Struct BackendRouter 

pub struct BackendRouter;

Backend auto-picker.

Constructed with BackendRouter::new; queries the runtime inventory on demand so newly-registered backends participate without router rebuild.

Implementations

impl BackendRouter

pub fn new() -> Self

New router.

pub fn pick(&self, program: &Program) -> Result<RouterDecision, BackendError>

Pick the best-available backend for _program.

Errors

Returns BackendError when:

• VYRE_BACKEND is set to a backend id that is not registered.
• No executable registered GPU backend is found. Vyre reports this as a linkage or driver-visibility error instead of routing into reference evaluation.

pub fn pick_with_override( &self, _program: &Program, source: Override<'_>, ) -> Result<RouterDecision, BackendError>

Pick with an explicit override source - the testable form of pick.

Errors

Same conditions as pick.

pub fn enumerate_by_precedence() -> Vec<&'static BackendRegistration>

Enumerate every registered backend in precedence order. Inventory-driven per V7-EXT-021 - backends without a submitted BackendPrecedence trail every backend that has one (rank u32::MAX).

Trait Implementations

impl Default for BackendRouter

fn default() -> BackendRouter

Returns the “default value” for a type.