JS/TS server is started multiple time

Hi,
I'm beginning to test WildWebDeveloper in a fairly large workspace, with many projects containing TypeScript sources.

I see some strange effects, like:

• multiple identical Content Assist proposals (I have seen up to six),
• lots and lots of Node processes as children of Eclipse, even for projects for which I have no editor active,
• most importantly, a considerable slowdown while typing.

I still need to do more tests, so I cannot give you exact reproduction steps right now.

To give you the picture, I have 22 Eclipse projects that contain TS sources (and a tsconfig.json).
I am also using monorepo-like tooling, so my common libraries are all installed in a top-level node_modules directory.
The fact that there are multiple Node processes running does worry me, since I suspect that the same huge JS libraries are being parsed and evaluated multiple times, by every one of the servers.

I noticed that language server have a singleton property that guarantees that they are started only once per workspace.
However, the JS/TS language server is the only one that is not marked as singleton.
Why is that? Is it a deliberate choice or just an oversight?

A while back I had tried setting it as singleton and everything appeared to work perfectly.

Thanks.

まず JS/TS language server の設定とその singleton 設定を調べ、次に他の language server がどのように起動されるかを比較します。workspace ごとに 1 つの server が存在し、content-assist の重複した候補、過剰な Node プロセス、入力の遅延が解消されていることを確認できれば完了です。