Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[eslint] Allow "latest" as ecmaVersion #13638

Merged
merged 4 commits into from Aug 30, 2021
Merged

[eslint] Allow "latest" as ecmaVersion #13638

Show file tree
Hide file tree
Changes from 2 commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
3be8ad8
Allow `"latest"` as `ecmaVersion`
fisker Aug 5, 2021
afd91df
Style
fisker Aug 5, 2021
0db9bee
Use `1e8`
fisker Aug 19, 2021
fb7cdea
Update config.js
fisker Aug 19, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
2 changes: 1 addition & 1 deletion eslint/babel-eslint-parser/src/configuration.cjs
View file
Open in desktop
Expand Up @@ -11,7 +11,7 @@ exports.normalizeESLintConfig = function (options) {

return {
babelOptions: { cwd: process.cwd(), ...babelOptions },
ecmaVersion,
ecmaVersion: ecmaVersion === "latest" ? 2020 : ecmaVersion,
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

The latest is 2022 as of August 2021. I think we can normalize "latest" to 1e8 like acorn did (https://github.com/acornjs/acorn/blob/691a31b1e3d6936f4e6991da3d81c1a6b06610cf/acorn/src/options.js#L109) so we don't have to update it every year.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Good idea.

Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

See you again in 99997979 years to update this!

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I won't miss the date.

sourceType,
allowImportExportEverywhere,
requireConfigFile,
Expand Down
19 changes: 19 additions & 0 deletions eslint/babel-eslint-tests/test/integration/eslint/config.js
View file
Open in desktop
Expand Up @@ -21,4 +21,23 @@ describe("ESLint config", () => {
});
expect(messages.length).toEqual(0);
});

it('should allow ecmaVersion to "latest"', () => {
const linter = new eslint.Linter();
linter.defineParser("@babel/eslint-parser", parser);
// ImportDeclarations result in a parser error if ecmaVersion < 2015 and sourceType != "module".
const messages = linter.verify('import { hello } from "greetings"', {
parser: "@babel/eslint-parser",
parserOptions: {
ecmaVersion: "latest",
babelOptions: {
configFile: path.resolve(
path.dirname(fileURLToPath(import.meta.url)),
"../../../../babel-eslint-shared-fixtures/config/babel.config.js",
),
},
},
});
expect(messages.length).toEqual(0);
});
});