[][src]Struct rustc_ap_rustc_data_structures::obligation_forest::ObligationForest

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

Implementations

impl<O: ForestObligation> ObligationForest<O>[src]

pub fn dump_graphviz<P: AsRef<Path>>(&self, dir: P, description: &str)[src]

Creates a graphviz representation of the obligation forest. Given a directory this will create files with name of the format <counter>_<description>.gv. The counter is global and is maintained internally.

Calling this will do nothing unless the environment variable DUMP_OBLIGATION_FOREST_GRAPHVIZ is defined.

A few post-processing that you might want to do make the forest easier to visualize:

  • sed 's,std::[a-z]*::,,g' — Deletes the std::<package>:: prefix of paths.
  • sed 's,"Binder(TraitPredicate(<\(.*\)>)) (\([^)]*\))","\1 (\2)",' — Transforms Binder(TraitPredicate(<predicate>)) into just <predicate>.

impl<O: ForestObligation> ObligationForest<O>[src]

pub fn new() -> ObligationForest<O>[src]

pub fn len(&self) -> usize[src]

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

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

Registers an obligation.

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

Converts all remaining obligations to the given error.

pub fn map_pending_obligations<P, F>(&self, f: F) -> Vec<P> where
    F: Fn(&O) -> P, 
[src]

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

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

Performs 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

impl<'a, O: ForestObligation + 'a> GraphWalk<'a> for &'a ObligationForest<O>[src]

type Node = usize

type Edge = (usize, usize)

impl<'a, O: ForestObligation + 'a> Labeller<'a> for &'a ObligationForest<O>[src]

type Node = usize

type Edge = (usize, usize)

Auto Trait Implementations

impl<O> !RefUnwindSafe for ObligationForest<O>

impl<O> Send for ObligationForest<O> where
    O: Send,
    <O as ForestObligation>::CacheKey: Send

impl<O> !Sync for ObligationForest<O>

impl<O> Unpin for ObligationForest<O> where
    O: Unpin,
    <O as ForestObligation>::CacheKey: Unpin

impl<O> UnwindSafe for ObligationForest<O> where
    O: UnwindSafe,
    <O as ForestObligation>::CacheKey: UnwindSafe

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<'a, T> Captures<'a> for T where
    T: ?Sized
[src]

impl<T> Erased for T[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<E> SpecializationError for E[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.