fixed-map-derive 0.8.1

use core::fmt;
use core::ops::Deref;
use syn::{Ident, Path};

#[derive(Copy, Clone)]
pub struct Symbol(&'static str);

pub(crate) const KEY: Symbol = Symbol("key");
pub(crate) const BITSET: Symbol = Symbol("bitset");

impl PartialEq<Symbol> for Ident {
    fn eq(&self, word: &Symbol) -> bool {
        self == word.0
    }
}

impl PartialEq<Symbol> for &Ident {
    fn eq(&self, word: &Symbol) -> bool {
        *self == word.0
    }
}

impl PartialEq<Symbol> for Path {
    fn eq(&self, word: &Symbol) -> bool {
        self.is_ident(word.0)
    }
}

impl PartialEq<Symbol> for &Path {
    fn eq(&self, word: &Symbol) -> bool {
        self.is_ident(word.0)
    }
}

impl fmt::Display for Symbol {
    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
        formatter.write_str(self.0)
    }
}

impl Deref for Symbol {
    type Target = str;

    fn deref(&self) -> &Self::Target {
        self.0
    }
}