[Error] Global Node Objects '__dirname' and '__filename'

[andrewjtorres]

What version of TypeScript are you using?
2.0.3

What version of typescript-eslint-parser are you using?
1.0.2

What code were you trying to parse?

export const sequelizeData = new Umzug({

  migrations: {
    params: [sequelize.getQueryInterface(), Sequelize],
    path: path.resolve(__dirname, './seeders'),
    pattern: /^[A-Z]+\.js$/i,
  },

  storage: 'sequelize',

  storageOptions: {
    modelName: 'SequelizeData',
    sequelize,
    tableName: 'sequelize_data',
  },

});

What did you expect to happen?
This project was originally pure JavaScript, my team and I are currently in the process of migrating it to TypeScript. Prior to the migration, the line: path: path.resolve(__dirname, './seeders'),, would pass our linting rules.

What happened?
After implementing 'typescript-eslint-parser', the line: path: path.resolve(__dirname, './seeders'),, results in a 'no-undef' error.

[nzakas]

Can you please paste in the complete error you're seeing?

[andrewjtorres]

No problem. The following image is the error produced by ESLint:

I am not sure if this has any relevance at all, but it looks like '__dirname' in the image has 3 underscores preceding the word "dirname" as opposed to the expected 2.

[soda0289]

This looks to be a bug in typescript. Any variable, function, or class declaration that starts with two underscores will have three when parsed.

Related:
microsoft/TypeScript#11902
microsoft/TypeScript#3268

Will look into a possible fix.

[soda0289]

I have opened a new typescript issue for this bug:
microsoft/TypeScript#14013

[JamesHenry]

Thanks for hunting that down, @soda0289! I'll ping the TypeScript team if they don't pick up on that issue soon

[soda0289]

Got a response from typescript. We can use the unescapeIdentifier function to return the real identifier name. Will submit PR soon.

[JamesHenry]

@ajtorres9 This should now be fixed on master. NPM update will likely follow once the other open PR is merged

[andrewjtorres]

Thanks all for your efforts, I appreciate it. 👍