Struct Effect 

pub struct Effect { /* private fields */ }

Effect hook that runs a callback and optionally cleans up.

Implementations

impl Effect

pub fn new<F>(effect: F) -> Self

where F: FnOnce() -> Option<Box<dyn FnOnce() + Send>> + Send + 'static,

Create a new effect.

pub fn with_deps<F>(effect: F, deps: Vec<u64>) -> Self

where F: FnOnce() -> Option<Box<dyn FnOnce() + Send>> + Send + 'static,

Create an effect with dependencies.

pub fn deps_changed(&self, new_deps: &[u64]) -> bool

Check if dependencies changed.

pub fn run(&mut self, new_deps: Option<&[u64]>) -> bool

Run the effect if dependencies changed.

pub fn cleanup(&mut self)

Run cleanup without running the effect.

pub fn has_cleanup(&self) -> bool

Check if the effect has a pending cleanup.

Trait Implementations

impl Debug for Effect

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

Formats the value using the given formatter.