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improve updateDirectives performance

This commit is contained in:
Evan You 2016-12-02 22:02:20 -05:00
parent 25f8c50d95
commit 4f82c6abde
1 changed files with 12 additions and 12 deletions
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24
src/core/vdom/modules/directives.js
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@ -12,13 +12,13 @@ export default {
}
}
function updateDirectives (
oldVnode: VNodeWithData,
vnode: VNodeWithData
) {
if (!oldVnode.data.directives && !vnode.data.directives) {
return
function updateDirectives (oldVnode: VNodeWithData, vnode: VNodeWithData) {
if (oldVnode.data.directives || vnode.data.directives) {
_update(oldVnode, vnode)
}
}
function _update (oldVnode, vnode) {
const isCreate = oldVnode === emptyNode
const oldDirs = normalizeDirectives(oldVnode.data.directives, oldVnode.context)
const newDirs = normalizeDirectives(vnode.data.directives, vnode.context)
@ -48,9 +48,9 @@ function updateDirectives (
if (dirsWithInsert.length) {
const callInsert = () => {
dirsWithInsert.forEach(dir => {
callHook(dir, 'inserted', vnode, oldVnode)
})
for (let i = 0; i < dirsWithInsert.length; i++) {
callHook(dirsWithInsert[i], 'inserted', vnode, oldVnode)
}
}
if (isCreate) {
mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert, 'dir-insert')
@ -61,9 +61,9 @@ function updateDirectives (
if (dirsWithPostpatch.length) {
mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', () => {
dirsWithPostpatch.forEach(dir => {
callHook(dir, 'componentUpdated', vnode, oldVnode)
})
for (let i = 0; i < dirsWithPostpatch.length; i++) {
callHook(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode)
}
}, 'dir-postpatch')
}