优化模板解析;修复属性代理逻辑;优化事件销毁机制

package.json

@@ -1,6 +1,6 @@
 {
   "name": "wkit",
-  "version": "1.11.1",
+  "version": "1.11.2",
   "type": "module",
   "description": "A library for building fast, lightweight web components.",
   "main": "dist/index.js",

src/html.js

@@ -143,16 +143,20 @@ function getTemplateHtml(strings, type) {
 }
 
 class Template {
+  parts = []
+
   constructor({ strings, ['__dom_type__']: type }, options) {
-    this.parts = []
     let node
     let nodeIndex = 0
     let attrNameIndex = 0
     let partCount = strings.length - 1
     let parts = this.parts
     let [html2, attrNames] = getTemplateHtml(strings, type)
+
     this.el = Template.createElement(html2)
+
     walker.currentNode = this.el.content
+
     if (type === SVG_RESULT) {
       let content = this.el.content
       let svgElement = content.firstChild
@@ -327,6 +331,7 @@ class TemplateInstance {
 
     return fragment
   }
+
   update(values) {
     let i = 0
     for (let part of this.$parts) {
@@ -344,10 +349,10 @@ class TemplateInstance {
 }
 
 class ChildPart {
+  type = CHILD_PART
   #value = NOTHING
 
   constructor(startNode, endNode, parent, options) {
-    this.type = CHILD_PART
     this.startNode = startNode
     this.endNode = endNode
     this.$parent = parent
@@ -363,7 +368,7 @@ class ChildPart {
     return parentNode
   }
 
-  $setValue(value) {
+  $setValue(value, clear) {
     if (isPrimitive(value)) {
       if (value === NOTHING || value == null || value === '') {
         if (this.#value !== NOTHING) {
@@ -382,16 +387,22 @@ class ChildPart {
     } else {
       this.#commitText(value)
     }
+    if (clear) {
+      nextTick(_ => this.#clearBindings())
+    }
   }
+
   #insert(node, target = this.endNode) {
     return this.startNode.parentNode.insertBefore(node, target)
   }
+
   #commitNode(value) {
     if (this.#value !== value) {
       this.#clear()
       this.#value = this.#insert(value)
     }
   }
+
   #commitText(value) {
     if (this.#value !== NOTHING && isPrimitive(this.#value)) {
       let node = this.startNode.nextSibling
@@ -402,6 +413,7 @@ class ChildPart {
     }
     this.#value = value
   }
+
   #commitTemplateResult(result) {
     let { values, ['__dom_type__']: type } = result
     let template =
@@ -422,12 +434,14 @@ class ChildPart {
       this.#value = instance
     }
   }
+
   #getTemplate(result) {
-    let template = TEMPLATE_CACHE.get(result.strings.join())
+    let key = result.strings.join()
+    let template = TEMPLATE_CACHE.get(key)
 
     if (template === void 0) {
       template = new Template(result, this.options)
-      TEMPLATE_CACHE.set(result.strings.join(), template)
+      TEMPLATE_CACHE.set(key, template)
     }
     return template
   }
@@ -469,14 +483,32 @@ class ChildPart {
       start = node
     }
   }
+
+  /**
+   * 清除已被移除的节点事件
+   */
+  #clearBindings() {
+    let host = this.options.host
+    let events = host.$events
+
+    for (let ev in events) {
+      for (let i = -1, it; (it = events[ev][++i]); ) {
+        if (!host.root.contains(it.el)) {
+          it.el.removeEventListener(this.name, it.listener, it.options)
+          events[ev][i] = null
+        }
+      }
+      events[ev] = events[ev].filter(e => e !== null)
+    }
+  }
 }
 // 常规属性
 class AttributePart {
+  type = ATTRIBUTE_PART
+
   #value = NOTHING
 
   constructor(element, name, strings, decorates, parent, options = {}) {
-    this.type = ATTRIBUTE_PART
-
     this.element = element
     this.name = name
     this.decorates = decorates
@@ -494,6 +526,7 @@ class AttributePart {
   $setValue(value, valueIndex) {
     let strings = this.strings
     let changed = false
+
     if (strings === void 0) {
       changed = !isPrimitive(value) || value !== this.#value
       if (changed) {
@@ -521,26 +554,28 @@ class AttributePart {
   }
 
   commitValue(value) {
-    let isBoolAttr = boolMap[this.name]
+    let elem = this.element
+    let attr = this.name
+    let isBoolAttr = boolMap[attr]
     // ref属性不渲染到节点上
-    if (this.name === 'ref') {
+    if (attr === 'ref') {
-      this.options.host.$refs[value] = this.element
+      this.options.host.$refs[value] = elem
       return
     }
 
     if (isBoolAttr) {
-      this.element[isBoolAttr] = !(value === false || value === null)
+      elem[isBoolAttr] = !(value === false || value === null)
 
