Struct CallbackConditions 

pub struct CallbackConditions {
    pub only: Option<Vec<String>>,
    pub except: Option<Vec<String>>,
    pub if_cond: Option<ConditionPredicate>,
    pub unless_cond: Option<ConditionPredicate>,
}

Conditions that control when a callback is eligible to run.

Fields

only: Option<Vec<String>>

Optional allow-list of action names. When present, only listed actions match.

except: Option<Vec<String>>

Optional deny-list of action names. When present, listed actions do not match.

if_cond: Option<ConditionPredicate>

Predicate that must return true for the callback to run.

unless_cond: Option<ConditionPredicate>

Predicate that must return false for the callback to run.

Implementations

impl CallbackConditions

pub fn new() -> Self

Creates an empty set of callback conditions.

pub fn only<I, S>(self, actions: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Restricts the callback to the provided action names.

pub fn except<I, S>(self, actions: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Prevents the callback from running for the provided action names.

pub fn if_cond<F>(self, predicate: F) -> Self

where F: Fn(&dyn Any) -> bool + Send + Sync + 'static,

Adds a predicate that must return true for the callback to run.

pub fn unless_cond<F>(self, predicate: F) -> Self

where F: Fn(&dyn Any) -> bool + Send + Sync + 'static,

Adds a predicate that must return false for the callback to run.

Trait Implementations

impl Debug for CallbackConditions

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

Formats the value using the given formatter.

impl Default for CallbackConditions

fn default() -> CallbackConditions

Returns the “default value” for a type.