hlua_badtouch/
macros.rs

1#[macro_export]
2macro_rules! implement_lua_push {
3    ($ty:ty, $cb:expr) => {
4        impl<'lua, L> $crate::Push<L> for $ty where L: $crate::AsMutLua<'lua> {
5            type Err = $crate::Void;      // TODO: use ! instead
6            #[inline]
7            fn push_to_lua(self, lua: L) -> Result<$crate::PushGuard<L>, ($crate::Void, L)> {
8                Ok($crate::push_userdata(self, lua, $cb))
9            }
10        }
11        
12        impl<'lua, L> $crate::PushOne<L> for $ty where L: $crate::AsMutLua<'lua> {
13        }
14    };
15}
16
17#[macro_export]
18macro_rules! implement_lua_read {
19    ($ty:ty) => {
20        impl<'s, 'c> hlua::LuaRead<&'c mut hlua::InsideCallback> for &'s mut $ty {
21            #[inline]
22            fn lua_read_at_position(lua: &'c mut hlua::InsideCallback, index: i32) -> Result<&'s mut $ty, &'c mut hlua::InsideCallback> {
23                // FIXME:
24                unsafe { ::std::mem::transmute($crate::read_userdata::<$ty>(lua, index)) }
25            }
26        }
27
28        impl<'s, 'c> hlua::LuaRead<&'c mut hlua::InsideCallback> for &'s $ty {
29            #[inline]
30            fn lua_read_at_position(lua: &'c mut hlua::InsideCallback, index: i32) -> Result<&'s $ty, &'c mut hlua::InsideCallback> {
31                // FIXME:
32                unsafe { ::std::mem::transmute($crate::read_userdata::<$ty>(lua, index)) }
33            }
34        }
35
36        impl<'s, 'b, 'c> hlua::LuaRead<&'b mut &'c mut hlua::InsideCallback> for &'s mut $ty {
37            #[inline]
38            fn lua_read_at_position(lua: &'b mut &'c mut hlua::InsideCallback, index: i32) -> Result<&'s mut $ty, &'b mut &'c mut hlua::InsideCallback> {
39                let ptr_lua = lua as *mut &mut hlua::InsideCallback;
40                let deref_lua = unsafe { ::std::ptr::read(ptr_lua) };
41                let res = Self::lua_read_at_position(deref_lua, index);
42                match res {
43                    Ok(x) => Ok(x),
44                    _ => Err(lua)
45                }
46            }
47        }
48
49        impl<'s, 'b, 'c> hlua::LuaRead<&'b mut &'c mut hlua::InsideCallback> for &'s $ty {
50            #[inline]
51            fn lua_read_at_position(lua: &'b mut &'c mut hlua::InsideCallback, index: i32) -> Result<&'s $ty, &'b mut &'c mut hlua::InsideCallback> {
52                let ptr_lua = lua as *mut &mut hlua::InsideCallback;
53                let deref_lua = unsafe { ::std::ptr::read(ptr_lua) };
54                let res = Self::lua_read_at_position(deref_lua, index);
55                match res {
56                    Ok(x) => Ok(x),
57                    _ => Err(lua)
58                }
59            }
60        }
61    };
62}
hlua_badtouch/macros.rs

hlua_badtouch/
macros.rs
