bevy_retro_macros/
lib.rs

1//! Macros used in Bevy Retro
2
3/// Utility to implement deref for single-element tuple structs
4///
5/// This is particularly useful when you need to create a Bevy
6///
7/// # Example
8///
9/// ```no-test
10/// # use bevy_retro_macros::impl_deref;
11///
12/// #[derive(Component)]
13/// struct Score(usize);
14///
15/// impl_deref!(Score, usize);
16/// ```
17#[macro_export]
18macro_rules! impl_deref {
19    ($struct:ident, $target:path) => {
20        impl std::ops::Deref for $struct {
21            type Target = $target;
22
23            fn deref(&self) -> &Self::Target {
24                &self.0
25            }
26        }
27
28        impl std::ops::DerefMut for $struct {
29            fn deref_mut(&mut self) -> &mut Self::Target {
30                &mut self.0
31            }
32        }
33    };
34}
35
36/// Utility macro for adding an attribute to a batch of items
37///
38/// # Example
39///
40/// ```
41/// # use bevy_retro_macros::items_attr;
42/// // Only import these libraries for wasm targets
43/// items_attr!(cfg(wasm), {
44///     use web_sys;
45///     use js_sys;
46/// });
47/// ```
48#[macro_export]
49macro_rules! items_attr {
50    ($attr:ident($meta:meta), {
51        $(
52            $item:item
53        )*
54    }) => {
55        $(
56            #[$attr($meta)]
57            $item
58        )*
59    };
60}
bevy_retro_macros/lib.rs

bevy_retro_macros/
lib.rs
