Trait MessageEncode
pub trait MessageEncode<T, R>: Sized {
// Required methods
fn write_message(item: T, writer: MessageWriter<'_, '_, R>);
fn compute_message_size(item: &mut T, sizer: MessageSizer<'_>);
}Expand description
The MessageEncode trait provides a message encoder for type T.
R is the external resource type, which allows encoding objects with
non-protobuf resources such as file descriptors. Most implementors of this
trait will be generic over all R.
Required Methods§
fn write_message(item: T, writer: MessageWriter<'_, '_, R>)
fn write_message(item: T, writer: MessageWriter<'_, '_, R>)
Writes item as a message.
fn compute_message_size(item: &mut T, sizer: MessageSizer<'_>)
fn compute_message_size(item: &mut T, sizer: MessageSizer<'_>)
Computes the size of item as a message.
Encoding will panic if the write_message call writes a different
number of bytes than computed by this call.
Takes a mut reference to allow mutating/stabilizing the value so that
the subsequent call to write_message acts on the same value as this
call.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.