Struct Env 

pub struct Env {
    pub root: Val,
    pub current: Val,
    /* private fields */
}

Fields

root: Val

current: Val

Implementations

impl Env

pub fn new_with_registry(root: Val, registry: Arc<MethodRegistry>) -> Self

pub fn with_current(&self, current: Val) -> Self

pub fn swap_current(&mut self, new: Val) -> Val

In-place swap of current — returns previous. Paired with restore_current this lets hot loops avoid cloning vars/root per iteration.

pub fn restore_current(&mut self, old: Val)

pub fn get_var(&self, name: &str) -> Option<&Val>

pub fn has_var(&self, name: &str) -> bool

pub fn with_var(&self, name: &str, val: Val) -> Self

Trait Implementations

impl Clone for Env

fn clone(&self) -> Env

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.