From 14ac0163a182e3d44e7fcfe77678f32258b3e913 Mon Sep 17 00:00:00 2001
From: * <8>
Date: Tue, 25 Jan 2022 18:06:11 +0800
Subject: [PATCH 1/2] Match-id-faffd764b594db29fe1fde20f07ce87444d16c7e

---
 libs/horizon/src/dom/DOMInternalKeys.ts       |  3 +-
 libs/horizon/src/dom/DOMOperator.ts           |  8 +--
 .../DOMPropertiesHandler.ts                   |  8 +--
 .../dom/DOMPropertiesHandler/StyleHandler.ts  | 34 +++++------
 .../DOMPropertiesHandler/UpdateCommonProp.ts  | 16 +++--
 libs/horizon/src/dom/SelectionRangeHandler.ts |  8 +--
 .../src/dom/validators/PropertiesData.ts      | 10 ++--
 .../src/dom/validators/ValidateProps.ts       | 10 ++--
 .../dom/valueHandler/SelectValueHandler.ts    | 18 +++---
 libs/horizon/src/renderer/Types.ts            |  1 -
 .../src/renderer/taskExecutor/BrowserAsync.ts |  3 +-
 .../src/renderer/taskExecutor/RenderQueue.ts  | 48 +++++++--------
 .../src/renderer/taskExecutor/TaskExecutor.ts | 59 ++++++++++---------
 .../src/renderer/taskExecutor/TaskQueue.ts    | 36 +++++------
 .../src/renderer/vnode/VNodeCreator.ts        |  2 +-
 .../src/renderer/vnode/VNodeShouldUpdate.ts   | 26 ++++----
 16 files changed, 145 insertions(+), 145 deletions(-)

diff --git a/libs/horizon/src/dom/DOMInternalKeys.ts b/libs/horizon/src/dom/DOMInternalKeys.ts
index 309fd09b..2be5522e 100644
--- a/libs/horizon/src/dom/DOMInternalKeys.ts
+++ b/libs/horizon/src/dom/DOMInternalKeys.ts
@@ -24,11 +24,12 @@ const internalKeys = {
 };
 
 // 通过 VNode 实例获取 DOM 节点
-export function getDom(vNode: VNode): Element | Text | void {
+export function getDom(vNode: VNode): Element | Text | null {
   const {tag} = vNode;
   if (tag === DomComponent || tag === DomText) {
     return vNode.realNode;
   }
+  return null;
 }
 
 // 将 VNode 属性相关信息挂到 DOM 对象的特定属性上
diff --git a/libs/horizon/src/dom/DOMOperator.ts b/libs/horizon/src/dom/DOMOperator.ts
index 68bf83b8..71204206 100644
--- a/libs/horizon/src/dom/DOMOperator.ts
+++ b/libs/horizon/src/dom/DOMOperator.ts
@@ -5,7 +5,7 @@ import {
 import {
   createDom,
 } from './utils/DomCreator';
-import { getSelectionInfo, resetSelectionRange, selectionData } from './SelectionRangeHandler';
+import { getSelectionInfo, resetSelectionRange, SelectionData } from './SelectionRangeHandler';
 import { isElement, isComment, isDocument, isDocumentFragment, getDomTag, shouldAutoFocus } from './utils/Common';
 import { NSS } from './utils/DomCreator';
 import { adjustStyleValue } from './DOMPropertiesHandler/StyleHandler';
@@ -37,7 +37,7 @@ export type Props = {
 
 export type Container = (Element & { _treeRoot?: VNode }) | (Document & { _treeRoot?: VNode });
 
-let selectionInfo: null | selectionData = null;
+let selectionInfo: null | SelectionData = null;
 
 function getChildNS(parentNS: string | null, tagName: string): string {
   if (parentNS === NSS.svg && tagName === 'foreignObject') {
@@ -54,12 +54,12 @@ function getChildNS(parentNS: string | null, tagName: string): string {
 }
 
