feat(weex): WIP invoke recycle-list child component with backing instance

Author: yyx990803

flow/compiler.js

@@ -19,6 +19,7 @@ declare type CompilerOptions = {
   shouldDecodeTags?: boolean;
   shouldDecodeNewlines?:  boolean;
   shouldDecodeNewlinesForHref?: boolean;
+  optimize?: boolean;
 
   // support <recycle-list> in weex
   recyclable?: boolean;

src/compiler/helpers.js

@@ -18,10 +18,12 @@ export function pluckModuleFunction<F: Function> (
 
 export function addProp (el: ASTElement, name: string, value: string) {
   (el.props || (el.props = [])).push({ name, value })
+  el.plain = false
 }
 
 export function addAttr (el: ASTElement, name: string, value: any) {
   (el.attrs || (el.attrs = [])).push({ name, value })
+  el.plain = false
 }
 
 export function addDirective (
@@ -33,6 +35,7 @@ export function addDirective (
   modifiers: ?ASTModifiers
 ) {
   (el.directives || (el.directives = [])).push({ name, rawName, value, arg, modifiers })
+  el.plain = false
 }
 
 export function addHandler (
@@ -105,6 +108,8 @@ export function addHandler (
   } else {
     events[name] = newHandler
   }
+
+  el.plain = false
 }
 
 export function getBindingAttr (

src/compiler/index.js

@@ -13,7 +13,9 @@ export const createCompiler = createCompilerCreator(function baseCompile (
   options: CompilerOptions
 ): CompiledResult {
   const ast = parse(template.trim(), options)
-  optimize(ast, options)
+  if (options.optimize !== false) {
+    optimize(ast, options)
+  }
   const code = generate(ast, options)
   return {
     ast,

src/core/vdom/create-component.js

@@ -4,6 +4,7 @@ import VNode from './vnode'
 import { resolveConstructorOptions } from 'core/instance/init'
 import { queueActivatedComponent } from 'core/observer/scheduler'
 import { createFunctionalComponent } from './create-functional-component'
+import { renderRecyclableComponentTemplate } from 'weex/runtime/recycle-list/render-component-template'
 
 import {
   warn,
@@ -144,21 +145,6 @@ export function createComponent (
 
   data = data || {}
 
-  // recycle-list optimized render function for extracting cell-slot
-  // template. This is essentially inline expanding instead of creating
-  // an actual instance.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  if (__WEEX__ && data.attrs && data.attrs['@isInRecycleList']) {
-    const altRender = Ctor.options['@render']
-    if (altRender) {
-      return altRender.call(
-        context,
-        context.$createElement,
-        data.attrs
-      )
-    }
-  }
-
   // resolve constructor options in case global mixins are applied after
   // component constructor creation
   resolveConstructorOptions(Ctor)
@@ -206,6 +192,14 @@ export function createComponent (
     { Ctor, propsData, listeners, tag, children },
     asyncFactory
   )
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  if (__WEEX__ && data.attrs && ('@inRecycleList' in data.attrs)) {
+    return renderRecyclableComponentTemplate(vnode)
+  }
+
   return vnode
 }
 

src/platforms/weex/compiler/index.js

@@ -43,6 +43,8 @@ export function compile (
   // generate @render function for <recycle-list>
   if (options && generateAltRender) {
     options.recyclable = true
+    // disable static optimizations
+    options.optimize = false
     const { render } = compiler.compile(template, options)
     result['@render'] = render
   }

src/platforms/weex/compiler/modules/recycle-list/component.js

@@ -0,0 +1,12 @@
+/* @flow */
+
+import { addAttr } from 'compiler/helpers'
+import { RECYCLE_LIST_MARKER } from 'weex/util/index'
+
+// mark components as inside recycle-list so that we know we need to invoke
+// their special @render function instead of render in create-component.js
+export function postTransformComponent (el: ASTElement, options: CompilerOptions) {
+  if (!options.isReservedTag(el.tag) && el.tag !== 'cell-slot') {
+    addAttr(el, RECYCLE_LIST_MARKER, true)
+  }
+}

src/platforms/weex/compiler/modules/recycle-list/index.js

@@ -1,5 +1,6 @@
 /* @flow */
 
+import { postTransformComponent } from './component'
 import { postTransformText } from './text'
 import { preTransformVBind } from './v-bind'
 import { preTransformVIf } from './v-if'
@@ -32,6 +33,7 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
 
 function postTransformNode (el: ASTElement, options: CompilerOptions) {
   if (shouldCompile(el, options)) {
+    postTransformComponent(el, options)
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
       postTransformText(el, options)

src/platforms/weex/compiler/modules/recycle-list/text.js

@@ -19,6 +19,5 @@ export function postTransformText (el: ASTElement, options: CompilerOptions) {
   if (el.children.length) {
     addAttr(el, 'value', genText(el.children[0]))
     el.children = []
-    el.plain = false
   }
 }

src/platforms/weex/runtime/recycle-list/render-component-template.js

@@ -0,0 +1,17 @@
+/* @flow */
+
+import { RECYCLE_LIST_MARKER } from 'weex/util/index'
+import { createComponentInstanceForVnode } from 'core/vdom/create-component'
+
+export function isRecyclableComponent (vnode: VNodeWithData): boolean {
+  return vnode.data.attrs && (RECYCLE_LIST_MARKER in vnode.data.attrs)
+}
+
+export function renderRecyclableComponentTemplate (vnode: VNodeWithData): VNode {
+  // TODO:
+  // 1. adding @isComponentRoot / @componentProps to the root node
+  // 2. proper error handling
+  delete vnode.data.attrs[RECYCLE_LIST_MARKER]
+  const instance = createComponentInstanceForVnode(vnode)
+  return instance.$options['@render'].call(instance)
+}

src/platforms/weex/runtime/recycle-list/virtual-component.js

@@ -0,0 +1,6 @@
+// import {
+//   // id, 'lifecycle', hookname, fn
+//   // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+//   registerComponentHook,
+//   updateComponentData
+// } from '../util/index'