Crate grift 

Grift – A Minimalistic Lisp

A simple Lisp built on top of grift_arena, the arena allocator.

Features

• No-std, no-alloc: Works in embedded environments with no heap
• Arena-allocated: All values live in a fixed-size arena
• Simple API: Parse and evaluate Lisp expressions in one call

Example

use grift::{Lisp, Value};

let lisp: Lisp<20000> = Lisp::new();
let three = lisp.eval("(+ 1 2)");
assert_eq!(three, Ok(Value::Number(3)));

Structs

ArenaIndex

Index into the arena.

ArenaStats

Statistics about arena usage.

BuiltinId

Type-safe identifier for built-in functions.

GcStats

Statistics returned by garbage collection.

Lisp

A minimalistic Lisp interpreter backed by a fixed-size arena.

Enums

ArenaError

Errors that can occur during arena and Lisp operations.

Value

A Lisp value stored in the arena. Variants can only inline max two arenaindex sized data.

Type Aliases

ArenaResult

Result type for arena operations.