 // 获取容器
-export function getNSCtx(dom?: Container, parentNS: string, type: string): string {
+export function getNSCtx(parentNS: string, type: string, dom: Container | undefined): string {
   return dom ? getChildNS(dom.namespaceURI ?? null, dom.nodeName) : getChildNS(parentNS, type);
 }
 
 export function prepareForSubmit(): void {
-  selectionInfo = <selectionData>getSelectionInfo();
+  selectionInfo = <SelectionData>getSelectionInfo();
 }
 
 export function resetAfterSubmit(): void {
diff --git a/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts b/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
index 5016d811..5ec79c33 100644
--- a/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
+++ b/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
@@ -8,7 +8,7 @@ import {
 } from '../../event/EventBinding';
 import { isEventProp, isNativeElement } from '../validators/ValidateProps';
 
-function updateOneProp(dom, propName, propVal, isNativeTag, isInit?: boolean) {
+function updateOneProp(dom, propName, isNativeTag, propVal?, isInit?: boolean) {
   if (propName === 'style') {
     setStyles(dom, propVal);
   } else if (propName === 'dangerouslySetInnerHTML') {
@@ -42,7 +42,7 @@ export function setDomProps(
     const propName = keysOfProps[i];
     const propVal = props[propName];
 
-    updateOneProp(dom, propName, propVal, isNativeTag, true);
+    updateOneProp(dom, propName, isNativeTag, propVal, true);
   }
 }
 
@@ -55,7 +55,7 @@ export function updateDomProps(
   for (let i = 0; i < changeList.length; i++) {
     const { propName, propVal } = changeList[i];
 
-    updateOneProp(dom, propName, propVal, isNativeTag);
+    updateOneProp(dom, propName, isNativeTag, propVal);
   }
 }
 
@@ -111,7 +111,7 @@ export function compareProps(
   for (let i = 0; i < keysOfNewProps.length; i++) {
     const propName = keysOfNewProps[i];
     const newPropValue = newProps[propName];
-    const oldPropValue = oldProps != null ? oldProps[propName] : undefined;
+    const oldPropValue = oldProps != null ? oldProps[propName] : null;
 
     if (newPropValue === oldPropValue || (newPropValue == null && oldPropValue == null)) {
       // 新旧属性值未发生变化，或者新旧属性皆为空值，不需要进行处理
diff --git a/libs/horizon/src/dom/DOMPropertiesHandler/StyleHandler.ts b/libs/horizon/src/dom/DOMPropertiesHandler/StyleHandler.ts
index 23e1b91c..ae576bfe 100644
--- a/libs/horizon/src/dom/DOMPropertiesHandler/StyleHandler.ts
+++ b/libs/horizon/src/dom/DOMPropertiesHandler/StyleHandler.ts
@@ -1,3 +1,20 @@
+/**
+ * 对一些没有写单位的样式进行适配，例如：width: 10 => width: 10px
+ * 对空值或布尔值进行适配，转为空字符串
+ * 去掉多余空字符
+ */
+ export function adjustStyleValue(name, value) {
+  let validValue = value;
+
+  if (typeof value === 'number' && value !== 0 && isNeedUnitCSS(name)) {
+    validValue = `${value}px`;
+  } else if (value === '' || value == null || typeof value === 'boolean') {
+    validValue = '';
+  }
+
+  return validValue;
+}
+
 /**
  * 设置 DOM 节点的 style 属性
  */
@@ -32,20 +49,3 @@ function isNeedUnitCSS(propName: string) {
     || propName.startsWith('box')
     || propName.endsWith('Opacity'));
 }
-
-/**
- * 对一些没有写单位的样式进行适配，例如：width: 10 => width: 10px
- * 对空值或布尔值进行适配，转为空字符串
- * 去掉多余空字符
- */
-export function adjustStyleValue(name, value) {
-  let validValue = value;
-
-  if (typeof value === 'number' && value !== 0 && isNeedUnitCSS(name)) {
-    validValue = `${value}px`;
-  } else if (value === '' || value == null || typeof value === 'boolean') {
-    validValue = '';
-  }
-
-  return validValue;
-}
diff --git a/libs/horizon/src/dom/DOMPropertiesHandler/UpdateCommonProp.ts b/libs/horizon/src/dom/DOMPropertiesHandler/UpdateCommonProp.ts
index 5ac5e058..a2fe3e9d 100644
--- a/libs/horizon/src/dom/DOMPropertiesHandler/UpdateCommonProp.ts
+++ b/libs/horizon/src/dom/DOMPropertiesHandler/UpdateCommonProp.ts
@@ -18,6 +18,13 @@ const svgHumpAttr = new Set(['allowReorder', 'autoReverse', 'baseFrequency', 'ba
       'stitchTiles', 'surfaceScale','systemLanguage', 'tableValues', 'targetX', 'targetY',
       'textLength','viewBox', 'viewTarget', 'xChannelSelector','yChannelSelector', 'zoomAndPan']);
 
