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Copy pathtraits.rs
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527 lines (478 loc) · 9.88 KB
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//! Non-operator trait implementations.
use core::{
borrow::{
Borrow,
BorrowMut,
},
cmp,
convert::TryFrom,
fmt::{
self,
Binary,
Debug,
Display,
Formatter,
LowerHex,
Octal,
UpperHex,
},
hash::{
Hash,
Hasher,
},
};
use funty::IsNumber;
use super::{
BitArray,
IntoIter,
};
use crate::{
index::BitIdx,
order::BitOrder,
slice::BitSlice,
store::BitStore,
view::BitViewSized,
};
#[cfg(not(tarpaulin_include))]
impl<O, V> Borrow<BitSlice<O, V::Store>> for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline(always)]
fn borrow(&self) -> &BitSlice<O, V::Store> {
self.as_bitslice()
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> BorrowMut<BitSlice<O, V::Store>> for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline(always)]
fn borrow_mut(&mut self) -> &mut BitSlice<O, V::Store> {
self.as_mut_bitslice()
}
}
impl<O, V> Clone for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn clone(&self) -> Self {
let mut out = Self::ZERO;
for (dst, src) in
out.as_mut_raw_slice().iter_mut().zip(self.as_raw_slice())
{
dst.store_value(src.load_value());
}
out
}
}
impl<O, V> Eq for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
}
impl<O, V> Ord for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn cmp(&self, other: &Self) -> cmp::Ordering {
self.as_bitslice().cmp(other.as_bitslice())
}
}
impl<O1, O2, V, T> PartialEq<BitArray<O2, V>> for BitSlice<O1, T>
where
O1: BitOrder,
O2: BitOrder,
V: BitViewSized,
T: BitStore,
{
#[inline]
fn eq(&self, other: &BitArray<O2, V>) -> bool {
self == other.as_bitslice()
}
}
impl<O, V, Rhs> PartialEq<Rhs> for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
Rhs: ?Sized,
BitSlice<O, V::Store>: PartialEq<Rhs>,
{
#[inline]
fn eq(&self, other: &Rhs) -> bool {
self.as_bitslice() == other
}
}
impl<O, V, T> PartialOrd<BitArray<O, V>> for BitSlice<O, T>
where
O: BitOrder,
V: BitViewSized,
T: BitStore,
{
#[inline]
fn partial_cmp(&self, other: &BitArray<O, V>) -> Option<cmp::Ordering> {
self.partial_cmp(other.as_bitslice())
}
}
impl<O, V, Rhs> PartialOrd<Rhs> for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
Rhs: ?Sized,
BitSlice<O, V::Store>: PartialOrd<Rhs>,
{
#[inline]
fn partial_cmp(&self, other: &Rhs) -> Option<cmp::Ordering> {
self.as_bitslice().partial_cmp(other)
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> AsRef<BitSlice<O, V::Store>> for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline(always)]
fn as_ref(&self) -> &BitSlice<O, V::Store> {
self.as_bitslice()
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> AsMut<BitSlice<O, V::Store>> for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline(always)]
fn as_mut(&mut self) -> &mut BitSlice<O, V::Store> {
self.as_mut_bitslice()
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> From<V> for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline(always)]
fn from(data: V) -> Self {
Self::new(data)
}
}
impl<'a, O, T> TryFrom<&'a BitSlice<O, T>> for BitArray<O, T>
where
O: BitOrder,
T: BitStore,
{
type Error = TryFromBitSliceError<'a, O, T>;
#[inline]
fn try_from(src: &'a BitSlice<O, T>) -> Result<Self, Self::Error> {
if src.len() != <T::Mem as IsNumber>::BITS as usize {
return Self::Error::err(src);
}
let mut out = Self::ZERO;
out.copy_from_bitslice(src);
Ok(out)
}
}
impl<'a, O, T, const N: usize> TryFrom<&'a BitSlice<O, T>>
for BitArray<O, [T; N]>
where
O: BitOrder,
T: BitStore,
{
type Error = TryFromBitSliceError<'a, O, T>;
#[inline]
fn try_from(src: &'a BitSlice<O, T>) -> Result<Self, Self::Error> {
if src.len() != <T::Mem as IsNumber>::BITS as usize * N {
return Self::Error::err(src);
}
let mut out = Self::ZERO;
out.copy_from_bitslice(src);
Ok(out)
}
}
impl<'a, O, T> TryFrom<&'a BitSlice<O, T>> for &'a BitArray<O, T>
where
O: BitOrder,
T: BitStore,
{
type Error = TryFromBitSliceError<'a, O, T>;
#[inline]
fn try_from(src: &'a BitSlice<O, T>) -> Result<Self, Self::Error> {
let bitspan = src.as_bitspan();
// This pointer cast can only happen if the slice is exactly as long as
// the array, and is aligned to the front of the element.
