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parse.js
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parse.js
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"use strict"
exports.__esModule = true
const moduleRequire = require('./module-require').default
const extname = require('path').extname
const log = require('debug')('eslint-plugin-import:parse')
exports.default = function parse(path, content, context) {
if (context == null) throw new Error('need context to parse properly')
let parserOptions = context.parserOptions
const parserPath = getParserPath(path, context)
if (!parserPath) throw new Error('parserPath is required!')
// hack: espree blows up with frozen options
parserOptions = Object.assign({}, parserOptions)
parserOptions.ecmaFeatures = Object.assign({}, parserOptions.ecmaFeatures)
// always attach comments
parserOptions.attachComment = true
// provide the `filePath` like eslint itself does, in `parserOptions`
// https://github.com/eslint/eslint/blob/3ec436ee/lib/linter.js#L637
parserOptions.filePath = path
// require the parser relative to the main module (i.e., ESLint)
const parser = moduleRequire(parserPath)
return parser.parse(content, parserOptions)
}
function getParserPath(path, context) {
const parsers = context.settings['import/parsers']
if (parsers != null) {
const extension = extname(path)
for (let parserPath in parsers) {
if (parsers[parserPath].indexOf(extension) > -1) {
// use this alternate parser
log('using alt parser:', parserPath)
return parserPath
}
}
}
// default to use ESLint parser
return context.parserPath
}