+// 驼峰 变 “-”
+function convertToLowerCase(str) {
+  const replacer = (match, char) => `-${char.toLowerCase()}`;
+  
+  return str.replace(/([A-Z])/g, replacer);
+}
+
 /**
  * 给 dom 设置属性
  * attrName 指代码中属性设置的属性名称（如 class）
@@ -70,12 +77,3 @@ export function updateCommonProp(dom: Element, attrName: string, value: any, isN
     }
   }
 }
-
-// 驼峰 变 “-”
-function convertToLowerCase(str) {
-  const replacer = (match, char) => {
-    return `-${char.toLowerCase()}`;
-  }
-
-  return str.replace(/([A-Z])/g, replacer);
-};
diff --git a/libs/horizon/src/dom/SelectionRangeHandler.ts b/libs/horizon/src/dom/SelectionRangeHandler.ts
index f498174d..62931335 100644
--- a/libs/horizon/src/dom/SelectionRangeHandler.ts
+++ b/libs/horizon/src/dom/SelectionRangeHandler.ts
@@ -105,16 +105,16 @@ export function getSelectionInfo() {
   };
 }
 
-export interface selectionData {
+export interface SelectionData {
   focusedDom: HTMLInputElement | HTMLTextAreaElement | void;
   selectionRange: {
-    start: number;
-    end: number;
+    start: number | null;
+    end: number | null;
   };
 }
 
 // 防止选择范围内的信息因为节点删除或其他原因导致的信息丢失
-export function resetSelectionRange(preSelectionRangeData: selectionData) {
+export function resetSelectionRange(preSelectionRangeData: SelectionData) {
   // 当前 focus 的元素
   const currentFocusedDom = getIFrameFocusedDom();
 
diff --git a/libs/horizon/src/dom/validators/PropertiesData.ts b/libs/horizon/src/dom/validators/PropertiesData.ts
index 9eb90b7b..70645aae 100644
--- a/libs/horizon/src/dom/validators/PropertiesData.ts
+++ b/libs/horizon/src/dom/validators/PropertiesData.ts
@@ -6,7 +6,7 @@ export enum PROPERTY_TYPE {
   STRING, // 普通的字符串类型
   SPECIAL, // 需要特殊处理的属性类型
   BOOLEAN_STR, // 字符串类型的 true false
-};
+}
 
 export type PropDetails = {
   propName: string;
@@ -15,10 +15,6 @@ export type PropDetails = {
   attrNS: string | null;
 };
 
-export function getPropDetails(name: string): PropDetails | null {
-  return propsDetailData[name] || null;
-}
-
 // 属性相关数据
 // 依次为 propertyName、type、attributeName、attributeNamespace，不填则使用默认值
 // type 默认 STRING
@@ -123,3 +119,7 @@ propertiesData.forEach(record => {
     attrNS,
   };
 });
+
+export function getPropDetails(name: string): PropDetails | null {
+  return propsDetailData[name] || null;
+}
diff --git a/libs/horizon/src/dom/validators/ValidateProps.ts b/libs/horizon/src/dom/validators/ValidateProps.ts
index dddd8175..5616f342 100644
--- a/libs/horizon/src/dom/validators/ValidateProps.ts
+++ b/libs/horizon/src/dom/validators/ValidateProps.ts
@@ -34,6 +34,11 @@ function isInvalidBoolean(
   return false;
 }
 
+// 是事件属性
+export function isEventProp(propName) {
+  return propName.substr(0, 2) === 'on';
+}
+
 function isValidProp(tagName, name, value) {
   // 校验事件名称
   if (isEventProp(name)) {
@@ -79,11 +84,6 @@ export function isInvalidValue(
   return false;
 }
 
