1#![no_std]
2
3pub use bobcat_storage::{const_keccak256_two_off_curve, storage_load, storage_store, U};
4
5#[macro_export]
6macro_rules! bobcat_feature {
7 ($feature_name:ident) => {
8 paste::paste! {
9 #[allow(unused)]
10 macro_rules! [<IF_FEATURE_ $feature_name:upper>] {
11 ($on_block:block, $off_block:block) => {
12 if $crate::storage_load(&$crate::const_keccak256_two_off_curve(
13 b"bobcat.features.",
14 stringify!($feature_name).as_bytes()
15 )).is_some() {
16 $on_block
17 } else {
18 $off_block
19 }
20 };
21 }
22
23 #[allow(unused)]
24 macro_rules! [<FEATURE_SET_ $feature_name:upper>] {
25 ($value:expr) => {
26 $crate::storage_store(
27 &$crate::const_keccak256_two_off_curve(
28 b"bobcat.features.",
29 stringify!($feature_name).as_bytes()
30 ),
31 &$crate::U::from($value)
32 )
33 };
34 }
35 }
36 };
37}
38
39#[cfg(all(test, feature = "std"))]
40mod test {
41 bobcat_feature!(test123);
42
43 #[test]
44 fn test_feature() {
45 FEATURE_SET_TEST123!(true);
46 assert!(IF_FEATURE_TEST123!({ true }, { false }));
47 }
48}