Trait Catalog

pub trait Catalog {
    type Class<'a>;

    // Required methods
    fn default<'a>() -> Self::Class<'a>;
    fn style(&self, class: &Self::Class<'_>) -> Style;
}

Available on crate feature qr_code only.

The theme catalog of a QRCode.

Required Associated Types

type Class<'a>

The item class of the Catalog.

Required Methods

fn default<'a>() -> Self::Class<'a>

The default class produced by the Catalog.

fn style(&self, class: &Self::Class<'_>) -> Style

The Style of a class with the given status.

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

impl Catalog for Theme

type Class<'a> = Box<dyn Fn(&Theme) -> Style + 'a>