Babel 7

[sharmilajesupaul]

Bumps deps to Babel v7

babel-cli@^6.26.0 -> @babel/cli@^7.1.2
babel-core@^6.26.3 -> @babel/core@^7.1.2
babel-register@^6.26.0 -> @babel/register@^7.0.0
[email protected]  -> ^3.0.1

Also bumps tape: ^4.9.0 -> ^4.9.1

Also updated the npm test script to use @babel/register and updated the readme to require @babel/core.

Looks like some new lines were removed while transforming with Babel 7 🤔, so I omitted them in the expected fixtures (d8397fd).

Tested this by npm linking to the Babel 7 branch on babel-preset-airbnb (airbnb/babel-preset-airbnb#37), and running tests.

[loganfsmyth]

I'm not a maintainer of this module, but FYI this whole module could be rewritten as

export default ({ template }) => {
  const buildImport = template(`
    (new Promise((resolve) => {
      require.ensure([], (require) => {
        resolve(require(SOURCE));
      });
    }))
  `);
  
  return {
    manipulateOptions(opts, parserOpts) {
      parserOpts.plugins.push("dynamicImport");
    },

    visitor: {
      Import(path) {
        const newImport = buildImport({
          SOURCE: path.parentPath.node.arguments,
        });
        path.parentPath.replaceWith(newImport);
      },
    },
  };
};

and work on both Babel 6 and 7, I'd expect. Generally we don't recommend importing babel-template or @babel/template directly. The expectations are less clear for @babel/plugin-syntax-dynamic-import, but there's nothing wrong with just setting the parser plugin directly if you want.

[sharmilajesupaul]

TIL. This seems like a much better alternative to releasing a breaking change that only supports Babel v7. I'll update this PR. Thanks @loganfsmyth!

[sharmilajesupaul]

closing this package is now compatible with babel v6 & v7