Struct rustc_data_structures::obligation_forest::ObligationForest

pub struct ObligationForest<O: ForestObligation> { /* fields omitted */ }

Methods

impl<O: ForestObligation> ObligationForest<O>

pub fn new() -> ObligationForest<O>

pub fn len(&self) -> usize

Return the total number of nodes in the forest that have not yet been fully resolved.

pub fn register_obligation(&mut self, obligation: O)

Registers an obligation

This CAN be done in a snapshot

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn to_errors<E: Clone>(&mut self, error: E) -> Vec<Error<O, E>>

Convert all remaining obligations to the given error.

This cannot be done during a snapshot.

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn pending_obligations(&self) -> Vec<O> where
    O: Clone, 

Returns the set of obligations that are in a pending state.

pub fn process_obligations<P>(
    &mut self,
    processor: &mut P
) -> Outcome<O, P::Error> where
    P: ObligationProcessor<Obligation = O>, 

Perform a pass through the obligation list. This must be called in a loop until outcome.stalled is false.

This CANNOT be unrolled (presently, at least).

Trait Implementations