Chunk.hasEntryModule has been deprecated

[miusuncle]

[DEP_WEBPACK_CHUNK_HAS_ENTRY_MODULE] DeprecationWarning: Chunk.hasEntryModule: Use new ChunkGraph API

[joeldenning]

I don't know of a way to check whether a chunk has entry modules without calling hasEntryModule(), and also don't have a strong desire to research it further since it's just a deprecation warning. If someone knows how to do so, please share.

[frehner]

I could be totally wrong on this, since webpack plugin docs are severely lacking, but it appears that you can do

- if (chunk.hasEntryModule()) {
+ if (compilation.chunkGraph.getNumberOfEntryModules(chunk) > 0) {

Based on what I'm seeing from this PR https://github.com/fqborges/webpack-fix-style-only-entries/pull/41/files

However, I think that's a webpack 5 only thing, so you would then need to do some sort of webpack version checking (or drop support for 4?) in order to use that. I think. Again, webpack docs are horrible.

[zepster]

Created #23. I checked on our project - is ok. Also works with https://webpack.js.org/configuration/experiments/#experimentsbackcompat now (before failed)

@frehner thx for inside.