Enum Propagation 

pub enum Propagation {
    Propagate,
    Halt,
    FlushOut,
}

A return value used by CallbackTable/Callbacks callbacks to indicate whether to flag dependent signals as stale and optionally also refresh ones not currently subscribed.

Variants

Propagate

Mark at least directly dependent signals as stale.
The runtime decides whether and when to refresh them.

Halt

Do not mark dependent signals as stale because of this Propagation.

FlushOut

Asks the runtime to refresh dependencies, even those that are not subscribed.

This should be transitive through Propagate of dependents,
but should not be transitive through Halt.

Hint

Use this variant to purge heavy or reference-counted resources store in dependent signals.

Trait Implementations

impl Clone for Propagation

fn clone(&self) -> Propagation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Propagation

impl Debug for Propagation

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

Formats the value using the given formatter.

impl Eq for Propagation

impl Ord for Propagation

fn cmp(&self, other: &Propagation) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Propagation

fn eq(&self, other: &Propagation) -> 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 PartialOrd for Propagation

fn partial_cmp(&self, other: &Propagation) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Propagation