macro_rules! bl_enum {
(
$(#[$meta:meta])*
$vis:vis enum $name:ident {
$( $variant:ident = $value:ident, )*
}
Default => $default:ident
) => {
$(#[$meta])*
#[repr(i32)]
#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
$vis enum $name {
$(
$variant = $value as i32,
)*
}
impl From<u32> for $name {
fn from(val: u32) -> Self {
match val as i32 {
$(
$value => $name::$variant,
)*
_ => $name::$default,
}
}
}
impl From<$name> for u32 {
fn from(val: $name) -> u32 {
val as u32
}
}
impl Default for $name {
fn default() -> Self {
$name::$default
}
}
};
}