally {
    interceptPrintInThisThread(old);
  }
}

Author comment

Began life as a copy of #1011313

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