sclass LASCompileResult {

  settable S script;

  settable GazelleV_LeftArrowScriptParser parser;

  settable Throwable compileError;

  /*settable broken*/ GazelleV_LeftArrowScript.Script parsedScript;

  RunResultWithTimestamps compileLog;

  toString {

    if (compileError != null) ret errorToString();

    if (parsedScript == null) ret "Not compiled yet";

    ret "Compiled OK" + (compileLog == null ? ""

      : " in " + n2(max(1, compileLog.duration().toMillis())) + " ms";

  }

  bool hasError() { ret compileError != null; }

  S errorToString() {

    ret exceptionToStringShorter_dontDropOuterExceptions(compileError);

  }

  bool runnable() { ret parsedScript != null; }

  void compile() {  

    compileLog = runResultWithTimestamps_dontPrintStackTrace(-> {

      if (parser == null)

        parser = makeParser();

      ret parsedScript = parser.parse(script);

    });

    if (compileLog.isError()) {

      var e = compileLog.getError();

      compileError(e);

    }

  }

  GazelleV_LeftArrowScript.Script parsedScript aka get() { ret parsedScript; }

  GazelleV_LeftArrowScript.Script parsedScriptMandatory() {

    if (compileError != null) fail(compileError);

    ret parsedScript;

  }

  swappable GazelleV_LeftArrowScriptParser makeParser() { null; }

  LineAndColumn errorLineAndCol() {

    ret parseLineAndColumn(str(compileError));

  }

  Timestamp compilationStart() {

    ret compileLog?.started;

  }

}