The Slang Language Server server crashed when opening a slang file containing an incomplete 'import' statement (import with no module/path)

[yundong2001]

Summary

When editing a .slang file in VS Code, typing an incomplete import statement (just import with nothing after it) can crash the Slang Language Server (slangd) on Windows.

[Trace - 22:56:07] Sending request 'textDocument/inlayHint - (2)'.
Params: {
    "textDocument": {
        "uri": "path/Slangpy/Test/a.slang"
    },
    "range": {
        "start": {
            "line": 0,
            "character": 0
        },
        "end": {
            "line": 1,
            "character": 7
        }
    }
}


[Trace - 22:56:07] Received request 'workspace/inlayHint/refresh - (0)'.
[Trace - 22:56:07] Sending response 'workspace/inlayHint/refresh - (0)'. Processing request took 0ms
No result returned.


[Error - 22:56:07] The Slang Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
[Error - 22:56:07] Server process exited with code 3221225477.

This looks like a robustness bug in slangd’s incremental parsing / LSP request handling (e.g. documentSymbol, inlayHint) when encountering a syntactically incomplete import statement during editing.

Steps to Reproduce (Minimal)

1. Open VS Code in an empty folder (new workspace).
2. Create a new file: repro.slang
3. Type exactly:

   import

(i.e., the keyword import with no module/path/name after it)
4) Save the file (optional; crash may happen even without saving).
5) Observe the language server crashes immediately.

[szihs]

@expipiplus1 something you can take a look?

[jhelferty-nv]

@aidanfnv Could you take a look at this? Jay says you've looked into language server issues before.

[aidanfnv]

This issue should be fixed in release v2.0.7.
@yundong2001, please confirm if this version fixes the issue for you.