ce4c83ff
 wxy
初始提交
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"use strict"
const crypto = require('crypto')
, moduleRequire = require('eslint-module-utils/module-require').default
, hashObject = require('eslint-module-utils/hash').hashObject
const cache = new Map()
// must match ESLint default options or we'll miss the cache every time
const parserOptions = {
loc: true,
range: true,
raw: true,
tokens: true,
comment: true,
attachComment: true,
}
exports.parse = function parse(content, options) {
options = Object.assign({}, options, parserOptions)
if (!options.filePath) {
throw new Error("no file path provided!")
}
const keyHash = crypto.createHash('sha256')
keyHash.update(content)
hashObject(options, keyHash)
const key = keyHash.digest('hex')
let ast = cache.get(key)
if (ast != null) return ast
const realParser = moduleRequire(options.parser)
ast = realParser.parse(content, options)
cache.set(key, ast)
return ast
}
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