Use TypeScript Transform Plugin instead of regexes

[phra]

This module uses regexes for transforming your export, instead of modifying the AST (there isn't a Babel equivalent for TypeScript declarations, is there?) so you should be careful not to write weird things like strings containing export default Foo, they will throw off this module.

have a look at these blog posts:

• https://dev.doctorevidence.com/how-to-write-a-typescript-transform-plugin-fc5308fdd943
• https://medium.com/@urish/diving-into-the-internals-of-typescript-how-i-built-typewiz-d273bbef3565

[fabiospampinato]

Awesome, thanks for the suggestion!

[fabiospampinato]

There's a small problem with using TypeScript's AST:

• I'm using TypeScript for compiling this transform, so I have it in my devDependencies.
• It should use TypeScript for transforming the AST, so I should have typescript also in my peerDependencies.
• How do I tell the transform to use the "parent" typescript instead of the local one?

Possible solutions:

• I might just require the latest version of typescript, but if the code to transform is using an older version of it may not work, as they often introduce breaking chances (i.e. unknown is now a reserved keyword and it wasn't so a few versions back)
• I could compile the transform using a globally-installed version of TypeScript, but that's a ugly solution since TypeScript is really a dev dependency and should be installed as such.

I'll have to think more about this 🤔

[phra]

have a look at https://github.com/urish/typewiz, it's written in typescript too.

[fabiospampinato]

I've just realized that's actually a non-issue, dev dependencies aren't installed along with the package 🤦‍♂️

[phra]

:smile: