LuaLS / LuaLS/lua-language-server
Infer pcall arguments from the first function parameter
还没有人认领这个 Issue。
- 主要语言
- Lua
- 星标
- 4.4k
- 派生
- 442
- PR 合并指标
- 30 天内没有已合并 PR
描述
Hi 👋
I was wondering if it would be possible for LuaLS to infer the types of the arguments passed to pcall based on the signature of its first function argument. This would significantly improve developer experience, especially when working with typed Lua (e.g., EmmyLua annotations) or when relying on auto-completion and type checking.
Example:
local function greet(name: string)
print("Hello, " .. name)
end
pcall(greet, "world")
^- here we should see `name: string`
In this case, it would be great if LuaLS could infer that greet expects a string, and therefore type-check or suggest "world" accordingly when passed to pcall.
Currently, the parameters after the first one are not checked or suggested with much context, making it less ergonomic when using pcall (or other similar functions) for safe calls.
贡献指南
从这里开始
- 先读完整个 Issue,再读项目的贡献指南。
- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库,在一个分支上完成修改。
- 提交 Pull Request,并在描述里引用这个 Issue 编号。
调研方向
首先追踪 LuaLS 如何处理示例中所示的 pcall 调用,以及它如何根据函数签名检查参数。确定相关的类型检查和补全路径,然后验证第一个函数参数之后的参数是否获得类型化 Lua 调用所需的预期上下文。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- lua
- 领域
- developer-experience, devtools
- Issue 类型
- 功能
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 活跃度
- 停滞
- 描述清晰度
- 基本清楚
- 新手友好度
- 42/100