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指令解析优化 #2196

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merged 1 commit into from
Jan 21, 2016
Merged

指令解析优化 #2196

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15 changes: 5 additions & 10 deletions src/compiler/compile.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ import {
// special binding prefixes
const bindRE = /^v-bind:|^:/
const onRE = /^v-on:|^@/
const argRE = /:(.*)$/
const dirAttrRE = /^v-([^:]+)(?:$|:(.*)$)/
const modifierRE = /\.[^\.]+/g
const transitionRE = /^(v-bind:|:)?transition$/

Expand Down Expand Up @@ -643,7 +643,7 @@ function makeTerminalNodeLinkFn (el, dirName, value, options, def) {
function compileDirectives (attrs, options) {
var i = attrs.length
var dirs = []
var attr, name, value, rawName, rawValue, dirName, arg, modifiers, dirDef, tokens
var attr, name, value, rawName, rawValue, dirName, arg, modifiers, dirDef, tokens, matched
while (i--) {
attr = attrs[i]
name = rawName = attr.name
Expand Down Expand Up @@ -701,14 +701,9 @@ function compileDirectives (attrs, options) {
} else

// normal directives
if (name.indexOf('v-') === 0) {
// check arg
arg = (arg = name.match(argRE)) && arg[1]
if (arg) {
name = name.replace(argRE, '')
}
// extract directive name
dirName = name.slice(2)
if ((matched = name.match(dirAttrRE))) {
dirName = matched[1]
arg = matched[2]

// skip v-else (when used with v-show)
if (dirName === 'else') {
Expand Down