Enum Fusion 

pub enum Fusion {
    Auto,
    TypedOnly,
    ErasedOnly,
}

Fusion preference for a graph node.

TypedOnly and ErasedOnly are active in M14-A1. Auto leaves the executor free to choose the best available tier. Datum deliberately does not insert async boundaries from this attribute in A1; explicit crate::AsyncBoundary stages remain the boundary mechanism.

Variants

Auto

Let the planner select the fastest supported tier.

TypedOnly

Require a typed executor tier and fail materialization if the graph would fall to erased.

ErasedOnly

Force the erased executor tier and report the tier change.

Trait Implementations

impl Clone for Fusion

fn clone(&self) -> Fusion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Fusion

impl Debug for Fusion

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

Formats the value using the given formatter.

impl Default for Fusion

fn default() -> Fusion

Returns the “default value” for a type.

impl Eq for Fusion

impl Hash for Fusion

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 Fusion

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Fusion