-// 是事件属性
-export function isEventProp(propName) {
-  return propName.substr(0, 2) === 'on';
-}
-
 // dev模式下校验属性是否合法
 export function validateProps(type, props) {
   if (!props) {
diff --git a/libs/horizon/src/dom/valueHandler/SelectValueHandler.ts b/libs/horizon/src/dom/valueHandler/SelectValueHandler.ts
index 6602e876..75812620 100644
--- a/libs/horizon/src/dom/valueHandler/SelectValueHandler.ts
+++ b/libs/horizon/src/dom/valueHandler/SelectValueHandler.ts
@@ -1,14 +1,5 @@
 import {HorizonSelect, IProperty} from '../utils/Interface';
 
-// 更新 <option>
-function updateValue(options, newValues: any, isMultiple: boolean) {
-  if (isMultiple) {
-    updateMultipleValue(options, newValues);
-  } else {
-    updateSingleValue(options, newValues);
-  }
-}
-
 function updateMultipleValue(options, newValues) {
   const newValueSet = new Set();
 
@@ -39,6 +30,15 @@ function updateSingleValue(options, newValue) {
   }
 }
 
+// 更新 <option>
+function updateValue(options, newValues: any, isMultiple: boolean) {
+  if (isMultiple) {
+    updateMultipleValue(options, newValues);
+  } else {
+    updateSingleValue(options, newValues);
+  }
+}
+
 export function getSelectPropsWithoutValue(dom: HorizonSelect, properties: Object) {
   return {
     ...properties,
diff --git a/libs/horizon/src/renderer/Types.ts b/libs/horizon/src/renderer/Types.ts
index 6765fe10..9acbc42c 100644
--- a/libs/horizon/src/renderer/Types.ts
+++ b/libs/horizon/src/renderer/Types.ts
@@ -21,7 +21,6 @@ export type JSXElement = {
   key: any;
   ref: any;
   props: any;
-  
   belongClassVNode: any;
 };
 
diff --git a/libs/horizon/src/renderer/taskExecutor/BrowserAsync.ts b/libs/horizon/src/renderer/taskExecutor/BrowserAsync.ts
index 4633625f..46bc1fde 100644
--- a/libs/horizon/src/renderer/taskExecutor/BrowserAsync.ts
+++ b/libs/horizon/src/renderer/taskExecutor/BrowserAsync.ts
@@ -4,6 +4,7 @@
 
 let isMessageLoopRunning = false;
 let browserCallback = null;
+const { port1, port2 } = new MessageChannel();
 
 
 export function isOverTime() {
@@ -33,7 +34,7 @@ const callRenderTasks = () => {
   }
 };
 
-const { port1, port2 } = new MessageChannel();
+
 port1.onmessage = callRenderTasks;
 
 export function requestBrowserCallback(callback) {
diff --git a/libs/horizon/src/renderer/taskExecutor/RenderQueue.ts b/libs/horizon/src/renderer/taskExecutor/RenderQueue.ts
index 0db72fcb..48b3fc72 100644
--- a/libs/horizon/src/renderer/taskExecutor/RenderQueue.ts
+++ b/libs/horizon/src/renderer/taskExecutor/RenderQueue.ts
@@ -12,30 +12,6 @@ let callingQueueTask: any | null = null;
 // 防止重入
 let isCallingRenderQueue = false;
 
