Parse error with import()

Webpack 2 implements the newest import spec and got released recently, however import() statements break eslint!

Tell us about your environment OSX 10.11.6

• ESLint Version: 3.10
• Node Version: 5.12
• npm Version: 3.8.6

What parser (default, Babel-ESLint, etc.) are you using? default

Config

{
  "root": true,
  "parserOptions": {
    "ecmaVersion": "7",
    "sourceType": "module",
    "ecmaFeatures": {
      "impliedStrict": true,
      "experimentalObjectRestSpread": true
    },
  },

  "plugins": [
    "mocha",
    "babel"
  ],

  "env": {
    "es6": true,
    "browser": true,
    "jquery": true,
    "jasmine": true,
    "mocha": true,
    "commonjs": true,
    "phantomjs": true
  },
  "rules": {
    "babel/object-curly-spacing": [2, "never"],
    "object-curly-spacing": 0,
    "mocha/no-exclusive-tests": 1,
    "strict": [2, "global"],
    "no-constant-condition": [2, {"checkLoops": false}],
    "no-undef": 2,
    "no-use-before-define": 2,
    "new-cap": 0,
    "no-const-assign": 2,
    "key-spacing": 0,
    "block-spacing": [2, "never"],
    "array-bracket-spacing": [2, "never"],
    "brace-style": [2, "1tbs", {"allowSingleLine": true}],
    "camelcase": [2, {"properties": "always"}],
    "comma-spacing": [2, {"before": false, "after": true}],
    "max-statements-per-line": [2, {"max": 1}],
    "no-debugger": 1,
    "no-trailing-spaces": 1,
    "eol-last": 0,
    "no-dupe-keys": 2,
    "no-dupe-args": 2,
    "no-dupe-class-members": 2,
    "no-useless-rename": 1,
    "prefer-spread": 2,
    "template-curly-spacing": [2, "never"],
    "no-useless-constructor": 1,
    "no-useless-computed-key": 2,
    "no-this-before-super": 2,
    "no-class-assign": 2,
    "no-duplicate-imports": 2,
    "no-duplicate-case": 2,
    "no-empty-character-class": 2,
    "no-ex-assign": 2,
    "no-empty": 2,
    "no-extra-boolean-cast": 1,
    "quote-props": [2, "as-needed"],
    "no-return-assign": 0,
    "one-var-declaration-per-line": [2, "always"],
    "no-whitespace-before-property": 1,
    "no-underscore-dangle": 0,
    "max-nested-callbacks": [2, 4],
    "space-unary-ops": [1, {
      "words": true,
      "nonwords": false
    }],
    "space-infix-ops": 2,
    "keyword-spacing": [2, {"before": true, "after": true}],
    "space-in-parens": [2, "never"],
    "space-before-function-paren": [1, "never"],
    "max-depth": [2, 6],
    "linebreak-style": [2, "unix"],
    "space-before-blocks": [1, "always"],
    "arrow-spacing": [2, {"before": true, "after": true}],
    "generator-star-spacing": [2, {"before": true, "after": false}],
    "constructor-super": 2,
    "object-shorthand": [2, "always"],
    "no-unused-vars": 2,
    "no-multi-spaces": 0,
    "no-multi-str": 2,
    "no-native-reassign": 2,
    "no-redeclare": 2,
    "no-self-compare": 2,
    "no-throw-literal": 2,
    "wrap-iife": [2, "inside"],
    "operator-linebreak": [2, "after"],
    "operator-assignment": [2, "always"],
    "no-spaced-func": 2,
    "no-unneeded-ternary": 1,
    "padded-blocks": [2, "never"],
    "prefer-template": 2,
    "no-func-assign": 2,
    "no-inner-declarations": 2,
    "no-invalid-regexp": 2,
    "no-regex-spaces": 1,
    "no-unreachable": 1,
    "no-proto": 2,
    "no-sparse-arrays": 2,
    "valid-typeof": 2,
    "block-scoped-var": 2,
    "dot-location": [2, "property"],
    "dot-notation": 2,
    "eqeqeq": 2,
    "no-alert": 2,
    "no-case-declarations": 2,
    "no-empty-pattern": 2,
    "no-eval": 2,
    "no-extra-bind": 1,
    "no-labels": 2,
    "no-lone-blocks": 2,
    "no-lonely-if": 2,
    "no-multiple-empty-lines": 1,
    "no-nested-ternary": 2,
    "no-restricted-syntax": ["error", "WithStatement"],
    "no-mixed-spaces-and-tabs": 1,
    "no-loop-func": 2,
    "use-isnan": 2,
    "no-irregular-whitespace": 1,
    "no-negated-in-lhs": 2,
    "no-obj-calls": 2,
    "prefer-const": 0,
    "one-var": [2, {"uninitialized": "always"}],
    "curly": 0,
    "computed-property-spacing": [2, "never"],
    "comma-style": [2, "last"],
    "no-console": 1,
    "indent": [2, 2, {
      "SwitchCase": 1,
      "VariableDeclarator": {
        "var": 2,
        "let": 2,
        "const": 3
      }
    }],
    "quotes": [2, "single"],
    "semi": [2, "never"],
    "no-extra-semi": 0
  }
}

What did you do? Please include the actual source code causing the issue.

import('./test.js')

What did you expect to happen? No errors What actually happened? Please include the actual, raw output from ESLint. Error in eslint from import

1:7  error  Parsing error: Unexpected token (

[not-an-aardvark]

@Retsam Our policy on supporting experimental features hasn’t changed (even if other tools recommend using experimental features), so it’s unlikely that we will support this until it reaches stage 4. If you want to see this happen sooner, one option would be to open an issue on https://github.com/tc39/proposal-dynamic-import to see if there is anything you can do to help move the process along.

[not-an-aardvark]

Hi,

import() is still an experimental syntax proposal (it’s at stage 3 of the four-stage process). ESLint generally doesn’t support syntax features until they reach stage 4 and become official.

To run ESLint on code with import(), I would recommend using the babel-eslint parser instead.