Struct RetentionPolicy 

pub struct RetentionPolicy {
    pub budget: RetentionBudget,
    pub eviction: RetentionEvictionPolicy,
}

How a composition limits and evicts retained content: the budget it may keep and the order in which it drops subtrees that exceed the budget.

Fields

budget: RetentionBudget

The limits on how much retained content the composition keeps.

eviction: RetentionEvictionPolicy

Which retained subtree is evicted first when the budget is exceeded.

Implementations

impl RetentionPolicy

pub const UNBOUNDED: Self

A policy with an unbounded budget that evicts the least recently detached subtree first.

Trait Implementations

impl Clone for RetentionPolicy

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RetentionPolicy

impl Debug for RetentionPolicy

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

Formats the value using the given formatter.

impl Default for RetentionPolicy

fn default() -> Self

Returns the “default value” for a type.

impl Eq for RetentionPolicy

impl PartialEq for RetentionPolicy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RetentionPolicy