Function state_from_id

vm-migration/src/lib.rs:206–215

(s: Option<&'a Snapshot>, id: &str)

}

pub fn state_from_id<'a, T>(s: Option<&'a Snapshot>, id: &str) -> Result<Option<T>, MigratableError>
where
    T: Deserialize<'a>,
{
    if let Some(s) = s.as_ref() {
        s.snapshots.get(id).map(|s| s.to_state()).transpose()
    } else {
        Ok(None)
    }
}

/// A snapshottable component can be snapshotted.
pub trait Snapshottable: Pausable {