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use crate::*;
use alloc::vec::Vec;
use core::convert::TryFrom;
use core::iter::FromIterator;
#[derive(Debug)]
pub struct SequenceOf<T> {
pub(crate) items: Vec<T>,
}
impl<T> SequenceOf<T> {
#[inline]
pub const fn new(items: Vec<T>) -> Self {
SequenceOf { items }
}
#[inline]
pub fn len(&self) -> usize {
self.items.len()
}
#[inline]
pub fn is_empty(&self) -> bool {
self.items.is_empty()
}
#[inline]
pub fn iter(&self) -> impl Iterator<Item = &T> {
self.items.iter()
}
}
impl<'a, T> AsRef<[T]> for SequenceOf<T> {
fn as_ref(&self) -> &[T] {
&self.items
}
}
impl<'a, T> IntoIterator for &'a SequenceOf<T> {
type Item = &'a T;
type IntoIter = core::slice::Iter<'a, T>;
fn into_iter(self) -> core::slice::Iter<'a, T> {
self.items.iter()
}
}
impl<'a, T> IntoIterator for &'a mut SequenceOf<T> {
type Item = &'a mut T;
type IntoIter = core::slice::IterMut<'a, T>;
fn into_iter(self) -> core::slice::IterMut<'a, T> {
self.items.iter_mut()
}
}
impl<T> From<SequenceOf<T>> for Vec<T> {
fn from(set: SequenceOf<T>) -> Self {
set.items
}
}
impl<T> FromIterator<T> for SequenceOf<T> {
fn from_iter<IT: IntoIterator<Item = T>>(iter: IT) -> Self {
let items = iter.into_iter().collect();
SequenceOf::new(items)
}
}
impl<'a, T> TryFrom<Any<'a>> for SequenceOf<T>
where
T: FromBer<'a>,
{
type Error = Error;
fn try_from(any: Any<'a>) -> Result<Self> {
any.tag().assert_eq(Self::TAG)?;
if !any.header.is_constructed() {
return Err(Error::ConstructExpected);
}
let items = SequenceIterator::<T, BerParser>::new(any.data).collect::<Result<Vec<T>>>()?;
Ok(SequenceOf::new(items))
}
}
impl<T> CheckDerConstraints for SequenceOf<T>
where
T: CheckDerConstraints,
{
fn check_constraints(any: &Any) -> Result<()> {
any.tag().assert_eq(Self::TAG)?;
any.header.assert_constructed()?;
for item in SequenceIterator::<Any, DerParser>::new(any.data) {
let item = item?;
T::check_constraints(&item)?;
}
Ok(())
}
}
impl<T> DerAutoDerive for SequenceOf<T> {}
impl<T> Tagged for SequenceOf<T> {
const TAG: Tag = Tag::Sequence;
}
#[cfg(feature = "std")]
impl<T> ToDer for SequenceOf<T>
where
T: ToDer,
{
fn to_der_len(&self) -> Result<usize> {
self.items.to_der_len()
}
fn write_der_header(&self, writer: &mut dyn std::io::Write) -> SerializeResult<usize> {
self.items.write_der_header(writer)
}
fn write_der_content(&self, writer: &mut dyn std::io::Write) -> SerializeResult<usize> {
self.items.write_der_content(writer)
}
}