View Engine Change Detection vs. CheckNoChanges

check_no_changes.ts

  markProjectedViewsForCheck(view);
  Services.updateDirectives(view, CheckType.CheckNoChanges);
  execEmbeddedViewsAction(view, ViewAction.CheckNoChanges);
  
  Services.updateRenderer(view, CheckType.CheckNoChanges);
  execComponentViewsAction(view, ViewAction.CheckNoChanges);
  
  // Note: We don't check queries for changes as we didn't do this in v2.x.
  // TODO(tbosch): investigate if we can enable the check again in v5.x with a nicer error message.
  view.state &= ~(ViewState.CheckProjectedViews | ViewState.CheckProjectedView);

detect_changes.ts

  markProjectedViewsForCheck(view);
  Services.updateDirectives(view, CheckType.CheckAndUpdate);
  execEmbeddedViewsAction(view, ViewAction.CheckAndUpdate);
  
  // -> Check and Update **content** queries (not done in check no changes)
  // -> Lifecycle hooks (not done in check no changes) 
  
  Services.updateRenderer(view, CheckType.CheckAndUpdate);
  execComponentViewsAction(view, ViewAction.CheckAndUpdate);
  
  // -> Check and Update **view** queries (not done in check no changes)
  // -> Lifecycle hooks (not done in check no changes) 
  // -> Reset dirty state (not done in check np changes)

  view.state &= ~(ViewState.CheckProjectedViews | ViewState.CheckProjectedView);
  shiftInitState(view, ViewState.InitState_CallingAfterViewInit, ViewState.InitState_AfterInit);