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use std::{borrow::Cow, ops::Deref};
use smallvec::SmallVec;
pub enum ValueBuffer<'l> {
Borrowed(&'l [u8]),
Vec(Vec<u8>),
SmallVec(SmallVec<[u8; 16]>),
}
impl ValueBuffer<'_> {
pub fn into_vec(self) -> Vec<u8> {
match self {
ValueBuffer::Borrowed(b) => b.to_vec(),
ValueBuffer::Vec(v) => v,
ValueBuffer::SmallVec(sv) => sv.into_vec(),
}
}
pub fn into_small_vec(self) -> SmallVec<[u8; 16]> {
match self {
ValueBuffer::Borrowed(b) => SmallVec::from_slice(b),
ValueBuffer::Vec(v) => SmallVec::from_vec(v),
ValueBuffer::SmallVec(sv) => sv,
}
}
}
impl<'l> From<&'l [u8]> for ValueBuffer<'l> {
fn from(b: &'l [u8]) -> Self {
ValueBuffer::Borrowed(b)
}
}
impl From<Vec<u8>> for ValueBuffer<'_> {
fn from(v: Vec<u8>) -> Self {
ValueBuffer::Vec(v)
}
}
impl From<SmallVec<[u8; 16]>> for ValueBuffer<'_> {
fn from(sv: SmallVec<[u8; 16]>) -> Self {
ValueBuffer::SmallVec(sv)
}
}
impl<'l> From<Cow<'l, [u8]>> for ValueBuffer<'l> {
fn from(c: Cow<'l, [u8]>) -> Self {
match c {
Cow::Borrowed(b) => ValueBuffer::Borrowed(b),
Cow::Owned(o) => ValueBuffer::Vec(o),
}
}
}
impl Deref for ValueBuffer<'_> {
type Target = [u8];
fn deref(&self) -> &Self::Target {
match self {
ValueBuffer::Borrowed(b) => b,
ValueBuffer::Vec(v) => v,
ValueBuffer::SmallVec(sv) => sv,
}
}
}
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