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Implementing a cache for the gettersProxy object creation #1546

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merged 4 commits into from
Nov 9, 2019
Merged

Implementing a cache for the gettersProxy object creation #1546

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2df536b
Implementing a cache for the gettersProxy object creation. Kill ssr p…
frankcs May 3, 2019
724828e
Revert "Implementing a cache for the gettersProxy object creation. Ki…
frankcs Nov 9, 2019
67c7b4e
Resetting the make local getters cache when the store gets updated
frankcs Nov 9, 2019
b1f5bb2
Changing cache to makeLocalGetters to instance internal state
frankcs Nov 9, 2019
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41 changes: 23 additions & 18 deletions src/store.js
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@ export class Store {
this._modulesNamespaceMap = Object.create(null)
this._subscribers = []
this._watcherVM = new Vue()
this._makeLocalGettersCache = Object.create(null)

// bind commit and dispatch to self
const store = this
Expand Down Expand Up @@ -252,6 +253,8 @@ function resetStoreVM (store, state, hot) {

// bind store public getters
store.getters = {}
// reset local getters cache
store._makeLocalGettersCache = Object.create(null)
const wrappedGetters = store._wrappedGetters
const computed = {}
forEachValue(wrappedGetters, (fn, key) => {
Expand Down Expand Up @@ -394,26 +397,28 @@ function makeLocalContext (store, namespace, path) {
}

function makeLocalGetters (store, namespace) {
const gettersProxy = {}

const splitPos = namespace.length
Object.keys(store.getters).forEach(type => {
// skip if the target getter is not match this namespace
if (type.slice(0, splitPos) !== namespace) return

// extract local getter type
const localType = type.slice(splitPos)

// Add a port to the getters proxy.
// Define as getter property because
// we do not want to evaluate the getters in this time.
Object.defineProperty(gettersProxy, localType, {
get: () => store.getters[type],
enumerable: true
if (!store._makeLocalGettersCache[namespace]) {
const gettersProxy = {}
const splitPos = namespace.length
Object.keys(store.getters).forEach(type => {
// skip if the target getter is not match this namespace
if (type.slice(0, splitPos) !== namespace) return

// extract local getter type
const localType = type.slice(splitPos)

// Add a port to the getters proxy.
// Define as getter property because
// we do not want to evaluate the getters in this time.
Object.defineProperty(gettersProxy, localType, {
get: () => store.getters[type],
enumerable: true
})
})
})
store._makeLocalGettersCache[namespace] = gettersProxy
}

return gettersProxy
return store._makeLocalGettersCache[namespace]
}

function registerMutation (store, type, handler, local) {
Expand Down