use crate::builtins::Symbol;
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 RcSymbol(Rc<Symbol>);
unsafe impl Trace for RcSymbol {
unsafe_empty_trace!();
}
impl Display for RcSymbol {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.0.description() {
Some(desc) => write!(f, "Symbol({})", desc),
None => write!(f, "Symbol()"),
}
}
}
impl Deref for RcSymbol {
type Target = Symbol;
#[inline]
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl From<Symbol> for RcSymbol {
#[inline]
fn from(symbol: Symbol) -> Self {
Self(Rc::from(symbol))
}
}