LuaLS processes the wrong LuaDoc for Penlight tablex.filter

在 VS Code 中使用 LuaLS 和 Penlight addon 重现该诊断，然后检查第 545 行附近的 library/pl/tablex.lua，尤其是两个 tablex.filter 定义。跟踪 LuaLS 如何解析这些定义，并验证是否选择了泛型重载，使示例不再报告无效的函数参数。

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Windows

What is the issue affecting?

Libraries

Expected Behaviour

local tablex = require("pl.tablex")

tablex.filter(
    {},
    function() end -- no linting error
)

Actual Behaviour

local tablex = require("pl.tablex")

tablex.filter(
    {},
    function() end -- Cannot assign `function` to parameter `"()"|"<"|"<="|"=="|">"...(+5)`. (...)
)

Reproduction steps

1. Setup LuaLS and copy example code into a .lua file
2. Install Penlight using the Addon Manager

Additional Notes

Here's an extract of the LuaDoc. LuaLS seems to always pick the second definition instead of the first one which has the annotations for using a generic function.

---@generic T, A
---@param t T[]
---@param pred fun(val: T, arg: A): any
---@param arg A
---@return T[]
---@nodiscard
function tablex.filter(t, pred, arg) end

---filter an array's values using a predicate function
---@generic T
---@param t T[] -- a list-like table
---@param pred pl.BoolBinOpString -- a boolean function
---@param arg any -- optional argument to be passed as second argument of the predicate
---@return T[]
---@nodiscard
function tablex.filter(t, pred, arg) end

https://github.com/goldenstein64/pl-definitions/blob/ef73834d7b54b989a4decf9f4598b83b3c9ef621/library/pl/tablex.lua#L545

Log File

I set --loglevel=trace and added the code to an empty file while having tail running on the log but there are no relevant details.

$ tail -f ./file_home_function_git_dragdown-modules.log
[13:59:35.741][debug][#0:script/vm/node.lua:490]: clearNodeCache
[13:59:35.741][trace][#0:script/files.lua:286]: Set text:       untitled:Untitled-1     takes   0.00012299999999987     sec.
[13:59:35.741][trace][#0:script/files.lua:695]: Compile State:  untitled:Untitled-1
[13:59:35.843][debug][#0:script/provider/provider.lua:1120]: textDocument/semanticTokens/range
[13:59:35.857][debug][#0:script/provider/diagnostic.lua:330]: publishDiagnostics        untitled:Untitled-1     2
[13:59:40.272][debug][#0:script/vm/node.lua:490]: clearNodeCache
[13:59:40.273][trace][#0:script/files.lua:286]: Set text:       untitled:Untitled-1     takes   0.00021399999999971     sec.
[13:59:40.373][trace][#0:script/files.lua:695]: Compile State:  untitled:Untitled-1
[13:59:40.374][debug][#0:script/provider/provider.lua:1120]: textDocument/semanticTokens/range
[13:59:40.381][info] [#0:script/provider/diagnostic.lua:171]: clearDiagnostics  untitled:Untitled-1
[13:59:47.118][debug][#0:script/vm/node.lua:490]: clearNodeCache
[13:59:47.118][trace][#0:script/files.lua:286]: Set text:       untitled:Untitled-1     takes   0.00020199999999981     sec.
[13:59:47.219][trace][#0:script/files.lua:695]: Compile State:  untitled:Untitled-1
[13:59:47.220][debug][#0:script/provider/provider.lua:1120]: textDocument/semanticTokens/range
[13:59:47.232][debug][#0:script/provider/diagnostic.lua:330]: publishDiagnostics        untitled:Untitled-1     2