Struct ActorEnvironment 

pub struct ActorEnvironment(/* private fields */);

The persistent environment owned by an actor instance.

The inner buffer is never exposed. Clones share the immutable buffer; a subsequent builder mutation creates a bounded private copy. Once placed on an Instance, only a shared view is exposed (AENV-1).

Implementations

impl ActorEnvironment

pub fn set<T: Serialize>( &mut self, key: Key<T>, value: T, ) -> Result<(), ActorEnvironmentError>

Store value under key while enforcing the environment’s entry and serialized-size bounds.

This is a construction API. The environment stored on an Instance is immutable because the runtime exposes no mutable instance accessor.

pub fn get<T: AttrValue + DeserializeOwned>(&self, key: Key<T>) -> Option<T>

Read the value stored under key, if present.

pub fn is_empty(&self) -> bool

Whether the environment holds no entries.

pub fn len(&self) -> usize

The number of entries in the environment.

Trait Implementations

impl Clone for ActorEnvironment

fn clone(&self) -> ActorEnvironment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ActorEnvironment

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ActorEnvironment

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ActorEnvironment

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ActorEnvironment

impl PartialEq for ActorEnvironment

Equality over the (key hash, serialized bytes) set, independent of insertion order. Construction and deserialization enforce one entry per key hash.

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ActorEnvironment

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.