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feat: remove
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@1240318070
1240318070 committed Feb 19, 2024
1 parent 5c17275 commit ad5f79a
Showing 1 changed file with 134 additions and 154 deletions.
288 changes: 134 additions & 154 deletions packages/webpack-plugin/lib/template-compiler/compiler.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2409,179 +2409,159 @@ function genNode (node) {
*/
function parseOptionChain (str) {
const wxsName = `${optionsChainWxsName}.g`
const rules = [
{
// 处理视图里面使用可选链场景
rule: /\?\./,
replace (originStr, execRes) {
const grammarMap = {
init () {
const initKey = [
let optionsRes
while (optionsRes = /\?\./.exec(str)) {
const strLength = str.length
const grammarMap = {
init () {
const initKey = [
{
mapKey: '[]',
mapValue: [
{
mapKey: '[]',
mapValue: [
{
key: '[',
value: 1
},
{
key: ']',
value: -1
}
]
key: '[',
value: 1
},
{
mapKey: '()',
mapValue: [
{
key: '(',
value: 1
},
{
key: ')',
value: -1
}
]
key: ']',
value: -1
}
]
this.count = {}
initKey.forEach(({ mapKey, mapValue }) => {
mapValue.forEach(({ key, value }) => {
this[key] = this.changeState(mapKey, value)
})
})
},
changeState (key, value) {
if (!this.count[key]) {
this.count[key] = 0
}
return () => {
this.count[key] = this.count[key] + value
return this.count[key]
}
},
checkState () {
return Object.values(this.count).find(i => i)
}
}
const strLength = originStr.length
let leftIndex = execRes.index
let rightIndex = leftIndex + 2
let haveNotGetValue = true
let chainValue = ''
let chainKey = ''
let notCheck = false
grammarMap.init()
// 查 ?. 左边值
while (haveNotGetValue && leftIndex > 0) {
const left = originStr[leftIndex - 1]
const grammar = grammarMap[left]
if (notCheck) {
// 处于表达式内
chainValue = left + chainValue
if (grammar) {
grammar()
if (!grammarMap.checkState()) {
// 表达式结束
notCheck = false
{
mapKey: '()',
mapValue: [
{
key: '(',
value: 1
},
{
key: ')',
value: -1
}
}
} else if (~[']', ')'].indexOf(left)) {
// 命中表达式，开始记录表达式
chainValue = left + chainValue
notCheck = true
grammar()
} else if (left !== ' ') {
if (!/[A-Za-z0-9_$.]/.test(left)) {
// 结束
haveNotGetValue = false
leftIndex++
} else {
// 正常语法
chainValue = left + chainValue
}
]
}
leftIndex--
]
this.count = {}
initKey.forEach(({ mapKey, mapValue }) => {
mapValue.forEach(({ key, value }) => {
this[key] = this.changeState(mapKey, value)
})
})
},
changeState (key, value) {
if (!this.count[key]) {
this.count[key] = 0
}
if (grammarMap.checkState() && haveNotGetValue) {
// 值查找结束但是语法未闭合或者处理到边界还未结束，抛异常
throw new Error('[optionChain] option value illegal!!!')
