code: private String getBasicRuntimeChecks(final CommandLineCompilerConfiguration compilerConfig) {
      String checks = "0";
      final String[] args = compilerConfig.getPreArguments();
      for (final String arg : args) {
        if ("/RTCs".equals(arg)) {
          checks = "1";
        }
        if ("/RTCu".equals(arg)) {
          checks = "2";
        }
        if ("/RTC1".equals(arg) || "/GZ".equals(arg)) {
          checks = "3";
        }
      }
      return checks;
    }
docs: Get value of BasicRuntimeChecks property.
  
  @param compilerConfig
  compiler configuration.
  @return value of BasicRuntimeChecks property.