Trait Present 

pub trait Present: Serialize {
    // Required method
    fn present(&self) -> Document;

    // Provided methods
    fn message_kind(&self) -> MessageKind { ... }
    fn exit_code(&self) -> u8 { ... }
}

A serializable domain model with one semantic human presentation.

Required Methods

fn present(&self) -> Document

Build the human document. JSON serializes self directly.

Provided Methods

fn message_kind(&self) -> MessageKind

Whether this value represents success or failure.

fn exit_code(&self) -> u8

Process exit code. Typed protocols can distinguish usage errors from operational failures without changing their presentation stream.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors