Trait FormatDiscovery 

pub trait FormatDiscovery {
    type Format;

    // Required methods
    fn started(&self);
    fn available(&self, formats: Vec<Self::Format>);
    fn failed(&self, message: String);
}

Defines the first-order observation stream of format discovery.

An observation is a method, so the reified stream is generated from this vocabulary rather than written out. An interpreter states what each observation means and never restates the shape.

Required Associated Types

type Format

Represents one described selectable format.

Required Methods

fn started(&self)

Denotes that an interpreter started source inspection.

fn available(&self, formats: Vec<Self::Format>)

Supplies the described formats in extractor preference order.

fn failed(&self, message: String)

Denotes source inspection failure.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors