splitChunks.cacheGroups.{cacheGroup}.name does not accept a function

[oqx]

System Info

System:
OS: macOS 13.3.1
CPU: (16) x64 Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz
Memory: 6.85 GB / 32.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 19.6.0 - /usr/local/bin/node
Yarn: 1.22.19 - /usr/local/bin/yarn
npm: 9.6.2 - /usr/local/bin/npm
Browsers:
Brave Browser: 112.1.50.114
Chrome: 113.0.5672.126
Firefox: 109.0.1
Safari: 16.4
Safari Technology Preview: 16.4
npmPackages:
@rspack/cli: ^0.2.0 => 0.2.0

Details

The docs indicate that the name property within a chunkGroups object accepts a function, but rspack throws an error, and the types indicate that a function is not an acceptable value. This is also the case with splitChunks.name.

Error:

Error: Failed to convert JavaScript value `function name(..) ` into rust type `String`
    at Compiler._Compiler_instance_get (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/@rspack+core@0.2.0_webpack-dev-server@4.13.1_webpack@5.76.0/node_modules/@rspack/core/src/compiler.ts:280:4)
    at __classPrivateFieldGet (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/@rspack+core@0.2.0_webpack-dev-server@4.13.1_webpack@5.76.0/node_modules/@rspack/core/dist/compiler.js:34:48)
    at Compiler.build (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/@rspack+core@0.2.0_webpack-dev-server@4.13.1_webpack@5.76.0/node_modules/@rspack/core/src/compiler.ts:815:24)
    at /Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/@rspack+core@0.2.0_webpack-dev-server@4.13.1_webpack@5.76.0/node_modules/@rspack/core/src/compiler.ts:784:11
    at Hook.eval [as callAsync] (eval at create (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/tapable@2.2.1/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:6:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/tapable@2.2.1/node_modules/tapable/lib/Hook.js:18:14)
    at /Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/@rspack+core@0.2.0_webpack-dev-server@4.13.1_webpack@5.76.0/node_modules/@rspack/core/src/compiler.ts:779:20
    at Hook.eval [as callAsync] (eval at create (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/tapable@2.2.1/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:15:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/tapable@2.2.1/node_modules/tapable/lib/Hook.js:18:14)
    at doRun (/Users/jaykariesch/projects/rspack/react/node_modules/.pnpm/@rspack+core@0.2.0_webpack-dev-server@4.13.1_webpack@5.76.0/node_modules/@rspack/core/src/compiler.ts:775:25) {
  code: 'StringExpected'
}

Providing a string or a function allows you to use a custom name. Specifying either a string or a function that always returns the same string will merge all common modules and vendors into a single chunk. This might lead to bigger initial downloads and slow down page loads.

• https://www.rspack.dev/config/optimization-split-chunks.html#splitchunksname

Ideally I'd like to be able to leverage this feature as I do in webpack where each package that has a test match is fed through the chunkGroups group, so that I can return a new chunk for each package, rather than all of the packages being bundled into a single vendor chunk.

Reproduce link

https://github.com/oqx/rspack-vendor-chunks

Reproduce Steps

1. pnpm install
2. pnpm build
3. pnpm build:vendor

Details and commands are also in the README, and annotations are in the config files. There's also an abbreviated webpack.config.js that I use in a few projects to code split node modules.

[hyf0]

Rspack only supports passing string now.

The description parts have some mistakes, I will fix them soon.

I'm going to close this one for duplicated of #1653.

[hyf0]

Support passing function may significantly slow the compiling time, so we haven't decided whether to implement it.