-export function pushRenderCallback(callback: RenderCallback) {
-  if (renderQueue === null) {
-    renderQueue = [callback];
-    // 高优先级的异步调度
-    callingQueueTask = runAsync(callRenderQueue, ImmediatePriority);
-  } else {
-    // 不需要调度，在syncQueue创建的时候已经调度了
-    renderQueue.push(callback);
-  }
-
-  // 返回一个空对象，用于区别null
-  return {};
-}
-
-export function callRenderQueueImmediate() {
-  if (callingQueueTask !== null) {
-    // 取消异步调度
-    cancelTask(callingQueueTask);
-    callingQueueTask = null;
-  }
-
-  callRenderQueue();
-}
-
 // 执行render回调
 function callRenderQueue() {
   if (!isCallingRenderQueue && renderQueue !== null) {
@@ -64,3 +40,27 @@ function callRenderQueue() {
     }
   }
 }
+
+export function pushRenderCallback(callback: RenderCallback) {
+  if (renderQueue === null) {
+    renderQueue = [callback];
+    // 高优先级的异步调度
+    callingQueueTask = runAsync(callRenderQueue, ImmediatePriority);
+  } else {
+    // 不需要调度，在syncQueue创建的时候已经调度了
+    renderQueue.push(callback);
+  }
+
+  // 返回一个空对象，用于区别null
+  return {};
+}
+
+export function callRenderQueueImmediate() {
+  if (callingQueueTask !== null) {
+    // 取消异步调度
+    cancelTask(callingQueueTask);
+    callingQueueTask = null;
+  }
+
+  callRenderQueue();
+}
diff --git a/libs/horizon/src/renderer/taskExecutor/TaskExecutor.ts b/libs/horizon/src/renderer/taskExecutor/TaskExecutor.ts
index fa0a3294..6f8e98e8 100644
--- a/libs/horizon/src/renderer/taskExecutor/TaskExecutor.ts
+++ b/libs/horizon/src/renderer/taskExecutor/TaskExecutor.ts
@@ -2,6 +2,7 @@
  * 调度器的核心实现
  */
 
+import { Node } from '../taskExecutor/TaskQueue';
 import {
   requestBrowserCallback,
   isOverTime,
@@ -21,39 +22,11 @@ let isProcessing = false;
 // 调度中，等待浏览器回调
 let isWaiting = false;
 
-function runAsync(callback, priorityLevel= NormalPriority ) {
-  let increment;
-  switch (priorityLevel) {
-    case ImmediatePriority:
-      increment = -1;
-      break;
-    case NormalPriority:
-    default:
-      increment = 10000;
-      break;
-  }
-
-  const task = {
-    id: idCounter++,
-    callback,
-    order: idCounter + increment,
-  };
-
-  add(task);
-
-  if (!isWaiting && !isProcessing) {
-    isWaiting = true;
-    requestBrowserCallback(callTasks);
-  }
-
-  return task;
-}
-
 function callTasks() {
   isWaiting = false;
   isProcessing = true;
 
-  let task = null;
+  let task: Node | null= null;
   try {
     task = first();
 
@@ -89,6 +62,34 @@ function callTasks() {
   }
 }
 
+function runAsync(callback, priorityLevel= NormalPriority ) {
+  let increment;
+  switch (priorityLevel) {
+    case ImmediatePriority:
+      increment = -1;
+      break;
+    case NormalPriority:
+    default:
+      increment = 10000;
+      break;
+  }
+
+  const task = {
+    id: idCounter++,
+    callback,
+    order: idCounter + increment,
+  };
+
+  add(task);
+
+  if (!isWaiting && !isProcessing) {
+    isWaiting = true;
+    requestBrowserCallback(callTasks);
+  }
+
+  return task;
+}
+
 function cancelTask(task) {
   task.callback = null;
 }
diff --git a/libs/horizon/src/renderer/taskExecutor/TaskQueue.ts b/libs/horizon/src/renderer/taskExecutor/TaskQueue.ts
index bfb98f79..66478039 100644
--- a/libs/horizon/src/renderer/taskExecutor/TaskQueue.ts
+++ b/libs/horizon/src/renderer/taskExecutor/TaskQueue.ts
@@ -3,7 +3,7 @@
  */
 
 type Queue = Array<Node>;
-type Node = {
+export type Node = {
   id: number;
   order: number;
 };
@@ -11,15 +11,10 @@ type Node = {
 // 任务队列
 const taskQueue: Queue = [];
 
-export function add(node: Node): void {
-  // 查找第一个大于等于 value 的下标，都比 value 小则返回 -1
-  const idx = getBiggerIdx(node);
-
-  if (idx === -1) {
-    taskQueue.push(node);
-  } else {
-    taskQueue.splice(idx, 0, node);
-  }
+function compare(a: Node, b: Node) {
+  // 优先先用index排序，其次用id
+  const diff = a.order - b.order;
+  return diff !== 0 ? diff : a.id - b.id;
 }
 
 // 二分法查找第一个大于等于 value 的下标，都比 value 小则返回 -1，时间复杂度O(logn)
@@ -37,11 +32,22 @@ function getBiggerIdx(node: Node) {
     }
   }
 