-      if (this.element[isBoolAttr]) {
+      if (elem[isBoolAttr]) {
-        this.element.setAttribute(this.name, '')
+        elem.setAttribute(attr, '')
       } else {
-        this.element.removeAttribute(this.name)
+        elem.removeAttribute(attr)
       }
     } else {
       if (value === null || value === void 0) {
-        this.element.removeAttribute(this.name)
+        elem.removeAttribute(attr)
       } else {
-        this.element.setAttribute(this.name, value)
+        elem.setAttribute(attr, value)
       }
     }
   }
@@ -562,20 +597,23 @@ class AnimPart extends AttributePart {
   }
 
   commitValue({ type = 'fade', duration, custom, immediate = false } = {}) {
+    let elem = this.element
     let fromto = MODES[type] || MODES.fade
 
     if (custom) {
       fromto = custom
     }
-    this.element.$animate = function (out = false) {
+    elem.$animate = function (out = false) {
       return animate.call(this, duration, fromto, out)
     }
-    this.element.$animate.immediate = immediate
+    elem.$animate.immediate = immediate
   }
 }
 
 // 事件属性
 class EventPart extends AttributePart {
+  type = EVENT_PART
+
   #listener = null
 
   #prevent = noop
@@ -584,30 +622,14 @@ class EventPart extends AttributePart {
 
   constructor(...args) {
     super(...args)
-    this.type = EVENT_PART
-  }
-
-  #clearBindings() {
-    let host = this.options.host
-    let events = host.$events[this.name]
-
-    for (let i = -1, it; (it = events[++i]); ) {
-      if (!host.root.contains(it.el)) {
-        this.element.removeEventListener(this.name, it.listener, it.options)
-        events[i] = null
-      }
-    }
-    host.$events[this.name] = events.filter(it => it !== null)
   }
 
   $setValue(listener) {
     let host = this.options.host
+    let elem = this.element
+    let name = this.name
     let options = {}
-    let events = host.$events[this.name]
+    let events = host.$events[name] || []
-
-    if (!events) {
-      events = host.$events[this.name] = []
-    }
 
     if (this.decorates.length) {
       for (let it of this.decorates) {
@@ -619,7 +641,7 @@ class EventPart extends AttributePart {
             this.#prevent = ev => ev.preventDefault()
             break
           case 'self':
-            this.#checkSelf = ev => ev.target === this.element
+            this.#checkSelf = ev => ev.target === elem
             break
           case 'capture':
           case 'once':
@@ -634,14 +656,14 @@ class EventPart extends AttributePart {
 
     if (this.#listener) {
       for (let i = -1, it; (it = events[++i]); ) {
-        if (it.el === this.element) {
+        if (it.el === elem) {
           shouldRemove =
             shouldRemove ||
             options.capture !== it.capture ||
             options.once !== it.once ||
             options.passive !== it.passive
           if (shouldRemove) {
-            this.element.removeEventListener(this.name, it.listener, it.options)
+            it.el.removeEventListener(name, it.listener, it.options)
             events[i] = null
           }
           break
@@ -650,20 +672,14 @@ class EventPart extends AttributePart {
     }
 
     events = events.filter(it => it !== null)
-    host.$events[this.name] = events
+    host.$events[name] = events
 
     if (listener && shouldRemove) {
-      this.element.addEventListener(this.name, this, options)
+      elem.addEventListener(name, this, options)
       this.#listener = listener
 
-      events.push({
+      events.push({ el: elem, listener: this, options })
-        el: this.element,
-        listener: this,
-        options
-      })
     }
-
-    nextTick(_ => this.#clearBindings())
   }
 
   handleEvent(ev) {
@@ -677,14 +693,14 @@ class EventPart extends AttributePart {
 }
 
 class ElementPart {
+  type = ELEMENT_PART
   constructor(element, parent, options) {
     this.element = element
-    this.type = ELEMENT_PART
     this.$parent = parent
     this.options = options
   }
 
-  $setValue(value) {}
+  $setValue() {}
 }
 
 export function render(value, container, options = {}) {
@@ -699,7 +715,7 @@ export function render(value, container, options = {}) {
     )
     container[WC_PART] = part
   }
-  part.$setValue(value)
+  part.$setValue(value, true)
 
   return part
 }

src/index.js

@@ -223,9 +223,6 @@ export class Component extends HTMLElement {
         return value
       },
       set: (target, prop, value, receiver) => {
-        if (prop === 'length' && options.type === Array) {
-          return true
-        }
         let oldValue = target[prop]
         Reflect.set(target, prop, value, receiver)