Trait ResourceResolver 

pub trait ResourceResolver: Send + Sync {
    // Required method
    fn bytes(&self, locator: &str) -> Result<Arc<[u8]>, ExtensionError>;

    // Provided method
    fn fonts(&self) -> Vec<Arc<[u8]>> { ... }
}

Bytes a source needs besides its own: an image sequence’s frames, and the fonts and images an SVG names. A provider never fetches anything else. It may be asked from inside a parser (usvg asks for each image it draws), which requires it to be shared across threads.

Required Methods

fn bytes(&self, locator: &str) -> Result<Arc<[u8]>, ExtensionError>

The bytes registered under locator.

Errors

ExtensionError::MissingResource when none are registered.

Provided Methods

fn fonts(&self) -> Vec<Arc<[u8]>>

Every registered font file, for documents that draw text.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl ResourceResolver for NoResources