bc518174
 王天杨
提交两个项目文件
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import findRoot from 'find-root'
import memoize from '@emotion/memoize'
import nodePath from 'path'
import hashString from '@emotion/hash'
import escapeRegexp from 'escape-string-regexp'
let hashArray = (arr /*: Array<string> */) => hashString(arr.join(''))
const unsafeRequire = require
const getPackageRootPath = memoize(filename => findRoot(filename))
const separator = new RegExp(escapeRegexp(nodePath.sep), 'g')
const normalizePath = path => nodePath.normalize(path).replace(separator, '/')
export function getTargetClassName(state, t) {
if (state.emotionTargetClassNameCount === undefined) {
state.emotionTargetClassNameCount = 0
}
const hasFilepath =
state.file.opts.filename && state.file.opts.filename !== 'unknown'
const filename = hasFilepath ? state.file.opts.filename : ''
// normalize the file path to ignore folder structure
// outside the current node project and arch-specific delimiters
let moduleName = ''
let rootPath = filename
try {
rootPath = getPackageRootPath(filename)
moduleName = unsafeRequire(rootPath + '/package.json').name
} catch (err) {}
const finalPath =
filename === rootPath ? 'root' : filename.slice(rootPath.length)
const positionInFile = state.emotionTargetClassNameCount++
const stuffToHash = [moduleName]
if (finalPath) {
stuffToHash.push(normalizePath(finalPath))
} else {
stuffToHash.push(state.file.code)
}
const stableClassName = `e${hashArray(stuffToHash)}${positionInFile}`
return stableClassName
}
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