Struct rustc_middle::traits::query::DropckConstraint

pub struct DropckConstraint<'tcx> {
    pub outlives: Vec<GenericArg<'tcx>>,
    pub dtorck_types: Vec<Ty<'tcx>>,
    pub overflows: Vec<Ty<'tcx>>,
}

A set of constraints that need to be satisfied in order for a type to be valid for destruction.

Fields

outlives: Vec<GenericArg<'tcx>>

Types that are required to be alive in order for this type to be valid for destruction.

dtorck_types: Vec<Ty<'tcx>>

Types that could not be resolved: projections and params.

overflows: Vec<Ty<'tcx>>

If, during the computation of the dtorck constraint, we overflow, that gets recorded here. The caller is expected to report an error.

Implementations

impl<'tcx> DropckConstraint<'tcx>

pub fn empty() -> DropckConstraint<'tcx>

Trait Implementations

impl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for DropckConstraint<'tcx>

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

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

impl<'tcx> Clone for DropckConstraint<'tcx>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for DropckConstraint<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> FromIterator<DropckConstraint<'tcx>> for DropckConstraint<'tcx>

fn from_iter<I: IntoIterator<Item = DropckConstraint<'tcx>>>(iter: I) -> Self

Creates a value from an iterator.

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

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

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: 72 bytes