ce4c83ff
 wxy
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// babel-plugin-parse-mp-info.js
const generate = require('babel-generator').default
const babelon = require('babelon')
function getImportsMap (metadata) {
let { importsMap } = metadata
const { imports } = metadata.modules
if (!importsMap) {
importsMap = {}
imports.forEach(m => {
m.specifiers.forEach(v => {
importsMap[v.local] = m.source
})
})
metadata.importsMap = importsMap
}
return metadata
}
// 解析 config
const traverseConfigVisitor = {
Property: function (path) {
const k = path.node.key.name || path.node.key.value
if (k !== 'config') {
return
}
path.stop()
const { metadata } = path.hub.file
const { code } = generate(path.node.value, {}, '')
metadata.config = { code, node: path.node.value, value: babelon.eval(code) }
// path.remove()
}
}
// config 的遍历器
const configVisitor = {
ExportDefaultDeclaration: function (path) {
path.traverse(traverseConfigVisitor)
path.remove()
},
NewExpression: function (path) {
const { metadata } = path.hub.file
const { importsMap } = getImportsMap(metadata)
const calleeName = path.node.callee.name
const isVue = /vue$/.test(importsMap[calleeName])
if (!isVue) {
return
}
const arg = path.node.arguments[0]
const v = arg.type === 'Identifier' ? importsMap[arg.name] : importsMap['App']
metadata.rootComponent = v || importsMap['index'] || importsMap['main']
}
}
function parseConfig (babel) {
return { visitor: configVisitor }
}
// 解析 components
const traverseComponentsVisitor = {
Property: function (path) {
if (path.node.key.name !== 'components') {
return
}
path.stop()
const { metadata } = path.hub.file
const { importsMap } = getImportsMap(metadata)
// 找到所有的 imports
const { properties } = path.node.value
const components = {}
properties.forEach(p => {
const k = p.key.name || p.key.value
const v = p.value.name || p.value.value
components[k] = importsMap[v]
})
metadata.components = components
}
}
// components 的遍历器
const componentsVisitor = {
ExportDefaultDeclaration: function (path) {
path.traverse(traverseComponentsVisitor)
}
}
function parseComponentsDeps (babel) {
return { visitor: componentsVisitor }
}
module.exports = { parseConfig, parseComponentsDeps }
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