Struct Snapshots 

pub struct Snapshots { /* private fields */ }

Named snapshots of values (workspaces or objects), kept as data.

Implementations

impl Snapshots

pub fn new() -> Self

An empty snapshot store.

pub fn take(&mut self, name: &str, value: Expr)

Take (or replace) a named snapshot of value.

pub fn restore(&self, name: &str) -> Option<Expr>

Restore a named snapshot.

pub fn names(&self) -> &[String]

The snapshot names in creation order.

Trait Implementations

impl Default for Snapshots

fn default() -> Snapshots

Returns the “default value” for a type.