more than one return of require

[tweyseo]

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?

Diagnostics/Syntax Checking

Expected Behaviour

no warnning

Actual Behaviour

need check nil

Reproduction steps

local a = require("a")
local b1, b2 = require("b")

a:get()
b2:get(b1) -- warnning: need check nil

Additional Notes

No response

Log File

No response

[C3pa]

I have set up the workspace you described:

And finally the main.lua.

At the bottom of the image you can see the terminal where I ran lua main.lua. The behavior you are complaining about is the default behavior of Lua's require function. The Language Server is correct here.

[tweyseo]

i mean The Language Server only considers one return value from require

[carsakiller]

It is not possible to return multiple values in Lua from a module, you can return a table of values, but not two separate values.

[sumneko]

This is how require works.

[CppCXY]

in lua5.4, there is a second return value when the file is first required.
but this feature doesn't make a lot of sense.

[sewbacca]

in lua5.4, there is a second return value when the file is first required. but this feature doesn't make a lot of sense.

The second value represents how the module was loaded.
I guess as a debugging feature it makes sense, so you can see if it is actually your module or some other which has been found.

[C3pa]

The second value represents how the module was loaded.
I guess as a debugging feature it makes sense, so you can see if it is actually your module or some other which has been found.

The annotations of require are already set up as you described:
https://github.com/LuaLS/lua-language-server/blob/master/meta/template/package.lua#LL3C1-L8C30