!7

set flag DynModule. // for transpilation

cmodule JavaEval extends DynPrintLog {
  S expression;
  bool realEval = true;
  transient bool calculating;
  transient O value;
  transient JTextArea taInput;
  transient Throwable error;
  
  visual withMargin(jvsplit(
    centerAndEastWithMarginInbetween(
      onCtrlEnter(taInput = jEnableUndoRedo(typeWriterTextArea(expression)), rThread evalIt),
      withTopMargin(3, vstackWithSpacing(5,
        withBottomMargin(fontSizePlus(4, makeBold(toolTip("Evaluate the code", jbutton("EVAL", rThread evalIt))))),
        toolTip("Evaluate with latest standard functions", jbutton("Medium", rThread { mediumRefresh(); evalIt() })),
        toolTip("Evaluate in latest language version", jbutton("Fresh", rThread { refresh(); evalIt() })),
        withToolTip("Use the real Java compiler, don't use shortcuts - just leave checked if in doubt", dm_fieldCheckBox("Real", 'realEval))))),
    super));

  void mediumRefresh enter {
    dm_mediumRefreshTranspiler();
    loadFunctions_clearCache();
    print("Medium-refreshed translator.");
  }
  
  void refresh enter {
    dm_refreshTranspiler();
    loadFunctions_clearCache();
    print("Refreshed translator.");
  }
  
  void evalIt enter {
    if (calculating) ret;
    calculating = true;
    temp afterwards(r { calculating = false });
    dm_javaEvalModule_doIt(gtt(taInput), realEval);
  }
}

Began life as a copy of #1017551