浅读vuex源码

class KVuex {
    constructor (options) {
        this.state = options.state
        this.mutations = options.mutations
        this.actions = options.actions
        // 借用vue本身的响应式的通知机制
        // state 会将需要的依赖收集在 Dep 中
        this._vm = new KVue({
            data: {
                $state: this.state
            }
        })
    }

    commit (type, payload, _options) {
        const entry = this.mutations[type]
        entry.forEach(handler=>handler(payload))
    }

    dispatch (type, payload) {
        const entry = this.actions[type]

        return entry(payload)
    }
}