rust_lisp/model/
symbol.rs

1/**
2 * A String [newtype](https://rust-unofficial.github.io/patterns/patterns/behavioural/newtype.html)
3 * representing a lisp symbol (identifier)
4 */
5#[derive(Debug, Clone, PartialEq, Eq, Hash)]
6pub struct Symbol(pub String);
7
8impl From<&str> for Symbol {
9    fn from(s: &str) -> Self {
10        Symbol(String::from(s))
11    }
12}
13
14impl std::fmt::Display for Symbol {
15    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
16        std::fmt::Display::fmt(&self.0, f)
17    }
18}

rust_lisp/model/symbol.rs

rust_lisp/model/
symbol.rs