Enum HandlerEntry 

pub enum HandlerEntry {
    Simple(Arc<dyn Fn(&mut dyn Any) + Send + Sync>),
    WithValue(Arc<dyn Fn(&mut dyn Any, Box<dyn Any>) + Send + Sync>),
    WithCommand(Arc<dyn Fn(&mut dyn Any) -> Box<dyn Any> + Send + Sync>),
    WithShared(Arc<dyn Fn(&mut dyn Any, &dyn Any) + Send + Sync>),
    WithValueAndShared(Arc<dyn Fn(&mut dyn Any, Box<dyn Any>, &dyn Any) + Send + Sync>),
    WithCommandAndShared(Arc<dyn Fn(&mut dyn Any, &dyn Any) -> Box<dyn Any> + Send + Sync>),
}

Entry in the handler registry

Variants

Simple(Arc<dyn Fn(&mut dyn Any) + Send + Sync>)

Simple handler: fn(&mut Model)

WithValue(Arc<dyn Fn(&mut dyn Any, Box<dyn Any>) + Send + Sync>)

Handler with value: fn(&mut Model, T)

WithCommand(Arc<dyn Fn(&mut dyn Any) -> Box<dyn Any> + Send + Sync>)

Handler returning command: fn(&mut Model) -> Command<Message>

WithShared(Arc<dyn Fn(&mut dyn Any, &dyn Any) + Send + Sync>)

Handler with shared context: fn(&mut Model, &SharedContext<S>)

Use when the handler needs to read or write shared state.

WithValueAndShared(Arc<dyn Fn(&mut dyn Any, Box<dyn Any>, &dyn Any) + Send + Sync>)

Handler with value and shared: fn(&mut Model, T, &SharedContext<S>)

Use when the handler receives input value and needs shared state.

WithCommandAndShared(Arc<dyn Fn(&mut dyn Any, &dyn Any) -> Box<dyn Any> + Send + Sync>)

Handler with command and shared: fn(&mut Model, &SharedContext<S>) -> Command

Use when the handler needs shared state and returns a command.

Trait Implementations

impl Clone for HandlerEntry

fn clone(&self) -> HandlerEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HandlerEntry

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

Formats the value using the given formatter.