Function commitClassSnapshot

docs/index.js:29626–29670

(finishedWork, current)

      return instance.getSnapshotBeforeUpdate(prevProps, prevState);
    }
    function commitClassSnapshot(finishedWork, current) {
      var prevProps = current.memoizedProps,
        prevState = current.memoizedState;
      current = finishedWork.stateNode;
      finishedWork.type.defaultProps ||
        "ref" in finishedWork.memoizedProps ||
        didWarnAboutReassigningProps ||
        (current.props !== finishedWork.memoizedProps &&
          console.error(
            "Expected %s props to match memoized props before getSnapshotBeforeUpdate. This might either be because of a bug in React, or because a component reassigns its own `this.props`. Please file an issue.",
            getComponentNameFromFiber(finishedWork) || "instance"
          ),
        current.state !== finishedWork.memoizedState &&
          console.error(
            "Expected %s state to match memoized state before getSnapshotBeforeUpdate. This might either be because of a bug in React, or because a component reassigns its own `this.state`. Please file an issue.",
            getComponentNameFromFiber(finishedWork) || "instance"
          ));
      try {
        var resolvedPrevProps = resolveClassComponentProps(
          finishedWork.type,
          prevProps,
          finishedWork.elementType === finishedWork.type
        );
        var snapshot = runWithFiberInDEV(
          finishedWork,
          callGetSnapshotBeforeUpdates,
          current,
          resolvedPrevProps,
          prevState
        );
        prevProps = didWarnAboutUndefinedSnapshotBeforeUpdate;
        void 0 !== snapshot ||
          prevProps.has(finishedWork.type) ||
          (prevProps.add(finishedWork.type),
          runWithFiberInDEV(finishedWork, function () {
            console.error(
              "%s.getSnapshotBeforeUpdate(): A snapshot value (or null) must be returned. You have returned undefined.",
              getComponentNameFromFiber(finishedWork)
            );
          }));
        current.__reactInternalSnapshotBeforeUpdate = snapshot;
      } catch (error) {
        captureCommitPhaseError(finishedWork, finishedWork.return, error);
      }
    }
    function safelyCallComponentWillUnmount(
      current,
      nearestMountedAncestor,