fix(v3): v-for without child element #1206

packages/uni-template-compiler/__tests__/compiler-app-plus-extra.service.spec.js

@@ -61,15 +61,19 @@ describe('codegen', () => {
     assertCodegen(
       '<div><template v-for="item in items"><span v-if="item.sub"></span></template></div>',
       `with(this){return _c('div',[_l((_$s(1,'f',{forItems:items})),function(item,$10,$20,$30){return [(_$s(("2-"+$30),'i',item.sub))?_c('span',{key:_$s(1,'f',{forIndex:$20,keyIndex:0,key:1+'-0'+$30})}):_e()]})],2)}`
-    )
-    assertCodegen(
-      '<view><template v-for="(item, index) in arr">{{item}}</template></view>',
-      `with(this){return _c('view',[_l((_$s(1,'f',{forItems:arr,fill:true})),function(item,index,$20,$30){return [_v((_$s(("1-"+$30),'t0',_s(item))))]})],2)}`
-    )
-    assertCodegen(
-      '<view><block v-for="(item, index) in arr" v-bind:key="index">{{item}}</block></view>',
-      `with(this){return _c('view',[_l((_$s(1,'f',{forItems:arr,fill:true})),function(item,index,$20,$30){return [_v((_$s(("1-"+$30),'t0',_s(item))))]})],2)}`
-    )
+    )
+    assertCodegen(
+      '<view><template v-for="(item, index) in arr">{{item}}</template></view>',
+      `with(this){return _c('view',[_l((_$s(1,'f',{forItems:arr,fill:true})),function(item,index,$20,$30){return [_v((_$s(("1-"+$30),'t0',_s(item))))]})],2)}`
+    )
+    assertCodegen(
+      '<view><block v-for="(item, index) in arr" v-bind:key="index">{{item}}</block></view>',
+      `with(this){return _c('view',[_l((_$s(1,'f',{forItems:arr,fill:true})),function(item,index,$20,$30){return [_v((_$s(("1-"+$30),'t0',_s(item))))]})],2)}`
+    )
+    assertCodegen(
+      '<view><block v-for="(item,index) in arr" v-bind:key="index"><block v-if="item==3">{{item}}</block></block></view>',
+      `with(this){return _c('view',[_l((_$s(1,'f',{forItems:arr,fill:true})),function(item,index,$20,$30){return [(_$s(("2-"+$30),'i',item==3))?[_v((_$s(("2-"+$30),'t0',_s(item))))]:_e()]})],2)}`
+    )
   })
   it('generate text with multiple statements', () => {
     assertCodegen(

packages/uni-template-compiler/lib/app/service.js

@@ -92,7 +92,11 @@ function checkAutoFill (el) {
       el.tag === 'template' ||
       el.tag === 'block'
     ) &&
-    !el.children.find(child => child.type === 1)
+    !el.children.find(child =>
+      child.type === 1 &&
+      child.tag !== 'template' &&
+      child.tag !== 'block'
+    )
   ) {
     return true
   }