segfault when using generics

[ttytm]

Describe the bug

v-analyzer crashes when working with generics. the issue happens more often in neovim than in vscode.

Expected Behavior

keeps running

Current Behavior

segfault

Reproduction Steps

E.g. in vlib/x/json2/decoder.v v-analyzer won't work - tested in VSCode as well as in neovim. The connection to the server closes

signal 11: segmentation fault
addr2line: '[0x4e6756]': No such file
[0x4e6756]
addr2line: '[0x5babc0]': No such file
...
[Error - 1:32:13 AM] Connection to server got closed. Server will not be restarted.
[Info  - 1:35:48 AM] v-analyzer version: 0.0.4-beta.1, commit: cae4a2c, OS: linux x64

In VSCode apparently below can be handled (I think the server restarts itself here), while in neovim a crash without restart seems more likely.

struct Foo[T] {
	foo T
}

// If it doesn't crash on paste try to remove and add the `bar T` parameter`
fn foo[T](bar T) {
	println(bar)
}

Possible Solution

No response

Additional Information/Context

might be an issue with V itself

Environment details (v doctor output)

linux, amd64

Editor name

nvim, vscode

v-analyzer Version

nightly

VS Code Extension Version

No response

[niklas-stegmann]

I discovered something similar today:

I have the following function:

fn test[T](data T) {
    println(data)
}

When I hover over the "T" after "data" with the mouse in VS Code, the language server crashes.

Version:

v-analyzer version: 0.0.5, commit: ef4243a, OS: windows x64
v-analyzer build with V 7c3c589
v-analyzer build at 2024-11-13 10:44:06
Client / Editor: Visual Studio Code 1.95.3

Error:

print_backtrace_skipping_top_frames is not implemented
[Error - 3:30:53 PM] Connection to server got closed. Server will not be restarted.