Struct PrefixedState 

pub struct PrefixedState<'a> { /* private fields */ }

A borrowed view of state that automatically prepends a prefix to all keys.

Implementations

impl<'a> PrefixedState<'a>

pub fn get<T>(&self, key: &str) -> Option<T>

where T: DeserializeOwned,

Get a value by key (with prefix applied).

pub fn get_raw(&self, key: &str) -> Option<Value>

Get a raw JSON value by key (with prefix applied).

pub fn with<F, R>(&self, key: &str, f: F) -> Option<R>

where F: FnOnce(&Value) -> R,

Zero-copy borrow a value by key (with prefix applied).

pub fn set( &self, key: impl AsRef<str>, value: impl Serialize, ) -> Result<(), StateError>

Set a value by key (with prefix applied).

Returns StateError if value cannot be serialized to JSON.

pub fn contains(&self, key: &str) -> bool

Check if a key exists (with prefix applied).

pub fn remove(&self, key: &str) -> Option<Value>

Remove a key (with prefix applied).

pub fn keys(&self) -> Vec<String>

Get all keys within this prefix scope (prefix stripped from results).