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use crate::{ser::Serializer, ArchiveUnsized, MetadataResolver, RelPtr, SerializeUnsized};
use core::{
borrow::Borrow,
cmp, fmt, hash,
ops::{Deref, Index, RangeFull},
pin::Pin,
};
use std::ffi::CStr;
#[repr(transparent)]
pub struct ArchivedCString(RelPtr<CStr>);
impl ArchivedCString {
#[inline]
pub fn as_bytes(&self) -> &[u8] {
self.as_c_str().to_bytes()
}
#[inline]
pub fn as_bytes_with_nul(&self) -> &[u8] {
self.as_c_str().to_bytes_with_nul()
}
#[inline]
pub fn as_c_str(&self) -> &CStr {
unsafe { &*self.0.as_ptr() }
}
#[inline]
pub fn pin_mut_c_str(self: Pin<&mut Self>) -> Pin<&mut CStr> {
unsafe { self.map_unchecked_mut(|s| &mut *s.0.as_mut_ptr()) }
}
#[inline]
pub unsafe fn resolve_from_c_str(
c_str: &CStr,
pos: usize,
resolver: CStringResolver,
out: *mut Self,
) {
let (fp, fo) = out_field!(out.0);
#[allow(clippy::unit_arg)]
c_str.resolve_unsized(pos + fp, resolver.pos, resolver.metadata_resolver, fo);
}
#[inline]
pub fn serialize_from_c_str<S: Serializer + ?Sized>(
c_str: &CStr,
serializer: &mut S,
) -> Result<CStringResolver, S::Error> {
Ok(CStringResolver {
pos: c_str.serialize_unsized(serializer)?,
metadata_resolver: c_str.serialize_metadata(serializer)?,
})
}
}
impl AsRef<CStr> for ArchivedCString {
fn as_ref(&self) -> &CStr {
self.as_c_str()
}
}
impl Borrow<CStr> for ArchivedCString {
#[inline]
fn borrow(&self) -> &CStr {
self.as_c_str()
}
}
impl fmt::Debug for ArchivedCString {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.as_c_str().fmt(f)
}
}
impl Deref for ArchivedCString {
type Target = CStr;
#[inline]
fn deref(&self) -> &Self::Target {
self.as_c_str()
}
}
impl Eq for ArchivedCString {}
impl hash::Hash for ArchivedCString {
#[inline]
fn hash<H: hash::Hasher>(&self, state: &mut H) {
self.as_bytes_with_nul().hash(state);
}
}
impl Index<RangeFull> for ArchivedCString {
type Output = CStr;
#[inline]
fn index(&self, _: RangeFull) -> &Self::Output {
self.as_c_str()
}
}
impl Ord for ArchivedCString {
#[inline]
fn cmp(&self, other: &Self) -> cmp::Ordering {
self.as_bytes().cmp(other.as_bytes())
}
}
impl PartialEq for ArchivedCString {
#[inline]
fn eq(&self, other: &Self) -> bool {
self.as_bytes() == other.as_bytes()
}
}
impl PartialEq<&CStr> for ArchivedCString {
#[inline]
fn eq(&self, other: &&CStr) -> bool {
PartialEq::eq(self.as_c_str(), other)
}
}
impl PartialEq<ArchivedCString> for &CStr {
#[inline]
fn eq(&self, other: &ArchivedCString) -> bool {
PartialEq::eq(other.as_c_str(), self)
}
}
impl PartialOrd for ArchivedCString {
#[inline]
fn partial_cmp(&self, other: &Self) -> Option<cmp::Ordering> {
self.as_bytes().partial_cmp(other.as_bytes())
}
}
pub struct CStringResolver {
pos: usize,
metadata_resolver: MetadataResolver<CStr>,
}