Enum TaskPersistence

pub enum TaskPersistence {
    Persistent,
    Transient,
    Local,
}

Variants

Persistent

Tasks that may be persisted across sessions using serialization.

Transient

Tasks that will be persisted in memory for the life of this session, but won’t persist between sessions.

This is used for root tasks and tasks with an argument of type TransientValue or TransientInstance.

Local

Tasks that are persisted only for the lifetime of the nearest non-Local parent caller.

This task does not have a unique task id, and is not shared with the backend. Instead it uses the parent task’s id.

This is useful for functions that have a low cache hit rate. Those functions could be converted to non-task functions, but that would break their function signature. This provides a mechanism for skipping caching without changing the function signature.

Trait Implementations

impl Clone for TaskPersistence

fn clone(&self) -> TaskPersistence

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TaskPersistence

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TaskPersistence

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for TaskPersistence

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for TaskPersistence

fn eq(&self, other: &TaskPersistence) -> 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 TaskPersistence

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TaskPersistence

impl Eq for TaskPersistence

impl StructuralPartialEq for TaskPersistence