Trait LabelId 

pub trait LabelId:
    Copy
    + Eq
    + Hash
    + Debug
    + Send
    + Sync
    + 'static {
    // Required methods
    fn as_str(&self) -> &'static str;
    fn from_str(label: &str) -> Option<Self>;
}

Labels identify branches in internal/external choice.

Labels must be stable identifiers that can be sent across the wire and re-hydrated on the receiving side.

Required Methods

fn as_str(&self) -> &'static str

Stable textual identifier for serialization/logging.

fn from_str(label: &str) -> Option<Self>

Parse a label from its textual identifier.

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.

Implementors