Trait rustc_trait_selection::infer::canonical::ir::search_graph::Cx

pub trait Cx: Copy {
    type Input: Debug + Eq + Hash + Copy;
    type Result: Debug + Eq + Hash + Copy;
    type DepNodeIndex;
    type Tracked<T: Debug + Clone>: Debug;

    // Required methods
    fn mk_tracked<T>(
        self,
        data: T,
        dep_node_index: Self::DepNodeIndex,
    ) -> Self::Tracked<T>
       where T: Debug + Clone;
    fn get_tracked<T>(self, tracked: &Self::Tracked<T>) -> T
       where T: Debug + Clone;
    fn with_cached_task<T>(
        self,
        task: impl FnOnce() -> T,
    ) -> (T, Self::DepNodeIndex);
    fn with_global_cache<R>(
        self,
        mode: SolverMode,
        f: impl FnOnce(&mut GlobalCache<Self>) -> R,
    ) -> R;
}

The search graph does not simply use Interner directly to enable its fuzzing without having to stub the rest of the interner. We don’t make this a super trait of Interner as users of the shared type library shouldn’t have to care about Input and Result as they are implementation details of the search graph.

Required Associated Types

type Input: Debug + Eq + Hash + Copy

type Result: Debug + Eq + Hash + Copy

type DepNodeIndex

type Tracked<T: Debug + Clone>: Debug

Required Methods

fn mk_tracked<T>( self, data: T, dep_node_index: Self::DepNodeIndex, ) -> Self::Tracked<T>

where T: Debug + Clone,

fn get_tracked<T>(self, tracked: &Self::Tracked<T>) -> T

where T: Debug + Clone,

fn with_cached_task<T>( self, task: impl FnOnce() -> T, ) -> (T, Self::DepNodeIndex)

fn with_global_cache<R>( self, mode: SolverMode, f: impl FnOnce(&mut GlobalCache<Self>) -> R, ) -> R

Object Safety

This trait is not object safe.

Implementors

impl<I> Cx for I

where I: Interner,

type Input = Canonical<I, QueryInput<I, <I as Interner>::Predicate>>

type Result = Result<Canonical<I, Response<I>>, NoSolution>

type DepNodeIndex = <I as Interner>::DepNodeIndex

type Tracked<T: Debug + Clone> = <I as Interner>::Tracked<T>