Struct DisplayValue 

pub struct DisplayValue<'a, const N: usize> { /* private fields */ }

A wrapper that enables core::fmt::Display for Lisp values.

Because formatting a value requires access to the arena (to follow cons-cell chains, read strings, etc.), this wrapper carries both the value index and a reference to the Lisp context.

Example

use grift_core::{Lisp, DisplayValue};

let lisp = Lisp::<1000>::new();
let nil = lisp.nil().unwrap();
let dv = DisplayValue::new(nil, &lisp);
// In a no_std context, use core::fmt::Write:
// write!(some_writer, "{}", dv).ok();

Implementations

impl<'a, const N: usize> DisplayValue<'a, N>

pub fn new(value: ArenaIndex, lisp: &'a Lisp<N>) -> DisplayValue<'a, N>

Create a new DisplayValue wrapper.

Trait Implementations

impl<const N: usize> Display for DisplayValue<'_, N>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.