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55 lines
1.4 KiB
55 lines
1.4 KiB
3 years ago
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const {
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hasOwn
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} = require('./util')
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const onRE = /^@|^v-on:/
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function removeAttr (el, name) {
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if (hasOwn(el.attrsMap, name)) {
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delete el.attrsMap[name]
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el.attrsList.splice(el.attrsList.findIndex(attr => attr.name === name), 1)
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return true
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}
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}
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module.exports = {
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preTransformNode (el, {
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warn
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}) {
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if (process.env.UNI_PLATFORM === 'app-plus' && el.tag === 'ad') {
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warn('app-vue平台, <ad> 组件暂不支持非 V3 编译, 详见: https://ask.dcloud.net.cn/article/36599')
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}
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if (el.tag === 'slot' && !el.attrsMap.name) {
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el.attrsList.push({
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name: 'SLOT_DEFAULT',
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value: true
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})
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el.attrsMap.SLOT_DEFAULT = true
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}
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// 处理 attr
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el.attrsList.forEach(attr => {
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if (
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attr.name.indexOf('v-model') === 0 &&
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attr.name.indexOf('.lazy') !== -1
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) {
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const origName = attr.name
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const newName = origName.replace('.lazy', '')
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attr.name = newName
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el.attrsMap[newName] = attr.value
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delete el.attrsMap[origName]
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} else if (onRE.test(attr.name) && !attr.value.trim()) { // 事件为空
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attr.value = '__HOLDER__'
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el.attrsMap[attr.name] = attr.value
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}
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})
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// 暂不支持的指令
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const dirs = ['v-once', 'v-pre', 'v-cloak']
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dirs.forEach(dir => {
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if (removeAttr(el, dir)) {
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warn(`unsupported directive ${dir}`, false, true)
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}
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})
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//
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}
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}
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