LuaLS / LuaLS/lua-language-server
Inheriting from a generic class, which uses an annotated table definition causes fields to get lost
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- Dominant language
- Lua
- Stars
- 4.4k
- Forks
- 442
- PR merge metrics
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Description
How are you using the lua-language-server?
NeoVim
Which OS are you using?
Windows
What is the issue affecting?
Annotations, Type Checking
Expected Behaviour
--- (field) Specific.value: string
hover(t.value)
Actual Behaviour
--- (field) Specific.value: unknown
hover(t.value)
Reproduction steps
---@class GenericSuper<T> : { value: T }
---@class Specific : GenericSuper<string>
---@type Specific
local t
hover(t.value)
Then hover on t.value
Additional Notes
Interestingly this seems to only affect inheriting from table constructor. When converting it into a field, it works as expected:
---@class GenericSuper<T>
---@field value T
---@class Specific : GenericSuper<string>
---@type Specific
local t
--- (field) Specific.value: string
hover(t.value)
Log File
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the issue in NeoVim using the GenericSuper table constructor and the Specific : GenericSuper inheritance shown in the report. Compare hover results for the table-constructor form and the equivalent @field form; done means t.value is inferred as string in the inherited table-constructor case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- lua
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100