Struct rustc_trait_selection::infer::canonical::QueryRegionConstraints

pub struct QueryRegionConstraints<'tcx> {
    pub outlives: Vec<(OutlivesPredicate<TyCtxt<'tcx>, GenericArg<'tcx>>, ConstraintCategory<'tcx>)>,
    pub member_constraints: Vec<MemberConstraint<'tcx>>,
}

Fields

outlives: Vec<(OutlivesPredicate<TyCtxt<'tcx>, GenericArg<'tcx>>, ConstraintCategory<'tcx>)>

member_constraints: Vec<MemberConstraint<'tcx>>

Implementations

impl QueryRegionConstraints<'_>

pub fn is_empty(&self) -> bool

Represents an empty (trivially true) set of region constraints.

Trait Implementations

impl<'tcx> ArenaAllocatable<'tcx> for QueryRegionConstraints<'tcx>

fn allocate_on<'a>( self, arena: &'a Arena<'tcx>, ) -> &'a mut QueryRegionConstraints<'tcx>

fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = QueryRegionConstraints<'tcx>>, ) -> &'a mut [QueryRegionConstraints<'tcx>]

impl<'tcx> Clone for QueryRegionConstraints<'tcx>

fn clone(&self) -> QueryRegionConstraints<'tcx>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'tcx> Debug for QueryRegionConstraints<'tcx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'tcx> Default for QueryRegionConstraints<'tcx>

fn default() -> QueryRegionConstraints<'tcx>

Returns the “default value” for a type.

impl<'tcx> Hash for QueryRegionConstraints<'tcx>

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for QueryRegionConstraints<'tcx>

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher<SipHasher128>, )

impl<'tcx> PartialEq for QueryRegionConstraints<'tcx>

fn eq(&self, other: &QueryRegionConstraints<'tcx>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for QueryRegionConstraints<'tcx>

fn try_fold_with<__F>( self, __folder: &mut __F, ) -> Result<QueryRegionConstraints<'tcx>, <__F as FallibleTypeFolder<TyCtxt<'tcx>>>::Error>

where __F: FallibleTypeFolder<TyCtxt<'tcx>>,

The entry point for folding. To fold a value t with a folder f call: t.try_fold_with(f).

fn fold_with<F>(self, folder: &mut F) -> Self

where F: TypeFolder<I>,

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.

impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for QueryRegionConstraints<'tcx>

fn visit_with<__V>( &self, __visitor: &mut __V, ) -> <__V as TypeVisitor<TyCtxt<'tcx>>>::Result

where __V: TypeVisitor<TyCtxt<'tcx>>,

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v).

impl<'tcx> Eq for QueryRegionConstraints<'tcx>

impl<'tcx> StructuralPartialEq for QueryRegionConstraints<'tcx>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 48 bytes