Suggestion: swc

[timreichen]

Suggestion: swc

[timreichen]

@shadowtime2000 A few reasons:

1. Deno.emit will bundle all resources together into one file. If there are multiple entry files that share dependencies, there will be duplicate code. I think a better way in browsers is to allow for code splitting explained here, which is not currently possible with Deno.emit.
2. Since this bundler supports different file types such as images, css and html etc., the correct output paths need to be injected, which is done by a typescript transformer. Deno.emit does not allow transformer hooks as of now.
3. Deno.emit does not use system modules anymore, though browsers do not yet support top level await.

But I am playing with the idea of using Deno.bundle if none of the upper arguments apply.

[timreichen]

No that was a good question. I asked on deno discord about a transfomer option for Deno.emit, seems to have gone lost. I would like to use either Deno.emit rather than the ts module, so if that became a thing I'd gladly switch.

[ije]

wish deno openPlugin become stable ASAP

[timreichen]

possible solution once feature-rich and stable: https://github.com/nestdotland/deno_swc/actions

[AndiLavera]

Any progress on this?

[timreichen]

Not yet sadly. Seems like the deno_swc rep hasn't been updated for months and before a switch, I would need some help to determine if all features are available. For example: How would transforming ts code to system (like in module:system in ts compilerOptions) work with swc? I never used swc myself and would need some help on this.

[shadowtime2000]

Any reason for not using Deno.emit with not setting bundle to just transpile the code @timreichen?

[shadowtime2000]

@timreichen Makes sense, but you can disable bundling with Deno.emit so that it only transpiles TS.

[timreichen]

Yes but I need the ts compiler to be able to do more than just transpile ts to js. There is a lot of ast manipulation going on for injecting paths and import statements etc.
What would the advantage of using Deno.emit be? I still would need to use a ast walker parallel to that.

[shadowtime2000]

@timreichen Fair point. I wasn't arguing with you, just pointing out that your first point about bundling didn't work 😄

[timreichen]

possible solution once feature-rich and stable: https://github.com/nestdotland/deno_swc/actions

After tests it seems that wasm based deno-swc is slower than the ts module. Closing this issue for now until more options are available. Feel free to reopen again.