fix(mp): dynamic scoped slot with v-for

packages/uni-mp-compiler/__tests__/slot.spec.ts

@@ -30,6 +30,13 @@ describe('compiler: transform slot', () => {
       `<button><slot name="{{a}}"></slot></button>`,
       `(_ctx, _cache) => {
   return { a: _d('title' + _ctx.index), b: _r(_d('title' + _ctx.index), { content: { name: 'name1' } }) }
+}`
+    )
+    assert(
+      `<view v-for="(item,index) in 3" :key="index"><slot :name="'title'+index" :content="{name:'name'+index}"></slot></view>`,
+      `<view wx:for="{{a}}" wx:for-item="item" wx:key="c"><slot name="{{item.a}}"></slot></view>`,
+      `(_ctx, _cache) => {
+  return { a: _f(3, (item, index, i0) => { return { a: _d('title' + index + '-' + i0), b: _r(_d('title' + index), { content: { name: 'name' + index } }, i0), c: index }; }) }
 }`
     )
   })

packages/uni-mp-compiler/src/transforms/transformSlot.ts

@@ -53,12 +53,22 @@ export function rewriteSlot(node: SlotOutletNode, context: TransformContext) {
       }
       if (p.name === 'bind' && isStaticArgOf(p.arg, 'name')) {
         if (p.exp) {
+          const slotKey = parseScopedSlotKey(context)
+          // renderSlot 第三个参数已经传了 slotKey
           slotName = createCompoundExpression([
             context.helperString(DYNAMIC_SLOT) + '(',
             p.exp,
             ')',
           ])
-          p.exp = rewriteExpression(slotName, context)
+          p.exp = rewriteExpression(
+            createCompoundExpression([
+              context.helperString(DYNAMIC_SLOT) + '(',
+              p.exp,
+              slotKey ? `+'-'+` + slotKey : '',
+              ')',
+            ]),
+            context
+          )
         }
       } else {
         if (p.name === 'bind' && p.arg && isStaticExp(p.arg)) {
@@ -166,16 +176,16 @@ function createScopedSlotDirectiveNode(
 
 function parseScopedSlotKey(context: TransformContext) {
   let { currentScope } = context
-  const indexs: string[] = []
+  const indexes: string[] = []
   while (currentScope) {
     if (isVForScope(currentScope)) {
-      indexs.push(currentScope.indexAlias)
+      indexes.push(currentScope.indexAlias)
     }
     currentScope = currentScope.parent!
   }
-  const inFor = !!indexs.length
+  const inFor = !!indexes.length
   if (inFor) {
-    return indexs.reverse().join(`+'-'+`)
+    return indexes.reverse().join(`+'-'+`)
   }
 }