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use std::{ str, slice, fmt };
use std::ops::Deref;
#[derive(Clone, Copy)]
pub struct OwnedSlice {
ptr: *const u8,
len: usize,
}
impl OwnedSlice {
#[inline]
pub unsafe fn from_str(source: &str) -> Self {
OwnedSlice {
ptr: source.as_ptr(),
len: source.len(),
}
}
#[inline]
pub fn from_static(source: &'static str) -> Self {
OwnedSlice {
ptr: source.as_ptr(),
len: source.len(),
}
}
#[inline]
pub fn as_str(&self) -> &str {
unsafe {
str::from_utf8_unchecked(self.as_bytes())
}
}
#[inline]
pub fn as_bytes(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self.ptr, self.len)
}
}
#[inline]
pub fn len(&self) -> usize {
self.len
}
}
impl From<&'static str> for OwnedSlice {
#[inline]
fn from(source: &'static str) -> Self {
OwnedSlice {
ptr: source.as_ptr(),
len: source.len(),
}
}
}
impl Deref for OwnedSlice {
type Target = str;
#[inline]
fn deref(&self) -> &str {
self.as_str()
}
}
impl PartialEq for OwnedSlice {
#[inline]
fn eq(&self, other: &OwnedSlice) -> bool {
self.as_str() == other.as_str()
}
}
impl fmt::Debug for OwnedSlice {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Debug::fmt(self.as_str(), f)
}
}
impl fmt::Display for OwnedSlice {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Display::fmt(self.as_str(), f)
}
}