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use std::{fmt, cmp};
use std::cmp::{PartialOrd, Ord, Ordering};
use std::hash::{Hash, Hasher};
use std::convert::TryFrom;
use crate::parsing;
use super::Error;
#[derive(Clone, Copy)]
pub struct Port<'a> {
pub(crate) data: &'a [u8]
}
impl<'a> Port<'a> {
pub fn as_ref(&self) -> &[u8] {
self.data
}
pub fn as_str(&self) -> &str {
unsafe {
std::str::from_utf8_unchecked(&self.data)
}
}
pub fn is_empty(&self) -> bool {
self.data.is_empty()
}
}
impl<'a> TryFrom<&'a str> for Port<'a> {
type Error = Error;
fn try_from(str: &'a str) -> Result<Port<'a>, Error> {
let port_len = parsing::parse_port(str.as_ref(), 0)?;
if port_len < str.len() {
Err(Error::InvalidPort)
} else {
Ok(Port {
data: str.as_ref()
})
}
}
}
impl<'a> fmt::Display for Port<'a> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.as_str().fmt(f)
}
}
impl<'a> fmt::Debug for Port<'a> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.as_str().fmt(f)
}
}
impl<'a> cmp::PartialEq for Port<'a> {
fn eq(&self, other: &Port) -> bool {
self.as_str() == other.as_str()
}
}
impl<'a> Eq for Port<'a> { }
impl<'a> cmp::PartialEq<&'a str> for Port<'a> {
fn eq(&self, other: &&'a str) -> bool {
self.as_str() == *other
}
}
impl<'a> PartialOrd for Port<'a> {
fn partial_cmp(&self, other: &Port<'a>) -> Option<Ordering> {
Some(self.cmp(other))
}
}
impl<'a> Ord for Port<'a> {
fn cmp(&self, other: &Port<'a>) -> Ordering {
self.as_str().cmp(other.as_str())
}
}
impl<'a> Hash for Port<'a> {
fn hash<H: Hasher>(&self, hasher: &mut H) {
self.as_str().hash(hasher)
}
}