[Feature] Webpack 5 `cache` support

• I’d be willing to implement this feature

Describe the user story

I am currently using this module as part of @marko/webpack. The loader for this module adds virtual modules while compiling the Marko templates.

Problem is that with the new filesystem cache in webpack 5 since those compilations are cached this module does not properly represent the virtual file system anymore.

Describe the solution you’d like

I think it’d be nice if this module would store any virtual files in the compilation in the webpack cache compilation.cache.store and retrieve them when the compilation initializes.

Describe the drawbacks of your solution

The cache api’s are async and so it may slightly complicate the code.

[VincentGarreau]

Any news regarding this issue? 😃

[xwchris]

I think I have find the problem, I will test the code and create a pr