How to get information about dynamic imports in plugin context

[btd]

Documentation Is:

• Missing
• Needed
• Confusing
• Not Sure?

Please Explain in Detail...

If i use generateBundle hook, i can get imports and dynamicImports for chunks. If i go deep starting to get dependency graph with this.getModuleInfo function - it returns only importedIds, which do not contain info about dynamic imports. It could be simplified to like:

C ---> A --- dynamic ---> B
       |
       v
       D

In this case i will get C->A, A->D only.

Your Proposal for Changes

Include dynamicImportedIds to this.getModuleInfo? Or somehow to get this info from chunk if it was generated because it was imported by some other place?

Thank you

[lukastaegert]

Will add this to an upcoming PR, thanks for your patience!

[btd]

Thanks, yesterday i tried to implement it myself

[lukastaegert]

What timing... This is the PR in question: #3449

[btd]

May i ask question while you are here. Is it possible to gather source after treeshake? I mean with removed imports/exports and if some parts of not used code removed?
I need this to make more precise gzip/brotli size (currently i just get it from transform hook)

[lukastaegert]

Theoretically yes, but it would not be for free performance wise. We could add a getter to the return value that calculates the size on call.

[btd]

Ahh, ok. I imagined something like this. Thanks anyway.

[lukastaegert]

I might still add this in the way I described. It should not be hard to implement, it will be just another .toString on the magicString bundle. The question is what should happen if you call it before tree-shaking, I would probably let it throw.

[btd]

Yes, all wrong usage should throw ideally. It is better to be explicit that something used not right instead of silent fail.

[lukastaegert]

Ok, I decided to not add this yet as I would rather first refactor the hashing algorithm before making this available. I must admit this is not ideal, could you reopen a separate issue for making the rendered source available so that it is not forgotten?

[btd]

Thanks a lot. I will create one more