Angular view container删除view執行個體的過程

/**
 * Detaches a view from a container.
 *
 * This method removes the view from the container's array of active views. It also
 * removes the view's elements from the DOM.
 *
 * @param {?} lContainer The container from which to detach a view
 * @param {?} removeIndex The index of the view to detach
 * @return {?} Detached LView instance.
 */
function detachView(lContainer, removeIndex) {
    if (lContainer.length <= CONTAINER_HEADER_OFFSET)
        return;
    /** @type {?} */
    const indexInContainer = CONTAINER_HEADER_OFFSET + removeIndex;
    /** @type {?} */
    const viewToDetach = lContainer[indexInContainer];
    if (viewToDetach) {
        /** @type {?} */
        const declarationLContainer = viewToDetach[DECLARATION_LCONTAINER];
        if (declarationLContainer !== null && declarationLContainer !== lContainer) {
            detachMovedView(declarationLContainer, viewToDetach);
        }
        if (removeIndex > 0) {
            lContainer[indexInContainer - 1][NEXT] = (/** @type {?} */ (viewToDetach[NEXT]));
        }
        /** @type {?} */
        const removedLView = removeFromArray(lContainer, CONTAINER_HEADER_OFFSET + removeIndex);
        addRemoveViewFromContainer(viewToDetach[TVIEW], viewToDetach, false, null);
        // notify query that a view has been removed
        /** @type {?} */
        const lQueries = removedLView[QUERIES];
        if (lQueries !== null) {
            lQueries.detachView(removedLView[TVIEW]);
        }
        viewToDetach[PARENT] = null;
        viewToDetach[NEXT] = null;
        // Unsets the attached flag
        viewToDetach[FLAGS] &= ~128 /* Attached */;
    }
    return viewToDetach;
}