Support Call Hierarchy Requests

[ckipp01]

In LSP 3.16 support for Call Hierarchy requests were added. You can find information about them here in the spec.

You can see an example of this from Rust, which will give you an idea of what it looks like:

rust-lang/rust-analyzer#2698
Search terms:
LSP, call hierarchy

[tgodzik]

Btw. we need to wait for eclipse-lsp4j/lsp4j#466

[ckipp01]

Btw. we need to wait for eclipse/lsp4j#466

I'm pretty sure it was included in https://github.com/eclipse/lsp4j/releases/tag/v0.10.0

[tgodzik]

Ach, that might be, I though that no actual work was done on 3.16, but:

Implemented LSP version 3.16.0 (specification is not finalized yet)

[ckipp01]

Ach, that might be, I though that no actual work was done on 3.16, but:

Implemented LSP version 3.16.0 (specification is not finalized yet)

🤔 it looks like some stuff is there and was included in eclipse-lsp4j/lsp4j#456, but then there was another follow up eclipse-lsp4j/lsp4j#472. So it's half there 😆

[nixel2007]

You could use snapshot builds from master branch (like jitpack.io). CallHierarchy works pretty well on bsl language server from snapshot build (https://github.com/1c-syntax/bsl-language-server/blob/develop/build.gradle.kts#L60)

[riiswa]

Hey! I will start to work on this feature :)