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use crate::borrow::Cow;
use crate::collections::TryReserveError;
use crate::fmt;
use crate::fmt::Write;
use crate::mem;
use crate::rc::Rc;
use crate::str;
use crate::sync::Arc;
use crate::sys_common::{AsInner, IntoInner};
use core::str::lossy::{Utf8Lossy, Utf8LossyChunk};
#[cfg(test)]
#[path = "../unix/os_str/tests.rs"]
mod tests;
#[derive(Hash)]
#[repr(transparent)]
pub struct Buf {
pub inner: Vec<u8>,
}
#[repr(transparent)]
pub struct Slice {
pub inner: [u8],
}
impl fmt::Debug for Slice {
fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
formatter.write_str("\"")?;
for Utf8LossyChunk { valid, broken } in Utf8Lossy::from_bytes(&self.inner).chunks() {
for c in valid.chars().flat_map(|c| c.escape_debug()) {
formatter.write_char(c)?
}
for b in broken {
write!(formatter, "\\x{:02X}", b)?;
}
}
formatter.write_str("\"")
}
}
impl fmt::Display for Slice {
fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(&Utf8Lossy::from_bytes(&self.inner), formatter)
}
}
impl fmt::Debug for Buf {
fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Debug::fmt(self.as_slice(), formatter)
}
}
impl fmt::Display for Buf {
fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(self.as_slice(), formatter)
}
}
impl Clone for Buf {
#[inline]
fn clone(&self) -> Self {
Buf { inner: self.inner.clone() }
}
#[inline]
fn clone_from(&mut self, source: &Self) {
self.inner.clone_from(&source.inner)
}
}
impl IntoInner<Vec<u8>> for Buf {
fn into_inner(self) -> Vec<u8> {
self.inner
}
}
impl AsInner<[u8]> for Buf {
fn as_inner(&self) -> &[u8] {
&self.inner
}
}
impl Buf {
pub fn from_string(s: String) -> Buf {
Buf { inner: s.into_bytes() }
}
#[inline]
pub fn with_capacity(capacity: usize) -> Buf {
Buf { inner: Vec::with_capacity(capacity) }
}
#[inline]
pub fn clear(&mut self) {
self.inner.clear()
}
#[inline]
pub fn capacity(&self) -> usize {
self.inner.capacity()
}
#[inline]
pub fn reserve(&mut self, additional: usize) {
self.inner.reserve(additional)
}
#[inline]
pub fn try_reserve(&mut self, additional: usize) -> Result<(), TryReserveError> {
self.inner.try_reserve(additional)
}
#[inline]
pub fn reserve_exact(&mut self, additional: usize) {
self.inner.reserve_exact(additional)
}
#[inline]
pub fn try_reserve_exact(&mut self, additional: usize) -> Result<(), TryReserveError> {
self.inner.try_reserve_exact(additional)
}
#[inline]
pub fn shrink_to_fit(&mut self) {
self.inner.shrink_to_fit()
}
#[inline]
pub fn shrink_to(&mut self, min_capacity: usize) {
self.inner.shrink_to(min_capacity)
}
#[inline]
pub fn as_slice(&self) -> &Slice {
unsafe { mem::transmute(&*self.inner) }
}
#[inline]
pub fn as_mut_slice(&mut self) -> &mut Slice {
unsafe { mem::transmute(&mut *self.inner) }
}
pub fn into_string(self) -> Result<String, Buf> {
String::from_utf8(self.inner).map_err(|p| Buf { inner: p.into_bytes() })
}
pub fn push_slice(&mut self, s: &Slice) {
self.inner.extend_from_slice(&s.inner)
}
#[inline]
pub fn into_box(self) -> Box<Slice> {
unsafe { mem::transmute(self.inner.into_boxed_slice()) }
}
#[inline]
pub fn from_box(boxed: Box<Slice>) -> Buf {
let inner: Box<[u8]> = unsafe { mem::transmute(boxed) };
Buf { inner: inner.into_vec() }
}
#[inline]
pub fn into_arc(&self) -> Arc<Slice> {
self.as_slice().into_arc()
}
#[inline]
pub fn into_rc(&self) -> Rc<Slice> {
self.as_slice().into_rc()
}
}
impl Slice {
#[inline]
fn from_u8_slice(s: &[u8]) -> &Slice {
unsafe { mem::transmute(s) }
}
#[inline]
pub fn from_str(s: &str) -> &Slice {
Slice::from_u8_slice(s.as_bytes())
}
pub fn to_str(&self) -> Option<&str> {
str::from_utf8(&self.inner).ok()
}
pub fn to_string_lossy(&self) -> Cow<'_, str> {
String::from_utf8_lossy(&self.inner)
}
pub fn to_owned(&self) -> Buf {
Buf { inner: self.inner.to_vec() }
}
pub fn clone_into(&self, buf: &mut Buf) {
self.inner.clone_into(&mut buf.inner)
}
#[inline]
pub fn into_box(&self) -> Box<Slice> {
let boxed: Box<[u8]> = self.inner.into();
unsafe { mem::transmute(boxed) }
}
pub fn empty_box() -> Box<Slice> {
let boxed: Box<[u8]> = Default::default();
unsafe { mem::transmute(boxed) }
}
#[inline]
pub fn into_arc(&self) -> Arc<Slice> {
let arc: Arc<[u8]> = Arc::from(&self.inner);
unsafe { Arc::from_raw(Arc::into_raw(arc) as *const Slice) }
}
#[inline]
pub fn into_rc(&self) -> Rc<Slice> {
let rc: Rc<[u8]> = Rc::from(&self.inner);
unsafe { Rc::from_raw(Rc::into_raw(rc) as *const Slice) }
}
#[inline]
pub fn make_ascii_lowercase(&mut self) {
self.inner.make_ascii_lowercase()
}
#[inline]
pub fn make_ascii_uppercase(&mut self) {
self.inner.make_ascii_uppercase()
}
#[inline]
pub fn to_ascii_lowercase(&self) -> Buf {
Buf { inner: self.inner.to_ascii_lowercase() }
}
#[inline]
pub fn to_ascii_uppercase(&self) -> Buf {
Buf { inner: self.inner.to_ascii_uppercase() }
}
#[inline]
pub fn is_ascii(&self) -> bool {
self.inner.is_ascii()
}
#[inline]
pub fn eq_ignore_ascii_case(&self, other: &Self) -> bool {
self.inner.eq_ignore_ascii_case(&other.inner)
}
}