1 unstable release
0.1.0 | Jun 20, 2024 |
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#1498 in Procedural macros
7KB
66 lines
bitwise_boolean
A Rust macro to generate bitwise boolean getters and setters for a struct.
Usage
To use the bitwise_boolean
macro, add the following to your Cargo.toml
file:
[dependencies]
bitwise_boolean = "0.1.0"
Then, use the macro in your code:
use bitwise_boolean::BitwiseBoolean;
#[derive(Default, BitwiseBoolean)]
struct ExampleSettingsData {
// up to 8 flags total
#[bitwise_bool(
admin,
agreed_to_terms,
banned,
random_other_flag
)]
pub booleans: u8,
}
struct ExampleSettings {
data: ExampleSettingsData,
}
impl ExampleSettings {
fn new() -> Self {
Self {
data: ExampleSettingsData::default(),
}
}
}
Now, you can use the bitwise boolean getters and setters in your code:
let mut settings = ExampleSettings::new();
settings.data.set_admin(true);
assert!(settings.data.admin());
assert!(!settings.data.agreed_to_terms());
assert!(!settings.data.banned());
assert!(!settings.data.random_other_flag());
settings.data.set_agreed_to_terms(true);
assert!(settings.data.admin());
assert!(settings.data.agreed_to_terms());
assert!(!settings.data.banned());
assert!(!settings.data.random_other_flag());
settings.data.set_banned(true);
assert!(settings.data.admin());
assert!(settings.data.agreed_to_terms());
assert!(settings.data.banned());
assert!(!settings.data.random_other_flag());
settings.data.set_random_other_flag(true);
assert!(settings.data.admin());
assert!(settings.data.agreed_to_terms());
assert!(settings.data.banned());
assert!(settings.data.random_other_flag());
Limitations
The bitwise_boolean
macro currently supports up to 8 flags per struct.
License
This project is licensed under the MIT License.
Dependencies
~1.5MB
~35K SLoC