function writableStartedClosed() {
      const destClosed = new TypeError(errDestinationStreamClosed);
      if (!preventCancel) {
        shutdownWithAction(
            ReadableStreamCancel, [readable, destClosed], destClosed, true);
      } else {
        shutdown(destClosed, true);
      }
    }
// These steps are from "Closing must be propagated backward".
These steps are from "Closing must be propagated backward".
These steps are from " Closing must be propagated backward " .
function writableStartedClosed() {
      const destClosed = new TypeError(errDestinationStreamClosed);
      if (!preventCancel) {
        shutdownWithAction(
            ReadableStreamCancel, [readable, destClosed], destClosed, true);
      } else {
        shutdown(destClosed, true);
      }
    }
function writableStartedClosed ( ) { const destClosed = new TypeError ( errDestinationStreamClosed ) ; if ( ! preventCancel ) { shutdownWithAction ( ReadableStreamCancel , [ readable , destClosed ] , destClosed , true ) ; } else { shutdown ( destClosed , true ) ; } }
These steps are from "Closing must be propagated backward".
These steps are from " Closing must be propagated backward " .