-  return (left < taskQueue.length) ? left : -1;
+  return left < taskQueue.length ? left : -1;
+}
+
+export function add(node: Node): void {
+  // 查找第一个大于等于 value 的下标，都比 value 小则返回 -1
+  const idx = getBiggerIdx(node);
+
+  if (idx === -1) {
+    taskQueue.push(node);
+  } else {
+    taskQueue.splice(idx, 0, node);
+  }
 }
 
 export function first(): Node | null {
-  const val = taskQueue[0];
+  const val: Node | null | undefined = taskQueue[0];
   return val !== undefined ? val : null;
 }
 
@@ -53,9 +59,3 @@ export function shift(): Node | null {
 export function remove(node: Node) {
   taskQueue.splice(taskQueue.indexOf(node), 1);
 }
-
-function compare(a: Node, b: Node) {
-  // 优先先用index排序，其次用id
-  const diff = a.order - b.order;
-  return diff !== 0 ? diff : a.id - b.id;
-}
diff --git a/libs/horizon/src/renderer/vnode/VNodeCreator.ts b/libs/horizon/src/renderer/vnode/VNodeCreator.ts
index 45648678..5feb31f4 100644
--- a/libs/horizon/src/renderer/vnode/VNodeCreator.ts
+++ b/libs/horizon/src/renderer/vnode/VNodeCreator.ts
@@ -175,7 +175,7 @@ export function onlyUpdateChildVNodes(processing: VNode): VNode | null {
     // 此vNode无需更新，但是子树需要
     if (!processing.isCreated && processing.child !== null) {
       // 更新子节点
-      let child = processing.child;
+      let child: VNode | null = processing.child;
       while (child !== null) {
         updateVNode(child, child.props);
         updateVNodePath(child);
diff --git a/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts b/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts
index d0f27198..8dfe8c7e 100644
--- a/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts
+++ b/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts
@@ -37,6 +37,19 @@ export function updateChildShouldUpdate(vNode: VNode) {
   vNode.childShouldUpdate = false;
 }
 
+// 更新从当前节点到根节点的childShouldUpdate为true
+export function setParentsChildShouldUpdate(parent: VNode | null) {
+  let node = parent;
+  while (node !== null) {
+    if (node.childShouldUpdate) {
+      break;
+    }
+    node.childShouldUpdate = true;
+
+    node = node.parent;
+  }
+}
+
 // 设置节点的所有父节点的childShouldUpdate
 export function updateParentsChildShouldUpdate(vNode: VNode) {
   let node = vNode.parent;
@@ -51,16 +64,3 @@ export function updateParentsChildShouldUpdate(vNode: VNode) {
     }
   }
 }
-
-// 更新从当前节点到根节点的childShouldUpdate为true
-export function setParentsChildShouldUpdate(parent: VNode | null) {
-  let node = parent;
-  while (node !== null) {
-    if (node.childShouldUpdate) {
-      break;
-    }
-    node.childShouldUpdate = true;
-
-    node = node.parent;
-  }
-}

From 18ab628b5b95d0bc72d1075f6826a100850645f9 Mon Sep 17 00:00:00 2001
From: * <8>
Date: Wed, 26 Jan 2022 10:01:52 +0800
Subject: [PATCH 2/2] Match-id-e9b03e4853962a0a72ef084c175004435c98aec5

---
 libs/horizon/src/dom/DOMOperator.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/horizon/src/dom/DOMOperator.ts b/libs/horizon/src/dom/DOMOperator.ts
index 71204206..cc023da9 100644
--- a/libs/horizon/src/dom/DOMOperator.ts
+++ b/libs/horizon/src/dom/DOMOperator.ts
@@ -54,7 +54,7 @@ function getChildNS(parentNS: string | null, tagName: string): string {
 }
 
 // 获取容器
-export function getNSCtx(parentNS: string, type: string, dom: Container | undefined): string {
+export function getNSCtx(parentNS: string, type: string, dom?: Container): string {
   return dom ? getChildNS(dom.namespaceURI ?? null, dom.nodeName) : getChildNS(parentNS, type);
 }