Attribute Macro lua_methods 

#[lua_methods]

Attribute macro on impl blocks — exposes public methods to Lua.

For each pub fn with a &self or &mut self receiver, generates:

1. A static fn(l: &mut LuaState) -> LuaResult<usize> wrapper
2. Automatic parameter extraction from Lua stack
3. Automatic return value conversion to Lua

Methods are accessible from Lua via obj:method(args) syntax.

Example

#[lua_methods]
impl Point {
    pub fn distance(&self) -> f64 {
        (self.x * self.x + self.y * self.y).sqrt()
    }
    pub fn translate(&mut self, dx: f64, dy: f64) {
        self.x += dx;
        self.y += dy;
    }
}