require.cache missing

[jfrconley]

❔ Question

What properties are supposed to be available on the require object at runtime? Is it intended to fully mirror the node require?

🔦 Context

I am testing out the new "--bundle-node-modules" option, but some node_modules try to get the keys for the require cache and die.

💻 Code Sample

This code will fail when bundled

Object.key(require.cache);

🌍 Your Environment

Software	Version(s)
Parcel	latest git

[DeMoorJasper]

It has no properties, it's just a function that takes in the location of a file. Or identifier in compiled code.

If you really wanna dig into parcel internals there is a resolve property on it but that's it.

You can have a look at https://github.com/parcel-bundler/parcel/blob/master/src/builtins/prelude.js for the entire implementation of require

[jfrconley]

Hmm, is there a reason that stubs for require.cache and the like couldn't be added to local require to better support bundled node modules? They wouldn't do anything, but I think it would still help compatibility

[DeMoorJasper]

What's the use-case?

[jfrconley]

Preventing code like this from crashing on startup
Object.keys(require.cache)
In my case, it's buried inside of a transitive dependency.
require.cache can validly be an empty object, I think it would be a simple way to improve compatibility

[DeMoorJasper]

Feel free to open up a PR or RFC