feat: support table.field = function style functions

Fixes #2

emmylua.md

@@ -175,7 +175,7 @@ end
 ---@see U.mul
 ---@see U.sum
 ---@see U.sub
-function U.magical(this, that)
+U.magical = function(this, that)
     return (U.mul(this, that) / U.sum(that, this)), (U.sum(this, that) * U.sub(that, this))
 end
 

src/fixtures/test.lua

@@ -38,14 +38,14 @@ local U = {}
 ---@param this number First number
 ---@param that number Second number
 local function mul(this, that)
-	print(this * that)
+    print(this * that)
 end
 
 ---Add two integar and print it
 ---@param this number First number
 ---@param that number Second number
 function U.sum(this, that)
-	print(this + that)
+    print(this + that)
 end
 
 ---Subtract second from the first integar
@@ -54,7 +54,7 @@ end
 ---@return number
 ---@usage `require("module.U").sub(10, 5)`
 function U.sub(this, that)
-	return this - that
+    return this - that
 end
 
 ---This is a magical function
@@ -65,8 +65,8 @@ end
 ---@see U.mul
 ---@see U.sum
 ---@see U.sub
-function U.magical(this, that)
-	return (U.mul(this, that) / U.sum(that, this)), (U.sum(this, that) * U.sub(that, this))
+U.magical = function(this, that)
+    return (U.mul(this, that) / U.sum(that, this)), (U.sum(this, that) * U.sub(that, this))
 end
 
 ---@class Human The Homosapien
@@ -78,11 +78,11 @@ end
 ---@return Human
 ---@usage `require('Human'):create()`
 function U:create()
-	return setmetatable({
-		legs = 2,
-		hands = 2,
-		brain = false,
-	}, { __index = self })
+    return setmetatable({
+        legs = 2,
+        hands = 2,
+        brain = false,
+    }, { __index = self })
 end
 
 ---@class Chai Ingredients for making chai
@@ -95,19 +95,19 @@ end
 ---A object containing the recipe for making chai
 ---@type Chai
 U.chai = {
-	milk = "1.5 Cup",
-	water = "0.5 Cup",
-	sugar = "3 tablespoon",
-	tea_leaves = "2 tablespoon",
-	cardamom = "2 pieces",
+    milk = '1.5 Cup',
+    water = '0.5 Cup',
+    sugar = '3 tablespoon',
+    tea_leaves = '2 tablespoon',
+    cardamom = '2 pieces',
 }
 
 ---@alias Lines string[] All the lines in the buffer
 
 ---Returns all the content of the buffer
 ---@return Lines
 function U.get_all()
-	return vim.api.nvim_buf_get_lines(0, 0, -1, false)
+    return vim.api.nvim_buf_get_lines(0, 0, -1, false)
 end
 
 return U

src/frontend/lua.rs

@@ -38,9 +38,14 @@ impl Lua {
                     .then_ignore(just('='))
                     .map(|x| format!("---@expr {x} private")),
             ))),
-            func.ignore_then(dotted)
+            func.clone()
+                .ignore_then(dotted)
                 .map(|x| format!("---@func {x} public")),
-            expr.map(|x| format!("---@expr {x} public")),
+            choice((
+                expr.then_ignore(func)
+                    .map(|x| format!("---@func {x} public")),
+                expr.map(|x| format!("---@expr {x} public")),
+            )),
             keyword("return")
                 .ignore_then(ident().padded())
                 .then_ignore(end())

stylua.toml

@@ -0,0 +1,4 @@
+line_endings = "Unix"
+indent_type = "Spaces"
+indent_width = 4
+quote_style = "AutoPreferSingle"