if src.len() != <T::Mem as IsNumber>::BITS as usize
|| bitspan.head() != BitIdx::ZERO
{
return Self::Error::err(src);
}
Ok(unsafe { &*(bitspan.address().to_const() as *const BitArray<O, T>) })
}
}
impl<'a, O, T, const N: usize> TryFrom<&'a BitSlice<O, T>>
for &'a BitArray<O, [T; N]>
where
O: BitOrder,
T: BitStore,
{
type Error = TryFromBitSliceError<'a, O, T>;
#[inline]
fn try_from(src: &'a BitSlice<O, T>) -> Result<Self, Self::Error> {
let bitspan = src.as_bitspan();
if src.len() != <T::Mem as IsNumber>::BITS as usize * N
|| bitspan.head() != BitIdx::ZERO
{
return Self::Error::err(src);
}
Ok(unsafe {
&*(bitspan.address().to_const() as *const BitArray<O, [T; N]>)
})
}
}
impl<'a, O, T> TryFrom<&'a mut BitSlice<O, T>> for &'a mut BitArray<O, T>
where
O: BitOrder,
T: BitStore,
{
type Error = TryFromBitSliceError<'a, O, T>;
#[inline]
fn try_from(src: &'a mut BitSlice<O, T>) -> Result<Self, Self::Error> {
let bitspan = src.as_mut_bitspan();
if src.len() != <T::Mem as IsNumber>::BITS as usize
|| bitspan.head() != BitIdx::ZERO
{
return Self::Error::err(&*src);
}
Ok(unsafe { &mut *(bitspan.address().to_mut() as *mut BitArray<O, T>) })
}
}
impl<'a, O, T, const N: usize> TryFrom<&'a mut BitSlice<O, T>>
for &'a mut BitArray<O, [T; N]>
where
O: BitOrder,
T: BitStore,
{
type Error = TryFromBitSliceError<'a, O, T>;
#[inline]
fn try_from(src: &'a mut BitSlice<O, T>) -> Result<Self, Self::Error> {
let bitspan = src.as_mut_bitspan();
if src.len() != <T::Mem as IsNumber>::BITS as usize * N
|| bitspan.head() != BitIdx::ZERO
{
return Self::Error::err(&*src);
}
Ok(unsafe {
&mut *(bitspan.address().to_mut() as *mut BitArray<O, [T; N]>)
})
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> Default for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline(always)]
fn default() -> Self {
Self::ZERO
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> Binary for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
Binary::fmt(self.as_bitslice(), fmt)
}
}
impl<O, V> Debug for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
self.as_bitspan().render(fmt, "Array", None)?;
fmt.write_str(" ")?;
Display::fmt(self, fmt)
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> Display for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
Display::fmt(self.as_bitslice(), fmt)
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> LowerHex for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
LowerHex::fmt(self.as_bitslice(), fmt)
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> Octal for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
Octal::fmt(self.as_bitslice(), fmt)
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> UpperHex for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
UpperHex::fmt(self.as_bitslice(), fmt)
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> Hash for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
#[inline]
fn hash<H>(&self, hasher: &mut H)
where H: Hasher {
self.as_bitslice().hash(hasher)
}
}
#[cfg(not(tarpaulin_include))]
impl<O, V> IntoIterator for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
type IntoIter = IntoIter<O, V>;
type Item = bool;
#[inline(always)]
fn into_iter(self) -> Self::IntoIter {
IntoIter::new(self)
}
}
#[cfg(not(tarpaulin_include))]
impl<'a, O, V> IntoIterator for &'a BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
type IntoIter = <&'a BitSlice<O, V::Store> as IntoIterator>::IntoIter;
type Item = <&'a BitSlice<O, V::Store> as IntoIterator>::Item;
#[inline]
fn into_iter(self) -> Self::IntoIter {
self.as_bitslice().into_iter()
}
}
#[cfg(not(tarpaulin_include))]
impl<'a, O, V> IntoIterator for &'a mut BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
type IntoIter = <&'a mut BitSlice<O, V::Store> as IntoIterator>::IntoIter;
type Item = <&'a mut BitSlice<O, V::Store> as IntoIterator>::Item;
#[inline]
fn into_iter(self) -> Self::IntoIter {
self.as_mut_bitslice().into_iter()
}
}
impl<O, V> Copy for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized + Copy,
{
}
impl<O, V> Unpin for BitArray<O, V>
where
O: BitOrder,
V: BitViewSized,
{
}
/** The error type returned when a conversion from a [`BitSlice`] to a
[`BitArray`] fails.
[`BitArray`]: crate::array::BitArray
[`BitSlice`]: crate::slice::BitSlice
**/
#[repr(transparent)]
#[derive(Clone, Copy, Eq, Ord, PartialEq, PartialOrd)]
pub struct TryFromBitSliceError<'a, O, T>
where
O: BitOrder,
T: BitStore,
{
inner: &'a BitSlice<O, T>,
}
#[cfg(not(tarpaulin_include))]
impl<'a, O, T> TryFromBitSliceError<'a, O, T>
where
O: BitOrder,
T: BitStore,
{
#[inline(always)]
fn err<A>(inner: &'a BitSlice<O, T>) -> Result<A, Self> {
Err(Self { inner })
}
}
#[cfg(not(tarpaulin_include))]
impl<O, T> Debug for TryFromBitSliceError<'_, O, T>
where
O: BitOrder,
T: BitStore,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
fmt.debug_struct("TryFromBitSliceError")
.field("inner", &self.inner)
.finish()
}
}
#[cfg(not(tarpaulin_include))]
impl<O, T> Display for TryFromBitSliceError<'_, O, T>
where
O: BitOrder,
T: BitStore,
{
#[inline]
fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
fmt.write_fmt(format_args!(
"could not convert bit-slice to bit-array: {:?}",
self.inner,
))
}
}
#[cfg(feature = "std")]
impl<'a, O, T> std::error::Error for TryFromBitSliceError<'a, O, T>
where
O: BitOrder,
T: BitStore,
{
}