return () => {
this.count[key] = this.count[key] + value
return this.count[key]
}
haveNotGetValue = true
let keyValue = ''
// 查 ?. 右边key
while (haveNotGetValue && rightIndex < strLength) {
const right = originStr[rightIndex]
const grammar = grammarMap[right]
if (notCheck) {
// 处于表达式内
if (grammar) {
grammar()
if (grammarMap.checkState()) {
keyValue += right
} else {
// 表达式结束
notCheck = false
chainKey += `,${keyValue}`
keyValue = ''
}
} else {
keyValue += right
}
} else if (~['[', '('].indexOf(right)) {
// 命中表达式，开始记录表达式
grammar()
if (keyValue) {
chainKey += `,'${keyValue}'`
keyValue = ''
}
notCheck = true
} else if (right !== ' ') {
if (!/[A-Za-z0-9_$.?]/.test(right)) {
// 结束
haveNotGetValue = false
rightIndex--
} else if (right !== '?') {
// 正常语法
if (right === '.') {
if (keyValue) {
chainKey += `,'${keyValue}'`
}
keyValue = ''
} else {
keyValue += right
}
}
},
checkState () {
return Object.values(this.count).find(i => i)
}
}
let leftIndex = optionsRes.index
let rightIndex = leftIndex + 2
let haveNotGetValue = true
let chainValue = ''
let chainKey = ''
let notCheck = false
grammarMap.init()
// 查 ?. 左边值
while (haveNotGetValue && leftIndex > 0) {
const left = str[leftIndex - 1]
const grammar = grammarMap[left]
if (notCheck) {
// 处于表达式内
chainValue = left + chainValue
if (grammar) {
grammar()
if (!grammarMap.checkState()) {
// 表达式结束
notCheck = false
}
rightIndex++
}
if (grammarMap.checkState() && haveNotGetValue) {
// key值查找结束但是语法未闭合或者处理到边界还未结束，抛异常
throw new Error('[optionChain] option key illegal!!!')
} else if (~[']', ')'].indexOf(left)) {
// 命中表达式，开始记录表达式
chainValue = left + chainValue
notCheck = true
grammar()
} else if (left !== ' ') {
if (!/[A-Za-z0-9_$.]/.test(left)) {
// 结束
haveNotGetValue = false
leftIndex++
} else {
// 正常语法
chainValue = left + chainValue
}
}
leftIndex--
}
if (grammarMap.checkState() && haveNotGetValue) {
// 值查找结束但是语法未闭合或者处理到边界还未结束，抛异常
throw new Error('[optionChain] option value illegal!!!')
}
haveNotGetValue = true
let keyValue = ''
// 查 ?. 右边key
while (haveNotGetValue && rightIndex < strLength) {
const right = str[rightIndex]
const grammar = grammarMap[right]
if (notCheck) {
// 处于表达式内
if (grammar) {
grammar()
if (grammarMap.checkState()) {
keyValue += right
} else {
// 表达式结束
notCheck = false
chainKey += `,${keyValue}`
keyValue = ''
}
} else {
keyValue += right
}
} else if (~['[', '('].indexOf(right)) {
// 命中表达式，开始记录表达式
grammar()
if (keyValue) {
chainKey += `,'${keyValue}'`
keyValue = ''
}
notCheck = true
} else if (!/[A-Za-z0-9_$.?]/.test(right)) {
// 结束
haveNotGetValue = false
rightIndex--
} else if (right !== '?') {
// 正常语法
if (right === '.') {
if (keyValue) {
chainKey += `,'${keyValue}'`
}
keyValue = ''
} else {
keyValue += right
}
return originStr.slice(0, leftIndex) + `${wxsName}(${chainValue},[${chainKey.slice(1)}])` + originStr.slice(rightIndex)
}
},
{
// 处理显式使用 $safe_get 场景
rule: /\$g\(.*\)/,
replace (originStr) {
return originStr.replace(/\$g/g, wxsName)
}
rightIndex++
}
]
rules.forEach(({ rule, replace }) => {
let optionsRes
while (optionsRes = rule.exec(str)) {
str = replace(str, optionsRes)
if (!haveOptionChain) {
haveOptionChain = true
}
if (grammarMap.checkState() && haveNotGetValue) {
// key值查找结束但是语法未闭合或者处理到边界还未结束，抛异常
throw new Error('[optionChain] option key illegal!!!')
}
})
if (keyValue) {
chainKey += `,'${keyValue}'`
}
str = str.slice(0, leftIndex) + `${wxsName}(${chainValue},[${chainKey.slice(1)}])` + str.slice(rightIndex)
if (!haveOptionChain) {
haveOptionChain = true
}
}
return str
}

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