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use once_cell::sync::Lazy;
use serde::Deserialize;
pub const DATA_STR: &str =
include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/declarations/Enums.toml"));
pub static DATA: Lazy<Enums> = Lazy::new(|| toml::from_str(DATA_STR).unwrap());
#[derive(Deserialize, Debug)]
#[serde(deny_unknown_fields)]
pub struct Enums {
#[serde(rename = "enum")]
pub enums: Vec<Enum>,
#[serde(rename = "bitflag")]
pub bitflags: Vec<Enum>,
}
#[derive(Deserialize, Clone, Debug)]
#[serde(deny_unknown_fields)]
pub struct Enum {
pub name: String,
pub doc: Option<String>,
#[serde(rename = "type")]
pub use_type: Option<String>,
pub variants: Vec<Variant>,
}
#[derive(Deserialize, Clone, Debug)]
#[serde(deny_unknown_fields)]
pub struct Variant {
pub name: String,
pub doc: String,
pub value: Option<u64>,
}
impl Enum {
pub fn bitwidth(&self) -> u32 {
let mut leading_zeros = 0;
let mut value: u64 = 0;
for v in &self.variants {
if let Some(v) = v.value {
leading_zeros = std::cmp::min(leading_zeros, value.leading_zeros());
value = v;
} else {
value += 1;
}
}
leading_zeros = std::cmp::min(leading_zeros, value.leading_zeros());
(64 - leading_zeros).next_power_of_two()
}
}