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fix(lifecycle): beforeUpdated should not be called if component is de…
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…stroyed (#9171)

fix #8076
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therealpecus authored and yyx990803 committed Dec 11, 2018
1 parent d8285c5 commit 87bad80
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Showing 2 changed files with 38 additions and 1 deletion.
2 changes: 1 addition & 1 deletion src/core/instance/lifecycle.js
Original file line number Diff line number Diff line change
Expand Up @@ -196,7 +196,7 @@ export function mountComponent (
// component's mounted hook), which relies on vm._watcher being already defined
new Watcher(vm, updateComponent, noop, {
before () {
if (vm._isMounted) {
if (vm._isMounted && !vm._isDestroyed) {
callHook(vm, 'beforeUpdate')
}
}
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37 changes: 37 additions & 0 deletions test/unit/features/options/lifecycle.spec.js
Original file line number Diff line number Diff line change
Expand Up @@ -152,6 +152,43 @@ describe('Options lifecycle hooks', () => {
expect(vm.$el.textContent).toBe('bar!')
}).then(done)
})

// #8076
it('should not be called after destroy', done => {
const beforeUpdate = jasmine.createSpy('beforeUpdate')
const destroyed = jasmine.createSpy('destroyed')

Vue.component('todo', {
template: '<div>{{todo.done}}</div>',
props: ['todo'],
destroyed,
beforeUpdate
})

const vm = new Vue({
template: `
<div>
<todo v-for="t in pendingTodos" :todo="t" :key="t.id"></todo>
</div>
`,
data () {
return {
todos: [{ id: 1, done: false }]
}
},
computed: {
pendingTodos () {
return this.todos.filter(t => !t.done)
}
}
}).$mount()

vm.todos[0].done = true
waitForUpdate(() => {
expect(destroyed).toHaveBeenCalled()
expect(beforeUpdate).not.toHaveBeenCalled()
}).then(done)
})
})

describe('updated', () => {
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