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use std::borrow::Borrow; use std::fmt::{self, Display}; use std::ops::Deref; use std::rc::Rc; use gc::{unsafe_empty_trace, Finalize, Trace}; #[derive(Debug, Finalize, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] pub struct RcString(Rc<str>); unsafe impl Trace for RcString { unsafe_empty_trace!(); } impl RcString { #[inline] pub fn as_str(&self) -> &str { &self.0 } } impl Default for RcString { #[inline] fn default() -> Self { Self(Rc::from(String::new())) } } impl Display for RcString { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { Display::fmt(&self.0, f) } } impl PartialEq<str> for RcString { fn eq(&self, other: &str) -> bool { self.as_str() == other } } impl PartialEq<RcString> for str { fn eq(&self, other: &RcString) -> bool { self == other.as_str() } } impl PartialEq<&str> for RcString { fn eq(&self, other: &&str) -> bool { self.as_str() == *other } } impl PartialEq<RcString> for &str { fn eq(&self, other: &RcString) -> bool { *self == other.as_str() } } impl Deref for RcString { type Target = str; #[inline] fn deref(&self) -> &Self::Target { &self.0 } } impl Borrow<str> for RcString { #[inline] fn borrow(&self) -> &str { self.0.borrow() } } impl From<String> for RcString { #[inline] fn from(string: String) -> Self { Self(Rc::from(string)) } } impl From<&RcString> for String { #[inline] fn from(string: &RcString) -> Self { string.to_string() } } impl From<Box<str>> for RcString { #[inline] fn from(string: Box<str>) -> Self { Self(Rc::from(string)) } } impl From<&str> for RcString { #[inline] fn from(string: &str) -> Self { Self(Rc::from(string)) } }