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#[allow(unused)] use std::ascii::AsciiExt; #[cfg(__unicase__iter_cmp)] use std::cmp::Ordering; use std::fmt; use std::hash::{Hash, Hasher}; use std::ops::{Deref, DerefMut}; use std::str::FromStr; use super::Ascii; impl<S> Ascii<S> { #[inline] pub fn new(s: S) -> Ascii<S> { Ascii(s) } } impl<S> Deref for Ascii<S> { type Target = S; #[inline] fn deref<'a>(&'a self) -> &'a S { &self.0 } } impl<S> DerefMut for Ascii<S> { #[inline] fn deref_mut<'a>(&'a mut self) -> &'a mut S { &mut self.0 } } #[cfg(__unicase__iter_cmp)] impl<T: AsRef<str>> PartialOrd for Ascii<T> { #[inline] fn partial_cmp(&self, other: &Self) -> Option<Ordering> { Some(self.cmp(other)) } } #[cfg(__unicase__iter_cmp)] impl<T: AsRef<str>> Ord for Ascii<T> { #[inline] fn cmp(&self, other: &Self) -> Ordering { let self_chars = self.as_ref().chars().map(|c| c.to_ascii_lowercase()); let other_chars = other.as_ref().chars().map(|c| c.to_ascii_lowercase()); self_chars.cmp(other_chars) } } impl<S: AsRef<str>> AsRef<str> for Ascii<S> { #[inline] fn as_ref(&self) -> &str { self.0.as_ref() } } impl<S: fmt::Display> fmt::Display for Ascii<S> { #[inline] fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { fmt::Display::fmt(&self.0, fmt) } } impl<S1: AsRef<str>> PartialEq<Ascii<S1>> for String { #[inline] fn eq(&self, other: &Ascii<S1>) -> bool { other == self } } impl<'a, S1: AsRef<str>> PartialEq<Ascii<S1>> for &'a str { #[inline] fn eq(&self, other: &Ascii<S1>) -> bool { other == self } } impl<S1: AsRef<str>, S2: AsRef<str>> PartialEq<S2> for Ascii<S1> { #[inline] fn eq(&self, other: &S2) -> bool { self.as_ref().eq_ignore_ascii_case(other.as_ref()) } } impl<S: AsRef<str>> Eq for Ascii<S> {} impl<S: FromStr> FromStr for Ascii<S> { type Err = <S as FromStr>::Err; fn from_str(s: &str) -> Result<Ascii<S>, <S as FromStr>::Err> { s.parse().map(Ascii) } } impl<S: AsRef<str>> Hash for Ascii<S> { #[inline] fn hash<H: Hasher>(&self, hasher: &mut H) { for byte in self.as_ref().bytes().map(|b| b.to_ascii_lowercase()) { hasher.write_u8(byte); } } } #[cfg(test)] mod tests { use ::Ascii; use std::hash::{Hash, Hasher}; #[cfg(not(__unicase__defauler_hasher))] use std::hash::SipHasher as DefaultHasher; #[cfg(__unicase__defauler_hasher)] use std::collections::hash_map::DefaultHasher; fn hash<T: Hash>(t: &T) -> u64 { let mut s = DefaultHasher::new(); t.hash(&mut s); s.finish() } #[test] fn test_case_insensitive() { let a = Ascii("foobar"); let b = Ascii("FOOBAR"); assert_eq!(a, b); assert_eq!(hash(&a), hash(&b)); assert_eq!(a, "fooBar"); assert_eq!("fooBar", a); assert_eq!(String::from("fooBar"), a); assert_eq!(a, String::from("fooBar")); } #[cfg(feature = "nightly")] #[bench] fn bench_ascii_eq(b: &mut ::test::Bencher) { b.bytes = b"foobar".len() as u64; b.iter(|| assert_eq!(Ascii("foobar"), Ascii("FOOBAR"))); } #[cfg(__unicase__iter_cmp)] #[test] fn test_case_cmp() { assert!(Ascii("foobar") == Ascii("FOOBAR")); assert!(Ascii("a") < Ascii("B")); assert!(Ascii("A") < Ascii("b")); assert!(Ascii("aa") > Ascii("a")); assert!(Ascii("a") < Ascii("aa")); assert!(Ascii("a") < Ascii("AA")); } }