vuejs
diff --git a/‎packages/create-instance/create-instance.js
Copy file name to clipboardExpand all lines: packages/create-instance/create-instance.js
+7-1Lines changed: 7 additions & 1 deletion b/‎packages/create-instance/create-instance.js
Copy file name to clipboardExpand all lines: packages/create-instance/create-instance.js
+7-1Lines changed: 7 additions & 1 deletion
diff --git a/‎test/specs/mount.spec.js
Copy file name to clipboardExpand all lines: test/specs/mount.spec.js
+18Lines changed: 18 additions & 0 deletions b/‎test/specs/mount.spec.js
Copy file name to clipboardExpand all lines: test/specs/mount.spec.js
+18Lines changed: 18 additions & 0 deletions
@@ -123,7 +123,13 @@ export default function createInstance(
       createChildren(this, h, options)
     )
   }
-  const Parent = _Vue.extend(parentComponentOptions)
+
+  // options  "propsData" can only be used during instance creation with the `new` keyword
+  const { propsData, ...rest } = options // eslint-disable-line
+  const Parent = _Vue.extend({
+    ...rest,
+    ...parentComponentOptions
+  })
 
   return new Parent()
 }
@@ -419,6 +419,24 @@ describeRunIf(process.env.TEST_ENV !== 'node', 'mount', () => {
     expect(wrapper.html()).toEqual('<div>composition api</div>')
   })
 
+  it('allows accessing $root with composition api plugin', () => {
+    const localVue = createLocalVue()
+    localVue.use(Vuex)
+    localVue.use(CompositionAPI)
+    const store = new Vuex.Store({
+      state: {
+        msg: 'msg'
+      }
+    })
+    const Comp = {
+      setup(props, ctx) {
+        return () => createElement('div', ctx.root.$store.state.msg)
+      }
+    }
+    const wrapper = mount(Comp, { localVue, store })
+    expect(wrapper.html()).toEqual('<div>msg</div>')
+  })
+
   itDoNotRunIf.skip(
     vueVersion >= 2.5,
     'throws if component throws during update',
Original file line number	Diff line number	Diff line change
`@@ -123,7 +123,13 @@ export default function createInstance(`
`123`	`123`	`createChildren(this, h, options)`
`124`	`124`	`)`
`125`	`125`	`}`
`126`		`- const Parent = _Vue.extend(parentComponentOptions)`
	`126`	`+`
	`127`	+ // options "propsData" can only be used during instance creation with the `new` keyword
	`128`	`+ const { propsData, ...rest } = options // eslint-disable-line`
	`129`	`+ const Parent = _Vue.extend({`
	`130`	`+ ...rest,`
	`131`	`+ ...parentComponentOptions`
	`132`	`+ })`
`127`	`133`
`128`	`134`	`return new Parent()`
`129`	`135`	`}`