Enum MessagePtr 

pub enum MessagePtr {
    Shared(Arc<dyn Message>),
    Static(&'static dyn Message),
}

Reference-counted wrapper around a Message.

Provides type-safe downcasting to recover the concrete message type. For zero-sized messages, avoids heap allocation entirely.

Variants

Shared(Arc<dyn Message>)

Static(&'static dyn Message)

Implementations

impl MessagePtr

pub fn new<T: Message + 'static>(msg: T) -> Self

Creates a new MessagePtr. For zero-sized types this avoids heap allocation by using a static reference — ZSTs have no data, only the vtable pointer matters.

pub fn try_as_type<T: 'static>(&self) -> Option<&T>

Attempts to downcast to T. Returns None if the type does not match.

pub fn is<T: 'static>(&self) -> bool

Returns true if the contained message is of type T.

pub fn as_type<T: 'static>(&self) -> &T

Downcasts to T, panicking if the type does not match.

pub fn virtual_size(&self) -> usize

Returns the virtual size of the message for bandwidth simulation.

Trait Implementations

impl Clone for MessagePtr

fn clone(&self) -> MessagePtr

Returns a duplicate of the value.

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

Performs copy-assignment from source.