const {
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tags
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} = require('@dcloudio/uni-cli-shared')
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const parser = require('@babel/parser')
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const t = require('@babel/types')
|
|
const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/
|
|
function isFunction (expr) {
|
try {
|
const body = parser.parse(`(${expr})`).program.body[0]
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const expression = body.expression
|
return t.isFunctionDeclaration(body) || t.isArrowFunctionExpression(expression) || t.isFunctionExpression(
|
expression)
|
} catch (error) {}
|
}
|
|
function processEvent (expr, filterModules) {
|
const isMethodPath = simplePathRE.test(expr)
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if (isMethodPath || isFunction(expr)) {
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if (filterModules.find(name => expr.indexOf(name + '.') === 0)) {
|
return `
|
$event = $handleWxsEvent($event);
|
(${expr})($event, $getComponentDescriptor())
|
`
|
} else {
|
expr = `(${expr})(...arguments)`
|
}
|
}
|
return `
|
arguments[0] = $event = $handleEvent($event);
|
${expr}
|
`
|
}
|
|
function hasOwn (obj, key) {
|
return hasOwnProperty.call(obj, key)
|
}
|
|
const deprecated = {
|
events: {
|
tap: 'click',
|
longtap: 'longpress'
|
}
|
}
|
|
function addTag (tag) {
|
if (!process.UNI_TAGS) {
|
process.UNI_TAGS = new Set()
|
}
|
process.UNI_TAGS.add(tag)
|
}
|
|
module.exports = {
|
h5: true,
|
modules: [require('../format-text'), {
|
preTransformNode (el, options) {
|
if (el.tag.indexOf('v-uni-') === 0) {
|
addTag(el.tag.replace('v-uni-', ''))
|
} else if (hasOwn(tags, el.tag)) {
|
addTag(el.tag)
|
el.tag = 'v-uni-' + el.tag
|
}
|
},
|
postTransformNode (el, {
|
warn,
|
filterModules
|
}) {
|
if (el.tag === 'block') {
|
el.tag = 'template'
|
const vForKey = el.key
|
if (vForKey) {
|
delete el.key
|
el.children.forEach((childEl, index) => {
|
const childVForKey = childEl.key
|
if (childVForKey) {
|
childEl.key = `${childVForKey}+'_'+${vForKey}+'_${index}'`
|
} else {
|
childEl.key = `${vForKey}+'_${index}'`
|
}
|
})
|
}
|
}
|
if (el.events || el.nativeEvents) {
|
filterModules = filterModules || []
|
const {
|
events: eventsMap
|
} = deprecated
|
// const warnLogs = new Set()
|
normalizeEvent(el.events, eventsMap, filterModules)
|
normalizeEvent(el.nativeEvents, eventsMap, filterModules)
|
}
|
}
|
}]
|
}
|
|
function normalizeEvent (events, eventsMap, filterModules) {
|
if (!events) {
|
return
|
}
|
Object.keys(events).forEach(name => {
|
// 过时事件类型转换
|
if (eventsMap[name]) {
|
events[eventsMap[name]] = events[name]
|
delete events[name]
|
// warnLogs.add(`警告：事件${name}已过时，推荐使用${eventsMap[name]}代替`)
|
name = eventsMap[name]
|
}
|
|
const handlers = events[name]
|
if (Array.isArray(handlers)) {
|
handlers.forEach(handler => {
|
handler.value = processEvent(handler.value, filterModules)
|
})
|
} else {
|
handlers.value = processEvent(handlers.value, filterModules)
|
}
|
})
|
}
|
