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pub struct NamedStorage<T: ?Sized> {
pub name: String,
pub contents: Box<T>,
}
pub enum Subset {
AllPlain,
AllKeyed,
}
pub enum SerializationFormat {
SimpleJson,
}
pub trait Flatten {
fn as_u32(&self) -> u32;
}
impl Flatten for u32 {
fn as_u32(&self) -> u32 {
*self
}
}
impl Flatten for () {
fn as_u32(&self) -> u32 {
0
}
}
impl Flatten for bool {
fn as_u32(&self) -> u32 {
if *self {
1
} else {
0
}
}
}
pub struct LinearBuckets {
min: u32,
max: u32,
pub buckets: usize,
}
impl LinearBuckets {
pub fn new(min: u32, max: u32, buckets: usize) -> LinearBuckets {
assert!(min < max);
assert!(buckets > 0);
assert!(buckets < (max - min) as usize);
LinearBuckets { min, max, buckets }
}
pub fn get_bucket(&self, value: u32) -> usize {
if value <= self.min {
0
} else if value >= self.max {
self.buckets - 1 as usize
} else {
let num = value as f32 - self.min as f32;
let den = self.max as f32 - self.min as f32;
let res = (num / den) * self.buckets as f32;
res as usize
}
}
}
pub fn vec_with_size<T>(size: usize, value: T) -> Vec<T>
where
T: Clone,
{
let mut vec = Vec::with_capacity(size);
vec.resize(size, value);
vec
}